Weather History for Rockford, IL

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Thursday, February 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 19 °F 28 °F  
Max Temperature 27 °F 36 °F 64 °F (1930)
Min Temperature 10 °F 20 °F -10 °F (1963)
Degree Days  
Heating Degree Days 46 37  
Month to date heating degree days 895 844  
Since 1 July heating degree days 4480 4753  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 18 °F    
Average Humidity 86    
Maximum Humidity 92    
Minimum Humidity 80    
Precipitation  
Precipitation 0.09 in 0.05 in 1.25 in (1913)
Month to date precipitation 2.25 0.98  
Year to date precipitation 5.34 2.35  
Snow  
Snow 1.00 in 0.30 in 6.00 in (1913)
Month to date snowfall 13.5 6.1  
Since 1 July snowfall 18.3 29.4  
Snow Depth 1.00 in    
Sea Level Pressure  
Sea Level Pressure 30.23 in    
Wind  
Wind Speed 10 mph (ENE)    
Max Wind Speed 23 mph    
Max Gust Speed 31 mph    
Visibility 8 miles    
Events Fog , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 21, 2013 Rise Set
Actual Time 6:43 AM CST 5:36 PM CST
Civil Twilight 6:15 AM CST 6:05 PM CST
Nautical Twilight 5:42 AM CST 6:37 PM CST
Astronomical Twilight 5:10 AM CST 7:10 PM CST
Moon 1:48 PM CST (2/21) 3:51 AM CST (2/21)
Length of Visible Light 11h 50m
Length of Day
10h 53m
Waxing Gibbous, 84% of the Moon is Illuminated
Feb 21
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 10.9 °F - 8.1 °F 88% 30.42 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:54 AM 10.9 °F - 8.1 °F 88% 30.42 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:54 AM 12.9 °F 5.2 °F 9.0 °F 84% 30.40 in 10.0 mi North 4.6 mph - N/A   Overcast
3:54 AM 12.0 °F - 8.1 °F 84% 30.43 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:54 AM 12.0 °F 2.7 °F 8.1 °F 84% 30.41 in 10.0 mi NE 5.8 mph - N/A   Scattered Clouds
5:52 AM 12.2 °F 6.1 °F 8.6 °F 85% 30.36 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
5:54 AM 12.9 °F 5.2 °F 9.0 °F 84% 30.39 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
6:54 AM 17.1 °F 7.6 °F 12.0 °F 81% 30.40 in 10.0 mi NNE 6.9 mph - N/A   Overcast
7:54 AM 18.0 °F 7.7 °F 14.0 °F 84% 30.43 in 10.0 mi NNE 8.1 mph - 0.00 in Snow Light Snow
8:54 AM 19.9 °F 10.1 °F 15.1 °F 81% 30.42 in 10.0 mi NNE 8.1 mph - 0.00 in   Overcast
9:22 AM 21.2 °F 9.5 °F 15.8 °F 80% 30.34 in 10.0 mi NNE 11.5 mph - 0.00 in Snow Light Snow
9:54 AM 21.9 °F 10.4 °F 17.1 °F 82% 30.40 in 10.0 mi NNE 11.5 mph - 0.00 in   Overcast
10:54 AM 23.0 °F 11.1 °F 18.0 °F 81% 30.37 in 10.0 mi NE 12.7 mph - 0.00 in Snow Light Snow
11:54 AM 24.1 °F 12.5 °F 19.0 °F 81% 30.35 in 10.0 mi NNE 12.7 mph - 0.00 in   Overcast
12:54 PM 26.1 °F 15.0 °F 21.0 °F 81% 30.30 in 10.0 mi NE 12.7 mph 19.6 mph N/A   Overcast
1:54 PM 26.1 °F 14.5 °F 21.9 °F 84% 30.27 in 10.0 mi NE 13.8 mph 19.6 mph N/A   Overcast
2:54 PM 27.0 °F 18.0 °F 21.9 °F 81% 30.27 in 10.0 mi ENE 9.2 mph - N/A   Overcast
3:54 PM 27.0 °F 13.5 °F 24.1 °F 89% 30.24 in 10.0 mi East 19.6 mph - 0.00 in Snow Light Snow
4:54 PM 27.0 °F 16.1 °F 24.1 °F 89% 30.21 in 10.0 mi ENE 12.7 mph - 0.00 in Snow Light Snow
5:18 PM 26.6 °F 14.7 °F 23.0 °F 86% 30.15 in 10.0 mi ENE 15.0 mph - 0.00 in Snow Light Snow
5:54 PM 27.0 °F 14.7 °F 23.0 °F 85% 30.16 in 10.0 mi East 16.1 mph 26.5 mph 0.00 in Snow Light Snow
6:54 PM 27.0 °F 15.2 °F 21.9 °F 81% 30.14 in 10.0 mi East 15.0 mph 28.8 mph 0.00 in   Overcast
7:43 PM 26.6 °F 13.1 °F 21.2 °F 80% 30.08 in 10.0 mi East 19.6 mph 27.6 mph N/A   Overcast
7:54 PM 27.0 °F 15.2 °F 21.9 °F 81% 30.09 in 10.0 mi East 15.0 mph 26.5 mph N/A   Overcast
8:54 PM 27.0 °F 14.7 °F 21.0 °F 78% 30.06 in 10.0 mi East 16.1 mph 24.2 mph N/A   Overcast
9:54 PM 27.0 °F 15.6 °F 21.0 °F 78% 30.07 in 10.0 mi East 13.8 mph 20.7 mph 0.00 in Snow Light Snow
10:36 PM 26.6 °F 14.3 °F 21.2 °F 80% 30.01 in 1.5 mi ENE 16.1 mph 21.9 mph 0.00 in Snow Light Snow
10:41 PM 26.6 °F 13.4 °F 21.2 °F 80% 30.00 in 0.8 mi East 18.4 mph 23.0 mph 0.00 in Snow Light Snow
10:54 PM 26.1 °F 15.0 °F 24.1 °F 92% 30.03 in 0.5 mi East 12.7 mph - 0.02 in Fog , Snow Snow
11:38 PM 26.6 °F 13.4 °F 24.8 °F 93% 29.95 in 1.0 mi East 18.4 mph 25.3 mph 0.06 in Snow Light Snow
11:46 PM 26.6 °F 13.8 °F 24.8 °F 93% 29.94 in 0.8 mi ENE 17.3 mph 24.2 mph 0.07 in Snow Light Snow
11:54 PM 26.1 °F 14.0 °F 24.1 °F 92% 29.98 in 0.5 mi East 15.0 mph 24.2 mph 0.07 in Fog , Snow Snow