Weather History for Napa County, CA

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Friday, August 30, 2013

  Actual Average Record
Temperature  
Mean Temperature 73 °F 66 °F  
Max Temperature 92 °F 81 °F 95 °F (2007)
Min Temperature 53 °F 52 °F 44 °F (2010)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 16  
Since 1 June heating degree days 66  
Since 1 July heating degree days 36  
Cooling Degree Days 8    
Month to date cooling degree days 85  
Year to date cooling degree days 233  
Since 1 June cooling degree days 213  
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 65    
Maximum Humidity 100    
Minimum Humidity 29    
Precipitation  
Precipitation 0.00 in - 0.15 in (1966)
Month to date precipitation 0.00  
Year to date precipitation 1.97  
Since 1 July precipitation 0.00  
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 7 mph (SSW)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 6 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Aug. 30, 2013 Rise Set
Actual Time 6:37 AM PDT 7:41 PM PDT
Civil Twilight 6:10 AM PDT 8:08 PM PDT
Nautical Twilight 5:37 AM PDT 8:40 PM PDT
Astronomical Twilight 5:04 AM PDT 9:13 PM PDT
Moon 1:22 AM PDT (8/30) 3:58 PM PDT (8/30)
Length of Visible Light 13h 58m
Length of Day
13h 03m
Waning Crescent, 28% of the Moon is Illuminated
Aug 30
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 61.0 °F - 59.0 °F 93% 30.00 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 61.0 °F - 57.9 °F 90% 29.99 in 10.0 mi SW 3.5 mph - N/A   Clear
2:54 AM 60.1 °F - 57.9 °F 93% 29.99 in 10.0 mi Calm Calm - N/A   Clear
3:22 AM 60.8 °F - 59.0 °F 94% 30.01 in 2.0 mi Calm Calm - N/A   Clear
3:31 AM 57.2 °F - 57.2 °F 100% 30.01 in 4.0 mi Calm Calm - N/A   Clear
3:39 AM 57.2 °F - 55.4 °F 94% 30.01 in 1.8 mi Calm Calm - N/A   Clear
3:42 AM 57.2 °F - 55.4 °F 94% 30.01 in 0.8 mi Calm Calm - N/A   Mist
3:49 AM 57.2 °F - 55.4 °F 94% 30.01 in 0.5 mi Calm Calm - N/A Fog Fog
3:54 AM 57.0 °F - 55.9 °F 96% 29.98 in 0.8 mi Calm Calm - N/A   Mist
3:57 AM 57.2 °F - 55.4 °F 94% 30.01 in 1.2 mi Calm Calm - N/A   Partly Cloudy
4:01 AM 57.2 °F - 55.4 °F 94% 30.01 in 3.0 mi Calm Calm - N/A   Partly Cloudy
4:14 AM 57.2 °F - 55.4 °F 94% 30.01 in 1.2 mi Calm Calm - N/A   Clear
4:17 AM 57.2 °F - 55.4 °F 94% 30.01 in 0.5 mi Calm Calm - N/A Fog Fog
4:31 AM 55.4 °F - 53.6 °F 94% 30.00 in 1.0 mi Calm Calm - N/A   Clear
4:54 AM 55.9 °F - 55.0 °F 97% 29.98 in 1.2 mi Calm Calm - N/A   Clear
5:01 AM 55.4 °F - 53.6 °F 94% 30.00 in 1.2 mi Calm Calm - N/A   Partly Cloudy
5:32 AM 55.4 °F - 53.6 °F 94% 30.01 in 0.8 mi Calm Calm - N/A   Mist
5:54 AM 54.0 °F - 53.1 °F 97% 29.99 in 0.2 mi Calm Calm - N/A Fog Fog
6:54 AM 54.0 °F - 53.1 °F 97% 30.00 in 0.2 mi Calm Calm - N/A Fog Fog
7:02 AM 55.4 °F - 55.4 °F 100% 30.03 in 0.8 mi Calm Calm - N/A   Partly Cloudy
7:07 AM 55.4 °F - 55.4 °F 100% 30.03 in 2.0 mi Calm Calm - N/A   Partly Cloudy
7:17 AM 57.2 °F - 55.4 °F 94% 30.03 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:54 AM 61.0 °F - 60.1 °F 97% 30.01 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:54 AM 66.9 °F - 60.1 °F 79% 30.01 in 10.0 mi SSW 6.9 mph - N/A   Clear
9:54 AM 70.0 °F - 61.0 °F 73% 30.01 in 10.0 mi SSW 8.1 mph - N/A   Clear
10:54 AM 73.0 °F - 61.0 °F 66% 30.01 in 10.0 mi SSW 8.1 mph - N/A   Clear
11:54 AM 77.0 °F - 61.0 °F 58% 30.00 in 10.0 mi South 6.9 mph - N/A   Clear
12:54 PM 81.0 °F 81.7 °F 61.0 °F 50% 29.98 in 10.0 mi SSW 8.1 mph - N/A   Clear
1:54 PM 84.9 °F 85.0 °F 61.0 °F 44% 29.95 in 10.0 mi SSW 8.1 mph - N/A   Clear
2:54 PM 88.0 °F 87.6 °F 60.1 °F 39% 29.93 in 10.0 mi SSW 11.5 mph - N/A   Clear
3:54 PM 88.0 °F 87.9 °F 61.0 °F 40% 29.90 in 10.0 mi SW 13.8 mph - N/A   Clear
4:54 PM 88.0 °F 88.4 °F 62.1 °F 42% 29.89 in 10.0 mi SSW 12.7 mph - N/A   Clear
5:54 PM 89.1 °F 86.7 °F 53.1 °F 29% 29.88 in 10.0 mi WSW 10.4 mph - N/A   Clear
6:54 PM 82.9 °F 82.4 °F 57.0 °F 41% 29.87 in 10.0 mi SW 10.4 mph - N/A   Clear
7:54 PM 73.9 °F - 57.9 °F 57% 29.87 in 10.0 mi South 6.9 mph - N/A   Clear
8:54 PM 71.1 °F - 55.9 °F 59% 29.88 in 10.0 mi South 8.1 mph - N/A   Clear
9:54 PM 68.0 °F - 57.0 °F 68% 29.90 in 10.0 mi South 6.9 mph - N/A   Clear
10:54 PM 68.0 °F - 55.9 °F 65% 29.91 in 10.0 mi SSW 10.4 mph - N/A   Clear
11:54 PM 66.0 °F - 57.0 °F 73% 29.91 in 10.0 mi SW 9.2 mph - N/A   Clear