Weather History for Petaluma, CA

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Wednesday, December 11, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 40 °F 46 °F  
Max Temperature 55 °F 56 °F 64 °F (2005)
Min Temperature 24 °F 36 °F 25 °F (2013)
Degree Days  
Heating Degree Days 26    
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 29 °F    
Average Humidity 74    
Maximum Humidity 100    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in - 1.15 in (1937)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 3 mph (SE)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 11, 2013 Rise Set
Actual Time 7:17 AM PST 4:50 PM PST
Civil Twilight 6:47 AM PST 5:19 PM PST
Nautical Twilight 6:14 AM PST 5:53 PM PST
Astronomical Twilight 5:42 AM PST 6:25 PM PST
Moon 1:23 PM PST (12/11) 1:48 AM PST (12/11)
Length of Visible Light 10h 32m
Length of Day
9h 33m
Waxing Gibbous, 72% of the Moon is Illuminated
Dec 11
Waxing Gibbous
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 28.4 °F - 26.6 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:15 AM 26.6 °F - 26.6 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 24.8 °F - 24.8 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:15 AM 24.8 °F - 24.8 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:35 AM 24.8 °F - 24.8 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 24.8 °F - 24.8 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 26.6 °F - 26.6 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 24.8 °F - 24.8 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 26.6 °F - 26.6 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:15 AM 24.8 °F - 24.8 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 26.6 °F 20.0 °F 26.6 °F 100% 30.23 in 10.0 mi ESE 5.8 mph - N/A   Clear
5:55 AM 28.4 °F 22.2 °F 28.4 °F 100% 30.24 in 10.0 mi ESE 5.8 mph - N/A   Clear
6:15 AM 30.2 °F 24.3 °F 26.6 °F 86% 30.24 in 10.0 mi ESE 5.8 mph - N/A   Clear
6:35 AM 32.0 °F 25.6 °F 26.6 °F 80% 30.24 in 10.0 mi ESE 6.9 mph - N/A   Clear
6:55 AM 32.0 °F - 26.6 °F 80% 30.24 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 32.0 °F 26.4 °F 26.6 °F 80% 30.25 in 10.0 mi SE 5.8 mph - N/A   Clear
7:35 AM 35.6 °F 30.7 °F 28.4 °F 75% 30.25 in 10.0 mi ESE 5.8 mph - N/A   Clear
7:55 AM 35.6 °F 30.7 °F 28.4 °F 75% 30.26 in 10.0 mi SE 5.8 mph - N/A   Clear
8:15 AM 37.4 °F 32.8 °F 28.4 °F 70% 30.26 in 10.0 mi SE 5.8 mph - N/A   Clear
8:35 AM 39.2 °F 35.0 °F 28.4 °F 65% 30.27 in 10.0 mi SE 5.8 mph - N/A   Clear
8:55 AM 39.2 °F 34.2 °F 30.2 °F 70% 30.27 in 10.0 mi SE 6.9 mph - N/A   Clear
9:15 AM 41.0 °F 35.2 °F 32.0 °F 70% 30.28 in 10.0 mi SE 9.2 mph - N/A   Clear
9:35 AM 42.8 °F 37.5 °F 33.8 °F 70% 30.28 in 10.0 mi SSE 9.2 mph - N/A   Clear
9:55 AM 44.6 °F 39.7 °F 33.8 °F 66% 30.28 in 10.0 mi SSE 9.2 mph - N/A   Clear
10:15 AM 46.4 °F 41.5 °F 33.8 °F 62% 30.28 in 10.0 mi SE 10.4 mph - N/A   Clear
10:35 AM 46.4 °F 41.5 °F 33.8 °F 62% 30.28 in 10.0 mi SSE 10.4 mph - N/A   Clear
10:55 AM 46.4 °F 41.9 °F 32.0 °F 57% 30.27 in 10.0 mi SSE 9.2 mph - N/A   Clear
