Napa County, CA

8:19 AM PST on January 16, 2018 (GMT -0800)
Napa County

Weather History for KAPC - September, 2013

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Tuesday, September 10, 2013

  Actual Average Record
Temperature  
Mean Temperature 64 °F 66 °F  
Max Temperature 74 °F 81 °F 96 °F (2017)
Min Temperature 54 °F 50 °F 40 °F (2005)
Degree Days  
Heating Degree Days 1    
Month to date heating degree days 1  
Since 1 July heating degree days 37  
Cooling Degree Days 0    
Month to date cooling degree days 41  
Year to date cooling degree days 278  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 57 °F    
Average Humidity 77    
Maximum Humidity 93    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in - 0.50 in (1978)
Month to date precipitation 0.00  
Year to date precipitation 1.97  
Since 1 July precipitation 0.00  
Sea Level Pressure  
Sea Level Pressure 29.79 in    
Wind  
Wind Speed 13 mph (WSW)    
Max Wind Speed 28 mph    
Max Gust Speed 35 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. 10, 2013 Rise Set
Actual Time 6:46 AM PDT 7:24 PM PDT
Civil Twilight 6:20 AM PDT 7:51 PM PDT
Nautical Twilight 5:48 AM PDT 8:22 PM PDT
Astronomical Twilight 5:16 AM PDT 8:54 PM PDT
Moon 12:12 PM PDT (9/10) 10:37 PM PDT (9/10)
Length of Visible Light 13h 30m
Length of Day
12h 37m
Waxing Crescent, 29% of the Moon is Illuminated
Sep 10
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
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 57.9 °F 93% 29.71 in 10.0 mi SW 5.8 mph - N/A   Partly Cloudy
1:54 AM 59.0 °F 55.9 °F 90% 29.72 in 10.0 mi WSW 8.1 mph - N/A   Clear
2:54 AM 57.0 °F 55.0 °F 93% 29.72 in 10.0 mi SW 3.5 mph - N/A   Clear
3:54 AM 57.0 °F 54.0 °F 89% 29.73 in 10.0 mi SSW 4.6 mph - N/A   Clear
4:54 AM 57.0 °F 55.0 °F 93% 29.74 in 10.0 mi WSW 8.1 mph - N/A   Clear
5:36 AM 57.2 °F 55.4 °F 94% 29.76 in 10.0 mi West 9.2 mph - N/A   Scattered Clouds
5:54 AM 57.0 °F 55.0 °F 93% 29.75 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
6:35 AM 57.2 °F 55.4 °F 94% 29.78 in 10.0 mi West 6.9 mph - N/A   Overcast
6:54 AM 57.9 °F 55.9 °F 93% 29.76 in 10.0 mi WSW 8.1 mph - N/A   Overcast
7:54 AM 59.0 °F 55.9 °F 90% 29.77 in 10.0 mi West 5.8 mph - N/A   Overcast
8:47 AM 60.8 °F 55.4 °F 82% 29.82 in 10.0 mi WSW 6.9 mph - N/A   Overcast
8:54 AM 61.0 °F 55.9 °F 83% 29.79 in 10.0 mi West 6.9 mph - N/A   Overcast
9:54 AM 63.0 °F 55.9 °F 78% 29.79 in 10.0 mi WNW 8.1 mph - N/A   Overcast
10:54 AM 66.9 °F 57.0 °F 70% 29.80 in 10.0 mi SW 8.1 mph - N/A   Mostly Cloudy
11:17 AM 68.0 °F 57.2 °F 68% 29.82 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
11:54 AM 70.0 °F 57.9 °F 65% 29.80 in 10.0 mi South 12.7 mph - N/A   Partly Cloudy
12:54 PM 71.1 °F 59.0 °F 66% 29.79 in 10.0 mi SSW 18.4 mph - N/A   Clear
1:54 PM 73.0 °F 59.0 °F 61% 29.78 in 10.0 mi SSW 21.9 mph 29.9 mph N/A   Clear
2:54 PM 72.0 °F 59.0 °F 64% 29.78 in 10.0 mi SSW 25.3 mph 33.4 mph N/A   Clear
3:54 PM 71.1 °F 60.1 °F 68% 29.77 in 10.0 mi SSW 24.2 mph 32.2 mph N/A   Clear
4:54 PM 70.0 °F 60.1 °F 71% 29.78 in 10.0 mi SSW 20.7 mph 27.6 mph N/A   Clear
5:54 PM 69.1 °F 60.1 °F 73% 29.79 in 10.0 mi SSW 18.4 mph - N/A   Clear
6:23 PM 69.8 °F 57.2 °F 64% 29.82 in 10.0 mi West 18.4 mph - N/A   Clear
6:54 PM 66.9 °F 57.9 °F 73% 29.80 in 10.0 mi West 17.3 mph - N/A   Clear
7:54 PM 64.0 °F 57.9 °F 80% 29.82 in 10.0 mi West 16.1 mph - N/A   Clear
8:41 PM 64.4 °F 57.2 °F 77% 29.86 in 10.0 mi West 16.1 mph - N/A   Mostly Cloudy
8:54 PM 64.0 °F 57.9 °F 80% 29.84 in 10.0 mi West 17.3 mph - N/A   Overcast
9:54 PM 64.0 °F 57.9 °F 80% 29.86 in 10.0 mi West 13.8 mph - N/A   Overcast
10:54 PM 64.0 °F 57.9 °F 80% 29.87 in 10.0 mi West 12.7 mph - N/A   Overcast
11:54 PM 64.0 °F 57.9 °F 80% 29.88 in 10.0 mi WNW 10.4 mph - N/A   Overcast