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Monthly climate in Marion, Ohio, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Marion features a humid continental climate (Dfa).Temperatures typically range between -1 °C (30 °F) and 24 °C (75 °F) through the year, but rarely can drop to -24 °C (-11 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 1180 mm (46.5 inches) and receives 138 rainy days on the 1 mm (0.04 inches) threshold annually.Marion enjoys an average of 2862 hours of sunshine throughout the year, and daylight varies from 9 hours 18 minutes to 15 hours 0 minutes per day.

Monthly average temperatures in Marion, Ohio, United States §

The warmest months in Marion are June, July and August, with daily mean temperatures ranging from 22 to 24 °C (72 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 2 °C (30 - 35 °F) throughout the day. On average each year, Marion experiences 91 days above 25 °C (77.0 °F) and 95 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Marion, Ohio, 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 21°C
(69°F)		 24°C
(75°F)		 24°C
(75°F)		 28°C
(83°F)		 33°C
(91°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(91°F)		 34°C
(94°F)		 34°C
(93°F)		 25°C
(77°F)		 18°C
(65°F)
Mean maximum 15°C
(60°F)		 18°C
(64°F)		 21°C
(71°F)		 26°C
(80°F)		 31°C
(88°F)		 32°C
(91°F)		 33°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 29°C
(85°F)		 20°C
(68°F)		 17°C
(62°F)
Average high 2°C
(37°F)		 5°C
(41°F)		 10°C
(51°F)		 16°C
(61°F)		 22°C
(72°F)		 27°C
(80°F)		 28°C
(83°F)		 27°C
(81°F)		 25°C
(78°F)		 19°C
(66°F)		 10°C
(49°F)		 6°C
(43°F)
Daily mean -1°C
(30°F)		 0°C
(33°F)		 5°C
(41°F)		 10°C
(51°F)		 17°C
(63°F)		 22°C
(72°F)		 24°C
(75°F)		 23°C
(73°F)		 20°C
(68°F)		 14°C
(57°F)		 5°C
(42°F)		 2°C
(35°F)
Average low -5°C
(24°F)		 -4°C
(25°F)		 0°C
(33°F)		 5°C
(42°F)		 12°C
(54°F)		 17°C
(63°F)		 19°C
(67°F)		 18°C
(65°F)		 15°C
(59°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(29°F)
Mean minimum -17°C
(2°F)		 -15°C
(5°F)		 -9°C
(15°F)		 -5°C
(24°F)		 2°C
(36°F)		 10°C
(51°F)		 14°C
(57°F)		 12°C
(54°F)		 8°C
(46°F)		 1°C
(34°F)		 -8°C
(18°F)		 -12°C
(11°F)
Minimum -24°C
(-11°F)		 -21°C
(-5°F)		 -14°C
(8°F)		 -7°C
(20°F)		 -2°C
(29°F)		 6°C
(43°F)		 13°C
(56°F)		 9°C
(49°F)		 5°C
(41°F)		 -2°C
(29°F)		 -15°C
(5°F)		 -18°C
(-1°F)

Compare climate in Marion with other places

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

Monthly average precipitation in Marion, Ohio, United States §

Marion usually has the most precipitation in April, May and June, with an average of 13 rainy days and 124 mm (4.9 inches) of precipitation per month.The driest months in Marion are January, August and September. On average, 77 mm (3.0 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Marion, Ohio, 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) 72 (2.8) 97 (3.8) 97 (3.8) 112 (4.4) 125 (4.9) 135 (5.3) 112 (4.4) 81 (3.2) 78 (3.1) 96 (3.8) 92 (3.6) 83 (3.3)
Average precipitation days (≥ 1 mm) 9 13 12 13 14 13 12 11 8 13 9 11

Monthly sunshine hours in Marion, Ohio, United States §

The sunniest months in Marion are June, July and August, when the sun shines an average of 10 hours 51 minutes a day.Least sunny months in Marion: January, February and December receive an average of 4 hours 36 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Marion, Ohio, 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 114 155 227 236 281 319 354 325 283 231 181 150
Mean daily daylight hours 9h 37m 10h 39m 11h 58m 13h 19m 14h 27m 15h 0m 14h 42m 13h 41m 12h 24m 11h 4m 9h 54m 9h 18m

Solar UV radiation in Marion, Ohio, United States §

Marion experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 10, which corresponds to the Very High category of sun exposure.January, November and December are in the 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 Marion UV Index data.

Average daily maximum UV levels by month for Marion, Ohio, 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) 3 5 6 9 10 10 10 9 8 6 4 3