Weather History for Petaluma, CA

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Sunday, January 12, 2014

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 48 °F 46 °F  
Max Temperature 60 °F 55 °F 80 °F (2009)
Min Temperature 37 °F 37 °F 26 °F (2012)
Degree Days  
Heating Degree Days 16    
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 39 °F    
Average Humidity 76    
Maximum Humidity 100    
Minimum Humidity 39    
Precipitation  
Precipitation 0.00 in - 1.96 in (1980)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.35 in    
Wind  
Wind Speed 5 mph (WNW)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 12, 2014 Rise Set
Actual Time 7:26 AM PST 5:11 PM PST
Civil Twilight 6:57 AM PST 5:40 PM PST
Nautical Twilight 6:25 AM PST 6:12 PM PST
Astronomical Twilight 5:53 AM PST 6:44 PM PST
Moon 2:43 PM PST (1/12) 4:30 AM PST (1/12)
Length of Visible Light 10h 42m
Length of Day
9h 44m
Waxing Gibbous, 90% of the Moon is Illuminated
Jan 12
Waxing Gibbous
Jan 15
Full
Jan 23
Last Quarter
Jan 30
New
Feb 6
First 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 39.2 °F - 39.2 °F 100% 30.30 in 0.8 mi Calm Calm - N/A   Overcast
12:35 AM 41.0 °F 37.1 °F 41.0 °F 100% 30.30 in 0.5 mi West 5.8 mph - N/A   Overcast
12:55 AM 41.0 °F 35.8 °F 41.0 °F 100% 30.30 in 0.2 mi WNW 8.1 mph - N/A   Overcast
1:15 AM 42.8 °F 38.6 °F 42.8 °F 100% 30.31 in 0.2 mi WNW 6.9 mph - N/A   Overcast
1:35 AM 42.8 °F 38.6 °F 42.8 °F 100% 30.30 in 0.2 mi West 6.9 mph - N/A   Overcast
1:55 AM 41.0 °F 35.8 °F 41.0 °F 100% 30.31 in 1.5 mi WNW 8.1 mph - N/A   Mostly Cloudy
2:15 AM 41.0 °F 38.0 °F 41.0 °F 100% 30.31 in 3.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
2:35 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.31 in 0.2 mi NNW 3.5 mph - N/A   Overcast
2:55 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.29 in 0.2 mi NW 3.5 mph - N/A   Overcast
3:15 AM 39.2 °F 35.0 °F 39.2 °F 100% 30.29 in 0.2 mi WNW 5.8 mph - N/A   Overcast
3:35 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.30 in 0.2 mi NNE 3.5 mph - N/A   Overcast
3:55 AM 39.2 °F 35.9 °F 39.2 °F 100% 30.31 in 0.5 mi WNW 4.6 mph - N/A   Overcast
4:15 AM 37.4 °F 32.8 °F 37.4 °F 100% 30.31 in 0.5 mi WNW 5.8 mph - N/A   Mostly Cloudy
4:35 AM 37.4 °F 34.9 °F 37.4 °F 100% 30.32 in 0.8 mi NW 3.5 mph - N/A   Unknown
4:55 AM 37.4 °F 34.9 °F 37.4 °F 100% 30.33 in 8.0 mi NW 3.5 mph - N/A   Mostly Cloudy
5:15 AM 37.4 °F 32.1 °F 37.4 °F 100% 30.32 in 10.0 mi West 6.9 mph - N/A   Overcast
5:35 AM 37.4 °F 32.1 °F 37.4 °F 100% 30.33 in 8.0 mi West 6.9 mph - N/A   Overcast
5:55 AM 39.2 °F - 39.2 °F 100% 30.34 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:15 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.34 in 10.0 mi SW 3.5 mph - N/A   Scattered Clouds
6:35 AM 39.2 °F 35.9 °F 39.2 °F 100% 30.34 in 10.0 mi WSW 4.6 mph - N/A   Partly Cloudy
6:55 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.35 in 10.0 mi West 3.5 mph - N/A   Partly Cloudy
7:15 AM 37.4 °F 33.8 °F 37.4 °F 100% 30.35 in 10.0 mi North 4.6 mph - N/A   Partly Cloudy
7:35 AM 37.4 °F 32.1 °F 37.4 °F 100% 30.36 in 10.0 mi WNW 6.9 mph - N/A   Clear
7:55 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.38 in 10.0 mi NW 3.5 mph - N/A   Clear
8:15 AM 39.2 °F 37.0 °F 39.2 °F 100% 30.39 in 10.0 mi NW 3.5 mph - N/A   Clear
8:35 AM 39.2 °F 34.2 °F 39.2 °F 100% 30.40 in 10.0 mi WNW 6.9 mph - N/A   Clear
