December weather forecast
Winona, MN

Weather in December

The first month of the winter, December, is also a subzero cold month in Winona, Minnesota, with an average temperature varying between 15.8°F (-9°C) and 27°F (-2.8°C).

Temperature

In December, the average high-temperature declines considerably from a wintry 41.5°F (5.3°C) in November to a freezing cold 27°F (-2.8°C). In Winona, Minnesota, in December, the average low-temperature is 15.8°F (-9°C).

Humidity

In Winona, the average relative humidity in December is 88%.

Rainfall

In Winona, in December, it is raining for 4.5 days, with typically 1.1" (28mm) of accumulated precipitation. In Winona, during the entire year, the rain falls for 132.9 days and collects up to 24.88" (632mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Winona. In Winona, during 10.6 snowfall days, 3.62" (92mm) of snow is typically accumulated. In Winona, Minnesota, during the entire year, snow falls for 48.6 days and aggregates up to 19.13" (486mm) of snow.

Daylight

With an average of 8h and 57min of daylight, December has the shortest days of the year in Winona.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of December, in Winona, sunrise is at 7:41 am and sunset at 4:38 pm CST.

Sunshine

In Winona, the average sunshine in December is 3.6h.

UV index

January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in December in Winona?

The average relative humidity in December in Winona, Minnesota, is 88%.

How many days does it rain in December in Winona?

In Winona, in December, during 4.5 rainfall days, 1.1" (28mm) of precipitation is typically accumulated.

How many days does it snow in December in Winona?

In Winona, in December, snow falls for 10.6 days, with typically accumulated 3.62" (92mm) of snow.

What is the month with the shortest days in Winona?

With an average of 8h and 57min of daylight, December has the shortest days of the year in Winona.

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

The average day length in December in Winona, Minnesota, is 8h and 57min.

When is the sunrise / sunset in December in Winona?

On the first day of December, sunrise is at 7:21 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 4:38 pm CST.

How many hours of sunshine does Winona have in December?

In December, the average sunshine duration in Winona, Minnesota, is 3.6h.

What is the month with the lowest UV index in Winona?

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

What is the UV index reading in December in Winona?

The average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a low health risk 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 December
Winona, MN

Average temperature in December - Winona, MN
  • Average high temperature in December: 27°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (20.8°F).

  • Average low temperature in December: 15.8°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).

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Average pressure in December
Winona, MN

Average pressure in December - Winona, MN
  • Average pressure in December: 30.1"Hg

The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in December
Winona, MN

Average wind speed in December - Winona, MN
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is April (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).

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Average humidity in December
Winona, MN

Average humidity in December - Winona, MN
  • Average humidity in December: 88%

The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in December
Winona, MN

Average rainfall in December - Winona, MN
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is June (4.49").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in December
Winona, MN

Average rainfall days in December - Winona, MN
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in December
Winona, MN

Average snowfall in December - Winona, MN
  • Average snowfall in December: 3.62"

The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Winona, MN

Average snowfall days in December - Winona, MN
  • Average snowfall days in December: 10.6 days

The months with the highest number of snowfall days are January and February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Winona, MN

Average daylight in December / Average sunshine in December - Winona, MN
  • Average daylight in December: 8h and 57min

The month with the longest days is June (Average daylight: 15h and 26min).
The month with the shortest days is December (Average daylight: 8h and 57min).

  • Average sunshine in December: 3h and 36min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in December
Winona, MN

Average sunshine days in December - Winona, MN
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is December (18.4 days).
The month with the least sunshine days is June (9.4 days).

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Average UV index in December
Winona, MN

Average UV index in December - Winona, MN
  • Average UV index in December: 1

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

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Average cloud cover in December
Winona, MN

Average cloud cover in December - Winona, MN
  • Average cloud cover in December: 64

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in December
Winona, MN

Average visibility in December - Winona, MN
  • Average visibility in December: 5mi

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

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