January weather forecast
Rochester, MI

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Weather in January

January, like December, is a freezing cold winter month in Rochester, Michigan, with an average temperature ranging between max 28°F (-2.2°C) and min 17.8°F (-7.9°C).

Temperature

January, marked by an average high-temperature of 28°F (-2.2°C) and a low-temperature of 17.8°F (-7.9°C), is the coldest month.

Humidity

January and February, with an average relative humidity of 86%, are the most humid months in Rochester.

Rainfall

In Rochester, in January, during 6.4 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. In Rochester, during the entire year, the rain falls for 146.2 days and collects up to 18.5" (470mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Rochester, in January, snow falls for 15.7 days, with typically accumulated 3.15" (80mm) of snow. In Rochester, during the entire year, snow falls for 62.5 days and aggregates up to 14.09" (358mm) of snow.

Daylight

In January, the average length of the day is 9h and 28min.
On the first day of the month, sunrise is at 8:02 am and sunset at 5:09 pm. On the last day of January, sunrise is at 7:47 am and sunset at 5:43 pm EST.

Sunshine

With an average of 3.1h of sunshine, January has the least sunshine of the year.

UV index

The average daily maximum UV index in January in Rochester is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 2 in January translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What is the coldest month in Rochester?

The coldest time of the year in Rochester, Michigan, is January, with temperatures averaging a high of 28°F (-2.2°C) and a low of 17.8°F (-7.9°C).

How cold is it in Rochester in January?

Rochester in January has an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 17.8°F (-7.9°C).

What are the most humid months in Rochester?

January and February, with an average relative humidity of 86%, are most humid months in Rochester, Michigan.

What is the average humidity in January in Rochester?

The average relative humidity in January in Rochester is 86%.

How much does it rain in Rochester in January?

In January, in Rochester, Michigan, the rain falls for 6.4 days. Throughout January, 1.1" (28mm) of precipitation is accumulated.

How many days does it snow in January in Rochester?

In January, in Rochester, Michigan, it is snowing for 15.7 days. Throughout January, 3.15" (80mm) of snow is accumulated.

What is the average length of the day in January in Rochester?

In January, the average day length is 9h and 28min.

When are sunrise and sunset in January in Rochester?

On the first day of January in Rochester, sunrise is at 8:02 am and sunset at 5:09 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 5:43 pm EST.

What is the month with the least sunshine in Rochester?

With an average of 3.1h of sunshine, January has the least sunshine of the year in Rochester.

How long on average sun shines in January in Rochester?

In January, the average sunshine duration is 3.1h.

What is the UV index reading in January in Rochester?

In Rochester, the average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
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
Rochester, MI

Average temperature in January - Rochester, MI
  • Average high temperature in January: 28°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in January: 17.8°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

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Average pressure in January
Rochester, MI

Average pressure in January - Rochester, MI
  • Average pressure in January: 30.07"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in January
Rochester, MI

Average wind speed in January - Rochester, MI
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in January
Rochester, MI

Average humidity in January - Rochester, MI
  • Average humidity in January: 86%

The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April, May, July and August (75%).

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Average rainfall in January
Rochester, MI

Average rainfall in January - Rochester, MI
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are February and December (1.02").

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Average rainfall days in January
Rochester, MI

Average rainfall days in January - Rochester, MI
  • Average rainfall days in January: 6.4 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.4 days).

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Average snowfall in January
Rochester, MI

Average snowfall in January - Rochester, MI
  • Average snowfall in January: 3.15"

The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Rochester, MI

Average snowfall days in January - Rochester, MI
  • Average snowfall days in January: 15.7 days

The month with the highest number of snowfall days is January (15.7 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
Rochester, MI

Average daylight in January / Average sunshine in January - Rochester, MI
  • Average daylight in January: 9h and 3min

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: 3h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

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Average sunshine days in January
Rochester, MI

Average sunshine days in January - Rochester, MI
  • Average sunshine days in January: 11 days

The month with the most sunshine days is November (14.9 days).
The month with the least sunshine days is February (9.8 days).

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Average UV index in January
Rochester, MI

Average UV index in January - Rochester, MI
  • Average UV index in January: 2

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

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Average cloud cover in January
Rochester, MI

Average cloud cover in January - Rochester, MI
  • Average cloud cover in January: 67

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 29).

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Average visibility in January
Rochester, MI

Average visibility in January - Rochester, 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).

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Rochester, Michigan, USA

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