January weather forecast
Saint Olaf, IA

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Weather in January

January, like December, is a freezing cold winter month in Saint Olaf, Iowa, with an average temperature varying between 10.9°F (-11.7°C) and 23.5°F (-4.7°C).

Temperature

In Saint Olaf, Iowa, the month of January registers the lowest temperatures, averaging 23.5°F (-4.7°C) at the peak and 10.9°F (-11.7°C) at the lowest.

Humidity

The months with the highest humidity are January and February, with an average relative humidity of 88%.

Rainfall

January is the month with the least rainfall in Saint Olaf, Iowa. Rain falls for 4.2 days and accumulates 1.1" (28mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall in Saint Olaf. The month with the most snowfall is January, when snow falls for 11.4 days and typically aggregates up to 5.04" (128mm) of snow.

Daylight

In January, the average length of the day in Saint Olaf is 9h and 27min.
On the first day of January in Saint Olaf, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.6h of sunshine.

UV index

The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 1 translates into the following recommendations:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What are the coldest months in Saint Olaf?

January, marked by an average high-temperature of 23.5°F (-4.7°C) and a low-temperature of 10.9°F (-11.7°C), is the coldest month.

How cold is January in Saint Olaf?

Saint Olaf in January has an average high-temperature of 23.5°F (-4.7°C) and an average low-temperature of 10.9°F (-11.7°C).

What is the most humid month in Saint Olaf?

The months with the highest humidity in Saint Olaf are January and February, with an average relative humidity of 88%.

What is the average humidity in January in Saint Olaf?

In January, the average relative humidity in Saint Olaf is 88%.

What is the driest month in Saint Olaf?

The month with the least rainfall is January, when the rain falls for 4.2 days and typically collects 1.1" (28mm) of precipitation.

How much does it rain in Saint Olaf in January?

In Saint Olaf, Iowa, during January, the rain falls for 4.2 days and regularly aggregates up to 1.1" (28mm) of precipitation.

When does it snow the most in Saint Olaf?

January is the month with the most snowfall in Saint Olaf, Iowa. Snow falls for 11.4 days and accumulates 5.04" (128mm) of snow.

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

In Saint Olaf, Iowa, in January, snow falls for 11.4 days, with typically accumulated 5.04" (128mm) of snow.

How many hours of daylight does Saint Olaf have in January?

In January, the average day length is 9h and 27min.

When are sunrise and sunset in January in Saint Olaf?

On the first day of January in Saint Olaf, sunrise is at 7:36 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 5:16 pm CST.

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

January has the least sunshine of the year in Saint Olaf, with an average of 3.6h of sunshine.

How many hours of sunshine does Saint Olaf have in January?

In Saint Olaf, the average sunshine duration in January is 3.6h.

What are the months with the lowest UV index in Saint Olaf?

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

How high is the UV index in January in Saint Olaf?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
30°F -1.1°C
23.5°F -4.7°C
27.1°F -2.7°C
Average low temperature
19.9°F -6.7°C
10.9°F -11.7°C
13.8°F -10.1°C
Average pressure
30.1" 765mmHg
30.13" 765mmHg
30.12" 765mmHg
Average wind speed
9.6mph 15.4km/h
9.9mph 15.9km/h
9.9mph 15.9km/h
Average max. wind speed
10.3mph 16.6km/h
10.6mph 17.1km/h
10.6mph 17.1km/h
Average wind speed gusts
15.2mph 24.5km/h
16mph 25.7km/h
16mph 25.7km/h
Average humidity
83%
88%
88%
Average rainfall
1.5" 38mm
1.1" 28mm
1.22" 31mm
Average rainfall days
5.2
4.2
3.6
Average snowfall
3.39" 86mm
5.04" 128mm
4.88" 124mm
Average snowfall days
10.5
11.4
10.8
Average daylight
9h 1min
9h 2min
10h 4min
Average sunshine
4h 1min
3h 4min
3h 5min
Average sunshine days
16.9
16.3
14.6
Average UV index
1
1
2
Average cloud cover
59%
63%
59%
Average visibility
6mi 9.7km
5mi 8km
5mi 8km

Average temperature in January
Saint Olaf, IA

Average temperature in January - Saint Olaf, IA
  • Average high temperature in January: 23.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in January: 10.9°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 (10.9°F).

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Average pressure in January
Saint Olaf, IA

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

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Average wind speed in January
Saint Olaf, IA

Average wind speed in January - Saint Olaf, IA
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in January
Saint Olaf, IA

Average humidity in January - Saint Olaf, IA
  • Average humidity in January: 88%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (75%).

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Average rainfall in January
Saint Olaf, IA

Average rainfall in January - Saint Olaf, IA
  • Average rainfall in January: 1.1"

The wettest month (with the highest rainfall) is June (4.25").
The driest month (with the least rainfall) is January (1.1").

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Average rainfall days in January
Saint Olaf, IA

Average rainfall days in January - Saint Olaf, IA
  • Average rainfall days in January: 4.2 days

The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (3.6 days).

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Average snowfall in January
Saint Olaf, IA

Average snowfall in January - Saint Olaf, IA
  • Average snowfall in January: 5.04"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Saint Olaf, IA

Average snowfall days in January - Saint Olaf, IA
  • Average snowfall days in January: 11.4 days

The month with the highest number of snowfall days is January (11.4 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 Olaf, IA

Average daylight in January / Average sunshine in January - Saint Olaf, 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 4min

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Saint Olaf, IA

Average sunshine days in January - Saint Olaf, IA
  • Average sunshine days in January: 16.3 days

The month with the most sunshine days is November (18.6 days).
The month with the least sunshine days is June (8.9 days).

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Average UV index in January
Saint Olaf, IA

Average UV index in January - Saint Olaf, 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, November and December (UV index 1).

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Average cloud cover in January
Saint Olaf, IA

Average cloud cover in January - Saint Olaf, 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 31).

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Average visibility in January
Saint Olaf, IA

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

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

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Saint Olaf, Iowa, USA

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