January weather forecast
Ridgeport, IA

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Weather in January

January, like December, is another subzero cold winter month in Ridgeport, Iowa, with an average temperature fluctuating between 26.4°F (-3.1°C) and 13.1°F (-10.5°C).

Temperature

With its high average temperature of 26.4°F (-3.1°C) and a low of 13.1°F (-10.5°C), January is regarded as the coldest month.

Humidity

The most humid month in Ridgeport is January, with an average relative humidity of 84%.

Rainfall

January is the month with the least rainfall. Rain falls for 3.9 days and accumulates 0.67" (17mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Ridgeport. In January, it is snowing for 10.9 days. Throughout January, 2.91" (74mm) of snow is accumulated. Throughout the year, in Ridgeport, there are 39.9 snowfall days, and 10.91" (277mm) of snow is accumulated.

Daylight

In January, the average length of the day in Ridgeport is 9h and 31min.
On the first day of the month, sunrise is at 7:44 am and sunset at 4:54 pm. On the last day of January, sunrise is at 7:29 am and sunset at 5:28 pm CST.

Sunshine

The month with the least sunshine in Ridgeport is January, with an average of 4h of sunshine.

UV index

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Ridgeport. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, an average UV index of 2 transforms into the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
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Frequently asked questions

What is the coldest time of year in Ridgeport?

In Ridgeport, January registers the lowest temperatures, averaging 26.4°F (-3.1°C) at the peak and 13.1°F (-10.5°C) at the lowest.

How cold is it in Ridgeport in January?

The high-temperature, in January, in Ridgeport, records 26.4°F (-3.1°C), while the low-temperature is 13.1°F (-10.5°C).

What is the most humid month in Ridgeport?

With an average relative humidity of 84%, January is the most humid month in Ridgeport, Iowa.

What is the average humidity in January in Ridgeport?

The average relative humidity in January in Ridgeport, Iowa, is 84%.

What is the driest month in Ridgeport?

The month with the least rainfall in Ridgeport is January, when the rain falls for 3.9 days and typically collects 0.67" (17mm) of precipitation.

How many days does it rain in January in Ridgeport?

In Ridgeport, Iowa, in January, it is raining for 3.9 days, with typically 0.67" (17mm) of accumulated precipitation.

How much does it snow in Ridgeport in January?

In Ridgeport, Iowa, during January, snow falls for 10.9 days and regularly aggregates up to 2.91" (74mm) of snow.

What is the average length of the day in January in Ridgeport?

In January, the average day length in Ridgeport, Iowa, is 9h and 31min.

What time are sunrise and sunset in January in Ridgeport?

In January, on the first day of the month, sunrise is at 7:44 am and sunset at 4:54 pm. On the last day of the month, in Ridgeport, Iowa, sunrise is at 7:29 am and sunset at 5:28 pm CST.

What is the month with the least sunshine in Ridgeport?

With an average of 4h of sunshine, January has the least sunshine of the year in Ridgeport.

How many hours of sunshine does Ridgeport have in January?

In January, the average sunshine duration in Ridgeport, Iowa, is 4h.

What is the month with the lowest UV index in Ridgeport?

The months with the lowest UV index in Ridgeport, Iowa, are January, February, October through December, with an average maximum UV index of 2.

How high is the UV index in January in Ridgeport?

The average daily maximum UV index in January is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health 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
Ridgeport, IA

Average temperature in January - Ridgeport, IA
  • Average high temperature in January: 26.4°F

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (26.4°F).

  • Average low temperature in January: 13.1°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).

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Average pressure in January
Ridgeport, IA

Average pressure in January - Ridgeport, 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).

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Average wind speed in January
Ridgeport, IA

Average wind speed in January - Ridgeport, IA
  • Average wind speed in January: 10.5mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in January
Ridgeport, IA

Average humidity in January - Ridgeport, IA
  • Average humidity in January: 84%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in January
Ridgeport, IA

Average rainfall in January - Ridgeport, IA
  • Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.67").

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Average rainfall days in January
Ridgeport, IA

Average rainfall days in January - Ridgeport, IA
  • Average rainfall days in January: 3.9 days

The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3.2 days).

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Average snowfall in January
Ridgeport, IA

Average snowfall in January - Ridgeport, IA
  • Average snowfall in January: 2.91"

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Ridgeport, IA

Average snowfall days in January - Ridgeport, IA
  • Average snowfall days in January: 10.9 days

The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Ridgeport, IA
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 4h and 0min

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 0min).

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Average sunshine days in January
Ridgeport, IA

Average sunshine days in January - Ridgeport, IA
  • Average sunshine days in January: 18.4 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is June (10.5 days).

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Average UV index in January
Ridgeport, IA

Average UV index in January - Ridgeport, IA
  • Average UV index in January: 2

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in January
Ridgeport, IA

Average cloud cover in January - Ridgeport, 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 September (Cloud cover 30).

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Average visibility in January
Ridgeport, IA

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

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

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Ridgeport, Iowa, USA

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