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Monthly climate in Clewiston, Florida, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Clewiston features a tropical monsoon climate (Am). Temperatures typically range between 19 °C (66 °F) and 28 °C (83 °F) through the year, but rarely can drop to 3 °C (38 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1407 mm (55.4 inches) and receives 158 rainy days on the 1 mm (0.04 inches) threshold annually. Clewiston enjoys an average of 3521 hours of sunshine throughout the year, and daylight varies from 10 hours 28 minutes to 13 hours 46 minutes per day.

Monthly average temperatures in Clewiston, Florida, United States §

The warmest months in Clewiston are July, August and September, with daily mean temperatures ranging from 28 to 28 °C (83 - 83 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 19 to 22 °C (66 - 71 °F) throughout the day. On average each year, Clewiston experiences 269 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Clewiston, Florida, 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 30°C
(86°F)		 31°C
(89°F)		 32°C
(90°F)		 34°C
(94°F)		 34°C
(94°F)		 35°C
(95°F)		 35°C
(95°F)		 35°C
(95°F)		 34°C
(94°F)		 33°C
(91°F)		 32°C
(89°F)		 31°C
(88°F)
Mean maximum 29°C
(84°F)		 30°C
(86°F)		 31°C
(88°F)		 33°C
(91°F)		 33°C
(93°F)		 33°C
(92°F)		 34°C
(94°F)		 34°C
(93°F)		 34°C
(93°F)		 32°C
(90°F)		 30°C
(86°F)		 29°C
(85°F)
Average high 23°C
(74°F)		 26°C
(79°F)		 27°C
(80°F)		 29°C
(84°F)		 30°C
(87°F)		 31°C
(88°F)		 32°C
(90°F)		 32°C
(90°F)		 31°C
(89°F)		 30°C
(86°F)		 26°C
(80°F)		 24°C
(76°F)
Daily mean 19°C
(66°F)		 22°C
(71°F)		 22°C
(72°F)		 25°C
(77°F)		 26°C
(80°F)		 28°C
(82°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(83°F)		 27°C
(80°F)		 23°C
(74°F)		 20°C
(69°F)
Average low 15°C
(59°F)		 18°C
(64°F)		 18°C
(65°F)		 21°C
(70°F)		 23°C
(74°F)		 25°C
(77°F)		 26°C
(78°F)		 26°C
(79°F)		 25°C
(78°F)		 24°C
(76°F)		 20°C
(68°F)		 17°C
(62°F)
Mean minimum 5°C
(41°F)		 8°C
(47°F)		 10°C
(50°F)		 14°C
(58°F)		 19°C
(67°F)		 23°C
(73°F)		 24°C
(75°F)		 24°C
(75°F)		 23°C
(74°F)		 19°C
(67°F)		 13°C
(56°F)		 9°C
(48°F)
Minimum 3°C
(38°F)		 5°C
(41°F)		 8°C
(46°F)		 12°C
(54°F)		 17°C
(62°F)		 22°C
(72°F)		 23°C
(74°F)		 24°C
(75°F)		 21°C
(71°F)		 12°C
(54°F)		 9°C
(48°F)		 7°C
(44°F)

Compare climate in Clewiston with other places

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

Monthly average precipitation in Clewiston, Florida, United States §

Clewiston usually has the most precipitation in June, July and August, with an average of 26 rainy days and 239 mm (9.4 inches) of precipitation per month. The driest months in Clewiston are January, March and December. On average, 30 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Clewiston, Florida, 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) 33 (1.3) 36 (1.4) 21 (0.8) 57 (2.2) 146 (5.8) 243 (9.6) 211 (8.3) 262 (10.3) 200 (7.9) 119 (4.7) 43 (1.7) 35 (1.4)
Average precipitation days (≥ 1 mm) 4 5 1 6 13 24 27 28 23 15 8 4

Monthly sunshine hours in Clewiston, Florida, United States §

The sunniest months in Clewiston are April, July and August, when the sun shines an average of 10 hours 26 minutes a day. Least sunny months in Clewiston: January, February and November receive an average of 8 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Clewiston, Florida, 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 216 268 317 321 316 289 322 317 300 297 272 280
Mean daily daylight hours 10h 39m 11h 15m 12h 1m 12h 48m 13h 27m 13h 46m 13h 36m 13h 1m 12h 16m 11h 29m 10h 48m 10h 28m

Solar UV radiation in Clewiston, Florida, United States §

Clewiston experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 12 - 12, which corresponds to the Extreme category of sun exposure. January, November and December are in the Moderate / High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Clewiston UV Index data.

Average daily maximum UV levels by month for Clewiston, Florida, 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) 6 9 10 12 12 12 12 12 11 10 7 5

Detailed Monthly Weather Insights for Clewiston, Florida, United States

Discover in-depth weather details for every month in Clewiston. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Clewiston's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.