RIVERVIEW STATE RECREATION AREA, NEBRASKA

Average Temperature

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		10.5		-5.3		-2.3		3.7		10.9		16.9		22		24.6		23.3		18.5		12.2		4.3		-2.7

Average High Temperature

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		16.7		0.3		3.5		10.1		17.7		23.3		28.3		30.7		29.6		25.3		19.2		10.2		2.5

Average Low Temperature

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		4.3		-10.8		-8.2		-2.6		4.1		10.4		15.7		18.4		17		11.7		5.3		-1.6		-8

Highest Recorded Temperature

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		42.2		21.7		25		31.7		32.8		36.7		41.1		42.2		41.1		38.9		33.9		28.3		21.7

Lowest Recorded Temperature

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-33.3		-33.3		-28.9		-24.4		-15.6		-2.8		4.4		6.1		6.7		-2.2		-10		-21.1		-30.6

Average Number of Days Above 90F/32C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		31.7		---		---		---		0.4		1.3		5.6		11.7		9.2		3.1		0.4		---		---

Average Number of Days Below 32F/0C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		139.8		30.2		26		21.5		7.1		0.4		---		---		---		0.1		5.3		19.9		29.3

Average Number of Days Below 0F/-17C

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		12.6		6.3		2.9		0.4		---		---		---		---		---		---		---		0.1		2.9

Average Precipitation

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		833		21		26		53		78		112		123		109		94		85		64		38		30

Average Number of Days With Precipitation

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		87		5		5		7		9		11		10		8		8		8		6		5		5

Most Reported Precipitation in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		577		85		129		200		214		306		330		577		350		257		249		130		110

Least Reported Precipitation in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		---		---		2		3		22		18		8		8		12		---		---		1

Most Precipitation Reported in a Day

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		171.4		35.3		91.7		57.1		102.1		105.7		104.7		171.4		125.5		114.3		125.7		63.5		47

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

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		57		3		3		4		6		7		7		6		6		5		4		3		3

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

Years on Record: 78

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

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

Years on Record: 78

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

Average Snowfall

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		59.2		18		16.3		7.1		2.3		---		---		---		---		---		0.2		2.5		12.7

Most Snow Reported in a Month

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		62.2		58.7		48.3		46		53.3		6.6		---		---		---		---		7.6		27.9		62.2

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3346.1		721.1		560.6		433.9		229.4		89.4		8.3		---		6.1		41.7		186.7		423.9		645

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		604.4		---		---		---		3.3		41.1		126.7		198.9		169.4		62.2		2.8		---		---

Growing Degree Days

Years on Record: 78

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1787		---		---		---		26.7		213.6		360		451.2		411.6		255		68.9		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10.2		11.2		12.5		13.8		15		15.6		15.3		14.2		12.9		11.5		10.4		9.8

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		7		9.4		13.2		16.6		19.8		22.5		22.5		19.6		16.3		11.5		7.5		6

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.6		3.7		5.3		7		8.2		8.5		8		7.1		5.4		4		2.9		2.3

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.2		12.3		13.5		15.9		17		18.1		19.6		20		19.1		18.7		16		12.3		11.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		16.8		12.6		13.4		15.5		16.2		18.3		21.6		22.5		20.3		19.9		16.4		12.7		11.6

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.3		7		9.4		13.2		16.6		19.8		22.5		22.5		19.6		16.3		11.5		7.5		6

Maximum 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		3.9		5.5		7.2		8.5		9.1		8.8		7.6		6.1		4.4		3.1		2.5

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.4		14.5		17		20.6		20.6		20.6		22.2		21.9		21.4		21.6		20.1		17.2		14.8

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		22.1		15.9		18.1		22.9		22.6		23.1		27.9		26.9		24.6		24.8		22.4		19.8		16.5

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.2		6		7.6		9.9		13.2		14		18.3		17.2		16.3		12.3		9.1		5.1		4.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.9		2.5		3.4		4.5		6.4		7.7		7.6		7.4		6.5		4.8		3.5		2.4		2

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		10.1		9.8		11.1		13.2		12.8		16.1		15.4		15.8		13.3		11.7		7		8.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.3		9.5		8.7		8.7		10.2		9		14.2		13.1		14.2		11.3		10.4		5.9		7.8