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Monthly climate in Saint-Germain-de-Grantham, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Saint-Germain-de-Grantham features a humid continental climate (Dfb). Temperatures typically range between -8 °C (17 °F) and 21 °C (70 °F) through the year, but rarely can drop to -33 °C (-28 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1230 mm (48.4 inches) and receives 151 rainy days on the 1 mm (0.04 inches) threshold annually. Saint-Germain-de-Grantham enjoys an average of 2754 hours of sunshine throughout the year, and daylight varies from 8 hours 42 minutes to 15 hours 39 minutes per day.

Monthly average temperatures in Saint-Germain-de-Grantham, Canada

The warmest months in Saint-Germain-de-Grantham are June, July and August, with daily mean temperatures ranging from 18 to 21 °C (65 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 23 °F) throughout the day. On average each year, Saint-Germain-de-Grantham experiences 48 days above 25 °C (77.0 °F) and 139 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Saint-Germain-de-Grantham. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(55°F)		13°C
(56°F)		20°C
(69°F)		25°C
(77°F)		35°C
(96°F)		32°C
(91°F)		34°C
(94°F)		33°C
(91°F)		30°C
(87°F)		25°C
(77°F)		22°C
(72°F)		16°C
(61°F)
Mean maximum6°C
(44°F)		8°C
(46°F)		13°C
(56°F)		21°C
(71°F)		30°C
(86°F)		30°C
(86°F)		31°C
(88°F)		31°C
(88°F)		28°C
(82°F)		23°C
(74°F)		16°C
(60°F)		11°C
(52°F)
Average high-4°C
(24°F)		-2°C
(28°F)		2°C
(36°F)		10°C
(51°F)		19°C
(66°F)		23°C
(74°F)		26°C
(79°F)		25°C
(78°F)		21°C
(70°F)		14°C
(57°F)		4°C
(40°F)		-2°C
(29°F)
Daily mean-8°C
(17°F)		-7°C
(20°F)		-2°C
(28°F)		6°C
(43°F)		13°C
(56°F)		18°C
(65°F)		21°C
(70°F)		20°C
(68°F)		15°C
(60°F)		9°C
(49°F)		1°C
(34°F)		-5°C
(23°F)
Average low-13°C
(9°F)		-12°C
(11°F)		-7°C
(20°F)		1°C
(35°F)		8°C
(46°F)		12°C
(55°F)		16°C
(61°F)		15°C
(60°F)		11°C
(51°F)		5°C
(42°F)		-3°C
(27°F)		-9°C
(16°F)
Mean minimum-27°C
(-16°F)		-24°C
(-12°F)		-20°C
(-4°F)		-6°C
(21°F)		-1°C
(31°F)		6°C
(43°F)		9°C
(48°F)		8°C
(47°F)		2°C
(36°F)		-3°C
(27°F)		-14°C
(7°F)		-22°C
(-8°F)
Minimum-33°C
(-28°F)		-26°C
(-14°F)		-25°C
(-13°F)		-9°C
(16°F)		-1°C
(30°F)		1°C
(35°F)		8°C
(46°F)		6°C
(43°F)		-3°C
(27°F)		-6°C
(21°F)		-21°C
(-5°F)		-28°C
(-18°F)

Compare climate in Saint-Germain-de-Grantham with other places

Compare temperature, precipitation, sunshine, UV index in Saint-Germain-de-Grantham, Canada with other places around the world.

Monthly average precipitation in Saint-Germain-de-Grantham, Canada

Saint-Germain-de-Grantham usually has the most precipitation in June, August and October, with an average of 12 rainy days and 126 mm (4.9 inches) of precipitation per month. The driest months in Saint-Germain-de-Grantham are February, March and September. On average, 79 mm (3.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Saint-Germain-de-Grantham. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)88 (3.5)83 (3.3)84 (3.3)117 (4.6)102 (4.0)124 (4.9)106 (4.2)118 (4.6)69 (2.7)135 (5.3)117 (4.6)87 (3.4)
Average precipitation days (≥ 1 mm)111212131312151310131413

Monthly sunshine hours in Saint-Germain-de-Grantham, Canada

The sunniest months in Saint-Germain-de-Grantham are June, July and August, when the sun shines an average of 10 hours 47 minutes a day. Least sunny months in Saint-Germain-de-Grantham: January, November and December receive an average of 4 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Saint-Germain-de-Grantham. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours113152229218288324337330283192141141
Mean daily daylight hours9h 6m10h 22m11h 57m13h 34m14h 57m15h 39m15h 16m14h 2m12h 28m10h 52m9h 26m8h 42m

Solar UV radiation in Saint-Germain-de-Grantham, Canada

Saint-Germain-de-Grantham 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 / 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 Saint-Germain-de-Grantham UV Index data.

Average daily maximum UV levels by month for Saint-Germain-de-Grantham. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)245799887532