Weather History for Petaluma, CA

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Monday, December 9, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 34 °F 46 °F  
Max Temperature 48 °F 56 °F 70 °F (2012)
Min Temperature 19 °F 36 °F 19 °F (2013)
Degree Days  
Heating Degree Days 32    
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 21 °F    
Average Humidity 71    
Maximum Humidity 100    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in - 2.05 in (1992)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.40 in    
Wind  
Wind Speed 2 mph (SSE)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 09, 2013 Rise Set
Actual Time 7:15 AM PST 4:50 PM PST
Civil Twilight 6:46 AM PST 5:19 PM PST
Nautical Twilight 6:13 AM PST 5:52 PM PST
Astronomical Twilight 5:41 AM PST 6:24 PM PST
Moon 12:16 PM PST (12/9) No Moon Set
Length of Visible Light 10h 33m
Length of Day
9h 34m
First Quarter, 52% of the Moon is Illuminated
Dec 9
First Quarter
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
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 26.6 °F - 19.4 °F 74% 30.35 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 24.8 °F - 19.4 °F 80% 30.35 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 23.0 °F - 19.4 °F 86% 30.35 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:15 AM 23.0 °F - 19.4 °F 86% 30.35 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:35 AM 24.8 °F 19.1 °F 21.2 °F 86% 30.34 in 10.0 mi NNW 4.6 mph - N/A   Partly Cloudy
1:55 AM 23.0 °F - 21.2 °F 93% 30.34 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 23.0 °F - 21.2 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 23.0 °F - 21.2 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 23.0 °F - 21.2 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 23.0 °F - 23.0 °F 100% 30.35 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 23.0 °F - 21.2 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 21.2 °F - 21.2 °F 100% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 21.2 °F - 19.4 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 21.2 °F - 19.4 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 21.2 °F - 21.2 °F 100% 30.36 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 21.2 °F - 19.4 °F 93% 30.35 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 21.2 °F 16.4 °F 21.2 °F 100% 30.35 in 10.0 mi WNW 3.5 mph - N/A   Clear
5:55 AM 19.4 °F - 19.4 °F 100% 30.36 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 19.4 °F - 19.4 °F 100% 30.36 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 19.4 °F - 19.4 °F 100% 30.37 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 19.4 °F - 19.4 °F 100% 30.37 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 21.2 °F - 21.2 °F 100% 30.38 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 19.4 °F - 19.4 °F 100% 30.39 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 21.2 °F - 21.2 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 23.0 °F - 23.0 °F 100% 30.40 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 26.6 °F - 24.8 °F 93% 30.40 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 28.4 °F - 24.8 °F 86% 30.41 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 32.0 °F - 26.6 °F 80% 30.41 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 33.8 °F - 26.6 °F 75% 30.42 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 37.4 °F 33.8 °F 26.6 °F 65% 30.43 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:15 AM 37.4 °F 32.8 °F 26.6 °F 65% 30.43 in 10.0 mi ESE 5.8 mph - N/A   Clear
10:35 AM 39.2 °F 34.2 °F 24.8 °F 56% 30.43 in 10.0 mi SE 6.9 mph - N/A   Clear
10:55 AM 41.0 °F 36.4 °F 24.8 °F 53% 30.43 in 10.0 mi SE 6.9 mph - N/A   Clear
11:15 AM 41.0 °F 34.7 °F 24.8 °F 53% 30.43 in 10.0 mi SSE 10.4 mph - N/A   Clear
11:35 AM 42.8 °F 37.0 °F 23.0 °F 46% 30.43 in 10.0 mi SSE 10.4 mph - N/A   Clear
11:55 AM 44.6 °F 39.2 °F 21.2 °F 39% 30.42 in 10.0 mi SE 10.4 mph - N/A   Clear
12:15 PM 44.6 °F 39.7 °F 19.4 °F 37% 30.41 in 10.0 mi SSE 9.2 mph - N/A   Clear
12:35 PM 46.4 °F 42.9 °F 19.4 °F 34% 30.41 in 10.0 mi SSE 6.9 mph - N/A   Clear
12:55 PM 46.4 °F 44.3 °F 19.4 °F 34% 30.40 in 10.0 mi ESE 4.6 mph - N/A   Clear
1:15 PM 46.4 °F 42.4 °F 17.6 °F 32% 30.41 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:35 PM 48.2 °F - 19.4 °F 32% 30.40 in 10.0 mi South 9.2 mph - N/A   Clear
1:55 PM 48.2 °F - 17.6 °F 30% 30.40 in 10.0 mi South 9.2 mph - N/A   Clear
2:15 PM 48.2 °F - 19.4 °F 32% 30.40 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:35 PM 48.2 °F - 17.6 °F 30% 30.39 in 10.0 mi South 9.2 mph - N/A   Clear
2:55 PM 48.2 °F - 17.6 °F 30% 30.39 in 10.0 mi South 5.8 mph - N/A   Clear
3:15 PM 48.2 °F - 17.6 °F 30% 30.39 in 10.0 mi South 6.9 mph - N/A   Clear
3:35 PM 48.2 °F - 17.6 °F 30% 30.40 in 10.0 mi South 5.8 mph - N/A   Clear
3:55 PM 46.4 °F 43.5 °F 17.6 °F 32% 30.40 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:15 PM 46.4 °F 43.5 °F 17.6 °F 32% 30.40 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:35 PM 44.6 °F 41.4 °F 17.6 °F 34% 30.40 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:55 PM 41.0 °F 39.0 °F 19.4 °F 42% 30.40 in 10.0 mi SE 3.5 mph - N/A   Clear
5:15 PM 39.2 °F 37.0 °F 21.2 °F 49% 30.40 in 10.0 mi ENE 3.5 mph - N/A   Clear
5:35 PM 37.4 °F - 21.2 °F 52% 30.40 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 35.6 °F - 21.2 °F 56% 30.41 in 10.0 mi Calm Calm - N/A   Clear
6:15 PM 32.0 °F - 21.2 °F 64% 30.41 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 32.0 °F - 21.2 °F 64% 30.41 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 32.0 °F 27.5 °F 23.0 °F 69% 30.41 in 10.0 mi ENE 4.6 mph - N/A   Clear
7:15 PM 32.0 °F 27.5 °F 23.0 °F 69% 30.41 in 10.0 mi ENE 4.6 mph - N/A   Clear
7:35 PM 32.0 °F - 23.0 °F 69% 30.42 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 30.2 °F 26.7 °F 23.0 °F 75% 30.43 in 10.0 mi NNW 3.5 mph - N/A   Clear
8:15 PM 30.2 °F - 23.0 °F 75% 30.43 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 32.0 °F - 23.0 °F 69% 30.43 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 26.6 °F - 21.2 °F 80% 30.44 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 26.6 °F 22.6 °F 23.0 °F 86% 30.44 in 10.0 mi ESE 3.5 mph - N/A   Clear
9:35 PM 28.4 °F - 23.0 °F 80% 30.44 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 26.6 °F - 23.0 °F 86% 30.45 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 26.6 °F - 23.0 °F 86% 30.45 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 26.6 °F - 23.0 °F 86% 30.46 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 26.6 °F - 23.0 °F 86% 30.46 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 26.6 °F - 23.0 °F 86% 30.45 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 24.8 °F - 21.2 °F 86% 30.45 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 24.8 °F - 23.0 °F 93% 30.45 in 10.0 mi Calm Calm - N/A   Clear