ROBERTS 1 N, MT - COOP Northwest station 247128

247128 - ROBERTS 1 N, Montana

Latitude
45° 23´N

Longitude
109° 10´W

Elevation
1423 meters

COOP Northwest

Montana

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10 nearest COOP Northwest stations

7 mi	SSW :	RED LODGE 2 N, MT
10 mi	W :	ROSCOE, MT
10 mi	WNW :	FISHTAIL, MT
11 mi	NNW :	COLUMBUS, MT
12 mi	WSW :	ROSCOE 4 SW, MT
13 mi	SSE :	BELFRY 4 SSW, MT
17 mi	NW :	REEDPOINT, MT
17 mi	WSW :	MYSTIC LAKE, MT
19 mi	W :	NYE 2, MT
21 mi	W :	NYE, MT

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

	Total observations	%	NDJFM observations	%
TMAX	0	0.0%	0	0.0%
TMIN	0	0.0%	0	0.0%
PRCP	16614	91.0%	6987	92.4%
SNOW	10423	57.1%	2964	39.2%

TMAX top of page

Data not shown:
Less than 5% of days have TMAX observations during NDJFM over 1948-1997
No TMAX extreme events during NDJFM over 1948-1997

TMIN top of page

Data not shown:
Less than 5% of days have TMIN observations during NDJFM over 1948-1997
No TMIN extreme events during NDJFM over 1948-1997

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	6987 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"	1152	0.13"	-0.18	168	248	1.5*	map	table
Extreme events Days with PRCP>0.19"	227	0.36"	-0.19	32	51	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"	1152	0.13"	-0.29	125	248	2.0*	map	table
Extreme events Days with PRCP>0.19"	227	0.36"	-0.26	26	47	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"	1152	0.13"	172	157	1.1	map	table
Extreme events Days with PRCP>0.19"	227	0.36"	38	34	1.1	map	table

PRCP under 2 index extremes Help

Station table

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	2964 by year	0.23"		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"	282	2.40"	-0.57	31	98	3.2*	map	table
Extreme events Days with SNOW>3.0"	56	5.21"	-0.81	4	22	5.5*	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"	282	2.40"	-0.52	20	75	3.8*	map	table
Extreme events Days with SNOW>3.0"	56	5.21"	-0.64	3	17	5.7*	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"	282	2.40"	27	47	1.7*	map	table
Extreme events Days with SNOW>3.0"	56	5.21"	5	15	3.0	map	table

SNOW under 2 index extremes Help