January weather forecast
Rockford, MI

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Weather in January

January, like December, is a freezing cold winter month in Rockford, Michigan, with an average temperature fluctuating between 18°F (-7.8°C) and 27.3°F (-2.6°C).

Temperature

In Rockford, January is the month with the lowest recorded average temperatures, measuring a high of 27.3°F (-2.6°C) and a low of 18°F (-7.8°C).

Humidity

With an average relative humidity of 88%, January is the most humid month.

Rainfall

In January, the rain falls for 6.8 days. Throughout January, 1.26" (32mm) of precipitation is accumulated. In Rockford, during the entire year, the rain falls for 135.2 days and collects up to 18.19" (462mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 19.5 days and accumulates 4.69" (119mm) 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 5:17 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:52 pm EST.

Sunshine

January has the least sunshine of the year, with an average of 2.3h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 1 in January transforms into this advice:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Aug 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

January stands out as Rockford's coldest month, with an average high-temperature of 27.3°F (-2.6°C) and a low-temperature of 18°F (-7.8°C).

How cold is it in Rockford in January?

During January, Rockford experiences an average high-temperature of 27.3°F (-2.6°C) and a low-temperature of 18°F (-7.8°C).

What is the most humid month in Rockford?

With an average relative humidity of 88%, January is the most humid month.

What is the average humidity in January?

In January, the average relative humidity in Rockford, Michigan, is 88%.

How much does it rain in January?

In Rockford, Michigan, in January, it is raining for 6.8 days, with typically 1.26" (32mm) of accumulated precipitation.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 19.5 days and typically aggregates up to 4.69" (119mm) of snow.

How much does it snow in January?

In Rockford, in January, during 19.5 snowfall days, 4.69" (119mm) of snow is typically accumulated.

How many hours of daylight does Rockford have in January?

In January, the average day length is 9h and 26min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 8:13 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 5:52 pm EST.

What is the month with the least sunshine?

January has the least sunshine of the year in Rockford, Michigan, with an average of 2.3h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 2.3h.

When is the lowest UV index?

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Rockford, MI

Average temperature in January - Rockford, MI
  • Average high temperature in January: 27.3°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in January: 18°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in January
Rockford, MI

Average pressure in January - Rockford, 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
Rockford, MI

Average wind speed in January - Rockford, MI
  • Average wind speed in January: 9.4mph

The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in January
Rockford, MI

Average humidity in January - Rockford, MI
  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (74%).

Average rainfall in January
Rockford, MI

Average rainfall in January - Rockford, MI
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is October (2.24").
The driest months (with the least rainfall) are February and September (1.1").

Average rainfall days in January
Rockford, MI

Average rainfall days in January - Rockford, MI
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is October (15.9 days).
The month with the least rainy days is February (5.9 days).

Average snowfall in January
Rockford, MI

Average snowfall in January - Rockford, MI
  • Average snowfall in January: 4.69"

The month with the highest snowfall is January (4.69").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Rockford, MI

Average snowfall days in January - Rockford, MI
  • Average snowfall days in January: 19.5 days

The month with the highest number of snowfall days is January (19.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Rockford, MI

Average daylight in January / Average sunshine in January - Rockford, 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
Rockford, MI

Average sunshine days in January - Rockford, MI
  • Average sunshine days in January: 8.8 days

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (8.5 days).

Average UV index in January
Rockford, MI

Average UV index in January - Rockford, MI
  • Average UV index in January: 1

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

Average cloud cover in January
Rockford, MI

Average cloud cover in January - Rockford, 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 31).

Average visibility in January
Rockford, MI

Average visibility in January - Rockford, MI
  • Average visibility in January: 4mi

The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).

Rockford, Michigan, USA

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