January weather forecast
Middletown, IA

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Weather in January

January, the same as December, in Middletown, Iowa, is another subzero cold winter month, with an average temperature ranging between max 30°F (-1.1°C) and min 18°F (-7.8°C).

Temperature

The coldest period tends to be January, when average temperatures fluctuate between a high of 30°F (-1.1°C) and a low of 18°F (-7.8°C).

Humidity

The average relative humidity in January is 80%.

Rainfall

In Middletown, in January, during 5.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Middletown, during the entire year, the rain falls for 137.6 days and collects up to 26.65" (677mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 9.8 days and typically aggregates up to 4.25" (108mm) of snow.

Daylight

In Middletown, the average length of the day in January is 9h and 38min.
On the first day of the month, sunrise is at 7:29 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

With an average maximum UV index of 1, January is the month with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 1 in January transforms into the following instructions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jun 14, 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 month of January, characterized by an average high of 30°F (-1.1°C) and a low of 18°F (-7.8°C), is recognized as the coldest.

How cold is January?

The average high-temperature and low-temperature during January are 30°F (-1.1°C) and 18°F (-7.8°C) respectively.

What is the average humidity in January?

The average relative humidity in January is 80%.

How many days does it rain in January?

In Middletown, in January, during 5.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 9.8 days and typically aggregates up to 4.25" (108mm) of snow.

How much does it snow in January?

In Middletown, in January, snow falls for 9.8 days, with typically accumulated 4.25" (108mm) of snow.

How many hours of daylight does Middletown have in January?

In Middletown, the average day length in January is 9h and 38min.

When are sunrise and sunset in January?

On the first day of January, sunrise is at 7:29 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?

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

How many hours of sunshine does Middletown have in January?

In Middletown, the average sunshine duration in January is 4.2h.

When is the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Middletown, IA

Average temperature in January - Middletown, IA
  • Average high temperature in January: 30°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 (30°F).

  • Average low temperature in January: 18°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 (18°F).

Average pressure in January
Middletown, IA

Average pressure in January - Middletown, 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
Middletown, IA

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

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).

Average humidity in January
Middletown, IA

Average humidity in January - Middletown, IA
  • Average humidity in January: 80%

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

Average rainfall in January
Middletown, IA

Average rainfall in January - Middletown, IA
  • Average rainfall in January: 1.34"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (1.3").

Average rainfall days in January
Middletown, IA

Average rainfall days in January - Middletown, IA
  • Average rainfall days in January: 5.7 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in January
Middletown, IA

Average snowfall in January - Middletown, IA
  • Average snowfall in January: 4.25"

The month with the highest snowfall is January (4.25").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Middletown, IA

Average snowfall days in January - Middletown, IA
  • Average snowfall days in January: 9.8 days

The month with the highest number of snowfall days is January (9.8 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
Middletown, IA

Average daylight in January / Average sunshine in January - Middletown, 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 months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Middletown, IA

Average sunshine days in January - Middletown, IA
  • Average sunshine days in January: 16.8 days

The months with the most sunshine days are October and November (19.3 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in January
Middletown, IA

Average UV index in January - Middletown, 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
Middletown, IA

Average cloud cover in January - Middletown, IA
  • Average cloud cover in January: 54

The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 29).

Average visibility in January
Middletown, IA

Average visibility in January - Middletown, 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).

Middletown, Iowa, USA

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