PORT OF MORGAN, MONTANA

Average Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		41.6		12.7		18.7		29.6		44.2		53.9		62.1		68.2		67.2		56.9		43.7		27.6		14.9

Average High Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		54.5		22.9		29.1		41		58.1		68		76		83.3		82.6		72		57.3		38.1		25

Average Low Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		28.9		3.3		8.3		18.5		30.5		39.8		48.2		53.2		51		41.8		30.3		17.1		5.3

Highest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		103		60		67		73		89		97		101		102		103		98		88		76		61

Lowest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-42		-40		-39		-33		-4		14		29		36		31		18		-14		-32		-42

Average Number of Days Above 100F/38C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.6		---		---		---		---		---		---		0.3		0.3		---		---		---		---

Average Number of Days Above 90F/32C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		17.1		---		---		---		---		0.2		2.1		6.8		6.7		1.4		---		---		---

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		61.5		---		---		---		0.7		4		8.5		20.4		20.7		6.4		0.8		---		---

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		116.3		---		---		0.2		4.4		11.8		21		29		28.1		16.5		5		0.2		---

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		170.2		---		0.2		2.2		13		24.3		28.9		30.9		30.8		25		13.3		1.7		---

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		212.8		0.4		1.5		9.2		22.6		29.2		29.9		31		30.9		28.9		22.7		6		0.6

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		256.6		3.7		7.2		17.4		27.9		30.5		30		31		31		29.8		28.3		15.3		4.5

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		364.6		31		28		31		30		31		30		30.8		30.9		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		354.7		31		28		31		30		30.8		28.5		26		27.5		29.9		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		304.1		31		28		31		29.8		28.4		18.3		9.3		10.4		26.2		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		235.4		31		28		30.6		26.8		15.7		3.4		0.2		1.2		11.5		26.8		29.3		31

Average Number of Days Below 32F/0C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		184.1		29.6		27		27.4		17		5.5		0.3		---		---		3.3		17.2		26.9		29.7

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		104.8		25.7		20.4		13		3.2		0.1		---		---		---		0.1		2.9		14.6		24.8

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		60.9		17.2		12.8		5.8		0.5		---		---		---		---		---		0.7		6.8		17.1

Average Number of Days Below 0F/-17C

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		38.6		12.1		8		3.1		0.1		---		---		---		---		---		0.3		3.7		11.3

Average Precipitation

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		11		0.2		0.2		0.2		0.6		1.8		2.7		1.9		1.1		1.2		0.5		0.4		0.2

Average Number of Days With Precipitation

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		54		2		2		2		4		8		10		7		5		5		3		3		3

Most Reported Precipitation in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		8.2		0.8		2		0.5		1.8		5.7		8.2		6.3		3.5		4.3		1.6		1.4		1.7

Least Reported Precipitation in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		---		---		---		---		---		0.1		0.4		0.1		---		---		---		---		---

Most Precipitation Reported in a Day

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		3		0.5		0.2		0.4		0.7		1.5		2		3		1.1		1.4		1		0.9		0.8

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		28.4		0.8		0.2		0.7		1.9		4.7		6.4		4.1		3.5		2.7		1.7		1.2		0.5

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

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		1		---		1		2		5		6		4		4		3		2		1		1

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

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5		---		---		---		---		1		2		1		---		1		---		---		---

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		5.8		---		---		---		0.2		1.1		1.7		1.2		0.5		0.8		0.2		0.1		---

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

Years on Record: 35

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

Average Snowfall

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		17.2		3.4		1.4		2.4		1.2		1.1		---		---		---		0.2		1.1		2.9		3.5

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.2		2.3		1.6		1.2		0.5		0.3		---		---		---		---		0.3		1.2		1.8

Most Snow Reported in a Month

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		19.5		13.6		7.6		16		13		13		---		---		---		6		12		12		19.5

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		6.2		1.5		0.6		1		0.3		0.3		---		---		---		---		0.3		0.8		1.4

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		1.6		0.3		0.1		0.4		0.1		0.1		---		---		---		---		0.2		0.3		0.1

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		0.5		---		---		0.2		---		0.1		---		---		---		---		---		0.2		---

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		8711		1575		1284		1068		628		363		148		37		55		281		650		1096		1527

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		370		---		---		---		1		9		49		147		142		21		1		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1977		---		---		3		42		170		355		575		553		228		49		3		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.9		9.4		10.8		12.5		14.4		16		16.8		16.4		14.9		13.1		11.3		9.7		8.9

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.2		2.1		3.3		4.8		5.7		6		6.4		5.3		3.9		2.5		1.4		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		0.7		1.1		1.7		2.1		2.5		2.7		2.6		2.2		1.8		1.3		0.8		0.6

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.1		2.1		3.3		4.3		5.1		5.2		5.2		5.7		5.3		4.5		3.5		2.5		2

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		1.9		2.9		3.7		5.1		5.4		5.6		6.4		5.6		4.3		3.3		2.2		1.7

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.6		1.2		2.1		3.3		4.8		5.7		6		6.4		5.3		3.9		2.5		1.4		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		1.8		0.8		1.2		1.8		2.1		2.5		2.7		2.7		2.3		1.9		1.3		1		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		4.6		2.6		3.8		5		5.6		5.9		5.9		6.3		6.1		5.5		3.8		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		4.8		2.4		3.3		4.7		5.9		6.7		6.9		7.4		6.6		5.5		3.6		2.7		2.1

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		1.8		3		4.1		4.6		5.1		5.3		4.6		2.9		2.3		1.1		0.8

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		0.6		1		1.6		2.1		2.5		2.6		2.5		2.2		1.6		1.2		0.7		0.5

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		1.6		2.7		3.7		4.2		4.2		4.5		4.7		4.5		3.2		3.1		1.8		1.4

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		1.4		2.3		3.1		3.7		3.5		4		4.6		4.2		2.7		2.9		1.5		1.2