Weather History for Petaluma, CA

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Wednesday, January 22, 2014

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 52 °F 46 °F  
Max Temperature 73 °F 56 °F 68 °F (2014)
Min Temperature 30 °F 37 °F 27 °F (2014)
Degree Days  
Heating Degree Days 14    
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 2 (Base 50)    
Moisture  
Dew Point 32 °F    
Average Humidity 66    
Maximum Humidity 100    
Minimum Humidity 18    
Precipitation  
Precipitation 0.00 in - 1.75 in (1951)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 1 mph (WNW)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 22, 2014 Rise Set
Actual Time 7:22 AM PST 5:21 PM PST
Civil Twilight 6:54 AM PST 5:50 PM PST
Nautical Twilight 6:21 AM PST 6:22 PM PST
Astronomical Twilight 5:50 AM PST 6:54 PM PST
Moon 11:53 PM PST (1/22) 10:32 AM PST (1/22)
Length of Visible Light 10h 56m
Length of Day
9h 59m
Waning Gibbous, 64% of the Moon is Illuminated
Jan 22
Waning Gibbous
Jan 23
Last Quarter
Jan 30
New
Feb 6
First Quarter
Feb 14
Full

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 35.6 °F - 26.6 °F 70% 30.20 in 10.0 mi Calm Calm - N/A   Partly Cloudy
12:35 AM 35.6 °F - 28.4 °F 75% 30.19 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 35.6 °F 31.7 °F 28.4 °F 75% 30.19 in 10.0 mi North 4.6 mph - N/A   Clear
1:15 AM 33.8 °F 30.8 °F 24.8 °F 70% 30.18 in 10.0 mi North 3.5 mph - N/A   Clear
1:35 AM 35.6 °F - 28.4 °F 75% 30.18 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:55 AM 33.8 °F - 30.2 °F 87% 30.18 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 33.8 °F - 32.0 °F 93% 30.18 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 32.0 °F - 28.4 °F 87% 30.18 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 32.0 °F - 30.2 °F 93% 30.18 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 33.8 °F - 32.0 °F 93% 30.18 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 30.2 °F - 28.4 °F 93% 30.17 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 32.0 °F - 28.4 °F 87% 30.17 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 32.0 °F - 26.6 °F 80% 30.16 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 32.0 °F - 28.4 °F 87% 30.16 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 30.2 °F - 26.6 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 32.0 °F - 28.4 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 32.0 °F - 28.4 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 30.2 °F - 28.4 °F 93% 30.15 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 32.0 °F - 28.4 °F 87% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 30.2 °F - 28.4 °F 93% 30.14 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 30.2 °F - 30.2 °F 100% 30.14 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 30.2 °F - 30.2 °F 100% 30.14 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 30.2 °F - 30.2 °F 100% 30.14 in 9.0 mi Calm Calm - N/A   Clear
7:55 AM 32.0 °F 28.7 °F 32.0 °F 100% 30.14 in 9.0 mi WNW 3.5 mph - N/A   Clear
8:15 AM 33.8 °F 30.8 °F 32.0 °F 93% 30.14 in 9.0 mi NW 3.5 mph - N/A   Clear
8:35 AM 37.4 °F 34.9 °F 33.8 °F 87% 30.14 in 10.0 mi WNW 3.5 mph - N/A   Clear
8:55 AM 41.0 °F 39.0 °F 32.0 °F 70% 30.13 in 10.0 mi West 3.5 mph - N/A   Clear
9:15 AM 44.6 °F 43.1 °F 32.0 °F 61% 30.13 in 10.0 mi NW 3.5 mph - N/A   Clear
9:35 AM 46.4 °F 44.3 °F 32.0 °F 57% 30.13 in 10.0 mi WNW 4.6 mph - N/A   Clear
