December weather forecast
Lehigh, WI

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Weather in December

The first month of the winter, December, is still a freezing cold month in Lehigh, Wisconsin, with an average temperature varying between 23.5°F (-4.7°C) and 12.9°F (-10.6°C).

Temperature

December brings a decrease in the average high-temperature, falling from November's cold 37.8°F (3.2°C) to a freezing cold 23.5°F (-4.7°C). The temperature lowers to an average of 12.9°F (-10.6°C) during December nights.

Humidity

In December, the average relative humidity is 91%.

Rainfall

In Lehigh, in December, it is raining for 4 days, with typically 1.3" (33mm) of accumulated precipitation. In Lehigh, during the entire year, the rain falls for 128.9 days and collects up to 23.46" (596mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Lehigh, during December, snow falls for 15.7 days and regularly aggregates up to 5.2" (132mm) of snow. In Lehigh, during the entire year, snow falls for 83.1 days and aggregates up to 28.98" (736mm) of snow.

Daylight

December has the shortest days of the year, with an average of 8h and 48min of daylight.
On the first day of the month, sunrise is at 7:26 am and sunset at 4:24 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:33 pm CST.

Sunshine

In Lehigh, the average sunshine in December is 2.6h.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 1 during December translates into the following guidance:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's radiation is especially intense around midday; try to stay in shade during this period. To cut down UV radiation exposure by about half, sport a wide-brim hat. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

In Lehigh, 23.5°F (-4.7°C) is the average high-temperature and 12.9°F (-10.6°C) is the average low-temperature during December.

What is the average humidity in December in Lehigh?

In Lehigh, the average relative humidity in December is 91%.

How many days does it rain in December?

In Lehigh, in December, during 4 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How much does it snow in December?

In Lehigh, during December, snow falls for 15.7 days and regularly aggregates up to 5.2" (132mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 8h and 48min of daylight.

How many hours of daylight does Lehigh have in December?

In December, the average day length is 8h and 47min.

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:26 am and sunset at 4:24 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:33 pm CST.

How long on average sun shines in December?

In Lehigh, the average sunshine duration in December is 2.6h.

When is the lowest UV index?

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

What is the UV index reading in December?

In Lehigh, the average daily maximum UV index in December is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Lehigh, WI

Average temperature in December - Lehigh, WI
  • Average high temperature in December: 23.5°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 (17.6°F).

  • Average low temperature in December: 12.9°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (5°F).

Average pressure in December
Lehigh, WI

Average pressure in December - Lehigh, WI
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed in December
Lehigh, WI

Average wind speed in December - Lehigh, WI
  • Average wind speed in December: 8.5mph

The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in December
Lehigh, WI

Average humidity in December - Lehigh, WI
  • Average humidity in December: 91%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is May (76%).

Average rainfall in December
Lehigh, WI

Average rainfall in December - Lehigh, WI
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days in December
Lehigh, WI

Average rainfall days in December - Lehigh, WI
  • Average rainfall days in December: 4 days

The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (2.5 days).

Average snowfall in December
Lehigh, WI

Average snowfall in December - Lehigh, WI
  • Average snowfall in December: 5.2"

The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Lehigh, WI

Average snowfall days in December - Lehigh, WI
  • Average snowfall days in December: 15.7 days

The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Lehigh, WI

Average daylight in December / Average sunshine in December - Lehigh, WI
  • Average daylight in December: 8h and 5min

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

  • Average sunshine in December: 2h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).

Average sunshine days in December
Lehigh, WI

Average sunshine days in December - Lehigh, WI
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in December
Lehigh, WI

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

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

Average cloud cover in December
Lehigh, WI

Average cloud cover in December - Lehigh, WI
  • Average cloud cover in December: 73

The months with the most cloud cover are January and February (Cloud cover 75).
The month with the least cloud cover is July (Cloud cover 37).

Average visibility in December
Lehigh, WI

Average visibility in December - Lehigh, WI
  • Average visibility in December: 4mi

The months with the highest visibility are May and June (6mi).
The months with the lowest visibility are January, February and December (4mi).

Lehigh, Wisconsin, USA

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