NORRIS MADISON POWER HOUSE, MT - HCND station 246157

246157 - NORRIS MADISON POWER HOUSE, Montana

Latitude
45° 29´N

Longitude
111° 38´W

Elevation
4745 feet

10 nearest HCND stations

10 mi	SSW :	ENNIS, MT
20 mi	SW :	VIRGINIA CITY, MT
31 mi	ENE :	BOZEMAN MONTANA ST UNIV, MT
45 mi	SSE :	HEBGEN DAM, MT
52 mi	WSW :	DILLON WMCE, MT
58 mi	SE :	YELLOWSTONE PARK MAMMOTH, WY
63 mi	SSE :	WEST YELLOWSTONE, MT
79 mi	NNW :	HELENA WSO, MT
85 mi	ENE :	BIG TIMBER, MT
88 mi	SE :	LAKE YELLOWSTONE, WY

Weather variables Help
Click a weather variable name to jump down to those statistics.

	Total observations	%	NDJFM observations	%
TMAX	18082	99.0%	7493	99.1%
TMIN	18167	99.5%	7523	99.5%
PRCP	13141	72.0%	5214	68.9%
SNOW	10636	58.2%	3960	52.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7493 by year	40.1°F	12.0°F		overall	NAM	PNA	CTI

TMAX and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme high events Days with TMAX>=56°F	558	0.27	96	42	2.3*	map	table
Extreme low events Days with TMAX<=21°F	517	-0.06	108	121	1.1	map	table

TMAX and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme high events Days with TMAX>=56°F	558	0.69	166	18	9.2*	map	table
Extreme low events Days with TMAX<=21°F	517	-0.91	15	199	13.3*	map	table

TMAX and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme high events Days with TMAX>=56°F	558	86	84	1.0	map	table
Extreme low events Days with TMAX<=21°F	517	57	99	1.7*	map	table

TMAX under 2 index extremes Help

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7523 by year	22.9°F	12.6°F		overall	NAM	PNA	CTI

TMIN and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme low events Days with TMIN<=0°F	522	-0.08	103	124	1.2	map	table
Extreme high events Days with TMIN>=38°F	590	0.10	90	67	1.3	map	table

TMIN and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme low events Days with TMIN<=0°F	522	-1.05	12	228	19.0*	map	table
Extreme high events Days with TMIN>=38°F	590	0.24	111	46	2.4*	map	table

TMIN and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme low events Days with TMIN<=0°F	522	52	105	2.0*	map	table
Extreme high events Days with TMIN>=38°F	590	88	102	1.2	map	table

TMIN under 2 index extremes Help

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	5214 by year	0.04"		overall	NAM	PNA	CTI

PRCP and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with PRCP>0.00"	1632	0.12"	-0.07	261	321	1.2*	map	table
Extreme events Days with PRCP>0.18"	322	0.35"	0.04	54	53	1.0	map	table

PRCP and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with PRCP>0.00"	1632	0.12"	-0.25	188	327	1.7*	map	table
Extreme events Days with PRCP>0.18"	322	0.35"	-0.28	31	65	2.1*	map	table

PRCP and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with PRCP>0.00"	1632	0.12"	242	271	1.1	map	table
Extreme events Days with PRCP>0.18"	322	0.35"	46	49	1.1	map	table

PRCP under 2 index extremes Help

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3960 by year	0.47"		overall	NAM	PNA	CTI

SNOW and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with SNOW>0.0"	742	2.49"	-0.05	133	150	1.1	map	table
Extreme events Days with SNOW>4.0"	120	7.03"	-0.02	26	31	1.2	map	table

SNOW and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with SNOW>0.0"	742	2.49"	-0.46	61	187	3.1*	map	table
Extreme events Days with SNOW>4.0"	120	7.03"	-0.48	8	27	3.4*	map	table

SNOW and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with SNOW>0.0"	742	2.49"	105	151	1.4*	map	table
Extreme events Days with SNOW>4.0"	120	7.03"	22	21	1.0	map	table

SNOW under 2 index extremes Help

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