ST. CATHARINES AIRPORT, ONTARIO

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Elevation: 321 feet Latitude: 43 12N Longitude: 79 10W

WEATHER

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CURRENT CONDITIONS

Sunrise/Set

06:13 am

08:15 pm
Local Time
3:00 pm EDT
28 April, 2024

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MONTHLY - ALL WEATHER AVERAGES [ Show Summary ]

[ °C ] °F

TEMPERATURE

Average Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		48.2		25.1		26.8		34		45.2		56.6		66.1		71.4		69.4		61.9		50.6		40.3		30.5

Average High Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		56.4		31.5		33.7		41.9		54.4		67		76		80.9		78.5		70.9		59.1		47.1		36.5

Average Low Temperature

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		39.8		18.7		19.9		26.1		36		46.2		56.2		61.8		60.2		52.9		42.1		33.5		24.4

Highest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		99.3		65.3		66.9		80.1		86.5		90.3		95		99.3		96.1		91.9		84		72		71.4

Lowest Recorded Temperature

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-14.3		-10.8		-14.3		-6		15.6		28.9		35.1		46.4		36.7		32.7		23		12.9		-8.5

Average Number of Days Above 95F/35C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.4		---		---		---		---		---		---		0.4		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		13.7		---		---		---		---		0.6		2.5		6.6		3.3		0.7		---		---		---

Average Number of Days Above 86F/30C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		14.4		---		---		---		0.1		0.5		3		7.1		3.3		0.6		---		---		---

Average Number of Days Above 70F/21C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		127.5		---		---		0.9		3		13.5		25.5		30.3		29.8		18.4		5.4		0.7		0.1

Average Number of Days Above 50F/10C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		219.5		1.4		1.8		6.8		18.6		30		30		31		31		30		26		10.3		2.8

Average Number of Days Above 32F/0C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		319.3		14.9		15.7		24.6		29.8		31		30		31		31		30		31		28.9		21.6

Average Number of Days Below 35F/2C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		156.4		29.8		26.9		27.2		15.4		2.2		---		---		---		0.2		6.8		19.6		28.4

Average Number of Days Below 32F/0C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		127.2		27.8		24.8		23.1		9.4		0.1		---		---		---		---		2.9		14.1		25.1

Average Number of Days Below 28F/-2C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		93.6		24.6		21.6		18		3.2		---		---		---		---		---		0.6		7		18.8

Average Number of Days Below 10F/-12C

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		26.7		10.5		8.3		3.5		---		---		---		---		---		---		---		0.1		4.5

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		0.9		0.7		0.1		0.1		---		---		---		---		---		---		---		---		0.1

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

Years on Record: 20

ANNUAL

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

OCT

NOV

DEC

Days

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TEMPERATURE - WIND CHILL

Lowest Reported Wind Chill

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		-43.7		-43.7		-30.2		-19		-3.4		26.7		32		32		32		32		17.1		-2		-18.3

TEMPERATURE - HUMIDEX

Highest Reported Humidex

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
F		120.8		69.5		68.4		84.7		94.1		110.3		112.1		115.1		120.8		107.6		102.2		80.8		77.1

PRECIPITATION

Average Precipitation

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		34.6		2.6		2.2		2.4		3		3		3.4		3.1		2.8		3.6		2.6		3.2		2.8

Average Number of Days With Precipitation

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		151		16.6		14		13.5		13.6		11.5		10.8		9.2		9.8		10.9		12		13.8		15.4

Most Precipitation Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2.6		1.6		1.6		1.7		1.9		1.7		2.6		2.6		2		2.6		2		1.9		1.4

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		150.7		16.5		13.4		13.3		13.9		11.5		10.9		9.8		9.7		10.9		11.8		14.1		15.2

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		55.7		4.4		3.4		4.1		5.2		5		5.1		4.5		4.2		5.5		4.3		5.3		5

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		28.2		1.5		1.6		1.8		2.8		2.8		2.9		2.7		2.3		3		2.5		2.7		2.1

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		5.2		0.3		0.2		0.3		0.4		0.5		0.8		0.6		0.5		0.7		0.3		0.5		0.3

PRECIPITATION - RAIN

Average Rainfall

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		29.7		1.2		1.1		1.5		2.8		3		3.4		3.1		2.8		3.6		2.6		2.8		1.7

Average Number of Rainy Days

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		117		5.8		5.8		8.4		12.4		11.5		11		9.8		9.7		10.9		11.8		12.1		8.1

Most Rain Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		2.6		1.6		1.6		1.4		1.9		1.7		2.6		2.6		2		2.6		2		1.9		1.4

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		47.2		2		1.8		2.6		4.9		5		5.1		4.5		4.2		5.5		4.3		4.5		3.1

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		25.2		0.8		0.9		1.2		2.7		2.8		2.9		2.7		2.3		3		2.5		2.3		1.4

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		4.6		0.2		0.1		0.2		0.3		0.4		0.8		0.6		0.5		0.7		0.3		0.5		0.2

PRECIPITATION - SNOW

Average Snowfall

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		54		15.2		11.5		9.1		2.3		0.2		---		---		---		---		---		3.8		11.9

Average Number of Days With Snow

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		44.6		12.6		10.1		6.3		2.5		---		---		---		---		---		0.1		3.2		9.8

Average Snow Cover

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.5		2.2		1.5		0.9		0.1		---		---		---		---		---		---		0.2		0.8

Average Snow Cover at Month End

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		0.4		1.3		1.9		0.2		---		---		---		---		---		---		---		0.2		1.3

Deepest Snow Cover Reported

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		24.8		24.8		19.7		17.7		8.3		2		---		0.4		---		---		---		9.4		9.1

