CHESTER 31 N, MT - COOP Northwest station 241695

241695 - CHESTER 31 N, Montana

Latitude
48° 58´N

Longitude
110° 56´W

Elevation
1000 meters

10 nearest COOP Northwest stations

4 mi	SE :	JOPLIN 23 N, MT
10 mi	E :	RUDYARD 27 N, MT
16 mi	SE :	HINGHAM 11 N, MT
17 mi	SSE :	JOPLIN, MT
17 mi	E :	SIMPSON 6 NW, MT
19 mi	S :	CHESTER, MT
21 mi	W :	CHESTER 26 NNW, MT
22 mi	SE :	HINGHAM, MT
24 mi	SE :	GILDFORD, MT
27 mi	ESE :	HAVRE 22 NW, MT

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

	Total observations	%	NDJFM observations	%
TMAX	3744	20.5%	1473	19.5%
TMIN	3713	20.3%	1483	19.6%
PRCP	3843	21.0%	1501	19.8%
SNOW	3398	18.6%	1174	15.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1473 by year	37.9°F	16.0°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	114	0.42	25	4	6.2*	map	table
Extreme low events Days with TMAX<=9°F	103	-0.34	13	32	2.5*	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	114	0.78	38	1	38.0*	map	table
Extreme low events Days with TMAX<=9°F	103	-0.67	7	30	4.3*	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	114	29	20	1.4	map	table
Extreme low events Days with TMAX<=9°F	103	16	18	1.1	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1483 by year	15.8°F	15.4°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<=-11°F	101	-0.37	12	32	2.7*	map	table
Extreme high events Days with TMIN>=35°F	119	0.89	50	2	25.0*	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<=-11°F	101	-0.77	4	35	8.8*	map	table
Extreme high events Days with TMIN>=35°F	119	0.68	34	3	11.3*	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<=-11°F	101	18	22	1.2	map	table
Extreme high events Days with TMIN>=35°F	119	27	38	1.4	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	1501 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"	142	0.11"	-0.21	17	29	1.7	map	table
Extreme events Days with PRCP>0.16"	25	0.31"	-0.59	4	9	2.2	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"	142	0.11"	-0.24	22	33	1.5	map	table
Extreme events Days with PRCP>0.16"	25	0.31"	0.19	6	3	2.0	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"	142	0.11"	25	36	1.4	map	table
Extreme events Days with PRCP>0.16"	25	0.31"	5	5	1.0	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	1174 by year	0.09"		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"	88	1.25"	-0.23	10	17	1.7	map	table
Extreme events Days with SNOW>2.1"	14	3.09"	0.05	2	1	2.0	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"	88	1.25"	-0.40	11	23	2.1	map	table
Extreme events Days with SNOW>2.1"	14	3.09"	-0.64	0	4	Inf	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"	88	1.25"	8	32	4.0*	map	table
Extreme events Days with SNOW>2.1"	14	3.09"	0	7	Inf	map	table

SNOW under 2 index extremes Help

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