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Monthly climate in Armstrong, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Armstrong features a humid continental climate (Dfb). Temperatures typically range between -4 °C (25 °F) and 20 °C (67 °F) through the year, but rarely can drop to -28 °C (-18 °F) or can rise to as high as 43 °C (110 °F). The average annual precipitation amounts to about 741 mm (29.2 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually. Armstrong enjoys an average of 2802 hours of sunshine throughout the year, and daylight varies from 8 hours 4 minutes to 16 hours 21 minutes per day.

Monthly average temperatures in Armstrong, Canada

The warmest months in Armstrong are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (61 - 67 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -2 °C (25 - 29 °F) throughout the day. On average each year, Armstrong experiences 43 days above 25 °C (77.0 °F) and 121 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Armstrong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum7°C
(45°F)		11°C
(52°F)		18°C
(64°F)		23°C
(74°F)		29°C
(84°F)		43°C
(110°F)		42°C
(109°F)		36°C
(97°F)		32°C
(91°F)		22°C
(72°F)		11°C
(53°F)		11°C
(52°F)
Mean maximum6°C
(43°F)		8°C
(46°F)		13°C
(56°F)		19°C
(66°F)		26°C
(79°F)		30°C
(87°F)		35°C
(96°F)		35°C
(94°F)		28°C
(83°F)		18°C
(64°F)		9°C
(49°F)		7°C
(45°F)
Average high-0°C
(32°F)		0°C
(32°F)		7°C
(45°F)		11°C
(53°F)		18°C
(65°F)		22°C
(71°F)		26°C
(79°F)		26°C
(79°F)		19°C
(67°F)		10°C
(51°F)		4°C
(40°F)		1°C
(33°F)
Daily mean-4°C
(26°F)		-4°C
(25°F)		2°C
(36°F)		6°C
(43°F)		12°C
(55°F)		16°C
(61°F)		20°C
(67°F)		19°C
(67°F)		14°C
(57°F)		6°C
(43°F)		2°C
(36°F)		-2°C
(29°F)
Average low-7°C
(20°F)		-8°C
(18°F)		-2°C
(29°F)		1°C
(34°F)		6°C
(44°F)		9°C
(49°F)		12°C
(54°F)		12°C
(55°F)		9°C
(49°F)		2°C
(37°F)		-1°C
(31°F)		-4°C
(25°F)
Mean minimum-20°C
(-4°F)		-19°C
(-2°F)		-11°C
(12°F)		-3°C
(26°F)		1°C
(34°F)		5°C
(41°F)		8°C
(46°F)		7°C
(45°F)		4°C
(39°F)		-5°C
(24°F)		-8°C
(19°F)		-15°C
(5°F)
Minimum-26°C
(-15°F)		-24°C
(-10°F)		-25°C
(-12°F)		-6°C
(22°F)		-0°C
(32°F)		3°C
(38°F)		6°C
(43°F)		6°C
(44°F)		2°C
(37°F)		-8°C
(19°F)		-11°C
(12°F)		-28°C
(-18°F)

Compare climate in Armstrong with other places

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

Monthly average precipitation in Armstrong, Canada

Armstrong usually has the most precipitation in October, November and December, with an average of 15 rainy days and 88 mm (3.5 inches) of precipitation per month. The driest months in Armstrong are March, July and August. On average, 39 mm (1.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Armstrong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)55 (2.1)61 (2.4)53 (2.1)63 (2.5)55 (2.1)59 (2.3)40 (1.6)26 (1.0)66 (2.6)85 (3.3)100 (3.9)81 (3.2)
Average precipitation days (≥ 1 mm)1214131310107512141716

Monthly sunshine hours in Armstrong, Canada

The sunniest months in Armstrong are June, July and August, when the sun shines an average of 11 hours 45 minutes a day. Least sunny months in Armstrong: January, November and December receive an average of 3 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Armstrong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours90149221264336339391350256188108105
Mean daily daylight hours8h 33m10h 4m11h 56m13h 51m15h 30m16h 21m15h 52m14h 23m12h 32m10h 38m8h 57m8h 4m

Solar UV radiation in Armstrong, Canada

Armstrong experiences the highest level of ultraviolet (UV) radiation in June, July 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 Armstrong UV Index data.

Average daily maximum UV levels by month for Armstrong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235689986421