History for Petaluma, CA

Thursday, August 9, 2012 — View Current Conditions
Thursday, August 9, 2012
« Previous Day
Next Day »
Daily Weekly Monthly Custom
  Actual Average (KAPC) Record (KAPC)
Temperature
Mean Temperature 68 °F 66 °F  
Max Temperature 91 °F 79 °F 100 °F (2002)
Min Temperature 44 °F 52 °F 49 °F (2009)
Degree Days
Heating Degree Days 0    
Month to date heating degree days  
Since 1 June heating degree days  
Since 1 July heating degree days  
Cooling Degree Days 2    
Month to date cooling degree days  
Year to date cooling degree days  
Since 1 June cooling degree days  
Growing Degree Days 18 (Base 50)    
Moisture
Dew Point 50 °F    
Average Humidity 67    
Maximum Humidity 100    
Minimum Humidity 24    
Precipitation
Precipitation 0.00 in - 0.11 in (1962)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure
Sea Level Pressure 29.90 in    
Wind
Wind Speed 3 mph (WNW)    
Max Wind Speed 12 mph    
Max Gust Speed 18 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
Daily Graph
Certify This Report
History Location
Airport:
 
Trip Planner
Search our historical database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it will be!
Date:
Radar Archive
Click to View Archived Radar Loop
This image may take a moment to generate.
Local Photos
Whispy
Palace of Fine Arts
was designed and built for the 1915 Panama-Pacific International Exposition. It was originally built of plaster and wood. It was rebuilt in 1965 and ma...
Palace of Fine Arts
was designed and built for the 1915 Panama-Pacific International Exposition. It was originally built of plaster and wood. It was rebuilt in 1965 and ma...
Visit WunderPhotos
Astronomy
May. 24, 2013 Rise Set
Actual Time 6:20 AM PDT 8:10 PM PDT
Civil Twilight 5:51 AM PDT 8:39 PM PDT
Nautical Twilight 5:16 AM PDT 9:13 PM PDT
Astronomical Twilight 4:39 AM PDT 9:50 PM PDT
Moon No Moon Rise 1:59 PM PDT (8/9)
Length Of Visible Light 14h 47m
Length of Day
13h 50m
Waning Gibbous, 50% of the Moon is Illuminated
Aug 9
Waning Gibbous
Aug 17
New
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Visit Astronomy
Hourly Observations
Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 53.6 °F - 50.0 °F 88% 29.95 in 5.0 mi NNW 3.5 mph - N/A   Overcast
12:35 AM 53.6 °F - 50.0 °F 88% 29.95 in 10.0 mi NNW 3.5 mph - N/A   Overcast
12:55 AM 53.6 °F - 50.0 °F 88% 29.95 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:15 AM 51.8 °F - 48.2 °F 88% 29.94 in 8.0 mi WNW 3.5 mph - N/A   Overcast
1:35 AM 50.0 °F - 48.2 °F 94% 29.94 in 9.0 mi Calm Calm - N/A   Overcast
1:55 AM 50.0 °F - 48.2 °F 94% 29.94 in 9.0 mi Calm Calm - N/A   Overcast
2:15 AM 50.0 °F - 48.2 °F 94% 29.93 in 9.0 mi Calm Calm - N/A   Overcast
2:35 AM 50.0 °F - 48.2 °F 94% 29.93 in 8.0 mi Calm Calm - N/A   Overcast
2:55 AM 48.2 °F - 48.2 °F 100% 29.93 in 8.0 mi Calm Calm - N/A   Overcast
3:15 AM 50.0 °F - 48.2 °F 94% 29.93 in 8.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
3:35 AM 50.0 °F - 48.2 °F 94% 29.93 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
3:55 AM 48.2 °F - 48.2 °F 100% 29.92 in 8.0 mi WNW 3.5 mph - N/A   Scattered Clouds
4:15 AM 48.2 °F - 46.4 °F 93% 29.92 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 46.4 °F - 46.4 °F 100% 29.93 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
4:55 AM 46.4 °F - 44.6 °F 93% 29.93 in 9.0 mi Calm Calm - N/A   Overcast
5:15 AM 46.4 °F - 46.4 °F 100% 29.92 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:35 AM 44.6 °F - 44.6 °F 100% 29.93 in 9.0 mi Calm Calm - N/A   Overcast
5:55 AM 46.4 °F - 44.6 °F 93% 29.93 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:15 AM 46.4 °F 45.2 °F 46.4 °F 100% 29.93 in 9.0 mi NW 3.5 mph - N/A   Scattered Clouds
6:35 AM 46.4 °F - 46.4 °F 100% 29.94 in 7.0 mi Calm Calm - N/A   Clear
6:55 AM 46.4 °F - 46.4 °F 100% 29.94 in 7.0 mi Calm Calm - N/A   Clear
