Weather History for Petaluma, CA

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Saturday, January 4, 2014

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 49 °F 45 °F  
Max Temperature 66 °F 54 °F 67 °F (2012)
Min Temperature 32 °F 36 °F 22 °F (2009)
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 35 °F    
Average Humidity 75    
Maximum Humidity 100    
Minimum Humidity 28    
Precipitation  
Precipitation 0.00 in - 5.69 in (1982)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 2 mph (South)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 04, 2014 Rise Set
Actual Time 7:27 AM PST 5:03 PM PST
Civil Twilight 6:58 AM PST 5:33 PM PST
Nautical Twilight 6:25 AM PST 6:06 PM PST
Astronomical Twilight 5:53 AM PST 6:38 PM PST
Moon 9:40 AM PST (1/4) 9:25 PM PST (1/4)
Length of Visible Light 10h 34m
Length of Day
9h 36m
Waxing Crescent, 16% of the Moon is Illuminated
Jan 4
Waxing Crescent
Jan 7
First Quarter
Jan 15
Full
Jan 23
Last Quarter
Jan 30
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 35.6 °F - 35.6 °F 100% 30.03 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 35.6 °F - 35.6 °F 100% 30.02 in 9.0 mi Calm Calm - N/A   Clear
12:55 AM 35.6 °F - 35.6 °F 100% 30.01 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:15 AM 33.8 °F - 33.8 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:35 AM 35.6 °F - 35.6 °F 100% 30.01 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 AM 35.6 °F 31.7 °F 35.6 °F 100% 30.02 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
2:15 AM 33.8 °F - 33.8 °F 100% 30.02 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:35 AM 35.6 °F - 35.6 °F 100% 30.02 in 9.0 mi Calm Calm - N/A   Overcast
2:55 AM 35.6 °F 32.8 °F 35.6 °F 100% 30.02 in 9.0 mi WNW 3.5 mph - N/A   Overcast
3:15 AM 35.6 °F - 35.6 °F 100% 30.02 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
3:35 AM 33.8 °F - 33.8 °F 100% 30.02 in 5.0 mi Calm Calm - N/A   Mostly Cloudy
3:55 AM 33.8 °F - 33.8 °F 100% 30.02 in 4.0 mi Calm Calm - N/A   Mostly Cloudy
4:15 AM 32.0 °F - 32.0 °F 100% 30.02 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 33.8 °F - 33.8 °F 100% 30.02 in 5.0 mi Calm Calm - N/A   Scattered Clouds
4:55 AM 33.8 °F - 33.8 °F 100% 30.02 in 3.0 mi Calm Calm - N/A   Partly Cloudy
5:15 AM 32.0 °F - 32.0 °F 100% 30.02 in 1.0 mi Calm Calm - N/A   Clear
5:35 AM 32.0 °F - 32.0 °F 100% 30.02 in 0.8 mi Calm Calm - N/A   Mostly Cloudy
5:55 AM 32.0 °F - 32.0 °F 100% 30.03 in 5.0 mi Calm Calm - N/A   Mostly Cloudy
6:15 AM 32.0 °F - 32.0 °F 100% 30.03 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
6:35 AM 32.0 °F - 32.0 °F 100% 30.03 in 8.0 mi Calm Calm - N/A   Scattered Clouds
6:55 AM 32.0 °F - 32.0 °F 100% 30.03 in 7.0 mi Calm Calm - N/A   Partly Cloudy
7:15 AM 32.0 °F - 32.0 °F 100% 30.04 in 7.0 mi Calm Calm - N/A   Partly Cloudy
7:35 AM 32.0 °F - 32.0 °F 100% 30.04 in 5.0 mi Calm Calm - N/A   Clear
7:55 AM 32.0 °F - 32.0 °F 100% 30.05 in 7.0 mi Calm Calm - N/A   Clear
8:15 AM 32.0 °F 28.7 °F 32.0 °F 100% 30.06 in 5.0 mi West 3.5 mph - N/A   Clear
8:35 AM 35.6 °F - 35.6 °F 100% 30.07 in 9.0 mi Calm Calm - N/A   Clear
8:55 AM 39.2 °F - 39.2 °F 100% 30.07 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 41.0 °F 39.0 °F 41.0 °F 100% 30.08 in 10.0 mi West 3.5 mph - N/A   Clear
9:35 AM 44.6 °F 43.1 °F 42.8 °F 93% 30.08 in 10.0 mi West 3.5 mph - N/A   Clear
