ENNIS, MT - COOP Northwest station 242793

242793 - ENNIS, Montana

Latitude
45° 21´N

Longitude
111° 43´W

Elevation
1510 meters

10 nearest COOP Northwest stations

6 mi	NNE :	NORRIS MADISON PUMP HS, MT
6 mi	S :	CAMERON, MT
7 mi	WSW :	VIRGINIA CITY, MT
10 mi	NNE :	NORRIS 3 ENE, MT
12 mi	ESE :	BIG SKY 2 WNW, MT
14 mi	NNW :	PONY, MT
14 mi	ESE :	GALLATIN GATEWAY 26 SSW, MT
14 mi	ESE :	GALLATIN GATEWAY 26 S, MT
15 mi	ENE :	GALLATIN GATEWAY 10SSW, MT
16 mi	NE :	ANCENEY, MT

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

	Total observations	%	NDJFM observations	%
TMAX	17994	98.5%	7400	97.8%
TMIN	17937	98.2%	7351	97.2%
PRCP	18004	98.6%	7411	98.0%
SNOW	12258	67.1%	3641	48.1%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7400 by year	38.6°F	12.5°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>=55°F	615	0.24	102	49	2.1*	map	table
Extreme low events Days with TMAX<=19°F	504	-0.02	106	109	1.0	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>=55°F	615	0.67	189	20	9.4*	map	table
Extreme low events Days with TMAX<=19°F	504	-0.83	17	175	10.3*	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>=55°F	615	92	91	1.0	map	table
Extreme low events Days with TMAX<=19°F	504	55	93	1.7*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7351 by year	18.5°F	13.7°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<=-5°F	532	-0.07	106	122	1.2	map	table
Extreme high events Days with TMIN>=35°F	641	0.14	110	75	1.5*	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<=-5°F	532	-0.85	22	207	9.4*	map	table
Extreme high events Days with TMIN>=35°F	641	0.28	122	49	2.5*	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<=-5°F	532	58	100	1.7*	map	table
Extreme high events Days with TMIN>=35°F	641	98	123	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	7411 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"	1232	0.10"	0.02	207	209	1.0	map	table
Extreme events Days with PRCP>0.15"	215	0.28"	-0.07	31	38	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"	1232	0.10"	-0.23	144	250	1.7*	map	table
Extreme events Days with PRCP>0.15"	215	0.28"	-0.25	24	45	1.9*	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"	1232	0.10"	181	209	1.2	map	table
Extreme events Days with PRCP>0.15"	215	0.28"	32	33	1.0	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3641 by year	0.15"		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"	230	2.45"	-0.15	32	51	1.6	map	table
Extreme events Days with SNOW>4.0"	32	6.12"	0.11	6	6	1.0	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"	230	2.45"	-0.27	22	49	2.2*	map	table
Extreme events Days with SNOW>4.0"	32	6.12"	-0.44	3	9	3.0	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"	230	2.45"	35	28	1.2	map	table
Extreme events Days with SNOW>4.0"	32	6.12"	5	3	1.7	map	table

SNOW under 2 index extremes Help

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