Weather History for Petaluma, CA

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Friday, January 31, 2014

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 50 °F 47 °F  
Max Temperature 64 °F 57 °F 65 °F (2013)
Min Temperature 37 °F 38 °F 23 °F (2001)
Degree Days  
Heating Degree Days 14    
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 35 °F    
Average Humidity 70    
Maximum Humidity 100    
Minimum Humidity 15    
Precipitation  
Precipitation 0.00 in - 2.04 in (1963)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 6 mph (WNW)    
Max Wind Speed 16 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 31, 2014 Rise Set
Actual Time 7:16 AM PST 5:32 PM PST
Civil Twilight 6:48 AM PST 6:00 PM PST
Nautical Twilight 6:16 AM PST 6:31 PM PST
Astronomical Twilight 5:45 AM PST 7:02 PM PST
Moon 7:31 AM PST (1/31) 7:00 PM PST (1/31)
Length of Visible Light 11h 11m
Length of Day
10h 16m
New Moon, 1% of the Moon is Illuminated
Jan 31
New Moon
Feb 6
First Quarter
Feb 14
Full
Feb 22
Last Quarter
Mar 1
New

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 48.2 °F - 46.4 °F 93% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
12:35 AM 46.4 °F - 46.4 °F 100% 29.93 in 10.0 mi Calm Calm - N/A   Overcast
12:55 AM 46.4 °F - 46.4 °F 100% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
1:15 AM 46.4 °F 44.3 °F 46.4 °F 100% 29.95 in 10.0 mi North 4.6 mph - N/A   Overcast
1:35 AM 46.4 °F 44.3 °F 46.4 °F 100% 29.96 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
1:55 AM 44.6 °F 43.1 °F 44.6 °F 100% 29.96 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
2:15 AM 44.6 °F - 44.6 °F 100% 29.96 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:35 AM 41.0 °F - 41.0 °F 100% 29.95 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 41.0 °F 39.0 °F 41.0 °F 100% 29.96 in 10.0 mi West 3.5 mph - N/A   Clear
3:15 AM 39.2 °F 37.0 °F 39.2 °F 100% 29.96 in 10.0 mi NNW 3.5 mph - N/A   Clear
3:35 AM 41.0 °F 39.0 °F 41.0 °F 100% 29.98 in 10.0 mi West 3.5 mph - N/A   Clear
3:55 AM 41.0 °F 38.0 °F 41.0 °F 100% 29.98 in 10.0 mi WSW 4.6 mph - N/A   Clear
4:15 AM 42.8 °F 39.3 °F 42.8 °F 100% 29.97 in 10.0 mi WNW 5.8 mph - N/A   Clear
4:35 AM 42.8 °F 37.5 °F 42.8 °F 100% 29.99 in 10.0 mi WSW 9.2 mph - N/A   Clear
4:55 AM 44.6 °F 41.4 °F 44.6 °F 100% 29.99 in 10.0 mi West 5.8 mph - N/A   Clear
5:15 AM 41.0 °F 35.8 °F 41.0 °F 100% 30.00 in 10.0 mi West 8.1 mph - N/A   Clear
5:35 AM 41.0 °F 36.4 °F 41.0 °F 100% 30.00 in 10.0 mi West 6.9 mph - N/A   Clear
5:55 AM 41.0 °F 37.1 °F 41.0 °F 100% 30.01 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:15 AM 39.2 °F 35.9 °F 39.2 °F 100% 30.01 in 10.0 mi West 4.6 mph - N/A   Clear
6:35 AM 37.4 °F 34.9 °F 37.4 °F 100% 30.02 in 10.0 mi NNW 3.5 mph - N/A   Clear
6:55 AM 39.2 °F 35.9 °F 39.2 °F 100% 30.02 in 10.0 mi WNW 4.6 mph - N/A   Clear
7:15 AM 39.2 °F 35.0 °F 39.2 °F 100% 30.02 in 10.0 mi WNW 5.8 mph - N/A   Clear
7:35 AM 39.2 °F 35.0 °F 39.2 °F 100% 30.04 in 10.0 mi WSW 5.8 mph - N/A   Clear
7:55 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.05 in 10.0 mi NW 3.5 mph - N/A   Clear
8:15 AM 41.0 °F 36.4 °F 41.0 °F 100% 30.06 in 10.0 mi West 6.9 mph - N/A   Clear
8:35 AM 44.6 °F 39.7 °F 41.0 °F 87% 30.07 in 10.0 mi WNW 9.2 mph - N/A   Clear
8:55 AM 48.2 °F - 39.2 °F 71% 30.07 in 10.0 mi NW 5.8 mph - N/A   Clear
9:15 AM 48.2 °F - 37.4 °F 66% 30.08 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Clear
9:35 AM 48.2 °F - 35.6 °F 62% 30.08 in 10.0 mi NW 12.7 mph 19.6 mph N/A   Clear
