Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
Temperature records mark January as the coldest month, with highs averaging 30.6°F (-0.8°C) and lows at 16.9°F (-8.4°C).Humidity
In Grand River, Iowa, the average relative humidity in January is 80%.Rainfall
January and December are months with the least rain when the rain falls for 4.8 days and typically aggregates up to 0.67" (17mm) of rain.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall in Grand River is January, when snow falls for 8.6 days and typically aggregates up to 2.72" (69mm) of snow.Daylight
In January, the average length of the day is 9h and 38min.On the first day of January, sunrise is at 7:40 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:31 pm CST.
Sunshine
January has the least sunshine of the year, 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 value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 1 in January suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the coldest?
How cold is it in January?
What is the average humidity in January in Grand River?
What is the driest month in Grand River?
How many days does it rain in January?
When does it snow the most?
How much does it snow in January?
What is the average length of the day in January?
What time are sunrise and sunset in January?
What is the month with the least sunshine in Grand River?
How many hours of sunshine does Grand River have in January?
What is the month with the lowest UV index?
How high is the UV index in January?
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).
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).
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).
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%).
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").
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).
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").
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).
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).
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).
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).
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).
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).
Grand River, Iowa, USA
Weather forecast for your location
2. Allow the app to use your location