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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 59 °F 49 °F 42 °F
Mean Temperature 50 °F 42 °F 36 °F
Min Temperature 50 °F 35 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 29 23 14 712
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 50 °F 37 °F 25 °F
Precipitation  
Precipitation 1.27 in 0.13 in 0.00 in 4.13 in
Snowdepth - - - -
Wind  
Wind 38 mph 8 mph 0 mph
Gust Wind 55 mph 23 mph 9 mph
Sea Level Pressure  
Sea Level Pressure 30.71 in 30.31 in 29.73 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 19, 2011 Rise Set
Actual Time 7:48 AM PST 4:37 PM PST
Civil Twilight 7:15 AM PST 5:11 PM PST
Nautical Twilight 6:38 AM PST 5:48 PM PST
Astronomical Twilight 6:02 AM PST 6:24 PM PST
Moon 1:56 AM PST (12/19) 12:47 PM PST (12/19)
Length of Visible Light 9h 56m
Length of Day
8h 49m
Waning Crescent, 30% of the Moon is Illuminated
Dec 19
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 53 43 33 41 36 32 100 80 50 30.71 30.62 30.50 10 10 4 13 6 - 0.00  
2 50 42 33 43 39 32 100 87 66 30.52 30.49 30.46 10 9 4 17 5 22 0.00 Rain
3 46 39 32 39 35 32 100 87 62 30.54 30.52 30.50 10 10 7 9 4 - 0.00  
4 46 42 37 37 35 34 93 80 66 30.55 30.52 30.49 10 10 10 13 5 - 0.00  
5 50 42 33 39 33 30 100 77 50 30.52 30.46 30.41 10 10 10 13 8 - 0.00  
6 48 40 32 41 34 30 100 87 62 30.47 30.44 30.41 10 10 10 9 5 - 0.00  
7 46 39 32 37 34 32 100 87 71 30.47 30.43 30.38 10 10 10 14 7 - 0.00  
8 48 40 32 37 34 32 100 85 62 30.38 30.33 30.27 10 10 10 9 6 - 0.00  
9 55 44 32 41 33 30 93 73 47 30.26 30.22 30.19 10 9 4 15 5 21 0.00  
10 44 42 41 41 39 37 100 90 81 30.22 30.18 30.15 10 9 5 6 4 - 0.00 Rain
11 46 40 33 39 35 32 100 86 66 30.14 30.12 30.11 10 10 7 17 5 24 0.00 Rain
12 44 36 28 32 29 25 100 78 46 30.18 30.12 30.01 10 10 7 14 6 - 0.00  
13 46 39 32 34 29 27 93 71 53 30.11 30.02 29.99 10 10 10 15 9 18 0.00  
14 46 39 32 41 36 30 100 86 71 30.21 30.14 30.06 10 10 7 22 9 29 0.07 Rain
15 48 45 42 46 44 41 100 94 87 30.51 30.33 30.10 10 6 1 10 5 16 0.06 Rain
16 53 45 37 45 41 37 100 89 72 30.52 30.46 30.36 10 9 1 9 5 - 0.00  
17 59 49 39 45 40 37 100 77 59 30.34 30.21 30.11 10 8 1 13 7 - 0.00  
18 48 44 39 45 41 36 100 88 71 30.44 30.31 30.19 10 6 1 15 3 20 0.02 Rain
19 46 40 33 41 37 34 100 90 76 30.49 30.46 30.40 10 8 4 9 5 - 0.00  
20 44 38 32 45 37 32 100 94 81 30.45 30.40 30.36 10 7 2 7 3 - 0.00  
21 46 39 32 37 34 32 100 87 61 30.50 30.45 30.42 10 8 1 15 7 20 0.00  
22 50 42 35 32 30 27 87 66 47 30.43 30.37 30.32 10 10 10 23 14 28 0.00  
23 51 42 33 43 38 32 93 79 58 30.60 30.56 30.47 10 8 2 9 5 - 0.00 Rain
24 57 46 35 41 37 34 93 74 44 30.57 30.45 30.29 10 9 2 9 3 - 0.00  
25 50 44 39 45 41 34 100 81 62 30.45 30.30 30.17 10 6 2 31 13 40 0.11 Rain
26 44 38 33 41 38 32 100 93 81 30.42 30.33 30.27 10 9 4 12 5 17 0.02 Rain
27 51 48 44 50 46 41 100 91 76 30.29 30.15 29.99 10 5 2 38 21 55 0.66 Rain
28 51 50 50 50 50 50 100 100 94 30.09 30.02 29.91 4 2 1 37 28 52 1.27 Rain
29 51 48 46 50 48 46 100 96 87 30.17 29.93 29.74 10 4 1 31 11 43 0.95 Rain
30 50 42 33 50 41 32 100 87 71 30.37 30.03 29.73 7 5 2 18 11 29 0.97 Rain
31 42 38 33 36 34 32 100 83 66 30.40 30.30 30.19 10 10 7 20 9 28 0.00 Rain