SUMMIT, MT - COOP Northwest station 247978

247978 - SUMMIT, Montana

Latitude
48° 19´N

Longitude
113° 21´W

Elevation
1595 meters

10 nearest COOP Northwest stations

1 mi	SSW :	UPPER COLUMBIA STN LAB, MT
7 mi	NNE :	EAST GLACIER, MT
7 mi	NNE :	EAST GLACIER, MT
7 mi	W :	ESSEX, MT
13 mi	NE :	BROWNING NO 2, MT
14 mi	NE :	BROWNING, MT
17 mi	N :	ST MARY, MT
19 mi	WNW :	WEST GLACIER, MT
19 mi	WNW :	WEST GLACIER, MT
22 mi	NNW :	MANY GLACIER, MT

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

	Total observations	%	NDJFM observations	%
TMAX	10785	59.1%	4389	58.0%
TMIN	10729	58.7%	4381	57.9%
PRCP	10892	59.6%	4413	58.3%
SNOW	10134	55.5%	3869	51.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4389 by year	29.0°F	12.7°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>=45°F	345	-0.06	42	39	1.1	map	table
Extreme low events Days with TMAX<=8°F	322	-0.45	42	95	2.3*	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>=45°F	345	0.77	116	10	11.6*	map	table
Extreme low events Days with TMAX<=8°F	322	-1.17	7	153	21.9*	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>=45°F	345	57	77	1.4	map	table
Extreme low events Days with TMAX<=8°F	322	42	89	2.1*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4381 by year	12.7°F	16.3°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<=-18°F	294	-0.54	43	94	2.2*	map	table
Extreme high events Days with TMIN>=31°F	332	-0.08	48	54	1.1	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<=-18°F	294	-1.20	4	136	34.0*	map	table
Extreme high events Days with TMIN>=31°F	332	0.77	114	9	12.7*	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<=-18°F	294	49	76	1.6	map	table
Extreme high events Days with TMIN>=31°F	332	40	84	2.1*	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	4413 by year	0.15"		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"	2509	0.26"	-0.22	323	524	1.6*	map	table
Extreme events Days with PRCP>0.40"	451	0.74"	-0.10	62	74	1.2	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"	2509	0.26"	-0.38	224	601	2.7*	map	table
Extreme events Days with PRCP>0.40"	451	0.74"	-0.70	17	136	8.0*	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"	2509	0.26"	299	673	2.3*	map	table
Extreme events Days with PRCP>0.40"	451	0.74"	41	129	3.1*	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	3869 by year	1.36"		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"	1706	3.09"	-0.17	239	344	1.4*	map	table
Extreme events Days with SNOW>4.5"	327	8.28"	-0.17	47	63	1.3	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"	1706	3.09"	-0.48	121	442	3.7*	map	table
Extreme events Days with SNOW>4.5"	327	8.28"	-0.89	11	116	10.5*	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"	1706	3.09"	223	427	1.9*	map	table
Extreme events Days with SNOW>4.5"	327	8.28"	44	88	2.0*	map	table

SNOW under 2 index extremes Help

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