January weather forecast
Grand Island, FL

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Weather in January

January, like December, in Grand Island, Florida, is another comfortable winter month, with temperature in the range of an average low of 49.5°F (9.7°C) and an average high of 67.5°F (19.7°C).

Temperature

Grand Island's January weather, marked by an average high temperature of 67.5°F (19.7°C) and an average low temperature of 49.5°F (9.7°C), is the coldest in the year.

Humidity

The average relative humidity in January is 72%.

Rainfall

In January, in Grand Island, the rain falls for 9.2 days. Throughout January, 1.46" (37mm) of precipitation is accumulated. Throughout the year, there are 193.1 rainfall days, and 35.71" (907mm) of precipitation is accumulated.

Daylight

In January, the average length of the day in Grand Island is 10h and 33min.
On the first day of the month, sunrise is at 7:20 am and sunset at 5:40 pm. On the last day of January, sunrise is at 7:15 am and sunset at 6:04 pm EST.

Sunshine

In January, the average sunshine is 6.4h.

UV index

January is the month with the lowest UV index in Grand Island, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 4 in January translates into the following recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. Around midday, solar radiation is most harmful; hence, exposure should be limited. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Grand Island?

January, on average, is the coldest month in Grand Island, Florida, registering a high temperature of 67.5°F (19.7°C) and a low of 49.5°F (9.7°C).

What is the temperature in January in Grand Island?

The high-temperature, in January, in Grand Island, records 67.5°F (19.7°C), while the low-temperature is 49.5°F (9.7°C).

What is the average humidity in January in Grand Island?

In January, the average relative humidity in Grand Island is 72%.

How many days does it rain in January in Grand Island?

In January, the rain falls for 9.2 days. Throughout January, 1.46" (37mm) of precipitation is accumulated.

How many hours of daylight does Grand Island have in January?

In Grand Island, Florida, the average day length in January is 10h and 33min.

What time are sunrise and sunset in January in Grand Island?

On the first day of January in Grand Island, sunrise is at 7:20 am and sunset at 5:40 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:04 pm EST.

How many hours of sunshine does Grand Island have in January?

The average sunshine duration in January in Grand Island, Florida, is 6.4h.

When is the lowest UV index in Grand Island?

January is the month with the lowest UV index, with an average maximum UV index of 4.

What is the UV index reading in January in Grand Island?

In Grand Island, Florida, the average daily maximum UV index in January is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Grand Island, FL

Average temperature in January - Grand Island, FL
  • Average high temperature in January: 67.5°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 January: 49.5°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 January
Grand Island, FL

Average pressure in January - Grand Island, FL
  • Average pressure in January: 30.14"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 January
Grand Island, FL

Average wind speed in January - Grand Island, FL
  • Average wind speed in January: 6.1mph

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 January
Grand Island, FL

Average humidity in January - Grand Island, FL
  • Average humidity in January: 72%

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 January
Grand Island, FL

Average rainfall in January - Grand Island, FL
  • Average rainfall in January: 1.46"

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 January
Grand Island, FL

Average rainfall days in January - Grand Island, FL
  • Average rainfall days in January: 9.2 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 January /
Average sunshine in January
Grand Island, FL

Average daylight in January / Average sunshine in January - Grand Island, FL
  • Average daylight in January: 10h and 3min

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 January: 6h and 2min

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 January
Grand Island, FL

Average sunshine days in January - Grand Island, FL
  • Average sunshine days in January: 19 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 January
Grand Island, FL

Average UV index in January - Grand Island, FL
  • Average UV index in January: 4

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 January
Grand Island, FL

Average cloud cover in January - Grand Island, FL
  • Average cloud cover in January: 36

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 January
Grand Island, FL

Average visibility in January - Grand Island, FL
  • Average visibility in January: 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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