FORT ASSINNIBOINE, MT - HCND station 243110

243110 - FORT ASSINNIBOINE, Montana

Latitude
48° 31´N

Longitude
109° 48´W

Elevation
2613 feet

10 nearest HCND stations

26 mi	ENE :	CHINOOK, MT
101 mi	S :	MOCCASIN EXPERIMENT STATION, MT
108 mi	E :	FORKS 4NNE, MT
113 mi	W :	VALIER, MT
118 mi	W :	CUT BANK FAA AP, MT
119 mi	WSW :	CHOTEAU AP, MT
126 mi	SW :	CASCADE 5S, MT
133 mi	SSE :	FLATWILLOW 4ENE, MT
139 mi	WSW :	AUGUSTA, MT
157 mi	ESE :	JORDAN, MT

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

	Total observations	%	NDJFM observations	%
TMAX	17822	97.6%	7382	97.6%
TMIN	17848	97.7%	7390	97.7%
PRCP	12394	67.9%	4969	65.7%
SNOW	7635	41.8%	2663	35.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7382 by year	34.9°F	18.0°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	577	0.32	111	44	2.5*	map	table
Extreme low events Days with TMAX<=3°F	514	-0.51	62	158	2.5*	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>=58°F	577	0.62	160	24	6.7*	map	table
Extreme low events Days with TMAX<=3°F	514	-1.13	16	249	15.6*	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	577	108	81	1.3	map	table
Extreme low events Days with TMAX<=3°F	514	49	107	2.2*	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	7390 by year	12.0°F	17.1°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<=-18°F	502	-0.40	72	141	2.0*	map	table
Extreme high events Days with TMIN>=33°F	589	0.40	135	51	2.6*	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<=-18°F	502	-1.04	17	226	13.3*	map	table
Extreme high events Days with TMIN>=33°F	589	0.59	155	28	5.5*	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<=-18°F	502	41	87	2.1*	map	table
Extreme high events Days with TMIN>=33°F	589	97	94	1.0	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	4969 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"	1338	0.08"	-0.14	192	268	1.4*	map	table
Extreme events Days with PRCP>0.13"	240	0.25"	-0.21	35	56	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"	1338	0.08"	-0.45	132	359	2.7*	map	table
Extreme events Days with PRCP>0.13"	240	0.25"	-0.30	28	46	1.6	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"	1338	0.08"	161	236	1.5*	map	table
Extreme events Days with PRCP>0.13"	240	0.25"	30	36	1.2	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	2663 by year	0.30"		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"	553	1.46"	-0.12	90	121	1.3	map	table
Extreme events Days with SNOW>2.0"	105	3.68"	-0.38	9	28	3.1*	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"	553	1.46"	-0.60	46	174	3.8*	map	table
Extreme events Days with SNOW>2.0"	105	3.68"	-0.46	8	19	2.4*	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"	553	1.46"	42	99	2.4*	map	table
Extreme events Days with SNOW>2.0"	105	3.68"	7	15	2.1	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: