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Monthly climate in Pontiac, Michigan, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Pontiac features a humid continental climate (Dfb).Temperatures typically range between -4 °C (26 °F) and 23 °C (74 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 35 °C (95 °F).The average annual precipitation amounts to about 1000 mm (39.4 inches) and receives 136 rainy days on the 1 mm (0.04 inches) threshold annually.Pontiac enjoys an average of 2887 hours of sunshine throughout the year, and daylight varies from 9 hours 4 minutes to 15 hours 16 minutes per day.

Monthly average temperatures in Pontiac, Michigan, United States §

The warmest months in Pontiac are June, July and August, with daily mean temperatures ranging from 21 to 23 °C (69 - 74 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to 0 °C (26 - 32 °F) throughout the day. On average each year, Pontiac experiences 73 days above 25 °C (77.0 °F) and 115 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Pontiac, 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 14°C
(57°F)		 19°C
(67°F)		 23°C
(74°F)		 28°C
(82°F)		 34°C
(93°F)		 35°C
(95°F)		 35°C
(95°F)		 33°C
(92°F)		 34°C
(93°F)		 29°C
(85°F)		 24°C
(76°F)		 18°C
(64°F)
Mean maximum 10°C
(50°F)		 13°C
(56°F)		 20°C
(68°F)		 24°C
(76°F)		 31°C
(88°F)		 32°C
(91°F)		 33°C
(92°F)		 32°C
(89°F)		 31°C
(89°F)		 27°C
(80°F)		 17°C
(63°F)		 14°C
(57°F)
Average high -0°C
(32°F)		 2°C
(35°F)		 7°C
(45°F)		 13°C
(55°F)		 20°C
(68°F)		 26°C
(78°F)		 28°C
(83°F)		 27°C
(81°F)		 23°C
(74°F)		 16°C
(61°F)		 7°C
(45°F)		 3°C
(37°F)
Daily mean -4°C
(26°F)		 -3°C
(27°F)		 2°C
(36°F)		 8°C
(46°F)		 15°C
(59°F)		 21°C
(69°F)		 23°C
(74°F)		 22°C
(72°F)		 18°C
(65°F)		 12°C
(53°F)		 4°C
(39°F)		 -0°C
(32°F)
Average low -7°C
(20°F)		 -7°C
(20°F)		 -2°C
(28°F)		 3°C
(38°F)		 10°C
(50°F)		 15°C
(60°F)		 18°C
(65°F)		 17°C
(63°F)		 13°C
(56°F)		 8°C
(46°F)		 0°C
(33°F)		 -3°C
(27°F)
Mean minimum -19°C
(-2°F)		 -20°C
(-3°F)		 -11°C
(12°F)		 -4°C
(26°F)		 1°C
(34°F)		 10°C
(50°F)		 13°C
(56°F)		 12°C
(53°F)		 6°C
(43°F)		 -1°C
(31°F)		 -8°C
(18°F)		 -12°C
(11°F)
Minimum -26°C
(-14°F)		 -26°C
(-15°F)		 -17°C
(1°F)		 -6°C
(22°F)		 -3°C
(28°F)		 7°C
(44°F)		 12°C
(54°F)		 9°C
(49°F)		 2°C
(35°F)		 -2°C
(28°F)		 -13°C
(8°F)		 -22°C
(-8°F)

Compare climate in Pontiac with other places

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

Monthly average precipitation in Pontiac, Michigan, United States §

Pontiac usually has the most precipitation in May, June and October, with an average of 13 rainy days and 107 mm (4.2 inches) of precipitation per month.The driest months in Pontiac are January, February and December. On average, 61 mm (2.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Pontiac, 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) 62 (2.4) 68 (2.7) 68 (2.7) 95 (3.8) 110 (4.3) 104 (4.1) 93 (3.7) 92 (3.6) 78 (3.1) 107 (4.2) 71 (2.8) 53 (2.1)
Average precipitation days (≥ 1 mm) 9 11 9 14 14 12 12 12 10 14 10 9

Monthly sunshine hours in Pontiac, Michigan, United States §

The sunniest months in Pontiac are June, July and August, when the sun shines an average of 11 hours 12 minutes a day.Least sunny months in Pontiac: January, February and December receive an average of 4 hours 28 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Pontiac, 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 107 163 241 248 287 338 357 334 282 220 167 135
Mean daily daylight hours 9h 25m 10h 32m 11h 57m 13h 25m 14h 39m 15h 16m 14h 56m 13h 49m 12h 26m 10h 59m 9h 43m 9h 4m

Solar UV radiation in Pontiac, Michigan, United States §

Pontiac 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, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Pontiac UV Index data.

Average daily maximum UV levels by month for Pontiac, 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 4 2