Contra Costa County, CA UV Index Report
Contra Costa County, CA Daily UV Index Forecast Map
Contra Costa County, CA Clear Sky UV Index Averages
High Risk Area
YEAR | AVG | US AVG | UV INDEX # | EXPOSURE CATEGORY |
2015 | 5.7589 | 4.9 | <2 3-5 6-7 8-10 11+ |
LOW MODERATE HIGH VERY HIGH EXTREME |
2014 | 5.7940 | 4.9 | ||
2013 | 5.8819 | 4.9 | ||
2012 | 5.9560 | 4.9 | ||
2011 | 5.8192 | 4.9 | ||
Understanding the UV Index
What is the UV Index
Everyday the National Weather Service predicts the next day UV index forecast, this index can help you make choices to protect yourself from potentially
harmful sun rays.The UV Index Scale is a scale from 0 to 15, with 0 being the lowest risk and 15 being the highest risk.
2 or less: Low
3 to 5: Moderate
6 to 7: High
8 to 10: Very High
11+: Extreme
Health Effects of too much UV Index
Source: EPA
Contra Costa County, CA Daily UV Index
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
MonthAverageHighLow
January
1.65
3
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
February
3.41
5
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
March
4.55
7
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
April
6.8
8
4
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
May
7.42
9
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
June
9.73
11
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
July
10.42
11
10
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
August
9
10
8
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
6.97
8
5
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
3.81
5
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
November
2.73
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
1.71
3
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
2.45
3
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
February
3.5
5
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
March
5.42
7
3
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
April
7.07
9
3
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
May
7.71
10
5
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
June
9.53
11
6
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
July
9.35
10
6
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
August
8.87
10
7
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
6.53
8
3
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
4.52
6
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
November
2.37
3
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
1.65
2
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
2.06
3
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
February
2.79
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
March
4.74
7
