December weather forecast
Ironton, MO

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Weather in December

The first month of the winter, December, is also a frosty month in Ironton, Missouri, with an average temperature varying between 43.7°F (6.5°C) and 30.4°F (-0.9°C).

Temperature

In Ironton, the average high-temperature in December drops from a cool 53.2°F (11.8°C) in November to a frosty 43.7°F (6.5°C). Throughout December, the temperature in Ironton, Missouri, falls to an average low of 30.4°F (-0.9°C).

Humidity

In December, the average relative humidity in Ironton is 78%.

Rainfall

In Ironton, in December, during 8.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, there are 150.3 rainfall days, and 30.83" (783mm) of precipitation is accumulated.

Snowfall

January through March, November and December are months with snowfall in Ironton. In Ironton, in December, during 4.4 snowfall days, 1.54" (39mm) of snow is typically accumulated. Throughout the year, in Ironton, there are 21.4 snowfall days, and 7.99" (203mm) of snow is accumulated.

Daylight

The month with the shortest days in Ironton is December, with an average of 9h and 36min of daylight.
On the first day of December in Ironton, Missouri, sunrise is at 6:59 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 4:54 pm CST.

Sunshine

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

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Ironton, Missouri. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in December transforms into the following instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Ironton?

During December, Ironton experiences an average high-temperature of 43.7°F (6.5°C) and a low-temperature of 30.4°F (-0.9°C). The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 100.4°F (38°C).

What is the average humidity in December in Ironton?

In December, the average relative humidity in Ironton is 78%.

How much does it rain in Ironton in December?

In Ironton, Missouri, in December, during 8.6 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

How many days does it snow in December in Ironton?

In Ironton, in December, snow falls for 4.4 days, with typically accumulated 1.54" (39mm) of snow.

What is the month with the shortest days in Ironton?

The month with the shortest days is December, with an average of 9h and 36min of daylight.

How many hours of daylight does Ironton have in December?

The average day length in December in Ironton, Missouri, is 9h and 37min.

What time are sunrise and sunset in December in Ironton?

In December, on the first day of the month, sunrise is at 6:59 am and sunset at 4:44 pm. On the last day of the month, in Ironton, Missouri, sunrise is at 7:17 am and sunset at 4:54 pm CST.

How many hours of sunshine does Ironton have in December?

In December, the average sunshine duration in Ironton is 4.9h.

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

The months with the lowest UV index in Ironton, Missouri, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Ironton?

In December, the average daily maximum UV index in Ironton is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Ironton, MO

Average temperature in December - Ironton, MO
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in December: 30.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

Average pressure in December
Ironton, MO

Average pressure in December - Ironton, 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 (29.93"Hg).

Average wind speed in December
Ironton, MO

Average wind speed in December - Ironton, MO
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in December
Ironton, MO

Average humidity in December - Ironton, MO
  • Average humidity in December: 78%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (73%).

Average rainfall in December
Ironton, MO

Average rainfall in December - Ironton, MO
  • Average rainfall in December: 2.13"

The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.61").

Average rainfall days in December
Ironton, MO

Average rainfall days in December - Ironton, MO
  • Average rainfall days in December: 8.6 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in December
Ironton, MO

Average snowfall in December - Ironton, MO
  • Average snowfall in December: 1.54"

The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Ironton, MO

Average snowfall days in December - Ironton, MO
  • Average snowfall days in December: 4.4 days

The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Ironton, MO
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in December
Ironton, MO

Average sunshine days in December - Ironton, MO
  • Average sunshine days in December: 18.5 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (12.1 days).

Average UV index in December
Ironton, MO

Average UV index in December - Ironton, 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, November and December (UV index 2).

Average cloud cover in December
Ironton, MO

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

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 31).

Average visibility in December
Ironton, MO

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

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

Ironton, Missouri, USA

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