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Monthly climate in Pentwater, Michigan, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Pentwater 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 -21 °C (-5 °F) or can rise to as high as 27 °C (80 °F). The average annual precipitation amounts to about 1060 mm (41.7 inches) and receives 143 rainy days on the 1 mm (0.04 inches) threshold annually. Pentwater enjoys an average of 2878 hours of sunshine throughout the year, and daylight varies from 8 hours 57 minutes to 15 hours 23 minutes per day.

Monthly average temperatures in Pentwater, Michigan, United States §

The warmest months in Pentwater are July, August and September, with daily mean temperatures ranging from 18 to 21 °C (64 - 70 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -3 to 1 °C (27 - 33 °F) throughout the day. On average each year, Pentwater experiences 5 days above 25 °C (77.0 °F) and 92 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Pentwater, 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 9°C
(48°F)		 10°C
(51°F)		 14°C
(58°F)		 16°C
(61°F)		 27°C
(80°F)		 24°C
(76°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(78°F)		 22°C
(72°F)		 17°C
(63°F)		 13°C
(55°F)
Mean maximum 7°C
(44°F)		 7°C
(44°F)		 10°C
(50°F)		 13°C
(56°F)		 19°C
(67°F)		 22°C
(72°F)		 25°C
(77°F)		 26°C
(78°F)		 24°C
(76°F)		 21°C
(70°F)		 12°C
(54°F)		 10°C
(50°F)
Average high -0°C
(32°F)		 -0°C
(32°F)		 3°C
(38°F)		 7°C
(44°F)		 12°C
(53°F)		 17°C
(64°F)		 22°C
(72°F)		 23°C
(74°F)		 20°C
(69°F)		 14°C
(57°F)		 6°C
(43°F)		 2°C
(37°F)
Daily mean -2°C
(28°F)		 -3°C
(27°F)		 1°C
(34°F)		 5°C
(40°F)		 9°C
(49°F)		 15°C
(60°F)		 20°C
(69°F)		 21°C
(70°F)		 18°C
(64°F)		 12°C
(53°F)		 4°C
(40°F)		 1°C
(33°F)
Average low -4°C
(24°F)		 -5°C
(23°F)		 -1°C
(30°F)		 3°C
(37°F)		 7°C
(45°F)		 13°C
(56°F)		 18°C
(65°F)		 19°C
(66°F)		 16°C
(60°F)		 10°C
(50°F)		 2°C
(37°F)		 -1°C
(30°F)
Mean minimum -12°C
(10°F)		 -13°C
(8°F)		 -8°C
(18°F)		 -2°C
(28°F)		 2°C
(36°F)		 9°C
(49°F)		 15°C
(59°F)		 14°C
(58°F)		 10°C
(50°F)		 4°C
(39°F)		 -4°C
(26°F)		 -9°C
(17°F)
Minimum -21°C
(-5°F)		 -17°C
(1°F)		 -15°C
(5°F)		 -6°C
(22°F)		 1°C
(33°F)		 5°C
(42°F)		 13°C
(56°F)		 12°C
(54°F)		 8°C
(46°F)		 2°C
(37°F)		 -6°C
(21°F)		 -14°C
(6°F)

Compare climate in Pentwater with other places

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

Monthly average precipitation in Pentwater, Michigan, United States §

Pentwater usually has the most precipitation in May, June and October, with an average of 14 rainy days and 117 mm (4.6 inches) of precipitation per month. The driest months in Pentwater are February, March and July. On average, 66 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Pentwater, 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) 69 (2.7) 63 (2.5) 68 (2.7) 103 (4.1) 107 (4.2) 106 (4.2) 66 (2.6) 89 (3.5) 99 (3.9) 137 (5.4) 74 (2.9) 79 (3.1)
Average precipitation days (≥ 1 mm) 12 14 12 12 12 12 8 7 10 18 12 14

Monthly sunshine hours in Pentwater, Michigan, United States §

The sunniest months in Pentwater are June, July and August, when the sun shines an average of 11 hours 20 minutes a day. Least sunny months in Pentwater: January, November and December receive an average of 4 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Pentwater, 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 89 168 243 252 303 333 365 344 283 209 163 120
Mean daily daylight hours 9h 19m 10h 29m 11h 58m 13h 28m 14h 44m 15h 23m 15h 2m 13h 53m 12h 26m 10h 57m 9h 38m 8h 57m

Solar UV radiation in Pentwater, Michigan, United States §

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

Average daily maximum UV levels by month for Pentwater, 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 10 9 7 5 3 2

Detailed Monthly Weather Insights for Pentwater, Michigan, United States

Discover in-depth weather details for every month in Pentwater. 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 Pentwater'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.