OSTROV, RUSSIA

Average Temperature

Years on Record: 85

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-11		-22.9		-24.7		-23.2		-17		-6.7		0.6		2.6		2.3		-0.7		-7.1		-14.2		-20.7

Average High Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-7.6		-19.4		-20.1		-18.7		-12.9		-3.1		3.3		5.7		4.8		1.5		-4.2		-10.6		-17.1

Average Low Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-13		-26.2		-26.8		-25.9		-20.4		-8.2		-0.9		1.1		0.7		-1.9		-8.6		-15.9		-23

Highest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		18.2		1.5		-0.2		0.2		2.5		9.6		15.9		18.2		16.7		11.9		5.3		1.8		2

Lowest Recorded Temperature

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-57.7		-42		-44.6		-45		-38.2		-31.5		-12.3		-4.9		-6.5		-21.4		-29.8		-34.9		-57.7

Average Precipitation

Years on Record: 45

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		154.3		9.8		8.4		8.1		6.9		7.8		11.6		21.4		26.2		18.1		13.8		13.6		8.7

Average Number of Days With Sleet

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14		0.1		0.2		---		0.1		2		4		1		2		2		1		1		0.2

Most Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		359		46		84		75		29		28		52		76		70		50		100		75		53

Least Reported Precipitation in a Month

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		51		0.2		---		0.4		---		0.4		---		0.3		---		4		---		0.2		0.7

Most Precipitation Reported in a Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		35		13		35		32		13		11		31		22		27		23		19		17		29

Average Number of Rainy Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56		0.1		0.2		---		0.4		3		9		13		16		11		2		1		0.2

Average No. of Days With Freezing Rain

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		16		2		3		2		2		2		0.2		---		0.2		1		1		2		1

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		145		12		13		11		14		16		8		3		5		14		20		16		13

Average Snow Cover

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		---		6		7		7		7		6		1		---		---		---		2		5		5

Deepest Snow Cover Reported

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		42		40		36		37		34		36		25		---		2		10		23		42		23

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		125		18		18		14		13		7		1		0.1		0.3		2		13		19		20

Av. # of Days w/Snow Depth Above 0.4in/10mm

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		207		27		26		30		28		22		3		---		0.1		2		19		26		26

Average Relative Humidity

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		83		79		80		80		81		86		86		88		89		86		81		79		79

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11380.9		1275.3		1180.2		1259.8		1049.2		744		514.2		462.4		483.1		555.8		767.3		947.5		1190.1

Average Station Pressure

Years on Record: 71

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		1006.1		1019.4		1021.4		1021.3		1018.2		1016.8		1012.7		1011		1010.7		1012.8		1012.1		1014.8		902.5

Average Vapor Pressure

Years on Record: 74

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mbar		3.1		1		0.8		0.9		1.5		3.4		5.6		6.6		6.6		5.2		3.2		2		1.1

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		13.5		---		8.4		13		21		24		24		24		22		14.4		9.7		1.3		---

Average Monthly Sunshine

Years on Record: 50

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		1412.7		0.8		56		190.8		262.7		185.8		241.4		225.8		123.5		74.6		46		5.2		---

Average Number of Days With Fog

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		52		1		1		1		1		5		9		12		12		6		2		1		1

Average Number of Clear Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		27		6		4		5		3		1		1		1		---		---		---		2		4

Average Number of Cloudy Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		170		8		7		7		10		20		17		18		22		21		18		14		8

Average Number of Partly Cloudy Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		168		17		17		19		17		10		12		12		9		9		13		14		19

Average Number of Days With Smoke/Haze

Years on Record: 30

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

Average Wind Speed

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
km/h		17.6		20.5		19.1		14.8		15.8		16.2		16.2		13.7		15.1		16.6		20.9		24.8		22.3

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.3		---		0.8		4.4		11.9		18.3		22.7		20.1		13.3		6.7		1.8		0.1		---

Average Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.7		---		0.6		3		6.5		9.9		12.5		11.4		6.9		4		1.3		---		---

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		9.4		---		2.7		8		16.5		19.3		19.4		17.5		14.5		10.7		4.5		---		---

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.6		---		2.3		7		17		25.7		27.5		25.3		18.6		11		4.1		---		---

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		8.3		---		0.8		4.4		11.9		18.3		22.7		20.1		13.3		6.7		1.8		0.1		---

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		0.8		3.4		7.1		10.2		12.8		11.8		7		4.2		1.5		---		---

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		4.4		12		21.5		23.1		23.2		19.7		16.9		13.5		5.9		---		---

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		3.9		11.5		24.4		33.8		36.8		31		23.5		14		5.5		---		---

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		0.6		3.5		9.1		16		20.4		17.4		10.8		5.7		1.5		---		---

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		0.5		2.7		6.2		9.4		12.1		10.8		6.7		3.7		1.1		---		---

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		1.4		5.4		11.4		16.3		17.4		14.9		11.1		8.2		3.4		---		---

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		---		---		1.1		4		8.9		20		22.5		19.4		12.1		7.8		2.8		---		---