Weather History for Petaluma, CA

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Sunday, October 28, 2012

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 63 °F 56 °F  
Max Temperature 78 °F 71 °F 88 °F (2003)
Min Temperature 48 °F 41 °F 33 °F (2004)
Degree Days  
Heating Degree Days 2    
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 13 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 84    
Maximum Humidity 100    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in - 1.01 in (1981)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 2 mph (NW)    
Max Wind Speed 12 mph    
Max Gust Speed 16 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 28, 2012 Rise Set
Actual Time 7:32 AM PDT 6:14 PM PDT
Civil Twilight 7:05 AM PDT 6:41 PM PDT
Nautical Twilight 6:34 AM PDT 7:13 PM PDT
Astronomical Twilight 6:03 AM PDT 7:43 PM PDT
Moon 5:35 PM PDT (10/28) 6:31 AM PDT (10/28)
Length of Visible Light 11h 36m
Length of Day
10h 41m
Waxing Gibbous, 99% of the Moon is Illuminated
Oct 28
Waxing Gibbous
Oct 29
Full
Nov 6
Last Quarter
Nov 13
New
Nov 20
First 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 53.6 °F 51.8 °F 94% 30.00 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 53.6 °F 53.6 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 53.6 °F 51.8 °F 94% 30.00 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 55.4 °F 53.6 °F 94% 30.00 in 10.0 mi NNW 4.6 mph - N/A   Clear
1:35 AM 57.2 °F 53.6 °F 88% 30.00 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 51.8 °F 51.8 °F 100% 30.00 in 10.0 mi North 3.5 mph - N/A   Clear
2:15 AM 53.6 °F 51.8 °F 94% 30.00 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 53.6 °F 53.6 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 53.6 °F 53.6 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 50.0 °F 50.0 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 50.0 °F 50.0 °F 100% 30.00 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 50.0 °F 50.0 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 50.0 °F 50.0 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 50.0 °F 50.0 °F 100% 30.00 in 9.0 mi Calm Calm - N/A   Clear
4:55 AM 48.2 °F 48.2 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:15 AM 50.0 °F 50.0 °F 100% 29.99 in 8.0 mi NW 3.5 mph - N/A   Scattered Clouds
5:35 AM 50.0 °F 50.0 °F 100% 29.99 in 7.0 mi NW 4.6 mph - N/A   Clear
5:55 AM 50.0 °F 50.0 °F 100% 29.99 in 8.0 mi NNW 3.5 mph - N/A   Clear
6:15 AM 50.0 °F 50.0 °F 100% 29.99 in 9.0 mi Calm Calm - N/A   Clear
6:55 AM 48.2 °F 48.2 °F 100% 29.99 in 0.5 mi Calm Calm - N/A   Mostly Cloudy
7:15 AM 50.0 °F 50.0 °F 100% 29.98 in 6.0 mi Calm Calm - N/A   Partly Cloudy
7:55 AM 48.2 °F 48.2 °F 100% 29.99 in 1.2 mi Calm Calm - N/A   Clear
8:15 AM 50.0 °F 50.0 °F 100% 30.00 in 7.0 mi Calm Calm - N/A   Clear
8:35 AM 53.6 °F 53.6 °F 100% 30.01 in 8.0 mi Calm Calm - N/A   Clear
8:55 AM 53.6 °F 53.6 °F 100% 30.01 in 9.0 mi Calm Calm - N/A   Clear
