Weather History for Riverton, WY

Tuesday, December 18, 2012 — View Current Weather Conditions

Tuesday, December 18, 2012

	Actual	Average	Record
Temperature
Mean Temperature	21 °F	19 °F
Max Temperature	32 °F	31 °F	45 °F (1999)
Min Temperature	10 °F	7 °F	-11 °F (1996)
Degree Days
Heating Degree Days	44	46
Month to date heating degree days	643	802
Since 1 July heating degree days	2224	2718
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	765	494
Moisture
Dew Point	-5 °F
Average Humidity	35
Maximum Humidity	53
Minimum Humidity	16
Precipitation
Precipitation	0.00 in	0.01 in	0.03 in (2002)
Month to date precipitation	0.04	0.16
Year to date precipitation	2.91	9.27
Snow
Snow	0.00 in	-	- ()
Month to date snowfall	0.5
Since 1 July snowfall	3.0
Snow Depth	0.00 in
Sea Level Pressure
Sea Level Pressure	29.80 in
Wind
Wind Speed	14 mph (WNW)
Max Wind Speed	24 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

Dec. 18, 2012	Rise	Set
Actual Time	7:40 AM MST	4:40 PM MST
Civil Twilight	7:08 AM MST	5:13 PM MST
Nautical Twilight	6:32 AM MST	5:49 PM MST
Astronomical Twilight	5:57 AM MST	6:23 PM MST
Moon	11:13 AM MST (12/18)	11:19 PM MST (12/18)
Length Of Visible Light	10h 05m
Length of Day	9h 00m

Waxing Crescent, 35% of the Moon is Illuminated
Dec 18 Waxing Crescent	Dec 19 First Quarter	Dec 28 Full	Jan 4 Last Quarter	Jan 11 New

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Hourly Weather History & Observations

Time (MST)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:53 AM	25.0 °F	14.2 °F	-0.0 °F	34%	29.66 in	10.0 mi	West	11.5 mph	-	N/A	Clear
1:53 AM	21.9 °F	11.0 °F	-0.9 °F	37%	29.69 in	10.0 mi	WSW	10.4 mph	-	N/A	Clear
2:53 AM	24.1 °F	12.0 °F	-2.0 °F	32%	29.71 in	10.0 mi	West	13.8 mph	-	N/A	Clear
3:53 AM	21.9 °F	9.2 °F	-2.0 °F	35%	29.70 in	10.0 mi	West	13.8 mph	-	N/A	Clear
4:53 AM	19.0 °F	6.8 °F	-2.0 °F	40%	29.75 in	10.0 mi	West	11.5 mph	-	N/A	Clear
5:53 AM	15.1 °F	2.5 °F	-2.9 °F	45%	29.79 in	10.0 mi	West	10.4 mph	-	N/A	Clear
6:53 AM	16.0 °F	3.6 °F	-4.0 °F	41%	29.81 in	10.0 mi	West	10.4 mph	-	N/A	Clear
7:53 AM	12.0 °F	2.7 °F	-2.9 °F	51%	29.82 in	10.0 mi	WNW	5.8 mph	-	N/A	Clear
8:53 AM	15.1 °F	3.3 °F	-0.0 °F	51%	29.84 in	10.0 mi	WNW	9.2 mph	-	N/A	Clear
9:53 AM	21.9 °F	9.8 °F	-0.0 °F	38%	29.82 in	10.0 mi	WNW	12.7 mph	-	N/A	Clear
10:53 AM	26.1 °F	15.6 °F	-0.0 °F	32%	29.81 in	10.0 mi	West	11.5 mph	-	N/A	Clear
11:53 AM	30.0 °F	17.2 °F	-8.0 °F	19%	29.78 in	10.0 mi	NW	20.7 mph	28.8 mph	N/A	Clear
12:53 PM	30.0 °F	17.5 °F	-11.0 °F	17%	29.76 in	10.0 mi	NW	19.6 mph	-	N/A	Clear
1:53 PM	30.0 °F	18.3 °F	-11.0 °F	17%	29.77 in	10.0 mi	NW	17.3 mph	-	N/A	Clear
2:53 PM	28.0 °F	16.5 °F	-8.0 °F	21%	29.77 in	10.0 mi	NW	15.0 mph	-	N/A	Clear
3:53 PM	26.1 °F	13.6 °F	-9.9 °F	20%	29.77 in	10.0 mi	NW	16.1 mph	-	N/A	Clear
4:53 PM	24.1 °F	12.5 °F	-9.0 °F	23%	29.79 in	10.0 mi	NW	12.7 mph	-	N/A	Clear
5:53 PM	21.9 °F	9.2 °F	-9.0 °F	25%	29.84 in	10.0 mi	NNW	13.8 mph	-	N/A	Clear
6:53 PM	21.0 °F	7.6 °F	-7.1 °F	29%	29.85 in	10.0 mi	NNW	15.0 mph	-	N/A	Clear
7:53 PM	21.9 °F	6.9 °F	-6.0 °F	29%	29.88 in	10.0 mi	NW	19.6 mph	-	N/A	Clear
8:53 PM	21.0 °F	7.1 °F	-5.1 °F	32%	29.89 in	10.0 mi	NW	16.1 mph	-	N/A	Clear
9:53 PM	19.0 °F	5.6 °F	-6.0 °F	33%	29.86 in	10.0 mi	NW	13.8 mph	-	N/A	Clear
10:53 PM	16.0 °F	3.6 °F	-5.1 °F	39%	29.88 in	10.0 mi	NW	10.4 mph	-	N/A	Clear
11:53 PM	17.1 °F	3.0 °F	-7.1 °F	34%	29.88 in	10.0 mi	NW	13.8 mph	-	N/A	Clear
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