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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 46 °F 41 °F 37 °F
Mean Temperature 43 °F 37 °F 34 °F
Min Temperature 40 °F 34 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 32 27 22 852
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 43 °F 35 °F 27 °F
Precipitation  
Precipitation 0.71 in 0.18 in 0.00 in 5.44 in
Snowdepth - - - -
Wind  
Wind 29 mph 7 mph 0 mph
Gust Wind 43 mph 21 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 29.78 in 29.07 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 09, 2012 Rise Set
Actual Time 8:19 AM PST 4:24 PM PST
Civil Twilight 7:40 AM PST 5:03 PM PST
Nautical Twilight 6:58 AM PST 5:45 PM PST
Astronomical Twilight 6:18 AM PST 6:25 PM PST
Moon 3:40 AM PST (12/9) 1:52 PM PST (12/9)
Length of Visible Light 9h 22m
Length of Day
8h 04m
Waning Crescent, 17% of the Moon is Illuminated
Dec 9
Waning Crescent
Dec 13
New
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter

Daily Weather History & Observations

2012 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 46 43 40 43 41 37 93 90 85 29.26 29.21 29.15 20 12 5 16 6 24 0.63 Rain
2 45 40 36 43 38 35 100 91 84 29.48 29.27 29.12 20 14 7 7 3 - 0.35 Rain
3 44 40 37 41 38 36 100 86 74 29.76 29.61 29.32 20 16 15 21 7 29 0.20 Rain
4 43 39 35 41 37 34 93 88 77 29.61 29.40 29.12 20 15 7 13 8 22 0.71 Rain
5 40 36 33 37 35 32 93 92 87 30.06 29.95 29.65 20 16 10 7 4 - 0.28 Rain
6 44 38 33 39 36 32 93 91 81 30.04 29.99 29.92 20 17 12 6 2 - 0.12 Rain
7 40 36 33 36 33 30 93 88 81 30.13 30.02 29.93 20 14 8 14 7 17 0.20 Rain , Snow
8 40 36 33 34 33 30 87 83 72 30.26 30.23 30.15 20 17 14 13 5 18 0.00  
9 39 38 36 37 36 34 93 88 44 30.40 30.29 30.18 20 12 4 17 10 25 0.16 Rain
10 46 40 34 43 39 34 100 91 83 30.41 30.24 29.91 20 17 12 12 3 17 0.08 Rain
11 42 38 32 41 38 32 100 92 87 29.88 29.65 29.59 20 14 7 14 6 - 0.47 Rain
12 42 36 31 39 37 32 93 88 78 29.99 29.87 29.70 20 17 15 12 4 - 0.02 Rain
13 41 39 37 37 37 34 93 91 85 29.98 29.85 29.75 15 11 5 13 7 20 0.24 Rain
14 41 36 30 36 33 28 93 86 69 29.92 29.84 29.62 20 17 15 17 5 25 25.98 Rain
15 40 36 33 36 35 32 93 88 81 29.60 29.46 29.40 15 13 8 23 13 34 0.35 Rain , Snow
16 41 37 33 34 32 30 93 83 65 29.59 29.36 29.07 20 15 10 29 9 34 0.16 Rain , Snow
17 40 36 32 36 32 30 93 86 78 29.76 29.44 29.09 15 13 6 13 7 - 0.16 Rain , Snow
18 37 34 30 32 30 28 93 85 65 29.85 29.75 29.54 20 15 3 21 4 29 0.03 Rain , Snow
19 37 34 32 34 33 32 93 91 85 29.51 29.36 29.25 20 11 3 28 14 43 0.43 Rain , Snow
20 38 36 33 36 33 32 93 90 85 29.67 29.51 29.41 20 15 2 14 4 17 0.08 Rain , Snow
21 41 38 34 36 35 34 93 85 77 29.67 29.63 29.59 20 16 8 23 12 29 0.35 Rain
22 40 38 37 36 34 32 87 80 72 29.63 29.49 29.42 20 16 15 17 12 21 0.00 Rain
23 39 36 33 37 35 32 93 88 80 29.83 29.65 29.52 20 17 15 15 7 17 0.12 Rain
24 39 36 32 36 34 32 93 86 74 30.06 29.98 29.86 20 14 5 22 7 31 0.02 Rain
25 41 39 37 34 33 30 87 77 61 29.87 29.65 29.56 20 16 15 29 19 39 0.04 Rain
26 42 37 32 39 35 30 93 88 75 29.96 29.80 29.65 20 15 12 12 6 17 0.04 Rain
27 40 34 28 36 32 27 93 88 79 30.05 30.02 29.98 20 17 15 16 5 23 0.04 Rain
28 41 38 34 38 37 36 87 84 76 30.15 30.07 30.01 20 15 12 16 12 24 0.04 Rain
29 42 40 38 39 37 35 100 88 73 30.22 30.20 30.16 15 14 10 7 3 - 0.04 Rain
30 41 38 34 36 34 32 93 83 71 30.26 30.20 30.15 20 17 15 17 7 23 0.00 Rain
31 41 39 37 39 37 36 93 89 81 30.45 30.34 30.19 20 16 15 14 7 18 0.08 Rain