January weather forecast
Williamston, MI

Weather in January

January, the same as December, in Williamston, Michigan, is another subzero cold winter month, with average temperature ranging between max 27.7°F (-2.4°C) and min 17.1°F (-8.3°C).

Temperature

The coldest month is January, with an average high-temperature of 27.7°F (-2.4°C) and an average low-temperature of 17.1°F (-8.3°C).

Humidity

January and February, with an average relative humidity of 87%, are most humid months.

Rainfall

In Williamston, Michigan,, it is raining for 6.8 days, with typically 1.81" (46mm) of accumulated precipitation. In Williamston, during the entire year, the rain falls for 150.4 days and collects up to 24.65" (626mm) of precipitation.

Snowfall

Months with snowfall in Williamston are January through May, October through December. In Williamston, during 17.5 snowfall days, 4.88" (124mm) of snow is typically accumulated. In Williamston, during the entire year, snow falls for 66.3 days, and aggregates up to 19.17" (487mm) of snow.

Daylight

In Williamston, the average length of the day is 9.5h.

Sunshine

The month with the least sunshine in Williamston is January, with an average of 2.7h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Williamston. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Williamston?

The coldest month is January, with an average high-temperature of 27.7°F (-2.4°C) and an average low-temperature of 17.1°F (-8.3°C).

What are the most humid months in Williamston?

Months with the highest humidity in Williamston, Michigan, are January and February, with an average relative humidity of 87%.

What is the average humidity in January in Williamston?

In January, the average relative humidity in Williamston is 87%.

How much does it rain in Williamston in January?

In Williamston, in January, during 6.8 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

How many days does it snow in January in Williamston?

In Williamston, in January, during 17.5 snowfall days, 4.88" (124mm) of snow is typically accumulated.

How many hours of daylight does Williamston have in January?

The average length of the day in January in Williamston is 9.5h.

What is the month with the least sunshine in Williamston?

January has the least sunshine of the year in Williamston, with an average of 2.7h of sunshine.

How many hours of sunshine does Williamston have in January?

In Williamston, Michigan, the average sunshine in January is 2.7h.

When is the lowest UV index in Williamston?

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

What is the UV index intensity in January in Williamston?

In January, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from unprotected exposure to the UV radiation.

Average temperature in January
Williamston, MI

Average temperature in January - Williamston, MI
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 17.1°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

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Average pressure in January
Williamston, MI

Average pressure in January - Williamston, MI
  • Average pressure in January: 30.07"

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

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Average wind speed in January
Williamston, MI

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

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

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Average humidity in January
Williamston, MI

Average humidity in January - Williamston, MI
  • Average humidity in January: 87%

Months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).

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Average rainfall in January
Williamston, MI

Average rainfall in January - Williamston, MI
  • Average rainfall in January: 1.81"

The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is December (1.42").

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Average rainfall days in January
Williamston, MI

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

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.2 days).

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Average snowfall in January
Williamston, MI

Average snowfall in January - Williamston, MI
  • Average snowfall in January: 4.88"

The month with the highest snowfall is February (5.51").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Williamston, MI

Average snowfall days in January - Williamston, MI
  • Average snowfall days in January: 17.5 days

The month with the highest number of snowfall days is January (17.5 days).
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
Williamston, MI

Average daylight in January / Average sunshine in January - Williamston, MI
  • Average daylight in January: 9.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 2.7h

The month with the most sunshine is July (Average sunshine: 10.2h).
The month with the least sunshine is January (Average sunshine: 2.7h).

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Average sunshine days in January
Williamston, MI

Average sunshine days in January - Williamston, MI
  • Average sunshine days in January: 8.9 days

The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in January
Williamston, MI

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

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Williamston, MI

Average cloud cover in January - Williamston, MI
  • Average cloud cover in January: 71

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).

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Average visibility in January
Williamston, MI

Average visibility in January - Williamston, MI
  • Average visibility in January: 5mi

Months with the highest visibility are March, April, May, June, July, October and November (6mi).
Months with the lowest visibility are January, February, August, September and December (5mi).

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