Weather History for Petaluma, CA

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Friday, January 11, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 41 °F 46 °F  
Max Temperature 50 °F 55 °F 66 °F (2012)
Min Temperature 32 °F 37 °F 24 °F (2007)
Degree Days  
Heating Degree Days 24    
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 34 °F    
Average Humidity 78    
Maximum Humidity 100    
Minimum Humidity 57    
Precipitation  
Precipitation 0.00 in - 4.77 in (1979)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.20 in    
Wind  
Wind Speed 6 mph (NW)    
Max Wind Speed 16 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 11, 2013 Rise Set
Actual Time 7:26 AM PST 5:10 PM PST
Civil Twilight 6:57 AM PST 5:39 PM PST
Nautical Twilight 6:25 AM PST 6:12 PM PST
Astronomical Twilight 5:53 AM PST 6:44 PM PST
Moon 7:05 AM PST (1/11) 5:34 PM PST (1/11)
Length of Visible Light 10h 41m
Length of Day
9h 43m
New Moon, 0% of the Moon is Illuminated
Jan 11
New Moon
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 9
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 30.7 °F 30.2 °F 81% 30.22 in 10.0 mi NW 5.8 mph - N/A   Clear
12:35 AM 35.6 °F 28.6 °F 30.2 °F 81% 30.21 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
12:55 AM 37.4 °F 32.1 °F 32.0 °F 81% 30.21 in 10.0 mi WNW 6.9 mph - N/A   Clear
1:15 AM 37.4 °F 31.4 °F 32.0 °F 81% 30.21 in 10.0 mi NW 8.1 mph - N/A   Clear
1:35 AM 37.4 °F 32.8 °F 32.0 °F 81% 30.21 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
1:55 AM 37.4 °F 32.8 °F 30.2 °F 75% 30.21 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
2:15 AM 37.4 °F 33.8 °F 30.2 °F 75% 30.22 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
2:35 AM 37.4 °F 32.8 °F 32.0 °F 81% 30.22 in 10.0 mi NW 5.8 mph - N/A   Clear
2:55 AM 37.4 °F 31.4 °F 32.0 °F 81% 30.22 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
3:15 AM 37.4 °F 32.1 °F 32.0 °F 81% 30.22 in 10.0 mi NW 6.9 mph - N/A   Partly Cloudy
3:35 AM 35.6 °F 31.7 °F 30.2 °F 81% 30.22 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
3:55 AM 35.6 °F 30.7 °F 30.2 °F 81% 30.22 in 10.0 mi WNW 5.8 mph - N/A   Clear
4:15 AM 35.6 °F 30.7 °F 30.2 °F 81% 30.22 in 10.0 mi NNW 5.8 mph - N/A   Clear
4:35 AM 37.4 °F 33.8 °F 30.2 °F 75% 30.22 in 10.0 mi NW 4.6 mph - N/A   Clear
4:55 AM 37.4 °F 32.1 °F 28.4 °F 70% 30.23 in 10.0 mi NNW 6.9 mph - N/A   Partly Cloudy
5:15 AM 37.4 °F 32.8 °F 28.4 °F 70% 30.22 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
5:35 AM 37.4 °F 32.8 °F 30.2 °F 75% 30.23 in 10.0 mi NNW 5.8 mph - N/A   Scattered Clouds
5:55 AM 35.6 °F 31.7 °F 28.4 °F 75% 30.23 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
6:15 AM 35.6 °F 30.7 °F 28.4 °F 75% 30.24 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
6:35 AM 37.4 °F 33.8 °F 30.2 °F 75% 30.24 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
6:55 AM 37.4 °F 33.8 °F 30.2 °F 75% 30.24 in 10.0 mi NW 4.6 mph - N/A   Clear
7:15 AM 35.6 °F 31.7 °F 30.2 °F 81% 30.25 in 10.0 mi West 4.6 mph - N/A   Clear
7:35 AM 35.6 °F 30.7 °F 30.2 °F 81% 30.26 in 10.0 mi West 5.8 mph - N/A   Clear
7:55 AM 35.6 °F 29.9 °F 32.0 °F 87% 30.26 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
8:15 AM 37.4 °F 32.1 °F 32.0 °F 81% 30.26 in 10.0 mi WNW 6.9 mph - N/A   Scattered Clouds
8:35 AM 37.4 °F 32.8 °F 32.0 °F 81% 30.27 in 10.0 mi WNW 5.8 mph - N/A   Clear
8:55 AM 37.4 °F 32.8 °F 32.0 °F 81% 30.27 in 10.0 mi WNW 5.8 mph - N/A   Clear
9:15 AM 39.2 °F 37.0 °F 32.0 °F 75% 30.27 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
9:35 AM 39.2 °F 35.0 °F 32.0 °F 75% 30.27 in 10.0 mi WNW 5.8 mph - N/A   Mostly Cloudy
