History for St. Louis, MO

Sunday, February 17, 2013 — View Current Conditions

Sunday, February 17, 2013

	Actual	Average	Record
Temperature
Mean Temperature	36 °F	37 °F
Max Temperature	49 °F	46 °F	77 °F (1911)
Min Temperature	22 °F	28 °F	-6 °F (1903)
Degree Days
Heating Degree Days	29	28
Month to date heating degree days	453	515
Since 1 July heating degree days	2955	3309
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	0	0
Moisture
Dew Point	20 °F
Average Humidity	53
Maximum Humidity	74
Minimum Humidity	31
Precipitation
Precipitation	0.00 in	0.08 in	1.46 in (1938)
Month to date precipitation	1.04	1.36
Year to date precipitation	4.16	3.76
Snow
Snow	0.00 in	0.10 in	2.00 in (1910)
Month to date snowfall	4.0	2.7
Since 1 July snowfall	7.0	13.4
Snow Depth	0.00 in
Sea Level Pressure
Sea Level Pressure	30.12 in
Wind
Wind Speed	11 mph (SE)
Max Wind Speed	22 mph
Max Gust Speed	30 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

May. 23, 2013	Rise	Set
Actual Time	6:49 AM CST	5:41 PM CST
Civil Twilight	6:22 AM CST	6:08 PM CST
Nautical Twilight	5:51 AM CST	6:39 PM CST
Astronomical Twilight	5:20 AM CST	7:10 PM CST
Moon	10:47 AM CST (2/17)	12:32 AM CST (2/17)
Length Of Visible Light	11h 46m
Length of Day	10h 52m

Waxing Crescent, 49% of the Moon is Illuminated
Feb 17 Waxing Crescent	Feb 17 First Quarter	Feb 25 Full	Mar 4 Last Quarter	Mar 11 New

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Hourly Observations

Time (CST)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:51 AM	25.0 °F	20.7 °F	14.0 °F	63%	30.21 in	10.0 mi	SSW	3.5 mph	-	N/A	Clear
1:51 AM	24.1 °F	19.7 °F	12.9 °F	62%	30.20 in	10.0 mi	NE	3.5 mph	-	N/A	Clear
2:51 AM	24.1 °F	-	15.1 °F	69%	30.20 in	10.0 mi	Calm	Calm	-	N/A	Mostly Cloudy
3:51 AM	25.0 °F	-	16.0 °F	69%	30.20 in	10.0 mi	Calm	Calm	-	N/A	Mostly Cloudy
4:51 AM	25.0 °F	19.3 °F	12.9 °F	60%	30.20 in	10.0 mi	East	4.6 mph	-	N/A	Mostly Cloudy
5:51 AM	23.0 °F	17.0 °F	14.0 °F	68%	30.22 in	10.0 mi	East	4.6 mph	-	N/A	Mostly Cloudy
6:51 AM	25.0 °F	19.3 °F	18.0 °F	75%	30.22 in	10.0 mi	East	4.6 mph	-	N/A	Mostly Cloudy
7:51 AM	27.0 °F	17.3 °F	17.1 °F	66%	30.22 in	10.0 mi	ESE	10.4 mph	-	N/A	Mostly Cloudy
8:51 AM	30.0 °F	20.0 °F	16.0 °F	56%	30.22 in	10.0 mi	ESE	12.7 mph	-	N/A	Mostly Cloudy
9:51 AM	34.0 °F	25.0 °F	15.1 °F	46%	30.22 in	10.0 mi	ESE	12.7 mph	-	N/A	Mostly Cloudy
10:51 AM	37.9 °F	30.0 °F	15.1 °F	39%	30.20 in	10.0 mi	SE	12.7 mph	-	N/A	Mostly Cloudy
11:51 AM	41.0 °F	33.5 °F	16.0 °F	36%	30.17 in	10.0 mi	ESE	13.8 mph	-	N/A	Mostly Cloudy
12:51 PM	44.1 °F	36.8 °F	17.1 °F	34%	30.13 in	10.0 mi	SE	16.1 mph	24.2 mph	N/A	Scattered Clouds
1:51 PM	45.0 °F	38.2 °F	18.0 °F	34%	30.10 in	10.0 mi	SE	15.0 mph	21.9 mph	N/A	Mostly Cloudy
2:51 PM	46.9 °F	-	19.0 °F	33%	30.07 in	10.0 mi	SE	17.3 mph	23.0 mph	N/A	Scattered Clouds
3:51 PM	48.0 °F	-	19.9 °F	33%	30.05 in	10.0 mi	SE	17.3 mph	24.2 mph	N/A	Partly Cloudy
4:51 PM	46.9 °F	-	21.9 °F	37%	30.02 in	10.0 mi	SE	15.0 mph	24.2 mph	N/A	Scattered Clouds
5:51 PM	46.0 °F	40.2 °F	23.0 °F	40%	30.01 in	10.0 mi	SE	12.7 mph	-	N/A	Mostly Cloudy
6:51 PM	44.1 °F	37.1 °F	28.0 °F	53%	30.02 in	10.0 mi	SE	15.0 mph	25.3 mph	N/A	Mostly Cloudy
7:51 PM	44.1 °F	36.8 °F	28.9 °F	55%	30.01 in	10.0 mi	SSE	16.1 mph	-	N/A	Mostly Cloudy
8:51 PM	43.0 °F	35.7 °F	30.0 °F	60%	30.00 in	10.0 mi	SSE	15.0 mph	23.0 mph	N/A	Mostly Cloudy
9:51 PM	42.1 °F	34.9 °F	30.0 °F	62%	29.98 in	10.0 mi	SE	13.8 mph	-	N/A	Mostly Cloudy
11:51 PM	41.0 °F	34.7 °F	28.9 °F	62%	29.94 in	10.0 mi	SE	10.4 mph	-	N/A	Mostly Cloudy
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