Weather in Newfoundland and Labrador

Calculated from weather data of St. John's International Airport (CYYT) between 2020 and 2024.

Maximum temperatures (°C)

Month	Average	2024	2023	2022	2021	2020
January	0.3	-2.6	2.2	1.7	0.4	-2.1
February	-1.4	0.0	-3.2	2.1	0.1	-1.4
March	1.5	3.2	-1.5	1.7	3.0	0.2
April	5.3		3.7	5.4	6.2	4.4
May	9.8		9.9	11.4	11.0	11.0
June	15.8		13.6	17.1	18.3	18.3
July	20.8		23.5	23.1	19.5	17.8
August	21.0		19.3	22.3	21.3	21.6
September	17.2		18.1	17.6	18.5	18.5
October	11.6		12.0	14.5	10.1	12.0
November	6.5		4.5	6.7	8.1	7.4
December	2.3		3.0	2.9	2.2	4.7
Average	8.3	0.6	8.9	10.8	9.9	9.5

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	-6.4	-7	-4	-6	-3	-7
February	-7.0	-4	-10	-6	-5	-8
March	-5.6	-3	-4	-5	-4	-6
April	-2.9		-2	-1	1	-2
May	1.5		2	2	3	2
June	7.1		6	9	8	10
July	12.4		16	14	11	11
August	13.4		13	15	13	13
September	10.0		11	12	10	11
October	5.4		6	7	6	6
November	0.4		-1	0	2	0
December	-3.3		-2	0	-4	0
Average	1.6	-5.5	2.7	3.6	3.2	2.5

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	0	0	0	0
25 °C or warmer	0	17	15	9	11
20 °C or warmer	0	51	72	58	54
0 °C or colder	82	138	120	116	144

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	38.5	47	37	44	43	33
February	41.4	44	53	41	40	39
March	32.6	35	46	36	25	36
April	28.0		33	32	36	18
May	18.9		27	18	10	13
June	20.3		30	22	14	20
July	14.9		15	8	20	21
August	14.3		26	16	6	11
September	19.5		21	31	11	12
October	20.9		33	9	30	23
November	28.1		33	32	25	21
December	38.0		34	52	39	34
Average	26.4	41.3	31.0	26.0	22.7	21.9

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	28.5	30	27	32	26	23
February	32.1	31	32	32	32	35
March	29.7	27	31	31	31	31
April	27.9		29	26	26	27
May	25.9		28	21	28	29
June	22.7		19	23	25	22
July	22.0		20	24	23	20
August	21.3		19	21	24	23
September	23.5		20	25	23	26
October	23.6		22	23	25	25
November	28.4		23	31	26	29
December	28.4		28	26	31	25
Average	26.1	29.1	24.4	25.5	26.3	25.9

17th highest wind speed of Canada

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

Prevailing wind direction

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

Newfoundland and Labrador weather Q&A

What is the warmest month in Newfoundland and Labrador?

The warmest month is August with an average temperature of 21 °C over the past years.

What is the coldest month in Newfoundland and Labrador?

The coldest month is February with an average daytime temperature of -1 °C in the past few years.

Which month is the wettest in Newfoundland and Labrador?

Chance of precipitation is the highest in February with a probability of around 41.4 %.

Which month is the driest in Newfoundland and Labrador?

The least rainfall and snow can be expected in August. The probability is about 14.4 %.