Weather History for Napa County, CA

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Wednesday, October 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 55 °F 60 °F  
Max Temperature 70 °F 76 °F 88 °F (1999)
Min Temperature 39 °F 44 °F 37 °F (2008)
Degree Days  
Heating Degree Days 10    
Month to date heating degree days 39  
Since 1 July heating degree days 103  
Cooling Degree Days 0    
Month to date cooling degree days 4  
Year to date cooling degree days 303  
Growing Degree Days 5 (Base 50)    
Moisture  
Dew Point 42 °F    
Average Humidity 65    
Maximum Humidity 93    
Minimum Humidity 36    
Precipitation  
Precipitation 0.00 in - 1.18 in (1947)
Month to date precipitation 0.00  
Year to date precipitation 2.81  
Since 1 July precipitation 0.84  
Sea Level Pressure  
Sea Level Pressure 29.65 in    
Wind  
Wind Speed 5 mph (SW)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 9 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 09, 2013 Rise Set
Actual Time 7:12 AM PDT 6:39 PM PDT
Civil Twilight 6:46 AM PDT 7:05 PM PDT
Nautical Twilight 6:15 AM PDT 7:36 PM PDT
Astronomical Twilight 5:44 AM PDT 8:06 PM PDT
Moon 12:09 PM PDT (10/9) 10:22 PM PDT (10/9)
Length of Visible Light 12h 19m
Length of Day
11h 26m
Waxing Crescent, 26% of the Moon is Illuminated
Oct 9
Waxing Crescent
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter
Nov 3
New

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 - 44.1 °F 86% 29.67 in 10.0 mi WSW 5.8 mph - N/A   Clear
1:54 AM 46.0 °F - 42.1 °F 86% 29.66 in 10.0 mi Calm Calm - N/A   Clear
2:54 AM 44.1 °F - 41.0 °F 89% 29.65 in 10.0 mi Calm Calm - N/A   Clear
3:34 AM 44.6 °F - 42.8 °F 93% 29.65 in 1.5 mi Calm Calm - N/A   Clear
3:36 AM 44.6 °F - 42.8 °F 93% 29.66 in 0.8 mi Calm Calm - N/A   Mist
3:46 AM 44.6 °F 42.2 °F 42.8 °F 93% 29.66 in 1.5 mi North 4.6 mph - N/A   Partly Cloudy
3:48 AM 44.6 °F 43.1 °F 42.8 °F 93% 29.65 in 4.0 mi North 3.5 mph - N/A   Partly Cloudy
3:54 AM 44.1 °F - 42.1 °F 93% 29.63 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:54 AM 42.1 °F 40.2 °F 39.9 °F 92% 29.62 in 9.0 mi East 3.5 mph - N/A   Partly Cloudy
5:54 AM 45.0 °F 43.5 °F 41.0 °F 86% 29.61 in 10.0 mi ESE 3.5 mph - N/A   Clear
6:54 AM 43.0 °F 38.8 °F 39.9 °F 89% 29.61 in 9.0 mi NNW 6.9 mph - N/A   Clear
7:54 AM 41.0 °F - 39.9 °F 96% 29.62 in 9.0 mi Calm Calm - N/A   Clear
8:54 AM 51.1 °F - 45.0 °F 80% 29.63 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 55.0 °F - 44.1 °F 67% 29.63 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 60.1 °F - 44.1 °F 55% 29.63 in 10.0 mi WSW 4.6 mph - N/A   Clear
11:54 AM 64.9 °F - 42.1 °F 43% 29.62 in 10.0 mi SSW 6.9 mph - N/A   Clear
12:54 PM 66.0 °F - 44.1 °F 45% 29.62 in 10.0 mi South 12.7 mph - N/A   Clear
1:54 PM 68.0 °F - 42.1 °F 39% 29.62 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:54 PM 69.1 °F - 44.1 °F 40% 29.62 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
3:54 PM 69.1 °F - 43.0 °F 39% 29.63 in 10.0 mi SSW 11.5 mph - N/A   Mostly Cloudy
4:54 PM 69.1 °F - 46.0 °F 44% 29.63 in 10.0 mi SSW 12.7 mph - N/A   Clear
5:54 PM 69.1 °F - 41.0 °F 36% 29.65 in 10.0 mi West 8.1 mph - N/A   Clear
6:54 PM 62.1 °F - 39.9 °F 44% 29.66 in 10.0 mi SSE 3.5 mph - N/A   Clear
7:54 PM 57.0 °F - 43.0 °F 59% 29.67 in 10.0 mi SSE 5.8 mph - N/A   Clear
8:54 PM 55.9 °F - 43.0 °F 62% 29.69 in 10.0 mi Calm Calm - N/A   Clear
9:54 PM 54.0 °F - 42.1 °F 64% 29.71 in 10.0 mi Calm Calm - N/A   Clear
10:54 PM 57.0 °F - 41.0 °F 55% 29.72 in 10.0 mi NW 4.6 mph - N/A   Clear
11:54 PM 54.0 °F - 41.0 °F 62% 29.73 in 10.0 mi WNW 5.8 mph - N/A   Clear