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
April
7.3
9
4
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
May
8.42
10
7
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
June
9.6
11
9
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
July
10.03
11
9
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
August
8.55
9
7
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
7
9
5
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
4.61
7
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
November
2.63
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
1.74
2
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
2.42
3
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
February
3.5
5
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
March
5.45
7
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
April
7.7
9
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
May
8.42
10
6
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
June
9.07
11
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
July
9.8
10
8
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
August
8.68
10
8
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
6.67
8
3
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
4.26
5
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
10/15/2013
5
MODERATE
10/16/2013
5
MODERATE
November
2.6
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
2
2
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
2.23
3
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
1/1/2012
2
LOW
1/2/2012
2
LOW
1/3/2012
2
LOW
1/4/2012
2
LOW
1/5/2012
2
LOW
1/6/2012
2
LOW
1/7/2012
2
LOW
1/8/2012
2
LOW
1/9/2012
2
LOW
1/10/2012
2
LOW
1/11/2012
2
LOW
1/12/2012
2
LOW
1/13/2012
2
LOW
1/14/2012
2
LOW
1/15/2012
2
LOW
1/16/2012
2
LOW
1/17/2012
3
MODERATE
1/18/2012
1
LOW
1/19/2012
1
LOW
1/20/2012
2
LOW
1/21/2012
1
LOW
1/22/2012
2
LOW
1/23/2012
3
MODERATE
1/24/2012
3
MODERATE
1/25/2012
3
MODERATE
1/26/2012
3
MODERATE
1/27/2012
3
MODERATE
1/28/2012
3
MODERATE
1/29/2012
3
MODERATE
1/30/2012
3
MODERATE
1/31/2012
3
MODERATE
February
3.22
5
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
2/1/2012
3
MODERATE
2/2/2012
3
MODERATE
2/3/2012
3
MODERATE
2/4/2012
3
MODERATE
2/5/2012
3
MODERATE
2/6/2012
1
LOW
2/8/2012
4
MODERATE
2/9/2012
1
LOW
2/10/2012
3
MODERATE
2/11/2012
3
MODERATE
2/12/2012
3
MODERATE
2/13/2012
3
MODERATE
2/14/2012
3
MODERATE
2/15/2012
4
MODERATE
2/16/2012
4
MODERATE
2/17/2012
3
MODERATE
2/18/2012
3
MODERATE
2/19/2012
3
MODERATE
2/20/2012
4
MODERATE
2/21/2012
4
MODERATE
2/22/2012
5
MODERATE
2/23/2012
5
MODERATE
2/24/2012
4
MODERATE
2/26/2012
3
MODERATE
2/27/2012
4
MODERATE
2/28/2012
2
LOW
2/29/2012
3
MODERATE
March
4.65
7
