NORRIS MADISON PUMP HS, MT - COOP Northwest station 246157

246157 - NORRIS MADISON PUMP HS, Montana

Latitude
45° 29´N

Longitude
111° 38´W

Elevation
1446 meters

10 nearest COOP Northwest stations

4 mi	N :	NORRIS 3 ENE, MT
6 mi	SSW :	ENNIS, MT
10 mi	NE :	ANCENEY, MT
10 mi	NW :	PONY, MT
12 mi	E :	GALLATIN GATEWAY 10SSW, MT
12 mi	S :	CAMERON, MT
12 mi	SW :	VIRGINIA CITY, MT
12 mi	SE :	BIG SKY 2 WNW, MT
14 mi	NNW :	SAPPINGTON, MT
15 mi	SE :	GALLATIN GATEWAY 26 SSW, MT

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

	Total observations	%	NDJFM observations	%
TMAX	18179	99.5%	7540	99.7%
TMIN	18199	99.6%	7548	99.8%
PRCP	18220	99.8%	7553	99.9%
SNOW	16062	87.9%	6028	79.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7540 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	562	0.27	97	43	2.3*	map	table
Extreme low events Days with TMAX<=21°F	523	-0.04	110	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	562	0.69	167	18	9.3*	map	table
Extreme low events Days with TMAX<=21°F	523	-0.91	16	200	12.5*	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	562	86	85	1.0	map	table
Extreme low events Days with TMAX<=21°F	523	58	100	1.7*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7548 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	0.25	111	45	2.5*	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	7553 by year	0.03"		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"	1635	0.12"	-0.07	261	323	1.2*	map	table
Extreme events Days with PRCP>0.18"	326	0.35"	0.03	54	55	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"	1635	0.12"	-0.25	188	327	1.7*	map	table
Extreme events Days with PRCP>0.18"	326	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"	1635	0.12"	242	271	1.1	map	table
Extreme events Days with PRCP>0.18"	326	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	6028 by year	0.31"		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"	747	2.48"	-0.05	133	151	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"	747	2.48"	-0.45	62	187	3.0*	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"	747	2.48"	107	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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