January weather forecast
Blue Grass, IA

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Weather in January

January, the same as December, in Blue Grass, Iowa, is a freezing cold winter month, with temperature in the range of an average high of 27.7°F (-2.4°C) and an average low of 15.3°F (-9.3°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 27.7°F (-2.4°C) and a low of 15.3°F (-9.3°C).

Humidity

January is the most humid month, with an average relative humidity of 84%.

Rainfall

In Blue Grass, during January, the rain falls for 4.6 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Blue Grass, during the entire year, the rain falls for 151.1 days and collects up to 31.14" (791mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 11.6 days and typically aggregates up to 4.88" (124mm) of snow.

Daylight

The average length of the day in January in Blue Grass, Iowa, is 9h and 35min.
On the first day of January, sunrise is at 7:29 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:17 pm CST.

Sunshine

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

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.
Note: In January, the maximum UV index of 1 transforms into these recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest?

Blue Grass's January weather, with an average high temperature of 27.7°F (-2.4°C) and an average low temperature of 15.3°F (-9.3°C), tends to be the coldest of the year.

How cold is January?

The high-temperature, in January, in Blue Grass, is 27.7°F (-2.4°C), while the low-temperature averages to 15.3°F (-9.3°C).

What is the most humid month?

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

What is the average humidity in January?

The average relative humidity in January is 84%.

How many days does it rain in January?

In Blue Grass, Iowa, in January, during 4.6 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 11.6 days and accumulates 4.88" (124mm) of snow.

How many days does it snow in January?

In Blue Grass, during January, snow falls for 11.6 days and regularly aggregates up to 4.88" (124mm) of snow.

How many hours of daylight does Blue Grass have in January?

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

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:29 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 5:17 pm CST.

What is the month with the least sunshine?

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

How many hours of sunshine does Blue Grass have in January?

In January, the average sunshine duration is 4h.

When is the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes 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
Blue Grass, IA

Average temperature in January - Blue Grass, IA
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 15.3°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).

Average pressure in January
Blue Grass, IA

Average pressure in January - Blue Grass, IA
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in January
Blue Grass, IA

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

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).

Average humidity in January
Blue Grass, IA

Average humidity in January - Blue Grass, 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 (72%).

Average rainfall in January
Blue Grass, IA

Average rainfall in January - Blue Grass, IA
  • Average rainfall in January: 1.42"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is February (1.38").

Average rainfall days in January
Blue Grass, IA

Average rainfall days in January - Blue Grass, IA
  • Average rainfall days in January: 4.6 days

The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (4.6 days).

Average snowfall in January
Blue Grass, IA

Average snowfall in January - Blue Grass, IA
  • Average snowfall in January: 4.88"

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Blue Grass, IA

Average snowfall days in January - Blue Grass, IA
  • Average snowfall days in January: 11.6 days

The month with the highest number of snowfall days is January (11.6 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
Blue Grass, IA

Average daylight in January / Average sunshine in January - Blue Grass, 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 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).

Average sunshine days in January
Blue Grass, IA

Average sunshine days in January - Blue Grass, IA
  • Average sunshine days in January: 16.2 days

The month with the most sunshine days is December (17.4 days).
The months with the least sunshine days are May and June (8.3 days).

Average UV index in January
Blue Grass, IA

Average UV index in January - Blue Grass, IA
  • Average UV index in January: 1

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

Average cloud cover in January
Blue Grass, IA

Average cloud cover in January - Blue Grass, IA
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in January
Blue Grass, IA

Average visibility in January - Blue Grass, 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).

Blue Grass, Iowa, USA

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