Weather History for Napa County, CA

Change the Weather History Date:

Thursday, August 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 65 °F 65 °F  
Max Temperature 76 °F 79 °F 97 °F (2002)
Min Temperature 54 °F 52 °F 45 °F (2002)
Degree Days  
Heating Degree Days 0    
Month to date heating degree days 14  
Since 1 June heating degree days 64  
Since 1 July heating degree days 34  
Cooling Degree Days 0    
Month to date cooling degree days 0  
Year to date cooling degree days 148  
Since 1 June cooling degree days 128  
Growing Degree Days 15 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in - 0.00 in (2014)
Month to date precipitation 0.00  
Year to date precipitation 1.97  
Since 1 July precipitation 0.00  
Sea Level Pressure  
Sea Level Pressure 29.96 in    
Wind  
Wind Speed 10 mph (WSW)    
Max Wind Speed 20 mph    
Max Gust Speed -    
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:

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

Aug. 08, 2013 Rise Set
Actual Time 6:18 AM PDT 8:10 PM PDT
Civil Twilight 5:49 AM PDT 8:39 PM PDT
Nautical Twilight 5:14 AM PDT 9:14 PM PDT
Astronomical Twilight 4:37 AM PDT 9:51 PM PDT
Moon 8:07 AM PDT (8/8) 8:55 PM PDT (8/8)
Length of Visible Light 14h 50m
Length of Day
13h 52m
Waxing Crescent, 3% of the Moon is Illuminated
Aug 8
Waxing Crescent
Aug 14
First Quarter
Aug 20
Full
Aug 28
Last Quarter
Sep 5
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 55.0 °F 83% 30.01 in 10.0 mi WSW 11.5 mph - N/A   Overcast
1:54 AM 60.1 °F 54.0 °F 80% 30.00 in 10.0 mi West 9.2 mph - N/A   Overcast
2:54 AM 59.0 °F 54.0 °F 83% 29.99 in 10.0 mi West 9.2 mph - N/A   Overcast
3:54 AM 59.0 °F 53.1 °F 81% 29.98 in 10.0 mi West 9.2 mph - N/A   Overcast
4:54 AM 59.0 °F 54.0 °F 83% 29.97 in 10.0 mi West 8.1 mph - N/A   Overcast
5:54 AM 57.0 °F 53.1 °F 87% 29.98 in 10.0 mi West 8.1 mph - N/A   Overcast
6:54 AM 57.9 °F 53.1 °F 84% 29.99 in 10.0 mi West 9.2 mph - N/A   Overcast
7:54 AM 59.0 °F 53.1 °F 81% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
8:46 AM 62.6 °F 53.6 °F 72% 30.02 in 10.0 mi WSW 6.9 mph - N/A   Mostly Cloudy
8:54 AM 62.1 °F 52.0 °F 70% 30.00 in 10.0 mi WNW 6.9 mph - N/A   Overcast
9:54 AM 64.0 °F 53.1 °F 67% 29.99 in 10.0 mi West 8.1 mph - N/A   Overcast
10:54 AM 68.0 °F 53.1 °F 59% 29.99 in 10.0 mi WSW 8.1 mph - N/A   Mostly Cloudy
11:12 AM 68.0 °F 53.6 °F 60% 30.01 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
11:54 AM 70.0 °F 54.0 °F 57% 29.98 in 10.0 mi South 8.1 mph - N/A   Clear
12:54 PM 71.1 °F 54.0 °F 55% 29.96 in 10.0 mi South 10.4 mph - N/A   Clear
1:54 PM 73.0 °F 55.0 °F 53% 29.95 in 10.0 mi SSW 12.7 mph - N/A   Clear
2:54 PM 75.9 °F 55.0 °F 48% 29.94 in 10.0 mi South 13.8 mph - N/A   Clear
3:54 PM 75.0 °F 55.0 °F 50% 29.93 in 10.0 mi SSW 15.0 mph - N/A   Clear
4:54 PM 73.9 °F 55.0 °F 52% 29.92 in 10.0 mi SSW 13.8 mph - N/A   Clear
5:54 PM 72.0 °F 52.0 °F 49% 29.91 in 10.0 mi West 16.1 mph - N/A   Clear
6:54 PM 64.0 °F 52.0 °F 65% 29.91 in 10.0 mi West 19.6 mph - N/A   Clear
7:54 PM 60.1 °F 52.0 °F 75% 29.91 in 10.0 mi West 15.0 mph - N/A   Clear
8:54 PM 57.0 °F 51.1 °F 81% 29.92 in 10.0 mi WSW 9.2 mph - N/A   Clear
9:54 PM 55.0 °F 51.1 °F 86% 29.94 in 10.0 mi SW 9.2 mph - N/A   Clear
10:54 PM 55.0 °F 52.0 °F 89% 29.94 in 10.0 mi WSW 11.5 mph - N/A   Clear
11:54 PM 54.0 °F 51.1 °F 90% 29.94 in 10.0 mi WSW 5.8 mph - N/A   Scattered Clouds