Weather History for Dayton, OH

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Thursday, December 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 42 °F 30 °F  
Max Temperature 51 °F 37 °F 63 °F (1895)
Min Temperature 32 °F 23 °F -12 °F (1963)
Degree Days  
Heating Degree Days 23 35  
Month to date heating degree days 421 648  
Since 1 July heating degree days 1636 1759  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1264 891  
Moisture  
Dew Point 40 °F    
Average Humidity 88    
Maximum Humidity 100    
Minimum Humidity 76    
Precipitation  
Precipitation 0.80 in 0.10 in 0.99 in (1903)
Month to date precipitation 2.71 1.99  
Year to date precipitation 31.53 39.92  
Snow  
Snow T in 0.20 in 5.10 in (1960)
Month to date snowfall T 2.5  
Since 1 July snowfall 0.9 3.5  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.49 in    
Wind  
Wind Speed 22 mph (South)    
Max Wind Speed 39 mph    
Max Gust Speed 51 mph    
Visibility 6 miles    
Events Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:54 AM EST 5:14 PM EST
Civil Twilight 7:24 AM EST 5:45 PM EST
Nautical Twilight 6:50 AM EST 6:19 PM EST
Astronomical Twilight 6:17 AM EST 6:52 PM EST
Moon 12:32 PM EST (12/20) 12:41 AM EST (12/20)
Length of Visible Light 10h 21m
Length of Day
9h 20m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

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 42.1 °F 34.2 °F 35.1 °F 76% 29.95 in 7.0 mi ESE 16.1 mph - N/A   Scattered Clouds
1:56 AM 42.1 °F 34.5 °F 36.0 °F 79% 29.94 in 8.0 mi SE 15.0 mph - N/A   Mostly Cloudy
2:56 AM 42.1 °F 33.3 °F 36.0 °F 79% 29.88 in 9.0 mi ESE 19.6 mph 26.5 mph N/A   Overcast
3:56 AM 43.0 °F 34.2 °F 36.0 °F 76% 29.83 in 10.0 mi SE 20.7 mph - N/A   Overcast
4:56 AM 43.0 °F 34.5 °F 36.0 °F 76% 29.77 in 10.0 mi SE 19.6 mph - N/A   Overcast
5:56 AM 43.0 °F 34.8 °F 36.0 °F 76% 29.71 in 10.0 mi SE 18.4 mph - N/A   Overcast
6:56 AM 43.0 °F 35.7 °F 37.0 °F 80% 29.67 in 10.0 mi SE 15.0 mph - N/A   Overcast
7:56 AM 44.1 °F 37.7 °F 37.0 °F 76% 29.65 in 10.0 mi SE 12.7 mph 23.0 mph N/A   Overcast
8:56 AM 44.1 °F 35.2 °F 41.0 °F 89% 29.56 in 4.0 mi SE 23.0 mph 32.2 mph 0.11 in Rain Rain
9:56 AM 46.9 °F - 46.0 °F 97% 29.57 in 2.5 mi SSE 18.4 mph 31.1 mph 0.16 in Rain Rain
10:14 AM 46.4 °F 38.7 °F 44.6 °F 93% 29.54 in 1.8 mi SSE 20.7 mph 29.9 mph 0.12 in Rain Heavy Rain
10:20 AM 46.4 °F 39.2 °F 44.6 °F 93% 29.56 in 2.5 mi SSE 18.4 mph 29.9 mph 0.15 in Rain Rain