9:15 AM 57.2 °F 57.2 °F 100% 30.01 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 57.2 °F 55.4 °F 94% 30.02 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 59.0 °F 57.2 °F 94% 30.02 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 62.6 °F 57.2 °F 82% 30.01 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 64.4 °F 57.2 °F 77% 30.02 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 66.2 °F 57.2 °F 73% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 66.2 °F 57.2 °F 73% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:35 AM 68.0 °F 57.2 °F 68% 30.01 in 10.0 mi Calm Calm - N/A   Clear
11:55 AM 71.6 °F 57.2 °F 60% 30.01 in 10.0 mi Calm Calm - N/A   Clear
12:15 PM 73.4 °F 57.2 °F 57% 30.00 in 10.0 mi South 3.5 mph - N/A   Clear
12:35 PM 75.2 °F 55.4 °F 50% 30.00 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 75.2 °F 55.4 °F 50% 29.99 in 10.0 mi Calm Calm - N/A   Clear
1:15 PM 77.0 °F 55.4 °F 47% 29.99 in 10.0 mi Calm Calm - N/A   Clear
1:35 PM 77.0 °F 55.4 °F 47% 29.98 in 10.0 mi Calm Calm - N/A   Clear
1:55 PM 77.0 °F 55.4 °F 47% 29.97 in 10.0 mi WSW 4.6 mph - N/A   Clear
2:15 PM 78.8 °F 57.2 °F 47% 29.97 in 10.0 mi West 10.4 mph - N/A   Clear
2:35 PM 77.0 °F 57.2 °F 50% 29.96 in 10.0 mi West 9.2 mph - N/A   Clear
2:55 PM 77.0 °F 55.4 °F 47% 29.96 in 10.0 mi West 9.2 mph - N/A   Clear
3:15 PM 78.8 °F 55.4 °F 44% 29.96 in 10.0 mi West 10.4 mph - N/A   Clear
3:35 PM 75.2 °F 55.4 °F 50% 29.97 in 10.0 mi West 11.5 mph - N/A   Clear
3:55 PM 73.4 °F 55.4 °F 53% 29.97 in 10.0 mi WNW 9.2 mph 16.1 mph N/A   Clear
4:15 PM 71.6 °F 55.4 °F 57% 29.97 in 10.0 mi NW 6.9 mph - N/A   Clear
4:35 PM 71.6 °F 55.4 °F 57% 29.97 in 10.0 mi NW 4.6 mph - N/A   Clear
4:55 PM 69.8 °F 55.4 °F 60% 29.97 in 10.0 mi NW 6.9 mph - N/A   Clear
5:15 PM 68.0 °F 55.4 °F 64% 29.97 in 10.0 mi WNW 10.4 mph - N/A   Clear
5:35 PM 64.4 °F 55.4 °F 73% 29.98 in 10.0 mi WNW 6.9 mph - N/A   Clear
5:55 PM 59.0 °F 55.4 °F 88% 29.99 in 10.0 mi NW 8.1 mph 16.1 mph N/A   Clear
6:15 PM 57.2 °F 55.4 °F 94% 30.00 in 10.0 mi WNW 5.8 mph - N/A   Clear
6:35 PM 57.2 °F 55.4 °F 94% 29.99 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:15 PM 53.6 °F 53.6 °F 100% 30.00 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:55 PM 55.4 °F 53.6 °F 94% 30.00 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 55.4 °F 53.6 °F 94% 29.99 in 10.0 mi NW 3.5 mph - N/A   Clear
8:35 PM 53.6 °F 53.6 °F 100% 30.00 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:55 PM 53.6 °F 53.6 °F 100% 30.01 in 10.0 mi NNW 5.8 mph - N/A   Clear
9:15 PM 53.6 °F 53.6 °F 100% 30.02 in 7.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
9:55 PM 53.6 °F 53.6 °F 100% 30.02 in 0.5 mi NNW 4.6 mph - N/A   Overcast
10:15 PM 53.6 °F 53.6 °F 100% 30.03 in 0.2 mi NNW 4.6 mph - N/A   Overcast
10:35 PM 53.6 °F 53.6 °F 100% 30.03 in 0.2 mi Calm Calm - N/A   Overcast
10:55 PM 53.6 °F 53.6 °F 100% 30.04 in 0.2 mi Calm Calm - N/A   Overcast
11:15 PM 53.6 °F 53.6 °F 100% 30.03 in 0.2 mi Calm Calm - N/A   Overcast
11:35 PM 53.6 °F 53.6 °F 100% 30.04 in 0.2 mi Calm Calm - N/A   Overcast
11:55 PM 53.6 °F 53.6 °F 100% 30.04 in 0.2 mi ENE 3.5 mph - N/A   Overcast