PLEVEN, BULGARIA

Average Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		53		31		34		44		54		63		69		73		72		66		54		41		35

Average High Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		62		36		40		52		63		73		79		83		82		77		64		47		40

Average Low Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44		25		27		36		44		53		59		62		61		55		44		35		29

Highest Recorded Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		108		63		73		81		88		93		100		108		100		99		91		79		68

Lowest Recorded Temperature

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-12		-12		---		7		27		32		44		52		45		30		21		10		1

Average Number of Days Above 90F/32C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		---		---		---		---		---		2		7		6		1		---		---		---

Average Number of Days Above 65F/18C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		178		---		1		6		14		25		28		31		30		27		14		2		---

Average Number of Days Below 32F/0C

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		93		26		21		11		1		---		---		---		---		---		2		12		21

Average Number of Days Below 5F/-15C

Years on Record: 19

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

Average Precipitation

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		21.5		1.6		1.4		1.7		1.8		2.2		2.7		2.2		1.3		1.3		1.4		1.9		1.7

Average Number of Days With Thunderstorms

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		30		---		---		---		1		7		9		7		4		2		---		---		---

Most Rain Reported in a Month

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		29.8		4.5		3		6.2		3.5		5.4		5.4		5.9		4.7		5.4		4.6		4.2		3.7

Least Recorded Rainfall

Years on Record: 40

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in.		15.6		0.4		0.2		0.4		---		0.4		1		---		0.1		0.1		---		---		0.2

Average Morning Relative Humidity

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		88		89		89		86		86		88		88		86		85		86		89		90		90

Average Evening Relative Humidity

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		61		78		73		61		54		53		51		46		47		49		59		76		81

Average Dew Point

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		44		26		28		35		43		52		57		59		59		54		45		36		30

Heating Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5023.9		1069.5		889.9		651		345		62		---		---		---		---		341		720		945.5

Cooling Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		584		---		---		---		---		---		120		232.5		201.5		30		---		---		---

Growing Degree Days

Years on Record: 19

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3046		---		---		---		105		403		570		697.5		666.5		480		124		---		---

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.9		11		12.5		14		15.3		16		15.6		14.4		13		11.5		10.2		9.6

Average Number of Days With Fog

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		303		27		25		26		22		24		23		25		25		24		28		27		27

Average Wind Speed

Years on Record: 17

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		11		11		11		12		12		10		10		10		9		10		10		11		10

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.6		2.4		3.4		4.5		5.6		6.2		6.2		5.7		4.2		2.8		1.6		1.3

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.5		0.7		1		1.4		1.9		2.2		2.4		2.2		1.9		1.5		1.1		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		4.2		2.8		3.5		4.2		4.7		5.1		5.4		5.6		5.6		4.9		3.8		2.6		2.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		4.4		2.8		3.5		4		4.5		5.3		6		6.4		6.3		5.1		3.8		2.5		2.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.8		1.6		2.4		3.4		4.5		5.6		6.2		6.2		5.7		4.2		2.8		1.6		1.3

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.6		0.7		1		1.5		2		2.3		2.5		2.4		2.1		1.6		1.2		0.8		0.6

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.1		3.9		4.4		5.4		5.5		6.2		5.9		6.2		6.5		5.9		4.7		3.4		3.2

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.9		4.3		4.8		6		6.1		7.6		7.2		7.8		8.2		6.8		5		3.5		3.3

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		1.1		2		2.7		3.8		4.9		5.3		5.6		4.6		3.1		2.2		1.3		1

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.3		0.6		0.9		1.3		1.8		2		2.2		2		1.6		1.3		1		0.7		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		1.7		2.8		3.1		3.8		4.5		4.7		5		4.5		3.4		2.8		1.8		1.6

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3		1.5		2.5		2.4		3.1		4.1		4.4		5.2		4.2		2.8		2.4		1.5		1.4