January weather forecast
Grant, IA

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Weather in January

January, like December, is another subzero cold winter month in Grant, Iowa, with an average temperature varying between 16°F (-8.9°C) and 29.3°F (-1.5°C).

Temperature

January, with an average high of 29.3°F (-1.5°C) and a low of 16°F (-8.9°C), signifies the coldest month of the year.

Humidity

The months with the highest humidity in Grant are January and June, with an average relative humidity of 81%.

Rainfall

In Grant, in January, during 3.8 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Grant, during the entire year, the rain falls for 115.1 days and collects up to 19.21" (488mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 8.4 days and accumulates 2.28" (58mm) of snow.

Daylight

In January, the average length of the day is 9h and 37min.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:01 pm. On the last day of January, sunrise is at 7:31 am and sunset at 5:34 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.4h of sunshine.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum UV index of 1 in January translates into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Temperature records mark January as the coldest month, with highs averaging 29.3°F (-1.5°C) and lows at 16°F (-8.9°C).

How cold is it in January?

In Grant, in January, the average high-temperature is 29.3°F (-1.5°C), and the average low-temperature is 16°F (-8.9°C).

What are the most humid months?

January and June, with an average relative humidity of 81%, are most humid months.

What is the average humidity in January?

In January, the average relative humidity is 81%.

How much does it rain in January?

In Grant, during January, the rain falls for 3.8 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 8.4 days and accumulates 2.28" (58mm) of snow.

How much does it snow in January?

In Grant, in January, during 8.4 snowfall days, 2.28" (58mm) of snow is typically accumulated.

How many hours of daylight does Grant have in January?

The average day length in January in Grant is 9h and 37min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:45 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 5:34 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.4h of sunshine.

How long on average sun shines in January in Grant?

The average sunshine duration in January is 4.4h.

When is the lowest UV index?

The month with the lowest UV index is January, with an average maximum UV index of 1.

What is the UV index reading in January?

The average daily maximum UV index in January in Grant is 1. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Grant, IA

Average temperature in January - Grant, IA
  • Average high temperature in January: 29.3°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in January: 16°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in January
Grant, IA

Average pressure in January - Grant, IA
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in January
Grant, IA

Average wind speed in January - Grant, IA
  • Average wind speed in January: 10.4mph

The windiest months (with the highest average wind speed) are March and April (10.5mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in January
Grant, IA

Average humidity in January - Grant, IA
  • Average humidity in January: 81%

The months with the highest relative humidity are January and June (81%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Grant, IA

Average rainfall in January - Grant, IA
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is February (0.51").

Average rainfall days in January
Grant, IA

Average rainfall days in January - Grant, IA
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is February (3 days).

Average snowfall in January
Grant, IA

Average snowfall in January - Grant, IA
  • Average snowfall in January: 2.28"

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Grant, IA

Average snowfall days in January - Grant, IA
  • Average snowfall days in January: 8.4 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Grant, IA

Average daylight in January / Average sunshine in January - Grant, IA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 4h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in January
Grant, IA

Average sunshine days in January - Grant, IA
  • Average sunshine days in January: 20.3 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is May (12 days).

Average UV index in January
Grant, IA

Average UV index in January - Grant, IA
  • Average UV index in January: 1

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in January
Grant, IA

Average cloud cover in January - Grant, IA
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).

Average visibility in January
Grant, IA

Average visibility in January - Grant, IA
  • 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).

Grant, Iowa, USA

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