Weather History for Santa Rosa, CA

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Week of December 9, 2012 through December 15, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 69 °F 57 °F 46 °F
Mean Temperature 54 °F 46 °F 38 °F
Min Temperature 38 °F 34 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 27 19 11 134
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 1 0 4
Dew Point  
Dew Point 51 °F 39 °F 28 °F
Precipitation  
Precipitation 0.12 in 0.03 in 0.00 in 0.20 in
Snowdepth - - - -
Wind  
Wind 14 mph 3 mph 0 mph
Gust Wind 18 mph - -
Sea Level Pressure  
Sea Level Pressure 30.22 in 29.98 in 29.80 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 15, 2012 Rise Set
Actual Time 7:21 AM PST 4:51 PM PST
Civil Twilight 6:52 AM PST 5:21 PM PST
Nautical Twilight 6:18 AM PST 5:54 PM PST
Astronomical Twilight 5:46 AM PST 6:26 PM PST
Moon 9:20 AM PST (12/15) 8:00 PM PST (12/15)
Length of Visible Light 10h 29m
Length of Day
9h 29m
Waxing Crescent, 9% of the Moon is Illuminated
Dec 15
Waxing Crescent
Dec 19
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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  
9 69 54 38 47 42 37 100 71 42 30.17 30.12 30.08 10 9 7 14 5 15 0.00  
10 68 53 37 51 43 37 100 76 52 30.22 30.16 30.09 10 3 0 6 1 7 0.01 Fog
11 55 46 36 48 43 36 100 87 74 30.09 29.93 29.82 10 4 0 10 3 13 0.04 Fog , Rain
12 54 44 34 46 40 33 100 80 59 29.90 29.83 29.80 10 4 0 8 2 9 0.00 Fog
13 55 43 31 37 33 30 100 73 45 29.92 29.88 29.84 10 7 1 9 4 12 0.00  
14 54 43 32 41 35 31 100 77 54 30.04 29.92 29.81 10 5 0 12 2 15 0.03 Fog , Rain
15 46 38 30 42 36 28 100 92 83 30.07 30.02 29.97 10 4 0 12 3 18 0.12 Fog , Rain