WEST YELLOWSTONE, MT - HCND station 248857

248857 - WEST YELLOWSTONE, Montana

Latitude
44° 40´N

Longitude
111° 6´W

Elevation
6659 feet

10 nearest HCND stations

19 mi	NW :	HEBGEN DAM, MT
29 mi	NE :	YELLOWSTONE PARK MAMMOTH, WY
35 mi	ESE :	LAKE YELLOWSTONE, WY
44 mi	SSW :	ASHTON, ID
57 mi	NNW :	ENNIS, MT
60 mi	S :	ALTA 1NNW, WY
61 mi	NW :	VIRGINIA CITY, MT
61 mi	SSE :	MORAN 5WNW, WY
63 mi	NNW :	NORRIS MADISON POWER HOUSE, MT
70 mi	N :	BOZEMAN MONTANA ST UNIV, MT

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

	Total observations	%	NDJFM observations	%
TMAX	16876	92.4%	6976	92.2%
TMIN	16881	92.4%	6963	92.1%
PRCP	13523	74.0%	5670	75.0%
SNOW	11330	62.0%	4691	62.0%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6976 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	499	0.14	81	58	1.4	map	table
Extreme low events Days with TMAX<=14°F	500	-0.01	106	110	1.0	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	499	0.79	165	15	11.0*	map	table
Extreme low events Days with TMAX<=14°F	500	-0.83	32	182	5.7*	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	499	86	67	1.3	map	table
Extreme low events Days with TMAX<=14°F	500	62	91	1.5*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6963 by year	5.0°F	16.2°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	500	-0.07	105	109	1.0	map	table
Extreme high events Days with TMIN>=26°F	504	0.14	88	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	500	-0.42	45	118	2.6*	map	table
Extreme high events Days with TMIN>=26°F	504	0.21	95	52	1.8*	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	500	69	93	1.3	map	table
Extreme high events Days with TMIN>=26°F	504	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	5670 by year	0.08"		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"	3246	0.14"	0.02	546	549	1.0	map	table
Extreme events Days with PRCP>0.23"	630	0.41"	0.07	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"	3246	0.14"	-0.35	333	794	2.4*	map	table
Extreme events Days with PRCP>0.23"	630	0.41"	-0.59	41	202	4.9*	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"	3246	0.14"	506	625	1.2*	map	table
Extreme events Days with PRCP>0.23"	630	0.41"	107	135	1.3	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	4691 by year	1.35"		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"	2600	2.43"	0.06	460	422	1.1	map	table
Extreme events Days with SNOW>4.0"	405	6.92"	0.00	65	70	1.1	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"	2600	2.43"	-0.41	248	672	2.7*	map	table
Extreme events Days with SNOW>4.0"	405	6.92"	-0.89	17	165	9.7*	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"	2600	2.43"	448	498	1.1	map	table
Extreme events Days with SNOW>4.0"	405	6.92"	65	93	1.4	map	table

SNOW under 2 index extremes Help

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