January weather forecast
Mercer, MO

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Weather in January

January, like December, is another subzero cold winter month in Mercer, Missouri, with an average temperature ranging between min 16.9°F (-8.4°C) and max 30.6°F (-0.8°C).

Temperature

The coldest month is January, with an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 16.9°F (-8.4°C).

Humidity

The average relative humidity in January is 80%.

Rainfall

The months with the least rainfall in Mercer, Missouri, are January and December Rain falls for 4.8 days and accumulates 0.67" (17mm) of rain.

Snowfall

Months with snowfall are January through May, October through December. January is the month with the most snowfall in Mercer. Snow falls for 8.6 days and accumulates 2.72" (69mm) of snow.

Daylight

The average length of the day in January is 9h and 40min.
On the first day of the month, sunrise is at 7:37 am and sunset at 4:57 pm. On the last day of January, sunrise is at 7:24 am and sunset at 5:30 pm CST.

Sunshine

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

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In January, a daily UV index of 1 turns into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
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Frequently asked questions

What is the coldest time of year in Mercer?

The month of January, characterized by an average high of 30.6°F (-0.8°C) and a low of 16.9°F (-8.4°C), is recognized as the coldest.

How cold is it in Mercer in January?

January temperatures in Mercer, Missouri, vary between a high-temperature of 30.6°F (-0.8°C) and a low-temperature of 16.9°F (-8.4°C).

What is the average humidity in January in Mercer?

The average relative humidity in January in Mercer, Missouri, is 80%.

What is the driest month in Mercer?

January and December are months with the least rain in Mercer, Missouri, when the rain falls for 4.8 days and typically aggregates up to 0.67" (17mm) of rain.

How much does it rain in Mercer in January?

In Mercer, in January, it is raining for 4.8 days, with typically 0.67" (17mm) of accumulated precipitation.

What is the snowiest month in Mercer?

January is the month with the most snowfall in Mercer. Snow falls for 8.6 days and accumulates 2.72" (69mm) of snow.

How many days does it snow in January in Mercer?

In Mercer, Missouri, in January, during 8.6 snowfall days, 2.72" (69mm) of snow is typically accumulated.

What is the average length of the day in January in Mercer?

The average day length in January is 9h and 40min.

What time are sunrise and sunset in January in Mercer?

On the first day of January in Mercer, Missouri, sunrise is at 7:37 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:30 pm CST.

What is the month with the least sunshine in Mercer?

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

How many hours of sunshine does Mercer have in January?

In January, the average sunshine duration in Mercer, Missouri, is 4.4h.

What is the month with the lowest UV index in Mercer?

January is the month with the lowest UV index in Mercer, with an average maximum UV index of 1.

How high is the UV index in January in Mercer?

The average daily maximum UV index in January is 1. A UV Index reading of 2, and below, represents a minimal hazard to health from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
35.6°F 2°C
30.6°F -0.8°C
34.3°F 1.3°C
Average low temperature
23.4°F -4.8°C
16.9°F -8.4°C
19.8°F -6.8°C
Average pressure
30.12" 765mmHg
30.16" 766mmHg
30.14" 766mmHg
Average wind speed
9.9mph 15.9km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average max. wind speed
10.6mph 17.1km/h
11.1mph 17.9km/h
11.1mph 17.9km/h
Average wind speed gusts
15.9mph 25.6km/h
16.7mph 26.9km/h
16.4mph 26.4km/h
Average humidity
79%
80%
80%
Average rainfall
0.67" 17mm
0.67" 17mm
0.71" 18mm
Average rainfall days
5.7
4.8
5
Average snowfall
1.14" 29mm
2.72" 69mm
2.4" 61mm
Average snowfall days
5.9
8.6
8.2
Average daylight
9h 2min
9h 4min
10h 4min
Average sunshine
4h 5min
4h 2min
5h 1min
Average sunshine days
20.3
19.1
15.9
Average UV index
2
1
2
Average cloud cover
47%
51%
48%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in January
Mercer, MO

Average temperature in January - Mercer, MO
  • Average high temperature in January: 30.6°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in January: 16.9°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

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Average pressure in January
Mercer, MO

Average pressure in January - Mercer, MO
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in January
Mercer, MO

Average wind speed in January - Mercer, MO
  • Average wind speed in January: 10.4mph

The windiest months (with the highest average wind speed) are January, February and March (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in January
Mercer, MO

Average humidity in January - Mercer, MO
  • Average humidity in January: 80%

The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in January
Mercer, MO

Average rainfall in January - Mercer, MO
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and December (0.67").

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Average rainfall days in January
Mercer, MO

Average rainfall days in January - Mercer, MO
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in January
Mercer, MO

Average snowfall in January - Mercer, MO
  • Average snowfall in January: 2.72"

The month with the highest snowfall is January (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Mercer, MO

Average snowfall days in January - Mercer, MO
  • Average snowfall days in January: 8.6 days

The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Mercer, 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 18min).

  • 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).

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Average sunshine days in January
Mercer, MO

Average sunshine days in January - Mercer, MO
  • Average sunshine days in January: 19.1 days

The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in January
Mercer, MO

Average UV index in January - Mercer, MO
  • Average UV index in January: 1

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

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Average cloud cover in January
Mercer, MO

Average cloud cover in January - Mercer, MO
  • Average cloud cover in January: 51

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in January
Mercer, MO

Average visibility in January - Mercer, 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).

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Mercer, Missouri, USA

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