Weather History for Napa County, CA

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Sunday, July 22, 2012

  Actual Average Record
Temperature  
Mean Temperature 68 °F 65 °F  
Max Temperature 80 °F 78 °F 106 °F (2006)
Min Temperature 56 °F 53 °F 48 °F (1999)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 17  
Since 1 June heating degree days 78  
Since 1 July heating degree days 17  
Cooling Degree Days 3    
Month to date cooling degree days 33  
Year to date cooling degree days 94  
Since 1 June cooling degree days 80  
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 48    
Precipitation  
Precipitation 0.00 in - 0.20 in (1937)
Month to date precipitation T  
Year to date precipitation 13.77  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 9 mph (SSW)    
Max Wind Speed 22 mph    
Max Gust Speed -    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jul. 22, 2012 Rise Set
Actual Time 6:03 AM PDT 8:26 PM PDT
Civil Twilight 5:33 AM PDT 8:56 PM PDT
Nautical Twilight 4:56 AM PDT 9:34 PM PDT
Astronomical Twilight 4:15 AM PDT 10:14 PM PDT
Moon 9:50 AM PDT (7/22) 10:17 PM PDT (7/22)
Length of Visible Light 15h 23m
Length of Day
14h 23m
Waxing Crescent, 14% of the Moon is Illuminated
Jul 22
Waxing Crescent
Jul 26
First Quarter
Aug 1
Full
Aug 9
Last Quarter
Aug 17
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 60.1 °F 55.9 °F 86% 29.87 in 10.0 mi SSW 10.4 mph - N/A   Clear
1:54 AM 57.9 °F 55.0 °F 90% 29.87 in 9.0 mi SSW 8.1 mph - N/A   Clear
2:54 AM 57.0 °F 54.0 °F 89% 29.86 in 9.0 mi SSW 8.1 mph - N/A   Clear
3:54 AM 57.0 °F 55.0 °F 93% 29.86 in 9.0 mi SSW 6.9 mph - N/A   Clear
4:18 AM 57.2 °F 55.4 °F 94% 29.88 in 9.0 mi SSW 9.2 mph - N/A   Scattered Clouds
4:35 AM 57.2 °F 55.4 °F 94% 29.88 in 9.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
4:54 AM 57.0 °F 54.0 °F 89% 29.86 in 8.0 mi SW 8.1 mph - N/A   Overcast
5:54 AM 57.0 °F 54.0 °F 89% 29.87 in 8.0 mi North - - N/A   Overcast
6:54 AM 57.9 °F 55.0 °F 90% 29.88 in 6.0 mi SW 6.9 mph - N/A   Overcast
7:54 AM 60.1 °F 55.9 °F 86% 29.89 in 8.0 mi SW 5.8 mph - N/A   Mostly Cloudy
8:54 AM 63.0 °F 55.0 °F 75% 29.89 in 10.0 mi Variable 5.8 mph - N/A   Clear
9:54 AM 66.9 °F 55.9 °F 68% 29.89 in 10.0 mi SW 6.9 mph - N/A   Clear
10:54 AM 70.0 °F 57.0 °F 63% 29.89 in 10.0 mi Variable 5.8 mph - N/A   Clear
11:54 AM 73.0 °F 57.0 °F 57% 29.88 in 10.0 mi SSW 8.1 mph - N/A   Clear
12:54 PM 75.0 °F 57.9 °F 55% 29.87 in 10.0 mi SSW 8.1 mph - N/A   Clear
1:54 PM 78.1 °F 57.0 °F 48% 29.86 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:54 PM 79.0 °F 57.0 °F 47% 29.84 in 10.0 mi SSW 11.5 mph - N/A   Clear
3:54 PM 75.9 °F 55.9 °F 50% 29.82 in 10.0 mi SSW 16.1 mph - N/A   Clear
4:54 PM 75.9 °F 55.9 °F 50% 29.81 in 10.0 mi South 11.5 mph - N/A   Clear
5:54 PM 73.0 °F 55.9 °F 55% 29.80 in 10.0 mi South 11.5 mph - N/A   Clear
6:54 PM 69.1 °F 55.0 °F 61% 29.80 in 10.0 mi South 13.8 mph - N/A   Clear
7:54 PM 64.9 °F 55.0 °F 70% 29.81 in 10.0 mi South 9.2 mph - N/A   Clear
8:54 PM 62.1 °F 54.0 °F 75% 29.82 in 10.0 mi South 15.0 mph - N/A   Clear
9:54 PM 61.0 °F 54.0 °F 78% 29.85 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:54 PM 60.1 °F 54.0 °F 80% 29.86 in 10.0 mi South 5.8 mph - N/A   Clear
11:36 PM 59.0 °F 53.6 °F 82% 29.89 in 9.0 mi South 10.4 mph - N/A   Partly Cloudy
11:54 PM 57.9 °F 54.0 °F 87% 29.87 in 8.0 mi SSW 8.1 mph - N/A   Scattered Clouds