December weather forecast
Ortonville, MI

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Weather in December

December, the first month of the winter in Ortonville, is still a cold month, with an average temperature ranging between max 33.3°F (0.7°C) and min 24.6°F (-4.1°C).

Temperature

The shift to December brings a decrease in the average high-temperature, falling from a chilly 44.4°F (6.9°C) in November to a cold 33.3°F (0.7°C). During the nights of December, Ortonville records an average temperature of 24.6°F (-4.1°C), a minor drop from daytime peaks.

Humidity

In December, the average relative humidity is 84%.

Rainfall

The month with the least rainfall in Ortonville is December, when the rain falls for 7.7 days and typically collects 0.75" (19mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Ortonville, Michigan, in December, during 10.4 snowfall days, 1.34" (34mm) of snow is typically accumulated. Throughout the year, there are 52.4 snowfall days, and 9.69" (246mm) of snow is accumulated.

Daylight

With an average of 9h and 6min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:45 am and sunset at 5:00 pm. On the last day of December, sunrise is at 8:04 am and sunset at 5:09 pm EST.

Sunshine

In Ortonville, the average sunshine in December is 3.3h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Ortonville. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Minimize direct exposure to the Sun during midday when its radiation is at its peak. To cut down UV radiation exposure by about half, sport a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

How cold is it in Ortonville in December?

In Ortonville, 33.3°F (0.7°C) is the average high-temperature and 24.6°F (-4.1°C) is the average low-temperature during December.

What is the average humidity in December in Ortonville?

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

What is the driest month in Ortonville?

The month with the least rainfall in Ortonville, Michigan, is December, when the rain falls for 7.7 days and typically collects 0.75" (19mm) of precipitation.

How many days does it rain in December in Ortonville?

In Ortonville, Michigan, in December, it is raining for 7.7 days, with typically 0.75" (19mm) of accumulated precipitation.

How much does it snow in Ortonville in December?

In December, in Ortonville, it is snowing for 10.4 days. Throughout December, 1.34" (34mm) of snow is accumulated.

What is the month with the shortest days in Ortonville?

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

How many hours of daylight does Ortonville have in December?

The average day length in December in Ortonville, Michigan, is 9h and 5min.

When is the sunrise / sunset in December in Ortonville?

In December, on the first day of the month, sunrise is at 7:45 am and sunset at 5:00 pm. On the last day of the month, in Ortonville, Michigan, sunrise is at 8:04 am and sunset at 5:09 pm EST.

How long on average sun shines in December in Ortonville?

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

What are the months with the lowest UV index in Ortonville?

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

How high is the UV index in December in Ortonville?

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

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

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in December: 24.6°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in December
Ortonville, MI

Average pressure in December - Ortonville, 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).

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Average wind speed in December
Ortonville, MI

Average wind speed in December - Ortonville, MI
  • Average wind speed in December: 9.8mph

The windiest months (with the highest average wind speed) are January and February (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in December
Ortonville, MI

Average humidity in December - Ortonville, 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%).

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Average rainfall in December
Ortonville, MI

Average rainfall in December - Ortonville, MI
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is December (0.75").

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Average rainfall days in December
Ortonville, MI

Average rainfall days in December - Ortonville, MI
  • Average rainfall days in December: 7.7 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.5 days).

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Average snowfall in December
Ortonville, MI

Average snowfall in December - Ortonville, MI
  • Average snowfall in December: 1.34"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Ortonville, MI

Average snowfall days in December - Ortonville, MI
  • Average snowfall days in December: 10.4 days

The month with the highest number of snowfall days is January (13 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
Ortonville, MI

Average daylight in December / Average sunshine in December - Ortonville, 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 24min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).

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Average sunshine days in December
Ortonville, MI

Average sunshine days in December - Ortonville, MI
  • Average sunshine days in December: 15 days

The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in December
Ortonville, MI

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

The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in December
Ortonville, MI

Average cloud cover in December - Ortonville, MI
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in December
Ortonville, MI

Average visibility in December - Ortonville, MI
  • Average visibility in December: 6mi

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

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Ortonville, Michigan, USA

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