Weather History for Rockford, IL

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Monday, January 21, 2013

  Actual Average Record
Temperature  
Mean Temperature 7 °F 21 °F  
Max Temperature 12 °F 29 °F 60 °F (1906)
Min Temperature 2 °F 13 °F -22 °F (1970)
Degree Days  
Heating Degree Days 58 44  
Month to date heating degree days 839 918  
Since 1 July heating degree days 3170 3479  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point -6 °F    
Average Humidity 57    
Maximum Humidity 69    
Minimum Humidity 45    
Precipitation  
Precipitation T in 0.04 in 0.88 in (1916)
Month to date precipitation 1.27 0.96  
Year to date precipitation 1.27 0.96  
Snow  
Snow T in 0.30 in 6.40 in (2005)
Month to date snowfall 0.6 7.0  
Since 1 July snowfall 2.7 20.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 16 mph (WNW)    
Max Wind Speed 24 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 21, 2013 Rise Set
Actual Time 7:18 AM CST 4:57 PM CST
Civil Twilight 6:48 AM CST 5:27 PM CST
Nautical Twilight 6:14 AM CST 6:01 PM CST
Astronomical Twilight 5:40 AM CST 6:35 PM CST
Moon 12:36 PM CST (1/21) 2:47 AM CST (1/21)
Length of Visible Light 10h 39m
Length of Day
9h 38m
Waxing Gibbous, 75% of the Moon is Illuminated
Jan 21
Waxing Gibbous
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New
Feb 17
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 12.0 °F -2.0 °F 3.0 °F 67% 30.24 in 9.0 mi WNW 11.5 mph - 0.00 in Snow Light Snow
1:54 AM 12.0 °F -3.4 °F 1.9 °F 64% 30.24 in 9.0 mi WNW 13.8 mph - 0.00 in   Overcast
2:54 AM 12.0 °F -2.7 °F -0.0 °F 59% 30.22 in 9.0 mi WNW 12.7 mph - 0.00 in Snow Light Snow
3:54 AM 10.0 °F -5.2 °F -0.9 °F 61% 30.21 in 10.0 mi WNW 12.7 mph - 0.00 in   Scattered Clouds
4:54 AM 9.0 °F -8.5 °F -2.9 °F 59% 30.21 in 10.0 mi WNW 16.1 mph 24.2 mph N/A   Partly Cloudy
5:54 AM 7.0 °F -10.4 °F -2.0 °F 67% 30.20 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Partly Cloudy
6:54 AM 5.0 °F -13.0 °F -5.1 °F 63% 30.22 in 10.0 mi WNW 15.0 mph - N/A   Partly Cloudy
7:54 AM 3.9 °F -17.1 °F -6.0 °F 64% 30.24 in 10.0 mi NW 20.7 mph 28.8 mph N/A   Scattered Clouds
8:54 AM 3.9 °F -17.1 °F -7.1 °F 60% 30.27 in 10.0 mi NW 20.7 mph 26.5 mph N/A   Scattered Clouds
9:54 AM 5.0 °F -14.2 °F -7.1 °F 58% 30.28 in 10.0 mi NW 17.3 mph 24.2 mph N/A   Partly Cloudy
10:54 AM 6.1 °F -13.3 °F -9.0 °F 50% 30.29 in 10.0 mi NW 18.4 mph 28.8 mph N/A   Partly Cloudy
11:54 AM 8.1 °F -10.2 °F -8.0 °F 48% 30.28 in 10.0 mi WNW 17.3 mph 28.8 mph N/A   Partly Cloudy
12:54 PM 8.1 °F -10.2 °F -9.9 °F 44% 30.26 in 10.0 mi NW 17.3 mph 26.5 mph N/A   Partly Cloudy
1:54 PM 10.0 °F -8.1 °F -8.0 °F 44% 30.25 in 10.0 mi WNW 18.4 mph 24.2 mph N/A   Partly Cloudy
2:54 PM 9.0 °F -10.0 °F -9.0 °F 44% 30.26 in 10.0 mi WNW 19.6 mph 28.8 mph N/A   Partly Cloudy
3:54 PM 8.1 °F -12.2 °F -9.0 °F 46% 30.27 in 10.0 mi WNW 21.9 mph 26.5 mph N/A   Clear
4:54 PM 6.8 °F -11.8 °F -9.4 °F 48% 30.22 in 10.0 mi WNW 17.3 mph - N/A   Clear
5:54 PM 5.0 °F -13.0 °F -9.0 °F 52% 30.30 in 10.0 mi NW 15.0 mph - N/A   Clear
6:54 PM 3.9 °F -11.3 °F -8.0 °F 58% 30.31 in 10.0 mi WNW 10.4 mph - N/A   Clear
7:54 PM 3.9 °F -13.0 °F -8.0 °F 58% 30.32 in 10.0 mi WNW 12.7 mph - N/A   Clear
8:54 PM 3.0 °F -12.5 °F -7.1 °F 63% 30.33 in 10.0 mi West 10.4 mph - N/A   Clear
9:54 PM 3.0 °F -14.8 °F -7.1 °F 63% 30.33 in 10.0 mi WNW 13.8 mph - N/A   Clear
10:54 PM 3.0 °F -15.5 °F -8.0 °F 60% 30.34 in 10.0 mi WNW 15.0 mph - N/A   Clear
11:54 PM 1.9 °F -16.2 °F -8.0 °F 63% 30.34 in 10.0 mi NW 13.8 mph 21.9 mph N/A   Clear