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Monthly climate in Westlake, Ohio, United States

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Westlake features a humid continental climate (Dfa).Temperatures typically range between -1 °C (30 °F) and 24 °C (76 °F) through the year, but rarely can drop to -20 °C (-5 °F) or can rise to as high as 33 °C (91 °F).The average annual precipitation amounts to about 1183 mm (46.6 inches) and receives 159 rainy days on the 1 mm (0.04 inches) threshold annually.Westlake enjoys an average of 2966 hours of sunshine throughout the year, and daylight varies from 9 hours 12 minutes to 15 hours 6 minutes per day.

Monthly average temperatures in Westlake, Ohio, United States §

The warmest months in Westlake are June, July and August, with daily mean temperatures ranging from 21 to 24 °C (70 - 76 °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 - 36 °F) throughout the day. On average each year, Westlake experiences 59 days above 25 °C (77.0 °F) and 73 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Westlake, 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 16°C
(61°F)		 19°C
(66°F)		 19°C
(67°F)		 24°C
(76°F)		 29°C
(84°F)		 32°C
(89°F)		 33°C
(91°F)		 31°C
(88°F)		 31°C
(88°F)		 29°C
(84°F)		 23°C
(73°F)		 15°C
(60°F)
Mean maximum 12°C
(54°F)		 14°C
(57°F)		 17°C
(64°F)		 22°C
(72°F)		 28°C
(82°F)		 30°C
(87°F)		 31°C
(89°F)		 30°C
(86°F)		 30°C
(85°F)		 27°C
(80°F)		 19°C
(66°F)		 14°C
(57°F)
Average high 2°C
(36°F)		 3°C
(38°F)		 7°C
(45°F)		 12°C
(54°F)		 19°C
(66°F)		 24°C
(75°F)		 27°C
(80°F)		 26°C
(79°F)		 23°C
(74°F)		 18°C
(64°F)		 9°C
(48°F)		 5°C
(41°F)
Daily mean -1°C
(30°F)		 -0°C
(32°F)		 3°C
(38°F)		 9°C
(48°F)		 15°C
(60°F)		 21°C
(70°F)		 24°C
(76°F)		 23°C
(74°F)		 20°C
(69°F)		 14°C
(58°F)		 6°C
(43°F)		 2°C
(36°F)
Average low -3°C
(26°F)		 -3°C
(27°F)		 0°C
(33°F)		 6°C
(42°F)		 12°C
(54°F)		 18°C
(65°F)		 21°C
(71°F)		 21°C
(69°F)		 17°C
(63°F)		 12°C
(53°F)		 4°C
(39°F)		 0°C
(32°F)
Mean minimum -13°C
(8°F)		 -12°C
(11°F)		 -7°C
(20°F)		 -1°C
(31°F)		 5°C
(41°F)		 13°C
(56°F)		 18°C
(64°F)		 16°C
(62°F)		 12°C
(53°F)		 5°C
(42°F)		 -2°C
(28°F)		 -7°C
(19°F)
Minimum -20°C
(-5°F)		 -19°C
(-2°F)		 -12°C
(11°F)		 -3°C
(28°F)		 1°C
(34°F)		 10°C
(51°F)		 16°C
(62°F)		 16°C
(60°F)		 9°C
(49°F)		 4°C
(39°F)		 -5°C
(23°F)		 -13°C
(9°F)

Compare climate in Westlake with other places

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

Monthly average precipitation in Westlake, Ohio, United States §

Westlake usually has the most precipitation in May, June and July, with an average of 13 rainy days and 120 mm (4.7 inches) of precipitation per month.The driest months in Westlake are January, February and September. On average, 81 mm (3.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Westlake, 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) 80 (3.2) 85 (3.4) 86 (3.4) 112 (4.4) 122 (4.8) 113 (4.4) 124 (4.9) 88 (3.5) 79 (3.1) 107 (4.2) 99 (3.9) 87 (3.4)
Average precipitation days (≥ 1 mm) 12 14 13 15 15 14 12 13 9 16 12 14

Monthly sunshine hours in Westlake, Ohio, United States §

The sunniest months in Westlake are June, July and August, when the sun shines an average of 11 hours 20 minutes a day.Least sunny months in Westlake: January, February and December receive an average of 4 hours 29 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Westlake, 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 108 161 243 259 302 344 360 338 296 234 177 139
Mean daily daylight hours 9h 33m 10h 37m 11h 58m 13h 21m 14h 31m 15h 6m 14h 47m 13h 45m 12h 25m 11h 2m 9h 49m 9h 12m

Solar UV radiation in Westlake, Ohio, United States §

Westlake 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, 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 Westlake UV Index data.

Average daily maximum UV levels by month for Westlake, 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 4 6 8 10 10 10 9 8 6 4 2