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
3/1/2012
5
MODERATE
3/2/2012
5
MODERATE
3/3/2012
5
MODERATE
3/4/2012
6
HIGH
3/5/2012
4
MODERATE
3/6/2012
5
MODERATE
3/7/2012
5
MODERATE
3/8/2012
6
HIGH
3/9/2012
6
HIGH
3/10/2012
3
MODERATE
3/11/2012
5
MODERATE
3/12/2012
1
LOW
3/13/2012
3
MODERATE
3/14/2012
3
MODERATE
3/15/2012
3
MODERATE
3/16/2012
4
MODERATE
3/17/2012
5
MODERATE
3/18/2012
5
MODERATE
3/19/2012
4
MODERATE
3/20/2012
6
HIGH
3/21/2012
5
MODERATE
3/22/2012
6
HIGH
3/23/2012
1
LOW
3/24/2012
4
MODERATE
3/25/2012
6
HIGH
3/26/2012
2
LOW
3/27/2012
6
HIGH
3/28/2012
7
HIGH
3/29/2012
7
HIGH
3/30/2012
4
MODERATE
3/31/2012
7
HIGH
April
7.6
10
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
4/1/2012
8
VERY HIGH
4/2/2012
8
VERY HIGH
4/3/2012
7
HIGH
4/4/2012
6
HIGH
4/5/2012
7
HIGH
4/6/2012
7
HIGH
4/7/2012
7
HIGH
4/8/2012
7
HIGH
4/9/2012
2
LOW
4/10/2012
7
HIGH
4/11/2012
6
HIGH
4/12/2012
6
HIGH
4/13/2012
7
HIGH
4/14/2012
8
VERY HIGH
4/15/2012
8
VERY HIGH
4/16/2012
8
VERY HIGH
4/17/2012
8
VERY HIGH
4/18/2012
8
VERY HIGH
4/19/2012
9
VERY HIGH
4/20/2012
10
VERY HIGH
4/21/2012
10
VERY HIGH
4/22/2012
8
VERY HIGH
4/23/2012
8
VERY HIGH
4/24/2012
7
HIGH
4/25/2012
8
VERY HIGH
4/26/2012
9
VERY HIGH
4/27/2012
9
VERY HIGH
4/28/2012
8
VERY HIGH
4/29/2012
9
VERY HIGH
4/30/2012
8
VERY HIGH
May
9.13
11
6
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
5/1/2012
8
VERY HIGH
5/2/2012
8
VERY HIGH
5/3/2012
8
VERY HIGH
5/4/2012
8
VERY HIGH
5/5/2012
8
VERY HIGH
5/6/2012
8
VERY HIGH
5/7/2012
9
VERY HIGH
5/8/2012
9
VERY HIGH
5/9/2012
9
VERY HIGH
5/10/2012
9
VERY HIGH
5/11/2012
10
VERY HIGH
5/12/2012
10
VERY HIGH
5/13/2012
9
VERY HIGH
5/14/2012
10
VERY HIGH
5/15/2012
10
VERY HIGH
5/16/2012
9
VERY HIGH
5/17/2012
9
VERY HIGH
5/18/2012
10
VERY HIGH
5/19/2012
10
VERY HIGH
5/20/2012
10
VERY HIGH
5/21/2012
10
VERY HIGH
5/22/2012
10
VERY HIGH
5/23/2012
9
VERY HIGH
5/24/2012
6
HIGH
5/25/2012
8
VERY HIGH
5/26/2012
9
VERY HIGH
5/27/2012
9
VERY HIGH
5/28/2012
9
VERY HIGH
5/29/2012
11
EXTREME
5/30/2012
10
VERY HIGH
5/31/2012
11
EXTREME
June
9.5
11
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
6/1/2012
10
VERY HIGH
6/2/2012
10
VERY HIGH
6/3/2012
2
LOW
6/4/2012
9
VERY HIGH
6/5/2012
9
VERY HIGH
6/6/2012
10
VERY HIGH
6/7/2012
10
VERY HIGH
6/8/2012
9
VERY HIGH
6/9/2012
9
VERY HIGH
6/10/2012
9
VERY HIGH
6/11/2012
9
VERY HIGH
6/12/2012
10
VERY HIGH
6/13/2012
9
VERY HIGH
6/15/2012
10
VERY HIGH
6/16/2012
11
EXTREME
6/17/2012
10
VERY HIGH
6/18/2012
10
VERY HIGH
6/19/2012
11
EXTREME
6/20/2012
11
EXTREME
6/21/2012
9
VERY HIGH
6/22/2012
10
VERY HIGH
6/23/2012
10
VERY HIGH
6/24/2012
9
VERY HIGH
6/25/2012
10
VERY HIGH
6/26/2012
9
VERY HIGH
6/27/2012
10
VERY HIGH
6/28/2012
10
VERY HIGH
6/29/2012
11
EXTREME
