HERON, MONTANA

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Elevation: 2808 feet Latitude: 48 04N Longitude: 115 57W

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

10:28 am

08:26 pm
Local Time
8:09 pm EDT
31 October, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44.2		24.9		29.2		35.4		44.3		52.2		58.2		64.1		62.7		54.5		44.2		33.8		27

Average High Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.4		31.5		37.6		45.7		57.6		67		73.5		82.9		81.7		70.5		56		40.4		32.8

Average Low Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		32		18.4		20.9		25.1		31.1		37.3		42.9		45.4		43.7		38.5		32.5		27.2		21.3

Highest Recorded Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		106		61		59		73		88		96		99		105		106		97		87		69		66

Lowest Recorded Temperature

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-39		-39		-32		-22		-10		19		25		29		21		9		4		-16		-35

Average Number of Days Above 90F/32C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		15.8		---		---		---		---		0.2		1.2		7.3		6.5		0.5		---		---		---

Average Number of Days Above 80F/26C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52.2		---		---		---		0.1		3.1		7.3		18.7		17.8		5.3		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		105.6		---		---		0.1		2.9		10.8		19		27.6		27.8		15.8		1.6		---		---

Average Number of Days Above 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		155.6		---		---		1.7		11.5		21.9		27.4		30.6		30.7		24.7		7.1		0.1		---

Average Number of Days Above 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		210		---		0.8		10.2		22.8		30.3		29.9		31		31		29.6		22		2.2		0.1

Average Number of Days Above 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		267.8		2.9		10.8		25.3		29.8		31		30		31		31		30		30		14.2		1.8

Average Number of Days Below 70F/21C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		365		31		28		31		30		31		30		31		31		30		31		30		31

Average Number of Days Below 60F/15C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		363.9		31		28		31		30		31		29.9		30.4		30.6		30		31		30		31

Average Number of Days Below 50F/10C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		340.3		31		28		31		30		29.9		24.6		22.2		23.7		28.2		30.8		30		31

Average Number of Days Below 40F/4C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		251		31		28		30.7		27		18.3		7.2		3		5.1		15.7		25.4		28.7		31

Average Number of Days Below 32F/0C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		185.3		29.6		26.7		26.8		18.2		8		1.4		0.3		1.1		6		15.4		22.9		28.9

Average Number of Days Below 20F/-6C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38.5		10		8.6		4		0.3		---		---		---		---		---		1.1		3.7		10.7

Average Number of Days Below 10F/-12C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.2		4.1		3.3		0.8		---		---		---		---		---		---		---		0.9		4.1

Average Number of Days Below 0F/-17C

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7.9		3.6		1.7		0.4		---		---		---		---		---		---		---		0.3		1.7

PRECIPITATION

Average Precipitation

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		33.6		4.5		3.3		3		2.1		2.4		2.5		1		1.2		1.8		2.7		4.3		4.7

Average Number of Days With Precipitation

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		137		16		13		14		11		11		11		5		6		8		11		15		16

Most Reported Precipitation in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		16.3		12.3		7.1		7.4		5.1		7.3		6.1		5.6		7.2		7.9		8.5		9.4		16.3

Least Reported Precipitation in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		0.5		---		0.3		0.2		0.2		0.5		---		---		---		---		0.2		0.3

Most Precipitation Reported in a Day

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3.2		2.3		1.9		1.6		1.6		2.8		3.2		1.6		2.9		1.7		1.8		2.2		2.3

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		90.8		11.1		7.7		8.6		7.2		7.7		7.3		4.1		3		4.4		7.6		11.4		10.7

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

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89		11		9		9		7		7		7		3		3		5		7		10		11

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

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		20		3		2		2		1		1		1		---		1		1		2		3		3

Avg. No. of Days w/Precip. Above 0.5in/13mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		18.3		2.6		1.7		1.5		0.9		1.4		1.3		0.7		0.5		1		1.3		2.9		2.5

