ROCK SPRINGS, MT - COOP Northwest station 247136

247136 - ROCK SPRINGS, Montana

Latitude
46° 49´N

Longitude
106° 15´W

Elevation
922 meters

10 nearest COOP Northwest stations

4 mi	ESE :	ROCK SPRINGS 7 SE, MT
16 mi	WNW :	COHAGEN 9 WSW, MT
25 mi	SW :	VANANDA 6 NE, MT
25 mi	SSW :	FORSYTH 2 E, MT
26 mi	SSW :	FORSYTH, MT
34 mi	ESE :	MILES CITY MUNICIPAL ARPT, MT
36 mi	ESE :	MILES CITY, MT
39 mi	NNW :	COHAGEN, MT
41 mi	W :	INGOMAR 21 NE, MT
43 mi	SE :	GARLAND, MT

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

	Total observations	%	NDJFM observations	%
TMAX	16363	89.6%	6768	89.5%
TMIN	16266	89.1%	6756	89.3%
PRCP	16781	91.9%	6953	91.9%
SNOW	11972	65.6%	3902	51.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6768 by year	35.1°F	16.4°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>=58°F	460	0.37	93	32	2.9*	map	table
Extreme low events Days with TMAX<=7°F	469	-0.45	66	155	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>=58°F	460	0.56	125	14	8.9*	map	table
Extreme low events Days with TMAX<=7°F	469	-0.94	19	190	10.0*	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>=58°F	460	87	62	1.4	map	table
Extreme low events Days with TMAX<=7°F	469	38	50	1.3	map	table

TMAX under 2 index extremes Help

Maps - choose one extreme:

TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6756 by year	12.6°F	15.7°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<=-15°F	487	-0.44	69	148	2.1*	map	table
Extreme high events Days with TMIN>=32°F	512	0.30	90	45	2.0*	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<=-15°F	487	-0.80	30	181	6.0*	map	table
Extreme high events Days with TMIN>=32°F	512	0.48	124	29	4.3*	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<=-15°F	487	48	45	1.1	map	table
Extreme high events Days with TMIN>=32°F	512	92	73	1.3	map	table

TMIN under 2 index extremes Help

Maps - choose one extreme:

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	6953 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"	1006	0.07"	-0.13	161	211	1.3*	map	table
Extreme events Days with PRCP>0.10"	183	0.22"	-0.07	27	33	1.2	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"	1006	0.07"	-0.25	133	218	1.6*	map	table
Extreme events Days with PRCP>0.10"	183	0.22"	-0.27	17	34	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"	1006	0.07"	154	119	1.3*	map	table
Extreme events Days with PRCP>0.10"	183	0.22"	25	25	1.0	map	table

PRCP under 2 index extremes Help

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3902 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"	206	1.61"	-0.12	40	52	1.3	map	table
Extreme events Days with SNOW>2.0"	39	4.06"	-0.30	7	13	1.9	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"	206	1.61"	-0.37	19	53	2.8*	map	table
Extreme events Days with SNOW>2.0"	39	4.06"	-0.50	3	10	3.3	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"	206	1.61"	36	29	1.2	map	table
Extreme events Days with SNOW>2.0"	39	4.06"	10	3	3.3	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: