January weather forecast
Farmington, IA

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Weather in January

January, like December, is a freezing cold winter month in Farmington, Iowa, with temperature in the range of an average high of 31.6°F (-0.2°C) and an average low of 18.9°F (-7.3°C).

Temperature

January is the coldest month, exhibiting average temperatures of 31.6°F (-0.2°C) at the peak and 18.9°F (-7.3°C) at the base.

Humidity

The average relative humidity in January is 79%.

Rainfall

January is the month with the least rainfall. Rain falls for 4.8 days and accumulates 1.22" (31mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 7.4 days and accumulates 3.98" (101mm) of snow.

Daylight

In Farmington, the average length of the day in January is 9h and 40min.
On the first day of January, sunrise is at 7:30 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:22 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.3h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: The UV index of 2 during January translates into the following guidance:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Farmington's temperature records reveal January as the coldest month, marked by average highs of 31.6°F (-0.2°C) and lows of 18.9°F (-7.3°C).

How cold is January?

An average high-temperature, in January, in Farmington, is 31.6°F (-0.2°C) and the average low-temperature is 18.9°F (-7.3°C).

What is the average humidity in January?

In Farmington, the average relative humidity in January is 79%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 4.8 days and accumulates 1.22" (31mm) of precipitation.

How many days does it rain in January?

In Farmington, during January, the rain falls for 4.8 days and regularly aggregates up to 1.22" (31mm) of precipitation.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 7.4 days and accumulates 3.98" (101mm) of snow.

How much does it snow in January?

In Farmington, in January, snow falls for 7.4 days, with typically accumulated 3.98" (101mm) of snow.

What is the average length of the day in January?

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

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:30 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 5:22 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.3h of sunshine.

How many hours of sunshine does Farmington have in January?

The average sunshine duration in January is 4.3h.

What is the month with the lowest UV index?

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

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 risk 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
Farmington, IA

Average temperature in January - Farmington, IA
  • Average high temperature in January: 31.6°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in January: 18.9°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 (18.9°F).

Average pressure in January
Farmington, IA

Average pressure in January - Farmington, IA
  • 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
Farmington, IA

Average wind speed in January - Farmington, IA
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in January
Farmington, IA

Average humidity in January - Farmington, IA
  • Average humidity in January: 79%

The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Farmington, IA

Average rainfall in January - Farmington, IA
  • Average rainfall in January: 1.22"

The wettest month (with the highest rainfall) is May (3.7").
The driest month (with the least rainfall) is January (1.22").

Average rainfall days in January
Farmington, IA

Average rainfall days in January - Farmington, IA
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (4.7 days).

Average snowfall in January
Farmington, IA

Average snowfall in January - Farmington, IA
  • Average snowfall in January: 3.98"

The month with the highest snowfall is January (3.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Farmington, IA

Average snowfall days in January - Farmington, IA
  • Average snowfall days in January: 7.4 days

The month with the highest number of snowfall days is January (7.4 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
Farmington, IA

Average daylight in January / Average sunshine in January - Farmington, IA
  • 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 18min).

Average sunshine days in January
Farmington, IA

Average sunshine days in January - Farmington, IA
  • Average sunshine days in January: 19.3 days

The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is June (10.9 days).

Average UV index in January
Farmington, IA

Average UV index in January - Farmington, IA
  • 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
Farmington, IA

Average cloud cover in January - Farmington, IA
  • Average cloud cover in January: 53

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in January
Farmington, IA

Average visibility in January - Farmington, IA
  • 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).

Farmington, Iowa, USA

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