Weather History for Napa County, CA

Change the Weather History Date:

Saturday, August 10, 2013

  Actual Average Record
Temperature  
Mean Temperature 67 °F 66 °F  
Max Temperature 77 °F 79 °F 93 °F (2002)
Min Temperature 56 °F 52 °F 47 °F (2003)
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 2    
Month to date cooling degree days 2  
Year to date cooling degree days 150  
Since 1 June cooling degree days 130  
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 54 °F    
Average Humidity 69    
Maximum Humidity 87    
Minimum Humidity 50    
Precipitation  
Precipitation 0.00 in - 0.04 in (1936)
Month to date precipitation 0.00  
Year to date precipitation 1.97  
Since 1 July precipitation 0.00  
Sea Level Pressure  
Sea Level Pressure 29.99 in    
Wind  
Wind Speed 10 mph (West)    
Max Wind Speed 21 mph    
Max Gust Speed 56 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:

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. 10, 2013 Rise Set
Actual Time 6:19 AM PDT 8:08 PM PDT
Civil Twilight 5:51 AM PDT 8:36 PM PDT
Nautical Twilight 5:16 AM PDT 9:11 PM PDT
Astronomical Twilight 4:39 AM PDT 9:48 PM PDT
Moon 10:07 AM PDT (8/10) 9:57 PM PDT (8/10)
Length of Visible Light 14h 45m
Length of Day
13h 48m
Waxing Crescent, 15% of the Moon is Illuminated
Aug 10
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 59.0 °F 54.0 °F 83% 29.98 in 10.0 mi West 11.5 mph - N/A   Overcast
1:54 AM 59.0 °F 54.0 °F 83% 29.97 in 10.0 mi West 15.0 mph - N/A   Overcast
2:54 AM 57.9 °F 54.0 °F 87% 29.98 in 10.0 mi West 13.8 mph - N/A   Overcast
3:47 AM 57.2 °F 53.6 °F 88% 30.00 in 10.0 mi West 9.2 mph - N/A   Overcast
3:54 AM 57.9 °F 53.1 °F 84% 29.97 in 10.0 mi West 10.4 mph - N/A   Overcast
4:54 AM 57.0 °F 53.1 °F 87% 29.97 in 10.0 mi West 10.4 mph - N/A   Overcast
5:32 AM 57.2 °F 53.6 °F 88% 30.00 in 10.0 mi West 9.2 mph - N/A   Overcast
5:54 AM 57.0 °F 53.1 °F 87% 29.98 in 10.0 mi West 10.4 mph - N/A   Overcast
6:54 AM 57.0 °F 52.0 °F 83% 29.99 in 10.0 mi WNW 9.2 mph - N/A   Overcast
7:21 AM 57.2 °F 53.6 °F 88% 30.02 in 10.0 mi WNW 8.1 mph - N/A   Overcast
7:54 AM 57.0 °F 53.1 °F 87% 30.00 in 10.0 mi West 4.6 mph - N/A   Overcast
8:54 AM 57.9 °F 53.1 °F 84% 30.01 in 10.0 mi WNW 4.6 mph - N/A   Overcast
9:49 AM 60.8 °F 53.6 °F 77% 30.04 in 10.0 mi NW 3.5 mph - N/A   Overcast
9:52 AM 60.8 °F 53.6 °F 77% 30.04 in 10.0 mi West 4.6 mph - N/A   Overcast
9:54 AM 60.1 °F 53.1 °F 78% 30.02 in 10.0 mi WNW 3.5 mph - N/A   Overcast
10:06 AM 60.8 °F 53.6 °F 77% 30.04 in 10.0 mi West 6.9 mph - N/A   Overcast
10:54 AM 64.0 °F 54.0 °F 70% 30.02 in 10.0 mi Variable 5.8 mph - N/A   Overcast
11:08 AM 64.4 °F 53.6 °F 68% 30.05 in 10.0 mi WSW 8.1 mph - N/A   Scattered Clouds
11:54 AM 69.1 °F 55.0 °F 61% 30.02 in 10.0 mi SW 8.1 mph - N/A   Scattered Clouds
12:54 PM 71.1 °F 55.9 °F 59% 30.00 in 10.0 mi SSW 10.4 mph - N/A   Clear
1:54 PM 73.0 °F 55.9 °F 55% 29.99 in 10.0 mi SSW 10.4 mph - N/A   Clear
2:54 PM 75.0 °F 57.0 °F 53% 29.98 in 10.0 mi South 15.0 mph - N/A   Clear
3:54 PM 75.0 °F 57.0 °F 53% 29.97 in 10.0 mi SSW 16.1 mph - N/A   Clear
4:54 PM 75.0 °F 55.9 °F 51% 29.96 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
5:05 PM 75.2 °F 55.4 °F 50% 29.99 in 10.0 mi West 16.1 mph - N/A   Clear
5:54 PM 71.1 °F 55.0 °F 57% 29.96 in 10.0 mi West 17.3 mph - N/A   Clear
6:54 PM 68.0 °F 55.0 °F 63% 29.96 in 10.0 mi West 16.1 mph - N/A   Clear
7:54 PM 63.0 °F 55.0 °F 75% 29.96 in 10.0 mi WSW 11.5 mph - N/A   Clear
8:54 PM 61.0 °F 55.0 °F 81% 29.97 in 10.0 mi WSW 8.1 mph - N/A   Clear
9:54 PM 59.0 °F 55.0 °F 87% 29.99 in 10.0 mi WSW 6.9 mph - N/A   Clear
10:54 PM 57.0 °F 54.0 °F 89% 29.99 in 10.0 mi West 6.9 mph - N/A   Clear
11:54 PM 57.0 °F 54.0 °F 89% 29.99 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy