Weather History for Napa County, CA

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Tuesday, May 13, 2014

  Actual Average Record
Temperature  
Mean Temperature 67 °F 58 °F  
Max Temperature 89 °F 72 °F 89 °F (2014)
Min Temperature 45 °F 45 °F 37 °F (1999)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 74  
Since 1 July heating degree days 2819  
Cooling Degree Days 2    
Month to date cooling degree days 3  
Year to date cooling degree days 4  
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 55    
Maximum Humidity 86    
Minimum Humidity 24    
Precipitation  
Precipitation 0.00 in - 1.00 in (1941)
Month to date precipitation T  
Year to date precipitation 8.14  
Since 1 July precipitation 10.34  
Sea Level Pressure  
Sea Level Pressure 30.07 in    
Wind  
Wind Speed 4 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 19 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

May. 13, 2014 Rise Set
Actual Time 5:59 AM PDT 8:11 PM PDT
Civil Twilight 5:30 AM PDT 8:41 PM PDT
Nautical Twilight 4:54 AM PDT 9:17 PM PDT
Astronomical Twilight 4:15 AM PDT 9:56 PM PDT
Moon 7:19 PM PDT (5/13) 5:18 AM PDT (5/13)
Length of Visible Light 15h 10m
Length of Day
14h 11m
Waxing Gibbous, 99% of the Moon is Illuminated
May 13
Waxing Gibbous
May 14
Full
May 21
Last Quarter
May 28
New
Jun 5
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 51.1 °F - 44.1 °F 77% 30.05 in 10.0 mi Calm Calm - N/A   Clear
1:54 AM 50.0 °F - 43.0 °F 77% 30.04 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 46.0 °F - 43.0 °F 89% 30.04 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 48.9 °F - 43.0 °F 80% 30.05 in 10.0 mi East 3.5 mph - N/A   Clear
4:54 AM 46.0 °F 44.8 °F 43.0 °F 89% 30.05 in 10.0 mi East 3.5 mph - N/A   Clear
6:54 AM 51.1 °F - 46.0 °F 83% 30.07 in 10.0 mi Calm Calm - N/A   Clear
7:54 AM 60.1 °F - 48.9 °F 67% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 71.1 °F - 46.9 °F 42% 30.11 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 78.1 °F - 52.0 °F 40% 30.11 in 10.0 mi Calm Calm - N/A   Clear
11:54 AM 80.1 °F - 53.1 °F 39% 30.09 in 10.0 mi SW 5.8 mph - N/A   Clear
12:54 PM 84.9 °F - 52.0 °F 32% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:54 PM 88.0 °F - 52.0 °F 29% 30.07 in 10.0 mi SSW 5.8 mph - N/A   Clear
2:54 PM 87.1 °F - 52.0 °F 30% 30.06 in 10.0 mi SW 10.4 mph - N/A   Clear
3:54 PM 88.0 °F - 46.9 °F 24% 30.04 in 10.0 mi SW 6.9 mph - N/A   Clear
4:54 PM 88.0 °F - 50.0 °F 27% 30.04 in 10.0 mi SW 5.8 mph - N/A   Clear
5:54 PM 84.9 °F - 46.9 °F 27% 30.03 in 10.0 mi WSW 8.1 mph - N/A   Clear
6:54 PM 80.1 °F - 52.0 °F 38% 30.03 in 10.0 mi West 11.5 mph - N/A   Clear
7:54 PM 73.0 °F - 46.0 °F 38% 30.05 in 10.0 mi West 6.9 mph - N/A   Clear
8:54 PM 68.0 °F - 46.0 °F 45% 30.06 in 10.0 mi WNW 4.6 mph - N/A   Clear
9:54 PM 66.9 °F - 48.9 °F 52% 30.09 in 10.0 mi SW 4.6 mph - N/A   Clear
10:54 PM 60.1 °F - 48.9 °F 67% 30.09 in 10.0 mi SE 5.8 mph - N/A   Clear
11:54 PM 59.0 °F - 48.0 °F 67% 30.09 in 10.0 mi SE 5.8 mph - N/A   Clear