Weather History for Petaluma, CA

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Wednesday, May 1, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 66 °F 57 °F  
Max Temperature 84 °F 70 °F 89 °F (2013)
Min Temperature 48 °F 43 °F 34 °F (2011)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days  
Since 1 July heating degree days  
Cooling Degree Days 1    
Month to date cooling degree days  
Year to date cooling degree days  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 30 °F    
Average Humidity 29    
Maximum Humidity 71    
Minimum Humidity 11    
Precipitation  
Precipitation 0.00 in - 0.60 in (1977)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 6 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 01, 2013 Rise Set
Actual Time 6:13 AM PDT 8:02 PM PDT
Civil Twilight 5:44 AM PDT 8:30 PM PDT
Nautical Twilight 5:10 AM PDT 9:05 PM PDT
Astronomical Twilight 4:33 AM PDT 9:42 PM PDT
Moon 1:15 AM PDT (5/1) 11:57 AM PDT (5/1)
Length of Visible Light 14h 45m
Length of Day
13h 48m
Waning Gibbous, 58% of the Moon is Illuminated
May 1
Waning Gibbous
May 2
Last Quarter
May 9
New
May 17
First Quarter
May 24
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 71.6 °F 17.6 °F 13% 29.85 in 10.0 mi NW 8.1 mph 24.2 mph N/A   Clear
12:35 AM 71.6 °F 17.6 °F 13% 29.86 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Clear
12:55 AM 71.6 °F 17.6 °F 13% 29.86 in 10.0 mi West 6.9 mph 21.9 mph N/A   Clear
1:15 AM 69.8 °F 15.8 °F 13% 29.87 in 10.0 mi West 6.9 mph 17.3 mph N/A   Clear
1:35 AM 68.0 °F 15.8 °F 13% 29.87 in 10.0 mi West 12.7 mph 18.4 mph N/A   Clear
1:55 AM 68.0 °F 17.6 °F 15% 29.88 in 10.0 mi NW 9.2 mph 16.1 mph N/A   Clear
2:15 AM 69.8 °F 17.6 °F 14% 29.87 in 10.0 mi NW 5.8 mph - N/A   Clear
2:35 AM 71.6 °F 14.0 °F 11% 29.87 in 10.0 mi WNW 6.9 mph - N/A   Clear
2:55 AM 64.4 °F 17.6 °F 16% 29.88 in 10.0 mi SW 5.8 mph - N/A   Clear
3:15 AM 60.8 °F 19.4 °F 20% 29.88 in 10.0 mi WSW 6.9 mph - N/A   Clear
3:35 AM 59.0 °F 23.0 °F 25% 29.89 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 53.6 °F 26.6 °F 35% 29.89 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 55.4 °F 23.0 °F 29% 29.90 in 10.0 mi SW 4.6 mph - N/A   Clear
4:35 AM 60.8 °F 23.0 °F 23% 29.89 in 10.0 mi SSW 4.6 mph - N/A   Clear
4:55 AM 59.0 °F 23.0 °F 25% 29.90 in 10.0 mi NW 4.6 mph - N/A   Clear
5:15 AM 60.8 °F 21.2 °F 22% 29.90 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 59.0 °F 24.8 °F 27% 29.91 in 10.0 mi North 3.5 mph - N/A   Clear
5:55 AM 53.6 °F 24.8 °F 33% 29.92 in 10.0 mi SW 4.6 mph - N/A   Clear
6:15 AM 53.6 °F 24.8 °F 33% 29.93 in 10.0 mi NNE 4.6 mph - N/A   Clear
6:35 AM 53.6 °F 24.8 °F 33% 29.94 in 10.0 mi East 3.5 mph - N/A   Clear
7:15 AM 53.6 °F 32.0 °F 44% 29.96 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 55.4 °F 33.8 °F 44% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 59.0 °F 37.4 °F 45% 29.97 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 62.6 °F 32.0 °F 32% 29.98 in 10.0 mi South 4.6 mph - N/A   Clear
8:35 AM 66.2 °F 32.0 °F 28% 29.98 in 9.0 mi WSW 3.5 mph - N/A   Clear
9:15 AM 71.6 °F 28.4 °F 20% 29.99 in 10.0 mi SW 5.8 mph - N/A   Clear
9:35 AM 73.4 °F 24.8 °F 16% 30.00 in 10.0 mi WSW 4.6 mph - N/A   Clear
