Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With the advent of December, Grand Island's high-temperatures adjust to a pleasant 71.4°F (21.9°C), closely aligning with the preceding month. Grand Island, during the month of December, experiences an average low-temperature of 54.5°F (12.5°C).Humidity
In Grand Island, Florida, the average relative humidity in December is 77%.Rainfall
In Grand Island, in December, during 10.5 rainfall days, 2.17" (55mm) of precipitation is typically accumulated. Throughout the year, in Grand Island, Florida, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 5:29 pm. On the last day of December, sunrise is at 7:20 am and sunset at 5:40 pm EST.
Sunshine
The month with the least sunshine is December, with an average of 6.1h of sunshine.UV index
In Grand Island, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 5 in December transforms into this advice:
Take necessary precautions - Defending against sun damage is advocated. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grand Island in December?
What is the average humidity in December in Grand Island?
How many days does it rain in December in Grand Island?
What is the month with the shortest days in Grand Island?
How many hours of daylight does Grand Island have in December?
When is the sunrise / sunset in December in Grand Island?
What is the month with the least sunshine in Grand Island?
How many hours of sunshine does Grand Island have in December?
What is the UV index intensity in December in Grand Island?
Average temperature in December
Grand Island, FL
- Average high temperature in December: 71.4°F
The warmest month (with the highest average high temperature) is August (90.9°F).
The month with the lowest average high temperature is January (67.5°F).
- Average low temperature in December: 54.5°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (49.5°F).
Average pressure in December
Grand Island, FL
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in December
Grand Island, FL
- Average wind speed in December: 5.7mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Grand Island, FL
- Average humidity in December: 77%
The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in December
Grand Island, FL
- Average rainfall in December: 2.17"
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 in December
Grand Island, FL
- Average rainfall days in December: 10.5 days
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 in December /
Average sunshine in December
Grand Island, FL
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 6h and 1min
The months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in December
Grand Island, FL
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is January (19 days).
The month with the least sunshine days is August (2.1 days).
Average UV index in December
Grand Island, FL
- Average UV index in December: 5
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in December
Grand Island, FL
- Average cloud cover in December: 37
The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in December
Grand Island, FL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Grand Island, Florida, USA
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