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Monthly climate in Harvey, Michigan, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Harvey features a humid continental climate (Dfb).Temperatures typically range between -7 °C (19 °F) and 19 °C (66 °F) through the year, but rarely can drop to -23 °C (-8 °F) or can rise to as high as 30 °C (86 °F).The average annual precipitation amounts to about 981 mm (38.6 inches) and receives 142 rainy days on the 1 mm (0.04 inches) threshold annually.Harvey enjoys an average of 2719 hours of sunshine throughout the year, and daylight varies from 8 hours 37 minutes to 15 hours 44 minutes per day.

Monthly average temperatures in Harvey, Michigan, United States §

The warmest months in Harvey are July, August and September, with daily mean temperatures ranging from 15 to 19 °C (60 - 66 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -7 to -3 °C (19 - 26 °F) throughout the day. On average each year, Harvey experiences 12 days above 25 °C (77.0 °F) and 143 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Harvey, 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 5°C
(41°F)		 10°C
(50°F)		 12°C
(54°F)		 17°C
(62°F)		 26°C
(79°F)		 27°C
(81°F)		 30°C
(86°F)		 28°C
(83°F)		 28°C
(83°F)		 23°C
(74°F)		 19°C
(66°F)		 12°C
(54°F)
Mean maximum 3°C
(37°F)		 5°C
(41°F)		 8°C
(47°F)		 14°C
(58°F)		 22°C
(72°F)		 25°C
(78°F)		 28°C
(83°F)		 27°C
(81°F)		 26°C
(79°F)		 21°C
(70°F)		 12°C
(53°F)		 8°C
(46°F)
Average high -4°C
(25°F)		 -4°C
(25°F)		 1°C
(34°F)		 5°C
(41°F)		 12°C
(54°F)		 18°C
(64°F)		 22°C
(72°F)		 22°C
(71°F)		 19°C
(66°F)		 12°C
(53°F)		 4°C
(39°F)		 -1°C
(31°F)
Daily mean -6°C
(21°F)		 -7°C
(19°F)		 -2°C
(28°F)		 2°C
(36°F)		 8°C
(47°F)		 14°C
(57°F)		 19°C
(66°F)		 18°C
(65°F)		 15°C
(60°F)		 9°C
(48°F)		 1°C
(35°F)		 -3°C
(26°F)
Average low -9°C
(16°F)		 -10°C
(14°F)		 -5°C
(23°F)		 -1°C
(31°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(60°F)		 15°C
(60°F)		 12°C
(54°F)		 6°C
(43°F)		 -1°C
(31°F)		 -5°C
(22°F)
Mean minimum -18°C
(0°F)		 -18°C
(-1°F)		 -14°C
(8°F)		 -6°C
(21°F)		 -0°C
(32°F)		 7°C
(44°F)		 11°C
(53°F)		 11°C
(51°F)		 7°C
(45°F)		 -0°C
(31°F)		 -7°C
(19°F)		 -16°C
(4°F)
Minimum -23°C
(-8°F)		 -22°C
(-7°F)		 -20°C
(-4°F)		 -10°C
(14°F)		 -3°C
(27°F)		 3°C
(38°F)		 10°C
(51°F)		 9°C
(48°F)		 4°C
(40°F)		 -4°C
(26°F)		 -10°C
(14°F)		 -21°C
(-6°F)

Compare climate in Harvey with other places

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

Monthly average precipitation in Harvey, Michigan, United States §

Harvey usually has the most precipitation in August, September and October, with an average of 13 rainy days and 108 mm (4.3 inches) of precipitation per month.The driest months in Harvey are January, February and March. On average, 56 mm (2.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Harvey, 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) 47 (1.8) 62 (2.4) 59 (2.3) 94 (3.7) 73 (2.9) 97 (3.8) 78 (3.1) 99 (3.9) 98 (3.9) 128 (5.0) 79 (3.1) 68 (2.7)
Average precipitation days (≥ 1 mm) 12 12 11 11 10 11 9 12 11 16 15 12

Monthly sunshine hours in Harvey, Michigan, United States §

The sunniest months in Harvey are June, July and August, when the sun shines an average of 11 hours 8 minutes a day.Least sunny months in Harvey: January, November and December receive an average of 3 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Harvey, 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 86 149 220 231 307 341 361 322 271 193 129 105
Mean daily daylight hours 9h 2m 10h 20m 11h 57m 13h 36m 15h 1m 15h 44m 15h 21m 14h 4m 12h 29m 10h 50m 9h 22m 8h 37m

Solar UV radiation in Harvey, Michigan, United States §

Harvey 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 / 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 Harvey UV Index data.

Average daily maximum UV levels by month for Harvey, 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 7 8 9 9 8 7 5 3 2