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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 60 °F 50 °F
Mean Temperature 55 °F 45 °F 40 °F
Min Temperature 50 °F 30 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 25 20 10 616
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 5 0 0 9
Dew Point  
Dew Point 55 °F 34 °F 18 °F
Precipitation  
Precipitation 0.22 in 0.01 in 0.00 in 0.44 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 10 mph 1 mph 0 mph
Gust Wind - - -
Sea Level Pressure  
Sea Level Pressure 30.61 in 30.21 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 22, 2011 Rise Set
Actual Time 7:28 AM PST 4:53 PM PST
Civil Twilight 6:58 AM PST 5:24 PM PST
Nautical Twilight 6:25 AM PST 5:57 PM PST
Astronomical Twilight 5:52 AM PST 6:30 PM PST
Moon 5:18 AM PST (12/22) 3:09 PM PST (12/22)
Length of Visible Light 10h 25m
Length of Day
9h 24m
Waning Crescent, 5% of the Moon is Illuminated
Dec 22
Waning Crescent
Dec 24
New
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last 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 70 50 29 35 31 27 100 62 24 30.33 30.23 30.13 10 10 10 10 2 - 0.00  
2 73 53 33 38 32 27 85 54 22 30.13 30.07 29.99 10 10 7 6 1 - 0.00  
3 65 47 29 33 28 18 92 54 16 30.29 30.20 30.13 10 10 9 6 1 - 0.00  
4 62 45 27 36 30 26 100 64 27 30.30 30.24 30.15 10 10 8 6 1 - 0.00  
5 62 44 26 33 28 22 92 57 22 30.33 30.25 30.19 10 10 6 6 1 - 0.00  
6 59 43 27 34 29 25 92 61 30 30.43 30.37 30.32 10 10 7 0 0 - 0.00  
7 59 44 28 36 31 27 92 63 33 30.36 30.25 30.16 10 10 8 5 0 - 0.00  
8 62 46 30 39 34 30 100 70 39 30.19 30.15 30.09 10 10 8 4 0 - 0.00  
9 62 45 28 39 33 27 96 68 39 30.25 30.19 30.14 10 9 6 5 1 - 0.00  
10 59 44 28 38 33 27 96 67 37 30.19 30.11 30.03 10 10 8 4 0 - 0.00  
11 50 40 30 39 34 28 100 81 61 30.02 29.91 29.83 10 9 4 4 0 - 0.00  
12 56 44 32 39 36 31 100 74 47 29.91 29.81 29.75 10 9 3 8 1 - 0.00  
13 57 42 26 41 32 25 100 74 47 30.17 30.03 29.92 10 8 1 5 1 - 0.01  
14 53 41 29 43 35 27 100 80 59 30.33 30.23 30.18 10 9 3 6 2 - 0.07 Rain
15 56 45 33 44 41 33 100 80 59 30.30 30.24 30.19 10 8 2 5 2 - 0.22 Rain
16 61 46 30 40 33 29 100 68 36 30.32 30.25 30.15 10 4 0 4 1 - T Fog
17 67 48 29 40 34 28 100 63 26 30.22 30.14 30.08 10 9 2 4 0 - 0.00  
18 59 44 28 39 33 27 96 67 37 30.22 30.14 30.10 10 10 7 4 0 - 0.00  
19 60 46 31 43 35 30 100 74 47 30.17 30.12 30.03 10 5 0 5 1 - 0.00 Fog
20 64 45 26 35 31 26 96 62 27 30.13 30.08 30.01 10 9 6 5 1 - 0.00  
21 63 45 27 38 32 26 92 63 34 30.21 30.12 30.06 10 9 5 6 1 - 0.00  
22 57 40 23 28 25 21 96 61 26 30.51 30.36 30.23 10 10 7 5 1 - 0.00  
23 59 42 24 29 25 22 92 58 24 30.61 30.54 30.50 10 9 4 5 1 - 0.00  
24 62 44 25 36 29 23 92 61 29 30.51 30.45 30.37 10 10 7 4 0 - 0.00  
25 59 43 27 34 30 26 92 62 31 30.47 30.39 30.33 10 10 6 5 0 - 0.00  
26 58 43 27 41 32 27 100 74 47 30.38 30.32 30.27 10 7 0 6 1 - 0.00 Fog
27 58 46 34 40 38 37 100 74 47 30.40 30.36 30.30 10 10 9 5 1 - 0.00  
28 61 50 39 52 45 37 93 75 57 30.40 30.33 30.29 10 10 10 5 1 - 0.00  
29 60 55 50 55 53 50 100 90 80 30.28 30.20 30.12 10 7 0 4 0 - 0.00 Fog
30 57 46 34 54 49 35 100 82 63 30.27 30.16 30.11 10 6 1 10 3 - 0.13 Rain
31 58 44 30 42 34 30 100 74 47 30.29 30.25 30.17 10 6 0 4 1 - 0.01 Fog