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Monthly climate in Deer Lake, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Deer Lake features a humid continental climate (Dfb). Temperatures typically range between -8 °C (18 °F) and 17 °C (62 °F) through the year, but rarely can drop to -22 °C (-8 °F) or can rise to as high as 29 °C (84 °F). The average annual precipitation amounts to about 1374 mm (54.1 inches) and receives 195 rainy days on the 1 mm (0.04 inches) threshold annually. Deer Lake enjoys an average of 2253 hours of sunshine throughout the year, and daylight varies from 8 hours 15 minutes to 16 hours 8 minutes per day.

Monthly average temperatures in Deer Lake, Canada

The warmest months in Deer Lake are July, August and September, with daily mean temperatures ranging from 12 to 17 °C (54 - 62 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -8 to -4 °C (18 - 24 °F) throughout the day. On average each year, Deer Lake experiences 7 days above 25 °C (77.0 °F) and 167 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Deer Lake. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum10°C
(50°F)		8°C
(47°F)		12°C
(53°F)		17°C
(63°F)		22°C
(72°F)		28°C
(83°F)		27°C
(82°F)		29°C
(84°F)		24°C
(75°F)		24°C
(75°F)		17°C
(62°F)		12°C
(54°F)
Mean maximum5°C
(42°F)		6°C
(42°F)		7°C
(45°F)		13°C
(55°F)		21°C
(69°F)		22°C
(72°F)		27°C
(80°F)		27°C
(81°F)		23°C
(73°F)		19°C
(67°F)		15°C
(58°F)		9°C
(49°F)
Average high-3°C
(26°F)		-4°C
(25°F)		-1°C
(31°F)		5°C
(41°F)		11°C
(51°F)		17°C
(62°F)		21°C
(69°F)		22°C
(71°F)		16°C
(61°F)		10°C
(51°F)		5°C
(41°F)		-0°C
(32°F)
Daily mean-7°C
(20°F)		-8°C
(18°F)		-4°C
(24°F)		1°C
(34°F)		6°C
(43°F)		12°C
(53°F)		16°C
(61°F)		17°C
(62°F)		12°C
(54°F)		6°C
(44°F)		2°C
(35°F)		-3°C
(27°F)
Average low-10°C
(14°F)		-12°C
(12°F)		-8°C
(17°F)		-3°C
(26°F)		1°C
(35°F)		7°C
(44°F)		11°C
(52°F)		12°C
(53°F)		7°C
(46°F)		3°C
(38°F)		-1°C
(30°F)		-6°C
(22°F)
Mean minimum-18°C
(-1°F)		-20°C
(-3°F)		-17°C
(2°F)		-13°C
(9°F)		-4°C
(25°F)		1°C
(35°F)		5°C
(41°F)		5°C
(42°F)		1°C
(34°F)		-3°C
(27°F)		-8°C
(18°F)		-13°C
(9°F)
Minimum-21°C
(-5°F)		-22°C
(-8°F)		-19°C
(-3°F)		-17°C
(1°F)		-8°C
(19°F)		-1°C
(30°F)		2°C
(36°F)		4°C
(39°F)		-1°C
(31°F)		-4°C
(26°F)		-11°C
(12°F)		-16°C
(3°F)

Compare climate in Deer Lake with other places

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

Monthly average precipitation in Deer Lake, Canada

Deer Lake usually has the most precipitation in October, November and December, with an average of 18 rainy days and 142 mm (5.6 inches) of precipitation per month. The driest months in Deer Lake are January, May and July. On average, 92 mm (3.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Deer Lake. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)96 (3.8)118 (4.6)106 (4.2)109 (4.3)99 (3.9)101 (4.0)81 (3.2)111 (4.4)125 (4.9)130 (5.1)154 (6.1)144 (5.7)
Average precipitation days (≥ 1 mm)171917151514121416162020

Monthly sunshine hours in Deer Lake, Canada

The sunniest months in Deer Lake are June, July and August, when the sun shines an average of 9 hours 55 minutes a day. Least sunny months in Deer Lake: January, February and December receive an average of 2 hours 12 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Deer Lake. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours57911732182582863113142151829251
Mean daily daylight hours8h 43m10h 9m11h 56m13h 45m15h 20m16h 8m15h 42m14h 17m12h 31m10h 43m9h 6m8h 15m

Solar UV radiation in Deer Lake, Canada

Deer Lake experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Deer Lake UV Index data.

Average daily maximum UV levels by month for Deer Lake. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789886421