10:49 AM 46.4 °F 40.4 °F 46.4 °F 100% 29.56 in 3.0 mi South 13.8 mph 20.7 mph 0.25 in Rain Rain
10:56 AM 46.9 °F - 46.0 °F 97% 29.57 in 4.0 mi South 13.8 mph 21.9 mph 0.26 in Rain Rain
11:56 AM 48.0 °F - 46.0 °F 93% 29.53 in 5.0 mi South 16.1 mph - 0.08 in Rain Light Rain
12:25 PM 48.2 °F - 46.4 °F 93% 29.47 in 5.0 mi SSE 17.3 mph - 0.04 in Rain Light Rain
12:49 PM 48.2 °F - 46.4 °F 93% 29.43 in 5.0 mi SSE 16.1 mph - 0.06 in Rain Light Rain
12:56 PM 48.0 °F - 46.9 °F 96% 29.44 in 4.0 mi SSE 16.1 mph - 0.07 in Rain Rain
1:13 PM 48.2 °F - 48.2 °F 100% 29.36 in 3.0 mi SE 23.0 mph 28.8 mph 0.02 in Rain Rain
1:44 PM 48.2 °F - 48.2 °F 100% 29.32 in 10.0 mi SSE 26.5 mph 32.2 mph 0.05 in Rain Light Rain
1:56 PM 48.9 °F - 48.9 °F 100% 29.33 in 10.0 mi SSE 24.2 mph 33.4 mph 0.05 in   Overcast
2:22 PM 50.0 °F - 46.4 °F 87% 29.31 in 8.0 mi South 25.3 mph 34.5 mph 0.00 in Rain Light Rain
2:56 PM 50.0 °F - 48.0 °F 93% 29.31 in 6.0 mi South 25.3 mph 38.0 mph 0.00 in Rain Light Rain
3:47 PM 51.8 °F - 48.2 °F 88% 29.26 in 5.0 mi South 20.7 mph 29.9 mph 0.02 in Rain Rain
3:56 PM 50.0 °F - 46.9 °F 89% 29.26 in 10.0 mi South 17.3 mph 29.9 mph 0.03 in Rain Light Rain
4:43 PM 51.8 °F - 46.4 °F 82% 29.23 in 10.0 mi South 23.0 mph 35.7 mph 0.00 in   Overcast
4:53 PM 50.0 °F - 44.6 °F 82% 29.25 in 2.5 mi SSW 32.2 mph 42.6 mph 0.01 in Rain Rain
4:56 PM 48.9 °F - 45.0 °F 86% 29.25 in 2.0 mi SSW 25.3 mph 43.7 mph 0.01 in Rain Heavy Rain
5:04 PM 48.2 °F - 44.6 °F 87% 29.25 in 3.0 mi SSW 24.2 mph 41.4 mph 0.03 in Rain Light Rain
5:56 PM 45.0 °F 35.1 °F 35.1 °F 68% 29.30 in 10.0 mi SW 31.1 mph 41.4 mph 0.03 in   Overcast
6:56 PM 39.0 °F 26.6 °F 32.0 °F 76% 29.36 in 10.0 mi SW 33.4 mph 50.6 mph 0.00 in Rain Light Rain
7:56 PM 36.0 °F 23.5 °F 30.0 °F 79% 29.39 in 7.0 mi SSW 27.6 mph 43.7 mph 0.00 in Snow Light Snow
8:56 PM 36.0 °F 23.0 °F 26.1 °F 67% 29.40 in 10.0 mi SW 29.9 mph 48.3 mph 0.00 in   Overcast
9:48 PM 33.8 °F 20.1 °F 28.4 °F 81% 29.38 in 2.5 mi SW 29.9 mph 47.2 mph 0.00 in Snow Light Snow
9:56 PM 33.1 °F 19.6 °F 28.0 °F 82% 29.40 in 2.0 mi SSW 27.6 mph 42.6 mph 0.00 in Snow Light Snow
10:12 PM 33.8 °F 20.5 °F 28.4 °F 81% 29.38 in 6.0 mi SSW 27.6 mph 47.2 mph 0.00 in Snow Light Snow
10:56 PM 32.0 °F 17.9 °F 27.0 °F 82% 29.40 in 4.0 mi SW 28.8 mph 40.3 mph 0.00 in Snow Light Snow
11:56 PM 32.0 °F 17.0 °F 27.0 °F 82% 29.41 in 6.0 mi SW 33.4 mph 47.2 mph 0.00 in Snow Light Snow