History for Rapid City, SD

Friday, October 12, 2012 — View Current Conditions

Friday, October 12, 2012

	Actual	Average	Record
Temperature
Mean Temperature	52 °F	49 °F
Max Temperature	72 °F	63 °F	90 °F (1956)
Min Temperature	32 °F	35 °F	16 °F (2009)
Degree Days
Heating Degree Days	13	16
Month to date heating degree days	233	165
Since 1 July heating degree days	332	389
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	937	633
Growing Degree Days	2 (Base 50)
Moisture
Dew Point	29 °F
Average Humidity	51
Maximum Humidity	78
Minimum Humidity	24
Precipitation
Precipitation	0.00 in	0.04 in	0.54 in (1970)
Month to date precipitation	T	0.63
Year to date precipitation	10.27	14.55
Snow
Snow	0.00 in	0.10 in	- ()
Month to date snowfall	T	0.3
Since 1 July snowfall	T	0.5
Since 1 September snowfall	T	0.5
Snow Depth	0.00 in
Sea Level Pressure
Sea Level Pressure	29.92 in
Wind
Wind Speed	16 mph (SSE)
Max Wind Speed	39 mph
Max Gust Speed	49 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

	Rise	Set
Actual Time	7:03 AM MDT	6:12 PM MDT
Civil Twilight	6:34 AM MDT	6:41 PM MDT
Nautical Twilight	6:01 AM MDT	7:14 PM MDT
Astronomical Twilight	5:27 AM MDT	7:48 PM MDT
Moon	3:43 AM MDT (10/12)	4:27 PM MDT (10/12)
Length Of Visible Light	12h 06m
Length of Day	11h 08m

Waning Crescent, 10% of the Moon is Illuminated
Oct 12 Waning Crescent	Oct 15 New	Oct 21 First Quarter	Oct 29 Full	Nov 6 Last Quarter

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Hourly Observations

Time (MDT)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:52 AM	32.0 °F	22.1 °F	26.1 °F	79%	30.30 in	10.0 mi	South	13.8 mph	-	N/A	Clear
1:52 AM	33.1 °F	23.0 °F	26.1 °F	75%	30.26 in	10.0 mi	South	15.0 mph	-	N/A	Clear
2:52 AM	32.0 °F	22.5 °F	24.8 °F	75%	30.15 in	10.0 mi	SSE	12.7 mph	-	N/A	Clear
3:52 AM	33.8 °F	22.2 °F	24.8 °F	70%	30.13 in	10.0 mi	South	20.7 mph	-	N/A	Clear
4:52 AM	33.1 °F	20.6 °F	25.0 °F	72%	30.15 in	10.0 mi	South	23.0 mph	-	N/A	Clear
5:52 AM	35.6 °F	24.0 °F	24.8 °F	65%	30.08 in	10.0 mi	SSE	23.0 mph	-	N/A	Clear
6:52 AM	35.1 °F	22.2 °F	25.0 °F	67%	30.10 in	10.0 mi	South	27.6 mph	40.3 mph	N/A	Clear
7:52 AM	37.4 °F	25.6 °F	24.8 °F	60%	30.02 in	10.0 mi	South	26.5 mph	34.5 mph	N/A	Clear
8:52 AM	42.1 °F	30.8 °F	26.1 °F	53%	30.04 in	10.0 mi	South	33.4 mph	47.2 mph	N/A	Clear
9:52 AM	46.9 °F	-	27.0 °F	46%	29.99 in	10.0 mi	South	21.9 mph	32.2 mph	N/A	Clear
10:52 AM	53.6 °F	-	28.4 °F	38%	29.92 in	10.0 mi	South	24.2 mph	34.5 mph	N/A	Clear
11:52 AM	57.9 °F	-	30.0 °F	35%	29.92 in	10.0 mi	South	21.9 mph	29.9 mph	N/A	Clear
12:52 PM	62.6 °F	-	30.2 °F	30%	29.83 in	10.0 mi	South	26.5 mph	34.5 mph	N/A	Clear
1:52 PM	70.0 °F	-	32.0 °F	25%	29.80 in	10.0 mi	South	18.4 mph	26.5 mph	N/A	Clear
2:52 PM	70.0 °F	-	32.0 °F	25%	29.78 in	10.0 mi	South	23.0 mph	28.8 mph	N/A	Clear
3:52 PM	71.1 °F	-	32.0 °F	24%	29.76 in	10.0 mi	SE	17.3 mph	23.0 mph	N/A	Clear
4:52 PM	71.1 °F	-	32.0 °F	24%	29.73 in	10.0 mi	South	12.7 mph	21.9 mph	N/A	Clear
5:52 PM	69.1 °F	-	32.0 °F	25%	29.70 in	10.0 mi	South	19.6 mph	26.5 mph	N/A	Clear
6:52 PM	62.1 °F	-	33.1 °F	34%	29.72 in	10.0 mi	South	9.2 mph	-	N/A	Clear
7:52 PM	55.0 °F	-	30.9 °F	40%	29.73 in	10.0 mi	ENE	3.5 mph	-	N/A	Clear
8:52 PM	50.0 °F	-	30.2 °F	47%	29.72 in	10.0 mi	NNW	3.5 mph	-	N/A	Clear
9:52 PM	50.0 °F	-	30.9 °F	48%	29.74 in	10.0 mi	Calm	Calm	-	N/A	Clear
10:52 PM	53.6 °F	-	32.0 °F	44%	29.73 in	10.0 mi	Calm	Calm	-	N/A	Clear
11:52 PM	51.1 °F	-	34.0 °F	52%	29.69 in	10.0 mi	Calm	Calm	-	N/A	Clear
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