Santa Rosa, CA

11:50 AM PST on December 16, 2017 (GMT -0800)
Sonoma County

Weather History for KSTS - August, 2012

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Monday, August 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 68 °F 67 °F  
Max Temperature 86 °F 84 °F 89 °F (2007)
Min Temperature 50 °F 51 °F 47 °F (2000)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 4  
Since 1 June heating degree days 91  
Since 1 July heating degree days 27  
Cooling Degree Days 3    
Month to date cooling degree days 63  
Year to date cooling degree days 256  
Since 1 June cooling degree days 227  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 66    
Maximum Humidity 100    
Minimum Humidity 32    
Precipitation  
Precipitation 0.00 in 0.01 in 0.00 in (2017)
Month to date precipitation T 0.02  
Year to date precipitation 18.79 22.12  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 5 mph (South)    
Max Wind Speed 14 mph    
Max Gust Speed 17 mph    
Visibility 5 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Aug. 20, 2012 Rise Set
Actual Time 6:30 AM PDT 7:57 PM PDT
Civil Twilight 6:02 AM PDT 8:25 PM PDT
Nautical Twilight 5:29 AM PDT 8:58 PM PDT
Astronomical Twilight 4:53 AM PDT 9:34 PM PDT
Moon 9:55 AM PDT (8/20) 9:28 PM PDT (8/20)
Length of Visible Light 14h 22m
Length of Day
13h 27m
Waxing Crescent, 12% of the Moon is Illuminated
Aug 20
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:01 AM 51.8 °F - 48.2 °F 88% 29.90 in 4.0 mi South 4.6 mph - N/A   Mostly Cloudy
12:11 AM 51.8 °F - 48.2 °F 88% 29.89 in 1.8 mi South 3.5 mph - N/A   Overcast
12:36 AM 50.0 °F - 48.2 °F 94% 29.89 in 0.8 mi South 3.5 mph - N/A   Mist
12:53 AM 50.0 °F - 48.9 °F 96% 29.87 in 0.5 mi Calm Calm - N/A Fog Fog
1:53 AM 50.0 °F - 48.9 °F 96% 29.87 in 0.2 mi SSE 3.5 mph - N/A Fog Fog
2:02 AM 50.0 °F - 48.2 °F 94% 29.89 in 0.5 mi South 3.5 mph - N/A Fog Fog
2:53 AM 50.0 °F - 50.0 °F 100% 29.87 in 0.5 mi Calm Calm - N/A Fog Fog
3:53 AM 50.0 °F - 48.9 °F 96% 29.88 in 0.5 mi South 3.5 mph - N/A Fog Fog
4:53 AM 50.0 °F - 48.9 °F 96% 29.87 in 0.5 mi Calm Calm - N/A Fog Fog
5:53 AM 50.0 °F - 50.0 °F 100% 29.88 in 0.5 mi SSW 3.5 mph - N/A Fog Fog
6:53 AM 50.0 °F - 50.0 °F 100% 29.89 in 0.5 mi Calm Calm - N/A Fog Fog
7:06 AM 51.8 °F - 50.0 °F 94% 29.91 in 0.2 mi Calm Calm - N/A Fog Fog
7:46 AM 51.8 °F - 50.0 °F 94% 29.92 in 0.5 mi Calm Calm - N/A Fog Fog
7:53 AM 51.1 °F - 50.0 °F 96% 29.90 in 0.2 mi Calm Calm - N/A Fog Fog
8:04 AM 51.8 °F - 50.0 °F 94% 29.92 in 0.5 mi Calm Calm - N/A Fog Fog
8:53 AM 51.1 °F - 50.0 °F 96% 29.91 in 0.5 mi Calm Calm - N/A   Overcast
9:00 AM 51.8 °F - 50.0 °F 94% 29.93 in 1.0 mi Calm Calm - N/A   Overcast
9:18 AM 51.8 °F - 50.0 °F 94% 29.93 in 1.0 mi SSE 3.5 mph - N/A   Overcast
9:53 AM 55.9 °F - 50.0 °F 80% 29.92 in 10.0 mi Calm Calm - N/A   Haze
10:01 AM 57.2 °F - 51.8 °F 82% 29.93 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
10:53 AM 63.0 °F - 51.1 °F 65% 29.91 in 10.0 mi South 4.6 mph - N/A   Haze
11:53 AM 71.1 °F - 51.1 °F 49% 29.90 in 10.0 mi Variable 3.5 mph - N/A   Haze
12:53 PM 75.9 °F - 51.1 °F 42% 29.88 in 10.0 mi South 4.6 mph - N/A   Clear
1:53 PM 82.9 °F - 51.1 °F 33% 29.85 in 10.0 mi Variable 4.6 mph - N/A   Clear
2:53 PM 84.0 °F 82.5 °F 53.1 °F 34% 29.83 in 10.0 mi South 9.2 mph - N/A   Scattered Clouds
2:57 PM 84.2 °F - 51.8 °F 33% 29.85 in 10.0 mi South 9.2 mph - N/A   Clear
3:53 PM 84.9 °F - 51.1 °F 31% 29.81 in 10.0 mi South 11.5 mph - N/A   Scattered Clouds
4:53 PM 82.0 °F - 52.0 °F 35% 29.80 in 10.0 mi South 12.7 mph - N/A   Clear
5:53 PM 75.9 °F - 52.0 °F 43% 29.80 in 10.0 mi SSE 11.5 mph - N/A   Clear
6:53 PM 69.1 °F - 51.1 °F 53% 29.80 in 10.0 mi SE 10.4 mph - N/A   Clear
7:53 PM 60.1 °F - 50.0 °F 69% 29.81 in 10.0 mi SSE 6.9 mph - N/A   Clear
8:53 PM 55.9 °F - 50.0 °F 80% 29.83 in 10.0 mi SSE 8.1 mph - N/A   Clear
9:53 PM 54.0 °F - 50.0 °F 86% 29.85 in 10.0 mi South 3.5 mph - N/A   Clear
10:53 PM 53.1 °F - 48.9 °F 86% 29.85 in 10.0 mi SSE 4.6 mph - N/A   Clear
11:53 PM 52.0 °F - 48.9 °F 89% 29.85 in 10.0 mi South 3.5 mph - N/A   Clear