Weather History for Santa Rosa, CA

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Wednesday, September 12, 2012

  Actual Average Record
Temperature  
Mean Temperature 65 °F 67 °F  
Max Temperature 80 °F 84 °F 102 °F (2003)
Min Temperature 49 °F 50 °F 45 °F (2005)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 15  
Since 1 July heating degree days 53  
Cooling Degree Days 0    
Month to date cooling degree days 8  
Year to date cooling degree days 280  
Growing Degree Days 13 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 69    
Maximum Humidity 100    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.01 in 0.06 in (2009)
Month to date precipitation 0.00 0.08  
Year to date precipitation 18.79 22.26  
Since 1 July precipitation 0.00 0.17  
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 13 mph    
Max Gust Speed 16 mph    
Visibility 7 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Sep. 12, 2012 Rise Set
Actual Time 6:50 AM PDT 7:23 PM PDT
Civil Twilight 6:24 AM PDT 7:49 PM PDT
Nautical Twilight 5:52 AM PDT 8:21 PM PDT
Astronomical Twilight 5:20 AM PDT 8:53 PM PDT
Moon 3:15 AM PDT (9/12) 5:12 PM PDT (9/12)
Length of Visible Light 13h 25m
Length of Day
12h 32m
Waning Crescent, 13% of the Moon is Illuminated
Sep 12
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 51.1 °F 48.9 °F 92% 29.93 in 7.0 mi Calm Calm - N/A   Clear
1:53 AM 50.0 °F 48.0 °F 93% 29.94 in 7.0 mi Calm Calm - N/A   Clear
2:53 AM 50.0 °F 46.9 °F 89% 29.94 in 5.0 mi SSE 3.5 mph - N/A   Scattered Clouds
2:57 AM 48.2 °F 46.4 °F 93% 29.96 in 1.5 mi SSE 4.6 mph - N/A   Mostly Cloudy
2:59 AM 48.2 °F 46.4 °F 93% 29.96 in 0.8 mi SSE 4.6 mph - N/A   Mist
3:09 AM 50.0 °F 48.2 °F 94% 29.96 in 0.2 mi SSE 4.6 mph - N/A Fog Fog
3:29 AM 51.8 °F 50.0 °F 94% 29.97 in 0.5 mi SE 3.5 mph - N/A Fog Fog
3:44 AM 51.8 °F 50.0 °F 94% 29.97 in 2.0 mi SE 3.5 mph - N/A   Overcast
3:53 AM 51.1 °F 50.0 °F 96% 29.95 in 5.0 mi SE 3.5 mph - N/A   Mostly Cloudy
4:02 AM 51.8 °F 50.0 °F 94% 29.97 in 7.0 mi SSE 3.5 mph - N/A   Scattered Clouds
4:28 AM 51.8 °F 48.2 °F 88% 29.98 in 7.0 mi Calm Calm - N/A   Mostly Cloudy
4:53 AM 52.0 °F 51.1 °F 97% 29.97 in 10.0 mi Calm Calm - N/A   Overcast
5:10 AM 51.8 °F 51.8 °F 100% 29.99 in 10.0 mi Calm Calm - N/A   Overcast
5:53 AM 52.0 °F 51.1 °F 97% 29.99 in 10.0 mi Calm Calm - N/A   Overcast
6:53 AM 52.0 °F 51.1 °F 97% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
7:04 AM 53.6 °F 51.8 °F 94% 30.03 in 2.0 mi South 3.5 mph - N/A   Overcast
7:53 AM 52.0 °F 50.0 °F 93% 30.03 in 2.0 mi Calm Calm - N/A   Overcast
8:00 AM 53.6 °F 51.8 °F 94% 30.05 in 10.0 mi Calm Calm - N/A   Overcast
8:07 AM 53.6 °F 51.8 °F 94% 30.05 in 2.0 mi Calm Calm - N/A   Overcast
8:53 AM 53.1 °F 51.1 °F 93% 30.04 in 2.0 mi Calm Calm - N/A   Overcast
9:00 AM 53.6 °F 51.8 °F 94% 30.06 in 3.0 mi Calm Calm - N/A   Overcast
9:38 AM 53.6 °F 51.8 °F 94% 30.07 in 3.0 mi Calm Calm - N/A   Overcast
9:53 AM 55.0 °F 51.1 °F 86% 30.06 in 3.0 mi South 3.5 mph - N/A   Overcast
10:44 AM 57.2 °F 51.8 °F 82% 30.08 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:53 AM 59.0 °F 51.1 °F 75% 30.06 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:53 AM 66.0 °F 52.0 °F 60% 30.05 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:53 PM 72.0 °F 51.1 °F 48% 30.03 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
1:53 PM 75.9 °F 52.0 °F 43% 30.01 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:53 PM 78.1 °F 50.0 °F 37% 29.99 in 10.0 mi South 9.2 mph - N/A   Clear
3:53 PM 78.1 °F 51.1 °F 39% 29.97 in 10.0 mi South 10.4 mph - N/A   Clear
4:53 PM 78.1 °F 52.0 °F 40% 29.96 in 10.0 mi SSE 10.4 mph - N/A   Clear
5:53 PM 75.0 °F 53.1 °F 46% 29.96 in 10.0 mi SSE 10.4 mph - N/A   Partly Cloudy
6:53 PM 68.0 °F 52.0 °F 56% 29.96 in 10.0 mi SSE 8.1 mph - N/A   Clear
7:53 PM 62.1 °F 52.0 °F 70% 29.97 in 10.0 mi SE 8.1 mph - N/A   Clear
8:53 PM 57.0 °F 51.1 °F 81% 29.99 in 10.0 mi South 5.8 mph - N/A   Clear
9:53 PM 55.0 °F 50.0 °F 83% 30.01 in 10.0 mi South 3.5 mph - N/A   Clear
10:53 PM 53.1 °F 48.9 °F 86% 30.02 in 10.0 mi SSE 3.5 mph - N/A   Clear
11:53 PM 52.0 °F 48.9 °F 89% 30.03 in 10.0 mi Calm Calm - N/A   Clear