VITERBO, ITALY

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Elevation: 348 meters Latitude: 42 25N Longitude: 012 07E

WEATHER

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Climate Summary

CURRENT CONDITIONS

Sunrise/Set

12:00 am

02:15 pm
Local Time
7:28 pm EDT
5 May, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		13.1		5.1		6.4		8.2		10.8		14.8		18.7		21.9		22.1		19.1		14.5		9.4		6.2

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.8		9.5		11		13.6		16.5		21.1		25.4		29.1		29		25.3		19.9		14.2		10.4

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		7.5		0.7		1.8		2.9		5.1		8.5		12		14.6		15.1		12.8		9.1		4.7		2.1

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		96.4		---		---		---		0.1		4.2		17.1		27.7		27.3		17.6		2.4		---		---

Average Number of Days Below 32F/0C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44.2		13.7		9		5.9		1.9		0.1		---		---		---		---		0.1		3.4		10.1

PRECIPITATION

Average Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		728.1		57		60.2		49.3		61		54.9		57		28.5		54		57.9		86.7		92.9		68.7

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		76.6		7.6		7.9		6.9		7.9		6		5.1		3		4.5		4.7		6.6		8.2		8.2

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		249.1		112.7		144.6		105.2		153.2		142.4		249.1		113.8		166.3		162.4		231		219.5		125.8

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		---		1.9		1		1.5		---		---		2.8		---		0.8		0.9		6.6		2.2		17.8

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

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24.3		1.8		1.9		1.5		1.8		1.7		2		1.1		1.7		2.1		3.1		3.2		2.4

HUMIDITY

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		68.8		74		71		68		69		69		66		61		62		65		71		75		75

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2454		409.9		337.4		312.6		225.8		109.4		---		---		---		---		118.8		265.8		374.6

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		256.4		---		---		---		---		---		10.8		109.4		115.4		20.8		---		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1585.7		---		---		---		24.2		149		260.8		367.7		373.7		270.8		139.5		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.7		10		11.1		12.4		13.9		15.2		15.8		15.5		14.3		12.9		11.5		10.3		9.7

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		14.7		6.5		9.8		13.9		16.6		20.9		23.5		24.9		21.6		16.1		10.5		6.6		5.3

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.2		2.5		3.5		5		7		8		8.2		7.3		6.4		5.4		4.1		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		16.4		11.5		14.3		17.1		17.1		19.2		20.4		22.1		21.4		18.6		14.5		10.7		9.8

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		11.9		15.3		17.5		16.5		20.7		23.8		27.6		25		19.8		14.4		10.7		10

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.7		6.5		9.8		13.9		16.6		20.9		23.5		24.9		21.6		16.1		10.5		6.6		5.3

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.6		2.7		3.8		5.4		7.2		8.5		8.9		8.2		7.4		5.8		4.3		3		2.3

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		19.9		14.4		20.4		21.7		19.9		22.1		21.9		23.9		24		22.1		19.6		12.8		15.7

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		23.6		15.9		24.6		24.9		21.7		26.8		27.5		32.1		30.6		25.9		21.7		13.6		17.9

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.1		5.1		6.9		11.2		13.6		16.7		20.3		21.9		17.9		14.6		8.3		5.3		3.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.6		2.3		2.6		4.1		6.4		7.2		7.7		6.5		5.4		4.5		3.4		2.8		1.8

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.9		8.1		8.9		13.1		13.7		15.3		17.7		19.5		17.5		16.5		10.7		7.6		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		12.1		7.5		7.7		11.5		11		13		17.8		21.5		17.2		16.3		9.2		6.7		5.5

NEARBY - MAP

NEARBY - LIST

Bracciano, Italy (24 mi / 38 km)
Vigna di Valle, Italy (24 mi / 38 km)
Civitavecchia, Italy (30 mi / 48 km)
Maccarese, Italy (36 mi / 58 km)
Radicofani, Italy (37 mi / 59 km)

GEOBA.SE

Viterbo, Italy