6/30/2012
10
VERY HIGH
July
10.13
11
10
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
7/1/2012
10
VERY HIGH
7/2/2012
10
VERY HIGH
7/3/2012
10
VERY HIGH
7/4/2012
10
VERY HIGH
7/5/2012
10
VERY HIGH
7/6/2012
10
VERY HIGH
7/7/2012
10
VERY HIGH
7/8/2012
11
EXTREME
7/9/2012
11
EXTREME
7/10/2012
11
EXTREME
7/11/2012
10
VERY HIGH
7/12/2012
10
VERY HIGH
7/13/2012
10
VERY HIGH
7/14/2012
10
VERY HIGH
7/15/2012
10
VERY HIGH
7/16/2012
10
VERY HIGH
7/17/2012
10
VERY HIGH
7/18/2012
10
VERY HIGH
August
9.29
10
7
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
September
7.07
8
5
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
October
4.39
6
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
November
2.43
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
December
1.58
2
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
MonthAverageHighLow
January
2.45
3
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
1/1/2011
0
LOW
1/2/2011
2
LOW
1/3/2011
2
LOW
1/4/2011
2
LOW
1/5/2011
2
LOW
1/6/2011
3
MODERATE
1/7/2011
3
MODERATE
1/8/2011
2
LOW
1/9/2011
2
LOW
1/10/2011
1
LOW
1/11/2011
2
LOW
1/12/2011
0
LOW
1/13/2011
3
MODERATE
1/14/2011
3
MODERATE
1/15/2011
3
MODERATE
1/16/2011
3
MODERATE
1/17/2011
3
MODERATE
1/18/2011
2
LOW
1/19/2011
3
MODERATE
1/20/2011
3
MODERATE
1/21/2011
3
MODERATE
1/22/2011
3
MODERATE
1/23/2011
3
MODERATE
1/24/2011
3
MODERATE
1/25/2011
3
MODERATE
1/26/2011
3
MODERATE
1/27/2011
3
MODERATE
1/28/2011
3
MODERATE
1/29/2011
2
LOW
1/30/2011
3
MODERATE
1/31/2011
3
MODERATE
February
3.18
4
0
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
2/1/2011
3
MODERATE
2/2/2011
3
MODERATE
2/3/2011
3
MODERATE
2/4/2011
3
MODERATE
2/5/2011
3
MODERATE
2/6/2011
4
MODERATE
2/7/2011
4
MODERATE
2/8/2011
4
MODERATE
2/9/2011
4
MODERATE
2/10/2011
4
MODERATE
2/11/2011
4
MODERATE
2/12/2011
4
MODERATE
2/13/2011
0
LOW
2/14/2011
3
MODERATE
2/15/2011
3
MODERATE
2/16/2011
1
LOW
2/17/2011
1
LOW
2/18/2011
2
LOW
2/19/2011
4
MODERATE
2/20/2011
3
MODERATE
2/21/2011
4
MODERATE
2/22/2011
4
MODERATE
2/23/2011
3
MODERATE
2/24/2011
3
MODERATE
2/25/2011
3
MODERATE
2/26/2011
4
MODERATE
2/27/2011
4
MODERATE
2/28/2011
4
MODERATE
March
4.03
7
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
3/1/2011
1
LOW
3/2/2011
4
MODERATE
3/3/2011
4
MODERATE
3/4/2011
5
MODERATE
3/5/2011
1
LOW
3/6/2011
5
MODERATE
3/7/2011
5
MODERATE
3/8/2011
6
HIGH
3/9/2011
2
LOW
3/10/2011
5
MODERATE
3/11/2011
5
MODERATE
3/12/2011
3
MODERATE
3/13/2011
5
MODERATE
3/14/2011
3
MODERATE
3/15/2011
5
MODERATE
3/16/2011
5
MODERATE
3/17/2011
1
LOW
3/18/2011
2
LOW
3/19/2011
2
LOW
3/20/2011
4
MODERATE
3/21/2011
5
MODERATE
3/22/2011
3
MODERATE
3/23/2011
1
LOW
3/24/2011
5
MODERATE
3/25/2011
2
LOW
3/26/2011
3
MODERATE
3/27/2011
