WEST YELLOWSTONE, MT - COOP Northwest station 248857

248857 - WEST YELLOWSTONE, Montana

Latitude
44° 39´N

Longitude
111° 6´W

Elevation
2030 meters

10 nearest COOP Northwest stations

11 mi	NW :	HEBGEN DAM, MT
12 mi	SW :	ISLAND PARK, ID
21 mi	W :	LAKEVIEW, MT
25 mi	WSW :	KILGORE, ID
26 mi	SSW :	ASHTON, ID
47 mi	N :	GALLATIN GATEWAY 32 S, MT
51 mi	N :	GALLATIN GATEWAY 26 SSW, MT
52 mi	N :	GALLATIN GATEWAY 26 S, MT
53 mi	W :	MONIDA 5 NE, MT
53 mi	NNW :	CAMERON, MT

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

	Total observations	%	NDJFM observations	%
TMAX	16829	92.1%	6879	91.0%
TMIN	16848	92.3%	6894	91.2%
PRCP	16859	92.3%	6905	91.3%
SNOW	15696	85.9%	6216	82.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6879 by year	29.7°F	10.5°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	489	0.15	81	56	1.4*	map	table
Extreme low events Days with TMAX<=14°F	487	0.06	110	98	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>=45°F	489	0.78	159	15	10.6*	map	table
Extreme low events Days with TMAX<=14°F	487	-0.89	24	182	7.6*	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	489	86	67	1.3	map	table
Extreme low events Days with TMAX<=14°F	487	63	91	1.4*	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	6894 by year	5.0°F	16.1°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<=-22°F	488	-0.05	105	104	1.0	map	table
Extreme high events Days with TMIN>=26°F	492	0.15	89	72	1.2	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<=-22°F	488	-0.44	42	118	2.8*	map	table
Extreme high events Days with TMIN>=26°F	492	0.20	90	52	1.7*	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<=-22°F	488	69	93	1.3	map	table
Extreme high events Days with TMIN>=26°F	492	82	109	1.3	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	6905 by year	0.07"		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"	3183	0.14"	0.03	540	539	1.0	map	table
Extreme events Days with PRCP>0.23"	621	0.41"	0.08	113	97	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"	3183	0.14"	-0.36	325	778	2.4*	map	table
Extreme events Days with PRCP>0.23"	621	0.41"	-0.58	40	198	5.0*	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"	3183	0.14"	507	625	1.2*	map	table
Extreme events Days with PRCP>0.23"	621	0.41"	108	135	1.2	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	6216 by year	0.99"		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"	2541	2.43"	0.06	455	412	1.1	map	table
Extreme events Days with SNOW>4.0"	394	6.92"	0.01	65	68	1.0	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"	2541	2.43"	-0.41	242	656	2.7*	map	table
Extreme events Days with SNOW>4.0"	394	6.92"	-0.88	17	161	9.5*	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"	2541	2.43"	448	498	1.1	map	table
Extreme events Days with SNOW>4.0"	394	6.92"	65	93	1.4	map	table

SNOW under 2 index extremes Help

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