Weather History for Petaluma, CA

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Monday, December 2, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 48 °F 47 °F  
Max Temperature 64 °F 58 °F 75 °F (2011)
Min Temperature 32 °F 37 °F 24 °F (2004)
Degree Days  
Heating Degree Days 17    
Month to date heating degree days  
Since 1 July heating degree days  
Cooling Degree Days 0    
Month to date cooling degree days  
Year to date cooling degree days  
Moisture  
Dew Point 46 °F    
Average Humidity 91    
Maximum Humidity 100    
Minimum Humidity 59    
Precipitation  
Precipitation 0.00 in - 1.77 in (1970)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.12 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 20 mph    
Max Gust Speed 25 mph    
Visibility 7 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 02, 2013 Rise Set
Actual Time 7:09 AM PST 4:50 PM PST
Civil Twilight 6:40 AM PST 5:19 PM PST
Nautical Twilight 6:07 AM PST 5:52 PM PST
Astronomical Twilight 5:35 AM PST 6:24 PM PST
Moon 6:41 AM PST (12/2) 4:58 PM PST (12/2)
Length of Visible Light 10h 39m
Length of Day
9h 40m
Waning Crescent, 0% of the Moon is Illuminated
Dec 2
Waning Crescent
Dec 2
New
Dec 9
First Quarter
Dec 17
Full
Dec 25
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 41.0 °F - 41.0 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 41.0 °F - 41.0 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 39.2 °F 35.0 °F 39.2 °F 100% 30.24 in 10.0 mi North 5.8 mph - N/A   Clear
1:15 AM 41.0 °F - 41.0 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 39.2 °F 35.9 °F 39.2 °F 100% 30.23 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
1:55 AM 39.2 °F - 39.2 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 39.2 °F - 39.2 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:35 AM 39.2 °F - 39.2 °F 100% 30.22 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 37.4 °F - 37.4 °F 100% 30.22 in 8.0 mi Calm Calm - N/A   Clear
3:15 AM 37.4 °F - 37.4 °F 100% 30.21 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:35 AM 35.6 °F - 35.6 °F 100% 30.20 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
3:55 AM 37.4 °F - 37.4 °F 100% 30.20 in 1.5 mi Calm Calm - N/A   Scattered Clouds
4:15 AM 35.6 °F - 35.6 °F 100% 30.19 in 4.0 mi Calm Calm - N/A   Partly Cloudy
4:35 AM 35.6 °F - 35.6 °F 100% 30.19 in 2.5 mi Calm Calm - N/A   Partly Cloudy
4:55 AM 33.8 °F - 33.8 °F 100% 30.18 in 0.5 mi Calm Calm - N/A   Mostly Cloudy
5:15 AM 35.6 °F - 35.6 °F 100% 30.17 in 0.5 mi Calm Calm - N/A   Unknown
5:35 AM 33.8 °F - 33.8 °F 100% 30.17 in 2.0 mi Calm Calm - N/A   Scattered Clouds
5:55 AM 32.0 °F - 32.0 °F 100% 30.17 in 2.5 mi Calm Calm - N/A   Mostly Cloudy
6:15 AM 33.8 °F - 33.8 °F 100% 30.18 in 0.5 mi Calm Calm - N/A   Overcast
6:35 AM 35.6 °F 31.7 °F 35.6 °F 100% 30.19 in 0.2 mi NW 4.6 mph - N/A   Overcast
6:55 AM 37.4 °F 34.9 °F 37.4 °F 100% 30.20 in 0.2 mi NNW 3.5 mph - N/A   Overcast
7:15 AM 37.4 °F - 37.4 °F 100% 30.19 in 0.2 mi Calm Calm - N/A   Overcast
7:35 AM 35.6 °F - 35.6 °F 100% 30.18 in 0.2 mi Calm Calm - N/A   Overcast
7:55 AM 37.4 °F - 37.4 °F 100% 30.20 in 0.2 mi Calm Calm - N/A   Overcast
8:15 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.19 in 0.2 mi WSW 3.5 mph - N/A   Overcast
8:35 AM 42.8 °F 41.1 °F 42.8 °F 100% 30.20 in 0.2 mi NW 3.5 mph - N/A   Overcast
8:55 AM 44.6 °F 41.4 °F 44.6 °F 100% 30.19 in 0.2 mi NW 5.8 mph - N/A   Overcast