6
HIGH
3/28/2011
6
HIGH
3/29/2011
7
HIGH
3/30/2011
7
HIGH
3/31/2011
7
HIGH
April
7.13
9
4
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
4/1/2011
7
HIGH
4/2/2011
7
HIGH
4/3/2011
7
HIGH
4/4/2011
7
HIGH
4/5/2011
7
HIGH
4/6/2011
5
MODERATE
4/7/2011
5
MODERATE
4/8/2011
7
HIGH
4/9/2011
7
HIGH
4/10/2011
6
HIGH
4/11/2011
7
HIGH
4/12/2011
6
HIGH
4/13/2011
8
VERY HIGH
4/14/2011
8
VERY HIGH
4/15/2011
8
VERY HIGH
4/16/2011
8
VERY HIGH
4/17/2011
5
MODERATE
4/18/2011
8
VERY HIGH
4/19/2011
7
HIGH
4/20/2011
8
VERY HIGH
4/21/2011
7
HIGH
4/22/2011
7
HIGH
4/23/2011
7
HIGH
4/24/2011
4
MODERATE
4/25/2011
9
VERY HIGH
4/26/2011
9
VERY HIGH
4/27/2011
8
VERY HIGH
4/28/2011
8
VERY HIGH
4/29/2011
8
VERY HIGH
4/30/2011
9
VERY HIGH
May
8.23
10
5
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
5/1/2011
8
VERY HIGH
5/2/2011
9
VERY HIGH
5/3/2011
9
VERY HIGH
5/4/2011
9
VERY HIGH
5/5/2011
9
VERY HIGH
5/6/2011
9
VERY HIGH
5/7/2011
7
HIGH
5/8/2011
8
VERY HIGH
5/9/2011
9
VERY HIGH
5/10/2011
8
VERY HIGH
5/11/2011
9
VERY HIGH
5/12/2011
10
VERY HIGH
5/13/2011
7
HIGH
5/14/2011
7
HIGH
5/15/2011
5
MODERATE
5/16/2011
7
HIGH
5/17/2011
7
HIGH
5/18/2011
9
VERY HIGH
5/19/2011
9
VERY HIGH
5/20/2011
8
VERY HIGH
5/21/2011
8
VERY HIGH
5/22/2011
8
VERY HIGH
5/23/2011
9
VERY HIGH
5/24/2011
6
HIGH
5/25/2011
10
VERY HIGH
5/26/2011
10
VERY HIGH
5/27/2011
9
VERY HIGH
5/28/2011
8
VERY HIGH
5/29/2011
8
VERY HIGH
5/30/2011
8
VERY HIGH
5/31/2011
8
VERY HIGH
June
9
11
2
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
6/1/2011
7
HIGH
6/2/2011
5
MODERATE
6/3/2011
2
LOW
6/4/2011
7
HIGH
6/5/2011
8
VERY HIGH
6/6/2011
9
VERY HIGH
6/7/2011
9
VERY HIGH
6/8/2011
10
VERY HIGH
6/9/2011
10
VERY HIGH
6/10/2011
7
HIGH
6/11/2011
10
VERY HIGH
6/12/2011
10
VERY HIGH
6/13/2011
10
VERY HIGH
6/14/2011
10
VERY HIGH
6/15/2011
10
VERY HIGH
6/16/2011
9
VERY HIGH
6/17/2011
9
VERY HIGH
6/18/2011
9
VERY HIGH
6/19/2011
10
VERY HIGH
6/20/2011
10
VERY HIGH
6/21/2011
11
EXTREME
6/22/2011
10
VERY HIGH
6/23/2011
10
VERY HIGH
6/24/2011
10
VERY HIGH
6/25/2011
10
VERY HIGH
6/26/2011
10
VERY HIGH
6/27/2011
7
HIGH
6/28/2011
9
VERY HIGH
6/29/2011
11
EXTREME
6/30/2011
11
EXTREME
July
10.16
11
9
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
7/1/2011
11
EXTREME
7/2/2011
11
EXTREME
7/3/2011
11
EXTREME
7/4/2011
11
EXTREME
7/5/2011
11
EXTREME
7/6/2011
11
EXTREME
7/7/2011
11
EXTREME
7/8/2011
11
EXTREME
7/9/2011
10
VERY HIGH
7/10/2011
10
VERY HIGH
7/11/2011
10
VERY HIGH
7/12/2011
10
VERY HIGH
7/13/2011
10
VERY HIGH
7/14/2011
9
VERY HIGH
7/15/2011
9
VERY HIGH
7/16/2011
9
VERY HIGH
7/17/2011
10
VERY HIGH
7/18/2011
10
VERY HIGH
7/19/2011
10
VERY HIGH
7/20/2011
10
VERY HIGH
7/21/2011
10
VERY HIGH
7/22/2011
10
VERY HIGH
7/23/2011
11
EXTREME
