December weather forecast
Howell, MI

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Weather in December

The first month of the winter, December, is also a wintry month in Howell, Michigan, with an average temperature varying between 24.8°F (-4°C) and 33.3°F (0.7°C).

Temperature

As November transitions to December, the average high-temperature falls from a frosty 44.6°F (7°C) to a wintry 33.3°F (0.7°C). During the month of December, Howell identifies an average nighttime low-temperature of 24.8°F (-4°C), slightly lower than its daytime counterpart.

Humidity

In Howell, the average relative humidity in December is 84%.

Rainfall

The month with the least rainfall is December, when the rain falls for 7.8 days and typically collects 1.3" (33mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Howell, Michigan, in December, snow falls for 12.7 days, with typically accumulated 2.8" (71mm) of snow. Throughout the year, there are 62.6 snowfall days, and 16.57" (421mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 6min of daylight.
On the first day of December, sunrise is at 7:46 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 8:05 am and sunset at 5:12 pm EST.

Sunshine

The average sunshine in December in Howell is 3.3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December?

During December, Howell experiences an average high-temperature of 33.3°F (0.7°C) and a low-temperature of 24.8°F (-4°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

What is the driest month?

December is the month with the least rainfall. Rain falls for 7.8 days and accumulates 1.3" (33mm) of precipitation.

How many days does it rain in December?

In Howell, in December, during 7.8 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

How many days does it snow in December?

In December, it is snowing for 12.7 days. Throughout December, 2.8" (71mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 6min of daylight, December has the shortest days of the year.

How many hours of daylight does Howell have in December?

In December, the average day length is 9h and 7min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:46 am and sunset at 5:03 pm. On the last day of the month, in Howell, sunrise is at 8:05 am and sunset at 5:12 pm EST.

How long on average sun shines in December?

In Howell, the average sunshine duration in December is 3.3h.

What is the month with the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
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
Howell, MI

Average temperature in December - Howell, MI
  • Average high temperature in December: 33.3°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in December: 24.8°F

The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Howell, MI

Average pressure in December - Howell, MI
  • Average pressure in December: 30.07"Hg

The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Howell, MI

Average wind speed in December - Howell, MI
  • Average wind speed in December: 9.7mph

The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

Average humidity in December
Howell, MI

Average humidity in December - Howell, MI
  • Average humidity in December: 84%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (77%).

Average rainfall in December
Howell, MI

Average rainfall in December - Howell, MI
  • Average rainfall in December: 1.3"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in December
Howell, MI

Average rainfall days in December - Howell, MI
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (5.6 days).

Average snowfall in December
Howell, MI

Average snowfall in December - Howell, MI
  • Average snowfall in December: 2.8"

The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Howell, MI

Average snowfall days in December - Howell, MI
  • Average snowfall days in December: 12.7 days

The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Howell, MI

Average daylight in December / Average sunshine in December - Howell, MI
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

Average sunshine days in December
Howell, MI

Average sunshine days in December - Howell, MI
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (9.9 days).

Average UV index in December
Howell, MI

Average UV index in December - Howell, MI
  • Average UV index in December: 1

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

Average cloud cover in December
Howell, MI

Average cloud cover in December - Howell, MI
  • Average cloud cover in December: 67

The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in December
Howell, MI

Average visibility in December - Howell, MI
  • Average visibility in December: 5mi

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

Howell, Michigan, USA

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