Weather History for Petaluma, CA

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Thursday, October 17, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 60 °F 58 °F  
Max Temperature 82 °F 74 °F 87 °F (2008)
Min Temperature 37 °F 43 °F 37 °F (2006)
Degree Days  
Heating Degree Days 6    
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  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 36 °F    
Average Humidity 54    
Maximum Humidity 100    
Minimum Humidity 16    
Precipitation  
Precipitation 0.00 in - 0.92 in (1984)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Oct. 17, 2013 Rise Set
Actual Time 7:21 AM PDT 6:29 PM PDT
Civil Twilight 6:54 AM PDT 6:55 PM PDT
Nautical Twilight 6:24 AM PDT 7:26 PM PDT
Astronomical Twilight 5:53 AM PDT 7:57 PM PDT
Moon 5:46 PM PDT (10/17) 6:00 AM PDT (10/17)
Length of Visible Light 12h 01m
Length of Day
11h 07m
Waxing Gibbous, 98% of the Moon is Illuminated
Oct 17
Waxing Gibbous
Oct 18
Full
Oct 26
Last Quarter
Nov 3
New
Nov 9
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 46.4 °F 44.3 °F 35.6 °F 66% 30.08 in 10.0 mi West 4.6 mph - N/A   Clear
12:35 AM 44.6 °F 43.1 °F 33.8 °F 66% 30.08 in 10.0 mi NW 3.5 mph - N/A   Clear
12:55 AM 48.2 °F - 32.0 °F 54% 30.08 in 10.0 mi NW 3.5 mph - N/A   Clear
1:15 AM 48.2 °F - 32.0 °F 54% 30.08 in 10.0 mi NW 3.5 mph - N/A   Clear
1:35 AM 41.0 °F - 32.0 °F 70% 30.09 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 44.6 °F - 32.0 °F 61% 30.09 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 42.8 °F - 32.0 °F 66% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:35 AM 41.0 °F - 32.0 °F 70% 30.08 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 42.8 °F - 32.0 °F 66% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
3:15 AM 41.0 °F - 32.0 °F 70% 30.08 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 41.0 °F - 33.8 °F 76% 30.07 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 41.0 °F - 33.8 °F 76% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 41.0 °F - 32.0 °F 70% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 41.0 °F - 32.0 °F 70% 30.07 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 39.2 °F - 32.0 °F 75% 30.07 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 39.2 °F - 32.0 °F 75% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:35 AM 37.4 °F - 32.0 °F 81% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
5:55 AM 39.2 °F - 32.0 °F 75% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:15 AM 39.2 °F - 32.0 °F 75% 30.09 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:35 AM 37.4 °F - 32.0 °F 81% 30.09 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:55 AM 39.2 °F - 33.8 °F 81% 30.08 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:15 AM 39.2 °F - 33.8 °F 81% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 39.2 °F - 35.6 °F 87% 30.09 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 39.2 °F - 35.6 °F 87% 30.10 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 42.8 °F - 37.4 °F 81% 30.10 in 10.0 mi Calm Calm - N/A   Clear
8:35 AM 46.4 °F - 37.4 °F 71% 30.11 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 50.0 °F - 37.4 °F 62% 30.11 in 10.0 mi NW 4.6 mph - N/A   Clear
9:15 AM 51.8 °F - 37.4 °F 58% 30.11 in 10.0 mi West 3.5 mph - N/A   Clear
9:35 AM 53.6 °F - 35.6 °F 51% 30.12 in 10.0 mi West 3.5 mph - N/A   Clear
9:55 AM 57.2 °F - 37.4 °F 48% 30.12 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 59.0 °F - 37.4 °F 45% 30.11 in 10.0 mi WSW 4.6 mph - N/A   Clear
10:35 AM 62.6 °F - 37.4 °F 39% 30.11 in 10.0 mi WNW 3.5 mph - N/A   Clear
10:55 AM 64.4 °F - 35.6 °F 34% 30.10 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 66.2 °F - 35.6 °F 32% 30.10 in 10.0 mi Calm Calm - N/A   Clear
11:35 AM 69.8 °F - 33.8 °F 27% 30.10 in 10.0 mi Calm Calm - N/A   Clear
11:55 AM 71.6 °F - 33.8 °F 25% 30.09 in 10.0 mi South 3.5 mph - N/A   Clear
12:15 PM 73.4 °F - 32.0 °F 22% 30.08 in 10.0 mi South 3.5 mph - N/A   Clear
12:35 PM 75.2 °F - 32.0 °F 21% 30.07 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 77.0 °F - 32.0 °F 19% 30.06 in 10.0 mi SSW 3.5 mph - N/A   Clear
1:15 PM 78.8 °F - 32.0 °F 18% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:35 PM 80.6 °F - 32.0 °F 17% 30.04 in 10.0 mi Calm Calm - N/A   Clear
1:55 PM 80.6 °F - 33.8 °F 18% 30.03 in 10.0 mi NW 3.5 mph - N/A   Clear
2:15 PM 80.6 °F - 32.0 °F 17% 30.02 in 10.0 mi NW 3.5 mph - N/A   Clear
2:35 PM 80.6 °F - 35.6 °F 20% 30.01 in 10.0 mi WNW 3.5 mph - N/A   Clear
2:55 PM 82.4 °F - 32.0 °F 16% 30.00 in 10.0 mi WNW 4.6 mph - N/A   Clear
3:15 PM 82.4 °F - 32.0 °F 16% 29.99 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:35 PM 82.4 °F - 32.0 °F 16% 29.99 in 10.0 mi West 8.1 mph - N/A   Clear
3:55 PM 82.4 °F - 32.0 °F 16% 29.99 in 10.0 mi WNW 10.4 mph - N/A   Clear
4:15 PM 80.6 °F - 32.0 °F 17% 29.99 in 10.0 mi West 12.7 mph - N/A   Clear
4:35 PM 77.0 °F - 32.0 °F 19% 29.99 in 10.0 mi WNW 12.7 mph - N/A   Clear
4:55 PM 75.2 °F - 32.0 °F 21% 29.99 in 10.0 mi NW 5.8 mph - N/A   Clear
5:15 PM 73.4 °F - 32.0 °F 22% 29.99 in 10.0 mi NW 5.8 mph - N/A   Clear
5:35 PM 69.8 °F - 33.8 °F 27% 29.99 in 10.0 mi NW 8.1 mph - N/A   Clear
5:55 PM 68.0 °F - 32.0 °F 26% 30.00 in 10.0 mi NW 6.9 mph - N/A   Clear
6:15 PM 66.2 °F - 32.0 °F 28% 30.00 in 10.0 mi NNW 3.5 mph - N/A   Clear
6:35 PM 64.4 °F - 32.0 °F 30% 29.99 in 10.0 mi NW 4.6 mph - N/A   Clear
6:55 PM 62.6 °F - 35.6 °F 37% 30.00 in 10.0 mi NW 4.6 mph - N/A   Clear
7:15 PM 59.0 °F - 37.4 °F 45% 30.00 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:35 PM 57.2 °F - 37.4 °F 48% 30.00 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:55 PM 55.4 °F - 41.0 °F 58% 30.00 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:15 PM 55.4 °F - 44.6 °F 67% 30.00 in 10.0 mi NW 4.6 mph - N/A   Clear
8:35 PM 53.6 °F - 44.6 °F 72% 30.01 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:55 PM 53.6 °F - 44.6 °F 72% 30.00 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:15 PM 53.6 °F - 46.4 °F 77% 30.01 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
9:35 PM 51.8 °F - 46.4 °F 82% 30.01 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
9:55 PM 51.8 °F - 46.4 °F 82% 30.01 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
10:15 PM 50.0 °F - 46.4 °F 87% 30.02 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
10:35 PM 50.0 °F - 46.4 °F 87% 30.02 in 6.0 mi NW 3.5 mph - N/A   Mostly Cloudy
10:55 PM 50.0 °F - 48.2 °F 94% 30.02 in 3.0 mi NW 3.5 mph - N/A   Scattered Clouds
11:15 PM 48.2 °F - 48.2 °F 100% 30.02 in 7.0 mi NW 3.5 mph - N/A   Partly Cloudy
11:35 PM 48.2 °F - 48.2 °F 100% 30.02 in 7.0 mi Calm Calm - N/A   Partly Cloudy
11:55 PM 44.6 °F - 44.6 °F 100% 30.02 in 9.0 mi Calm Calm - N/A   Mostly Cloudy