Windsor, CA

4:48 PM PST on January 17, 2017 (GMT -0800)
Sonoma County

Weather History for KSTS - December, 2011

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Sunday, December 18, 2011

  Actual Average Record
Temperature  
Mean Temperature 42 °F 46 °F  
Max Temperature 53 °F 56 °F 64 °F (1998)
Min Temperature 30 °F 36 °F 24 °F (2008)
Degree Days  
Heating Degree Days 23    
Month to date heating degree days 322  
Since 1 July heating degree days 907  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 345  
Moisture  
Dew Point 36 °F    
Average Humidity 83    
Maximum Humidity 100    
Minimum Humidity 66    
Precipitation  
Precipitation 0.00 in 0.27 in 2.43 in (2005)
Month to date precipitation 0.19 3.54  
Year to date precipitation 26.89 32.79  
Since 1 July precipitation 4.45  
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 2 mph (NW)    
Max Wind Speed 8 mph    
Max Gust Speed 9 mph    
Visibility 3 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 18, 2011 Rise Set
Actual Time 7:23 AM PST 4:52 PM PST
Civil Twilight 6:53 AM PST 5:22 PM PST
Nautical Twilight 6:20 AM PST 5:55 PM PST
Astronomical Twilight 5:47 AM PST 6:27 PM PST
Moon 12:34 AM PST 12:17 PM PST
Length of Visible Light 10h 28m
Length of Day
9h 28m
Last Quarter, 41% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Dec 31
First Quarter
Jan 8
Full
Jan 16
Last Quarter

