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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 71 °F 63 °F 54 °F
Mean Temperature 58 °F 50 °F 44 °F
Min Temperature 48 °F 37 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 21 15 7 461
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 1 0 40
Dew Point  
Dew Point 52 °F 35 °F 13 °F
Precipitation  
Precipitation 0.02 in 0.00 in 0.00 in 0.03 in
Snowdepth - - - -
Wind  
Wind 26 mph 6 mph 0 mph
Gust Wind 33 mph 23 mph 18 mph
Sea Level Pressure  
Sea Level Pressure 30.59 in 30.20 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Dec. 27, 2011 Rise Set
Actual Time 7:17 AM PST 4:57 PM PST
Civil Twilight 6:48 AM PST 5:26 PM PST
Nautical Twilight 6:16 AM PST 5:58 PM PST
Astronomical Twilight 5:44 AM PST 6:30 PM PST
Moon 9:20 AM PST (12/27) 8:31 PM PST (12/27)
Length of Visible Light 10h 37m
Length of Day
9h 40m
Waxing Crescent, 11% of the Moon is Illuminated
Dec 27
Waxing Crescent
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter
Jan 22
New

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 58 47 21 17 13 34 23 11 30.16 30.07 29.98 10 10 9 26 12 33 0.00  
2 69 53 37 46 31 20 86 51 15 30.08 30.02 29.98 10 8 5 15 5 18 0.00  
3 66 51 36 39 26 13 83 48 13 30.31 30.15 30.01 10 8 2 14 4 16 0.00  
4 64 49 33 42 29 15 76 46 16 30.33 30.25 30.16 10 8 6 18 6 21 0.00  
5 63 49 35 43 35 28 92 60 27 30.34 30.23 30.16 9 6 0 16 7 18 0.00  
6 67 51 35 39 30 17 76 46 15 30.43 30.37 30.33 10 9 7 15 6 17 0.00  
7 62 49 35 43 32 26 85 56 27 30.37 30.26 30.18 10 6 4 13 5 15 0.00  
8 62 47 32 44 34 27 89 60 30 30.19 30.16 30.09 7 5 4 15 5 17 0.00  
9 71 53 34 45 33 28 85 54 22 30.23 30.18 30.14 8 6 5 18 7 22 0.00  
10 61 50 39 49 39 29 86 61 35 30.19 30.13 30.07 9 5 2 14 6 17 0.00  
11 54 50 45 45 42 39 86 73 59 30.07 29.96 29.86 8 5 3 15 4 17 T  
12 57 48 39 47 44 37 93 77 61 29.91 29.78 29.70 10 6 4 13 4 15 T  
13 59 47 35 46 41 33 92 72 51 30.17 30.05 29.92 7 5 1 13 3 15 0.00  
14 61 48 35 45 39 33 100 75 49 30.33 30.27 30.18 6 4 0 14 5 15 0.00  
15 55 47 38 46 41 35 92 78 64 30.34 30.24 30.16 9 5 1 13 5 15 0.01 Rain
16 62 48 33 39 36 32 96 69 42 30.29 30.22 30.14 10 8 5 16 4 18 0.00  
17 68 53 38 45 37 34 82 55 27 30.20 30.16 30.07 10 6 2 21 9 24 0.00  
18 60 47 34 45 38 30 85 70 55 30.25 30.18 30.12 9 8 5 14 4 17 0.00  
19 62 52 41 46 41 37 83 65 46 30.14 30.10 30.05 9 7 5 12 3 14 0.00  
20 62 49 36 41 36 32 86 61 36 30.14 30.09 30.04 8 6 4 20 7 23 0.00  
21 66 51 35 38 34 28 85 58 30 30.15 30.10 30.04 10 8 6 14 6 18 0.00  
22 66 48 30 29 25 17 78 49 19 30.50 30.33 30.16 10 10 10 16 5 20 0.00  
23 65 49 33 37 26 18 70 43 16 30.59 30.53 30.50 10 10 10 24 8 28 0.00  
24 68 51 34 39 27 20 76 47 17 30.51 30.43 30.33 10 10 8 23 9 28 0.00  
25 63 48 33 44 29 23 83 54 25 30.45 30.38 30.29 10 9 4 20 6 23 0.00  
26 57 44 31 46 35 26 92 64 35 30.35 30.33 30.30 10 9 6 13 5 15 0.00  
27 62 48 33 45 37 30 100 67 34 30.39 30.34 30.28 10 5 0 15 6 20 0.00 Fog
28 68 52 36 50 43 29 100 69 37 30.39 30.32 30.28 10 6 0 17 7 21 0.00 Fog
29 63 53 42 52 47 39 100 78 55 30.29 30.20 30.12 10 6 0 15 5 18 0.00 Fog
30 62 55 48 52 49 46 100 84 67 30.25 30.20 30.13 10 2 0 10 3 13 0.02 Fog
31 67 56 44 52 47 42 100 74 48 30.23 30.18 30.11 10 5 0 22 11 28 0.00 Fog