January weather forecast
Saint Lucas, IA

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Weather in January

January, the same as December, in Saint Lucas, Iowa, is another subzero cold winter month, with temperature in the range of an average high of 22.8°F (-5.1°C) and an average low of 10.6°F (-11.9°C).

Temperature

The coldest month is January, with an average high-temperature of 22.8°F (-5.1°C) and an average low-temperature of 10.6°F (-11.9°C).

Humidity

With an average relative humidity of 89%, January is the most humid month in Saint Lucas, Iowa.

Rainfall

January is the month with the least rainfall. Rain falls for 4.5 days and accumulates 1.18" (30mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Saint Lucas, during January, snow falls for 14.5 days and regularly aggregates up to 5.31" (135mm) of snow. Throughout the year, there are 59.9 snowfall days, and 24.84" (631mm) of snow is accumulated.

Daylight

The average length of the day in January is 9h and 26min.
On the first day of January, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:18 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 3.5h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Saint Lucas. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.
Note: The daily high UV index of 1 in January translates into this advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. When the Sun is at its strongest around midday, find shade and limit exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest time of year in Saint Lucas?

Saint Lucas experiences its average lowest temperatures in January, reaching a peak of 22.8°F (-5.1°C) and a minimum of 10.6°F (-11.9°C).

How cold is January in Saint Lucas?

The high-temperature, in January, in Saint Lucas, is 22.8°F (-5.1°C), while the low-temperature averages to 10.6°F (-11.9°C).

What is the most humid month in Saint Lucas?

With an average relative humidity of 89%, January is the most humid month in Saint Lucas, Iowa.

What is the average humidity in January in Saint Lucas?

In January, the average relative humidity is 89%.

What is the driest month in Saint Lucas?

The month with the least rainfall in Saint Lucas is January, when the rain falls for 4.5 days and typically collects 1.18" (30mm) of precipitation.

How much does it rain in Saint Lucas in January?

In Saint Lucas, in January, it is raining for 4.5 days, with typically 1.18" (30mm) of accumulated precipitation.

How many days does it snow in January in Saint Lucas?

In Saint Lucas, in January, snow falls for 14.5 days, with typically accumulated 5.31" (135mm) of snow.

What is the average length of the day in January in Saint Lucas?

The average day length in January is 9h and 26min.

When is the sunrise / sunset in January in Saint Lucas?

In January, on the first day of the month, sunrise is at 7:39 am and sunset at 4:43 pm. On the last day of the month, in Saint Lucas, Iowa, sunrise is at 7:24 am and sunset at 5:18 pm CST.

What is the month with the least sunshine in Saint Lucas?

With an average of 3.5h of sunshine, January has the least sunshine of the year in Saint Lucas.

How long on average sun shines in January in Saint Lucas?

The average sunshine duration in January in Saint Lucas is 3.5h.

When is the lowest UV index in Saint Lucas?

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

What is the UV index reading in January in Saint Lucas?

In Saint Lucas, Iowa, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
29.5°F -1.4°C
22.8°F -5.1°C
26.1°F -3.3°C
Average low temperature
18.9°F -7.3°C
10.6°F -11.9°C
13.6°F -10.2°C
Average pressure
30.11" 765mmHg
30.14" 766mmHg
30.13" 765mmHg
Average wind speed
10mph 16.1km/h
10.4mph 16.7km/h
10.4mph 16.7km/h
Average max. wind speed
10.7mph 17.2km/h
11.1mph 17.9km/h
11.1mph 17.9km/h
Average wind speed gusts
15.8mph 25.4km/h
16.7mph 26.9km/h
16.7mph 26.9km/h
Average humidity
84%
89%
88%
Average rainfall
1.69" 43mm
1.18" 30mm
1.34" 34mm
Average rainfall days
5.8
4.5
4.3
Average snowfall
5.04" 128mm
5.31" 135mm
6.5" 165mm
Average snowfall days
13.1
14.5
13
Average daylight
9h 1min
9h 2min
10h 4min
Average sunshine
4h 0min
3h 3min
3h 4min
Average sunshine days
14.2
13.6
12.4
Average UV index
1
1
2
Average cloud cover
60%
63%
60%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Saint Lucas, IA

Average temperature in January - Saint Lucas, IA
  • Average high temperature in January: 22.8°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in January: 10.6°F

The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).

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Average pressure in January
Saint Lucas, IA

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

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Average wind speed in January
Saint Lucas, IA

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

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
Saint Lucas, IA

Average humidity in January - Saint Lucas, IA
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (75%).

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Average rainfall in January
Saint Lucas, IA

Average rainfall in January - Saint Lucas, IA
  • Average rainfall in January: 1.18"

The wettest month (with the highest rainfall) is June (5.08").
The driest month (with the least rainfall) is January (1.18").

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Average rainfall days in January
Saint Lucas, IA

Average rainfall days in January - Saint Lucas, IA
  • Average rainfall days in January: 4.5 days

The months with the highest number of rainy days are May and June (19.8 days).
The month with the least rainy days is February (4.3 days).

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Average snowfall in January
Saint Lucas, IA

Average snowfall in January - Saint Lucas, IA
  • Average snowfall in January: 5.31"

The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Saint Lucas, IA

Average snowfall days in January - Saint Lucas, IA
  • Average snowfall days in January: 14.5 days

The month with the highest number of snowfall days is January (14.5 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
Saint Lucas, IA

Average daylight in January / Average sunshine in January - Saint Lucas, IA
  • Average daylight in January: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in January: 3h and 3min

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).

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Average sunshine days in January
Saint Lucas, IA

Average sunshine days in January - Saint Lucas, IA
  • Average sunshine days in January: 13.6 days

The month with the most sunshine days is November (16.2 days).
The month with the least sunshine days is June (7.9 days).

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Average UV index in January
Saint Lucas, IA

Average UV index in January - Saint Lucas, IA
  • Average UV index in January: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Saint Lucas, IA

Average cloud cover in January - Saint Lucas, IA
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in January
Saint Lucas, IA

Average visibility in January - Saint Lucas, IA
  • Average visibility in January: 5mi

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

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Saint Lucas, Iowa, USA

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