Weather in Cornwallis

Calculated from weather data of Brandon Municipal Airport (CYBR) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-10.2	-10.1	-11.8	-13.8	-6.4	-10.5
February	-10.7	-3.2	-8.5	-12.1	-14.9	-6.4
March	-2.9	-4.9	-6.5	-3.7	6.4	0.9
April	8.6		5.5	4.0	12.5	8.4
May	19.6		23.1	16.1	18.6	18.0
June	25.1		26.5	23.8	26.3	25.5
July	26.4		24.6	25.8	28.3	26.5
August	25.7		25.5	26.1	24.8	26.0
September	20.4		22.6	21.8	23.8	20.0
October	10.0		9.9	12.0	14.9	7.0
November	-1.4		1.7	-1.1	2.6	2.2
December	-7.6		-2.5	-10.5	-10.4	-3.2
Average	7.4	-6.7	9.6	8.4	10.9	9.7

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	-19.4	-18	-18	-23	-15	-17
February	-21.6	-11	-21	-25	-24	-18
March	-12.1	-13	-18	-11	-7	-10
April	-4.1		-4	-4	-4	-5
May	4.4		8	5	2	4
June	11.2		14	11	12	11
July	12.6		10	13	14	15
August	10.7		11	12	11	12
September	6.4		8	7	7	5
October	-2.8		0	0	1	-4
November	-10.3		-7	-9	-8	-10
December	-16.2		-12	-17	-19	-13
Average	-5.7	-14.2	-3.7	-3.0	-3.6	-3.4

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
30 °C or warmer	0	10	9	20	4
25 °C or warmer	0	67	54	73	65
20 °C or warmer	0	126	108	128	115
0 °C or colder	87	189	179	198	207

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	33.1	52	25	53	24	35
February	25.9	26	19	33	29	25
March	16.3	27	12	27	9	14
April	12.6		18	30	10	13
May	8.8		8	24	7	9
June	7.5		6	12	7	5
July	3.4		5	6	4	4
August	5.6		9	2	9	4
September	7.5		7	5	1	4
October	12.4		21	7	6	14
November	24.9		16	35	16	16
December	23.8		7	35	33	28
Average	16.1	34.5	12.3	20.4	11.5	12.9

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 (km/h)

Month	Average	2024	2023	2022	2021	2020
January	18.0	18	15	20	18	18
February	18.4	20	16	20	19	17
March	19.2	21	19	18	21	20
April	21.9		22	27	21	22
May	20.4		21	23	20	20
June	18.4		14	21	18	22
July	15.8		14	16	15	17
August	15.1		14	14	17	15
September	18.9		16	19	19	21
October	21.0		18	21	20	24
November	19.0		19	23	18	20
December	17.7		16	20	20	17
Average	18.7	19.6	16.9	20.0	18.6	19.5

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	NW	W	NW	W	NW
February	N	W	NW	W	W
March	N	NE	NW	W	NW
April		NE	NE	N	NW
May		E	NE	N	E
June		E	NW	NW	W
July		NW	NW	NE	W
August		NW	NW	NW	W
September		E	NW	W	W
October		N	NW	N	W
November		W	NW	W	W
December		NW	N	W	W

Prevailing wind direction

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

Cornwallis weather Q&A

What is the warmest month in Cornwallis?

The warmest month is July with an average temperature of 26 °C over the past years.

What is the coldest month in Cornwallis?

The coldest month is January with an average daytime temperature of -10 °C in the past few years.

Which month is the wettest in Cornwallis?

Chance of precipitation is the highest in January with a probability of around 33.2 %.

Which month is the driest in Cornwallis?

The least rainfall and snow can be expected in July. The probability is about 3.5 %.