COLUMBUS, MT - COOP Northwest station 241938

241938 - COLUMBUS, Montana

Latitude
45° 38´N

Longitude
109° 16´W

Elevation
1093 meters

10 nearest COOP Northwest stations

8 mi	WNW :	REEDPOINT, MT
10 mi	SW :	FISHTAIL, MT
11 mi	SSE :	ROBERTS 1 N, MT
12 mi	N :	RAPELJE 4 S, MT
14 mi	SSW :	ROSCOE, MT
16 mi	SSW :	ROSCOE 4 SW, MT
17 mi	S :	RED LODGE 2 N, MT
18 mi	WSW :	NYE 2, MT
21 mi	WSW :	NYE, MT
21 mi	SW :	MYSTIC LAKE, MT

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

	Total observations	%	NDJFM observations	%
TMAX	17743	97.2%	7276	96.2%
TMIN	17759	97.2%	7258	96.0%
PRCP	17884	97.9%	7290	96.4%
SNOW	15055	82.4%	5339	70.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7276 by year	42.4°F	14.9°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>=62°F	548	0.33	105	42	2.5*	map	table
Extreme low events Days with TMAX<=17°F	487	-0.25	88	134	1.5*	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>=62°F	548	0.62	162	23	7.0*	map	table
Extreme low events Days with TMAX<=17°F	487	-0.96	21	205	9.8*	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>=62°F	548	84	91	1.1	map	table
Extreme low events Days with TMAX<=17°F	487	49	80	1.6*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7258 by year	15.8°F	14.1°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<=-9°F	526	-0.18	98	134	1.4	map	table
Extreme high events Days with TMIN>=33°F	538	0.35	120	48	2.5*	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<=-9°F	526	-1.02	18	237	13.2*	map	table
Extreme high events Days with TMIN>=33°F	538	0.30	91	38	2.4*	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<=-9°F	526	53	93	1.8*	map	table
Extreme high events Days with TMIN>=33°F	538	74	99	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	7290 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"	1007	0.15"	-0.08	157	188	1.2	map	table
Extreme events Days with PRCP>0.24"	199	0.40"	-0.06	30	31	1.0	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"	1007	0.15"	-0.39	99	253	2.6*	map	table
Extreme events Days with PRCP>0.24"	199	0.40"	-0.32	24	42	1.8*	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"	1007	0.15"	146	158	1.1	map	table
Extreme events Days with PRCP>0.24"	199	0.40"	31	31	1.0	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	5339 by year	0.20"		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"	351	2.97"	-0.18	51	74	1.5	map	table
Extreme events Days with SNOW>4.0"	59	6.58"	-0.13	13	11	1.2	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"	351	2.97"	-0.59	29	110	3.8*	map	table
Extreme events Days with SNOW>4.0"	59	6.58"	-0.56	5	16	3.2*	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"	351	2.97"	25	76	3.0*	map	table
Extreme events Days with SNOW>4.0"	59	6.58"	7	14	2.0	map	table

SNOW under 2 index extremes Help

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