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Month of December, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 72 °F 58 °F 50 °F
Mean Temperature 65 °F 48 °F 41 °F
Min Temperature 57 °F 38 °F 29 °F
Degree Days  
Heating Degree Days (base 65) 24 17 0 512
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 14 1 0 45
Dew Point  
Dew Point 54 °F 36 °F 7 °F
Precipitation  
Precipitation 0.07 in 0.00 in 0.00 in 0.11 in
Snowdepth - - - -
Wind  
Wind 30 mph 4 mph 0 mph
Gust Wind 44 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.60 in 30.21 in 29.76 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 31, 2011 Rise Set
Actual Time 7:24 AM PST 4:59 PM PST
Civil Twilight 6:54 AM PST 5:29 PM PST
Nautical Twilight 6:21 AM PST 6:02 PM PST
Astronomical Twilight 5:50 AM PST 6:33 PM PST
Moon 11:20 AM PST No Moon Set
Length of Visible Light 10h 34m
Length of Day
9h 35m
Waxing Crescent, 46% of the Moon is Illuminated
Dec 31
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 70 63 55 28 19 11 35 23 10 30.25 30.15 30.05 10 10 10 30 11 32 0.00  
2 72 65 57 45 26 12 57 36 14 30.06 30.01 29.96 10 10 10 28 7 37 0.00  
3 66 58 50 44 13 7 38 25 11 30.28 30.16 30.05 10 10 10 29 11 37 0.00  
4 63 54 45 46 38 21 83 53 23 30.30 30.23 30.15 10 10 8 9 4 17 0.00  
5 59 53 46 39 25 16 76 48 19 30.33 30.24 30.18 10 10 10 23 9 31 0.00  
6 63 53 43 37 33 27 62 48 34 30.43 30.37 30.33 10 10 9 8 4 28 0.00  
7 56 48 39 42 35 29 85 66 47 30.36 30.26 30.18 10 9 6 9 3 12 0.00  
8 54 44 33 42 36 32 92 71 50 30.19 30.16 30.12 10 8 5 8 2 16 0.00 Fog
9 55 44 32 44 36 30 89 74 59 30.25 30.19 30.16 10 8 5 6 2 8 0.00  
10 58 46 33 45 38 31 93 70 47 30.18 30.11 30.05 10 7 2 13 3 28 0.00 Fog
11 54 47 40 46 43 38 100 82 63 30.06 29.95 29.85 10 7 3 13 5 36 0.02 Rain
12 55 47 38 48 43 39 100 83 66 29.91 29.81 29.76 10 10 8 20 6 23 0.01 Rain
13 57 46 34 50 43 36 100 83 66 30.16 30.04 29.91 10 8 5 15 4 18 0.00  
14 54 46 37 49 44 39 100 89 77 30.32 30.26 30.18 10 9 6 9 4 44 0.00 Fog
15 56 48 39 49 45 40 100 83 66 30.31 30.24 30.20 10 9 3 21 6 - 0.07 Rain
16 63 49 35 48 40 34 100 76 51 30.28 30.21 30.15 10 10 8 10 3 13 0.00 Fog
17 56 46 35 44 38 34 92 74 55 30.21 30.15 30.10 10 9 6 7 2 - 0.00  
18 52 43 33 45 42 33 100 86 71 30.23 30.17 30.13 10 10 9 13 3 14 0.00  
19 55 45 35 45 42 36 100 76 51 30.13 30.09 30.04 10 9 3 10 3 18 0.00  
20 61 48 35 41 36 28 100 66 32 30.13 30.08 30.05 10 10 9 18 4 24 0.00  
21 61 47 32 44 36 29 92 72 51 30.18 30.11 30.06 10 10 9 15 3 20 0.00  
22 62 47 31 30 16 9 82 48 14 30.49 30.34 30.19 10 10 10 26 8 32 0.00  
23 56 43 30 37 26 20 75 51 26 30.60 30.53 30.50 10 10 10 8 3 9 0.00  
24 55 42 29 42 30 23 80 63 46 30.51 30.45 30.38 10 9 8 10 3 13 0.00  
25 54 42 30 41 34 27 92 71 50 30.46 30.39 30.33 9 6 4 10 2 32 0.00  
26 50 41 32 45 39 30 100 90 80 30.39 30.34 30.31 10 4 0 8 2 10 0.00 Fog
27 56 48 39 43 41 38 100 76 51 30.38 30.35 30.31 10 9 4 12 4 14 0.00 Fog
28 57 48 38 50 43 37 100 83 66 30.40 30.34 30.30 10 9 2 9 3 41 0.00  
29 56 49 42 52 48 42 100 93 86 30.30 30.23 30.15 10 5 0 10 3 25 0.00 Fog
30 56 53 49 54 52 49 100 93 86 30.25 30.20 30.16 10 5 0 12 2 9 0.01 Fog
31 61 50 38 48 40 29 100 65 29 30.25 30.21 30.16 10 7 0 15 8 32 0.00 Fog