Napa County, CA

7:53 PM PDT on October 18, 2017 (GMT -0700)
Napa County

Weather History for KAPC - September, 2012

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Sunday, September 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 70 °F 62 °F  
Max Temperature 93 °F 78 °F 98 °F (2001)
Min Temperature 46 °F 46 °F 37 °F (2009)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 80  
Since 1 July heating degree days 135  
Cooling Degree Days 5    
Month to date cooling degree days 15  
Year to date cooling degree days 168  
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 62    
Maximum Humidity 100    
Minimum Humidity 23    
Precipitation  
Precipitation 0.00 in - 0.86 in (1983)
Month to date precipitation 0.00  
Year to date precipitation 13.77  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 3 mph (South)    
Max Wind Speed 9 mph    
Max Gust Speed 10 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Sep. 30, 2012 Rise Set
Actual Time 7:04 AM PDT 6:52 PM PDT
Civil Twilight 6:38 AM PDT 7:18 PM PDT
Nautical Twilight 6:07 AM PDT 7:49 PM PDT
Astronomical Twilight 5:36 AM PDT 8:20 PM PDT
Moon 7:01 PM PDT (9/30) 7:39 AM PDT (9/30)
Length of Visible Light 12h 40m
Length of Day
11h 48m
Full, 100% of the Moon is Illuminated
Sep 30
Full
Oct 8
Last Quarter
Oct 15
New
Oct 21
First Quarter
Oct 29
Full

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 54.0 °F 52.0 °F 93% 30.00 in 10.0 mi SE 3.5 mph - N/A   Clear
1:54 AM 52.0 °F 48.9 °F 89% 30.01 in 10.0 mi SE 3.5 mph - N/A   Clear
2:54 AM 52.0 °F 48.9 °F 89% 30.01 in 10.0 mi Calm Calm - N/A   Clear
3:54 AM 53.1 °F 50.0 °F 89% 30.01 in 10.0 mi ESE 3.5 mph - N/A   Clear
4:54 AM 50.0 °F 48.9 °F 96% 30.01 in 10.0 mi Calm Calm - N/A   Clear
5:54 AM 46.9 °F 45.0 °F 93% 30.02 in 10.0 mi Calm Calm - 0.01 in   Clear
7:54 AM 51.1 °F 48.9 °F 92% 30.04 in 10.0 mi Calm Calm - N/A   Clear
8:54 AM 59.0 °F 53.1 °F 81% 30.04 in 10.0 mi Calm Calm - N/A   Clear
9:54 AM 66.0 °F 54.0 °F 65% 30.04 in 10.0 mi Calm Calm - N/A   Clear
10:54 AM 70.0 °F 54.0 °F 57% 30.04 in 10.0 mi Variable 3.5 mph - N/A   Clear
11:54 AM 75.0 °F 53.1 °F 46% 30.03 in 10.0 mi SW 4.6 mph - N/A   Clear
12:54 PM 81.0 °F 52.0 °F 36% 30.01 in 10.0 mi West 4.6 mph - N/A   Clear
1:54 PM 88.0 °F 52.0 °F 29% 29.98 in 10.0 mi Calm Calm - N/A   Clear
2:54 PM 91.0 °F 51.1 °F 25% 29.96 in 10.0 mi SSW 6.9 mph - N/A   Clear
3:54 PM 91.9 °F 48.0 °F 22% 29.94 in 10.0 mi SSW 6.9 mph - N/A   Clear
4:54 PM 91.9 °F 48.9 °F 23% 29.92 in 10.0 mi South 5.8 mph - N/A   Clear
6:54 PM 78.1 °F 55.0 °F 45% 29.92 in 10.0 mi South 3.5 mph - N/A   Clear
7:54 PM 73.0 °F 46.9 °F 39% 29.93 in 10.0 mi SSW 8.1 mph - N/A   Clear
8:54 PM 71.1 °F 46.0 °F 41% 29.94 in 10.0 mi SSE 3.5 mph - N/A   Clear
9:54 PM 68.0 °F 44.1 °F 42% 29.95 in 10.0 mi SSE 5.8 mph - N/A   Clear
11:54 PM 61.0 °F 46.0 °F 58% 29.95 in 10.0 mi Calm Calm - N/A   Clear