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Monthly climate in Bethesda, Ohio, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Bethesda features a humid subtropical climate (Cfa).Temperatures typically range between 0 °C (32 °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 1449 mm (57.0 inches) and receives 155 rainy days on the 1 mm (0.04 inches) threshold annually.Bethesda enjoys an average of 2753 hours of sunshine throughout the year, and daylight varies from 9 hours 21 minutes to 14 hours 57 minutes per day.

Monthly average temperatures in Bethesda, Ohio, United States §

The warmest months in Bethesda are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (71 - 75 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 0 to 3 °C (32 - 37 °F) throughout the day. On average each year, Bethesda experiences 93 days above 25 °C (77.0 °F) and 85 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Bethesda, 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
(71°F)		 25°C
(78°F)		 25°C
(77°F)		 29°C
(84°F)		 31°C
(88°F)		 33°C
(91°F)		 34°C
(94°F)		 33°C
(92°F)		 34°C
(94°F)		 33°C
(91°F)		 26°C
(78°F)		 18°C
(65°F)
Mean maximum 16°C
(61°F)		 20°C
(68°F)		 23°C
(74°F)		 27°C
(80°F)		 30°C
(86°F)		 32°C
(89°F)		 33°C
(91°F)		 32°C
(91°F)		 32°C
(89°F)		 29°C
(84°F)		 22°C
(71°F)		 17°C
(62°F)
Average high 4°C
(39°F)		 7°C
(44°F)		 11°C
(52°F)		 16°C
(62°F)		 22°C
(72°F)		 26°C
(79°F)		 29°C
(84°F)		 28°C
(82°F)		 25°C
(78°F)		 19°C
(67°F)		 10°C
(51°F)		 6°C
(44°F)
Daily mean -0°C
(32°F)		 2°C
(36°F)		 6°C
(43°F)		 11°C
(52°F)		 17°C
(63°F)		 21°C
(71°F)		 24°C
(75°F)		 23°C
(73°F)		 20°C
(68°F)		 14°C
(58°F)		 6°C
(43°F)		 3°C
(37°F)
Average low -4°C
(25°F)		 -2°C
(28°F)		 1°C
(34°F)		 6°C
(43°F)		 12°C
(55°F)		 17°C
(62°F)		 19°C
(67°F)		 18°C
(65°F)		 15°C
(60°F)		 10°C
(50°F)		 2°C
(35°F)		 -1°C
(31°F)
Mean minimum -17°C
(2°F)		 -14°C
(7°F)		 -9°C
(16°F)		 -3°C
(28°F)		 3°C
(37°F)		 10°C
(51°F)		 14°C
(57°F)		 13°C
(55°F)		 9°C
(48°F)		 2°C
(35°F)		 -6°C
(22°F)		 -10°C
(14°F)
Minimum -24°C
(-11°F)		 -20°C
(-3°F)		 -13°C
(8°F)		 -5°C
(24°F)		 -2°C
(29°F)		 7°C
(45°F)		 13°C
(56°F)		 10°C
(51°F)		 5°C
(42°F)		 -2°C
(29°F)		 -9°C
(16°F)		 -16°C
(4°F)

Compare climate in Bethesda with other places

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

Monthly average precipitation in Bethesda, Ohio, United States §

Bethesda usually has the most precipitation in April, May and June, with an average of 15 rainy days and 150 mm (5.9 inches) of precipitation per month.The driest months in Bethesda are January, August and November. On average, 93 mm (3.7 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Bethesda, 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) 93 (3.7) 121 (4.8) 119 (4.7) 142 (5.6) 141 (5.6) 165 (6.5) 133 (5.2) 95 (3.7) 114 (4.5) 120 (4.7) 92 (3.6) 114 (4.5)
Average precipitation days (≥ 1 mm) 10 14 13 15 16 15 14 14 9 13 10 12

Monthly sunshine hours in Bethesda, Ohio, United States §

The sunniest months in Bethesda are June, July and August, when the sun shines an average of 10 hours 21 minutes a day.Least sunny months in Bethesda: January, February and December receive an average of 4 hours 14 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Bethesda, 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 107 139 225 235 268 300 337 315 275 227 180 138
Mean daily daylight hours 9h 40m 10h 41m 11h 58m 13h 17m 14h 24m 14h 57m 14h 39m 13h 40m 12h 24m 11h 5m 9h 56m 9h 21m

Solar UV radiation in Bethesda, Ohio, United States §

Bethesda 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 Bethesda UV Index data.

Average daily maximum UV levels by month for Bethesda, 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