January weather forecast
Yarmouth, IA

Share

Weather in January

January, the same as December, in Yarmouth, Iowa, is another subzero cold winter month, with temperature in the range of an average low of 17.4°F (-8.1°C) and an average high of 29.7°F (-1.3°C).

Temperature

Yarmouth experiences its lowest temperatures in January, with an average peak of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C).

Humidity

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

Rainfall

In Yarmouth, during January, the rain falls for 4.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Yarmouth, during the entire year, the rain falls for 130.4 days and collects up to 21.81" (554mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 10 days and accumulates 3.03" (77mm) of snow.

Daylight

In January, the average length of the day is 9h and 38min.
On the first day of the month, sunrise is at 7:30 am and sunset at 4:47 pm. On the last day of January, sunrise is at 7:16 am and sunset at 5:20 pm CST.

Sunshine

With an average of 4.2h of sunshine, January has the least sunshine of the year.

UV index

January is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 1 during January leads to these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

The coldest month is January, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 17.4°F (-8.1°C).

How cold is it in January?

During January, Yarmouth experiences an average high-temperature of 29.7°F (-1.3°C) and a low-temperature of 17.4°F (-8.1°C).

What is the average humidity in January?

The average relative humidity in January is 81%.

How many days does it rain in January?

In Yarmouth, in January, it is raining for 4.7 days, with typically 1.1" (28mm) of accumulated precipitation.

What is the snowiest month?

January is the month with the most snowfall in Yarmouth. Snow falls for 10 days and accumulates 3.03" (77mm) of snow.

How much does it snow in January?

In Yarmouth, in January, during 10 snowfall days, 3.03" (77mm) of snow is typically accumulated.

How many hours of daylight does Yarmouth have in January?

The average day length in January is 9h and 38min.

What time are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:30 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 5:20 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

How many hours of sunshine does Yarmouth have in January?

The average sunshine duration in January is 4.2h.

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?

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

Average temperature in January - Yarmouth, IA
  • Average high temperature in January: 29.7°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 (29.7°F).

  • Average low temperature in January: 17.4°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

Average pressure in January
Yarmouth, IA

Average pressure in January - Yarmouth, IA
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in January
Yarmouth, IA

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

The windiest months (with the highest average wind speed) are January, February, March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in January
Yarmouth, IA

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

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Yarmouth, IA

Average rainfall in January - Yarmouth, IA
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.87").

Average rainfall days in January
Yarmouth, IA

Average rainfall days in January - Yarmouth, IA
  • Average rainfall days in January: 4.7 days

The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).

Average snowfall in January
Yarmouth, IA

Average snowfall in January - Yarmouth, IA
  • Average snowfall in January: 3.03"

The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Yarmouth, IA

Average snowfall days in January - Yarmouth, IA
  • Average snowfall days in January: 10 days

The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

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

Average sunshine days in January
Yarmouth, IA

Average sunshine days in January - Yarmouth, IA
  • Average sunshine days in January: 17.6 days

The months with the most sunshine days are October and December (18.5 days).
The month with the least sunshine days is June (10.5 days).

Average UV index in January
Yarmouth, IA

Average UV index in January - Yarmouth, 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
Yarmouth, IA

Average cloud cover in January - Yarmouth, IA
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
Yarmouth, IA

Average visibility in January - Yarmouth, 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).

Yarmouth, Iowa, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location