9:15 AM 46.4 °F 45.2 °F 46.4 °F 100% 30.19 in 0.2 mi NNW 3.5 mph - N/A   Overcast
9:35 AM 46.4 °F 45.2 °F 46.4 °F 100% 30.18 in 0.2 mi NW 3.5 mph - N/A   Overcast
9:55 AM 46.4 °F 44.3 °F 46.4 °F 100% 30.18 in 0.2 mi NW 4.6 mph - N/A   Overcast
10:15 AM 48.2 °F - 48.2 °F 100% 30.18 in 0.2 mi WNW 4.6 mph - N/A   Overcast
10:35 AM 48.2 °F - 48.2 °F 100% 30.18 in 7.0 mi WNW 6.9 mph - N/A   Overcast
10:55 AM 50.0 °F - 50.0 °F 100% 30.17 in 10.0 mi West 10.4 mph - N/A   Scattered Clouds
11:15 AM 55.4 °F - 50.0 °F 82% 30.15 in 10.0 mi West 10.4 mph - N/A   Clear
11:35 AM 57.2 °F - 46.4 °F 67% 30.14 in 10.0 mi West 9.2 mph - N/A   Clear
11:55 AM 59.0 °F - 48.2 °F 67% 30.12 in 10.0 mi NW 4.6 mph - N/A   Clear
12:15 PM 60.8 °F - 48.2 °F 63% 30.11 in 10.0 mi West 6.9 mph - N/A   Clear
12:35 PM 62.6 °F - 48.2 °F 59% 30.10 in 10.0 mi NW 8.1 mph - N/A   Clear
12:55 PM 62.6 °F - 48.2 °F 59% 30.09 in 10.0 mi NW 10.4 mph - N/A   Clear
1:15 PM 64.4 °F - 50.0 °F 59% 30.07 in 10.0 mi West 13.8 mph - N/A   Clear
1:35 PM 62.6 °F - 48.2 °F 59% 30.06 in 10.0 mi West 15.0 mph 21.9 mph N/A   Clear
1:55 PM 62.6 °F - 48.2 °F 59% 30.05 in 10.0 mi West 18.4 mph 21.9 mph N/A   Clear
2:15 PM 62.6 °F - 48.2 °F 59% 30.04 in 10.0 mi West 19.6 mph - N/A   Clear
2:35 PM 62.6 °F - 48.2 °F 59% 30.04 in 10.0 mi West 18.4 mph 25.3 mph N/A   Clear
2:55 PM 62.6 °F - 50.0 °F 63% 30.04 in 10.0 mi West 17.3 mph - N/A   Clear
3:15 PM 62.6 °F - 50.0 °F 63% 30.03 in 10.0 mi WSW 11.5 mph 23.0 mph N/A   Clear
3:35 PM 60.8 °F - 50.0 °F 68% 30.03 in 10.0 mi WSW 12.7 mph 19.6 mph N/A   Clear
3:55 PM 59.0 °F - 50.0 °F 72% 30.03 in 10.0 mi WSW 12.7 mph 17.3 mph N/A   Clear
4:15 PM 59.0 °F - 50.0 °F 72% 30.03 in 10.0 mi West 12.7 mph - N/A   Clear
4:35 PM 57.2 °F - 50.0 °F 77% 30.03 in 10.0 mi WSW 10.4 mph - N/A   Clear
4:55 PM 57.2 °F - 50.0 °F 77% 30.03 in 10.0 mi WSW 8.1 mph - N/A   Clear
5:15 PM 55.4 °F - 50.0 °F 82% 30.03 in 10.0 mi West 8.1 mph - N/A   Clear
5:35 PM 55.4 °F - 50.0 °F 82% 30.04 in 10.0 mi West 8.1 mph - N/A   Clear
5:55 PM 53.6 °F - 51.8 °F 94% 30.04 in 10.0 mi WNW 9.2 mph - N/A   Clear
6:15 PM 53.6 °F - 51.8 °F 94% 30.03 in 10.0 mi WNW 10.4 mph - N/A   Clear
6:35 PM 53.6 °F - 53.6 °F 100% 30.04 in 10.0 mi WNW 11.5 mph 17.3 mph N/A   Clear
6:55 PM 51.8 °F - 51.8 °F 100% 30.04 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
7:15 PM 51.8 °F - 51.8 °F 100% 30.04 in 10.0 mi WNW 8.1 mph - N/A   Overcast
7:35 PM 53.6 °F - 53.6 °F 100% 30.04 in 10.0 mi WNW 9.2 mph - N/A   Overcast
7:55 PM 53.6 °F - 53.6 °F 100% 30.05 in 10.0 mi WNW 6.9 mph - N/A   Overcast
8:15 PM 53.6 °F - 53.6 °F 100% 30.05 in 10.0 mi NW 3.5 mph - N/A   Overcast
8:35 PM 53.6 °F - 53.6 °F 100% 30.04 in 10.0 mi NW 5.8 mph - N/A   Overcast
8:55 PM 53.6 °F - 53.6 °F 100% 30.03 in 10.0 mi WNW 5.8 mph - N/A   Overcast
9:15 PM 53.6 °F - 53.6 °F 100% 30.03 in 10.0 mi West 6.9 mph - N/A   Overcast
9:35 PM 53.6 °F - 53.6 °F 100% 30.03 in 10.0 mi WNW 5.8 mph - N/A   Overcast
9:55 PM 53.6 °F - 53.6 °F 100% 30.02 in 1.5 mi WNW 3.5 mph - N/A   Overcast
10:15 PM 53.6 °F - 53.6 °F 100% 30.01 in 1.5 mi North 3.5 mph - N/A   Overcast
10:35 PM 53.6 °F - 53.6 °F 100% 30.01 in 3.0 mi NNW 3.5 mph - N/A   Overcast
10:55 PM 53.6 °F - 53.6 °F 100% 30.00 in 1.5 mi Calm Calm - N/A   Overcast
11:15 PM 53.6 °F - 53.6 °F 100% 29.99 in 5.0 mi WNW 8.1 mph - N/A   Overcast
11:35 PM 53.6 °F - 53.6 °F 100% 29.99 in 10.0 mi West 10.4 mph - N/A   Overcast
11:55 PM 53.6 °F - 53.6 °F 100% 29.98 in 10.0 mi WNW 10.4 mph - N/A   Overcast