Weather History for St. Louis, MO

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Friday, January 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 4 °C 0 °C  
Max Temperature 13 °C 4 °C 22 °C (1880)
Min Temperature -4 °C -4 °C -28 °C (1930)
Degree Days  
Heating Degree Days 25 33  
Month to date heating degree days 530 602  
Since 1 July heating degree days 2129 2367  
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 °C    
Average Humidity 54    
Maximum Humidity 81    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 mm 2.03 mm 4.11 mm (1949)
Month to date precipitation 1.27 1.44  
Year to date precipitation 1.27 1.44  
Snow  
Snow 0.00 cm 0.25 cm 25.40 cm (1892)
Month to date snowfall 0.1 3.2  
Since 1 July snowfall 2.2 8.3  
Snow Depth 0.00 cm    
Sea Level Pressure  
Sea Level Pressure 1027 hPa    
Wind  
Wind Speed 15 km/h (South)    
Max Wind Speed 35 km/h    
Max Gust Speed 42 km/h    
Visibility 16 kilometers    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 18, 2013 Rise Set
Actual Time 7:16 AM CST 5:07 PM CST
Civil Twilight 6:47 AM CST 5:36 PM CST
Nautical Twilight 6:15 AM CST 6:09 PM CST
Astronomical Twilight 5:43 AM CST 6:40 PM CST
Moon 11:00 AM CST (1/18) No Moon Set
Length of Visible Light 10h 48m
Length of Day
9h 50m
Waxing Crescent, 47% of the Moon is Illuminated
Jan 18
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

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 -2.8 °C - -7.2 °C 72% 1033.9 hPa 16.1 km Calm Calm - N/A   Clear
1:51 AM -3.3 °C - -7.2 °C 75% 1033.8 hPa 16.1 km Calm Calm - N/A   Clear
2:51 AM -4.4 °C - -7.8 °C 77% 1033.6 hPa 16.1 km Calm Calm - N/A   Clear
3:51 AM -3.9 °C - -7.2 °C 78% 1033.4 hPa 16.1 km Calm Calm - N/A   Clear
4:51 AM -2.8 °C -6.9 °C -7.8 °C 69% 1033.2 hPa 16.1 km SSW 11.1 km/h / 3.1 m/s - N/A   Clear
5:51 AM -1.1 °C -3.8 °C -7.8 °C 61% 1032.8 hPa 16.1 km South 7.4 km/h / 2.1 m/s - N/A   Clear
6:51 AM -1.1 °C -3.8 °C -7.8 °C 61% 1032.6 hPa 16.1 km South 7.4 km/h / 2.1 m/s - N/A   Clear
7:51 AM -1.0 °C -5.2 °C -7.0 °C 64% 1031.4 hPa 16.1 km SSW 13.0 km/h / 3.6 m/s - N/A   Clear
8:51 AM 1.7 °C -1.1 °C -6.7 °C 54% 1032.2 hPa 16.1 km South 9.3 km/h / 2.6 m/s - N/A   Clear
9:51 AM 3.9 °C -0.8 °C -6.1 °C 49% 1031.6 hPa 16.1 km South 24.1 km/h / 6.7 m/s - N/A   Clear
10:51 AM 6.7 °C 3.6 °C -5.6 °C 42% 1030.5 hPa 16.1 km South 16.7 km/h / 4.6 m/s - N/A   Partly Cloudy
11:51 AM 8.3 °C - -5.0 °C 39% 1028.7 hPa 16.1 km SSW 24.1 km/h / 6.7 m/s - N/A   Partly Cloudy
12:51 PM 10.0 °C - -5.0 °C 35% 1026.8 hPa 16.1 km South 18.5 km/h / 5.1 m/s - N/A   Partly Cloudy
1:51 PM 11.7 °C - -5.6 °C 30% 1025.4 hPa 16.1 km South 22.2 km/h / 6.2 m/s - N/A   Partly Cloudy
2:51 PM 12.8 °C - -6.1 °C 27% 1023.9 hPa 16.1 km SSW 29.6 km/h / 8.2 m/s 37.0 km/h / 10.3 m/s N/A   Partly Cloudy
3:51 PM 12.8 °C - -6.1 °C 27% 1023.2 hPa 16.1 km South 22.2 km/h / 6.2 m/s - N/A   Partly Cloudy
4:51 PM 11.7 °C - -5.6 °C 30% 1022.8 hPa 16.1 km South 20.4 km/h / 5.7 m/s - N/A   Partly Cloudy
5:51 PM 10.6 °C - -6.1 °C 31% 1022.7 hPa 16.1 km South 20.4 km/h / 5.7 m/s 35.2 km/h / 9.8 m/s N/A   Partly Cloudy
6:51 PM 10.0 °C - -6.1 °C 32% 1022.5 hPa 16.1 km South 22.2 km/h / 6.2 m/s - N/A   Clear
7:51 PM 8.3 °C - -5.6 °C 37% 1022.2 hPa 16.1 km South 14.8 km/h / 4.1 m/s - N/A   Clear
8:51 PM 7.8 °C 5.0 °C -4.4 °C 42% 1021.6 hPa 16.1 km South 16.7 km/h / 4.6 m/s - N/A   Clear
9:51 PM 7.2 °C 3.6 °C -3.9 °C 46% 1021.1 hPa 16.1 km SSW 22.2 km/h / 6.2 m/s - N/A   Clear
10:51 PM 6.1 °C 2.7 °C -3.3 °C 51% 1021.2 hPa 16.1 km SSW 18.5 km/h / 5.1 m/s - N/A   Clear
11:51 PM 5.6 °C 2.5 °C -3.3 °C 53% 1021.2 hPa 16.1 km SSW 14.8 km/h / 4.1 m/s - N/A   Clear