Weather History for Petaluma, CA

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Monday, December 30, 2013

  Actual Average (KAPC) Record (KAPC)
Temperature  
Mean Temperature 45 °F 45 °F  
Max Temperature 62 °F 54 °F 63 °F (2013)
Min Temperature 28 °F 36 °F 27 °F (2013)
Degree Days  
Heating Degree Days 20    
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 71    
Maximum Humidity 100    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in - 1.43 in (2005)
Month to date precipitation  
Year to date precipitation  
Since 1 July precipitation  
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 2 mph (SSE)    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 30, 2013 Rise Set
Actual Time 7:26 AM PST 4:59 PM PST
Civil Twilight 6:57 AM PST 5:29 PM PST
Nautical Twilight 6:24 AM PST 6:02 PM PST
Astronomical Twilight 5:52 AM PST 6:34 PM PST
Moon 5:23 AM PST (12/30) 3:37 PM PST (12/30)
Length of Visible Light 10h 31m
Length of Day
9h 32m
Waning Crescent, 4% of the Moon is Illuminated
Dec 30
Waning Crescent
Jan 1
New
Jan 7
First Quarter
Jan 15
Full
Jan 23
Last 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 32.0 °F - 28.4 °F 87% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:35 AM 32.0 °F - 28.4 °F 87% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
12:55 AM 32.0 °F - 28.4 °F 87% 30.21 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:15 AM 32.0 °F - 28.4 °F 87% 30.20 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:35 AM 32.0 °F - 28.4 °F 87% 30.20 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:55 AM 32.0 °F - 26.6 °F 80% 30.21 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:15 AM 30.2 °F - 26.6 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:35 AM 32.0 °F - 26.6 °F 80% 30.22 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:55 AM 32.0 °F - 26.6 °F 80% 30.22 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:15 AM 32.0 °F - 28.4 °F 87% 30.23 in 10.0 mi Calm Calm - N/A   Scattered Clouds
3:35 AM 30.2 °F - 26.6 °F 86% 30.24 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:55 AM 30.2 °F - 26.6 °F 86% 30.23 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:15 AM 30.2 °F - 28.4 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 AM 30.2 °F - 28.4 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:55 AM 30.2 °F - 28.4 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:15 AM 28.4 °F - 28.4 °F 100% 30.22 in 9.0 mi Calm Calm - N/A   Scattered Clouds
5:35 AM 30.2 °F - 28.4 °F 93% 30.22 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:55 AM 28.4 °F - 28.4 °F 100% 30.22 in 9.0 mi Calm Calm - N/A   Overcast
6:15 AM 28.4 °F - 28.4 °F 100% 30.23 in 9.0 mi Calm Calm - N/A   Overcast
6:35 AM 28.4 °F - 28.4 °F 100% 30.24 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
6:55 AM 30.2 °F 26.7 °F 30.2 °F 100% 30.25 in 10.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
7:15 AM 28.4 °F 24.6 °F 28.4 °F 100% 30.25 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
7:35 AM 28.4 °F - 28.4 °F 100% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:55 AM 28.4 °F - 28.4 °F 100% 30.26 in 6.0 mi Calm Calm - N/A   Clear
8:15 AM 28.4 °F - 28.4 °F 100% 30.26 in 6.0 mi Calm Calm - N/A   Clear
8:35 AM 32.0 °F - 32.0 °F 100% 30.26 in 9.0 mi Calm Calm - N/A   Clear
8:55 AM 33.8 °F - 32.0 °F 93% 30.26 in 9.0 mi Calm Calm - N/A   Clear
