January weather forecast
Swea City, IA

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Weather in January

January, the same as December, in Swea City, Iowa, is another subzero cold winter month, with an average temperature ranging between max 22.1°F (-5.5°C) and min 9.1°F (-12.7°C).

Temperature

In Swea City, the lowest average temperatures are observed in January, with a high of 22.1°F (-5.5°C) and a low of 9.1°F (-12.7°C).

Humidity

The most humid month is January, with an average relative humidity of 89%.

Rainfall

January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 0.87" (22mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. In Swea City, during January, snow falls for 13.9 days and regularly aggregates up to 4.57" (116mm) of snow. In Swea City, during the entire year, snow falls for 57.5 days and aggregates up to 23.31" (592mm) of snow.

Daylight

The average length of the day in January in Swea City is 9h and 24min.
On the first day of January, sunrise is at 7:49 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:27 pm CST.

Sunshine

With an average of 3.7h of sunshine, January has the least sunshine of the year in Swea City.

UV index

January, February and November, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 1 during January leads to these advisories:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What are the coldest months in Swea City?

The month of January sees the average lowest temperatures, reaching 22.1°F (-5.5°C) at the peak and 9.1°F (-12.7°C) at the low.

How cold is it in Swea City in January?

Swea City in January has an average high-temperature of 22.1°F (-5.5°C) and an average low-temperature of 9.1°F (-12.7°C).

What is the most humid month in Swea City?

January is the most humid month in Swea City, with an average relative humidity of 89%.

What is the average humidity in January in Swea City?

In Swea City, Iowa, the average relative humidity in January is 89%.

What is the driest month in Swea City?

January is the month with the least rainfall in Swea City. Rain falls for 3.4 days and accumulates 0.87" (22mm) of precipitation.

How much does it rain in Swea City in January?

In Swea City, Iowa, in January, during 3.4 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

How much does it snow in Swea City in January?

In Swea City, Iowa, in January, snow falls for 13.9 days, with typically accumulated 4.57" (116mm) of snow.

What is the average length of the day in January in Swea City?

In Swea City, the average day length in January is 9h and 24min.

What time are sunrise and sunset in January in Swea City?

On the first day of January in Swea City, sunrise is at 7:49 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:27 pm CST.

What is the month with the least sunshine in Swea City?

With an average of 3.7h of sunshine, January has the least sunshine of the year in Swea City, Iowa.

How many hours of sunshine does Swea City have in January?

In Swea City, the average sunshine duration in January is 3.7h.

What are the months with the lowest UV index in Swea City?

January, February and November, with an average maximum UV index of 1, are months with the lowest UV index in Swea City, Iowa.

What is the UV index intensity in January in Swea City?

In Swea City, Iowa, the average daily maximum UV index in January is 1. A UV Index value of 2, and less, symbolizes a low health threat from exposure to Sun's UV rays.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
27°F -2.8°C
22.1°F -5.5°C
26.1°F -3.3°C
Average low temperature
16.2°F -8.8°C
9.1°F -12.7°C
12.6°F -10.8°C
Average pressure
30.12" 765mmHg
30.15" 766mmHg
30.14" 766mmHg
Average wind speed
10.3mph 16.6km/h
10.7mph 17.2km/h
10.8mph 17.4km/h
Average max. wind speed
11mph 17.7km/h
11.4mph 18.3km/h
11.6mph 18.7km/h
Average wind speed gusts
16.3mph 26.2km/h
17mph 27.4km/h
16.8mph 27km/h
Average humidity
86%
89%
86%
Average rainfall
1.38" 35mm
0.87" 22mm
1.14" 29mm
Average rainfall days
5.1
3.4
3.3
Average snowfall
3.9" 99mm
4.57" 116mm
6.02" 153mm
Average snowfall days
13.4
13.9
11.8
Average daylight
9h 0min
9h 2min
10h 3min
Average sunshine
4h 1min
3h 4min
4h 2min
Average sunshine days
15.3
15.3
14.7
Average UV index
2
1
1
Average cloud cover
58%
60%
56%
Average visibility
5mi 8km
5mi 8km
6mi 9.7km

Average temperature in January
Swea City, IA

Average temperature in January - Swea City, IA
  • Average high temperature in January: 22.1°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.1°F).

  • Average low temperature in January: 9.1°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).

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Average pressure in January
Swea City, IA

Average pressure in January - Swea City, IA
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in January
Swea City, IA

Average wind speed in January - Swea City, IA
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is February (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).

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Average humidity in January
Swea City, IA

Average humidity in January - Swea City, IA
  • Average humidity in January: 89%

The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in January
Swea City, IA

Average rainfall in January - Swea City, IA
  • Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.87").

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Average rainfall days in January
Swea City, IA

Average rainfall days in January - Swea City, IA
  • Average rainfall days in January: 3.4 days

The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.3 days).

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Average snowfall in January
Swea City, IA

Average snowfall in January - Swea City, IA
  • Average snowfall in January: 4.57"

The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Swea City, IA

Average snowfall days in January - Swea City, IA
  • Average snowfall days in January: 13.9 days

The month with the highest number of snowfall days is January (13.9 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
Swea City, IA

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Swea City, IA

Average sunshine days in January - Swea City, IA
  • Average sunshine days in January: 15.3 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (8.5 days).

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Average UV index in January
Swea City, IA

Average UV index in January - Swea City, IA
  • Average UV index in January: 1

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

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Average cloud cover in January
Swea City, IA

Average cloud cover in January - Swea City, IA
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 31).

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Average visibility in January
Swea City, IA

Average visibility in January - Swea City, IA
  • Average visibility in January: 5mi

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

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Swea City, Iowa, USA

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