Napa County, CA

1:21 PM PDT on June 26, 2017 (GMT -0700)
Napa County

Weather History for KAPC - September, 2012

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Saturday, September 15, 2012

  Actual Average Record
Temperature  
Mean Temperature 63 °F 65 °F  
Max Temperature 76 °F 80 °F 91 °F (2004)
Min Temperature 49 °F 50 °F 39 °F (2006)
Degree Days  
Heating Degree Days 2    
Month to date heating degree days 26  
Since 1 July heating degree days 81  
Cooling Degree Days 0    
Month to date cooling degree days 10  
Year to date cooling degree days 163  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 71    
Maximum Humidity 96    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in - 0.42 in (1955)
Month to date precipitation 0.00  
Year to date precipitation 13.77  
Since 1 July precipitation T  
Sea Level Pressure  
Sea Level Pressure 30.04 in    
Wind  
Wind Speed 7 mph (WSW)    
Max Wind Speed 10 mph    
Max Gust Speed 29 mph    
Visibility 8 miles    
Events Fog    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Sep. 15, 2012 Rise Set
Actual Time 6:51 AM PDT 7:16 PM PDT
Civil Twilight 6:24 AM PDT 7:42 PM PDT
Nautical Twilight 5:53 AM PDT 8:13 PM PDT
Astronomical Twilight 5:21 AM PDT 8:45 PM PDT
Moon 6:27 AM PDT (9/15) 6:50 PM PDT (9/15)
Length of Visible Light 13h 17m
Length of Day
12h 24m
Waning Crescent, 0% of the Moon is Illuminated
Sep 15
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 53.1 °F 50.0 °F 89% 30.03 in 10.0 mi West 5.8 mph - N/A   Clear
1:54 AM 52.0 °F 48.9 °F 89% 30.04 in 10.0 mi West 5.8 mph - N/A   Clear
2:49 AM 51.8 °F 48.2 °F 88% 30.06 in 10.0 mi WSW 5.8 mph - 0.01 in   Partly Cloudy
2:54 AM 51.1 °F 48.9 °F 92% 30.04 in 10.0 mi WSW 5.8 mph - 0.01 in   Partly Cloudy
3:10 AM 50.0 °F 48.2 °F 94% 30.06 in 9.0 mi WSW 4.6 mph 19.6 mph N/A   Squalls
3:25 AM 50.0 °F 48.2 °F 94% 30.06 in 9.0 mi WSW 4.6 mph - N/A   Mostly Cloudy
3:54 AM 51.1 °F 48.9 °F 92% 30.04 in 8.0 mi WNW 5.8 mph - N/A   Overcast
4:54 AM 50.0 °F 48.9 °F 96% 30.04 in 8.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
5:38 AM 50.0 °F 48.2 °F 94% 30.06 in 1.8 mi WNW 5.8 mph - N/A   Overcast
5:54 AM 50.0 °F 48.9 °F 96% 30.04 in 1.0 mi NW 3.5 mph - N/A   Mist
6:11 AM 50.0 °F 48.2 °F 94% 30.07 in 0.5 mi NW 3.5 mph - N/A Fog Fog
6:29 AM 50.0 °F 48.2 °F 94% 30.07 in 0.8 mi West 3.5 mph - N/A   Mist
6:46 AM 50.0 °F 48.2 °F 94% 30.07 in 0.5 mi WNW 4.6 mph - N/A Fog Fog
6:51 AM 50.0 °F 48.2 °F 94% 30.07 in 1.0 mi West 5.8 mph - N/A   Mist
6:54 AM 50.0 °F 48.9 °F 96% 30.05 in 1.2 mi West 6.9 mph - N/A   Overcast
7:08 AM 50.0 °F 48.2 °F 94% 30.08 in 3.0 mi West 5.8 mph - N/A   Overcast
7:54 AM 51.1 °F 50.0 °F 96% 30.06 in 5.0 mi West 6.9 mph - N/A   Overcast
8:54 AM 51.1 °F 50.0 °F 96% 30.07 in 10.0 mi WSW 5.8 mph - N/A   Overcast
9:05 AM 51.8 °F 50.0 °F 94% 30.10 in 10.0 mi West 3.5 mph - N/A   Overcast
9:54 AM 54.0 °F 50.0 °F 86% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Overcast
10:24 AM 55.4 °F 50.0 °F 82% 30.11 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
10:54 AM 59.0 °F 51.1 °F 75% 30.09 in 10.0 mi Variable 5.8 mph - N/A   Partly Cloudy
11:54 AM 64.0 °F 52.0 °F 65% 30.08 in 10.0 mi Variable 3.5 mph - N/A   Clear
12:54 PM 68.0 °F 53.1 °F 59% 30.06 in 10.0 mi SW 6.9 mph - N/A   Clear
1:54 PM 72.0 °F 53.1 °F 51% 30.04 in 10.0 mi SSW 8.1 mph - N/A   Clear
2:54 PM 75.0 °F 54.0 °F 48% 30.00 in 10.0 mi SSW 10.4 mph 28.8 mph N/A   Clear
3:54 PM 75.0 °F 53.1 °F 46% 29.98 in 10.0 mi SSW 8.1 mph - N/A   Clear
4:54 PM 75.9 °F 55.0 °F 48% 29.96 in 10.0 mi SSW 8.1 mph - N/A   Clear
5:54 PM 73.0 °F 54.0 °F 51% 29.95 in 10.0 mi South 10.4 mph - N/A   Clear
6:54 PM 66.9 °F 54.0 °F 63% 29.95 in 10.0 mi South 10.4 mph - N/A   Clear
7:54 PM 62.1 °F 50.0 °F 65% 29.95 in 10.0 mi South 9.2 mph - N/A   Clear
8:54 PM 60.1 °F 48.9 °F 67% 29.97 in 10.0 mi SSW 9.2 mph - N/A   Clear
9:54 PM 57.9 °F 51.1 °F 78% 29.99 in 10.0 mi South 5.8 mph - N/A   Clear
10:54 PM 53.1 °F 48.0 °F 83% 29.99 in 10.0 mi South 4.6 mph - N/A   Clear
11:54 PM 52.0 °F 46.9 °F 83% 29.99 in 10.0 mi SE 4.6 mph - N/A   Clear