Avg. No. of Days w/Precip. Above 1in/25mm

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2		1		---		---		---		---		---		---		---		---		---		1		---

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		85.6		27.2		15.8		9.2		1		0.1		---		---		---		---		0.5		8.2		23.6

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44.8		11.4		7		5.1		1.6		0.3		---		---		---		---		0.6		6.4		12.4

Average Snow Cover

Years on Record: 87

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		4		14		17		11		1		---		---		---		---		---		---		1		6

Most Snow Reported in a Month

Years on Record: 98

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		70.8		70.8		67.5		40.8		8.5		3		2.5		---		---		0.3		10.5		36.2		70.5

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26.3		7.3		4.2		3		0.6		---		---		---		---		---		0.2		3.3		7.7

Avg. No. of Days w/Snow Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.1		3.1		1.4		1		---		---		---		---		---		---		---		0.9		2.7

Avg. No. of Days w/Snow Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.2		1.4		0.7		0.4		---		---		---		---		---		---		---		0.4		1.3

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		0.2		0.1		0.1		---		---		---		---		---		---		---		---		0.2

Avg. # of Days w/Snow Depth Above 1in/2.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		102.4		28.2		23.6		16.5		1.6		---		---		---		---		---		0.2		7.3		25

Avg. # of Days w/Snow Depth Above 3in/7.5cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		89.6		26.3		22.6		15.7		1.4		---		---		---		---		---		---		3.9		19.7

Avg. # of Days w/Snow Depth Above 5in/12.7cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		78.1		24.1		20.7		14.6		1.3		---		---		---		---		---		---		2		15.4

Avg. # of Days w/Snow Depth Above 10in/25cm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		53.6		17.3		17.5		10.5		0.9		---		---		---		---		---		---		0.7		6.7

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		7443		1158		970		868		609		394		200		79		96		305		653		925		1187

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		116		---		---		---		---		2		13		54		44		3		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1453		---		---		1		19		120		267		440		414		173		17		---		---

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		9.5		10.8		12.5		14.3		15.9		16.7		16.2		14.8		13		11.3		9.8		9

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.4		2.3		3.5		4.7		5.4		5.9		6.6		5.7		4.1		2.5		1.4		1.1

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.7		0.8		1.2		1.7		2.1		2.5		2.7		2.7		2.3		1.8		1.3		0.8		0.7

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.2		2.3		3.6		4.5		5		5		5.1		5.9		5.7		4.8		3.5		2.4		2.1

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		2.1		3.1		4		4.8		5		5.3		6.6		6.1		4.6		3.3		2.1		1.9

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.4		2.3		3.5		4.7		5.4		5.9		6.6		5.7		4.1		2.5		1.4		1.1

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.9		0.9		1.2		1.9		2.1		2.5		2.7		3.3		2.5		2.1		1.5		0.9		0.7

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.9		2.6		3.8		5.3		5.4		5.8		5.9		7.1		6.5		6.2		4.5		2.9		2.3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5		2.4		3.4		5		5.6		6.4		6.9		7.8		7		6.2		4.5		2.5		2

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.1		1.3		1.9		3.1		4.3		4.7		5.1		4.5		4.7		2.9		1.9		1.2		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.8		1.1		1.6		2.1		2.5		2.6		2.5		2.2		1.6		1		0.8		0.6

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.3		2.1		2.9		3.8		4.5		4.3		4.4		4		4.7		3.2		2.4		2		1.7

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.9		1.9		2.5		3.2		4.1		3.7		4		3.2		4.4		2.6		2.1		1.7		1.4

NEARBY - MAP

NEARBY - LIST

Clark Fork, Idaho (5 mi / 8 km)
Clark Fork - East, Idaho (11 mi / 18 km)
Lincoln County - Bull Lake, Montana (13 mi / 22 km)
Tuscor, Montana (20 mi / 33 km)
Trout Creek, Montana (21 mi / 35 km)

GEOBA.SE

Heron, Montana