9:55 AM 73.4 °F 24.8 °F 16% 30.00 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 75.2 °F 23.0 °F 14% 30.01 in 10.0 mi West 3.5 mph - N/A   Clear
10:35 AM 75.2 °F 26.6 °F 17% 30.01 in 10.0 mi WSW 4.6 mph - N/A   Clear
10:55 AM 77.0 °F 26.6 °F 16% 30.01 in 10.0 mi North 4.6 mph - N/A   Clear
11:15 AM 77.0 °F 30.2 °F 18% 30.01 in 10.0 mi NNE 6.9 mph - N/A   Clear
11:35 AM 78.8 °F 30.2 °F 17% 30.02 in 10.0 mi North 13.8 mph 21.9 mph N/A   Clear
11:55 AM 78.8 °F 26.6 °F 15% 30.02 in 10.0 mi North 9.2 mph - N/A   Clear
12:15 PM 80.6 °F 30.2 °F 16% 30.02 in 10.0 mi North 4.6 mph - N/A   Clear
12:35 PM 80.6 °F 32.0 °F 17% 30.02 in 10.0 mi NE 4.6 mph - N/A   Clear
12:55 PM 80.6 °F 30.2 °F 16% 30.02 in 10.0 mi NE 9.2 mph 16.1 mph N/A   Clear
1:15 PM 82.4 °F 28.4 °F 14% 30.02 in 10.0 mi ENE 12.7 mph - N/A   Clear
1:35 PM 82.4 °F 28.4 °F 14% 30.02 in 9.0 mi North 9.2 mph - N/A   Clear
1:55 PM 82.4 °F 28.4 °F 14% 30.02 in 10.0 mi NE 12.7 mph 18.4 mph N/A   Clear
2:15 PM 82.4 °F 28.4 °F 14% 30.02 in 10.0 mi NNE 3.5 mph - N/A   Clear
2:35 PM 84.2 °F 28.4 °F 13% 30.01 in 10.0 mi NE 11.5 mph 18.4 mph N/A   Clear
2:55 PM 84.2 °F 28.4 °F 13% 30.02 in 10.0 mi NE 10.4 mph - N/A   Clear
3:15 PM 84.2 °F 28.4 °F 13% 30.02 in 10.0 mi East 6.9 mph - N/A   Clear
3:35 PM 84.2 °F 33.8 °F 16% 30.01 in 10.0 mi NNW 8.1 mph - N/A   Clear
3:55 PM 80.6 °F 44.6 °F 28% 30.01 in 10.0 mi West 13.8 mph 17.3 mph N/A   Clear
4:15 PM 77.0 °F 44.6 °F 32% 30.02 in 10.0 mi West 11.5 mph - N/A   Clear
4:35 PM 75.2 °F 44.6 °F 34% 30.02 in 10.0 mi WNW 11.5 mph 17.3 mph N/A   Clear
4:55 PM 75.2 °F 42.8 °F 31% 30.03 in 10.0 mi West 10.4 mph - N/A   Clear
5:15 PM 73.4 °F 44.6 °F 36% 30.03 in 10.0 mi West 11.5 mph - N/A   Clear
5:35 PM 71.6 °F 44.6 °F 38% 30.03 in 10.0 mi WNW 8.1 mph - N/A   Clear
5:55 PM 71.6 °F 42.8 °F 35% 30.04 in 10.0 mi WNW 8.1 mph - N/A   Clear
6:15 PM 69.8 °F 35.6 °F 28% 30.04 in 10.0 mi WNW 9.2 mph - N/A   Clear
6:35 PM 68.0 °F 37.4 °F 33% 30.05 in 10.0 mi NW 5.8 mph - N/A   Clear
6:55 PM 68.0 °F 37.4 °F 33% 30.05 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:15 PM 66.2 °F 37.4 °F 35% 30.05 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:35 PM 64.4 °F 35.6 °F 34% 30.06 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:55 PM 60.8 °F 35.6 °F 39% 30.07 in 10.0 mi North 5.8 mph - N/A   Clear
8:15 PM 59.0 °F 35.6 °F 42% 30.07 in 10.0 mi North 3.5 mph - N/A   Clear
8:35 PM 57.2 °F 35.6 °F 44% 30.08 in 10.0 mi North 4.6 mph - N/A   Partly Cloudy
8:55 PM 57.2 °F 35.6 °F 44% 30.08 in 10.0 mi North 5.8 mph - N/A   Scattered Clouds
9:15 PM 57.2 °F 33.8 °F 41% 30.09 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
9:35 PM 55.4 °F 35.6 °F 47% 30.09 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
9:55 PM 53.6 °F 35.6 °F 51% 30.10 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
10:15 PM 55.4 °F 39.2 °F 54% 30.10 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
10:35 PM 51.8 °F 39.2 °F 62% 30.10 in 10.0 mi NW 4.6 mph - N/A   Mostly Cloudy
10:55 PM 51.8 °F 37.4 °F 58% 30.10 in 10.0 mi NNW 4.6 mph - N/A   Overcast
11:15 PM 51.8 °F 39.2 °F 62% 30.10 in 7.0 mi NNW 4.6 mph - N/A   Overcast
11:35 PM 48.2 °F 37.4 °F 66% 30.10 in 10.0 mi NNW 3.5 mph - N/A   Overcast
11:55 PM 50.0 °F 41.0 °F 71% 30.10 in 10.0 mi NW 5.8 mph - N/A   Overcast