Weather History for Petaluma, CA

Change the Weather History Date:

Thursday, December 12, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 42 °F 46 °F  
Max Temperature 57 °F 56 °F 60 °F (2010)
Min Temperature 26 °F 36 °F 26 °F (2013)
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 32 °F    
Average Humidity 77    
Maximum Humidity 100    
Minimum Humidity 38    
Precipitation  
Precipitation 0.00 in - 0.95 in (1928)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 1 mph (East)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Dec. 12, 2013 Rise Set
Actual Time 7:18 AM PST 4:50 PM PST
Civil Twilight 6:48 AM PST 5:20 PM PST
Nautical Twilight 6:15 AM PST 5:53 PM PST
Astronomical Twilight 5:43 AM PST 6:25 PM PST
Moon 1:58 PM PST (12/12) 2:49 AM PST (12/12)
Length of Visible Light 10h 31m
Length of Day
9h 32m
Waxing Gibbous, 81% of the Moon is Illuminated
Dec 12
Waxing Gibbous
Dec 17
Full
Dec 25
Last Quarter
Jan 1
New
Jan 7
First Quarter

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 30.2 °F - 28.4 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 28.4 °F - 28.4 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 28.4 °F - 28.4 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 28.4 °F - 28.4 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:35 AM 28.4 °F - 28.4 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:55 AM 28.4 °F - 26.6 °F 93% 30.25 in 9.0 mi Calm Calm - N/A   Clear
2:15 AM 26.6 °F - 26.6 °F 100% 30.24 in 8.0 mi Calm Calm - N/A   Clear
2:35 AM 28.4 °F - 28.4 °F 100% 30.24 in 9.0 mi Calm Calm - N/A   Clear
2:55 AM 28.4 °F - 28.4 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 28.4 °F - 28.4 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 28.4 °F - 28.4 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 28.4 °F - 28.4 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 30.2 °F - 28.4 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 28.4 °F - 26.6 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:55 AM 28.4 °F - 26.6 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:15 AM 28.4 °F - 28.4 °F 100% 30.24 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:35 AM 26.6 °F - 26.6 °F 100% 30.24 in 9.0 mi Calm Calm - N/A   Scattered Clouds
5:55 AM 26.6 °F - 26.6 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:15 AM 26.6 °F - 26.6 °F 100% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:35 AM 26.6 °F - 26.6 °F 100% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:55 AM 26.6 °F - 26.6 °F 100% 30.26 in 9.0 mi Calm Calm - N/A   Partly Cloudy
7:15 AM 26.6 °F 22.6 °F 26.6 °F 100% 30.27 in 7.0 mi NW 3.5 mph - N/A   Partly Cloudy
7:35 AM 28.4 °F 23.3 °F 28.4 °F 100% 30.28 in 9.0 mi NW 4.6 mph - N/A   Clear
7:55 AM 28.4 °F - 28.4 °F 100% 30.29 in 8.0 mi Calm Calm - N/A   Clear
8:15 AM 30.2 °F - 30.2 °F 100% 30.29 in 8.0 mi Calm Calm - N/A   Clear
8:35 AM 32.0 °F - 32.0 °F 100% 30.29 in 8.0 mi Calm Calm - N/A   Clear
8:55 AM 33.8 °F - 32.0 °F 93% 30.29 in 9.0 mi Calm Calm - N/A   Clear
9:15 AM 35.6 °F - 32.0 °F 87% 30.29 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 39.2 °F - 35.6 °F 87% 30.30 in 9.0 mi Calm Calm - N/A   Clear
9:55 AM 42.8 °F - 35.6 °F 76% 30.30 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 44.6 °F - 35.6 °F 71% 30.30 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 46.4 °F 43.5 °F 32.0 °F 57% 30.28 in 10.0 mi SE 5.8 mph - N/A   Clear
