HARLEM 4 W, MT - COOP Northwest station 243929

243929 - HARLEM 4 W, Montana

Latitude
48° 33´N

Longitude
108° 52´W

Elevation
720 meters

10 nearest COOP Northwest stations

11 mi	N :	HOGELAND 7 WSW, MT
16 mi	ENE :	LOST LAKE, MT
18 mi	NE :	TURNER, MT
18 mi	ESE :	DODSON, MT
23 mi	SSE :	HAYS, MT
26 mi	WSW :	CLEVELAND 5 ENE, MT
28 mi	SE :	PHILLIPS 1 S, MT
28 mi	W :	CHINOOK, MT
29 mi	WSW :	CLEVELAND, MT
31 mi	WNW :	CHINOOK 15 N, MT

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

	Total observations	%	NDJFM observations	%
TMAX	17175	94.0%	7074	93.5%
TMIN	17133	93.8%	7060	93.3%
PRCP	17236	94.4%	7013	92.7%
SNOW	15273	83.6%	5839	77.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7074 by year	34.7°F	17.9°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>=59°F	481	0.31	96	41	2.3*	map	table
Extreme low events Days with TMAX<=5°F	526	-0.42	76	164	2.2*	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>=59°F	481	0.64	137	18	7.6*	map	table
Extreme low events Days with TMAX<=5°F	526	-1.19	11	259	23.5*	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>=59°F	481	101	74	1.4	map	table
Extreme low events Days with TMAX<=5°F	526	61	96	1.6*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7060 by year	9.3°F	16.3°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<=-20°F	475	-0.24	79	119	1.5*	map	table
Extreme high events Days with TMIN>=30°F	546	0.29	113	51	2.2*	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<=-20°F	475	-1.09	18	228	12.7*	map	table
Extreme high events Days with TMIN>=30°F	546	0.44	120	35	3.4*	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<=-20°F	475	41	73	1.8*	map	table
Extreme high events Days with TMIN>=30°F	546	96	87	1.1	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	7013 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"	951	0.10"	-0.07	148	172	1.2	map	table
Extreme events Days with PRCP>0.15"	189	0.28"	-0.43	14	44	3.1*	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"	951	0.10"	-0.45	89	247	2.8*	map	table
Extreme events Days with PRCP>0.15"	189	0.28"	-0.57	10	45	4.5*	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"	951	0.10"	128	141	1.1	map	table
Extreme events Days with PRCP>0.15"	189	0.28"	20	27	1.4	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	5839 by year	0.16"		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"	524	1.75"	-0.20	96	134	1.4*	map	table
Extreme events Days with SNOW>3.0"	71	4.61"	-0.52	4	17	4.2*	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"	524	1.75"	-0.58	48	154	3.2*	map	table
Extreme events Days with SNOW>3.0"	71	4.61"	-0.90	5	24	4.8*	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"	524	1.75"	82	75	1.1	map	table
Extreme events Days with SNOW>3.0"	71	4.61"	10	21	2.1	map	table

SNOW under 2 index extremes Help

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