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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 77 °F 59 °F 50 °F
Mean Temperature 60 °F 48 °F 40 °F
Min Temperature 55 °F 37 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 26 17 4 522
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 10 1 0 41
Dew Point  
Dew Point 55 °F 39 °F 18 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 25 mph 6 mph 0 mph
Gust Wind 34 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.58 in 30.19 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Dec. 14, 2011 Rise Set
Actual Time 7:14 AM PST 4:51 PM PST
Civil Twilight 6:45 AM PST 5:20 PM PST
Nautical Twilight 6:13 AM PST 5:53 PM PST
Astronomical Twilight 5:41 AM PST 6:24 PM PST
Moon 9:13 PM PST (12/14) 10:06 AM PST (12/14)
Length of Visible Light 10h 34m
Length of Day
9h 36m
Waning Gibbous, 82% of the Moon is Illuminated
Dec 14
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 66 60 55 34 30 23 41 31 23 30.21 30.10 30.05 20 20 20 25 20 34 0.00  
2 77 58 42 50 31 23 67 35 18 30.05 29.99 29.95 20 20 20 10 4 - 0.00  
3 66 56 42 36 24 18 53 31 19 30.24 30.17 30.11 20 20 20 9 5 - 0.00  
4 60 48 35 45 34 27 82 56 29 30.29 30.22 30.14 20 20 20 10 6 - 0.00  
5 60 48 37 36 32 28 81 50 31 30.28 30.24 30.21 20 20 20 17 8 - 0.00  
6 57 44 32 43 36 28 87 65 41 30.42 30.36 30.32 20 20 20 7 5 - 0.00  
7 57 45 33 41 37 30 93 73 48 30.47 30.25 30.16 15 10 6 10 3 - 0.00  
8 57 45 33 45 40 32 93 79 55 30.17 30.14 30.10 8 6 5 8 4 - 0.00  
9 59 46 33 46 40 32 93 74 51 30.23 30.18 30.14 10 8 6 7 5 - 0.00  
10 57 44 32 46 40 30 100 79 54 30.16 30.09 30.03 8 6 3 9 4 - 0.00 Fog
11 53 48 44 45 43 41 87 75 62 29.99 29.92 29.86 20 12 6 9 5 - 0.00  
12 51 48 42 45 43 41 93 80 67 29.84 29.77 29.75 10 9 7 15 7 25 0.00 Rain
13 55 44 32 46 42 32 100 85 67 30.11 30.04 29.99 10 7 4 13 6 - 0.00  
14 69 55 41 46 44 41 100 80 40 30.30 30.27 30.23 10 9 7 9 3 - 0.00  
15 53 48 39 48 44 39 100 87 72 30.25 30.22 30.20 20 13 3 12 8 18 0.00  
16 62 52 41 41 37 36 81 58 37 30.28 30.19 30.13 20 20 20 7 5 - 0.00  
17 60 46 32 41 38 32 100 71 42 30.20 30.13 30.09 20 20 20 6 5 - 0.00  
18 55 44 32 46 42 30 93 80 71 30.22 30.17 30.12 15 13 10 13 6 - 0.00  
19 60 52 42 46 44 41 93 75 52 30.11 30.07 30.03 20 10 6 9 4 - 0.00  
20 62 47 32 41 35 32 100 61 32 30.12 30.06 30.03 20 15 10 8 5 - 0.00  
21 62 47 32 46 36 28 93 65 37 30.13 30.09 30.05 15 12 10 8 3 - 0.00  
22 59 46 33 34 28 21 61 41 30 30.44 30.34 30.27 20 20 20 16 9 23 0.00  
23 53 42 30 39 31 23 80 64 50 30.58 30.53 30.50 20 20 20 9 5 - 0.00  
24 57 42 28 43 33 25 87 67 36 30.48 30.42 30.37 10 9 7 8 5 - 0.00  
25 51 40 28 43 36 27 93 75 58 30.45 30.38 30.33 15 8 5 10 5 - 0.00  
26 50 44 39 45 42 34 100 87 81 30.35 30.32 30.30 7 4 2 9 6 - 0.00 Fog
27 55 48 41 46 43 39 93 84 71 30.38 30.33 30.30 20 10 4 13 6 - 0.00  
28 59 49 39 50 45 37 94 79 63 30.38 30.33 30.29 20 15 10 12 5 - 0.00  
29 60 51 42 54 51 43 100 90 77 30.27 30.20 30.16 20 8 4 14 5 - 0.00  
30 59 55 50 55 53 50 100 92 82 30.23 30.19 30.17 15 10 2 9 5 - 0.00 Fog
31 59 52 44 43 40 36 87 66 42 30.23 30.19 30.15 20 20 20 12 7 - 0.00