BILLINGS LOGAN INT'L ARPT, MT - COOP Northwest station 240807

240807 - BILLINGS LOGAN INT'L ARPT, Montana

Latitude
45° 48´N

Longitude
108° 33´W

Elevation
1087 meters

10 nearest COOP Northwest stations

2 mi	SE :	BILLINGS WATER PLANT, MT
10 mi	SW :	LAUREL 3 WSW, MT
10 mi	ENE :	HUNTLEY EXPERIMENT STN, MT
12 mi	W :	MOLT 6 SW, MT
14 mi	ENE :	BALLANTINE, MT
15 mi	SSW :	EDGAR 6 E, MT
15 mi	S :	PRYOR, MT
18 mi	SSW :	EDGAR 9 SE, MT
18 mi	SW :	JOLIET, MT
24 mi	SSW :	BRIDGER 1 S, MT

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

	Total observations	%	NDJFM observations	%
TMAX	18254	100.0%	7555	99.9%
TMIN	18206	99.7%	7529	99.6%
PRCP	18090	99.1%	7478	98.9%
SNOW	18230	99.8%	7536	99.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7555 by year	39.2°F	15.9°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	576	0.29	112	51	2.2*	map	table
Extreme low events Days with TMAX<=11°F	526	-0.32	90	152	1.7*	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	576	0.64	171	25	6.8*	map	table
Extreme low events Days with TMAX<=11°F	526	-1.01	24	226	9.4*	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	576	89	81	1.1	map	table
Extreme low events Days with TMAX<=11°F	526	55	89	1.6*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7529 by year	20.2°F	14.3°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<=-6°F	520	-0.34	78	146	1.9*	map	table
Extreme high events Days with TMIN>=38°F	509	0.32	104	51	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<=-6°F	520	-1.11	19	242	12.7*	map	table
Extreme high events Days with TMIN>=38°F	509	0.59	132	20	6.6*	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<=-6°F	520	49	104	2.1*	map	table
Extreme high events Days with TMIN>=38°F	509	81	88	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	7478 by year	0.03"		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"	1876	0.11"	-0.12	282	368	1.3*	map	table
Extreme events Days with PRCP>0.17"	358	0.32"	-0.11	57	71	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"	1876	0.11"	-0.37	191	452	2.4*	map	table
Extreme events Days with PRCP>0.17"	358	0.32"	-0.46	32	87	2.7*	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"	1876	0.11"	260	315	1.2*	map	table
Extreme events Days with PRCP>0.17"	358	0.32"	53	80	1.5	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	7536 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"	1608	1.33"	-0.18	243	342	1.4*	map	table
Extreme events Days with SNOW>2.2"	308	3.97"	-0.11	51	63	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"	1608	1.33"	-0.50	133	433	3.3*	map	table
Extreme events Days with SNOW>2.2"	308	3.97"	-0.57	22	84	3.8*	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"	1608	1.33"	216	281	1.3*	map	table
Extreme events Days with SNOW>2.2"	308	3.97"	34	67	2.0*	map	table

SNOW under 2 index extremes Help

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