9:15 AM 37.4 °F - 32.0 °F 81% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 42.8 °F 40.1 °F 33.8 °F 70% 30.27 in 10.0 mi SE 4.6 mph - N/A   Clear
9:55 AM 48.2 °F - 35.6 °F 62% 30.27 in 8.0 mi SE 6.9 mph - N/A   Clear
10:15 AM 50.0 °F - 33.8 °F 54% 30.27 in 8.0 mi SSE 11.5 mph - N/A   Clear
10:35 AM 51.8 °F - 33.8 °F 50% 30.27 in 8.0 mi SSE 10.4 mph - N/A   Clear
10:55 AM 53.6 °F - 33.8 °F 47% 30.27 in 9.0 mi SSE 11.5 mph - N/A   Clear
11:15 AM 55.4 °F - 33.8 °F 44% 30.27 in 8.0 mi SSE 12.7 mph - N/A   Clear
11:35 AM 55.4 °F - 33.8 °F 44% 30.26 in 9.0 mi SSE 11.5 mph - N/A   Clear
11:55 AM 57.2 °F - 33.8 °F 41% 30.25 in 10.0 mi SSE 9.2 mph - N/A   Clear
12:15 PM 57.2 °F - 33.8 °F 41% 30.24 in 9.0 mi SE 9.2 mph - N/A   Clear
12:35 PM 59.0 °F - 35.6 °F 42% 30.24 in 8.0 mi SSE 9.2 mph - N/A   Clear
12:55 PM 59.0 °F - 35.6 °F 42% 30.23 in 8.0 mi SSE 6.9 mph - N/A   Clear
1:15 PM 59.0 °F - 35.6 °F 42% 30.23 in 9.0 mi South 9.2 mph - N/A   Clear
1:35 PM 60.8 °F - 35.6 °F 39% 30.22 in 8.0 mi SSE 6.9 mph - N/A   Clear
1:55 PM 59.0 °F - 35.6 °F 42% 30.22 in 8.0 mi SSE 8.1 mph - N/A   Clear
2:15 PM 59.0 °F - 35.6 °F 42% 30.22 in 8.0 mi SSE 8.1 mph - N/A   Clear
2:35 PM 60.8 °F - 35.6 °F 39% 30.21 in 8.0 mi SSE 8.1 mph - N/A   Clear
2:55 PM 62.6 °F - 35.6 °F 37% 30.21 in 8.0 mi SSE 6.9 mph - N/A   Clear
3:15 PM 60.8 °F - 35.6 °F 39% 30.22 in 8.0 mi SSE 6.9 mph - N/A   Clear
3:35 PM 59.0 °F - 37.4 °F 45% 30.22 in 8.0 mi SSE 6.9 mph - N/A   Clear
3:55 PM 57.2 °F - 35.6 °F 44% 30.22 in 7.0 mi SSE 6.9 mph - N/A   Clear
4:15 PM 57.2 °F - 35.6 °F 44% 30.23 in 7.0 mi SE 4.6 mph - N/A   Clear
4:35 PM 57.2 °F - 35.6 °F 44% 30.23 in 7.0 mi SSE 5.8 mph - N/A   Clear
4:55 PM 53.6 °F - 37.4 °F 54% 30.22 in 6.0 mi ESE 3.5 mph - N/A   Clear
5:15 PM 51.8 °F - 37.4 °F 58% 30.22 in 7.0 mi East 3.5 mph - N/A   Scattered Clouds
5:35 PM 50.0 °F - 35.6 °F 58% 30.23 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
5:55 PM 50.0 °F - 35.6 °F 58% 30.23 in 9.0 mi East 3.5 mph - N/A   Mostly Cloudy
6:15 PM 48.2 °F - 35.6 °F 62% 30.23 in 9.0 mi SE 4.6 mph - N/A   Overcast
6:35 PM 48.2 °F - 35.6 °F 62% 30.23 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
6:55 PM 46.4 °F - 33.8 °F 62% 30.25 in 9.0 mi Calm Calm - N/A   Overcast
7:15 PM 44.6 °F 43.1 °F 32.0 °F 61% 30.25 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
7:35 PM 44.6 °F - 32.0 °F 61% 30.25 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:55 PM 41.0 °F - 32.0 °F 70% 30.26 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:15 PM 42.8 °F - 32.0 °F 66% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
8:35 PM 42.8 °F 40.1 °F 32.0 °F 66% 30.27 in 9.0 mi NW 4.6 mph - N/A   Overcast
8:55 PM 42.8 °F 41.1 °F 32.0 °F 66% 30.27 in 9.0 mi NW 3.5 mph - N/A   Overcast
9:15 PM 44.6 °F 43.1 °F 32.0 °F 61% 30.26 in 8.0 mi WNW 3.5 mph - N/A   Overcast
9:35 PM 41.0 °F 39.0 °F 32.0 °F 70% 30.27 in 7.0 mi NW 3.5 mph - N/A   Overcast
9:55 PM 41.0 °F 39.0 °F 32.0 °F 70% 30.27 in 8.0 mi West 3.5 mph - N/A   Overcast
10:15 PM 37.4 °F 34.9 °F 32.0 °F 81% 30.27 in 7.0 mi North 3.5 mph - N/A   Overcast
10:35 PM 35.6 °F - 32.0 °F 87% 30.27 in 8.0 mi Calm Calm - N/A   Overcast
10:55 PM 35.6 °F - 32.0 °F 87% 30.27 in 7.0 mi Calm Calm - N/A   Overcast
11:15 PM 35.6 °F - 32.0 °F 87% 30.27 in 8.0 mi Calm Calm - N/A   Overcast
11:35 PM 35.6 °F - 32.0 °F 87% 30.27 in 7.0 mi Calm Calm - N/A   Overcast
11:55 PM 35.6 °F - 32.0 °F 87% 30.27 in 7.0 mi Calm Calm - N/A   Overcast