CHESTER, MT - COOP Northwest station 241692

241692 - CHESTER, Montana

Latitude
48° 31´N

Longitude
110° 58´W

Elevation
965 meters

10 nearest COOP Northwest stations

6 mi	ENE :	JOPLIN, MT
10 mi	SSE :	TIBER LAKE, MT
15 mi	E :	HINGHAM, MT
16 mi	NNE :	JOPLIN 23 N, MT
17 mi	ENE :	HINGHAM 11 N, MT
18 mi	E :	GILDFORD, MT
19 mi	N :	CHESTER 31 N, MT
20 mi	NNE :	RUDYARD 27 N, MT
23 mi	WSW :	TIBER DAM, MT
24 mi	ESE :	LONESOME LAKE, MT

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

	Total observations	%	NDJFM observations	%
TMAX	17559	96.1%	7348	97.2%
TMIN	17479	95.7%	7334	97.0%
PRCP	17751	97.2%	7327	96.9%
SNOW	11203	61.3%	3426	45.3%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7348 by year	35.5°F	16.7°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>=57°F	516	0.30	97	37	2.6*	map	table
Extreme low events Days with TMAX<=5°F	491	-0.47	69	158	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>=57°F	516	0.72	160	20	8.0*	map	table
Extreme low events Days with TMAX<=5°F	491	-1.16	16	239	14.9*	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>=57°F	516	96	66	1.5*	map	table
Extreme low events Days with TMAX<=5°F	491	47	59	1.3	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7334 by year	8.9°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<=-19°F	500	-0.27	83	133	1.6*	map	table
Extreme high events Days with TMIN>=30°F	496	0.32	116	48	2.4*	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<=-19°F	500	-1.09	12	232	19.3*	map	table
Extreme high events Days with TMIN>=30°F	496	0.60	141	23	6.1*	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<=-19°F	500	39	90	2.3*	map	table
Extreme high events Days with TMIN>=30°F	496	63	61	1.0	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	7327 by year	0.01"		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"	905	0.10"	-0.23	111	198	1.8*	map	table
Extreme events Days with PRCP>0.16"	163	0.28"	-0.16	20	32	1.6	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"	905	0.10"	-0.51	88	258	2.9*	map	table
Extreme events Days with PRCP>0.16"	163	0.28"	-0.42	16	36	2.2*	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"	905	0.10"	106	138	1.3*	map	table
Extreme events Days with PRCP>0.16"	163	0.28"	17	20	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	3426 by year	0.07"		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"	137	1.65"	-0.24	18	33	1.8	map	table
Extreme events Days with SNOW>2.5"	27	4.17"	-0.12	2	3	1.5	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"	137	1.65"	-0.77	10	45	4.5*	map	table
Extreme events Days with SNOW>2.5"	27	4.17"	-0.38	4	4	1.0	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"	137	1.65"	7	28	4.0*	map	table
Extreme events Days with SNOW>2.5"	27	4.17"	2	6	3.0	map	table

SNOW under 2 index extremes Help

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