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Month of December, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 45 °F 32 °F
Mean Temperature 52 °F 40 °F 25 °F
Min Temperature 48 °F 35 °F 18 °F
Degree Days  
Heating Degree Days (base 65) 40 25 14 781
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 50 °F 33 °F -2 °F
Precipitation  
Precipitation 0.22 in 0.03 in 0.00 in 1.05 in
Snowdepth - - - -
Wind  
Wind 20 mph 4 mph 0 mph
Gust Wind 36 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.63 in 30.28 in 29.73 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 28, 2013 Rise Set
Actual Time 7:56 AM PST 4:25 PM PST
Civil Twilight 7:20 AM PST 5:01 PM PST
Nautical Twilight 6:41 AM PST 5:40 PM PST
Astronomical Twilight 6:04 AM PST 6:17 PM PST
Moon 3:30 AM PST 1:28 PM PST
Length of Visible Light 9h 40m
Length of Day
8h 28m
Waning Crescent, 18% of the Moon is Illuminated
Dec 28
Waning Crescent
Jan 1
New
Jan 7
First Quarter
Jan 15
Full
Jan 23
Last Quarter

Daily Weather History & Observations

2013 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 55 52 46 50 46 36 88 76 63 30.06 29.88 29.76 10 9 3 20 13 36 0.03 Rain
2 46 42 37 34 32 29 86 69 56 30.07 29.92 29.83 10 10 5 9 5 - 0.11 Rain
3 41 36 32 28 23 20 79 57 43 30.32 30.24 30.09 10 10 10 12 7 22 0.01  
4 39 32 26 26 23 21 82 70 47 30.37 30.33 30.31 10 10 10 5 2 - 0.00  
5 35 30 24 22 18 12 81 63 44 30.33 30.26 30.20 10 10 10 9 3 - 0.00  
6 35 31 27 14 8 6 54 39 31 30.24 30.19 30.15 10 10 10 8 3 - 0.00  
7 32 25 18 9 5 -2 62 43 23 30.44 30.36 30.24 10 10 10 6 2 - 0.00  
8 34 26 18 16 13 8 69 58 44 30.59 30.52 30.45 10 10 10 8 5 - 0.00  
9 34 28 21 24 18 12 71 61 50 30.60 30.55 30.51 10 10 7 8 4 - 0.00 Snow
10 41 37 32 32 29 24 85 72 65 30.51 30.47 30.43 10 10 9 8 4 - 0.00  
11 42 35 28 34 30 25 93 83 65 30.42 30.31 30.18 10 6 0 6 2 - 0.00 Fog
12 43 38 32 39 35 29 96 89 70 30.18 30.12 30.06 10 4 0 13 6 - 0.22 Fog , Rain
13 50 46 42 46 43 39 93 86 80 30.43 30.33 30.15 10 7 2 9 6 - 0.01  
14 50 47 44 43 42 40 93 82 74 30.45 30.38 30.36 10 10 10 13 7 - 0.00  
15 53 50 48 47 45 42 89 83 76 30.46 30.38 30.33 10 9 4 14 9 - 0.03 Rain
16 50 46 42 44 42 39 93 85 74 30.50 30.41 30.28 10 8 0 6 2 - 0.00 Fog
17 48 44 39 43 39 37 97 86 73 30.28 30.19 30.12 10 5 1 12 5 - 0.00  
18 46 42 39 41 36 29 87 74 53 30.17 30.10 30.04 10 10 6 9 4 - 0.04 Rain
19 41 36 32 33 27 18 85 68 40 30.36 30.28 30.20 10 10 10 9 3 - 0.00  
20 45 39 33 42 33 25 93 85 70 30.20 29.95 29.73 10 4 1 15 8 28 0.10 Rain , Snow
21 48 45 42 44 41 37 93 87 81 30.17 30.06 29.87 10 6 2 6 2 - 0.22 Rain
22 52 49 46 48 46 44 93 88 80 30.30 30.25 30.17 10 4 2 12 7 20 0.21 Rain
23 55 50 44 47 43 37 86 76 57 30.51 30.27 30.15 10 9 3 17 11 31 0.01 Rain
24 48 42 36 39 36 33 89 80 68 30.63 30.58 30.53 10 10 8 6 2 - 0.00  
25 44 39 34 36 34 31 97 87 68 30.54 30.47 30.41 10 5 0 4 0 - 0.00 Fog
26 45 39 33 37 35 32 96 88 74 30.40 30.33 30.22 9 3 0 6 1 - 0.00 Fog
27 48 40 33 43 36 30 96 89 71 30.38 30.23 30.14 10 4 0 14 2 23 0.03 Fog , Rain
28 48 42 35 43 40 34 93 87 77 30.53 30.48 30.39 10 6 0 5 1 - 0.00 Fog
29 46 42 37 38 37 35 93 87 73 30.49 30.41 30.32 10 4 0 7 3 - 0.00 Fog
30 46 42 39 41 39 37 93 84 74 30.32 30.20 30.14 10 6 2 9 3 23 0.02 Rain
31 48 44 39 43 41 37 93 83 74 30.39 30.29 30.20 10 7 0 10 4 - 0.01 Fog