Weather History for Santa Rosa, CA

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Sunday, April 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 56 °F  
Max Temperature 87 °F 70 °F 92 °F (2009)
Min Temperature 43 °F 43 °F 32 °F (2008)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 128  
Since 1 July heating degree days 2554  
Cooling Degree Days 0    
Month to date cooling degree days 1  
Year to date cooling degree days 1  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 58    
Maximum Humidity 92    
Minimum Humidity 23    
Precipitation  
Precipitation 0.00 in 0.07 in 1.28 in (2007)
Month to date precipitation 1.11 1.58  
Year to date precipitation 4.85 20.01  
Since 1 July precipitation 27.26 34.20  
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 3 mph (South)    
Max Wind Speed 13 mph    
Max Gust Speed 17 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Apr. 21, 2013 Rise Set
Actual Time 6:26 AM PDT 7:53 PM PDT
Civil Twilight 5:58 AM PDT 8:21 PM PDT
Nautical Twilight 5:25 AM PDT 8:55 PM PDT
Astronomical Twilight 4:50 AM PDT 9:30 PM PDT
Moon 3:47 PM PDT (4/21) 3:48 AM PDT (4/21)
Length of Visible Light 14h 23m
Length of Day
13h 27m
Waxing Gibbous, 81% of the Moon is Illuminated
Apr 21
Waxing Gibbous
Apr 25
Full
May 2
Last Quarter
May 9
New
May 17
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 50.0 °F - 45.0 °F 83% 30.01 in 7.0 mi Calm Calm - N/A   Clear
1:53 AM 46.9 °F - 43.0 °F 86% 30.00 in 7.0 mi Calm Calm - N/A   Clear
2:53 AM 46.9 °F - 43.0 °F 86% 29.99 in 7.0 mi Calm Calm - N/A   Clear
3:53 AM 46.0 °F - 43.0 °F 89% 29.98 in 6.0 mi Calm Calm - N/A   Clear
4:53 AM 45.0 °F - 42.1 °F 90% 29.98 in 8.0 mi Calm Calm - N/A   Clear
5:53 AM 44.1 °F - 41.0 °F 89% 29.98 in 8.0 mi Calm Calm - N/A   Clear
6:53 AM 44.1 °F 41.5 °F 42.1 °F 93% 29.99 in 7.0 mi WNW 4.6 mph - N/A   Clear
7:53 AM 52.0 °F - 48.0 °F 86% 30.01 in 9.0 mi NW 4.6 mph - N/A   Clear
8:53 AM 61.0 °F - 51.1 °F 70% 30.01 in 9.0 mi North 4.6 mph - N/A   Clear
9:53 AM 68.0 °F - 50.0 °F 52% 30.01 in 10.0 mi North 5.8 mph - N/A   Clear
10:53 AM 73.9 °F - 50.0 °F 43% 30.01 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:53 AM 78.1 °F - 48.9 °F 36% 30.00 in 10.0 mi Calm Calm - N/A   Clear
12:53 PM 82.0 °F - 48.0 °F 30% 29.98 in 10.0 mi SSE 4.6 mph - N/A   Clear
1:53 PM 82.9 °F - 48.0 °F 29% 29.96 in 10.0 mi South 5.8 mph - N/A   Clear
2:53 PM 84.9 °F - 46.9 °F 27% 29.94 in 10.0 mi South 9.2 mph - N/A   Clear
3:53 PM 87.1 °F - 46.0 °F 24% 29.92 in 10.0 mi South 8.1 mph - N/A   Clear
4:53 PM 84.0 °F - 46.9 °F 27% 29.92 in 10.0 mi South 10.4 mph - N/A   Clear
5:53 PM 84.0 °F - 42.1 °F 23% 29.91 in 10.0 mi Calm Calm - N/A   Clear
6:53 PM 75.9 °F - 44.1 °F 32% 29.90 in 10.0 mi SE 8.1 mph - N/A   Clear
7:53 PM 69.1 °F - 44.1 °F 40% 29.90 in 9.0 mi South 5.8 mph - N/A   Clear
8:53 PM 62.1 °F - 48.0 °F 60% 29.93 in 10.0 mi Calm Calm - N/A   Clear
9:53 PM 60.1 °F - 48.9 °F 67% 29.94 in 9.0 mi Calm Calm - N/A   Clear
10:53 PM 57.9 °F - 48.9 °F 72% 29.94 in 9.0 mi Calm Calm - N/A   Clear
11:53 PM 55.9 °F - 48.9 °F 77% 29.94 in 9.0 mi Calm Calm - N/A   Clear