Weather History for Petaluma, CA

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Week of November 25, 2012 through December 1, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 64 °F 61 °F 59 °F
Mean Temperature 58 °F 55 °F 52 °F
Min Temperature 57 °F 50 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 14 9 6 66
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 5 2 38
Dew Point  
Dew Point 61 °F 52 °F 39 °F
Precipitation  
Precipitation 0.69 in 0.17 in 0.00 in 1.20 in
Snowdepth - - - -
Wind  
Wind 17 mph 4 mph 0 mph
Gust Wind 26 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.13 in 30.00 in 29.84 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 01, 2012 Rise Set
Actual Time 7:08 AM PST 4:50 PM PST
Civil Twilight 6:39 AM PST 5:19 PM PST
Nautical Twilight 6:06 AM PST 5:52 PM PST
Astronomical Twilight 5:35 AM PST 6:24 PM PST
Moon 7:44 PM PST (12/1) 9:25 AM PST (12/1)
Length of Visible Light 10h 39m
Length of Day
9h 41m
Waning Gibbous, 91% of the Moon is Illuminated
Dec 1
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 19
First Quarter
Dec 28
Full

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Nov high avg low high avg low high avg low high avg low high avg low high avg high sum  
25 64 52 41 54 47 41 100 93 59 30.05 30.00 29.94 10 5 0 5 1 - 0.00  
26 64 52 39 54 47 39 100 93 56 30.09 30.04 29.99 10 3 0 8 1 - 0.00  
27 59 54 50 52 50 48 100 85 67 30.13 30.07 30.00 10 6 1 10 3 17 0.00  
28 62 58 53 57 52 48 100 87 68 30.05 29.94 29.84 10 7 1 14 8 26 0.69  
29 59 56 53 54 52 50 100 86 77 30.05 30.03 30.01 10 9 2 17 7 23 0.01  
30 59 58 57 57 57 55 100 98 88 30.01 29.97 29.90 10 8 2 8 4 - 0.17  
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 62 58 55 61 57 54 100 95 77 30.04 29.97 29.87 10 6 1 13 6 25 0.33