History for Butte, MT

Monday, December 31, 2012 — View Current Conditions

Monday, December 31, 2012

	Actual	Average	Record
Temperature
Mean Temperature	10 °F	18 °F
Max Temperature	18 °F	30 °F	53 °F (1917)
Min Temperature	2 °F	6 °F	-39 °F (1978)
Degree Days
Heating Degree Days	55	47
Month to date heating degree days	1403	1470
Since 1 July heating degree days	3665	3964
Cooling Degree Days	0	0
Month to date cooling degree days	0	0
Year to date cooling degree days	121	81
Moisture
Dew Point	7 °F
Average Humidity	78
Maximum Humidity	88
Minimum Humidity	67
Precipitation
Precipitation	0.00 in	0.02 in	0.70 in (1942)
Month to date precipitation	0.30	0.51
Year to date precipitation	9.06	12.77
Sea Level Pressure
Sea Level Pressure	30.28 in
Wind
Wind Speed	3 mph (NW)
Max Wind Speed	9 mph
Max Gust Speed	12 mph
Visibility	10 miles
Events

T = Trace of Precipitation, MM = Missing Value

Source: NWS Daily Summary

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Astronomy

May. 25, 2013	Rise	Set
Actual Time	8:11 AM MST	4:55 PM MST
Civil Twilight	7:37 AM MST	5:29 PM MST
Nautical Twilight	6:59 AM MST	6:07 PM MST
Astronomical Twilight	6:23 AM MST	6:43 PM MST
Moon	8:41 PM MST (12/31)	9:44 AM MST (12/31)
Length Of Visible Light	9h 52m
Length of Day	8h 43m

Waning Gibbous, 90% of the Moon is Illuminated
Dec 31 Waning Gibbous	Jan 4 Last Quarter	Jan 11 New	Jan 18 First Quarter	Jan 26 Full

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Hourly Observations

Time (MST)	Temp.	Windchill	Dew Point	Humidity	Pressure	Visibility	Wind Dir	Wind Speed	Gust Speed	Precip	Conditions
12:53 AM	5.0 °F	-	1.0 °F	84%	30.27 in	10.0 mi	Calm	Calm	-	N/A	Overcast
1:53 AM	5.0 °F	-	1.0 °F	84%	30.26 in	10.0 mi	Calm	Calm	-	N/A	Overcast
2:53 AM	7.0 °F	-	3.0 °F	84%	30.26 in	10.0 mi	Calm	Calm	-	N/A	Overcast
3:03 AM	8.6 °F	-	3.2 °F	79%	30.03 in	10.0 mi	Calm	Calm	-	N/A	Overcast
3:53 AM	10.0 °F	-	3.9 °F	76%	30.25 in	10.0 mi	Calm	Calm	-	N/A	Overcast
4:53 AM	10.0 °F	3.6 °F	5.0 °F	80%	30.27 in	10.0 mi	ESE	3.5 mph	-	N/A	Overcast
5:00 AM	10.4 °F	-	5.0 °F	79%	30.03 in	10.0 mi	Calm	Calm	-	N/A	Overcast
5:53 AM	12.0 °F	-	7.0 °F	80%	30.28 in	10.0 mi	Calm	Calm	-	N/A	Overcast
6:53 AM	10.9 °F	4.7 °F	7.0 °F	84%	30.30 in	10.0 mi	NW	3.5 mph	-	N/A	Overcast
7:53 AM	10.9 °F	2.9 °F	6.1 °F	81%	30.31 in	10.0 mi	North	4.6 mph	-	N/A	Overcast
8:53 AM	9.0 °F	-	5.0 °F	84%	30.34 in	10.0 mi	Calm	Calm	-	N/A	Overcast
9:53 AM	12.9 °F	-	7.0 °F	77%	30.34 in	10.0 mi	Calm	Calm	-	N/A	Overcast
10:53 AM	16.0 °F	7.4 °F	8.1 °F	71%	30.33 in	10.0 mi	NNW	5.8 mph	-	N/A	Overcast
11:28 AM	15.8 °F	-	8.6 °F	73%	30.07 in	10.0 mi	Calm	Calm	-	N/A	Scattered Clouds
11:53 AM	16.0 °F	-	8.1 °F	71%	30.32 in	10.0 mi	Calm	Calm	-	N/A	Clear
12:53 PM	18.0 °F	12.7 °F	8.1 °F	65%	30.29 in	10.0 mi	NW	3.5 mph	-	N/A	Clear
1:53 PM	18.0 °F	11.1 °F	8.1 °F	65%	30.28 in	10.0 mi	WNW	4.6 mph	-	N/A	Overcast
2:53 PM	18.0 °F	9.8 °F	9.0 °F	68%	30.29 in	10.0 mi	WNW	5.8 mph	-	N/A	Overcast
3:53 PM	18.0 °F	9.8 °F	9.0 °F	68%	30.29 in	10.0 mi	WNW	5.8 mph	-	N/A	Overcast
4:53 PM	17.1 °F	8.7 °F	9.0 °F	71%	30.30 in	10.0 mi	NW	5.8 mph	-	N/A	Overcast
5:53 PM	17.1 °F	7.6 °F	9.0 °F	71%	30.30 in	10.0 mi	NW	6.9 mph	-	N/A	Overcast
6:53 PM	16.0 °F	5.3 °F	10.0 °F	77%	30.32 in	10.0 mi	NW	8.1 mph	-	N/A	Overcast
7:53 PM	16.0 °F	10.4 °F	10.0 °F	77%	30.34 in	10.0 mi	WNW	3.5 mph	-	N/A	Overcast
8:53 PM	16.0 °F	10.4 °F	10.0 °F	77%	30.36 in	10.0 mi	NW	3.5 mph	-	N/A	Overcast
9:53 PM	16.0 °F	8.8 °F	10.0 °F	77%	30.35 in	10.0 mi	NNE	4.6 mph	-	N/A	Overcast
10:53 PM	16.0 °F	-	10.0 °F	77%	30.37 in	9.0 mi	Calm	Calm	-	N/A	Overcast
11:53 PM	15.1 °F	-	10.0 °F	80%	30.38 in	10.0 mi	Calm	Calm	-	N/A	Overcast
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