Grand Island
Florida, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Grand Island, FL

January, the same as December, is another enjoyable winter month in Grand Island, Florida, with average temperature fluctuating between 49.5°F (9.7°C) and 67.5°F (19.7°C). The coldest month is January, with an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 49.5°F (9.7°C). Weather in January »

The last month of the winter, February, is an agreeable month in Grand Island, Florida, with average temperature ranging between max 71.6°F (22°C) and min 53.4°F (11.9°C). In Grand Island, the average high-temperature in February is almost the same as in January - a pleasant 71.6°F (22°C). Weather in February »

March, the first month of the spring, in Grand Island, is a warm month, with average temperature fluctuating between 75.7°F (24.3°C) and 56.5°F (13.6°C). In March, the average high-temperature is relatively the same as in February - a warm 75.7°F (24.3°C). Weather in March »

April, like March, in Grand Island, Florida, is another warm spring month, with average temperature fluctuating between 82.2°F (27.9°C) and 63.1°F (17.3°C). In Grand Island, the average high-temperature marginally rises, from 75.7°F (24.3°C) in March, to a still moderately hot 82.2°F (27.9°C). Weather in April »

The last month of the spring, May, is a hot month in Grand Island, Florida, with temperature in the range of an average low of 68°F (20°C) and an average high of 86.2°F (30.1°C). In May, the average high-temperature is relatively the same as in April - a tropical 86.2°F (30.1°C). Weather in May »

The first month of the summer, June, is still a tropical month in Grand Island, Florida, with average temperature varying between 89.2°F (31.8°C) and 73.6°F (23.1°C). In Grand Island, the average high-temperature is practically the same as in May - a still hot 89.2°F (31.8°C). Weather in June »

July, like June, is another hot summer month in Grand Island, Florida, with average temperature ranging between max 90.7°F (32.6°C) and min 74.8°F (23.8°C). In Grand Island, the average high-temperature in July is almost the same as in June - a still tropical 90.7°F (32.6°C). Weather in July »

August, the last month of the summer, in Grand Island, is another hot month, with average temperature varying between 75.7°F (24.3°C) and 90.9°F (32.7°C). With an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 75.7°F (24.3°C), August is the warmest month. In August, the average heat index is evaluated at a life-threatening hot 114.8°F (46°C). Weather in August »

September, the first month of the autumn, in Grand Island, is still a hot month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 88.5°F (31.4°C). In September, the average high-temperature is relatively the same as in August - a still hot 88.5°F (31.4°C). Weather in September »

October, like September, in Grand Island, Florida, is a moderately hot autumn month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 67.1°F (19.5°C). In Grand Island, the average high-temperature slightly decreases, from a tropical 88.5°F (31.4°C) in September, to a warm 82.9°F (28.3°C). Weather in October »

November, the last month of the autumn, in Grand Island, is also a moderately hot month, with average temperature ranging between min 58.5°F (14.7°C) and max 75.4°F (24.1°C). In Grand Island, the average high-temperature in November marginally drops, from a moderately hot 82.9°F (28.3°C) in October, to a still warm 75.4°F (24.1°C). Weather in November »

The first month of the winter, December, is still a pleasant month in Grand Island, Florida, with temperature in the range of an average low of 54.5°F (12.5°C) and an average high of 71.4°F (21.9°C). In December, the average high-temperature is practically the same as in November - an agreeable 71.4°F (21.9°C). Weather in December »

What is the coldest month in Grand Island?

January is the coldest month, with an average high-temperature of 67.5°F (19.7°C) and an average low-temperature of 49.5°F (9.7°C).

How many days does it rain in Grand Island?

In Grand Island, during the entire year, the rain falls for 193.1 days and collects up to 35.71" (907mm) of precipitation.

When is the lowest UV index in Grand Island?

The month with the lowest UV index in Grand Island is January, with an average maximum UV index of 4.

What is the least humid month in Grand Island?

March is the least humid month, with an average relative humidity of 71%.

What is the driest month in Grand Island?

March and November are months with the least rain in Grand Island when the rain falls for 11.3 days and typically aggregates up to 1.26" (32mm) of rain.

What are the months with the most sunshine in Grand Island?

May and July, with an average of 10.7h of sunshine, are months with the most sunshine in Grand Island, Florida.

What are the months with the highest UV index in Grand Island?

Months with the highest UV index in Grand Island, Florida, are May through August, with an average maximum UV index of 7.

When are the longest days in Grand Island?

June has the longest days of the year in Grand Island, Florida, with an average of 14h of daylight.

What is the most humid month in Grand Island?

Months with the highest humidity are July through September, with an average relative humidity of 78%.

What is the wettest month in Grand Island?

July is the month with the most rainfall. Rain falls for 26.9 days and accumulates 5.91" (150mm) of precipitation.

What is the warmest month in Grand Island?

August is the warmest month, with an average high-temperature of 90.9°F (32.7°C) and an average low-temperature of 75.7°F (24.3°C).

What is the month with the shortest days in Grand Island?

The month with the shortest days is December, with an average of 10.3h of daylight.

What is the month with the least sunshine in Grand Island?

With an average of 6.1h of sunshine, December has the least sunshine of the year in Grand Island, Florida.
Average temperature - Grand Island, FL
Average humidity - Grand Island, FL
Average rainfall - Grand Island, FL

The wettest month (with the highest rainfall) is July (5.91").
The driest months (with the least rainfall) are March and November (1.26").

Average rainfall days - Grand Island, FL

The month with the highest number of rainy days is July (26.9 days).
The month with the least rainy days is January (9.2 days).

Average daylight / Average sunshine - Grand Island, FL

The month with the longest days is June (Average daylight: 14h).
The month with the shortest days is December (Average daylight: 10.3h).

Months with the most sunshine are May and July (Average sunshine: 10.7h).
The month with the least sunshine is December (Average sunshine: 6.1h).