9:55 AM 39.2 °F 37.0 °F 32.0 °F 75% 30.27 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
10:15 AM 41.0 °F 39.0 °F 32.0 °F 70% 30.27 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
10:35 AM 42.8 °F 40.1 °F 32.0 °F 66% 30.27 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
10:55 AM 42.8 °F 40.1 °F 32.0 °F 66% 30.26 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
11:15 AM 44.6 °F 43.1 °F 32.0 °F 61% 30.25 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
11:35 AM 44.6 °F 40.7 °F 32.0 °F 61% 30.23 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
11:55 AM 46.4 °F 42.4 °F 32.0 °F 57% 30.22 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
12:15 PM 46.4 °F 43.5 °F 33.8 °F 62% 30.21 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
12:35 PM 48.2 °F - 35.6 °F 62% 30.20 in 10.0 mi WNW 5.8 mph - N/A   Partly Cloudy
12:55 PM 48.2 °F - 35.6 °F 62% 30.19 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
1:15 PM 50.0 °F - 35.6 °F 58% 30.18 in 10.0 mi NNW 3.5 mph - N/A   Overcast
1:35 PM 50.0 °F - 35.6 °F 58% 30.17 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
1:55 PM 50.0 °F - 37.4 °F 62% 30.17 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
2:15 PM 50.0 °F - 37.4 °F 62% 30.16 in 10.0 mi West 12.7 mph 16.1 mph N/A   Partly Cloudy
2:35 PM 50.0 °F - 39.2 °F 66% 30.16 in 10.0 mi WNW 11.5 mph 16.1 mph N/A   Scattered Clouds
2:55 PM 50.0 °F - 39.2 °F 66% 30.16 in 10.0 mi West 13.8 mph - N/A   Clear
3:15 PM 50.0 °F - 39.2 °F 66% 30.16 in 10.0 mi West 12.7 mph 18.4 mph N/A   Partly Cloudy
3:35 PM 50.0 °F - 39.2 °F 66% 30.15 in 10.0 mi West 16.1 mph - N/A   Scattered Clouds
3:55 PM 48.2 °F - 39.2 °F 71% 30.15 in 10.0 mi West 13.8 mph 18.4 mph N/A   Partly Cloudy
4:15 PM 48.2 °F - 39.2 °F 71% 30.15 in 10.0 mi West 13.8 mph 18.4 mph N/A   Clear
4:35 PM 48.2 °F - 39.2 °F 71% 30.14 in 10.0 mi West 12.7 mph 16.1 mph N/A   Clear
4:55 PM 46.4 °F 43.5 °F 39.2 °F 76% 30.14 in 10.0 mi WNW 5.8 mph - N/A   Clear
5:15 PM 44.6 °F 43.1 °F 39.2 °F 81% 30.14 in 10.0 mi North 3.5 mph - N/A   Clear
5:35 PM 44.6 °F 42.2 °F 39.2 °F 81% 30.15 in 10.0 mi NNW 4.6 mph - N/A   Clear
5:55 PM 42.8 °F 39.3 °F 39.2 °F 87% 30.15 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:15 PM 41.0 °F 39.0 °F 39.2 °F 93% 30.15 in 10.0 mi West 3.5 mph - N/A   Clear
6:35 PM 39.2 °F 37.0 °F 37.4 °F 93% 30.15 in 10.0 mi WNW 3.5 mph - N/A   Partly Cloudy
6:55 PM 37.4 °F 34.9 °F 37.4 °F 100% 30.15 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:15 PM 37.4 °F - 35.6 °F 93% 30.15 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 39.2 °F 35.0 °F 37.4 °F 93% 30.15 in 10.0 mi WNW 5.8 mph - N/A   Clear
7:55 PM 37.4 °F - 37.4 °F 100% 30.16 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 37.4 °F 33.8 °F 35.6 °F 93% 30.17 in 10.0 mi West 4.6 mph - N/A   Clear
8:35 PM 37.4 °F 33.8 °F 35.6 °F 93% 30.17 in 10.0 mi WNW 4.6 mph - N/A   Clear
8:55 PM 35.6 °F 31.7 °F 33.8 °F 93% 30.17 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:15 PM 37.4 °F 34.9 °F 35.6 °F 93% 30.18 in 10.0 mi North 3.5 mph - N/A   Clear
9:35 PM 37.4 °F 32.8 °F 33.8 °F 87% 30.18 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
9:55 PM 37.4 °F - 35.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 37.4 °F - 35.6 °F 93% 30.19 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 33.8 °F - 32.0 °F 93% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 32.0 °F - 32.0 °F 100% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 32.0 °F - 32.0 °F 100% 30.20 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 33.8 °F 30.8 °F 32.0 °F 93% 30.21 in 10.0 mi NE 3.5 mph - N/A   Mostly Cloudy