Weather History for St. Louis, MO

Wednesday, December 12, 2012 — View Current Weather Conditions

Wednesday, December 12, 2012

	Actual	Average	Record
Temperature
Mean Temperature	38 °F	35 °F
Max Temperature	51 °F	43 °F	70 °F (1991)
Min Temperature	24 °F	28 °F	-5 °F (1962)
Degree Days
Heating Degree Days	27	30
Month to date heating degree days	202	333
Since 1 July heating degree days	1081	1159
Cooling Degree Days	0	0
Month to date cooling degree days	8	0
Year to date cooling degree days	2217	1646
Moisture
Dew Point	20 °F
Average Humidity	50
Maximum Humidity	75
Minimum Humidity	24
Precipitation
Precipitation	0.00 in	0.09 in	1.31 in (1972)
Month to date precipitation	0.88	1.19
Year to date precipitation	31.18	39.31
Snow
Snow	0.00 in	0.20 in	4.40 in (2010)
Month to date snowfall	0.0	1.3
Since 1 July snowfall	0.0	2.0
Snow Depth	0.00 in
Sea Level Pressure
Sea Level Pressure	30.31 in
Wind
Wind Speed	5 mph (SSE)
Max Wind Speed	12 mph
Max Gust Speed	15 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

Dec. 12, 2012	Rise	Set
Actual Time	7:10 AM CST	4:40 PM CST
Civil Twilight	6:40 AM CST	5:10 PM CST
Nautical Twilight	6:07 AM CST	5:43 PM CST
Astronomical Twilight	5:35 AM CST	6:15 PM CST
Moon	6:15 AM CST (12/12)	4:17 PM CST (12/12)
Length Of Visible Light	10h 29m
Length of Day	9h 29m

Waning Crescent, 1% of the Moon is Illuminated
Dec 12 Waning Crescent	Dec 13 New	Dec 19 First Quarter	Dec 28 Full	Jan 4 Last Quarter

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Hourly Weather History & Observations

Time (CST)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:51 AM	27.0 °F	-	19.9 °F	75%	30.26 in	10.0 mi	Calm	Calm	-	N/A	Clear
1:51 AM	30.0 °F	-	19.9 °F	66%	30.26 in	10.0 mi	Calm	Calm	-	N/A	Clear
2:51 AM	30.9 °F	-	19.0 °F	61%	30.27 in	10.0 mi	Calm	Calm	-	N/A	Clear
3:51 AM	28.0 °F	-	18.0 °F	66%	30.27 in	10.0 mi	Calm	Calm	-	N/A	Clear
4:51 AM	28.0 °F	-	18.0 °F	66%	30.29 in	10.0 mi	Calm	Calm	-	N/A	Clear
5:51 AM	27.0 °F	-	17.1 °F	66%	30.30 in	10.0 mi	Calm	Calm	-	N/A	Clear
6:51 AM	26.6 °F	-	17.6 °F	69%	30.29 in	10.0 mi	Calm	Calm	-	N/A	Clear
7:51 AM	28.0 °F	-	19.9 °F	72%	30.35 in	10.0 mi	Calm	Calm	-	N/A	Clear
8:51 AM	36.0 °F	-	21.9 °F	57%	30.36 in	10.0 mi	Calm	Calm	-	N/A	Clear
9:51 AM	42.1 °F	-	21.9 °F	45%	30.36 in	10.0 mi	Calm	Calm	-	N/A	Clear
10:51 AM	46.0 °F	43.1 °F	21.9 °F	39%	30.36 in	10.0 mi	South	5.8 mph	-	N/A	Clear
11:51 AM	48.9 °F	-	17.1 °F	28%	30.34 in	10.0 mi	SSW	6.9 mph	-	N/A	Clear
12:51 PM	51.8 °F	-	15.8 °F	24%	30.29 in	10.0 mi	SSW	8.1 mph	-	N/A	Clear
1:51 PM	51.1 °F	-	19.9 °F	29%	30.30 in	10.0 mi	SSE	8.1 mph	-	N/A	Clear
2:51 PM	50.0 °F	-	19.9 °F	31%	30.29 in	10.0 mi	SSE	10.4 mph	-	N/A	Partly Cloudy
3:51 PM	48.9 °F	-	21.0 °F	33%	30.29 in	10.0 mi	SSE	5.8 mph	-	N/A	Partly Cloudy
4:51 PM	45.0 °F	41.2 °F	21.0 °F	39%	30.30 in	10.0 mi	SE	6.9 mph	-	N/A	Partly Cloudy
5:51 PM	45.0 °F	39.3 °F	23.0 °F	42%	30.31 in	10.0 mi	SE	11.5 mph	-	N/A	Partly Cloudy
6:51 PM	44.1 °F	38.1 °F	24.1 °F	45%	30.31 in	10.0 mi	SSE	11.5 mph	-	N/A	Clear
7:51 PM	42.1 °F	36.1 °F	24.1 °F	49%	30.32 in	10.0 mi	SSE	10.4 mph	-	N/A	Clear
8:51 PM	41.0 °F	34.7 °F	24.1 °F	51%	30.31 in	10.0 mi	SSE	10.4 mph	-	N/A	Clear
9:51 PM	39.9 °F	33.4 °F	23.0 °F	51%	30.31 in	10.0 mi	South	10.4 mph	-	N/A	Clear
10:51 PM	39.0 °F	33.4 °F	23.0 °F	53%	30.32 in	10.0 mi	SSE	8.1 mph	-	N/A	Clear
11:51 PM	37.9 °F	35.5 °F	23.0 °F	55%	30.32 in	10.0 mi	SSW	3.5 mph	-	N/A	Clear
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