Most Snow Reported in a Day

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
in		18.4		11.8		18.4		10.2		8		3.1		---		---		---		---		0.6		7.5		7.9

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		42.7		12.3		9.1		6.5		2.4		0.1		---		---		---		---		0.1		3		9.4

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		9		2.8		2		1.4		0.3		0.1		---		---		---		---		---		0.6		2

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.1		0.8		0.7		0.6		0.1		---		---		---		---		---		---		0.3		0.7

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

Years on Record: 20

		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: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		56.1		18.7		14.5		8.6		1.2		0.1		---		0.1		---		---		---		2.1		11

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		33.1		13.2		8.1		4.8		0.3		0.1		---		---		---		---		---		1		5.7

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		15.5		6.2		4.4		2.6		0.2		---		---		---		---		---		---		0.4		1.8

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

Years on Record: 20

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3.4		1.7		1		0.5		0.1		---		---		---		---		---		---		0.1		0.2

HUMIDITY

Average Morning Relative Humidity

Years on Record: 14

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		83.6		81.7		79.4		81.4		80.7		83.3		84.5		86.2		88.9		88.2		85.2		81.8		82

Average Evening Relative Humidity

Years on Record: 29

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
%		63.1		73		67.7		62.9		57.6		55.9		58.1		57.5		59		60.5		64.5		69.1		71.9

DEGREE DAYS

Heating Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		3659.4		689.1		609.4		524.1		326.9		151.5		35.8		3.8		9.7		75.4		241.5		401.6		590.6

Cooling Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		330.8		---		---		0.2		1.3		15.5		60.1		121.4		97		33.1		2.2		---		---

Growing Degree Days

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2306.6		---		---		---		---		201.5		474		657.2		601.4		357		15.5		---		---

SKY CONDITIONS

Average Length of Day

Years on Record: 30

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		12.8		10		11.1		12.5		14		15.3		15.9		15.6		14.4		12.9		11.5		10.2		9.6

Average Monthly Sunshine

Years on Record: 6

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		2023.4		64.5		106.8		140.5		166.5		242.3		279.9		277.6		255.3		185		155.2		80.5		69.3

Average Number of Days with Sun

Years on Record: 6

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		300.5		18.5		20.8		23.7		26.4		28.8		28.3		29.7		30.2		28.3		27		20.8		18

Most Sunshine Reported in a Day

Years on Record: 7

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Hours		14.6		9.1		10.2		10.2		13		14.5		14.6		14.5		13.7		12.4		10.5		9.1		8.5

WIND

Average Wind Speed

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		9.8		12.5		11.6		11.2		10.6		9		8.4		7.8		7.4		8		9.1		11		11.3

Highest Reported Hourly Wind Speed

Years on Record: 39

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		55.3		55.3		39.1		46		46		40.4		40.4		39.1		36.7		32.9		39.1		43.5		43.5

Highest Reported Wind Gust

Years on Record: 24

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
mph		85.1		85.1		54.1		69		85.1		59.7		71.5		66.5		63.4		82.6		58.4		69		65.9

Avg. # of Days w/Wind Above 32 mph/52 km/h

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		11.7		2.3		1.1		2.3		1		0.9		0.3		0.1		0.3		0.3		0.9		0.9		1.4

Avg. # of Days w/Wind Above 39 mph/63 km/h

Years on Record: 12

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
Days		2.2		0.4		0.2		0.5		0.3		0.2		0.1		---		---		---		0.2		0.1		0.3

Average Primary Wind Direction

Years on Record: 15

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
°		225		225		225		225		225		225		225		225		225		225		225		225		225

SOLAR RADIATION

Average Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		3.7		1.4		2.2		3.3		4.6		5.5		6		6		5.2		4.1		2.7		1.6		1.2

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		2.3		2.4		2.3		2		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		2.4		3.3		4		4.7		5.1		5.3		5.4		5.1		4.7		3.7		2.5		2.1

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		2.2		3.1		3.7		4.6		5.2		5.7		6		5.4		4.7		3.5		2.4		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		3.7		1.4		2.2		3.3		4.6		5.5		6		6		5.2		4.1		2.7		1.6		1.2

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		2.4		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		4.9		3		4.1		5.1		5.4		6.1		6		6.1		5.9		5.7		4.3		3.4		3

Maximum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		5.5		3		4.2		5.4		5.8		7.4		7.6		7.6		6.8		6.4		4.5		3.6		3.1

Minimum Daily Solar Radiation - Global

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.9		1.1		1.8		2.3		3.8		4.4		4.8		4.8		4.7		3.3		2.1		1.1		0.9

Minimum Daily Solar Radiation - Diffuse

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		1.4		0.7		1		1.3		1.8		2		2.2		2.1		1.8		1.4		1.1		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		3.1		1.6		2.5		2.6		3.8		4.1		4.2		4.3		4.6		3.6		2.7		1.5		1.5

Minimum Daily Solar Radiation - Direct

Years on Record: 22

		ANNUAL		JAN		FEB		MAR		APR		MAY		JUN		JUL		AUG		SEP		OCT		NOV		DEC
kWh/m2		2.6		1.3		2		1.9		3.1		3.3		3.6		3.7		4.4		3.1		2.3		1.2		1.2

NEARBY - MAP

NEARBY - LIST

Niagara Falls, Ontario (2 mi / 3 km)
Colemans, Ontario (3 mi / 6 km)
Lewiston, New York (5 mi / 9 km)
Port Dalhousie, Ontario (5 mi / 8 km)
Niagara Falls - Reception, Ontario (7 mi / 12 km)

GEOBA.SE

St. Catharines Airport, Ontario