January weather forecast
Bartlett, IA

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Weather in January

January, like December, is another subzero cold winter month in Bartlett, Iowa, with temperature in the range of an average low of 17.2°F (-8.2°C) and an average high of 31.1°F (-0.5°C).

Temperature

In Bartlett, Iowa, the month of January is known for its lowest average temperatures, reaching a high of 31.1°F (-0.5°C) and a low of 17.2°F (-8.2°C).

Humidity

January is the most humid month, with an average relative humidity of 80%.

Rainfall

In Bartlett, in January, it is raining for 4.3 days, with typically 0.83" (21mm) of accumulated precipitation. In Bartlett, during the entire year, the rain falls for 122.8 days and collects up to 26.69" (678mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. The month with the most snowfall in Bartlett is January, when snow falls for 7.2 days and typically aggregates up to 3.15" (80mm) of snow.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of January, sunrise is at 7:47 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:38 pm CST.

Sunshine

With an average of 4.6h of sunshine, January has the least sunshine of the year.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In January, a daily maximum UV index of 2 leads to the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

In Bartlett, the lowest temperatures are generally noted in January, averaging a high of 31.1°F (-0.5°C) and a low of 17.2°F (-8.2°C).

How cold is January in Bartlett?

The average high-temperature and low-temperature during January are 31.1°F (-0.5°C) and 17.2°F (-8.2°C) respectively.

What is the most humid month?

With an average relative humidity of 80%, January is the most humid month in Bartlett, Iowa.

What is the average humidity in January?

The average relative humidity in January is 80%.

How much does it rain in January?

In January, the rain falls for 4.3 days. Throughout January, 0.83" (21mm) of precipitation is accumulated.

When does it snow the most?

January is the month with the most snowfall. Snow falls for 7.2 days and accumulates 3.15" (80mm) of snow.

How many days does it snow in January?

In Bartlett, Iowa, in January, during 7.2 snowfall days, 3.15" (80mm) of snow is typically accumulated.

What is the average length of the day in January?

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

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:47 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:38 pm CST.

What is the month with the least sunshine?

The month with the least sunshine in Bartlett is January, with an average of 4.6h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 4.6h.

When is the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unsafe exposure to Sun's UV rays.
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
Bartlett, IA

Average temperature in January - Bartlett, IA
  • Average high temperature in January: 31.1°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (31.1°F).

  • Average low temperature in January: 17.2°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 (17.2°F).

Average pressure in January
Bartlett, IA

Average pressure in January - Bartlett, IA
  • 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 (29.86"Hg).

Average wind speed in January
Bartlett, IA

Average wind speed in January - Bartlett, IA
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (7mph).

Average humidity in January
Bartlett, IA

Average humidity in January - Bartlett, IA
  • Average humidity in January: 80%

The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is October (66%).

Average rainfall in January
Bartlett, IA

Average rainfall in January - Bartlett, IA
  • Average rainfall in January: 0.83"

The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is February (0.71").

Average rainfall days in January
Bartlett, IA

Average rainfall days in January - Bartlett, IA
  • Average rainfall days in January: 4.3 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (3.2 days).

Average snowfall in January
Bartlett, IA

Average snowfall in January - Bartlett, IA
  • Average snowfall in January: 3.15"

The month with the highest snowfall is January (3.15").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Bartlett, IA

Average snowfall days in January - Bartlett, IA
  • Average snowfall days in January: 7.2 days

The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Bartlett, 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 4min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in January
Bartlett, IA

Average sunshine days in January - Bartlett, IA
  • Average sunshine days in January: 19.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.8 days).

Average UV index in January
Bartlett, IA

Average UV index in January - Bartlett, 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, October, November and December (UV index 2).

Average cloud cover in January
Bartlett, IA

Average cloud cover in January - Bartlett, IA
  • Average cloud cover in January: 49

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in January
Bartlett, IA

Average visibility in January - Bartlett, 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).

Bartlett, Iowa, USA

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