January weather forecast
Pentwater, MI

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Weather in January

January, the same as December, in Pentwater, Michigan, is a freezing cold winter month, with an average temperature ranging between max 28.2°F (-2.1°C) and min 21.6°F (-5.8°C).

Temperature

The month of January, characterized by an average high of 28.2°F (-2.1°C) and a low of 21.6°F (-5.8°C), is recognized as the coldest.

Humidity

The most humid month is January, with an average relative humidity of 85%.

Rainfall

In Pentwater, Michigan, in January, during 4.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. Throughout the year, there are 140.3 rainfall days, and 25.08" (637mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Pentwater, Michigan, are January through May, October through December. The month with the most snowfall in Pentwater is January, when snow falls for 17.8 days and typically aggregates up to 5" (127mm) of snow.

Daylight

In Pentwater, the average length of the day in January is 9h and 22min.
On the first day of the month, sunrise is at 8:19 am and sunset at 5:18 pm. On the last day of January, in Pentwater, sunrise is at 8:03 am and sunset at 5:54 pm EST.

Sunshine

The month with the least sunshine in Pentwater is January, with an average of 2.1h of sunshine.

UV index

January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Pentwater. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 1 in January interprets into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Pentwater?

January, on average, is the coldest month, registering a high temperature of 28.2°F (-2.1°C) and a low of 21.6°F (-5.8°C).

How cold is January in Pentwater?

January temperatures vary between a high-temperature of 28.2°F (-2.1°C) and a low-temperature of 21.6°F (-5.8°C).

What is the most humid month in Pentwater?

The most humid month in Pentwater is January, with an average relative humidity of 85%.

What is the average humidity in January in Pentwater?

In January, the average relative humidity is 85%.

How many days does it rain in January in Pentwater?

In Pentwater, Michigan, in January, during 4.8 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

What is the snowiest month in Pentwater?

January is the month with the most snowfall in Pentwater. Snow falls for 17.8 days and accumulates 5" (127mm) of snow.

How much does it snow in Pentwater in January?

In Pentwater, in January, during 17.8 snowfall days, 5" (127mm) of snow is typically accumulated.

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

In January, the average day length in Pentwater, Michigan, is 9h and 22min.

What time are sunrise and sunset in January in Pentwater?

In January, on the first day of the month, sunrise is at 8:19 am and sunset at 5:18 pm. On the last day of the month, in Pentwater, sunrise is at 8:03 am and sunset at 5:54 pm EST.

What is the month with the least sunshine in Pentwater?

With an average of 2.1h of sunshine, January has the least sunshine of the year in Pentwater, Michigan.

How many hours of sunshine does Pentwater have in January?

In January, the average sunshine duration in Pentwater, Michigan, is 2.1h.

What are the months with the lowest UV index in Pentwater?

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

How high is the UV index in January in Pentwater?

In January, the average daily maximum UV index in Pentwater, Michigan, is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe 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
Pentwater, MI

Average temperature in January - Pentwater, MI
  • Average high temperature in January: 28.2°F

The warmest month (with the highest average high temperature) is August (73.6°F).
The month with the lowest average high temperature is January (28.2°F).

  • Average low temperature in January: 21.6°F

The month with the highest average low temperature is August (63.9°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

Average pressure in January
Pentwater, MI

Average pressure in January - Pentwater, MI
  • Average pressure in January: 30.06"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
Pentwater, MI

Average wind speed in January - Pentwater, MI
  • Average wind speed in January: 12.8mph

The windiest month (with the highest average wind speed) is November (13.1mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).

Average humidity in January
Pentwater, MI

Average humidity in January - Pentwater, MI
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are April and October (76%).

Average rainfall in January
Pentwater, MI

Average rainfall in January - Pentwater, MI
  • Average rainfall in January: 1.61"

The wettest month (with the highest rainfall) is October (3.46").
The driest month (with the least rainfall) is February (1.34").

Average rainfall days in January
Pentwater, MI

Average rainfall days in January - Pentwater, MI
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is October (17.5 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in January
Pentwater, MI

Average snowfall in January - Pentwater, MI
  • Average snowfall in January: 5"

The month with the highest snowfall is January (5").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Pentwater, MI

Average snowfall days in January - Pentwater, MI
  • Average snowfall days in January: 17.8 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Pentwater, MI
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 2h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).

Average sunshine days in January
Pentwater, MI

Average sunshine days in January - Pentwater, MI
  • Average sunshine days in January: 6.3 days

The month with the most sunshine days is July (14.8 days).
The month with the least sunshine days is January (6.3 days).

Average UV index in January
Pentwater, MI

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

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

Average cloud cover in January
Pentwater, MI

Average cloud cover in January - Pentwater, MI
  • Average cloud cover in January: 79

The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 25).

Average visibility in January
Pentwater, MI

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

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

Pentwater, Michigan, USA

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