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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 68 °F 38 °F 19 °F
Mean Temperature 45 °F 28 °F 16 °F
Min Temperature 35 °F 17 °F 1 °F
Degree Days  
Heating Degree Days (base 65) 50 37 20 1159
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 54 °F 21 °F -4 °F
Precipitation  
Precipitation 1.37 in 0.10 in 0.00 in 3.20 in
Snowdepth - - - -
Wind  
Wind 9 mph 1 mph 0 mph
Gust Wind 29 mph 24 mph 21 mph
Sea Level Pressure  
Sea Level Pressure 30.79 in 30.30 in 29.64 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 30, 2011 Rise Set
Actual Time 7:33 AM PST 4:18 PM PST
Civil Twilight 6:59 AM PST 4:53 PM PST
Nautical Twilight 6:22 AM PST 5:30 PM PST
Astronomical Twilight 5:45 AM PST 6:06 PM PST
Moon 10:35 AM PST (12/30) 11:20 PM PST (12/30)
Length of Visible Light 9h 53m
Length of Day
8h 45m
Waxing Crescent, 36% of the Moon is Illuminated
Dec 30
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 34 21 8 30 18 2 93 83 74 30.79 30.60 30.33 10 8 0 0 0 - 0.00 Fog
2 33 20 7 25 18 1 89 77 61 30.47 30.34 30.24 10 10 8 7 1 - 0.00  
3 33 17 1 25 14 -3 96 81 64 30.53 30.45 30.38 10 10 9 0 0 - 0.00  
4 30 20 8 25 16 2 96 83 75 30.62 30.49 30.38 10 10 7 5 0 - 0.00  
5 34 20 5 21 12 0 100 75 48 30.60 30.53 30.45 10 10 10 0 0 - 0.00  
6 41 26 10 27 15 5 85 75 47 30.46 30.42 30.36 10 10 9 0 0 - 0.00  
7 39 24 10 27 17 6 100 81 55 30.43 30.36 30.23 10 9 5 4 0 - 0.00  
8 37 22 8 27 13 3 92 79 62 30.48 30.42 30.31 10 10 8 0 0 - 0.00  
9 43 25 7 23 13 1 100 68 38 30.53 30.43 30.30 10 10 7 0 0 - 0.00  
10 39 30 21 20 18 16 81 60 46 30.27 30.13 30.01 10 10 6 5 0 - 0.00  
11 28 22 16 25 20 13 93 87 81 30.07 29.99 29.90 10 8 1 4 0 - 0.00 Snow
12 19 16 12 18 15 9 93 88 79 30.19 30.08 29.97 10 6 0 5 1 - 0.01 Fog , Snow
13 27 22 17 23 18 14 89 86 81 30.14 30.08 29.99 10 9 2 0 0 - 0.00  
14 39 28 16 27 20 12 89 74 45 30.25 30.16 30.10 10 10 6 0 0 - 0.00  
15 35 32 28 32 29 22 93 88 72 30.48 30.27 30.07 10 4 1 0 0 - 0.12 Snow
16 41 34 28 35 29 24 93 88 79 30.53 30.48 30.39 10 8 1 0 0 - 0.00  
17 62 45 28 54 26 23 85 71 57 30.49 30.34 30.14 10 10 10 4 0 - 0.00  
18 37 32 28 34 30 21 100 87 66 30.35 30.19 30.10 10 4 0 4 0 - 0.08 Fog , Rain , Snow
19 37 28 19 29 24 15 93 83 60 30.43 30.37 30.28 10 10 7 0 0 - 0.00  
20 42 30 17 34 25 12 92 81 53 30.38 30.21 30.08 10 10 2 8 1 - 0.00 Rain
21 68 38 6 54 19 1 86 77 60 30.58 30.37 30.18 10 10 2 6 1 - 0.00 Snow
22 33 17 1 17 7 -4 81 66 40 30.64 30.57 30.51 10 10 10 0 0 - 0.00  
23 44 32 19 15 12 7 80 60 21 30.60 30.52 30.48 10 9 2 4 0 - 0.00  
24 36 26 17 17 14 12 81 57 43 30.64 30.59 30.45 10 10 4 4 0 - 0.00  
25 37 32 26 30 21 11 93 67 39 30.42 30.28 30.19 10 7 1 6 3 - 0.10 Snow
26 36 27 18 28 23 14 96 83 67 30.38 30.30 30.23 10 10 6 0 0 - 0.00  
27 37 34 30 34 31 26 93 86 78 30.26 30.18 29.99 10 8 1 4 0 - 0.13 Rain , Snow
28 46 40 35 41 39 34 96 88 68 30.08 29.95 29.85 10 5 0 5 1 - 0.73 Fog , Rain
29 44 38 33 39 31 21 93 77 45 30.09 29.94 29.73 10 8 2 9 5 29 0.66 Rain , Snow
30 44 35 26 41 33 21 93 90 80 30.16 29.76 29.64 10 4 0 9 2 25 1.37 Fog , Rain , Snow
31 30 24 18 24 20 13 88 79 72 30.46 30.37 30.15 10 10 10 7 2 - 0.00