Weather History for Napa County, CA

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Friday, May 24, 2013

  Actual Average Record
Temperature  
Mean Temperature 55 °F 60 °F  
Max Temperature 72 °F 74 °F 84 °F (2005)
Min Temperature 38 °F 47 °F 38 °F (2011)
Degree Days  
Heating Degree Days 10    
Month to date heating degree days 82  
Since 1 July heating degree days 2826  
Cooling Degree Days 0    
Month to date cooling degree days 15  
Year to date cooling degree days 18  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 60    
Maximum Humidity 86    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in - 1.26 in (1931)
Month to date precipitation 0.05  
Year to date precipitation 1.75  
Since 1 July precipitation 9.54  
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 8 mph (SW)    
Max Wind Speed 20 mph    
Max Gust Speed 28 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

May. 24, 2013 Rise Set
Actual Time 5:51 AM PDT 8:21 PM PDT
Civil Twilight 5:20 AM PDT 8:51 PM PDT
Nautical Twilight 4:43 AM PDT 9:29 PM PDT
Astronomical Twilight 4:01 AM PDT 10:11 PM PDT
Moon 8:09 PM PDT (5/24) 5:27 AM PDT (5/24)
Length of Visible Light 15h 30m
Length of Day
14h 29m
Full, 100% of the Moon is Illuminated
May 24
Full
May 24
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 48.0 °F - 41.0 °F 77% 29.96 in 10.0 mi SW 4.6 mph - N/A   Clear
1:54 AM 46.9 °F - 41.0 °F 80% 29.96 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 46.0 °F - 39.9 °F 79% 29.95 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 45.0 °F - 39.0 °F 80% 29.94 in 10.0 mi Calm Calm - N/A   Clear
4:54 AM 41.0 °F - 37.9 °F 89% 29.95 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 41.0 °F 38.0 °F 37.9 °F 89% 29.96 in 10.0 mi WSW 4.6 mph - N/A   Clear
6:54 AM 46.0 °F - 43.0 °F 89% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 50.0 °F - 41.0 °F 71% 29.98 in 10.0 mi West 3.5 mph - N/A   Clear
8:54 AM 55.9 °F - 41.0 °F 57% 29.98 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 57.9 °F - 42.1 °F 56% 29.98 in 10.0 mi SSW 4.6 mph - N/A   Clear
10:54 AM 62.1 °F - 43.0 °F 50% 29.98 in 10.0 mi SW 8.1 mph - N/A   Clear
11:54 AM 66.0 °F - 42.1 °F 42% 29.97 in 10.0 mi SW 9.2 mph - N/A   Clear
12:54 PM 68.0 °F - 42.1 °F 39% 29.96 in 10.0 mi SSW 6.9 mph - N/A   Clear
1:54 PM 70.0 °F - 42.1 °F 36% 29.95 in 10.0 mi SSW 11.5 mph - N/A   Clear
2:54 PM 72.0 °F - 44.1 °F 37% 29.93 in 10.0 mi SSW 16.1 mph - N/A   Clear
3:54 PM 71.1 °F - 45.0 °F 39% 29.93 in 10.0 mi SW 16.1 mph - N/A   Clear
4:54 PM 72.0 °F - 41.0 °F 33% 29.91 in 10.0 mi SW 10.4 mph - N/A   Clear
5:54 PM 68.0 °F - 39.9 °F 36% 29.91 in 10.0 mi WSW 13.8 mph - N/A   Clear
6:54 PM 64.0 °F - 41.0 °F 43% 29.90 in 10.0 mi West 13.8 mph 20.7 mph N/A   Clear
7:54 PM 59.0 °F - 42.1 °F 53% 29.91 in 10.0 mi SW 10.4 mph - N/A   Clear
8:54 PM 55.0 °F - 43.0 °F 64% 29.91 in 10.0 mi SSW 11.5 mph - N/A   Clear
9:54 PM 54.0 °F - 44.1 °F 69% 29.92 in 10.0 mi SSW 9.2 mph - N/A   Clear
10:54 PM 53.1 °F - 43.0 °F 69% 29.94 in 10.0 mi SW 12.7 mph - N/A   Clear
11:54 PM 52.0 °F - 43.0 °F 71% 29.93 in 10.0 mi WSW 13.8 mph - N/A   Clear