December weather forecast and climate
Ashland, WI

December, the first month of the winter, in Ashland, is also a subzero cold month, with average temperature ranging between min 16°F (-8.9°C) and max 25.3°F (-3.7°C).

Temperature

In December, the average high-temperature decreases, from a cold 37.6°F (3.1°C) in November, to a freezing cold 25.3°F (-3.7°C). In Ashland, the average low-temperature is 16°F (-8.9°C).

Humidity

In Ashland, the average relative humidity is 88%.

Rainfall

In Ashland, it is raining for 4.3 days, with typically 1.54" (39mm) of accumulated precipitation. In Ashland, during the entire year, the rain falls for 121.6 days and collects up to 21.42" (544mm) of precipitation.

Snowfall

Months with snowfall in Ashland are January through May, October through December. The month with the most snowfall in Ashland is December when snow falls for 20.2 days and typically aggregates up to 7.95" (202mm) of snow.

Ocean temperature

In December, the average ocean temperature is 38.8°F (3.8°C).
Note: For swimming, this is considered extremely cold, dangerous, and life-threatening. Unless suitably protected with insulated waterproof clothing, hypothermia quickly occurs.

Daylight

December has the shortest days of the year, with an average of 8.6h of daylight.

Sunshine

The average sunshine in December is 2.5h.

UV index

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 minimal health hazard from unsafe exposure to the UV radiation for the average person.
Note: In December, 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. 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.

What is the temperature in December in Ashland?

In December, in Ashland, Wisconsin, the average high-temperature is 25.3°F (-3.7°C), and the average low-temperature is 16°F (-8.9°C).

What is the average humidity in December in Ashland?

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

How much does it rain in Ashland in December?

In Ashland, Wisconsin, in December, during 4.3 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.

How much does it snow in Ashland in December?

In Ashland, Wisconsin, in December, during 20.2 snowfall days, 7.95" (202mm) of snow is typically accumulated.

What is the snowiest month in Ashland?

The month with the most snowfall in Ashland is December when snow falls for 20.2 days and typically aggregates up to 7.95" (202mm) of snow.

What is the water temperature in December in Ashland?

In Ashland, Wisconsin, the average seawater temperature in December is 38.8°F (3.8°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the month with the shortest days in Ashland?

With an average of 8.6h of daylight, December has the shortest days of the year in Ashland, Wisconsin.

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

In December, the average length of the day is 8.6h.

How long on average sun shines in December in Ashland?

In Ashland, Wisconsin, the average sunshine in December is 2.5h.

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

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

What is the UV index intensity in December in Ashland?

The average daily maximum UV index in December in Ashland is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from the exposure to the Sun's UV radiation.
Average temperature in December - Ashland, WI
  • Average high temperature in December: 25.3°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (19.4°F).

  • Average low temperature in December: 16°F

The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).

Average pressure in December - Ashland, WI
  • Average pressure in December: 30.07"

The month with the highest atmospheric pressure is February (30.1").
The month with the lowest atmospheric pressure is June (29.9").

Average wind speed in December - Ashland, WI
  • Average wind speed in December: 8.9mph

The windiest month (with the highest average wind speed) is November (9.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average humidity in December - Ashland, WI
  • Average humidity in December: 88%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (72%).

Average rainfall in December - Ashland, WI
  • Average rainfall in December: 1.54"

The wettest month (with the highest rainfall) is July (2.56").
The driest month (with the least rainfall) is January (0.94").

Average rainfall days in December - Ashland, WI
  • Average rainfall days in December: 4.3 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (3.2 days).

Average snowfall in December - Ashland, WI
  • Average snowfall in December: 7.95"

The month with the highest snowfall is December (7.95").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in December - Ashland, WI
  • Average snowfall days in December: 20.2 days

The month with the highest number of snowfall days is January (21.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average sea temperature in December - Ashland, WI
  • Average sea temperature in December: 38.9°F

The best month for swimming (with the highest average sea temperature) is August (63.3°F).
The coldest month (with the lowest average sea temperature) is February (32.9°F).

Average daylight in December / Average sunshine in December - Ashland, WI
  • Average daylight in December: 8.6h

The month with the longest days is June (Average daylight: 15.8h).
The month with the shortest days is December (Average daylight: 8.6h).

  • Average sunshine in December: 2.5h

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 2.3h).

Average sunshine days in December - Ashland, WI
  • Average sunshine days in December: 9.8 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is December (9.8 days).

Average UV index in December - Ashland, WI
  • Average UV index in December: 1

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

Average cloud cover in December - Ashland, WI
  • Average cloud cover in December: 75

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December - Ashland, WI
  • Average visibility in December: 5mi

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).