9:55 AM 50.0 °F - 35.6 °F 58% 30.09 in 10.0 mi WNW 13.8 mph 18.4 mph N/A   Clear
10:15 AM 51.8 °F - 35.6 °F 54% 30.09 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Clear
10:35 AM 53.6 °F - 32.0 °F 44% 30.09 in 10.0 mi NW 9.2 mph 17.3 mph N/A   Clear
10:55 AM 55.4 °F - 32.0 °F 41% 30.10 in 10.0 mi NW 6.9 mph - N/A   Clear
11:15 AM 55.4 °F - 32.0 °F 41% 30.10 in 10.0 mi NW 6.9 mph - N/A   Clear
11:35 AM 57.2 °F - 30.2 °F 36% 30.10 in 10.0 mi NW 8.1 mph - N/A   Clear
11:55 AM 57.2 °F - 26.6 °F 31% 30.09 in 10.0 mi NW 8.1 mph - N/A   Clear
12:15 PM 59.0 °F - 26.6 °F 29% 30.08 in 10.0 mi NW 9.2 mph 16.1 mph N/A   Clear
12:35 PM 59.0 °F - 26.6 °F 29% 30.07 in 10.0 mi WNW 10.4 mph 18.4 mph N/A   Clear
12:55 PM 60.8 °F - 24.8 °F 25% 30.06 in 10.0 mi NW 10.4 mph 17.3 mph N/A   Clear
1:15 PM 60.8 °F - 24.8 °F 25% 30.06 in 10.0 mi NNW 6.9 mph 17.3 mph N/A   Clear
1:35 PM 62.6 °F - 23.0 °F 22% 30.05 in 10.0 mi NW 9.2 mph - N/A   Clear
1:55 PM 62.6 °F - 23.0 °F 22% 30.04 in 10.0 mi NNW 10.4 mph - N/A   Clear
2:15 PM 62.6 °F - 21.2 °F 20% 30.04 in 10.0 mi NW 8.1 mph 18.4 mph N/A   Clear
2:35 PM 64.4 °F - 17.6 °F 16% 30.04 in 10.0 mi WNW 15.0 mph 23.0 mph N/A   Clear
2:55 PM 62.6 °F - 17.6 °F 18% 30.03 in 10.0 mi WNW 16.1 mph 31.1 mph N/A   Clear
3:15 PM 62.6 °F - 15.8 °F 16% 30.04 in 10.0 mi NW 9.2 mph 26.5 mph N/A   Clear
3:35 PM 62.6 °F - 14.0 °F 15% 30.04 in 10.0 mi NW 13.8 mph 27.6 mph N/A   Clear
3:55 PM 62.6 °F - 15.8 °F 16% 30.04 in 10.0 mi NW 12.7 mph 23.0 mph N/A   Clear
4:15 PM 60.8 °F - 17.6 °F 19% 30.04 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Clear
4:35 PM 59.0 °F - 28.4 °F 31% 30.04 in 10.0 mi West 13.8 mph 18.4 mph N/A   Clear
4:55 PM 57.2 °F - 30.2 °F 36% 30.05 in 10.0 mi West 13.8 mph - N/A   Clear
5:15 PM 55.4 °F - 33.8 °F 44% 30.05 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
5:35 PM 51.8 °F - 37.4 °F 58% 30.06 in 10.0 mi West 11.5 mph - N/A   Clear
5:55 PM 50.0 °F - 37.4 °F 62% 30.07 in 10.0 mi West 10.4 mph - N/A   Clear
6:15 PM 50.0 °F - 37.4 °F 62% 30.08 in 10.0 mi West 10.4 mph - N/A   Clear
6:35 PM 48.2 °F - 39.2 °F 71% 30.08 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
6:55 PM 46.4 °F 43.5 °F 39.2 °F 76% 30.08 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
7:15 PM 44.6 °F 42.2 °F 39.2 °F 81% 30.08 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
7:35 PM 42.8 °F 39.3 °F 39.2 °F 87% 30.08 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:55 PM 42.8 °F 37.5 °F 39.2 °F 87% 30.09 in 10.0 mi West 9.2 mph - N/A   Clear
8:15 PM 44.6 °F 41.4 °F 39.2 °F 81% 30.09 in 10.0 mi NW 5.8 mph - N/A   Clear
8:35 PM 42.8 °F 37.5 °F 39.2 °F 87% 30.10 in 10.0 mi WNW 9.2 mph - N/A   Clear
8:55 PM 42.8 °F 37.5 °F 37.4 °F 81% 30.10 in 10.0 mi WNW 9.2 mph - N/A   Clear
9:15 PM 42.8 °F 38.0 °F 37.4 °F 81% 30.10 in 10.0 mi WNW 8.1 mph - N/A   Clear
9:35 PM 41.0 °F 37.1 °F 35.6 °F 81% 30.11 in 10.0 mi West 5.8 mph - N/A   Clear
9:55 PM 42.8 °F 37.5 °F 37.4 °F 81% 30.11 in 10.0 mi West 9.2 mph - N/A   Clear
10:15 PM 41.0 °F 36.4 °F 35.6 °F 81% 30.11 in 10.0 mi WNW 6.9 mph - N/A   Clear
10:35 PM 41.0 °F 35.8 °F 37.4 °F 87% 30.11 in 10.0 mi West 8.1 mph - N/A   Clear
10:55 PM 41.0 °F 36.4 °F 37.4 °F 87% 30.11 in 10.0 mi West 6.9 mph - N/A   Clear
11:15 PM 41.0 °F 36.4 °F 35.6 °F 81% 30.11 in 10.0 mi West 6.9 mph - N/A   Clear
11:35 PM 41.0 °F 35.8 °F 35.6 °F 81% 30.11 in 10.0 mi West 8.1 mph - N/A   Clear
11:55 PM 41.0 °F 35.8 °F 35.6 °F 81% 30.11 in 10.0 mi West 8.1 mph - N/A   Clear