Hourly Weather History & Observations

Time (PST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:27 AM 33.8 °F - 32.0 °F 93% 30.12 in 0.8 mi Calm Calm - N/A   Mist
12:44 AM 33.8 °F - 33.8 °F 100% 30.12 in 0.2 mi Calm Calm - N/A Fog Fog
12:53 AM 32.0 °F - 30.9 °F 96% 30.11 in 0.2 mi Calm Calm - N/A Fog Fog
1:20 AM 32.0 °F - 30.2 °F 93% 30.13 in 0.8 mi Calm Calm - N/A   Mist
1:25 AM 32.0 °F - 30.2 °F 93% 30.13 in 2.5 mi Calm Calm - N/A   Mostly Cloudy
1:28 AM 32.0 °F - 30.2 °F 93% 30.13 in 2.5 mi Calm Calm - N/A   Scattered Clouds
1:35 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.13 in 1.0 mi NW 3.5 mph - N/A   Mist
1:40 AM 32.0 °F - 30.2 °F 93% 30.13 in 0.5 mi Calm Calm - N/A Fog Fog
1:53 AM 30.9 °F - 30.0 °F 96% 30.12 in 1.0 mi Calm Calm - N/A   Mist
1:56 AM 32.0 °F - 30.2 °F 93% 30.13 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
2:08 AM 30.2 °F - 30.2 °F 100% 30.13 in 2.5 mi Calm Calm - N/A   Scattered Clouds
2:11 AM 30.2 °F - 30.2 °F 100% 30.13 in 1.0 mi Calm Calm - N/A   Mist
2:16 AM 30.2 °F - 30.2 °F 100% 30.13 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
2:27 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.14 in 0.5 mi West 3.5 mph - N/A Fog Fog
2:53 AM 32.0 °F - 30.0 °F 92% 30.12 in 0.5 mi Calm Calm - N/A Fog Fog
3:02 AM 32.0 °F - 30.2 °F 93% 30.14 in 0.2 mi Calm Calm - N/A Fog Fog
3:18 AM 30.2 °F - 30.2 °F 100% 30.14 in 0.5 mi Calm Calm - N/A Fog Light Freezing Fog
3:33 AM 30.2 °F - 30.2 °F 100% 30.14 in 0.2 mi Calm Calm - N/A Fog Light Freezing Fog
3:53 AM 30.0 °F 26.5 °F 28.9 °F 96% 30.13 in 0.5 mi WNW 3.5 mph - N/A Fog Light Freezing Fog
4:23 AM 32.0 °F - 32.0 °F 100% 30.14 in 4.0 mi Calm Calm - N/A   Overcast
4:37 AM 32.0 °F - 32.0 °F 100% 30.14 in 1.8 mi Calm Calm - N/A   Overcast
4:53 AM 32.0 °F - 32.0 °F 100% 30.13 in 0.5 mi Calm Calm - N/A Fog Fog
5:04 AM 32.0 °F 28.7 °F 32.0 °F 100% 30.15 in 0.2 mi West 3.5 mph - N/A Fog Fog
5:16 AM 32.0 °F 28.7 °F 32.0 °F 100% 30.16 in 0.5 mi NW 3.5 mph - N/A Fog Fog
5:53 AM 35.1 °F - 34.0 °F 96% 30.14 in 0.5 mi Calm Calm - N/A Fog Fog
6:22 AM 33.8 °F 30.8 °F 33.8 °F 100% 30.17 in 1.2 mi NW 3.5 mph - N/A   Overcast
6:41 AM 33.8 °F - 33.8 °F 100% 30.18 in 2.5 mi Calm Calm - N/A   Overcast
6:53 AM 35.1 °F - 34.0 °F 96% 30.17 in 2.5 mi Calm Calm - N/A   Overcast
7:21 AM 35.6 °F 30.7 °F 35.6 °F 100% 30.20 in 1.5 mi North 5.8 mph - N/A   Overcast
7:44 AM 37.4 °F 33.8 °F 37.4 °F 100% 30.19 in 2.5 mi North 4.6 mph - N/A   Overcast
7:53 AM 37.9 °F - 37.0 °F 97% 30.18 in 2.0 mi Calm Calm - N/A   Overcast
8:10 AM 37.4 °F 34.9 °F 37.4 °F 100% 30.19 in 1.8 mi NW 3.5 mph - N/A   Overcast
8:53 AM 39.0 °F 35.7 °F 39.0 °F 100% 30.19 in 1.8 mi NW 4.6 mph - N/A   Overcast
9:53 AM 42.1 °F 37.7 °F 39.9 °F 92% 30.21 in 1.8 mi North 6.9 mph - N/A   Overcast
10:00 AM 42.8 °F 38.6 °F 41.0 °F 93% 30.22 in 4.0 mi North 6.9 mph - N/A   Overcast
10:17 AM 42.8 °F 39.3 °F 42.8 °F 100% 30.21 in 5.0 mi North 5.8 mph - N/A   Overcast
10:34 AM 44.6 °F 40.7 °F 42.8 °F 93% 30.21 in 3.0 mi North 6.9 mph - N/A   Overcast
11:53 AM 48.0 °F - 44.1 °F 86% 30.18 in 6.0 mi NW 3.5 mph - N/A   Overcast
12:53 PM 48.9 °F - 42.1 °F 77% 30.16 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
1:53 PM 51.1 °F - 43.0 °F 74% 30.13 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
1:58 PM 51.8 °F - 42.8 °F 71% 30.14 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
2:53 PM 53.1 °F - 43.0 °F 69% 30.12 in 10.0 mi SSE 5.8 mph - N/A   Scattered Clouds
3:53 PM 52.0 °F - 44.1 °F 74% 30.11 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
5:53 PM 44.1 °F 42.5 °F 41.0 °F 89% 30.09 in 10.0 mi South 3.5 mph - N/A   Scattered Clouds
6:53 PM 42.1 °F 39.2 °F 39.9 °F 92% 30.09 in 10.0 mi SE 4.6 mph - N/A   Scattered Clouds
7:53 PM 39.0 °F - 37.9 °F 96% 30.09 in 1.8 mi Calm Calm - N/A   Clear
8:04 PM 41.0 °F - 39.2 °F 93% 30.11 in 0.8 mi Calm Calm - N/A   Clear
8:11 PM 39.2 °F - 39.2 °F 100% 30.10 in 1.0 mi Calm Calm - N/A   Mist
8:22 PM 37.4 °F - 37.4 °F 100% 30.11 in 0.5 mi Calm Calm - N/A Fog Fog
8:33 PM 37.4 °F - 37.4 °F 100% 30.11 in 0.2 mi Calm Calm - N/A Fog Fog
8:53 PM 37.0 °F - 36.0 °F 96% 30.09 in 0.5 mi Calm Calm - N/A Fog Fog
9:42 PM 39.2 °F - 37.4 °F 93% 30.10 in 0.2 mi Calm Calm - N/A Fog Fog
9:53 PM 37.9 °F - 37.0 °F 97% 30.09 in 0.2 mi Calm Calm - N/A Fog Fog
10:17 PM 37.4 °F 34.9 °F 37.4 °F 100% 30.11 in 1.8 mi NW 3.5 mph - N/A   Overcast
10:23 PM 39.2 °F - 37.4 °F 93% 30.11 in 3.0 mi Calm Calm - N/A   Overcast
10:30 PM 39.2 °F - 37.4 °F 93% 30.11 in 4.0 mi Calm Calm - N/A   Overcast
10:53 PM 41.0 °F - 39.9 °F 96% 30.09 in 8.0 mi Calm Calm - N/A   Overcast
11:53 PM 42.1 °F - 41.0 °F 96% 30.11 in 7.0 mi Calm Calm - N/A   Overcast