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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 48 °F 32 °F 23 °F
Mean Temperature 44 °F 27 °F 18 °F
Min Temperature 41 °F 22 °F 10 °F
Degree Days  
Heating Degree Days (base 65) 47 38 20 1178
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 48 °F 26 °F 10 °F
Precipitation  
Precipitation 0.27 in 0.03 in 0.00 in 0.81 in
Snowdepth - - - -
Wind  
Wind 32 mph 5 mph 0 mph
Gust Wind 44 mph 25 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.77 in 30.30 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 17, 2011 Rise Set
Actual Time 7:33 AM PST 3:59 PM PST
Civil Twilight 6:57 AM PST 4:35 PM PST
Nautical Twilight 6:18 AM PST 5:15 PM PST
Astronomical Twilight 5:40 AM PST 5:52 PM PST
Moon No Moon Rise 11:22 AM PST (12/17)
Length of Visible Light 9h 38m
Length of Day
8h 26m
Waning Gibbous, 52% of the Moon is Illuminated
Dec 17
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Dec 31
First Quarter
Jan 8
Full

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 34 28 22 34 28 22 100 99 86 30.77 30.64 30.17 10 6 0 10 3 - 0.00 Fog , Rain
2 40 30 20 29 19 14 100 72 36 30.41 30.30 30.18 10 10 10 16 7 21 0.00 Snow
3 30 26 21 30 25 16 100 91 69 30.40 30.38 30.35 10 10 10 10 5 - 0.00  
4 37 29 21 29 22 14 100 81 41 30.60 30.51 30.35 10 10 10 10 3 - 0.00 Snow
5 34 28 21 28 23 16 98 78 62 30.56 30.50 30.43 10 10 10 8 4 - 0.00  
6 39 30 21 28 23 21 100 83 49 30.43 30.37 30.31 10 10 7 8 3 - 0.00  
7 37 27 17 29 23 17 100 93 60 30.43 30.38 30.34 10 10 10 6 2 - 0.00 Snow
8 26 20 15 27 22 16 100 100 100 30.50 30.45 30.34 10 2 0 8 2 - 0.00 Fog , Rain , Snow
9 24 22 18 25 23 19 100 100 100 30.54 30.49 30.37 10 1 0 8 4 - 0.00 Fog , Rain , Snow
10 33 24 14 32 20 14 100 100 81 30.35 30.14 30.07 10 6 0 8 5 - 0.00 Fog , Snow
11 23 20 17 24 19 17 100 100 100 30.15 30.09 30.04 10 4 1 5 2 - 0.00 Snow
12 28 24 20 28 24 20 100 100 100 30.25 30.21 30.16 10 6 1 9 3 - 0.00 Snow
13 24 23 22 25 24 22 100 100 93 30.27 30.15 30.12 10 4 0 7 0 - 0.01 Fog , Snow
14 26 24 21 27 24 21 100 100 100 30.27 30.21 30.15 10 10 5 8 4 - 0.00 Snow
15 27 25 24 27 26 24 100 100 100 30.51 30.32 30.17 10 8 1 12 5 - 0.00 Snow
16 32 29 26 32 29 27 100 100 100 30.56 30.51 30.49 4 1 0 8 3 - 0.00 Fog , Rain
17 32 28 23 32 27 23 100 100 100 30.49 30.31 30.06 10 1 0 9 3 - 0.00 Fog , Rain
18 32 28 23 32 27 23 100 100 100 30.41 30.23 30.06 10 5 0 10 4 - 0.00 Fog , Rain
19 29 25 21 29 25 21 100 100 100 30.49 30.44 30.33 10 5 0 6 1 - 0.00 Fog , Rain , Snow
20 27 25 23 27 26 24 100 100 100 30.40 30.21 30.09 10 4 0 12 5 - 0.00 Fog , Rain , Snow
21 32 24 17 32 22 18 100 99 84 30.62 30.46 30.18 10 7 0 7 3 - 0.00 Fog , Snow
22 25 18 12 25 17 12 100 100 100 30.76 30.59 30.49 10 2 0 7 2 - 0.00 Fog , Rain , Snow
23 26 18 10 27 16 10 100 100 99 30.66 30.57 30.50 10 4 0 6 2 - 0.00 Fog , Rain , Snow
24 30 24 19 30 26 19 100 100 100 30.64 30.57 30.48 10 4 0 10 5 - 0.02 Fog , Rain , Snow
25 37 32 26 36 29 25 100 99 61 30.48 30.27 30.06 10 5 0 22 9 28 0.00 Fog , Rain , Snow
26 34 28 23 34 29 23 100 100 99 30.39 30.31 30.23 10 5 0 15 7 - 0.01 Fog , Snow
27 41 35 29 42 36 30 100 100 99 30.22 30.07 29.79 10 10 7 20 10 29 0.20 Rain , Snow
28 48 44 41 48 45 41 100 100 99 29.86 29.74 29.61 10 10 6 32 21 44 0.27 Rain
29 44 38 32 45 37 32 100 99 91 30.00 29.86 29.65 10 9 3 25 16 33 0.15 Rain , Snow
30 42 35 28 43 37 27 100 100 86 29.99 29.69 29.56 10 10 4 21 14 28 0.15 Rain , Snow
31 32 28 24 31 27 25 100 97 81 30.49 30.35 30.01 10 10 10 18 12 25 0.00