January weather forecast
Fairfield, IA

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Weather in January

The Fairfield weather in January experiences chilly conditions, signifying the crest of the winter season. The frequent snowfall, totaling to 4.33" (110mm), paints the city white, which alongside the short daylight hours of 9.6 hours, fosters the quintessential winter ambiance. High humidity of 81% renders a chill in the air, further characterizing this month. January is windier compared to the following month with an average wind speed of 10.8mph (17.4km/h). The weather starts to transition towards the end of the month, paving the way for February's slightly warmer temperatures.

Temperature

Fairfield witnesses the coldest weather in January, with temperatures averaging a high of 29.1°F (-1.6°C) and a low of 16.5°F (-8.6°C).

Humidity

The average relative humidity in January in Fairfield is 81%.

Rainfall

January and December are months with the least rain in Fairfield when the rain falls for 5.3 days and typically aggregates up to 1.18" (30mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Fairfield. The months with the most snowfall are January and February, with an average 4.33" (110mm) of accumulated snow.

Daylight

In January, the average length of the day in Fairfield is 9h and 38min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:49 pm. On the last day of January, sunrise is at 7:19 am and sunset at 5:23 pm CST.

Sunshine

January has the least sunshine of the year in Fairfield, with an average of 4.1h of sunshine.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index in Fairfield. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A daily high UV index of 1 in January leads to these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
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Frequently asked questions

What is the coldest month in Fairfield?

January is the coldest month, exhibiting average temperatures of 29.1°F (-1.6°C) at the peak and 16.5°F (-8.6°C) at the base.

How cold is it in Fairfield in January?

The high-temperature, in January, in Fairfield, is 29.1°F (-1.6°C), while the low-temperature averages to 16.5°F (-8.6°C).

What is the average humidity in January in Fairfield?

In Fairfield, the average relative humidity in January is 81%.

What is the driest month in Fairfield?

The months with the least rainfall are January and December Rain falls for 5.3 days and accumulates 1.18" (30mm) of rain.

How many days does it rain in January in Fairfield?

In Fairfield, in January, it is raining for 5.3 days, with typically 1.18" (30mm) of accumulated precipitation.

When does it snow the most in Fairfield?

The months with the most snowfall in Fairfield, Iowa, are January and February, with an average 4.33" (110mm) of accumulated snow.

How many days does it snow in January in Fairfield?

In Fairfield, Iowa, in January, snow falls for 10.3 days, with typically accumulated 4.33" (110mm) of snow.

How many hours of daylight does Fairfield have in January?

In Fairfield, Iowa, the average day length in January is 9h and 38min.

When is the sunrise / sunset in January in Fairfield?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 5:23 pm CST.

What is the month with the least sunshine in Fairfield?

The month with the least sunshine is January, with an average of 4.1h of sunshine.

How long on average sun shines in January in Fairfield?

In January, the average sunshine duration in Fairfield, Iowa, is 4.1h.

When is the lowest UV index in Fairfield?

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

How high is the UV index in January in Fairfield?

The average daily maximum UV index in January is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Fairfield, IA

Average temperature in January - Fairfield, IA
  • Average high temperature in January: 29.1°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in January: 16.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in January
Fairfield, IA

Average pressure in January - Fairfield, 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).

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Average wind speed in January
Fairfield, IA

Average wind speed in January - Fairfield, IA
  • Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in January
Fairfield, IA

Average humidity in January - Fairfield, IA
  • Average humidity in January: 81%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Fairfield, IA

Average rainfall in January - Fairfield, IA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.18").

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Average rainfall days in January
Fairfield, IA

Average rainfall days in January - Fairfield, IA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in January
Fairfield, IA

Average snowfall in January - Fairfield, IA
  • Average snowfall in January: 4.33"

The months with the highest snowfall are January and February (4.33").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Fairfield, IA

Average snowfall days in January - Fairfield, IA
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Fairfield, IA

Average daylight in January / Average sunshine in January - Fairfield, IA
  • Average daylight in January: 9h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in January
Fairfield, IA

Average sunshine days in January - Fairfield, IA
  • Average sunshine days in January: 16.3 days

The months with the most sunshine days are October and November (18.8 days).
The month with the least sunshine days is May (11 days).

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Average UV index in January
Fairfield, IA

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

Average cloud cover in January - Fairfield, IA
  • Average cloud cover in January: 55

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in January
Fairfield, IA

Average visibility in January - Fairfield, IA
  • Average visibility in January: 6mi

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

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Fairfield, Iowa, USA

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