Weather in Simcoe County

Calculated from weather data of Lester B Pearson International Airport (CYYZ) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	31.0	32.0	35.0	26.0	32.0	35.0
February	35.0	41.0	38.0	32.0	29.0	33.0
March	42.0	46.0	40.0	42.0	49.0	45.0
April	53.0		57.0	52.0	56.0	51.0
May	66.0		67.0	70.0	67.0	63.0
June	77.0		75.0	78.0	80.0	80.0
July	82.0		80.0	82.0	78.0	86.0
August	80.0		76.0	81.0	83.0	81.0
September	73.0		74.0	73.0	73.0	72.0
October	60.0		62.0	60.0	63.0	57.0
November	46.0		46.0	49.0	47.0	52.0
December	37.0		42.0	36.0	41.0	37.0
Average	55.0	40.0	58.0	58.0	58.0	58.0

30th highest temperature of Canada

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	21.0	24	28	11	24	25
February	22.0	26	23	18	17	22
March	28.0	33	29	28	29	32
April	37.0		40	37	39	36
May	49.0		48	52	48	46
June	59.0		60	58	62	59
July	65.0		65	64	64	68
August	64.0		61	65	67	63
September	57.0		58	58	56	55
October	47.0		49	44	52	43
November	33.0		33	36	34	38
December	27.0		33	28	30	27
Average	41.0	28.0	44.0	42.0	44.0	43.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	0	9	17	19	22
77 °F or warmer	0	57	80	73	78
68 °F or warmer	0	137	135	137	120
32 °F or colder	55	90	102	102	97

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	24.1	25	35	19	13	18
February	21.2	10	22	27	21	19
March	17.8	19	23	25	7	15
April	15.1		14	17	14	9
May	11.0		10	9	7	11
June	6.5		11	7	5	2
July	5.6		9	7	9	3
August	4.6		7	9	2	3
September	5.0		2	11	5	2
October	13.5		11	10	18	14
November	14.6		10	18	13	14
December	21.8		29	17	16	24
Average	13.3	18.2	14.3	13.8	10.1	10.2

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	11.7	12	10	12	10	12
February	12.5	11	14	13	12	12
March	12.8	12	13	12	13	13
April	12.3		12	12	11	14
May	10.4		9	10	10	11
June	10.6		10	11	11	11
July	9.6		9	11	9	10
August	9.9		10	10	9	11
September	10.0		9	10	11	11
October	10.7		11	9	9	11
November	11.6		12	12	11	12
December	11.3		10	12	12	12
Average	11.1	11.4	10.5	10.9	10.6	11.4

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	W	NW	NW	NW	S
February	W	W	W	W	SW
March	W	NW	W	W	SE
April		W	W	NW	NW
May		NW	S	W	N
June		N	W	SW	W
July		W	W	N	W
August		NW	W	SW	W
September		SE	NW	W	SW
October		W	SW	N	W
November		W	W	W	W
December		NW	W	W	W

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Simcoe County weather Q&A

What is the warmest month in Simcoe County?

The warmest month is July with an average temperature of 82 °F over the past years.

What is the coldest month in Simcoe County?

The coldest month is January with an average daytime temperature of 31 °F in the past few years.

Which month is the wettest in Simcoe County?

Chance of precipitation is the highest in January with a probability of around 24.1 %.

Which month is the driest in Simcoe County?

The least rainfall and snow can be expected in August. The probability is about 4.6 %.