7:15 AM 48.2 °F - 48.2 °F 100% 29.95 in 8.0 mi WNW 4.6 mph - N/A   Clear
7:35 AM 50.0 °F - 48.2 °F 94% 29.95 in 7.0 mi WNW 3.5 mph - N/A   Clear
7:55 AM 53.6 °F - 48.2 °F 82% 29.95 in 9.0 mi West 4.6 mph - N/A   Clear
8:15 AM 55.4 °F - 50.0 °F 82% 29.95 in 10.0 mi WNW 4.6 mph - N/A   Clear
8:35 AM 57.2 °F - 50.0 °F 77% 29.96 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 59.0 °F - 50.0 °F 72% 29.96 in 10.0 mi Calm Calm - N/A   Clear
9:15 AM 62.6 °F - 51.8 °F 68% 29.96 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 64.4 °F - 53.6 °F 68% 29.95 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 66.2 °F - 53.6 °F 64% 29.95 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 68.0 °F - 53.6 °F 60% 29.95 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 71.6 °F - 53.6 °F 53% 29.95 in 10.0 mi SSW 3.5 mph - N/A   Clear
10:55 AM 73.4 °F - 53.6 °F 50% 29.94 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 75.2 °F - 53.6 °F 47% 29.94 in 10.0 mi West 6.9 mph - N/A   Clear
11:35 AM 78.8 °F - 53.6 °F 42% 29.94 in 10.0 mi West 6.9 mph - N/A   Clear
11:55 AM 82.4 °F - 51.8 °F 35% 29.93 in 10.0 mi West 5.8 mph - N/A   Clear
12:15 PM 84.2 °F - 51.8 °F 33% 29.92 in 10.0 mi WSW 4.6 mph - N/A   Clear
12:35 PM 84.2 °F - 51.8 °F 33% 29.91 in 10.0 mi West 4.6 mph - N/A   Clear
12:55 PM 86.0 °F - 53.6 °F 33% 29.91 in 10.0 mi West 3.5 mph - N/A   Clear
1:15 PM 89.6 °F - 51.8 °F 27% 29.90 in 10.0 mi West 4.6 mph - N/A   Clear
1:35 PM 89.6 °F - 50.0 °F 26% 29.89 in 10.0 mi Calm Calm - N/A   Clear
1:55 PM 91.4 °F - 53.6 °F 28% 29.89 in 10.0 mi WNW 6.9 mph - N/A   Clear
2:15 PM 91.4 °F - 53.6 °F 28% 29.88 in 10.0 mi West 11.5 mph - N/A   Clear
2:35 PM 91.4 °F - 51.8 °F 26% 29.88 in 10.0 mi West 9.2 mph - N/A   Clear
2:55 PM 91.4 °F - 51.8 °F 26% 29.88 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:15 PM 91.4 °F - 50.0 °F 24% 29.87 in 10.0 mi WNW 11.5 mph - N/A   Clear
3:35 PM 89.6 °F - 48.2 °F 24% 29.87 in 10.0 mi WNW 9.2 mph - N/A   Clear
3:55 PM 89.6 °F - 50.0 °F 26% 29.86 in 10.0 mi NW 8.1 mph - N/A   Clear
4:15 PM 86.0 °F - 53.6 °F 33% 29.86 in 10.0 mi NW 8.1 mph - N/A   Clear
4:35 PM 84.2 °F - 53.6 °F 35% 29.86 in 10.0 mi NW 8.1 mph - N/A   Clear
4:55 PM 82.4 °F - 53.6 °F 37% 29.86 in 10.0 mi NW 6.9 mph 18.4 mph N/A   Clear
5:15 PM 80.6 °F - 53.6 °F 39% 29.85 in 10.0 mi NW 8.1 mph - N/A   Clear
5:35 PM 80.6 °F - 53.6 °F 39% 29.85 in 10.0 mi NW 6.9 mph - N/A   Clear
5:55 PM 78.8 °F - 55.4 °F 44% 29.85 in 10.0 mi NW 5.8 mph - N/A   Clear
6:15 PM 77.0 °F - 53.6 °F 44% 29.84 in 10.0 mi NW 5.8 mph - N/A   Clear
6:35 PM 75.2 °F - 55.4 °F 50% 29.84 in 10.0 mi NW 6.9 mph - N/A   Clear
6:55 PM 73.4 °F - 53.6 °F 50% 29.84 in 10.0 mi NW 8.1 mph - N/A   Clear
7:15 PM 69.8 °F - 53.6 °F 56% 29.83 in 10.0 mi NW 6.9 mph - N/A   Clear
7:35 PM 66.2 °F - 53.6 °F 64% 29.83 in 10.0 mi NW 4.6 mph - N/A   Clear
7:55 PM 64.4 °F - 51.8 °F 64% 29.83 in 9.0 mi NNW 6.9 mph - N/A   Clear
8:15 PM 62.6 °F - 51.8 °F 68% 29.84 in 10.0 mi NW 5.8 mph - N/A   Clear
8:35 PM 60.8 °F - 50.0 °F 68% 29.84 in 10.0 mi NNW 5.8 mph - N/A   Clear
8:55 PM 59.0 °F - 50.0 °F 72% 29.84 in 10.0 mi NNW 6.9 mph - N/A   Scattered Clouds
9:35 PM 57.2 °F - 50.0 °F 77% 29.85 in 10.0 mi NW 5.8 mph - N/A   Mostly Cloudy
9:55 PM 57.2 °F - 50.0 °F 77% 29.85 in 9.0 mi NW 4.6 mph - N/A   Mostly Cloudy
10:15 PM 57.2 °F - 50.0 °F 77% 29.85 in 9.0 mi NW 5.8 mph - N/A   Mostly Cloudy
10:35 PM 55.4 °F - 50.0 °F 82% 29.85 in 8.0 mi NW 5.8 mph - N/A   Mostly Cloudy
10:55 PM 55.4 °F - 50.0 °F 82% 29.85 in 8.0 mi Calm Calm - N/A   Overcast
11:15 PM 55.4 °F - 50.0 °F 82% 29.85 in 8.0 mi Calm Calm - N/A   Overcast
11:35 PM 53.6 °F - 50.0 °F 88% 29.86 in 7.0 mi Calm Calm - N/A   Overcast
11:55 PM 53.6 °F - 48.2 °F 82% 29.86 in 8.0 mi Calm Calm - N/A   Overcast
Show full METARS | METAR FAQ | Comma Delimited File