December weather forecast
Hillsdale, MO

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Weather in December

December, the first month of the winter in Hillsdale, is still a cold month, with an average temperature ranging between max 42.6°F (5.9°C) and min 30.6°F (-0.8°C).

Temperature

Hillsdale's December weather features a mild decline in high-temperatures, reducing from a fresh 53.4°F (11.9°C) in November to a wintry 42.6°F (5.9°C). During December in Hillsdale, the average low-temperature is recorded at a freezing cold 30.6°F (-0.8°C).

Humidity

In December, the average relative humidity in Hillsdale, Missouri, is 76%.

Rainfall

In Hillsdale, in December, it is raining for 7.5 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 144.8 rainfall days, and 30.59" (777mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Hillsdale. In Hillsdale, in December, snow falls for 3.1 days, with typically accumulated 1.85" (47mm) of snow. In Hillsdale, Missouri, during the entire year, snow falls for 16.2 days and aggregates up to 8.19" (208mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 30min of daylight.
On the first day of the month, sunrise is at 7:00 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:18 am and sunset at 4:49 pm CST.

Sunshine

In December, the average sunshine in Hillsdale is 4.9h.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A daily high UV index of 2 in December leads to these guidelines:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Boost your sun resistance with garments that are densely woven yet spacious. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

How cold is December in Hillsdale?

An average high-temperature, in December, in Hillsdale, is 42.6°F (5.9°C) and the average low-temperature is 30.6°F (-0.8°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, in August is calculated to be 95°F (35°C).

What is the average humidity in December in Hillsdale?

The average relative humidity in December in Hillsdale is 76%.

How much does it rain in Hillsdale in December?

In Hillsdale, Missouri, in December, it is raining for 7.5 days, with typically 2.05" (52mm) of accumulated precipitation.

How much does it snow in Hillsdale in December?

In Hillsdale, Missouri, during December, snow falls for 3.1 days and regularly aggregates up to 1.85" (47mm) of snow.

What is the month with the shortest days in Hillsdale?

December has the shortest days of the year, with an average of 9h and 30min of daylight.

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

The average day length in December is 9h and 31min.

When are sunrise and sunset in December in Hillsdale?

In December, on the first day of the month, sunrise is at 7:00 am and sunset at 4:40 pm. On the last day of the month, in Hillsdale, Missouri, sunrise is at 7:18 am and sunset at 4:49 pm CST.

How long on average sun shines in December in Hillsdale?

The average sunshine duration in December in Hillsdale is 4.9h.

When is the lowest UV index in Hillsdale?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

What is the UV index intensity in December in Hillsdale?

In Hillsdale, Missouri, the average daily maximum UV index in December is 2. A UV Index value 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
Hillsdale, MO

Average temperature in December - Hillsdale, MO
  • Average high temperature in December: 42.6°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in December: 30.6°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure in December
Hillsdale, MO

Average pressure in December - Hillsdale, MO
  • Average pressure in December: 30.13"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in December
Hillsdale, MO

Average wind speed in December - Hillsdale, MO
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in December
Hillsdale, MO

Average humidity in December - Hillsdale, MO
  • Average humidity in December: 76%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in December
Hillsdale, MO

Average rainfall in December - Hillsdale, MO
  • Average rainfall in December: 2.05"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in December
Hillsdale, MO

Average rainfall days in December - Hillsdale, MO
  • Average rainfall days in December: 7.5 days

The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).

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Average snowfall in December
Hillsdale, MO

Average snowfall in December - Hillsdale, MO
  • Average snowfall in December: 1.85"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in December
Hillsdale, MO

Average snowfall days in December - Hillsdale, MO
  • Average snowfall days in December: 3.1 days

The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).

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Average daylight in December /
Average sunshine in December
Hillsdale, MO

Average daylight in December / Average sunshine in December - Hillsdale, MO
  • Average daylight in December: 9h and 3min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in December: 4h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in December
Hillsdale, MO

Average sunshine days in December - Hillsdale, MO
  • Average sunshine days in December: 19.9 days

The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in December
Hillsdale, MO

Average UV index in December - Hillsdale, MO
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in December
Hillsdale, MO

Average cloud cover in December - Hillsdale, MO
  • Average cloud cover in December: 48

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in December
Hillsdale, MO

Average visibility in December - Hillsdale, MO
  • Average visibility in December: 6mi

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

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Hillsdale, Missouri, USA

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