9:55 AM 48.2 °F - 30.2 °F 50% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 50.0 °F - 28.4 °F 43% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 53.6 °F - 28.4 °F 38% 30.12 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 57.2 °F - 28.4 °F 33% 30.12 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 59.0 °F - 28.4 °F 31% 30.11 in 10.0 mi ESE 3.5 mph - N/A   Clear
11:35 AM 62.6 °F - 26.6 °F 26% 30.09 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:55 AM 62.6 °F - 26.6 °F 26% 30.08 in 10.0 mi South 4.6 mph - N/A   Clear
12:15 PM 64.4 °F - 28.4 °F 26% 30.07 in 10.0 mi South 3.5 mph - N/A   Clear
12:35 PM 64.4 °F - 28.4 °F 26% 30.06 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 66.2 °F - 28.4 °F 24% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:15 PM 68.0 °F - 26.6 °F 21% 30.04 in 10.0 mi Calm Calm - N/A   Clear
1:35 PM 68.0 °F - 28.4 °F 23% 30.02 in 10.0 mi SSE 3.5 mph - N/A   Clear
1:55 PM 71.6 °F - 26.6 °F 19% 30.02 in 10.0 mi Calm Calm - N/A   Clear
2:15 PM 71.6 °F - 26.6 °F 19% 30.01 in 10.0 mi Calm Calm - N/A   Clear
2:35 PM 71.6 °F - 26.6 °F 19% 30.00 in 10.0 mi Calm Calm - N/A   Clear
2:55 PM 73.4 °F - 26.6 °F 18% 29.99 in 10.0 mi WSW 4.6 mph - N/A   Clear
3:15 PM 73.4 °F - 26.6 °F 18% 29.99 in 10.0 mi Calm Calm - N/A   Clear
3:35 PM 73.4 °F - 28.4 °F 19% 29.98 in 10.0 mi Calm Calm - N/A   Clear
3:55 PM 73.4 °F - 33.8 °F 23% 29.98 in 10.0 mi West 8.1 mph - N/A   Clear
4:15 PM 71.6 °F - 35.6 °F 27% 29.98 in 10.0 mi WNW 3.5 mph - N/A   Clear
4:35 PM 68.0 °F - 35.6 °F 30% 29.98 in 10.0 mi NW 3.5 mph - N/A   Clear
4:55 PM 64.4 °F - 37.4 °F 37% 29.98 in 10.0 mi West 5.8 mph - N/A   Clear
5:15 PM 62.6 °F - 39.2 °F 42% 29.98 in 10.0 mi WNW 6.9 mph - N/A   Clear
5:35 PM 59.0 °F - 37.4 °F 45% 29.98 in 10.0 mi WNW 4.6 mph - N/A   Partly Cloudy
5:55 PM 55.4 °F - 39.2 °F 54% 29.97 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
6:15 PM 51.8 °F - 37.4 °F 58% 29.97 in 10.0 mi NNW 3.5 mph - N/A   Partly Cloudy
6:35 PM 51.8 °F - 39.2 °F 62% 29.97 in 10.0 mi NW 4.6 mph - N/A   Clear
6:55 PM 50.0 °F - 39.2 °F 66% 29.97 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
7:15 PM 50.0 °F - 41.0 °F 71% 29.96 in 10.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
7:35 PM 48.2 °F - 42.8 °F 82% 29.97 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
7:55 PM 46.4 °F 45.2 °F 41.0 °F 81% 29.97 in 10.0 mi NNW 3.5 mph - N/A   Overcast
8:15 PM 46.4 °F 45.2 °F 44.6 °F 93% 29.97 in 9.0 mi NNW 3.5 mph - N/A   Overcast
8:35 PM 44.6 °F - 41.0 °F 87% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
8:55 PM 44.6 °F 43.1 °F 37.4 °F 76% 29.96 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
9:15 PM 41.0 °F - 37.4 °F 87% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:35 PM 41.0 °F - 41.0 °F 100% 29.96 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
9:55 PM 41.0 °F - 39.2 °F 93% 29.96 in 8.0 mi Calm Calm - N/A   Overcast
10:15 PM 39.2 °F - 39.2 °F 100% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:35 PM 39.2 °F - 39.2 °F 100% 29.95 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
10:55 PM 37.4 °F - 37.4 °F 100% 29.95 in 9.0 mi Calm Calm - N/A   Overcast
11:15 PM 37.4 °F - 37.4 °F 100% 29.95 in 7.0 mi Calm Calm - N/A   Overcast
11:35 PM 37.4 °F - 37.4 °F 100% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
11:55 PM 37.4 °F - 37.4 °F 100% 29.94 in 10.0 mi Calm Calm - N/A   Overcast