Weather History for Dayton, OH

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Sunday, December 30, 2012

  Actual Average Record
Temperature  
Mean Temperature 23 °F 28 °F  
Max Temperature 26 °F 35 °F 63 °F (1972)
Min Temperature 20 °F 21 °F -9 °F (1983)
Degree Days  
Heating Degree Days 42 37  
Month to date heating degree days 783 1011  
Since 1 July heating degree days 1998 2122  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1264 891  
Moisture  
Dew Point 18 °F    
Average Humidity 80    
Maximum Humidity 92    
Minimum Humidity 68    
Precipitation  
Precipitation T in 0.10 in 2.85 in (1990)
Month to date precipitation 3.76 3.02  
Year to date precipitation 32.58 40.95  
Snow  
Snow T in 0.20 in 5.40 in (1973)
Month to date snowfall 10.7 4.3  
Since 1 July snowfall 11.6 5.3  
Snow Depth 6.00 in    
Sea Level Pressure  
Sea Level Pressure 30.37 in    
Wind  
Wind Speed 12 mph (WSW)    
Max Wind Speed 23 mph    
Max Gust Speed 29 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Dec. 30, 2012 Rise Set
Actual Time 7:58 AM EST 5:21 PM EST
Civil Twilight 7:27 AM EST 5:51 PM EST
Nautical Twilight 6:53 AM EST 6:25 PM EST
Astronomical Twilight 6:21 AM EST 6:58 PM EST
Moon 7:51 PM EST 9:06 AM EST
Length of Visible Light 10h 23m
Length of Day
9h 23m
Waning Gibbous, 95% of the Moon is Illuminated
Dec 30
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 25.0 °F 12.6 °F 21.0 °F 85% 30.21 in 7.0 mi WNW 15.0 mph - 0.00 in   Overcast
1:56 AM 25.0 °F 10.2 °F 21.0 °F 85% 30.23 in 7.0 mi West 21.9 mph 28.8 mph N/A   Overcast
2:56 AM 24.1 °F 10.6 °F 19.9 °F 84% 30.26 in 7.0 mi WNW 17.3 mph - N/A   Overcast
3:56 AM 23.0 °F 10.6 °F 19.0 °F 85% 30.30 in 7.0 mi West 13.8 mph - N/A   Overcast
4:56 AM 21.9 °F 9.2 °F 19.0 °F 89% 30.32 in 8.0 mi West 13.8 mph - N/A   Overcast
5:56 AM 21.9 °F 10.4 °F 19.0 °F 89% 30.35 in 8.0 mi West 11.5 mph - N/A   Overcast
6:45 AM 21.2 °F 8.3 °F 17.6 °F 86% 30.33 in 8.0 mi West 13.8 mph - N/A   Overcast
6:56 AM 21.9 °F 10.4 °F 18.0 °F 85% 30.38 in 9.0 mi West 11.5 mph - N/A   Overcast
7:56 AM 21.0 °F 7.1 °F 17.1 °F 85% 30.40 in 9.0 mi WSW 16.1 mph - N/A   Overcast
8:19 AM 21.2 °F 9.5 °F 17.6 °F 86% 30.36 in 8.0 mi West 11.5 mph - N/A   Overcast
8:56 AM 21.0 °F 9.3 °F 16.0 °F 81% 30.42 in 9.0 mi West 11.5 mph - N/A   Overcast
9:56 AM 21.0 °F 8.1 °F 17.1 °F 85% 30.44 in 7.0 mi WSW 13.8 mph - N/A   Overcast
10:56 AM 19.9 °F 7.3 °F 16.0 °F 85% 30.45 in 8.0 mi WSW 12.7 mph - N/A   Mostly Cloudy
11:07 AM 21.2 °F 8.9 °F 15.8 °F 80% 30.41 in 8.0 mi SW 12.7 mph - N/A   Scattered Clouds
11:56 AM 21.9 °F 9.8 °F 16.0 °F 78% 30.45 in 9.0 mi WSW 12.7 mph - N/A   Clear
12:56 PM 24.1 °F 13.1 °F 16.0 °F 71% 30.43 in 10.0 mi WSW 11.5 mph - N/A   Clear
1:56 PM 24.1 °F 13.1 °F 16.0 °F 71% 30.41 in 10.0 mi WSW 11.5 mph - N/A   Clear
2:56 PM 25.0 °F 13.6 °F 17.1 °F 72% 30.42 in 9.0 mi WSW 12.7 mph - N/A   Scattered Clouds
3:56 PM 25.0 °F 14.8 °F 16.0 °F 69% 30.39 in 9.0 mi SW 10.4 mph - N/A   Scattered Clouds
4:56 PM 25.0 °F 16.3 °F 16.0 °F 69% 30.39 in 9.0 mi South 8.1 mph - N/A   Mostly Cloudy
5:56 PM 24.1 °F 16.0 °F 16.0 °F 71% 30.40 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
6:56 PM 23.0 °F 13.1 °F 15.1 °F 72% 30.41 in 10.0 mi SSW 9.2 mph - N/A   Scattered Clouds
7:56 PM 24.1 °F 12.5 °F 17.1 °F 75% 30.41 in 10.0 mi SSW 12.7 mph - N/A   Partly Cloudy
8:56 PM 24.1 °F 13.1 °F 17.1 °F 75% 30.39 in 10.0 mi SSW 11.5 mph - N/A   Scattered Clouds
9:56 PM 24.1 °F 14.4 °F 18.0 °F 77% 30.36 in 9.0 mi SSW 9.2 mph - N/A   Mostly Cloudy
10:56 PM 24.1 °F 13.7 °F 19.0 °F 81% 30.36 in 8.0 mi South 10.4 mph - N/A   Mostly Cloudy
11:56 PM 24.1 °F 13.7 °F 19.0 °F 81% 30.36 in 8.0 mi SSW 10.4 mph - N/A   Mostly Cloudy