Weather History for Petaluma, CA

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Thursday, April 4, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 54 °F 54 °F  
Max Temperature 60 °F 67 °F 74 °F (2011)
Min Temperature 48 °F 41 °F 34 °F (2009)
Degree Days  
Heating Degree Days 11    
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 4 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 97    
Maximum Humidity 100    
Minimum Humidity 82    
Precipitation  
Precipitation 0.63 in - 2.01 in (1941)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 5 mph (SSW)    
Max Wind Speed 15 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 04, 2013 Rise Set
Actual Time 6:50 AM PDT 7:36 PM PDT
Civil Twilight 6:23 AM PDT 8:03 PM PDT
Nautical Twilight 5:52 AM PDT 8:35 PM PDT
Astronomical Twilight 5:19 AM PDT 9:07 PM PDT
Moon 3:16 AM PDT (4/4) 2:05 PM PDT (4/4)
Length of Visible Light 13h 39m
Length of Day
12h 46m
Waning Crescent, 32% of the Moon is Illuminated
Apr 4
Waning Crescent
Apr 10
New
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 48.2 °F 48.2 °F 100% 30.04 in 5.0 mi Calm Calm - N/A   Overcast
12:35 AM 48.2 °F 48.2 °F 100% 30.04 in 5.0 mi NW 3.5 mph - N/A   Overcast
12:55 AM 48.2 °F 48.2 °F 100% 30.05 in 5.0 mi NNW 4.6 mph - N/A   Overcast
1:15 AM 48.2 °F 48.2 °F 100% 30.05 in 7.0 mi NW 4.6 mph - N/A   Overcast
1:35 AM 48.2 °F 48.2 °F 100% 30.04 in 8.0 mi NNW 5.8 mph - N/A   Overcast
1:55 AM 48.2 °F 48.2 °F 100% 30.04 in 8.0 mi NNW 4.6 mph - N/A   Overcast
2:15 AM 48.2 °F 48.2 °F 100% 30.03 in 5.0 mi North 4.6 mph - 0.03 in   Overcast
2:35 AM 48.2 °F 48.2 °F 100% 30.03 in 5.0 mi Calm Calm - 0.08 in   Overcast
2:55 AM 48.2 °F 48.2 °F 100% 30.01 in 5.0 mi Calm Calm - 0.11 in   Overcast
3:15 AM 50.0 °F 50.0 °F 100% 30.02 in 5.0 mi SW 5.8 mph - 0.06 in   Overcast
3:35 AM 50.0 °F 50.0 °F 100% 30.03 in 5.0 mi WSW 5.8 mph - 0.09 in   Overcast
3:55 AM 48.2 °F 48.2 °F 100% 30.02 in 5.0 mi NNE 4.6 mph - 0.12 in   Overcast
4:15 AM 48.2 °F 48.2 °F 100% 30.02 in 3.0 mi ENE 3.5 mph - 0.02 in   Overcast
4:35 AM 48.2 °F 48.2 °F 100% 30.02 in 3.0 mi East 3.5 mph - 0.11 in   Overcast
4:55 AM 50.0 °F 50.0 °F 100% 30.01 in 4.0 mi Calm Calm - 0.17 in   Overcast
5:15 AM 50.0 °F 50.0 °F 100% 30.01 in 3.0 mi SE 4.6 mph - 0.05 in   Overcast
5:35 AM 50.0 °F 50.0 °F 100% 30.01 in 5.0 mi East 5.8 mph - 0.09 in   Mostly Cloudy
5:55 AM 50.0 °F 50.0 °F 100% 30.01 in 7.0 mi East 4.6 mph - 0.11 in   Overcast
6:15 AM 50.0 °F 50.0 °F 100% 30.01 in 4.0 mi ESE 6.9 mph - 0.02 in   Overcast
6:35 AM 50.0 °F 50.0 °F 100% 30.02 in 5.0 mi East 5.8 mph - 0.04 in   Overcast
6:55 AM 50.0 °F 50.0 °F 100% 30.02 in 4.0 mi East 5.8 mph - 0.07 in   Overcast
7:15 AM 51.8 °F 51.8 °F 100% 30.03 in 9.0 mi ESE 4.6 mph - 0.01 in   Overcast
7:35 AM 51.8 °F 51.8 °F 100% 30.04 in 1.0 mi ESE 5.8 mph - 0.01 in   Overcast
7:55 AM 53.6 °F 53.6 °F 100% 30.04 in 3.0 mi ESE 4.6 mph - 0.01 in   Overcast
8:15 AM 53.6 °F 53.6 °F 100% 30.05 in 3.0 mi ESE 8.1 mph - N/A   Overcast
8:35 AM 53.6 °F 53.6 °F 100% 30.06 in 1.5 mi ESE 8.1 mph - 0.01 in   Overcast
8:55 AM 53.6 °F 53.6 °F 100% 30.06 in 1.2 mi ESE 5.8 mph - 0.01 in   Overcast
9:55 AM 55.4 °F 55.4 °F 100% 30.08 in 2.5 mi ESE 4.6 mph - 0.03 in   Mostly Cloudy
