ILIAD, MT - COOP Northwest station 244368

244368 - ILIAD, Montana

Latitude
47° 47´N

Longitude
109° 47´W

Elevation
899 meters

10 nearest COOP Northwest stations

14 mi	SE :	WINIFRED, MT
19 mi	SSW :	DENTON 1 NNE, MT
25 mi	SSE :	HILGER, MT
31 mi	S :	MOCCASIN EXPERIMENT STN, MT
31 mi	WSW :	GERALDINE 6 SE, MT
32 mi	SSE :	LEWISTOWN MUNICIPAL ARPT, MT
33 mi	S :	HOBSON, MT
33 mi	WSW :	GERALDINE, MT
40 mi	N :	WARRICK 2 NW, MT
40 mi	W :	LOMA 1 WNW, MT

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

	Total observations	%	NDJFM observations	%
TMAX	13192	72.2%	5433	71.8%
TMIN	13156	72.0%	5414	71.6%
PRCP	13607	74.5%	5141	68.0%
SNOW	9481	51.9%	2762	36.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5433 by year	37.5°F	17.3°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>=60°F	385	0.49	101	22	4.6*	map	table
Extreme low events Days with TMAX<=7°F	373	-0.61	42	134	3.2*	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>=60°F	385	0.69	114	17	6.7*	map	table
Extreme low events Days with TMAX<=7°F	373	-1.09	10	162	16.2*	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>=60°F	385	85	32	2.7*	map	table
Extreme low events Days with TMAX<=7°F	373	50	30	1.7*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5414 by year	12.9°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	375	-0.40	49	105	2.1*	map	table
Extreme high events Days with TMIN>=32°F	428	0.41	103	32	3.2*	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<=-15°F	375	-1.08	12	168	14.0*	map	table
Extreme high events Days with TMIN>=32°F	428	0.45	97	24	4.0*	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	375	41	30	1.4	map	table
Extreme high events Days with TMIN>=32°F	428	61	50	1.2	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	5141 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"	454	0.20"	-0.04	68	70	1.0	map	table
Extreme events Days with PRCP>0.30"	80	0.55"	-0.25	11	17	1.5	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"	454	0.20"	-0.30	44	90	2.0*	map	table
Extreme events Days with PRCP>0.30"	80	0.55"	-0.25	11	16	1.5	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"	454	0.20"	56	86	1.5*	map	table
Extreme events Days with PRCP>0.30"	80	0.55"	11	7	1.6	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	2762 by year	0.08"		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"	96	2.36"	0.12	20	15	1.3	map	table
Extreme events Days with SNOW>4.0"	14	5.54"	0.07	3	3	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"	96	2.36"	-0.57	5	19	3.8*	map	table
Extreme events Days with SNOW>4.0"	14	5.54"	-0.81	2	5	2.5	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"	96	2.36"	9	13	1.4	map	table
Extreme events Days with SNOW>4.0"	14	5.54"	4	0	Inf	map	table

SNOW under 2 index extremes Help

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