January weather forecast
Dubuque, IA

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A small railway line in Dubuque, Iowa, set on a hilly and scenic greenery spot overlooking the brown buildings in the rest of the city
A small railway line in Dubuque, Iowa, set on a hilly and scenic greenery spot overlooking the brown buildings in the rest of the city

Weather in January

Dubuque weather in January is characterized by harsh wind chill and cold conditions due to low temperatures. The drastic plunge from December to 12.4°F (-10.9°C) is noticeable at the month's onset. Occasional flurries hit the area with a total snowfall at a high of 4.88" (124mm). Although winter sunlight doesn't persist long, the cold air is usually clear and crisp, promoting breathtaking views of the city's fascinating landscapes. With the harsh wind and cold, residents often spend more time indoors, making this month a quieter period in the city's social calendar.

Temperature

The month of January, characterized by an average high of 25°F (-3.9°C) and a low of 12.4°F (-10.9°C), is recognized as the coldest in Dubuque.

Humidity

January and February, with an average relative humidity of 87%, are the most humid months.

Rainfall

January and February are months with the least rain in Dubuque when the rain falls for 4.8 days and typically aggregates up to 1.14" (29mm) of rain.

Snowfall

Months with snowfall in Dubuque are January through April, October through December. The month with the most snowfall in Dubuque is January, when snow falls for 12.8 days and typically aggregates up to 4.88" (124mm) of snow.

Daylight

In January, the average length of the day in Dubuque is 9h and 29min.
On the first day of the month, sunrise is at 7:32 am and sunset at 4:40 pm. On the last day of January, sunrise is at 7:17 am and sunset at 5:14 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

UV index

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 1 in January translates into these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
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Frequently asked questions

What is the coldest time of year in Dubuque?

Dubuque, Iowa, notes the coldest temperatures in January, with a average high of 25°F (-3.9°C) and a low of 12.4°F (-10.9°C).

How cold is January in Dubuque?

An average high-temperature, in January, in Dubuque, is 25°F (-3.9°C) and the average low-temperature is 12.4°F (-10.9°C).

What are the most humid months in Dubuque?

January and February, with an average relative humidity of 87%, are most humid months in Dubuque, Iowa.

What is the average humidity in January in Dubuque?

The average relative humidity in January in Dubuque, Iowa, is 87%.

What is the driest month in Dubuque?

January and February are months with the least rain when the rain falls for 4.8 days and typically aggregates up to 1.14" (29mm) of rain.

How many days does it rain in January in Dubuque?

In Dubuque, Iowa, during January, the rain falls for 4.8 days and regularly aggregates up to 1.14" (29mm) of precipitation.

What is the snowiest month in Dubuque?

The month with the most snowfall in Dubuque, Iowa, is January, when snow falls for 12.8 days and typically aggregates up to 4.88" (124mm) of snow.

How many days does it snow in January in Dubuque?

In Dubuque, Iowa, in January, snow falls for 12.8 days, with typically accumulated 4.88" (124mm) of snow.

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

The average day length in January is 9h and 29min.

When are sunrise and sunset in January in Dubuque?

In January, on the first day of the month, sunrise is at 7:32 am and sunset at 4:40 pm. On the last day of the month, in Dubuque, Iowa, sunrise is at 7:17 am and sunset at 5:14 pm CST.

What is the month with the least sunshine in Dubuque?

The month with the least sunshine in Dubuque is January, with an average of 3.5h of sunshine.

How long on average sun shines in January in Dubuque?

In January, the average sunshine duration in Dubuque, Iowa, is 3.5h.

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

January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Dubuque, Iowa.

What is the UV index intensity in January in Dubuque?

In January, the average daily maximum UV index in Dubuque is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to the Sun's 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
Dubuque, IA

Average temperature in January - Dubuque, IA
  • Average high temperature in January: 25°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (25°F).

  • Average low temperature in January: 12.4°F

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).

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Average pressure in January
Dubuque, IA

Average pressure in January - Dubuque, IA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in January
Dubuque, IA

Average wind speed in January - Dubuque, IA
  • Average wind speed in January: 10.2mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Dubuque, IA

Average humidity in January - Dubuque, IA
  • Average humidity in January: 87%

The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in January
Dubuque, IA

Average rainfall in January - Dubuque, IA
  • Average rainfall in January: 1.14"

The wettest months (with the highest rainfall) are May and June (3.7").
The driest months (with the least rainfall) are January and February (1.14").

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Average rainfall days in January
Dubuque, IA

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

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in January
Dubuque, IA

Average snowfall in January - Dubuque, IA
  • Average snowfall in January: 4.88"

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Dubuque, IA

Average snowfall days in January - Dubuque, IA
  • Average snowfall days in January: 12.8 days

The month with the highest number of snowfall days is January (12.8 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
Dubuque, IA

Average daylight in January / Average sunshine in January - Dubuque, IA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 3min

The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Dubuque, IA

Average sunshine days in January - Dubuque, IA
  • Average sunshine days in January: 15.7 days

The months with the most sunshine days are November and December (17.5 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in January
Dubuque, IA

Average UV index in January - Dubuque, IA
  • Average UV index in January: 1

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

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Average cloud cover in January
Dubuque, IA

Average cloud cover in January - Dubuque, IA
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
Dubuque, IA

Average visibility in January - Dubuque, IA
  • Average visibility in January: 5mi

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

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Dubuque, Iowa, USA

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