Weather History for St. Louis, MO

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Monday, February 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 47 °F 37 °F  
Max Temperature 60 °F 46 °F 74 °F (1971)
Min Temperature 34 °F 28 °F -9 °F (1936)
Degree Days  
Heating Degree Days 18 28  
Month to date heating degree days 471 543  
Since 1 July heating degree days 2973 3337  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 39 °F    
Average Humidity 69    
Maximum Humidity 83    
Minimum Humidity 55    
Precipitation  
Precipitation 0.16 in 0.08 in 2.24 in (2000)
Month to date precipitation 1.20 1.44  
Year to date precipitation 4.32 3.84  
Snow  
Snow 0.00 in 0.20 in 1.70 in (1934)
Month to date snowfall 4.0 2.9  
Since 1 July snowfall 7.0 13.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.72 in    
Wind  
Wind Speed 18 mph (SSW)    
Max Wind Speed 32 mph    
Max Gust Speed 40 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 18, 2013 Rise Set
Actual Time 6:48 AM CST 5:42 PM CST
Civil Twilight 6:21 AM CST 6:09 PM CST
Nautical Twilight 5:50 AM CST 6:41 PM CST
Astronomical Twilight 5:19 AM CST 7:11 PM CST
Moon 11:30 AM CST (2/18) 1:26 AM CST (2/18)
Length of Visible Light 11h 48m
Length of Day
10h 54m
First Quarter, 58% of the Moon is Illuminated
Feb 18
First Quarter
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
12:51 AM 41.0 °F 35.2 °F 28.9 °F 62% 29.92 in 10.0 mi SE 9.2 mph - N/A   Overcast
1:51 AM 39.2 °F 33.0 °F 28.4 °F 65% 29.88 in 10.0 mi SE 9.2 mph - N/A   Scattered Clouds
2:51 AM 39.9 °F 35.1 °F 30.0 °F 68% 29.87 in 10.0 mi SE 6.9 mph - N/A   Mostly Cloudy
3:51 AM 42.1 °F 35.7 °F 32.0 °F 67% 29.85 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
4:51 AM 44.1 °F 37.4 °F 33.1 °F 65% 29.83 in 10.0 mi South 13.8 mph - N/A   Overcast
5:51 AM 45.0 °F 37.9 °F 34.0 °F 65% 29.82 in 10.0 mi South 16.1 mph - N/A   Mostly Cloudy
6:51 AM 45.0 °F 38.5 °F 35.1 °F 68% 29.81 in 10.0 mi South 13.8 mph - N/A   Mostly Cloudy
7:51 AM 46.9 °F - 37.0 °F 68% 29.80 in 10.0 mi South 12.7 mph - N/A   Overcast
8:51 AM 53.1 °F - 39.0 °F 59% 29.78 in 10.0 mi South 12.7 mph 20.7 mph N/A   Mostly Cloudy
9:51 AM 57.0 °F - 41.0 °F 55% 29.78 in 10.0 mi South 20.7 mph 35.7 mph N/A   Mostly Cloudy
10:51 AM 57.9 °F - 43.0 °F 58% 29.76 in 10.0 mi SSW 26.5 mph 34.5 mph N/A   Mostly Cloudy
11:51 AM 57.0 °F - 43.0 °F 59% 29.74 in 10.0 mi South 26.5 mph 36.8 mph N/A   Overcast
12:13 PM 55.4 °F - 42.8 °F 63% 29.73 in 10.0 mi SSW 21.9 mph 31.1 mph N/A   Overcast
12:51 PM 55.9 °F - 44.1 °F 64% 29.71 in 10.0 mi South 23.0 mph 38.0 mph N/A   Overcast
1:51 PM 55.9 °F - 44.1 °F 64% 29.67 in 10.0 mi South 17.3 mph 29.9 mph N/A   Overcast
2:51 PM 55.0 °F - 44.1 °F 67% 29.64 in 10.0 mi South 20.7 mph 33.4 mph N/A   Overcast
3:51 PM 52.0 °F - 45.0 °F 77% 29.60 in 5.0 mi South 15.0 mph 26.5 mph 0.00 in Rain Light Rain
3:53 PM 51.8 °F - 46.4 °F 82% 29.59 in 3.0 mi South 16.1 mph 26.5 mph 0.01 in Rain Light Rain
4:23 PM 51.8 °F - 46.4 °F 82% 29.59 in 4.0 mi SSE 21.9 mph 28.8 mph 0.05 in Rain Light Rain
4:43 PM 51.8 °F - 46.4 °F 82% 29.57 in 7.0 mi South 17.3 mph 24.2 mph N/A Rain Light Rain
4:51 PM 51.1 °F - 46.0 °F 83% 29.57 in 7.0 mi SSE 18.4 mph 25.3 mph 0.06 in Rain Light Rain
4:58 PM 51.8 °F - 46.4 °F 82% 29.56 in 7.0 mi South 17.3 mph 29.9 mph 0.01 in Rain Light Rain
5:27 PM 51.8 °F - 46.4 °F 82% 29.57 in 4.0 mi South 15.0 mph - 0.01 in Rain Light Rain
5:51 PM 51.1 °F - 46.9 °F 86% 29.57 in 4.0 mi South 13.8 mph 23.0 mph 0.05 in Rain Light Rain
6:02 PM 51.8 °F - 46.4 °F 82% 29.57 in 6.0 mi SSW 12.7 mph - 0.00 in Rain Light Rain
6:29 PM 51.8 °F - 46.4 °F 82% 29.60 in 3.0 mi West 19.6 mph 26.5 mph N/A Rain Rain
6:41 PM 48.2 °F - 44.6 °F 87% 29.61 in 4.0 mi NW 25.3 mph 38.0 mph 0.04 in Rain Light Rain
6:51 PM 46.0 °F 37.6 °F 42.1 °F 86% 29.64 in 8.0 mi WNW 24.2 mph 32.2 mph 0.05 in   Overcast
6:58 PM 44.6 °F 35.7 °F 41.0 °F 87% 29.64 in 10.0 mi WNW 24.2 mph 36.8 mph N/A   Overcast
7:51 PM 41.0 °F 30.5 °F 35.1 °F 79% 29.73 in 10.0 mi NW 26.5 mph 35.7 mph N/A   Overcast
8:51 PM 39.9 °F 28.8 °F 34.0 °F 79% 29.77 in 10.0 mi WNW 27.6 mph 38.0 mph N/A   Overcast
9:33 PM 37.4 °F 26.4 °F 30.2 °F 75% 29.81 in 10.0 mi WNW 23.0 mph 33.4 mph N/A   Overcast
9:51 PM 36.0 °F 23.0 °F 28.0 °F 73% 29.83 in 10.0 mi WNW 29.9 mph 40.3 mph N/A   Overcast
10:51 PM 35.1 °F 24.5 °F 25.0 °F 67% 29.88 in 10.0 mi WNW 18.4 mph 28.8 mph N/A   Overcast
11:51 PM 34.0 °F 21.3 °F 23.0 °F 64% 29.91 in 10.0 mi West 25.3 mph 32.2 mph N/A   Overcast