ST IGNATIUS, MT - COOP Northwest station 247286

247286 - ST IGNATIUS, Montana

Latitude
47° 19´N

Longitude
114° 6´W

Elevation
884 meters

10 nearest COOP Northwest stations

10 mi	NNW :	ROUND BUTTE 1 NNE, MT
15 mi	N :	POLSON, MT
16 mi	NNW :	POLSON KERR DAM, MT
17 mi	SW :	ALBERTON, MT
20 mi	W :	PARADISE, MT
20 mi	NW :	HOT SPRINGS, MT
21 mi	NNW :	BIG ARM, MT
22 mi	NW :	LONEPINE, MT
23 mi	WSW :	SUPERIOR, MT
23 mi	NW :	LONEPINE 1 WNW, MT

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

	Total observations	%	NDJFM observations	%
TMAX	18098	99.1%	7514	99.4%
TMIN	18078	99.0%	7513	99.3%
PRCP	18096	99.1%	7500	99.2%
SNOW	17836	97.7%	7420	98.1%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7514 by year	39.5°F	12.4°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	530	0.21	110	63	1.7*	map	table
Extreme low events Days with TMAX<=19°F	525	-0.03	121	126	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>=56°F	530	0.44	125	32	3.9*	map	table
Extreme low events Days with TMAX<=19°F	525	-1.03	9	235	26.1*	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	530	90	66	1.4	map	table
Extreme low events Days with TMAX<=19°F	525	50	96	1.9*	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	7513 by year	22.4°F	12.3°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<=1°F	516	-0.06	116	122	1.1	map	table
Extreme high events Days with TMIN>=37°F	503	0.19	95	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<=1°F	516	-1.01	10	223	22.3*	map	table
Extreme high events Days with TMIN>=37°F	503	0.27	92	40	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<=1°F	516	51	103	2.0*	map	table
Extreme high events Days with TMIN>=37°F	503	71	94	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	7500 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"	2419	0.10"	-0.06	384	436	1.1	map	table
Extreme events Days with PRCP>0.16"	451	0.32"	-0.15	61	93	1.5*	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"	2419	0.10"	-0.28	275	520	1.9*	map	table
Extreme events Days with PRCP>0.16"	451	0.32"	-0.38	56	108	1.9*	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"	2419	0.10"	340	421	1.2*	map	table
Extreme events Days with PRCP>0.16"	451	0.32"	58	74	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	7420 by year	0.30"		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"	1299	1.73"	-0.20	205	290	1.4*	map	table
Extreme events Days with SNOW>2.7"	254	4.83"	-0.26	37	65	1.8*	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"	1299	1.73"	-0.65	84	414	4.9*	map	table
Extreme events Days with SNOW>2.7"	254	4.83"	-0.86	11	87	7.9*	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"	1299	1.73"	156	259	1.7*	map	table
Extreme events Days with SNOW>2.7"	254	4.83"	25	51	2.0*	map	table

SNOW under 2 index extremes Help

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