CHINOOK, MT - HCND station 241722

241722 - CHINOOK, Montana

Latitude
48° 35´N

Longitude
109° 14´W

Elevation
2340 feet

10 nearest HCND stations

26 mi	WSW :	FORT ASSINNIBOINE, MT
82 mi	E :	FORKS 4NNE, MT
111 mi	SSW :	MOCCASIN EXPERIMENT STATION, MT
127 mi	SSE :	FLATWILLOW 4ENE, MT
139 mi	SE :	JORDAN, MT
139 mi	W :	VALIER, MT
143 mi	W :	CUT BANK FAA AP, MT
145 mi	WSW :	CHOTEAU AP, MT
149 mi	SW :	CASCADE 5S, MT
164 mi	WSW :	AUGUSTA, MT

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

	Total observations	%	NDJFM observations	%
TMAX	16839	92.2%	6969	92.1%
TMIN	16939	92.8%	7028	92.9%
PRCP	12298	67.3%	4829	63.9%
SNOW	9370	51.3%	3075	40.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6969 by year	34.8°F	18.3°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>=59°F	515	0.30	100	41	2.4*	map	table
Extreme low events Days with TMAX<=3°F	473	-0.39	67	136	2.0*	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>=59°F	515	0.70	153	17	9.0*	map	table
Extreme low events Days with TMAX<=3°F	473	-1.19	14	235	16.8*	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>=59°F	515	97	95	1.0	map	table
Extreme low events Days with TMAX<=3°F	473	51	88	1.7*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7028 by year	10.2°F	17.0°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<=-19°F	489	-0.29	80	125	1.6*	map	table
Extreme high events Days with TMIN>=32°F	495	0.29	105	49	2.1*	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<=-19°F	489	-1.00	15	221	14.7*	map	table
Extreme high events Days with TMIN>=32°F	495	0.36	98	30	3.3*	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<=-19°F	489	45	84	1.9*	map	table
Extreme high events Days with TMIN>=32°F	495	71	77	1.1	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	4829 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"	1154	0.10"	-0.10	162	213	1.3*	map	table
Extreme events Days with PRCP>0.15"	225	0.28"	-0.11	28	35	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"	1154	0.10"	-0.48	115	324	2.8*	map	table
Extreme events Days with PRCP>0.15"	225	0.28"	-0.43	21	54	2.6*	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"	1154	0.10"	142	234	1.6*	map	table
Extreme events Days with PRCP>0.15"	225	0.28"	23	39	1.7	map	table

PRCP under 2 index extremes Help

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3075 by year	0.28"		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"	540	1.59"	0.02	89	87	1.0	map	table
Extreme events Days with SNOW>2.5"	100	3.90"	-0.16	17	20	1.2	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"	540	1.59"	-0.71	35	181	5.2*	map	table
Extreme events Days with SNOW>2.5"	100	3.90"	-0.63	8	27	3.4*	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"	540	1.59"	53	148	2.8*	map	table
Extreme events Days with SNOW>2.5"	100	3.90"	11	20	1.8	map	table

SNOW under 2 index extremes Help

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