January weather forecast
Monticello, MO

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Weather in January

January, like December, in Monticello, Missouri, is another cold winter month, with an average temperature fluctuating between 20.1°F (-6.6°C) and 32.5°F (0.3°C).

Temperature

Monticello reaches its lowest average temperatures in January, measuring 32.5°F (0.3°C) at the peak and 20.1°F (-6.6°C) at the lowest.

Humidity

The average relative humidity in January is 78%.

Rainfall

January is the month with the least rainfall. Rain falls for 5.3 days and accumulates 1.26" (32mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 4.21" (107mm) of snow.

Daylight

In January, the average length of the day is 9h and 43min.
On the first day of the month, sunrise is at 7:28 am and sunset at 4:51 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:23 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.4h of sunshine.

UV index

The months with the lowest UV index in Monticello are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January is the coldest month of the year in Monticello, Missouri, registering average temperatures as high as 32.5°F (0.3°C) and as low as 20.1°F (-6.6°C).

How cold is it in January?

In January, the average high-temperature and low-temperature are 32.5°F (0.3°C) and 20.1°F (-6.6°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 78%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 5.3 days and accumulates 1.26" (32mm) of precipitation.

How much does it rain in January?

In Monticello, during January, the rain falls for 5.3 days and regularly aggregates up to 1.26" (32mm) of precipitation.

When does it snow the most in Monticello?

January is the month with the most snowfall. Snow falls for 9.3 days and accumulates 4.21" (107mm) of snow.

How much does it snow in January?

In Monticello, in January, during 9.3 snowfall days, 4.21" (107mm) of snow is typically accumulated.

What is the average length of the day in January?

In January, the average day length is 9h and 43min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:28 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:23 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.4h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 4.4h.

What are the months with the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. 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 January
Monticello, MO

Average temperature in January - Monticello, MO
  • Average high temperature in January: 32.5°F

The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (32.5°F).

  • Average low temperature in January: 20.1°F

The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in January
Monticello, MO

Average pressure in January - Monticello, MO
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in January
Monticello, MO

Average wind speed in January - Monticello, MO
  • Average wind speed in January: 10.2mph

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).

Average humidity in January
Monticello, MO

Average humidity in January - Monticello, MO
  • Average humidity in January: 78%

The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Monticello, MO

Average rainfall in January - Monticello, MO
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.26").

Average rainfall days in January
Monticello, MO

Average rainfall days in January - Monticello, MO
  • Average rainfall days in January: 5.3 days

The months with the highest number of rainy days are May and June (17.3 days).
The month with the least rainy days is January (5.3 days).

Average snowfall in January
Monticello, MO

Average snowfall in January - Monticello, MO
  • Average snowfall in January: 4.21"

The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Monticello, MO

Average snowfall days in January - Monticello, MO
  • Average snowfall days in January: 9.3 days

The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in January /
Average sunshine in January
Monticello, MO

Average daylight in January / Average sunshine in January - Monticello, MO
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h 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: 4h and 24min).

Average sunshine days in January
Monticello, MO

Average sunshine days in January - Monticello, MO
  • Average sunshine days in January: 17.9 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in January
Monticello, MO

Average UV index in January - Monticello, MO
  • Average UV index in January: 2

The months with the highest UV index are 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 January
Monticello, MO

Average cloud cover in January - Monticello, MO
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in January
Monticello, MO

Average visibility in January - Monticello, MO
  • Average visibility in January: 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).

Monticello, Missouri, USA

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