History for Helena, MT

Saturday, March 16, 2013 — View Current Conditions

Saturday, March 16, 2013

	Actual	Average	Record
Temperature
Mean Temperature	46 °F	36 °F
Max Temperature	55 °F	48 °F	70 °F (1994)
Min Temperature	36 °F	24 °F	-10 °F (1906)
Degree Days
Heating Degree Days	19	29
Month to date heating degree days	431	499
Since 1 July heating degree days	5550	6060
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	0	0
Moisture
Dew Point	23 °F
Average Humidity	42
Maximum Humidity	60
Minimum Humidity	24
Precipitation
Precipitation	0.00 in	0.02 in	0.37 in (1922)
Month to date precipitation	0.05	0.26
Year to date precipitation	0.72	0.92
Snow
Snow	0.00 in	0.20 in	4.20 in (1903)
Month to date snowfall	0.1	3.3
Since 1 July snowfall	35.8	30.6
Snow Depth	0.00 in
Sea Level Pressure
Sea Level Pressure	29.89 in
Wind
Wind Speed	8 mph (WSW)
Max Wind Speed	18 mph
Max Gust Speed	23 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

May. 22, 2013	Rise	Set
Actual Time	7:38 AM MDT	7:35 PM MDT
Civil Twilight	7:08 AM MDT	8:05 PM MDT
Nautical Twilight	6:32 AM MDT	8:40 PM MDT
Astronomical Twilight	5:56 AM MDT	9:17 PM MDT
Moon	9:52 AM MDT (3/16)	12:09 AM MDT (3/16)
Length Of Visible Light	12h 57m
Length of Day	11h 57m

Waxing Crescent, 23% of the Moon is Illuminated
Mar 16 Waxing Crescent	Mar 19 First Quarter	Mar 27 Full	Apr 2 Last Quarter	Apr 10 New

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Hourly Observations

Time (MDT)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:53 AM	43.0 °F	38.2 °F	26.1 °F	51%	30.06 in	10.0 mi	SW	8.1 mph	-	N/A	Clear
1:53 AM	41.0 °F	36.4 °F	25.0 °F	53%	30.05 in	10.0 mi	SW	6.9 mph	-	N/A	Scattered Clouds
2:53 AM	37.0 °F	34.5 °F	25.0 °F	62%	30.06 in	10.0 mi	West	3.5 mph	-	N/A	Partly Cloudy
3:53 AM	39.0 °F	32.8 °F	26.1 °F	60%	30.02 in	10.0 mi	WSW	9.2 mph	-	N/A	Clear
4:53 AM	43.0 °F	36.8 °F	25.0 °F	49%	30.00 in	10.0 mi	WSW	11.5 mph	-	N/A	Scattered Clouds
5:53 AM	42.1 °F	35.7 °F	26.1 °F	53%	30.00 in	10.0 mi	West	11.5 mph	18.4 mph	N/A	Scattered Clouds
6:53 AM	39.9 °F	37.8 °F	26.1 °F	58%	30.00 in	10.0 mi	WSW	3.5 mph	-	N/A	Overcast
7:53 AM	39.0 °F	36.8 °F	26.1 °F	60%	30.00 in	10.0 mi	SSW	3.5 mph	-	N/A	Mostly Cloudy
8:53 AM	39.9 °F	37.8 °F	26.1 °F	58%	29.99 in	10.0 mi	South	3.5 mph	-	N/A	Partly Cloudy
9:53 AM	41.0 °F	-	28.0 °F	60%	30.00 in	10.0 mi	Calm	Calm	-	N/A	Scattered Clouds
10:53 AM	46.0 °F	43.9 °F	27.0 °F	47%	29.99 in	10.0 mi	ENE	4.6 mph	-	N/A	Partly Cloudy
11:53 AM	48.0 °F	-	24.1 °F	39%	29.96 in	10.0 mi	West	4.6 mph	-	N/A	Scattered Clouds
12:53 PM	51.1 °F	-	19.9 °F	29%	29.93 in	10.0 mi	West	6.9 mph	20.7 mph	N/A	Overcast
1:53 PM	53.1 °F	-	19.9 °F	27%	29.88 in	10.0 mi	WNW	12.7 mph	-	N/A	Mostly Cloudy
2:53 PM	52.0 °F	-	18.0 °F	26%	29.86 in	10.0 mi	SSW	12.7 mph	19.6 mph	N/A	Mostly Cloudy
3:53 PM	52.0 °F	-	19.0 °F	27%	29.81 in	10.0 mi	West	11.5 mph	-	N/A	Overcast
4:53 PM	52.0 °F	-	18.0 °F	26%	29.78 in	10.0 mi	West	17.3 mph	-	N/A	Partly Cloudy
5:53 PM	53.1 °F	-	18.0 °F	25%	29.76 in	10.0 mi	WNW	10.4 mph	-	N/A	Clear
6:53 PM	48.9 °F	-	19.0 °F	31%	29.75 in	10.0 mi	West	8.1 mph	-	N/A	Clear
7:53 PM	45.0 °F	41.2 °F	19.9 °F	37%	29.75 in	10.0 mi	West	6.9 mph	-	N/A	Clear
8:53 PM	44.1 °F	40.8 °F	19.9 °F	38%	29.73 in	10.0 mi	WSW	5.8 mph	-	N/A	Clear
9:53 PM	43.0 °F	38.8 °F	21.0 °F	42%	29.70 in	10.0 mi	WSW	6.9 mph	-	N/A	Clear
10:53 PM	37.9 °F	34.4 °F	23.0 °F	55%	29.68 in	10.0 mi	NNW	4.6 mph	-	N/A	Clear
11:53 PM	37.0 °F	30.4 °F	24.1 °F	59%	29.67 in	10.0 mi	NW	9.2 mph	-	N/A	Scattered Clouds
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