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Monthly climate in Dieppe, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Dieppe features a humid continental climate (Dfb). Temperatures typically range between -6 °C (21 °F) and 19 °C (67 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 33 °C (92 °F). The average annual precipitation amounts to about 1134 mm (44.7 inches) and receives 137 rainy days on the 1 mm (0.04 inches) threshold annually. Dieppe enjoys an average of 2838 hours of sunshine throughout the year, and daylight varies from 8 hours 41 minutes to 15 hours 41 minutes per day.

Monthly average temperatures in Dieppe, Canada

The warmest months in Dieppe are June, July and August, with daily mean temperatures ranging from 16 to 19 °C (60 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -6 to -3 °C (21 - 26 °F) throughout the day. On average each year, Dieppe experiences 32 days above 25 °C (77.0 °F) and 145 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Dieppe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum15°C
(60°F)		12°C
(53°F)		18°C
(65°F)		21°C
(70°F)		28°C
(82°F)		33°C
(92°F)		33°C
(92°F)		30°C
(87°F)		31°C
(88°F)		24°C
(76°F)		22°C
(72°F)		15°C
(59°F)
Mean maximum9°C
(49°F)		8°C
(47°F)		11°C
(53°F)		18°C
(64°F)		25°C
(76°F)		26°C
(80°F)		30°C
(87°F)		30°C
(86°F)		27°C
(81°F)		21°C
(70°F)		18°C
(65°F)		13°C
(56°F)
Average high-2°C
(29°F)		-1°C
(31°F)		2°C
(37°F)		9°C
(48°F)		15°C
(59°F)		21°C
(70°F)		24°C
(76°F)		25°C
(77°F)		20°C
(68°F)		14°C
(57°F)		6°C
(44°F)		1°C
(34°F)
Daily mean-6°C
(21°F)		-6°C
(22°F)		-2°C
(28°F)		4°C
(40°F)		10°C
(50°F)		16°C
(60°F)		19°C
(67°F)		19°C
(67°F)		15°C
(59°F)		9°C
(48°F)		2°C
(37°F)		-3°C
(26°F)
Average low-11°C
(12°F)		-11°C
(13°F)		-7°C
(21°F)		0°C
(33°F)		4°C
(40°F)		10°C
(51°F)		14°C
(58°F)		14°C
(58°F)		10°C
(51°F)		5°C
(41°F)		-1°C
(30°F)		-7°C
(19°F)
Mean minimum-22°C
(-8°F)		-22°C
(-7°F)		-17°C
(1°F)		-6°C
(22°F)		-1°C
(31°F)		3°C
(38°F)		9°C
(48°F)		8°C
(47°F)		2°C
(36°F)		-3°C
(27°F)		-10°C
(15°F)		-18°C
(1°F)
Minimum-28°C
(-18°F)		-25°C
(-13°F)		-20°C
(-4°F)		-10°C
(15°F)		-3°C
(27°F)		-1°C
(30°F)		7°C
(45°F)		7°C
(44°F)		-0°C
(32°F)		-6°C
(21°F)		-16°C
(3°F)		-22°C
(-7°F)

Compare climate in Dieppe with other places

Compare temperature, precipitation, sunshine, UV index in Dieppe, Canada with other places around the world.

Monthly average precipitation in Dieppe, Canada

Dieppe usually has the most precipitation in May, November and December, with an average of 13 rainy days and 117 mm (4.6 inches) of precipitation per month. The driest months in Dieppe are March, August and October. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Dieppe. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)92 (3.6)101 (4.0)78 (3.1)91 (3.6)104 (4.1)97 (3.8)82 (3.2)72 (2.8)90 (3.5)80 (3.2)145 (5.7)103 (4.0)
Average precipitation days (≥ 1 mm)101111121312111011101412

Monthly sunshine hours in Dieppe, Canada

The sunniest months in Dieppe are June, July and August, when the sun shines an average of 10 hours 40 minutes a day. Least sunny months in Dieppe: January, November and December receive an average of 4 hours 39 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Dieppe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours119189235223286321328332272220152157
Mean daily daylight hours9h 5m10h 21m11h 57m13h 35m14h 58m15h 41m15h 18m14h 3m12h 28m10h 51m9h 25m8h 41m

Solar UV radiation in Dieppe, Canada

Dieppe experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Dieppe UV Index data.

Average daily maximum UV levels by month for Dieppe. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2457910887532