11:15 AM 48.2 °F - 32.0 °F 54% 30.27 in 10.0 mi South 8.1 mph - N/A   Clear
11:35 AM 50.0 °F - 32.0 °F 50% 30.25 in 10.0 mi SSE 8.1 mph - N/A   Clear
11:55 AM 51.8 °F - 28.4 °F 41% 30.24 in 10.0 mi SSE 9.2 mph - N/A   Clear
12:15 PM 53.6 °F - 30.2 °F 41% 30.23 in 10.0 mi SSE 12.7 mph - N/A   Clear
12:35 PM 53.6 °F - 30.2 °F 41% 30.23 in 10.0 mi SSE 15.0 mph - N/A   Clear
12:55 PM 53.6 °F - 30.2 °F 41% 30.22 in 10.0 mi SSE 13.8 mph - N/A   Clear
1:15 PM 53.6 °F - 30.2 °F 41% 30.22 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:35 PM 53.6 °F - 30.2 °F 41% 30.22 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:55 PM 53.6 °F - 30.2 °F 41% 30.22 in 10.0 mi SSE 10.4 mph - N/A   Clear
2:15 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SSE 10.4 mph - N/A   Clear
2:35 PM 55.4 °F - 32.0 °F 41% 30.21 in 10.0 mi SSE 11.5 mph - N/A   Clear
2:55 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SSE 8.1 mph - N/A   Clear
3:15 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SE 9.2 mph - N/A   Clear
3:35 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SSE 9.2 mph - N/A   Clear
3:55 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SSE 5.8 mph - N/A   Clear
4:15 PM 53.6 °F - 32.0 °F 44% 30.21 in 10.0 mi SSE 8.1 mph - N/A   Clear
4:35 PM 50.0 °F - 32.0 °F 50% 30.21 in 10.0 mi SSE 6.9 mph - N/A   Clear
4:55 PM 48.2 °F - 32.0 °F 54% 30.21 in 10.0 mi SE 4.6 mph - N/A   Clear
5:15 PM 46.4 °F 45.2 °F 32.0 °F 57% 30.21 in 10.0 mi SE 3.5 mph - N/A   Clear
5:35 PM 46.4 °F 45.2 °F 32.0 °F 57% 30.22 in 10.0 mi SE 3.5 mph - N/A   Clear
5:55 PM 41.0 °F - 32.0 °F 70% 30.22 in 10.0 mi Calm Calm - N/A   Clear
6:15 PM 39.2 °F 37.0 °F 30.2 °F 70% 30.22 in 10.0 mi NNE 3.5 mph - N/A   Clear
6:35 PM 41.0 °F 39.0 °F 32.0 °F 70% 30.22 in 10.0 mi NE 3.5 mph - N/A   Clear
6:55 PM 39.2 °F - 30.2 °F 70% 30.22 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 35.6 °F - 28.4 °F 75% 30.22 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 35.6 °F 32.8 °F 28.4 °F 75% 30.22 in 10.0 mi ENE 3.5 mph - N/A   Clear
7:55 PM 35.6 °F - 28.4 °F 75% 30.22 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 35.6 °F 31.7 °F 28.4 °F 75% 30.22 in 10.0 mi East 4.6 mph - N/A   Clear
8:35 PM 37.4 °F 33.8 °F 30.2 °F 75% 30.23 in 10.0 mi ENE 4.6 mph - N/A   Partly Cloudy
8:55 PM 35.6 °F - 28.4 °F 75% 30.23 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 33.8 °F - 28.4 °F 81% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:35 PM 32.0 °F - 28.4 °F 87% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:55 PM 32.0 °F - 28.4 °F 87% 30.24 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 32.0 °F - 30.2 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:35 PM 32.0 °F - 28.4 °F 87% 30.24 in 9.0 mi Calm Calm - N/A   Partly Cloudy
10:55 PM 30.2 °F - 28.4 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 30.2 °F - 28.4 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:35 PM 30.2 °F - 28.4 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:55 PM 30.2 °F - 28.4 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy