January weather forecast
Patterson, IA

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Weather in January

January, the same as December, in Patterson, Iowa, is a freezing cold winter month, with temperature in the range of an average low of 15.3°F (-9.3°C) and an average high of 28.8°F (-1.8°C).

Temperature

Patterson records the coldest temperatures in January, averaging a high of 28.8°F (-1.8°C) and a low of 15.3°F (-9.3°C).

Humidity

The months with the highest humidity are January, February and June, with an average relative humidity of 82%.

Rainfall

The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.91" (23mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Patterson, during January, snow falls for 9.1 days and regularly aggregates up to 4.29" (109mm) of snow. In Patterson, during the entire year, snow falls for 35 days and aggregates up to 15.04" (382mm) of snow.

Daylight

In Patterson, the average length of the day in January is 9h and 36min.
On the first day of January in Patterson, Iowa, sunrise is at 7:41 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:29 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.4h of sunshine.

UV index

The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 2 suggests this advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

In Patterson, January registers the lowest temperatures, averaging 28.8°F (-1.8°C) at the peak and 15.3°F (-9.3°C) at the lowest.

How cold is January?

Patterson in January has an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 15.3°F (-9.3°C).

What is the most humid month?

January, February and June, with an average relative humidity of 82%, are most humid months.

What is the average humidity in January?

The average relative humidity in January is 82%.

What is the driest month in Patterson?

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.91" (23mm) of precipitation.

How much does it rain in January?

In January, the rain falls for 3.8 days. Throughout January, 0.91" (23mm) of precipitation is accumulated.

How many days does it snow in January?

In Patterson, during January, snow falls for 9.1 days and regularly aggregates up to 4.29" (109mm) of snow.

What is the average length of the day in January?

The average day length in January in Patterson is 9h and 36min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:41 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:29 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.4h of sunshine.

How long on average sun shines in January?

In January, the average sunshine duration is 4.4h.

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 intensity in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from 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
Patterson, IA

Average temperature in January - Patterson, IA
  • Average high temperature in January: 28.8°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 (28.8°F).

  • Average low temperature in January: 15.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in January
Patterson, IA

Average pressure in January - Patterson, 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 (29.88"Hg).

Average wind speed in January
Patterson, IA

Average wind speed in January - Patterson, IA
  • Average wind speed in January: 10.6mph

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

Average humidity in January
Patterson, IA

Average humidity in January - Patterson, IA
  • Average humidity in January: 82%

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

Average rainfall in January
Patterson, IA

Average rainfall in January - Patterson, IA
  • Average rainfall in January: 0.91"

The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is January (0.91").

Average rainfall days in January
Patterson, IA

Average rainfall days in January - Patterson, IA
  • Average rainfall days in January: 3.8 days

The month with the highest number of rainy days is June (17.9 days).
The months with the least rainy days are January and February (3.8 days).

Average snowfall in January
Patterson, IA

Average snowfall in January - Patterson, IA
  • Average snowfall in January: 4.29"

The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Patterson, IA

Average snowfall days in January - Patterson, 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
Patterson, IA

Average daylight in January / Average sunshine in January - Patterson, 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 12min).

  • Average sunshine in January: 4h and 2min

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 24min).

Average sunshine days in January
Patterson, IA

Average sunshine days in January - Patterson, IA
  • Average sunshine days in January: 19.1 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (9.8 days).

Average UV index in January
Patterson, IA

Average UV index in January - Patterson, 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
Patterson, IA

Average cloud cover in January - Patterson, IA
  • Average cloud cover in January: 52

The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July and September (Cloud cover 29).

Average visibility in January
Patterson, IA

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

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

Patterson, Iowa, USA

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