BUTTE BERT MOONEY ARPT, MT - COOP Northwest station 241318

241318 - BUTTE BERT MOONEY ARPT, Montana

Latitude
45° 58´N

Longitude
112° 30´W

Elevation
1689 meters

10 nearest COOP Northwest stations

11 mi	SE :	WHITEHALL AIRPORT, MT
12 mi	SW :	DIVIDE, MT
12 mi	ESE :	WHITEHALL, MT
13 mi	SSE :	SILVER STAR, MT
14 mi	WSW :	WISE RIVER 1 E, MT
15 mi	SSW :	MELROSE, MT
18 mi	SSE :	TWIN BRIDGES, MT
21 mi	SSW :	GLEN 2 E, MT
24 mi	SSW :	APEX 2 NW, MT
29 mi	SSE :	ALDER, MT

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

	Total observations	%	NDJFM observations	%
TMAX	18254	100.0%	7559	99.9%
TMIN	18249	99.9%	7557	99.9%
PRCP	18260	100.0%	7562	100.0%
SNOW	18251	99.9%	7556	99.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7559 by year	34.5°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>=52°F	508	0.28	89	34	2.6*	map	table
Extreme low events Days with TMAX<=14°F	524	-0.01	113	112	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>=52°F	508	0.69	157	14	11.2*	map	table
Extreme low events Days with TMAX<=14°F	524	-0.88	24	193	8.0*	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>=52°F	508	80	80	1.0	map	table
Extreme low events Days with TMAX<=14°F	524	63	81	1.3	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	7557 by year	10.0°F	15.7°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<=-17°F	508	-0.05	107	118	1.1	map	table
Extreme high events Days with TMIN>=30°F	528	0.15	92	63	1.5*	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<=-17°F	508	-0.91	18	198	11.0*	map	table
Extreme high events Days with TMIN>=30°F	528	0.26	108	47	2.3*	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<=-17°F	508	54	93	1.7*	map	table
Extreme high events Days with TMIN>=30°F	528	69	104	1.5*	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	7562 by year	0.02"		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"	2188	0.06"	-0.03	363	400	1.1	map	table
Extreme events Days with PRCP>0.09"	424	0.19"	0.06	83	66	1.3	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"	2188	0.06"	-0.31	221	475	2.1*	map	table
Extreme events Days with PRCP>0.09"	424	0.19"	-0.42	35	110	3.1*	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"	2188	0.06"	303	371	1.2*	map	table
Extreme events Days with PRCP>0.09"	424	0.19"	61	74	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	7556 by year	0.27"		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"	1932	1.07"	-0.00	338	347	1.0	map	table
Extreme events Days with SNOW>1.7"	371	3.08"	-0.01	68	61	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"	1932	1.07"	-0.40	158	457	2.9*	map	table
Extreme events Days with SNOW>1.7"	371	3.08"	-0.54	27	101	3.7*	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"	1932	1.07"	260	324	1.2*	map	table
Extreme events Days with SNOW>1.7"	371	3.08"	59	60	1.0	map	table

SNOW under 2 index extremes Help

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