SOUTH MOUNTAIN, ONTARIO

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Elevation: 85 meters Latitude: 44 58N Longitude: 75 29W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

05:30 am

08:25 pm
Local Time
4:55 pm EDT
16 May, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °F ] °C

TEMPERATURE

Average Temperature

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		6.3		-10.1		-8		-2.3		6.3		13.1		18.1		20.9		19.3		14.4		8.3		1.7		-6

Average High Temperature

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		11.4		-5.2		-3.2		2.5		11.4		18.8		23.8		26.8		25.1		19.9		13.2		5.6		-1.8

Average Low Temperature

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		1.2		-14.9		-12.8		-7.1		1.3		7.4		12.3		14.9		13.5		8.7		3.4		-2.3		-10.1

Highest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		37.2		16		14.5		25.6		31		33.3		35		36		37.2		32.5		27.8		22.8		16

Lowest Recorded Temperature

Years on Record: 35

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
C		-37		-37		-36.7		-27.5		-14.5		-6.1		---		3.5		0.6		-5		-8.3		-23		-34

Average Number of Days Above 95F/35C

Years on Record: 16

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

Average Number of Days Above 90F/32C

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.7		---		---		---		---		0.6		1.6		4.5		2.6		0.4		---		---		---

Average Number of Days Above 86F/30C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9.9		---		---		---		0.1		0.2		2.1		4.7		2.5		0.3		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		114.6		---		---		0.1		3.1		12.3		24		29.9		27.5		14.4		3.1		0.1		---

Average Number of Days Above 50F/10C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		198.7		0.4		0.4		3.3		15.5		29.3		30		31		31		29.3		21.6		5.9		0.9

Average Number of Days Above 32F/0C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		290.8		8.9		9.3		20.8		29.3		31		30		31		31		30		31		24.7		13.8

Average Number of Days Below 35F/2C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		183.5		30.9		27.5		29.7		18.6		4.3		0.1		---		0.1		3.2		13.9		25.1		30.1

Average Number of Days Below 32F/0C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		157.3		30		26.4		26.4		13.3		1.7		---		---		---		1.5		9.1		20.2		28.7

Average Number of Days Below 28F/-2C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		123.8		28.2		24.4		21.6		6.4		0.1		---		---		---		0.3		4		13.6		25.2

Average Number of Days Below 10F/-12C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		64.2		21.1		17.8		9.4		0.3		---		---		---		---		---		---		2.3		13.3

Average Number of Days Below -4F/-20C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		20.2		8.6		5.1		2.1		---		---		---		---		---		---		---		0.1		4.3

Average Number of Days Below -22F/-30C

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1.7		1.1		0.3		---		---		---		---		---		---		---		---		---		0.3

PRECIPITATION

Average Precipitation

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		948.3		72.1		64		59.5		81.8		81.9		74.3		87.8		97.6		81.7		82.3		87.6		78

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		168.1		17.6		13.8		14.1		13.4		13.6		12.9		11.7		12		12.8		13.5		15.4		17.3

Most Precipitation Reported in a Day

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		146		51.6		40.6		37		50.2		48.3		56.2		88		146		68.4		66.4		61.6		50.8

Avg. No. of Days w/Precip. Above 0.1in/2.5mm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		171.6		17.5		13.7		13.6		14.5		14.5		13.3		11.9		12.7		13.1		14.1		16.1		16.6

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		59.5		4.6		4.1		4.3		5.4		5.2		5		4.7		5.3		4.3		5.4		5.5		5.7

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		29.7		1.9		2.1		1.4		2.8		2.8		2.8		2.9		3.1		2.8		2.3		2.5		2.2

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.1		0.3		0.2		0.2		0.4		0.5		0.3		0.6		0.7		0.7		0.6		0.5		0.1

PRECIPITATION - RAIN

Average Rainfall

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		752		25.6		21.6		29.6		71		81.2		74.3		87.8		97.6		81.7		79.3		68.2		34

Average Number of Rainy Days

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		126.7		4.7		4.1		7.8		12.4		14.4		13.3		11.9		12.7		13.1		13.9		12.6		5.7

Most Rain Reported in a Day

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mm		146		51.1		33.8		34		50.2		48.3		56.2		88		146		68.4		66.4		61.6		48.3

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		45.6		1.4		1.4		1.8		4.6		5.1		5		4.7		5.3		4.3		5.1		4.4		2.3

Avg. No. of Days w/Rain Above 0.4in/10mm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		24.1		0.8		0.8		0.7		2.4		2.8		2.8		2.9		3.1		2.8		2.3		1.7		1.1

