January weather forecast
Ashton, IA

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Weather in January

January, like December, is another subzero cold winter month in Ashton, Iowa, with an average temperature varying between 9.9°F (-12.3°C) and 23.4°F (-4.8°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C).

Humidity

January is the most humid month, with an average relative humidity of 88%.

Rainfall

The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.71" (18mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Ashton, in January, snow falls for 11.8 days, with typically accumulated 3.43" (87mm) of snow. Throughout the year, in Ashton, there are 48.8 snowfall days, and 19.21" (488mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 25min.
On the first day of January, sunrise is at 7:55 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:33 pm CST.

Sunshine

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

UV index

January and February, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: In January, an average UV index of 1 transforms into the following instructions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jul 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

The coldest period is January, when temperatures fluctuate between an average high of 23.4°F (-4.8°C) and a low of 9.9°F (-12.3°C).

How cold is January?

The high-temperature, in January, in Ashton, is 23.4°F (-4.8°C), while the low-temperature averages to 9.9°F (-12.3°C).

What is the most humid month?

January is the most humid month, with an average relative humidity of 88%.

What is the average humidity in January?

In January, the average relative humidity is 88%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.71" (18mm) of precipitation.

How many days does it rain in January?

In January, the rain falls for 3.8 days. Throughout January, 0.71" (18mm) of precipitation is accumulated.

How many days does it snow in January?

In Ashton, in January, snow falls for 11.8 days, with typically accumulated 3.43" (87mm) of snow.

What is the average length of the day in January?

The average day length in January is 9h and 25min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:55 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:33 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4.1h of sunshine.

How long on average sun shines in January in Ashton?

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

What are the months with the lowest UV index?

January and February, with an average maximum UV index of 1, are months with the lowest UV index in Ashton.

What is the UV index intensity in January?

In January, the average daily maximum UV index 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
Ashton, IA

Average temperature in January - Ashton, IA
  • Average high temperature in January: 23.4°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 (23.4°F).

  • Average low temperature in January: 9.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).

Average pressure in January
Ashton, IA

Average pressure in January - Ashton, 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
Ashton, IA

Average wind speed in January - Ashton, 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 (7.8mph).

Average humidity in January
Ashton, IA

Average humidity in January - Ashton, IA
  • Average humidity in January: 88%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

Average rainfall in January
Ashton, IA

Average rainfall in January - Ashton, IA
  • Average rainfall in January: 0.71"

The wettest month (with the highest rainfall) is June (3.86").
The driest month (with the least rainfall) is January (0.71").

Average rainfall days in January
Ashton, IA

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

The months with the highest number of rainy days are May and June (17.8 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in January
Ashton, IA

Average snowfall in January - Ashton, IA
  • Average snowfall in January: 3.43"

The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Ashton, IA

Average snowfall days in January - Ashton, IA
  • Average snowfall days in January: 11.8 days

The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Ashton, 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 0min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

Average sunshine days in January
Ashton, IA

Average sunshine days in January - Ashton, IA
  • Average sunshine days in January: 17.3 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (9.6 days).

Average UV index in January
Ashton, IA

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

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

Average cloud cover in January
Ashton, IA

Average cloud cover in January - Ashton, 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 July (Cloud cover 28).

Average visibility in January
Ashton, IA

Average visibility in January - Ashton, 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).

Ashton, Iowa, USA

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