Monthly weather forecast and climate
Clewiston, FL

Weather in January

January, like December, is another pleasant winter month in Clewiston, Florida, with average temperature fluctuating between 72.3°F (22.4°C) and 56.1°F (13.4°C). The coldest month is January, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C). Weather in January »

Weather in February

February, the last month of the winter, in Clewiston, is a moderately hot month, with average temperature varying between 76.1°F (24.5°C) and 59°F (15°C). In February, the average high-temperature is essentially the same as in January - a moderately hot 76.1°F (24.5°C). Weather in February »

Weather in March

March, the first month of the spring, in Clewiston, is also a moderately hot month, with average temperature varying between 78.6°F (25.9°C) and 61.3°F (16.3°C). In Clewiston, the average high-temperature is relatively the same as in February - a still warm 78.6°F (25.9°C). Weather in March »

Weather in April

April, the same as March, is a moderately hot spring month in Clewiston, Florida, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 83.8°F (28.8°C). In Clewiston, Florida, the average high-temperature in April is almost the same as in March - a still warm 83.8°F (28.8°C). Weather in April »

Weather in May

The last month of the spring, May, is a hot month in Clewiston, Florida, with average temperature varying between 70.7°F (21.5°C) and 86.4°F (30.2°C). In Clewiston, the average high-temperature is practically the same as in April - a hot 86.4°F (30.2°C). Weather in May »

Weather in June

The first month of the summer, June, is also a hot month in Clewiston, Florida, with average temperature fluctuating between 74.3°F (23.5°C) and 88.3°F (31.3°C). In June, the average high-temperature is practically the same as in May - a still hot 88.3°F (31.3°C). Weather in June »

Weather in July

July, the same as June, in Clewiston, Florida, is another hot summer month, with average temperature fluctuating between 89.2°F (31.8°C) and 75.7°F (24.3°C). In July, the average high-temperature is almost the same as in June - a still tropical 89.2°F (31.8°C). Weather in July »

Weather in August

The last month of the summer, August, is another tropical month in Clewiston, Florida, with average temperature fluctuating between 89.6°F (32°C) and 76.5°F (24.7°C). August is the warmest month, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 76.5°F (24.7°C). In August, the average heat index is appraised at a blistering 111.9°F (44.4°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a tropical month in Clewiston, Florida, with temperature in the range of an average high of 87.4°F (30.8°C) and an average low of 74.7°F (23.7°C). In Clewiston, the average high-temperature in September is essentially the same as in August - a still hot 87.4°F (30.8°C). Weather in September »

Weather in October

October, like September, in Clewiston, Florida, is another warm autumn month, with average temperature fluctuating between 83.8°F (28.8°C) and 70.7°F (21.5°C). In Clewiston, the average high-temperature is practically the same as in September - a warm 83.8°F (28.8°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a moderately hot month in Clewiston, Florida, with average temperature ranging between max 78.8°F (26°C) and min 64°F (17.8°C). In November, the average high-temperature is essentially the same as in October - a still moderately hot 78.8°F (26°C). Weather in November »

Weather in December

December, the first month of the winter, in Clewiston, is still a warm month, with average temperature varying between 75.7°F (24.3°C) and 60.6°F (15.9°C). In December, the average high-temperature is essentially the same as in November - a still moderately hot 75.7°F (24.3°C). Weather in December »
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FAQ

What is the coldest month in Clewiston?

The coldest month is January, with an average high-temperature of 72.3°F (22.4°C) and an average low-temperature of 56.1°F (13.4°C).

How much does it rain in Clewiston?

Throughout the year, in Clewiston, there are 166.9 rainfall days, and 16.06" (408mm) of precipitation is accumulated.

What is the driest month in Clewiston?

January is the month with the least rainfall in Clewiston, Florida. Rain falls for 6.8 days and accumulates 0.43" (11mm) of precipitation.

When is the lowest UV index in Clewiston?

January, February and December, with an average maximum UV index of 5, are months with the lowest UV index.

What is the least humid month in Clewiston?

With an average relative humidity of 70%, March is the least humid month.

What are the months with the highest UV index in Clewiston?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Clewiston, Florida.

When are the longest days in Clewiston?

With an average of 13.8h of daylight, June has the longest days of the year.

What month has the most sunshine in Clewiston?

The month with the most sunshine in Clewiston is July, with an average of 10.8h of sunshine.

What is the warmest month in Clewiston?

August is the warmest month, with an average high-temperature of 89.6°F (32°C) and an average low-temperature of 76.5°F (24.7°C).

What is the rainiest month in Clewiston?

August is the month with the most rainfall. Rain falls for 22.3 days and accumulates 3.19" (81mm) of precipitation.

What is the most humid month in Clewiston?

The most humid month in Clewiston, Florida, is September, with an average relative humidity of 81%.

What is the month with the shortest days in Clewiston?

December has the shortest days of the year, with an average of 10.5h of daylight.

What is the month with the least sunshine in Clewiston?

The month with the least sunshine is December, with an average of 6.2h of sunshine.

Average temperature
Clewiston, FL

Average temperature - Clewiston, FL

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is January (72.3°F).

The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (56.1°F).

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Average pressure
Clewiston, FL

Average pressure - Clewiston, FL

The month with the highest atmospheric pressure is January (30.12").
The month with the lowest atmospheric pressure is September (29.95").

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Average wind speed
Clewiston, FL

Average wind speed - Clewiston, FL

The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average rainfall
Clewiston, FL

Average rainfall - Clewiston, FL

The wettest month (with the highest rainfall) is August (3.19").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days
Clewiston, FL

Average rainfall days - Clewiston, FL

The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is January (6.8 days).

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Average daylight / Average sunshine
Clewiston, FL

Average daylight / Average sunshine - Clewiston, FL

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is December (Average sunshine: 6.2h).

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Average sunshine days
Clewiston, FL

Average sunshine days - Clewiston, FL

The month with the most sunshine days is January (20.3 days).
The month with the least sunshine days is August (4.3 days).

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Average UV index
Clewiston, FL

Average UV index - Clewiston, FL

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January, February and December (UV index 5).

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Average cloud cover
Clewiston, FL

Average cloud cover - Clewiston, FL

Months with the most cloud cover are January, November and December (Cloud cover 34).
Months with the least cloud cover are March, April and May (Cloud cover 29).

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Average visibility
Clewiston, FL

Average visibility - Clewiston, FL

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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