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
Grand Rapids's coldest temperatures are experienced in January, with average high temperatures of 27.7°F (-2.4°C) and lows of 18.7°F (-7.4°C).Humidity
January is the most humid month, with an average relative humidity of 87%.Rainfall
In Grand Rapids, in January, during 4.2 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. Throughout the year, there are 103.5 rainfall days, and 9.02" (229mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 11.5 days and accumulates 1.57" (40mm) of snow.Daylight
The average length of the day in January is 9h and 26min.On the first day of January, sunrise is at 8:13 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:53 pm EST.
Sunshine
January has the least sunshine of the year, with an average of 2.3h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In January, the maximum UV index of 1 suggests this advice:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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 Grand Rapids in January?
What is the most humid month?
What is the average humidity in January?
How much does it rain in January?
What is the snowiest month?
How much does it snow in January?
What is the average length of the day in January in Grand Rapids?
When are sunrise and sunset in January?
What is the month with the least sunshine?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Grand Rapids, MI
- Average high temperature in January: 27.7°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (27.7°F).
- Average low temperature in January: 18.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in January
Grand Rapids, MI
- Average pressure in January: 30.07"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Grand Rapids, MI
- Average wind speed in January: 9.6mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in January
Grand Rapids, MI
- Average humidity in January: 87%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in January
Grand Rapids, MI
- Average rainfall in January: 0.55"
The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in January
Grand Rapids, MI
- Average rainfall days in January: 4.2 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in January
Grand Rapids, MI
- Average snowfall in January: 1.57"
The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in January
Grand Rapids, MI
- Average snowfall days in January: 11.5 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in January /
Average sunshine in January
Grand Rapids, MI
- Average daylight in January: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January: 2h 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: 2h and 18min).
Average sunshine days in January
Grand Rapids, MI
- Average sunshine days in January: 17.8 days
The month with the most sunshine days is September (21 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in January
Grand Rapids, MI
- Average UV index in January: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Grand Rapids, MI
- Average cloud cover in January: 75
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in January
Grand Rapids, MI
- Average visibility in January: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Grand Rapids, Michigan, USA
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