10:15 AM 55.4 °F 55.4 °F 100% 30.08 in 2.5 mi ESE 6.9 mph - N/A   Mostly Cloudy
10:35 AM 55.4 °F 55.4 °F 100% 30.08 in 7.0 mi ESE 5.8 mph - N/A   Overcast
10:55 AM 55.4 °F 55.4 °F 100% 30.09 in 4.0 mi ESE 4.6 mph - N/A   Mostly Cloudy
11:15 AM 55.4 °F 55.4 °F 100% 30.09 in 9.0 mi SSE 3.5 mph - N/A   Overcast
11:35 AM 55.4 °F 55.4 °F 100% 30.09 in 8.0 mi Calm Calm - N/A   Overcast
11:55 AM 57.2 °F 57.2 °F 100% 30.10 in 10.0 mi South 4.6 mph - N/A   Overcast
12:15 PM 59.0 °F 57.2 °F 94% 30.09 in 10.0 mi SSE 3.5 mph - N/A   Overcast
12:35 PM 59.0 °F 57.2 °F 94% 30.10 in 10.0 mi SSW 5.8 mph - N/A   Overcast
12:55 PM 59.0 °F 57.2 °F 94% 30.10 in 10.0 mi SSW 5.8 mph - N/A   Overcast
1:15 PM 59.0 °F 57.2 °F 94% 30.09 in 10.0 mi SW 10.4 mph - N/A   Overcast
1:35 PM 60.8 °F 57.2 °F 88% 30.09 in 10.0 mi SW 9.2 mph - N/A   Overcast
1:55 PM 59.0 °F 55.4 °F 88% 30.09 in 10.0 mi SW 11.5 mph - N/A   Overcast
2:15 PM 60.8 °F 57.2 °F 88% 30.10 in 10.0 mi SW 11.5 mph - N/A   Overcast
2:35 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi SW 9.2 mph - N/A   Overcast
2:55 PM 60.8 °F 55.4 °F 82% 30.10 in 10.0 mi SW 15.0 mph - N/A   Overcast
3:15 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi SW 11.5 mph - N/A   Overcast
3:35 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi SW 11.5 mph - N/A   Overcast
3:55 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi SW 5.8 mph - N/A   Overcast
4:15 PM 59.0 °F 55.4 °F 88% 30.11 in 10.0 mi WSW 9.2 mph - N/A   Overcast
4:35 PM 59.0 °F 55.4 °F 88% 30.11 in 10.0 mi West 8.1 mph - N/A   Overcast
4:55 PM 57.2 °F 55.4 °F 94% 30.10 in 10.0 mi SW 8.1 mph - N/A   Overcast
5:15 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi SW 8.1 mph - N/A   Overcast
5:35 PM 59.0 °F 55.4 °F 88% 30.10 in 10.0 mi WSW 9.2 mph - N/A   Overcast
5:55 PM 59.0 °F 55.4 °F 88% 30.09 in 10.0 mi West 5.8 mph - N/A   Overcast
6:15 PM 57.2 °F 55.4 °F 94% 30.09 in 10.0 mi SW 5.8 mph - N/A   Overcast
6:35 PM 57.2 °F 55.4 °F 94% 30.09 in 10.0 mi WSW 4.6 mph - N/A   Overcast
6:55 PM 57.2 °F 55.4 °F 94% 30.10 in 10.0 mi West 4.6 mph - N/A   Overcast
7:15 PM 57.2 °F 55.4 °F 94% 30.09 in 10.0 mi WSW 5.8 mph - N/A   Overcast
7:35 PM 57.2 °F 55.4 °F 94% 30.10 in 10.0 mi SW 3.5 mph - N/A   Overcast
7:55 PM 57.2 °F 55.4 °F 94% 30.10 in 10.0 mi West 6.9 mph - N/A   Overcast
8:15 PM 55.4 °F 55.4 °F 100% 30.10 in 10.0 mi West 6.9 mph - N/A   Overcast
8:35 PM 55.4 °F 55.4 °F 100% 30.10 in 2.0 mi Calm Calm - N/A   Overcast
8:55 PM 55.4 °F 55.4 °F 100% 30.11 in 4.0 mi Calm Calm - N/A   Overcast
9:15 PM 55.4 °F 55.4 °F 100% 30.11 in 1.5 mi Calm Calm - N/A   Overcast
9:35 PM 55.4 °F 55.4 °F 100% 30.12 in 3.0 mi Calm Calm - N/A   Overcast
9:55 PM 55.4 °F 55.4 °F 100% 30.13 in 9.0 mi Calm Calm - N/A   Overcast
10:15 PM 55.4 °F 55.4 °F 100% 30.12 in 10.0 mi Calm Calm - N/A   Overcast
10:35 PM 55.4 °F 55.4 °F 100% 30.13 in 4.0 mi Calm Calm - N/A   Overcast
10:55 PM 55.4 °F 55.4 °F 100% 30.13 in 10.0 mi WNW 3.5 mph - N/A   Overcast
11:15 PM 55.4 °F 55.4 °F 100% 30.14 in 7.0 mi West 5.8 mph - N/A   Overcast
11:35 PM 55.4 °F 55.4 °F 100% 30.14 in 10.0 mi West 4.6 mph - N/A   Overcast
11:55 PM 55.4 °F 55.4 °F 100% 30.14 in 10.0 mi WNW 4.6 mph - N/A   Overcast