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Monthly climate in Port Sanilac, Michigan, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Port Sanilac features a humid continental climate (Dfb). Temperatures typically range between -3 °C (27 °F) and 21 °C (70 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 27 °C (81 °F). The average annual precipitation amounts to about 1099 mm (43.3 inches) and receives 141 rainy days on the 1 mm (0.04 inches) threshold annually. Port Sanilac enjoys an average of 2851 hours of sunshine throughout the year, and daylight varies from 8 hours 59 minutes to 15 hours 20 minutes per day.

Monthly average temperatures in Port Sanilac, Michigan, United States §

The warmest months in Port Sanilac are July, August and September, 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 March, when daily mean temperatures range from -3 to 0 °C (27 - 32 °F) throughout the day. On average each year, Port Sanilac experiences 6 days above 25 °C (77.0 °F) and 98 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Port Sanilac, Michigan, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 7°C
(45°F)		 8°C
(46°F)		 10°C
(50°F)		 13°C
(56°F)		 18°C
(65°F)		 23°C
(73°F)		 27°C
(80°F)		 27°C
(81°F)		 26°C
(79°F)		 21°C
(71°F)		 15°C
(60°F)		 13°C
(56°F)
Mean maximum 6°C
(43°F)		 6°C
(43°F)		 8°C
(47°F)		 11°C
(52°F)		 16°C
(61°F)		 21°C
(69°F)		 25°C
(78°F)		 26°C
(79°F)		 24°C
(75°F)		 20°C
(69°F)		 12°C
(55°F)		 10°C
(50°F)
Average high -0°C
(32°F)		 -0°C
(32°F)		 2°C
(36°F)		 5°C
(41°F)		 9°C
(49°F)		 16°C
(61°F)		 22°C
(71°F)		 23°C
(73°F)		 20°C
(68°F)		 14°C
(58°F)		 6°C
(44°F)		 3°C
(37°F)
Daily mean -2°C
(28°F)		 -3°C
(27°F)		 -0°C
(32°F)		 3°C
(38°F)		 7°C
(45°F)		 14°C
(58°F)		 20°C
(68°F)		 21°C
(70°F)		 18°C
(65°F)		 12°C
(55°F)		 5°C
(41°F)		 1°C
(34°F)
Average low -4°C
(25°F)		 -5°C
(23°F)		 -2°C
(28°F)		 1°C
(35°F)		 6°C
(43°F)		 13°C
(55°F)		 19°C
(66°F)		 20°C
(68°F)		 17°C
(62°F)		 11°C
(52°F)		 3°C
(38°F)		 -1°C
(31°F)
Mean minimum -12°C
(11°F)		 -12°C
(10°F)		 -9°C
(17°F)		 -2°C
(28°F)		 2°C
(35°F)		 9°C
(48°F)		 15°C
(59°F)		 16°C
(61°F)		 12°C
(54°F)		 5°C
(42°F)		 -3°C
(27°F)		 -7°C
(19°F)
Minimum -20°C
(-3°F)		 -18°C
(1°F)		 -14°C
(7°F)		 -4°C
(25°F)		 -0°C
(32°F)		 5°C
(41°F)		 12°C
(55°F)		 15°C
(60°F)		 11°C
(52°F)		 3°C
(38°F)		 -7°C
(20°F)		 -14°C
(7°F)

Compare climate in Port Sanilac with other places

Compare temperature, precipitation, sunshine, UV index in Port Sanilac, Michigan, United States with other places around the world.

Monthly average precipitation in Port Sanilac, Michigan, United States §

Port Sanilac usually has the most precipitation in April, May and October, with an average of 13 rainy days and 116 mm (4.6 inches) of precipitation per month. The driest months in Port Sanilac are March, June and July. On average, 76 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Port Sanilac, Michigan, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 88 (3.5) 87 (3.4) 79 (3.1) 113 (4.4) 100 (3.9) 77 (3.0) 71 (2.8) 82 (3.2) 89 (3.5) 136 (5.3) 99 (3.9) 79 (3.1)
Average precipitation days (≥ 1 mm) 12 12 11 13 11 9 10 10 11 16 13 13

Monthly sunshine hours in Port Sanilac, Michigan, United States §

The sunniest months in Port Sanilac are June, July and August, when the sun shines an average of 11 hours 12 minutes a day. Least sunny months in Port Sanilac: January, February and December receive an average of 4 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Port Sanilac, Michigan, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 99 153 236 249 302 340 357 333 291 211 154 119
Mean daily daylight hours 9h 21m 10h 30m 11h 58m 13h 27m 14h 42m 15h 20m 14h 59m 13h 52m 12h 26m 10h 57m 9h 39m 8h 59m

Solar UV radiation in Port Sanilac, Michigan, United States §

Port Sanilac experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 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 Port Sanilac UV Index data.

Average daily maximum UV levels by month for Port Sanilac, Michigan, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 4 5 8 9 10 9 9 7 5 3 2

Detailed Monthly Weather Insights for Port Sanilac, Michigan, United States

Discover in-depth weather details for every month in Port Sanilac. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Port Sanilac's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.