Weather History for Alton, IL

Change the Weather History Date:

Tuesday, February 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 38 °F -  
Max Temperature 46 °F 42 °F 59 °F (2005)
Min Temperature 30 °F 28 °F -1 °F (2014)
Degree Days  
Heating Degree Days 27    
Moisture  
Dew Point 29 °F    
Average Humidity 75    
Maximum Humidity 88    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.09 in    
Wind  
Wind Speed 1 mph (NW)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Feb. 12, 2013 Rise Set
Actual Time 6:54 AM CST 5:34 PM CST
Civil Twilight 6:27 AM CST 6:02 PM CST
Nautical Twilight 5:55 AM CST 6:33 PM CST
Astronomical Twilight 5:24 AM CST 7:04 PM CST
Moon 7:53 AM CST (2/12) 8:33 PM CST (2/12)
Length of Visible Light 11h 34m
Length of Day
10h 39m
Waxing Crescent, 7% of the Moon is Illuminated
Feb 12
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (CST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 36.5 °F 33.9 °F 28.9 °F 74% 30.16 in 10.0 mi WNW 3.5 mph - N/A   Clear
12:35 AM 34.7 °F - 28.0 °F 77% 30.16 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 35.1 °F - 28.6 °F 77% 30.15 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 35.1 °F - 28.8 °F 78% 30.16 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 35.6 °F - 28.4 °F 75% 30.16 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 35.2 °F - 28.4 °F 76% 30.16 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 34.3 °F - 28.0 °F 78% 30.16 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 33.4 °F - 27.5 °F 79% 30.16 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 33.6 °F - 28.8 °F 82% 30.16 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 33.1 °F - 27.3 °F 79% 30.16 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 30.6 °F - 25.5 °F 82% 30.16 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 31.6 °F - 27.7 °F 85% 30.15 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 31.8 °F - 28.0 °F 86% 30.15 in 7.0 mi Calm Calm - N/A   Clear
4:35 AM 31.6 °F - 28.2 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 30.9 °F - 27.9 °F 88% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 31.3 °F - 28.0 °F 88% 30.15 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 30.9 °F - 27.5 °F 87% 30.16 in 7.0 mi Calm Calm - N/A   Clear
5:55 AM 30.4 °F - 27.3 °F 88% 30.15 in 10.0 mi Calm Calm - N/A   Clear
6:50 AM 30.2 °F - 26.6 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:50 AM 32.0 °F - 28.4 °F 87% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:50 AM 35.6 °F 29.2 °F 30.2 °F 81% 30.16 in 10.0 mi WNW 8.1 mph - N/A   Mostly Cloudy
9:50 AM 39.2 °F 34.2 °F 28.4 °F 65% 30.15 in 10.0 mi NNW 6.9 mph - N/A   Mostly Cloudy
10:50 AM 41.0 °F 35.8 °F 28.4 °F 61% 30.12 in 10.0 mi NNW 8.1 mph - N/A   Overcast
11:50 AM 44.6 °F 40.7 °F 28.4 °F 53% 30.10 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
12:50 PM 46.4 °F 44.3 °F 24.8 °F 43% 30.11 in 10.0 mi Variable 4.6 mph - N/A   Overcast
3:50 PM 46.4 °F - 24.8 °F 43% 30.03 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:55 PM 41.0 °F - 28.4 °F 61% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
9:15 PM 40.1 °F - 31.5 °F 71% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
9:35 PM 39.9 °F - 31.8 °F 73% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
9:55 PM 40.1 °F - 32.2 °F 73% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
10:15 PM 40.3 °F - 32.2 °F 73% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
10:35 PM 40.3 °F - 32.0 °F 72% 29.96 in 10.0 mi Calm Calm - N/A   Overcast
10:55 PM 39.9 °F - 32.0 °F 73% 29.96 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:15 PM 39.4 °F - 32.0 °F 75% 29.95 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:35 PM 38.5 °F - 32.0 °F 78% 29.95 in 10.0 mi Calm Calm - N/A   Overcast
11:55 PM 38.5 °F - 32.2 °F 78% 29.96 in 10.0 mi Calm Calm - N/A   Mostly Cloudy