7/24/2011
11
EXTREME
7/25/2011
10
VERY HIGH
7/26/2011
10
VERY HIGH
7/27/2011
9
VERY HIGH
7/28/2011
10
VERY HIGH
7/29/2011
10
VERY HIGH
7/30/2011
9
VERY HIGH
7/31/2011
10
VERY HIGH
August
9.32
10
8
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
8/1/2011
10
VERY HIGH
8/2/2011
10
VERY HIGH
8/3/2011
10
VERY HIGH
8/4/2011
10
VERY HIGH
8/5/2011
9
VERY HIGH
8/6/2011
10
VERY HIGH
8/7/2011
10
VERY HIGH
8/8/2011
10
VERY HIGH
8/9/2011
10
VERY HIGH
8/10/2011
10
VERY HIGH
8/11/2011
9
VERY HIGH
8/12/2011
10
VERY HIGH
8/13/2011
10
VERY HIGH
8/14/2011
10
VERY HIGH
8/15/2011
10
VERY HIGH
8/16/2011
9
VERY HIGH
8/17/2011
9
VERY HIGH
8/18/2011
9
VERY HIGH
8/19/2011
9
VERY HIGH
8/20/2011
9
VERY HIGH
8/21/2011
9
VERY HIGH
8/22/2011
9
VERY HIGH
8/23/2011
9
VERY HIGH
8/24/2011
9
VERY HIGH
8/25/2011
9
VERY HIGH
8/26/2011
9
VERY HIGH
8/27/2011
9
VERY HIGH
8/28/2011
9
VERY HIGH
8/29/2011
8
VERY HIGH
8/30/2011
8
VERY HIGH
8/31/2011
8
VERY HIGH
September
6.77
8
4
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
9/1/2011
8
VERY HIGH
9/2/2011
8
VERY HIGH
9/3/2011
8
VERY HIGH
9/4/2011
8
VERY HIGH
9/5/2011
8
VERY HIGH
9/6/2011
8
VERY HIGH
9/7/2011
8
VERY HIGH
9/8/2011
7
HIGH
9/9/2011
7
HIGH
9/10/2011
5
MODERATE
9/11/2011
7
HIGH
9/12/2011
7
HIGH
9/13/2011
7
HIGH
9/14/2011
7
HIGH
9/15/2011
7
HIGH
9/16/2011
6
HIGH
9/17/2011
6
HIGH
9/18/2011
7
HIGH
9/19/2011
7
HIGH
9/20/2011
6
HIGH
9/21/2011
6
HIGH
9/22/2011
6
HIGH
9/23/2011
6
HIGH
9/24/2011
4
MODERATE
9/25/2011
6
HIGH
9/26/2011
7
HIGH
9/27/2011
7
HIGH
9/28/2011
7
HIGH
9/29/2011
6
HIGH
9/30/2011
6
HIGH
October
4.74
6
4
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
10/1/2011
6
HIGH
10/2/2011
4
MODERATE
10/3/2011
5
MODERATE
10/4/2011
5
MODERATE
10/5/2011
4
MODERATE
10/6/2011
5
MODERATE
10/7/2011
5
MODERATE
10/8/2011
5
MODERATE
10/9/2011
4
MODERATE
10/10/2011
5
MODERATE
10/11/2011
6
HIGH
10/12/2011
6
HIGH
10/13/2011
6
HIGH
10/14/2011
5
MODERATE
10/15/2011
5
MODERATE
10/16/2011
5
MODERATE
10/17/2011
5
MODERATE
10/18/2011
5
MODERATE
10/19/2011
5
MODERATE
10/20/2011
5
MODERATE
10/21/2011
5
MODERATE
10/22/2011
5
MODERATE
10/23/2011
4
MODERATE
10/24/2011
4
MODERATE
10/25/2011
4
MODERATE
10/26/2011
4
MODERATE
10/27/2011
4
MODERATE
10/28/2011
4
MODERATE
10/29/2011
4
MODERATE
10/30/2011
4
MODERATE
10/31/2011
4
MODERATE
November
2.67
4
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
11/1/2011
4
MODERATE
11/2/2011
3
MODERATE
11/3/2011
3
MODERATE
11/4/2011
3
MODERATE
11/5/2011
3
MODERATE
11/6/2011
3
MODERATE
11/7/2011
3
MODERATE
11/8/2011
3
MODERATE
11/9/2011
3
MODERATE
11/10/2011
1
LOW
11/11/2011
3
MODERATE
11/12/2011
3
MODERATE
11/13/2011
3
MODERATE
11/14/2011
3
MODERATE
11/15/2011
3
MODERATE
11/16/2011
3
MODERATE
11/17/2011
2
LOW
