January weather forecast
Winona, MI

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Weather in January

January, like December, is a freezing cold winter month in Winona, Michigan, with an average temperature fluctuating between 22.3°F (-5.4°C) and 14.4°F (-9.8°C).

Temperature

Winona's coldest temperatures are experienced in January, with average high temperatures of 22.3°F (-5.4°C) and lows of 14.4°F (-9.8°C).

Humidity

The most humid month is January, with an average relative humidity of 88%.

Rainfall

In Winona, Michigan, during January, the rain falls for 2.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Winona, during the entire year, the rain falls for 122.6 days and collects up to 22.56" (573mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Winona. In Winona, during January, snow falls for 22.5 days and regularly aggregates up to 6.5" (165mm) of snow. Throughout the year, in Winona, there are 100.8 snowfall days, and 33.98" (863mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 2min.
On the first day of the month, sunrise is at 8:40 am and sunset at 5:17 pm. On the last day of January, in Winona, sunrise is at 8:21 am and sunset at 5:56 pm EST.

Sunshine

January has the least sunshine of the year in Winona, Michigan, with an average of 1.6h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum high UV index of 1 in January translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

What part of the year is the coldest in Winona?

Temperature readings in Winona reach their annual highs in January, averaging 22.3°F (-5.4°C) and a minimum average of 14.4°F (-9.8°C).

How cold is January in Winona?

In Winona, in January, the average high-temperature is 22.3°F (-5.4°C), and the average low-temperature is 14.4°F (-9.8°C).

What is the most humid month in Winona?

The most humid month in Winona, Michigan, is January, with an average relative humidity of 88%.

What is the average humidity in January in Winona?

In January, the average relative humidity is 88%.

How much does it rain in Winona in January?

In Winona, Michigan, in January, it is raining for 2.8 days, with typically 1.34" (34mm) of accumulated precipitation.

How much does it snow in Winona in January?

In Winona, Michigan, during January, snow falls for 22.5 days and regularly aggregates up to 6.5" (165mm) of snow.

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

In Winona, the average day length in January is 9h and 2min.

When are sunrise and sunset in January in Winona?

On the first day of January, sunrise is at 8:40 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:21 am and sunset at 5:56 pm EST.

What is the month with the least sunshine in Winona?

January has the least sunshine of the year in Winona, with an average of 1.6h of sunshine.

How long on average sun shines in January in Winona?

In Winona, Michigan, the average sunshine duration in January is 1.6h.

When is the lowest UV index in Winona?

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

How high is the UV index in January in Winona?

The average daily maximum UV index in January in Winona is 1. A UV Index reading of 2, and below, represents a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
27.5°F -2.5°C
22.3°F -5.4°C
23.4°F -4.8°C
Average low temperature
21°F -6.1°C
14.4°F -9.8°C
15.1°F -9.4°C
Average pressure
30.05" 763mmHg
30.05" 763mmHg
30.07" 764mmHg
Average wind speed
12.5mph 20.1km/h
12.6mph 20.3km/h
11.9mph 19.2km/h
Average max. wind speed
13.1mph 21.1km/h
13.2mph 21.2km/h
12.5mph 20.1km/h
Average wind speed gusts
17.3mph 27.8km/h
17.2mph 27.7km/h
17.1mph 27.5km/h
Average humidity
85%
88%
87%
Average rainfall
1.81" 46mm
1.34" 34mm
1.22" 31mm
Average rainfall days
6.1
2.8
2.5
Average snowfall
6.65" 169mm
6.5" 165mm
6.34" 161mm
Average snowfall days
20.5
22.5
19.7
Average daylight
8h 4min
9h 0min
10h 2min
Average sunshine
2h 0min
1h 4min
2h 4min
Average sunshine days
6.5
5.6
6.8
Average UV index
1
1
2
Average cloud cover
80%
84%
80%
Average visibility
5mi 8km
5mi 8km
5mi 8km

Average temperature in January
Winona, MI

Average temperature in January - Winona, MI
  • Average high temperature in January: 22.3°F

The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).

  • Average low temperature in January: 14.4°F

The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure in January
Winona, MI

Average pressure in January - Winona, MI
  • Average pressure in January: 30.05"Hg

The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Winona, MI

Average wind speed in January - Winona, MI
  • Average wind speed in January: 12.6mph

The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).

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Average humidity in January
Winona, MI

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

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (75%).

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Average rainfall in January
Winona, MI

Average rainfall in January - Winona, MI
  • Average rainfall in January: 1.34"

The wettest months (with the highest rainfall) are April, June, August and October (2.28").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in January
Winona, MI

Average rainfall days in January - Winona, MI
  • Average rainfall days in January: 2.8 days

The month with the highest number of rainy days is October (14.6 days).
The month with the least rainy days is February (2.5 days).

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Average snowfall in January
Winona, MI

Average snowfall in January - Winona, MI
  • Average snowfall in January: 6.5"

The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Winona, MI

Average snowfall days in January - Winona, MI
  • Average snowfall days in January: 22.5 days

The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July and August (0 days).

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

Average daylight in January / Average sunshine in January - Winona, MI
  • Average daylight in January: 9h and 0min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in January: 1h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).

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Average sunshine days in January
Winona, MI

Average sunshine days in January - Winona, MI
  • Average sunshine days in January: 5.6 days

The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (5.6 days).

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Average UV index in January
Winona, MI

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

The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).

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Average cloud cover in January
Winona, MI

Average cloud cover in January - Winona, MI
  • Average cloud cover in January: 84

The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).

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Average visibility in January
Winona, MI

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

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

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Winona, Michigan, USA

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