Weather History for Dayton, OH

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Saturday, December 17, 2011

  Actual Average Record
Temperature  
Mean Temperature 31 °F 30 °F  
Max Temperature 33 °F 37 °F 66 °F (1984)
Min Temperature 28 °F 24 °F -7 °F (1989)
Degree Days  
Heating Degree Days 34 35  
Month to date heating degree days 509 543  
Since 1 July heating degree days 1516 1654  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1160 891  
Moisture  
Dew Point 24 °F    
Average Humidity 74    
Maximum Humidity 85    
Minimum Humidity 63    
Precipitation  
Precipitation T in 0.09 in 1.77 in (2001)
Month to date precipitation 3.30 1.71  
Year to date precipitation 54.68 39.64  
Snow  
Snow T in 0.20 in 6.20 in (1981)
Month to date snowfall 0.1 2.0  
Since 1 July snowfall 1.1 3.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 6 mph (West)    
Max Wind Speed 13 mph    
Max Gust Speed 14 mph    
Visibility 9 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 17, 2011 Rise Set
Actual Time 7:52 AM EST 5:13 PM EST
Civil Twilight 7:21 AM EST 5:43 PM EST
Nautical Twilight 6:47 AM EST 6:17 PM EST
Astronomical Twilight 6:14 AM EST 6:50 PM EST
Moon No Moon Rise 12:07 PM EST (12/17)
Length of Visible Light 10h 21m
Length of Day
9h 20m
Waning Gibbous, 54% of the Moon is Illuminated
Dec 17
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 30.2 °F 25.4 °F 23.0 °F 75% 30.29 in 10.0 mi North 4.6 mph - N/A   Overcast
12:56 AM 30.0 °F 21.7 °F 23.0 °F 75% 30.34 in 10.0 mi NNW 9.2 mph - N/A   Overcast
1:56 AM 30.0 °F 24.1 °F 21.0 °F 69% 30.33 in 10.0 mi NNW 5.8 mph - N/A   Overcast
2:56 AM 30.0 °F 23.2 °F 21.0 °F 69% 30.34 in 10.0 mi NNW 6.9 mph - N/A   Overcast
3:56 AM 30.0 °F 23.2 °F 19.9 °F 66% 30.32 in 10.0 mi NW 6.9 mph - N/A   Overcast
4:56 AM 28.9 °F 22.8 °F 19.0 °F 67% 30.33 in 10.0 mi NNW 5.8 mph - N/A   Overcast
5:42 AM 28.4 °F 22.2 °F 19.4 °F 69% 30.31 in 10.0 mi NW 5.8 mph - N/A   Overcast
5:56 AM 28.9 °F 25.2 °F 19.9 °F 69% 30.33 in 10.0 mi NW 3.5 mph - N/A   Overcast
6:56 AM 28.9 °F 23.9 °F 21.0 °F 72% 30.35 in 10.0 mi West 4.6 mph - N/A   Overcast
7:29 AM 28.4 °F 22.2 °F 21.2 °F 74% 30.31 in 10.0 mi West 5.8 mph - N/A   Overcast
7:56 AM 28.0 °F 22.8 °F 21.0 °F 75% 30.34 in 10.0 mi West 4.6 mph - N/A   Overcast
8:56 AM 28.9 °F 22.8 °F 21.0 °F 72% 30.34 in 10.0 mi West 5.8 mph - N/A   Overcast
9:56 AM 30.0 °F 23.2 °F 21.0 °F 69% 30.34 in 10.0 mi West 6.9 mph - N/A   Overcast
10:56 AM 30.0 °F 22.4 °F 23.0 °F 75% 30.35 in 4.0 mi West 8.1 mph - 0.00 in Snow Light Snow
11:25 AM 30.2 °F 21.9 °F 24.8 °F 80% 30.30 in 9.0 mi WSW 9.2 mph - 0.00 in   Overcast
11:56 AM 30.9 °F 23.5 °F 23.0 °F 72% 30.31 in 9.0 mi WSW 8.1 mph - 0.00 in   Overcast
12:19 PM 30.2 °F 21.9 °F 23.0 °F 75% 30.28 in 7.0 mi SSW 9.2 mph - 0.00 in Snow Light Snow
12:33 PM 30.2 °F 22.6 °F 23.0 °F 75% 30.27 in 3.0 mi SW 8.1 mph - 0.00 in Snow Light Snow
12:46 PM 32.0 °F 23.6 °F 24.8 °F 75% 30.26 in 4.0 mi SW 10.4 mph - 0.00 in Snow Light Snow
12:56 PM 32.0 °F 24.8 °F 25.0 °F 75% 30.29 in 5.0 mi SW 8.1 mph - 0.00 in Snow Light Snow
1:18 PM 32.0 °F 24.8 °F 24.8 °F 75% 30.26 in 6.0 mi WSW 8.1 mph - 0.00 in Snow Light Snow
1:41 PM 30.2 °F 20.8 °F 24.8 °F 80% 30.26 in 2.0 mi WSW 11.5 mph - 0.00 in Snow Light Snow
1:56 PM 30.9 °F 21.7 °F 26.1 °F 82% 30.29 in 4.0 mi West 11.5 mph - 0.00 in Snow Light Snow
2:56 PM 33.1 °F 25.5 °F 26.1 °F 75% 30.27 in 10.0 mi West 9.2 mph - 0.00 in   Overcast
3:09 PM 32.0 °F 24.2 °F 24.8 °F 75% 30.23 in 10.0 mi West 9.2 mph - N/A   Overcast
3:56 PM 33.1 °F 27.7 °F 25.0 °F 72% 30.25 in 10.0 mi WSW 5.8 mph - N/A   Overcast
4:56 PM 33.1 °F - 25.0 °F 72% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
5:56 PM 32.0 °F 28.7 °F 25.0 °F 75% 30.25 in 10.0 mi WNW 3.5 mph - N/A   Overcast
6:56 PM 32.0 °F 28.7 °F 26.1 °F 79% 30.27 in 10.0 mi West 3.5 mph - N/A   Overcast
7:56 PM 32.0 °F 28.7 °F 26.1 °F 79% 30.26 in 10.0 mi SW 3.5 mph - N/A   Overcast
8:56 PM 32.0 °F 27.5 °F 26.1 °F 79% 30.25 in 10.0 mi WSW 4.6 mph - N/A   Overcast
9:47 PM 32.0 °F 27.5 °F 26.6 °F 80% 30.21 in 10.0 mi WSW 4.6 mph - N/A   Overcast
9:56 PM 32.0 °F 27.5 °F 26.1 °F 79% 30.25 in 10.0 mi WSW 4.6 mph - N/A   Overcast
10:56 PM 32.0 °F 28.7 °F 27.0 °F 82% 30.25 in 9.0 mi West 3.5 mph - 0.00 in Snow Light Snow
11:56 PM 32.0 °F 26.4 °F 27.0 °F 82% 30.24 in 10.0 mi WSW 5.8 mph - 0.00 in   Overcast