11/18/2011
3
MODERATE
11/19/2011
2
LOW
11/20/2011
3
MODERATE
11/21/2011
2
LOW
11/22/2011
2
LOW
11/23/2011
2
LOW
11/24/2011
3
MODERATE
11/25/2011
3
MODERATE
11/26/2011
3
MODERATE
11/27/2011
2
LOW
11/28/2011
2
LOW
11/29/2011
2
LOW
11/30/2011
2
LOW
December
1.97
2
1
Date
Clear Sky UV Index
Exposure Category
Cloud
Coverage
Map
Coverage
Map
12/1/2011
2
LOW
12/2/2011
2
LOW
12/3/2011
2
LOW
12/4/2011
2
LOW
12/5/2011
2
LOW
12/6/2011
2
LOW
12/7/2011
2
LOW
12/8/2011
2
LOW
12/9/2011
2
LOW
12/10/2011
2
LOW
12/11/2011
2
LOW
12/12/2011
2
LOW
12/13/2011
2
LOW
12/14/2011
2
LOW
12/15/2011
2
LOW
12/16/2011
2
LOW
12/17/2011
2
LOW
12/18/2011
2
LOW
12/19/2011
2
LOW
12/20/2011
2
LOW
12/21/2011
2
LOW
12/22/2011
2
LOW
12/23/2011
2
LOW
12/24/2011
2
LOW
12/25/2011
2
LOW
12/26/2011
2
LOW
12/27/2011
2
LOW
12/28/2011
1
LOW
12/29/2011
2
LOW
12/30/2011
2
LOW
12/31/2011
2
LOW
Contra Costa County, CA area Highlights
Contra Costa County, CA Environment Summary
- Acalanes Ridge, CA UV Index Report
- Alamo, CA UV Index Report
- Alhambra Valley, CA UV Index Report
- Antioch, CA UV Index Report
- Bay Point, CA UV Index Report
- Bayview, CA UV Index Report
- Bethel Island, CA UV Index Report
- Blackhawk, CA UV Index Report
- Brentwood, CA UV Index Report
- Byron, CA UV Index Report
- Camino Tassajara, CA UV Index Report
- Canyon, CA UV Index Report
- Castle Hill, CA UV Index Report
- Clayton, CA UV Index Report
- Clyde, CA UV Index Report
- Concord, CA UV Index Report
- Contra Costa Centre, CA UV Index Report
- Crockett, CA UV Index Report
- Danville, CA UV Index Report
- Diablo, CA UV Index Report
- Discovery Bay, CA UV Index Report
- East Richmond Heights, CA UV Index Report
- El Cerrito, CA UV Index Report
- El Sobrante, CA UV Index Report
- Hercules, CA UV Index Report
- Kensington, CA UV Index Report
- Knightsen, CA UV Index Report
- Lafayette, CA UV Index Report
- Martinez, CA UV Index Report
- Montalvin Manor, CA UV Index Report
- Moraga, CA UV Index Report
- Mountain View, CA UV Index Report
- Norris Canyon, CA UV Index Report
- North Gate, CA UV Index Report
- North Richmond, CA UV Index Report
- Oakley, CA UV Index Report
- Orinda, CA UV Index Report
- Pacheco, CA UV Index Report
- Pinole, CA UV Index Report
- Pittsburg, CA UV Index Report
- Pleasant Hill, CA UV Index Report
- Port Costa, CA UV Index Report
- Reliez Valley, CA UV Index Report
- Richmond, CA UV Index Report
- Rodeo, CA UV Index Report
- Rollingwood, CA UV Index Report
- San Miguel, CA UV Index Report
- San Pablo, CA UV Index Report
- San Ramon, CA UV Index Report
- Saranap, CA UV Index Report
- Shell Ridge, CA UV Index Report
- Tara Hills, CA UV Index Report
- Vine Hill, CA UV Index Report
- Walnut Creek, CA UV Index Report