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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 51 °F 44 °F 34 °F
Mean Temperature 49 °F 40 °F 31 °F
Min Temperature 46 °F 35 °F 26 °F
Degree Days  
Heating Degree Days (base 65) 34 25 16 775
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 49 °F 38 °F 26 °F
Precipitation  
Precipitation 1.18 in 0.35 in 0.00 in 9.68 in
Snowdepth - - - -
Wind  
Wind 30 mph 7 mph 0 mph
Gust Wind 43 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 29.92 in 28.93 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 28, 2012 Rise Set
Actual Time 7:57 AM PST 4:30 PM PST
Civil Twilight 7:21 AM PST 5:05 PM PST
Nautical Twilight 6:42 AM PST 5:44 PM PST
Astronomical Twilight 6:05 AM PST 6:21 PM PST
Moon 5:16 PM PST (12/28) 7:51 AM PST (12/28)
Length of Visible Light 9h 43m
Length of Day
8h 33m
Full, 100% of the Moon is Illuminated
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Daily Weather History & Observations

2012 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 51 49 46 47 44 42 93 82 71 29.63 29.50 29.27 10 9 3 26 13 40 0.43 Rain
2 47 45 43 45 44 41 93 90 86 29.82 29.54 29.20 10 8 3 20 11 26 1.03 Rain
3 50 48 45 48 45 43 100 93 86 30.00 29.90 29.64 10 7 2 16 9 22 0.69 Rain
4 51 48 44 49 46 41 100 93 86 29.90 29.72 29.55 10 8 2 17 9 24 0.57 Rain
5 48 41 34 41 38 34 96 84 71 30.23 30.16 29.95 10 10 8 21 6 29 0.01  
6 45 42 38 43 40 38 100 95 89 30.20 30.14 30.09 10 8 3 15 7 20 0.46 Rain
7 46 43 40 45 39 33 100 83 65 30.19 30.08 30.02 10 9 2 20 9 25 0.32 Rain
8 45 41 37 38 36 35 92 81 70 30.36 30.27 30.19 10 10 8 14 6 18 T Rain
9 45 41 36 45 41 36 100 95 89 30.38 30.34 30.27 10 4 1 14 5 17 0.16 Rain
10 47 43 39 45 42 39 100 95 89 30.43 30.35 30.14 10 4 1 10 3 13 0.03 Rain
11 45 43 40 42 40 37 100 95 89 30.08 29.77 29.55 10 8 4 25 9 37 0.15 Rain
12 44 39 34 40 38 34 100 88 76 30.04 29.86 29.65 10 8 2 12 4 15 0.00 Fog
13 44 41 38 39 38 36 100 88 76 30.06 29.96 29.82 10 6 2 12 5 15 0.16 Fog , Rain
14 44 37 30 38 35 30 100 88 76 29.96 29.89 29.78 10 5 0 14 3 20 0.05 Fog , Rain
15 40 35 30 36 34 30 100 93 85 29.91 29.75 29.54 10 8 1 24 7 34 0.18 Rain
16 46 40 34 43 38 33 100 95 89 29.78 29.44 28.96 10 7 2 28 10 35 1.18 Rain
17 46 39 32 43 35 32 96 86 76 29.92 29.70 28.93 10 6 1 25 12 36 0.66 Rain , Snow
18 36 34 32 33 32 31 100 95 89 30.00 29.94 29.89 10 7 1 15 9 19 0.26 Snow
19 42 39 35 40 36 32 93 86 79 29.96 29.71 29.53 10 8 3 30 17 43 1.18 Rain
20 46 37 27 41 35 27 93 88 83 29.83 29.68 29.49 10 6 0 29 12 37 0.67 Fog , Rain
21 46 36 26 39 32 26 100 88 76 29.81 29.75 29.65 10 4 0 16 4 20 0.07 Fog , Rain
22 46 41 36 40 38 37 100 86 71 29.73 29.59 29.50 10 7 1 28 10 37 0.16 Rain
23 42 39 35 39 37 35 100 88 76 29.84 29.72 29.64 10 8 4 20 6 29 0.26 Rain
24 44 39 33 41 36 33 100 90 79 30.16 30.06 29.86 10 6 0 13 4 16 0.04 Fog , Rain
25 37 35 32 37 35 32 100 98 96 30.03 29.74 29.66 7 3 0 7 2 10 0.62 Fog , Rain , Snow
26 44 40 35 41 38 35 100 95 89 29.94 29.78 29.70 10 6 1 16 8 19 0.16 Rain
27 47 42 36 40 39 36 100 92 83 30.17 30.09 29.95 10 10 4 15 7 19 0.02 Rain
28 44 39 33 39 36 34 100 91 82 30.17 30.14 30.11 10 5 0 6 1 6 T Fog , Rain
29 41 37 33 37 35 33 100 93 85 30.24 30.18 30.15 10 6 0 9 3 12 0.04 Fog , Rain
30 43 36 28 37 35 28 100 88 76 30.32 30.28 30.23 10 3 0 7 1 8 T Fog , Rain
31 34 31 28 34 32 29 100 95 89 30.45 30.35 30.26 10 3 0 8 2 11 0.12 Fog , Snow