January weather forecast
Grand River, IA

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Weather in January

January, the same as December, in Grand River, Iowa, is another subzero cold winter month, with an average temperature varying between 30.6°F (-0.8°C) and 16.9°F (-8.4°C).

Temperature

In Grand River, the lowest average temperatures are observed in January, with a high of 30.6°F (-0.8°C) and a low of 16.9°F (-8.4°C).

Humidity

In Grand River, the average relative humidity in January is 80%.

Rainfall

The months with the least rainfall in Grand River are January and December Rain falls for 4.8 days and accumulates 0.67" (17mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall in Grand River. Snow falls for 8.6 days and accumulates 2.72" (69mm) of snow.

Daylight

In Grand River, the average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:40 am and sunset at 4:58 pm. On the last day of January, sunrise is at 7:27 am and sunset at 5:31 pm CST.

Sunshine

The month with the least sunshine in Grand River, Iowa, is January, with an average of 4.4h of sunshine.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: During January, 1 as the daily maximum UV index converts into the following advice:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What are the coldest months in Grand River?

The coldest month in Grand River is January, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 16.9°F (-8.4°C).

How cold is January in Grand River?

The high-temperature, in January, in Grand River, is 30.6°F (-0.8°C), while the low-temperature averages to 16.9°F (-8.4°C).

What is the average humidity in January in Grand River?

In January, the average relative humidity in Grand River, Iowa, is 80%.

What is the driest month in Grand River?

January and December are months with the least rain in Grand River, Iowa, when the rain falls for 4.8 days and typically aggregates up to 0.67" (17mm) of rain.

How much does it rain in Grand River in January?

In Grand River, in January, it is raining for 4.8 days, with typically 0.67" (17mm) of accumulated precipitation.

What is the snowiest month in Grand River?

January is the month with the most snowfall. Snow falls for 8.6 days and accumulates 2.72" (69mm) of snow.

How much does it snow in Grand River in January?

In Grand River, in January, during 8.6 snowfall days, 2.72" (69mm) of snow is typically accumulated.

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

The average day length in January in Grand River, Iowa, is 9h and 38min.

When is the sunrise / sunset in January in Grand River?

In January, on the first day of the month, sunrise is at 7:40 am and sunset at 4:58 pm. On the last day of the month, in Grand River, sunrise is at 7:27 am and sunset at 5:31 pm CST.

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

The month with the least sunshine in Grand River, Iowa, is January, with an average of 4.4h of sunshine.

How long on average sun shines in January in Grand River?

In January, the average sunshine duration in Grand River is 4.4h.

What is the month with the lowest UV index in Grand River?

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

What is the UV index intensity in January in Grand River?

In January, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
35.6°F 2°C
30.6°F -0.8°C
34.3°F 1.3°C
Average low temperature
23.4°F -4.8°C
16.9°F -8.4°C
19.8°F -6.8°C
Average pressure
30.12" 765mmHg
30.16" 766mmHg
30.14" 766mmHg
Average wind speed
9.9mph 15.9km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average max. wind speed
10.6mph 17.1km/h
11.1mph 17.9km/h
11.1mph 17.9km/h
Average wind speed gusts
15.9mph 25.6km/h
16.7mph 26.9km/h
16.4mph 26.4km/h
Average humidity
79%
80%
80%
Average rainfall
0.67" 17mm
0.67" 17mm
0.71" 18mm
Average rainfall days
5.7
4.8
5
Average snowfall
1.14" 29mm
2.72" 69mm
2.4" 61mm
Average snowfall days
5.9
8.6
8.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
4h 2min
5h 1min
Average sunshine days
20.3
19.1
15.9
Average UV index
2
1
2
Average cloud cover
47%
51%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Grand River, IA

Average temperature in January - Grand River, IA
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in January
Grand River, IA

Average pressure in January - Grand River, 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 (29.89"Hg).

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Average wind speed in January
Grand River, IA

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

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in January
Grand River, IA

Average humidity in January - Grand River, IA
  • Average humidity in January: 80%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Grand River, IA

Average rainfall in January - Grand River, IA
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").

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Average rainfall days in January
Grand River, IA

Average rainfall days in January - Grand River, IA
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in January
Grand River, IA

Average snowfall in January - Grand River, IA
  • Average snowfall in January: 2.72"

The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Grand River, IA

Average snowfall days in January - Grand River, IA
  • Average snowfall days in January: 8.6 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Grand River, IA

Average daylight in January / Average sunshine in January - Grand River, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days in January
Grand River, IA

Average sunshine days in January - Grand River, IA
  • Average sunshine days in January: 19.1 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in January
Grand River, IA

Average UV index in January - Grand River, 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).

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Average cloud cover in January
Grand River, IA

Average cloud cover in January - Grand River, IA
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Grand River, IA

Average visibility in January - Grand River, 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).

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Grand River, Iowa, USA

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