American Canyon, CA

9:21 AM PST on February 13, 2016 (GMT -0800)
Napa County

Weather History for KAPC - September, 2011

Change the Weather History Date:

Friday, September 30, 2011

  Actual Average Record
Temperature  
Mean Temperature 66 °F 62 °F  
Max Temperature 74 °F 78 °F 98 °F (2001)
Min Temperature 57 °F 46 °F 37 °F (2009)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 24  
Since 1 July heating degree days 81  
Cooling Degree Days 1    
Month to date cooling degree days 65  
Year to date cooling degree days 161  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 55 °F    
Average Humidity 68    
Maximum Humidity 86    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in - 0.86 in (1983)
Month to date precipitation 0.01  
Year to date precipitation 15.88  
Since 1 July precipitation 0.03  
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 10 mph (West)    
Max Wind Speed 22 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport or City:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 30, 2011 Rise Set
Actual Time 7:03 AM PDT 6:53 PM PDT
Civil Twilight 6:37 AM PDT 7:20 PM PDT
Nautical Twilight 6:06 AM PDT 7:50 PM PDT
Astronomical Twilight 5:35 AM PDT 8:21 PM PDT
Moon 11:03 AM PDT (9/30) 9:05 PM PDT (9/30)
Length of Visible Light 12h 42m
Length of Day
11h 50m
Waxing Crescent, 16% of the Moon is Illuminated
Sep 30
Waxing Crescent
Oct 3
First Quarter
Oct 11
Full
Oct 19
Last Quarter
Oct 26
New

Hourly Weather History & Observations

Time (PDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:17 AM 62.6 °F 57.2 °F 82% 29.93 in 10.0 mi WNW 11.5 mph - N/A   Overcast
12:54 AM 63.0 °F 57.0 °F 81% 29.91 in 10.0 mi WNW 12.7 mph - N/A   Overcast
1:54 AM 62.1 °F 57.0 °F 84% 29.92 in 10.0 mi WNW 11.5 mph - N/A   Overcast
2:54 AM 62.1 °F 57.0 °F 84% 29.92 in 10.0 mi WNW 10.4 mph - N/A   Overcast
3:07 AM 62.6 °F 57.2 °F 82% 29.94 in 10.0 mi WNW 10.4 mph - N/A   Overcast
3:54 AM 62.1 °F 57.0 °F 84% 29.90 in 10.0 mi NW 10.4 mph - N/A   Overcast
4:54 AM 62.1 °F 55.9 °F 80% 29.88 in 10.0 mi WNW 4.6 mph - N/A   Overcast
5:54 AM 62.1 °F 57.0 °F 84% 29.90 in 10.0 mi WNW 8.1 mph - N/A   Overcast
6:54 AM 63.0 °F 55.9 °F 78% 29.91 in 10.0 mi WNW 9.2 mph - N/A   Overcast
7:54 AM 63.0 °F 55.0 °F 75% 29.93 in 10.0 mi West 6.9 mph - N/A   Overcast
8:54 AM 64.0 °F 55.0 °F 73% 29.94 in 10.0 mi West 9.2 mph - N/A   Overcast
9:54 AM 66.0 °F 55.0 °F 68% 29.94 in 10.0 mi West 8.1 mph - N/A   Overcast
10:54 AM 69.1 °F 55.0 °F 61% 29.94 in 10.0 mi SW 9.2 mph - N/A   Scattered Clouds
11:54 AM 71.1 °F 55.0 °F 57% 29.93 in 10.0 mi SW 12.7 mph - N/A   Partly Cloudy
12:54 PM 73.0 °F 55.0 °F 53% 29.92 in 10.0 mi SW 17.3 mph - N/A   Clear
1:54 PM 73.0 °F 55.0 °F 53% 29.90 in 10.0 mi SW 20.7 mph - N/A   Clear
2:54 PM 73.0 °F 54.0 °F 51% 29.89 in 10.0 mi SW 16.1 mph - N/A   Scattered Clouds
3:54 PM 73.0 °F 54.0 °F 51% 29.87 in 10.0 mi SSW 15.0 mph - N/A   Clear
5:54 PM 68.0 °F 55.0 °F 63% 29.86 in 10.0 mi SW 15.0 mph 21.9 mph N/A   Clear
7:54 PM 62.1 °F 53.1 °F 72% 29.89 in 10.0 mi WNW 8.1 mph - N/A   Clear
8:54 PM 59.0 °F 53.1 °F 81% 29.89 in 10.0 mi NW 4.6 mph - N/A   Clear
10:16 PM 57.2 °F 53.6 °F 88% 29.94 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
10:54 PM 60.1 °F 54.0 °F 80% 29.92 in 10.0 mi NW 5.8 mph - N/A   Overcast
11:24 PM 60.8 °F 53.6 °F 77% 29.95 in 10.0 mi West 4.6 mph - N/A   Overcast
11:54 PM 62.1 °F 55.0 °F 78% 29.92 in 10.0 mi West 4.6 mph - N/A   Overcast