10:55 AM 48.2 °F - 33.8 °F 58% 30.28 in 10.0 mi ESE 5.8 mph - N/A   Clear
11:15 AM 50.0 °F - 32.0 °F 50% 30.28 in 10.0 mi SSE 4.6 mph - N/A   Clear
11:35 AM 50.0 °F - 32.0 °F 50% 30.27 in 10.0 mi Calm Calm - N/A   Clear
11:55 AM 51.8 °F - 32.0 °F 47% 30.25 in 10.0 mi SSE 5.8 mph - N/A   Clear
12:15 PM 53.6 °F - 32.0 °F 44% 30.24 in 10.0 mi SSE 6.9 mph - N/A   Clear
12:35 PM 53.6 °F - 32.0 °F 44% 30.24 in 10.0 mi SSE 6.9 mph - N/A   Clear
12:55 PM 53.6 °F - 30.2 °F 41% 30.23 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:15 PM 55.4 °F - 32.0 °F 41% 30.22 in 10.0 mi SSE 5.8 mph - N/A   Clear
1:35 PM 55.4 °F - 32.0 °F 41% 30.21 in 10.0 mi SSW 4.6 mph - N/A   Clear
1:55 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi SSE 6.9 mph - N/A   Clear
2:15 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi South 6.9 mph - N/A   Clear
2:35 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi SSE 5.8 mph - N/A   Clear
2:55 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi Calm Calm - N/A   Clear
3:15 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi ESE 3.5 mph - N/A   Clear
3:35 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi ESE 3.5 mph - N/A   Clear
3:55 PM 57.2 °F - 32.0 °F 38% 30.20 in 10.0 mi SSE 3.5 mph - N/A   Clear
4:15 PM 55.4 °F - 32.0 °F 41% 30.20 in 10.0 mi Calm Calm - N/A   Clear
4:35 PM 53.6 °F - 32.0 °F 44% 30.20 in 10.0 mi SE 3.5 mph - N/A   Clear
4:55 PM 48.2 °F - 32.0 °F 54% 30.20 in 10.0 mi Calm Calm - N/A   Clear
5:15 PM 46.4 °F 44.3 °F 32.0 °F 57% 30.21 in 10.0 mi NW 4.6 mph - N/A   Clear
5:35 PM 44.6 °F - 32.0 °F 61% 30.22 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 44.6 °F 42.2 °F 32.0 °F 61% 30.22 in 10.0 mi North 4.6 mph - N/A   Clear
6:15 PM 44.6 °F 42.2 °F 32.0 °F 61% 30.23 in 10.0 mi NNW 4.6 mph - N/A   Clear
6:35 PM 44.6 °F 42.2 °F 32.0 °F 61% 30.23 in 10.0 mi North 4.6 mph - N/A   Clear
6:55 PM 44.6 °F 43.1 °F 32.0 °F 61% 30.24 in 10.0 mi NW 3.5 mph - N/A   Clear
7:15 PM 41.0 °F - 32.0 °F 70% 30.24 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 39.2 °F - 32.0 °F 75% 30.24 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:55 PM 37.4 °F - 32.0 °F 81% 30.24 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 39.2 °F 37.0 °F 32.0 °F 75% 30.24 in 10.0 mi North 3.5 mph - N/A   Clear
8:35 PM 39.2 °F 35.9 °F 32.0 °F 75% 30.25 in 10.0 mi North 4.6 mph - N/A   Clear
8:55 PM 37.4 °F - 32.0 °F 81% 30.25 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 37.4 °F - 35.6 °F 93% 30.25 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 37.4 °F - 37.4 °F 100% 30.26 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 37.4 °F 34.9 °F 37.4 °F 100% 30.26 in 10.0 mi North 3.5 mph - N/A   Partly Cloudy
10:15 PM 41.0 °F 39.0 °F 41.0 °F 100% 30.27 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
10:35 PM 44.6 °F 42.2 °F 44.6 °F 100% 30.27 in 0.8 mi NW 4.6 mph - N/A   Overcast
10:55 PM 44.6 °F 43.1 °F 44.6 °F 100% 30.26 in 0.2 mi NNW 3.5 mph - N/A   Overcast
11:15 PM 39.2 °F - 39.2 °F 100% 30.26 in 0.2 mi Calm Calm - N/A   Overcast
11:35 PM 42.8 °F 40.1 °F 42.8 °F 100% 30.26 in 0.2 mi North 4.6 mph - N/A   Overcast
11:55 PM 42.8 °F - 42.8 °F 100% 30.26 in 0.2 mi Calm Calm - N/A   Overcast