January weather forecast
Casey, IA

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Weather in January

January, the same as December, in Casey, Iowa, is a freezing cold winter month, with an average temperature fluctuating between 28°F (-2.2°C) and 14.5°F (-9.7°C).

Temperature

In Casey, the month of January is known for its lowest average temperatures, reaching a high of 28°F (-2.2°C) and a low of 14.5°F (-9.7°C).

Humidity

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

Rainfall

The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.55" (14mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Casey, in January, during 8.8 snowfall days, 2.32" (59mm) of snow is typically accumulated. Throughout the year, there are 31.7 snowfall days, and 9.29" (236mm) of snow is accumulated.

Daylight

In Casey, the average length of the day in January is 9h and 35min.
On the first day of January, sunrise is at 7:44 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:32 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.3h of sunshine.

UV index

January and December, 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 minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 1 in January suggests the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.

Frequently asked questions

What month is the coldest?

January, having an average high-temperature of 28°F (-2.2°C) and an average low-temperature of 14.5°F (-9.7°C), is the coldest month in Casey.

How cold is it in January?

In Casey, in January, the average high-temperature is 28°F (-2.2°C), and the average low-temperature is 14.5°F (-9.7°C).

What is the most humid month in Casey?

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

What is the average humidity in January?

The average relative humidity in January is 82%.

What is the driest month?

January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.55" (14mm) of precipitation.

How much does it rain in January?

In Casey, during January, the rain falls for 3.3 days and regularly aggregates up to 0.55" (14mm) of precipitation.

How much does it snow in January?

In Casey, in January, during 8.8 snowfall days, 2.32" (59mm) of snow is typically accumulated.

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

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

When is the sunrise / sunset in January?

On the first day of January in Casey, sunrise is at 7:44 am and sunset at 4:58 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 5:32 pm CST.

What is the month with the least sunshine?

With an average of 4.3h of sunshine, January has the least sunshine of the year in Casey.

How long on average sun shines in January?

In January, the average sunshine duration is 4.3h.

When is the lowest UV index?

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

What is the UV index intensity in January?

In Casey, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability 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
Casey, IA

Average temperature in January - Casey, IA
  • Average high temperature in January: 28°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in January: 14.5°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

Average pressure in January
Casey, IA

Average pressure in January - Casey, 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).

Average wind speed in January
Casey, IA

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

The windiest months (with the highest average wind speed) are January and February (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

Average humidity in January
Casey, IA

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

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Casey, IA

Average rainfall in January - Casey, IA
  • Average rainfall in January: 0.55"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.55").

Average rainfall days in January
Casey, IA

Average rainfall days in January - Casey, IA
  • Average rainfall days in January: 3.3 days

The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is February (2.9 days).

Average snowfall in January
Casey, IA

Average snowfall in January - Casey, IA
  • Average snowfall in January: 2.32"

The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in January
Casey, IA

Average snowfall days in January - Casey, IA
  • Average snowfall days in January: 8.8 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Casey, 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 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).

Average sunshine days in January
Casey, IA

Average sunshine days in January - Casey, IA
  • Average sunshine days in January: 19.9 days

The month with the most sunshine days is December (22 days).
The month with the least sunshine days is May (12.1 days).

Average UV index in January
Casey, IA

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

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

Average cloud cover in January
Casey, IA

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

Average visibility in January
Casey, IA

Average visibility in January - Casey, IA
  • Average visibility in January: 6mi

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

Casey, Iowa, USA

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