8:55 AM 41.0 °F - 41.0 °F 100% 30.41 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.41 in 10.0 mi WNW 3.5 mph - N/A   Clear
9:35 AM 44.6 °F 42.2 °F 44.6 °F 100% 30.42 in 10.0 mi WNW 4.6 mph - N/A   Clear
9:55 AM 46.4 °F - 46.4 °F 100% 30.43 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 48.2 °F - 46.4 °F 93% 30.44 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:35 AM 50.0 °F - 46.4 °F 87% 30.43 in 10.0 mi WNW 5.8 mph - N/A   Clear
10:55 AM 51.8 °F - 44.6 °F 76% 30.42 in 10.0 mi WNW 8.1 mph - N/A   Clear
11:15 AM 53.6 °F - 42.8 °F 67% 30.42 in 10.0 mi WNW 6.9 mph - N/A   Clear
11:35 AM 55.4 °F - 42.8 °F 63% 30.41 in 10.0 mi WNW 5.8 mph - N/A   Clear
11:55 AM 55.4 °F - 42.8 °F 63% 30.41 in 10.0 mi West 10.4 mph - N/A   Clear
12:15 PM 55.4 °F - 41.0 °F 58% 30.39 in 10.0 mi NW 5.8 mph - N/A   Clear
12:35 PM 57.2 °F - 41.0 °F 55% 30.38 in 10.0 mi WNW 8.1 mph - N/A   Clear
12:55 PM 57.2 °F - 41.0 °F 55% 30.37 in 10.0 mi WNW 8.1 mph - N/A   Clear
1:15 PM 59.0 °F - 41.0 °F 51% 30.36 in 10.0 mi WNW 11.5 mph - N/A   Clear
1:35 PM 59.0 °F - 39.2 °F 48% 30.35 in 10.0 mi NW 6.9 mph - N/A   Clear
1:55 PM 59.0 °F - 39.2 °F 48% 30.35 in 10.0 mi WNW 9.2 mph - N/A   Clear
2:15 PM 59.0 °F - 41.0 °F 51% 30.35 in 10.0 mi WNW 10.4 mph - N/A   Clear
2:35 PM 59.0 °F - 39.2 °F 48% 30.35 in 10.0 mi NW 5.8 mph - N/A   Clear
2:55 PM 60.8 °F - 37.4 °F 42% 30.35 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:15 PM 60.8 °F - 37.4 °F 42% 30.34 in 10.0 mi WNW 9.2 mph - N/A   Clear
3:35 PM 60.8 °F - 37.4 °F 42% 30.35 in 10.0 mi NW 5.8 mph - N/A   Clear
3:55 PM 60.8 °F - 37.4 °F 42% 30.35 in 10.0 mi WNW 8.1 mph - N/A   Clear
4:15 PM 60.8 °F - 35.6 °F 39% 30.35 in 10.0 mi WNW 6.9 mph - N/A   Clear
4:35 PM 59.0 °F - 37.4 °F 45% 30.35 in 10.0 mi West 8.1 mph - N/A   Clear
4:55 PM 57.2 °F - 37.4 °F 48% 30.34 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:15 PM 55.4 °F - 35.6 °F 47% 30.35 in 10.0 mi NW 3.5 mph - N/A   Clear
5:35 PM 55.4 °F - 35.6 °F 47% 30.35 in 10.0 mi NW 4.6 mph - N/A   Clear
5:55 PM 55.4 °F - 35.6 °F 47% 30.36 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:15 PM 55.4 °F - 37.4 °F 51% 30.35 in 10.0 mi West 11.5 mph - N/A   Clear
6:35 PM 55.4 °F - 37.4 °F 51% 30.35 in 10.0 mi WNW 9.2 mph - N/A   Clear
6:55 PM 55.4 °F - 37.4 °F 51% 30.35 in 10.0 mi West 13.8 mph - N/A   Clear
7:15 PM 53.6 °F - 37.4 °F 54% 30.35 in 10.0 mi WNW 4.6 mph - N/A   Clear
7:35 PM 51.8 °F - 37.4 °F 58% 30.35 in 10.0 mi WNW 9.2 mph - N/A   Clear
7:55 PM 53.6 °F - 39.2 °F 58% 30.35 in 10.0 mi NW 5.8 mph 17.3 mph N/A   Clear
8:15 PM 53.6 °F - 37.4 °F 54% 30.34 in 10.0 mi NE 3.5 mph - N/A   Clear
8:35 PM 50.0 °F - 37.4 °F 62% 30.35 in 10.0 mi SSE 4.6 mph - N/A   Clear
8:55 PM 48.2 °F - 37.4 °F 66% 30.35 in 10.0 mi ENE 5.8 mph - N/A   Clear
9:15 PM 48.2 °F - 37.4 °F 66% 30.35 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 46.4 °F 45.2 °F 37.4 °F 71% 30.37 in 10.0 mi NNW 3.5 mph - N/A   Clear
9:55 PM 44.6 °F - 37.4 °F 76% 30.37 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 48.2 °F - 37.4 °F 66% 30.37 in 10.0 mi NW 3.5 mph - N/A   Clear
10:35 PM 46.4 °F - 37.4 °F 71% 30.37 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 46.4 °F - 37.4 °F 71% 30.37 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 46.4 °F 44.3 °F 37.4 °F 71% 30.37 in 10.0 mi WNW 4.6 mph - N/A   Clear
11:35 PM 46.4 °F 42.9 °F 37.4 °F 71% 30.37 in 10.0 mi West 6.9 mph - N/A   Clear
11:55 PM 48.2 °F - 39.2 °F 71% 30.37 in 10.0 mi NW 5.8 mph - N/A   Clear