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.6		0.3		0.1		0.1		0.4		0.5		0.3		0.6		0.7		0.7		0.5		0.4		0.1

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		196.4		46.5		42.3		29.8		10.7		0.6		---		---		---		---		3		19.4		44

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		58.6		15		11.8		8.5		3.2		0.2		---		---		---		---		0.8		5.6		13.6

Average Snow Cover

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		4.8		15.8		18.8		11.9		0.9		---		---		---		---		---		0.1		1.8		8.7

Average Snow Cover at Month End

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		4.3		16.8		17.3		2.1		---		---		---		---		---		---		0.1		2.8		12.7

Deepest Snow Cover Reported

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		60		58		60		60		18		---		---		---		---		---		12		27		43

Most Snow Reported in a Day

Years on Record: 36

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
cm		43.2		43.2		40.6		37		22.9		15.7		---		---		---		---		18		29		31

Avg. No. of Days w/Snow Above 1in/2.5cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.5		14.5		11.4		7.8		3.4		0.1		---		---		---		---		0.7		5.7		12.9

Avg. No. of Days w/Snowfall Above 2in/5cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		13.3		3.1		2.6		2.1		0.8		0.1		---		---		---		---		0.2		1.3		3.2

Avg. No. of Days w/Snow Above 3.9in/10cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.5		1		1.2		0.6		0.3		---		---		---		---		---		0.1		0.3		1

Avg. No. of Days w/Snowfall Above 10in/25cm

Years on Record: 16

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

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

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		106.6		27.8		25.4		20.4		4.4		---		---		---		---		---		0.5		6.6		21.4

Avg. # of Days w/Snow Depth Above 2in/5cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		85.2		24.1		21.1		16.5		2.6		---		---		---		---		---		0.2		3.6		17.1

Av. # of Days w/Snow Depth Above 3.9in/10cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		60.7		17.1		16.6		13.3		1		---		---		---		---		---		---		2.1		10.6

Av. # of Days w/Snow Depth Above 7.8in/20cm

Years on Record: 16

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		35.1		10.8		11.1		8.1		---		---		---		---		---		---		---		0.8		4.3

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2527.2		484.7		419.4		349.6		202.5		89.3		24.9		5.8		14.4		70.1		171.4		273.2		421.9

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		131.7		---		---		---		0.6		6.4		24.1		53.2		38.4		8.6		0.4		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		1093.4		---		---		---		---		99.9		240		334.1		291.1		128.3		---		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		9.8		11		12.5		14.1		15.5		16.2		15.8		14.5		13		11.4		10.1		9.4

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		12.8		5.8		9.2		13.3		16.3		18.6		20.3		20.3		17.7		13.5		8.7		5.4		4.7

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		2.2		3.1		4.7		6.6		8.2		8.8		8.3		7.1		5.5		3.8		2.6		1.9

Average Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		14.9		11.9		15.4		17.9		17.1		17.1		17.7		18.1		17.5		15.6		12.2		9.1		9.3

Average Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		15.2		12.1		16.1		18		17.2		17.1		18.5		19.3		18		15.4		11.7		8.9		10.2

Maximum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		12.8		5.8		9.2		13.3		16.3		18.6		20.3		20.3		17.7		13.5		8.7		5.4		4.7

Maximum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		5.4		2.3		3.4		5		7		8.4		9		8.6		7.4		5.7		4		2.6		2

Maximum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		17.8		14.6		17.4		22.6		21.4		20.2		20.6		20.3		20		18.2		15.2		10.9		12.5

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		20		15.6		18.9		24.8		25		23.3		24.9		24.1		22.8		19.6		15.7		11.1		14.6

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.7		5.2		7.4		11.8		12.9		15.1		17.2		18.3		14.6		11.2		6.4		4.4		3.6

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		4.8		2		2.9		3.9		5.8		7.6		8.1		7.8		6.6		5.2		3.7		2.5		1.7

Minimum Daily Solar Radiation - Reflected

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		11.8		10		11.2		15.2		13		13.8		15		16.3		14.2		12.3		7.9		6.9		6.4

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Mj/m2		10.5		9.7		10.4		14.3		10.6		11		13.1		15.6		12.2		10.6		6.3		6.1		6.1

NEARBY - MAP

NEARBY - LIST

Kemptville, Ontario (7 mi / 12 km)
Elma, Ontario (14 mi / 22 km)
Morrisburg, Ontario (15 mi / 24 km)
Lisbon, New York (17 mi / 28 km)
Ogdensburg, New York (20 mi / 33 km)

GEOBA.SE

South Mountain, Ontario