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Monthly climate in Blanchester, Ohio, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Blanchester features a humid subtropical climate (Cfa).Temperatures typically range between 0 °C (33 °F) and 25 °C (77 °F) through the year, but rarely can drop to -25 °C (-14 °F) or can rise to as high as 34 °C (93 °F).The average annual precipitation amounts to about 1331 mm (52.4 inches) and receives 139 rainy days on the 1 mm (0.04 inches) threshold annually.Blanchester enjoys an average of 2880 hours of sunshine throughout the year, and daylight varies from 9 hours 26 minutes to 14 hours 52 minutes per day.

Monthly average temperatures in Blanchester, Ohio, United States §

The warmest months in Blanchester are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (73 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (33 - 38 °F) throughout the day. On average each year, Blanchester experiences 105 days above 25 °C (77.0 °F) and 78 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Blanchester, 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 20°C
(69°F)		 25°C
(77°F)		 26°C
(78°F)		 29°C
(85°F)		 32°C
(90°F)		 34°C
(93°F)		 34°C
(93°F)		 33°C
(92°F)		 34°C
(93°F)		 33°C
(92°F)		 26°C
(79°F)		 19°C
(66°F)
Mean maximum 17°C
(62°F)		 20°C
(67°F)		 23°C
(74°F)		 27°C
(82°F)		 31°C
(88°F)		 32°C
(90°F)		 33°C
(91°F)		 32°C
(90°F)		 32°C
(90°F)		 29°C
(85°F)		 21°C
(70°F)		 18°C
(64°F)
Average high 4°C
(40°F)		 7°C
(45°F)		 12°C
(54°F)		 17°C
(63°F)		 23°C
(74°F)		 27°C
(81°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(79°F)		 20°C
(68°F)		 11°C
(52°F)		 7°C
(46°F)
Daily mean 0°C
(33°F)		 2°C
(37°F)		 7°C
(45°F)		 12°C
(54°F)		 18°C
(65°F)		 23°C
(73°F)		 25°C
(77°F)		 23°C
(74°F)		 21°C
(70°F)		 15°C
(59°F)		 6°C
(43°F)		 3°C
(38°F)
Average low -3°C
(26°F)		 -2°C
(29°F)		 2°C
(36°F)		 7°C
(45°F)		 14°C
(57°F)		 18°C
(65°F)		 20°C
(69°F)		 19°C
(67°F)		 16°C
(61°F)		 10°C
(51°F)		 2°C
(35°F)		 -1°C
(31°F)
Mean minimum -17°C
(2°F)		 -13°C
(9°F)		 -8°C
(17°F)		 -3°C
(26°F)		 3°C
(38°F)		 12°C
(54°F)		 15°C
(60°F)		 13°C
(56°F)		 9°C
(48°F)		 0°C
(33°F)		 -7°C
(20°F)		 -10°C
(14°F)
Minimum -25°C
(-14°F)		 -19°C
(-2°F)		 -14°C
(8°F)		 -5°C
(23°F)		 -0°C
(32°F)		 8°C
(47°F)		 14°C
(57°F)		 12°C
(55°F)		 6°C
(43°F)		 -1°C
(30°F)		 -15°C
(6°F)		 -17°C
(2°F)

Compare climate in Blanchester with other places

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

Monthly average precipitation in Blanchester, Ohio, United States §

Blanchester usually has the most precipitation in March, May and June, with an average of 13 rainy days and 135 mm (5.3 inches) of precipitation per month.The driest months in Blanchester are January, August and September. On average, 84 mm (3.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Blanchester, 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) 84 (3.3) 112 (4.4) 142 (5.6) 128 (5.0) 131 (5.2) 131 (5.2) 118 (4.6) 82 (3.2) 87 (3.4) 97 (3.8) 102 (4.0) 118 (4.6)
Average precipitation days (≥ 1 mm) 10 13 13 12 14 13 11 13 8 12 9 11

Monthly sunshine hours in Blanchester, Ohio, United States §

The sunniest months in Blanchester are June, July and August, when the sun shines an average of 10 hours 41 minutes a day.Least sunny months in Blanchester: January, February and December receive an average of 4 hours 41 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Blanchester, 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 120 149 225 237 286 318 347 319 282 240 195 157
Mean daily daylight hours 9h 44m 10h 43m 11h 58m 13h 15m 14h 20m 14h 52m 14h 35m 13h 37m 12h 23m 11h 6m 10h 0m 9h 26m

Solar UV radiation in Blanchester, Ohio, United States §

Blanchester 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 Blanchester UV Index data.

Average daily maximum UV levels by month for Blanchester, 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