PLAINS, MONTANA

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Elevation: 1049 meters Latitude: 47 23N Longitude: 114 48W

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

08:25 am

10:47 pm
Local Time
11:54 pm EDT
28 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		8.4		-2.9		1.1		3.2		7.2		12.7		16.4		20.2		20.1		14.4		8.1		2.8		-1.6

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		15.4		1.9		5.8		11.1		14.8		20.7		24.7		29.3		31.5		22.4		13.8		5.5		1.8

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.7		-6.4		-3.9		-1.4		0.5		5.1		7.9		10.1		10.4		4.8		0.7		-2.6		-6.1

Highest Recorded Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		40.6		15.6		17.2		22.8		27.8		35		36.1		38.3		40.6		37.8		29.4		17.2		16.1

Lowest Recorded Temperature

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-31.1		-27.2		-22.8		-18.9		-8.9		-4.4		-3.9		2.2		1.7		-3.9		-12.2		-17.8		-31.1

Average Number of Days Above 90F/32C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.6		---		---		---		---		0.2		2.3		11.9		12.7		1.5		---		---		---

Average Number of Days Below 32F/0C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		150.2		26.7		22.6		23.4		15.7		3.3		0.2		---		---		2.1		10.3		19.8		26.1

Average Number of Days Below 0F/-17C

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5		3.1		0.2		0.1		---		---		---		---		---		---		---		0.1		1.5

PRECIPITATION

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		376		15		9		24		35		71		55		37		49		35		20		13		13

Average Number of Days With Precipitation

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		118		15		9		12		11		9		11		5		5		8		9		11		13

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		161		56		59		70		71		161		150		115		112		155		77		45		34

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		2		---		---		---		24		12		---		8		1		---		---		4

Most Precipitation Reported in a Day

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		78.7		25.4		36.6		17.5		31.8		19.8		78.7		19.6		31.2		22.9		17.5		37.3		49.5

Avg. No. of Days w/Precip. Above 0.2in/5mm

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52		7		3		4		4		4		6		2		3		5		5		4		5

Avg. # of Days w/Precip. Above 0.4in/10mm

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7		1		1		---		1		---		1		---		---		1		1		---		1

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		110.5		39.1		12.4		15.8		3		0.8		---		---		---		---		0.8		8.6		30

Most Snow Reported in a Month

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		104.9		104.9		29		26.7		8.6		5.1		---		---		---		---		6.3		17.8		80.8

DEGREE DAYS

Heating Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2263.3		485.6		331.7		297.2		168.9		46.7		5.6		---		1.1		29.4		151.7		298.9		446.7

Cooling Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		180.6		---		---		---		---		1.7		20.6		71.7		75		11.7		---		---		---

Growing Degree Days

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1036.2		---		---		---		---		82.7		193.3		315.2		311.7		133.3		---		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.6		10.9		12.5		14.2		15.8		16.6		16.1		14.7		13		11.3		9.9		9.1

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		5		8.3		12.6		16.9		19.4		21.6		24.3		21.1		15.2		9.3		5.3		4.2

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.2		3		4.3		6.2		7.6		8.9		9.4		9.5		8.2		6.7		4.6		3.1		2.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.1		8.8		12.6		15.7		17.6		17.9		18.8		21.6		21.1		17.6		12.6		8.8		7.6

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		7.6		11.1		13.9		16.7		17.5		19.9		24.2		22.4		17		11.8		7.5		6.8

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		13.6		5		8.3		12.6		16.9		19.4		21.6		24.3		21.1		15.2		9.3		5.3		4.2

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		6.8		3.2		4.5		7		7.7		9.1		9.6		11.9		9.5		7.5		5.3		3.4		2.8

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.7		10		13.5		19.8		19.9		21.2		21.5		25.8		24.1		21.7		16.3		10.4		8.6

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		18.1		8.7		12.3		18.9		20.5		23.5		25.2		28.1		25.4		21.9		16		9		7.8

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.1		4.6		6.8		10.8		15.1		16.4		18		16.9		18.1		11.3		7.2		4.6		3.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.8		2.8		3.7		5.8		7.5		8.8		9.3		9		7.9		6		3.9		2.8		2.3

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		7.8		10		13		15.4		15		15.7		15		17.9		12.6		9.4		7.2		6.2

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.5		6.6		8.6		10.8		13.3		12.3		13.6		12.5		17.7		10.6		8.3		6		5.3

NEARBY - MAP

NEARBY - LIST

Superior, Montana (14 mi / 22 km)
St. Regis, Montana (15 mi / 24 km)
Hot Springs, Montana (17 mi / 28 km)
Lonepine, Montana (17 mi / 28 km)
Deborgia, Montana (24 mi / 40 km)

GEOBA.SE

Plains, Montana