January weather forecast
Martensdale, IA

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Weather in January

January, the same as December, in Martensdale, Iowa, is another subzero 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

The coldest month is January, with an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 15.3°F (-9.3°C).

Humidity

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

Rainfall

In Martensdale, in January, during 3.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, there are 118.9 rainfall days, and 18.62" (473mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Martensdale are January through May, October through December. In Martensdale, during January, snow falls for 9.7 days and regularly aggregates up to 2.99" (76mm) of snow. Throughout the year, there are 31.9 snowfall days, and 10.12" (257mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 35min.
On the first day of January in Martensdale, sunrise is at 7:40 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 5:29 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 4.3h of sunshine.

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 unsafe exposure to UV radiation for the average person.
Note: In January, a daily maximum UV index of 1 leads to the following instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

Martensdale 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).

How cold is it in January?

The average high-temperature, in January, in Martensdale, is 28.8°F (-1.8°C), while the average low-temperature is 15.3°F (-9.3°C).

What is the most humid month?

January 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%.

How much does it rain in January?

In January, in Martensdale, Iowa, the rain falls for 3.4 days. Throughout January, 0.63" (16mm) of precipitation is accumulated.

How many days does it snow in January in Martensdale?

In Martensdale, during January, snow falls for 9.7 days and regularly aggregates up to 2.99" (76mm) of snow.

How many hours of daylight does Martensdale have in January?

In Martensdale, the average day length in January is 9h and 35min.

When are sunrise and sunset in January?

In January, on the first day of the month, sunrise is at 7:40 am and sunset at 4:55 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?

January has the least sunshine of the year, with an average of 4.3h of sunshine.

How long on average sun shines in January?

The average sunshine duration in January is 4.3h.

What is the month with the lowest UV index?

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

What is the UV index intensity in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health risk 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
Martensdale, IA

Average temperature in January - Martensdale, IA
  • Average high temperature in January: 28.8°F

The warmest month (with the highest average high temperature) is July (83.1°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 (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in January
Martensdale, IA

Average pressure in January - Martensdale, 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 (29.89"Hg).

Average wind speed in January
Martensdale, IA

Average wind speed in January - Martensdale, IA
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in January
Martensdale, IA

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

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

Average rainfall in January
Martensdale, IA

Average rainfall in January - Martensdale, IA
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (0.55").

Average rainfall days in January
Martensdale, IA

Average rainfall days in January - Martensdale, IA
  • Average rainfall days in January: 3.4 days

The months with the highest number of rainy days are May and June (15.9 days).
The month with the least rainy days is January (3.4 days).

Average snowfall in January
Martensdale, IA

Average snowfall in January - Martensdale, IA
  • Average snowfall in January: 2.99"

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

Average snowfall days in January
Martensdale, IA

Average snowfall days in January - Martensdale, IA
  • Average snowfall days in January: 9.7 days

The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Martensdale, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in January
Martensdale, IA

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

The month with the most sunshine days is December (21.9 days).
The month with the least sunshine days is June (11 days).

Average UV index in January
Martensdale, IA

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

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

Average cloud cover in January
Martensdale, IA

Average cloud cover in January - Martensdale, IA
  • Average cloud cover in January: 53

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in January
Martensdale, IA

Average visibility in January - Martensdale, 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).

Martensdale, Iowa, USA

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