9:55 AM 46.4 °F - 41.0 °F 81% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 48.2 °F - 41.0 °F 76% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 51.8 °F - 39.2 °F 62% 30.08 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 53.6 °F - 39.2 °F 58% 30.07 in 10.0 mi SSE 3.5 mph - N/A   Clear
11:15 AM 55.4 °F - 37.4 °F 51% 30.07 in 10.0 mi ESE 4.6 mph - N/A   Clear
11:35 AM 57.2 °F - 39.2 °F 51% 30.06 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:55 AM 57.2 °F - 39.2 °F 51% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Clear
12:15 PM 59.0 °F - 39.2 °F 48% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Clear
12:35 PM 59.0 °F - 37.4 °F 45% 30.03 in 10.0 mi South 5.8 mph - N/A   Clear
12:55 PM 62.6 °F - 37.4 °F 39% 30.03 in 10.0 mi South 6.9 mph - N/A   Clear
1:15 PM 62.6 °F - 37.4 °F 39% 30.02 in 10.0 mi SSE 5.8 mph - N/A   Clear
1:35 PM 62.6 °F - 37.4 °F 39% 30.02 in 10.0 mi South 6.9 mph - N/A   Clear
1:55 PM 64.4 °F - 37.4 °F 37% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Clear
2:15 PM 64.4 °F - 35.6 °F 34% 30.02 in 10.0 mi South 8.1 mph - N/A   Clear
2:35 PM 64.4 °F - 33.8 °F 32% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Clear
2:55 PM 66.2 °F - 33.8 °F 30% 30.01 in 10.0 mi SSE 6.9 mph - N/A   Clear
3:15 PM 66.2 °F - 32.0 °F 28% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Clear
3:35 PM 66.2 °F - 32.0 °F 28% 30.02 in 10.0 mi SSE 6.9 mph - N/A   Clear
3:50 PM 66.2 °F - 32.0 °F 28% 30.02 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:15 PM 64.4 °F - 32.0 °F 30% 30.02 in 10.0 mi Calm Calm - N/A   Clear
4:35 PM 62.6 °F - 32.0 °F 32% 30.03 in 10.0 mi Calm Calm - N/A   Clear
4:55 PM 59.0 °F - 32.0 °F 36% 30.03 in 10.0 mi ENE 3.5 mph - N/A   Clear
5:15 PM 51.8 °F - 30.2 °F 44% 30.03 in 10.0 mi NE 3.5 mph - N/A   Clear
5:35 PM 50.0 °F - 30.2 °F 47% 30.03 in 10.0 mi NE 3.5 mph - N/A   Clear
5:55 PM 51.8 °F - 28.4 °F 41% 30.03 in 10.0 mi North 3.5 mph - N/A   Clear
6:15 PM 48.2 °F - 33.8 °F 58% 30.03 in 10.0 mi NW 5.8 mph - N/A   Clear
6:35 PM 48.2 °F - 35.6 °F 62% 30.04 in 10.0 mi NW 3.5 mph - N/A   Clear
6:55 PM 46.4 °F 44.3 °F 37.4 °F 71% 30.05 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:15 PM 46.4 °F 45.2 °F 37.4 °F 71% 30.05 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:35 PM 44.6 °F 43.1 °F 35.6 °F 71% 30.05 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:55 PM 44.6 °F - 37.4 °F 76% 30.06 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 42.8 °F - 37.4 °F 81% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 42.8 °F - 35.6 °F 76% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 39.2 °F - 32.0 °F 75% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 41.0 °F - 32.0 °F 70% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 37.4 °F - 32.0 °F 81% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 39.2 °F - 33.8 °F 81% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 37.4 °F - 32.0 °F 81% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 37.4 °F - 33.8 °F 87% 30.10 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 35.6 °F 31.7 °F 32.0 °F 87% 30.10 in 10.0 mi NNW 4.6 mph - N/A   Clear
11:15 PM 37.4 °F - 33.8 °F 87% 30.10 in 8.0 mi Calm Calm - N/A   Partly Cloudy
11:35 PM 35.6 °F - 32.0 °F 87% 30.11 in 9.0 mi Calm Calm - N/A   Clear
11:55 PM 33.8 °F - 32.0 °F 93% 30.11 in 10.0 mi Calm Calm - N/A   Clear