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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 75 °F 66 °F 51 °F
Mean Temperature 64 °F 56 °F 51 °F
Min Temperature 60 °F 46 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 14 9 0 274
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 6 1 190
Dew Point  
Dew Point 55 °F 39 °F 12 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 17 mph 5 mph 0 mph
Gust Wind - - -
Sea Level Pressure  
Sea Level Pressure 30.49 in 30.12 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Dec. 09, 2011 Rise Set
Actual Time 6:46 AM PST 4:44 PM PST
Civil Twilight 6:19 AM PST 5:12 PM PST
Nautical Twilight 5:47 AM PST 5:43 PM PST
Astronomical Twilight 5:17 AM PST 6:13 PM PST
Moon 4:12 PM PST (12/9) 5:58 AM PST (12/9)
Length of Visible Light 10h 53m
Length of Day
9h 58m
Waxing Gibbous, 99% of the Moon is Illuminated
Dec 9
Waxing Gibbous
Dec 10
Full
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter

Daily Weather History & Observations

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 69 64 60 30 23 19 31 21 15 29.87 29.83 29.80 20 11 10 17 14 - 0.00  
2 66 56 46 50 43 37 81 53 35 30.04 29.99 29.96 20 16 10 17 5 - 0.00  
3 66 56 46 45 29 18 81 37 16 30.19 30.11 30.05 20 17 10 9 5 - 0.00  
4 64 52 41 41 28 12 76 39 13 30.26 30.19 30.13 20 20 20 14 6 - 0.00  
5 68 54 41 37 28 14 81 39 12 30.26 30.23 30.19 20 20 20 8 2 - 0.00  
6 64 52 39 41 27 14 66 38 14 30.36 30.31 30.28 20 19 15 12 5 - 0.00  
7 69 56 42 45 26 18 43 29 16 30.23 30.16 30.09 20 18 15 16 6 - 0.00  
8 68 54 41 52 40 30 81 54 28 30.14 30.09 30.06 20 13 10 12 6 - 0.00  
9 68 56 44 54 44 36 77 58 35 30.18 30.14 30.10 20 16 10 14 4 - 0.00  
10 68 57 46 54 41 27 88 53 23 30.16 30.10 30.05 20 18 10 14 7 - 0.00  
11 60 55 50 50 47 45 94 73 55 30.03 29.95 29.90 20 12 7 12 3 - 0.00  
12 51 51 51 50 49 46 94 91 82 29.84 29.80 29.76 7 4 2 12 8 - 0.00 Rain
13 64 56 48 48 45 41 93 67 42 30.02 29.95 29.91 20 20 20 15 5 - 0.00  
14 62 54 46 50 48 45 93 74 55 30.29 30.25 30.16 15 10 7 9 4 - 0.00  
15 60 52 44 48 35 27 93 52 29 30.24 30.15 30.08 20 8 4 12 4 - 0.00  
16 69 56 42 45 35 27 81 42 25 30.12 30.08 30.03 20 20 20 9 2 - 0.00  
17 68 64 59 46 41 36 63 43 30 30.14 30.09 30.03 20 14 10 7 3 - 0.00 Rain
18 62 56 50 54 50 48 94 76 59 30.20 30.13 30.09 20 16 10 17 4 - 0.00  
19 60 55 50 52 50 48 94 78 68 30.11 30.07 30.02 15 10 7 13 5 - 0.00  
20 68 57 46 48 43 37 93 59 33 30.07 30.01 29.96 20 16 10 8 5 - 0.00  
21 66 56 46 54 50 41 88 72 56 30.08 30.04 29.99 20 12 6 6 3 - 0.00  
22 68 59 50 48 36 14 87 47 15 30.35 30.26 30.20 20 14 7 12 4 - 0.00  
23 68 54 39 30 22 12 56 30 13 30.49 30.42 30.37 20 20 20 12 1 - 0.00  
24 73 58 42 50 34 18 93 45 13 30.40 30.35 30.29 20 20 20 12 4 - 0.00  
25 75 58 42 50 32 19 63 39 12 30.36 30.28 30.22 20 20 20 12 3 - 0.00  
26 68 55 42 52 37 28 68 46 33 30.27 30.23 30.21 20 20 20 12 5 - 0.00  
27 71 56 42 54 43 32 88 63 29 30.26 30.21 30.17 20 11 7 12 4 - 0.00  
28 73 60 46 54 35 25 60 38 22 30.25 30.18 30.13 20 20 20 12 6 - 0.00  
29 71 60 50 55 50 39 94 67 38 30.12 30.04 30.00 10 9 6 12 3 - 0.00  
30 64 55 46 54 51 41 100 89 68 30.12 30.05 30.01 7 2 0 9 4 - 0.00 Fog
31 68 56 44 54 50 43 94 81 46 30.08 30.04 30.01 7 3 0 13 4 - 0.00 Fog