January weather forecast
Peterson, IA

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Weather in January

January, the same as December, in Peterson, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 12°F (-11.1°C) and an average high of 24.4°F (-4.2°C).

Temperature

January is the coldest month, with an average high-temperature of 24.4°F (-4.2°C) and an average low-temperature of 12°F (-11.1°C).

Humidity

With an average relative humidity of 86%, January is the most humid month.

Rainfall

January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 0.55" (14mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Peterson, during January, snow falls for 9.1 days and regularly aggregates up to 2.24" (57mm) of snow. In Peterson, during the entire year, snow falls for 36.4 days and aggregates up to 10.67" (271mm) of snow.

Daylight

In Peterson, the average length of the day in January is 9h and 27min.
On the first day of January, sunrise is at 7:52 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:32 pm CST.

Sunshine

With an average of 4.1h of sunshine, January has the least sunshine of the year.

UV index

With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum UV index of 1 during January translates into these guidelines:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The coldest time of the year is January, with temperatures averaging a high of 24.4°F (-4.2°C) and a low of 12°F (-11.1°C).

How cold is it in January?

The high-temperature, in January, in Peterson, is 24.4°F (-4.2°C), while the low-temperature averages to 12°F (-11.1°C).

What is the most humid month in Peterson?

January is the most humid month, with an average relative humidity of 86%.

What is the average humidity in January?

In January, the average relative humidity is 86%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.6 days and accumulates 0.55" (14mm) of precipitation.

How much does it rain in Peterson in January?

In Peterson, in January, during 3.6 rainfall days, 0.55" (14mm) of precipitation is typically accumulated.

How many days does it snow in January?

In Peterson, in January, snow falls for 9.1 days, with typically accumulated 2.24" (57mm) of snow.

How many hours of daylight does Peterson have in January?

In Peterson, the average day length in January is 9h and 27min.

When are sunrise and sunset in January in Peterson?

On the first day of January, sunrise is at 7:52 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:32 pm CST.

What is the month with the least sunshine in Peterson?

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

How many hours of sunshine does Peterson have in January?

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

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

In January, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health risk 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
Peterson, IA

Average temperature in January - Peterson, IA
  • Average high temperature in January: 24.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.4°F).

  • Average low temperature in January: 12°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (12°F).

Average pressure in January
Peterson, IA

Average pressure in January - Peterson, 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 (29.87"Hg).

Average wind speed in January
Peterson, IA

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

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in January
Peterson, IA

Average humidity in January - Peterson, IA
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and October (68%).

Average rainfall in January
Peterson, IA

Average rainfall in January - Peterson, IA
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in January
Peterson, IA

Average rainfall days in January - Peterson, IA
  • Average rainfall days in January: 3.6 days

The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in January
Peterson, IA

Average snowfall in January - Peterson, IA
  • Average snowfall in January: 2.24"

The month with the highest snowfall is February (3.19").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Peterson, IA

Average snowfall days in January - Peterson, IA
  • Average snowfall days in January: 9.1 days

The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Peterson, IA
  • Average daylight in January: 9h and 2min

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

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Peterson, IA

Average sunshine days in January - Peterson, IA
  • Average sunshine days in January: 19.7 days

The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (11.1 days).

Average UV index in January
Peterson, IA

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

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

Average cloud cover in January
Peterson, IA

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in January
Peterson, IA

Average visibility in January - Peterson, 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).

Peterson, Iowa, USA

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