January weather forecast
Rome, IA

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Weather in January

January, like December, is another subzero cold winter month in Rome, Iowa, with an average temperature varying between 29.7°F (-1.3°C) and 17.4°F (-8.1°C).

Temperature

With average temperatures fluctuating between a high of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C), January stands out as the coldest month.

Humidity

The average relative humidity in January is 81%.

Rainfall

In Rome, in January, it is raining for 5.3 days, with typically 1.42" (36mm) of accumulated precipitation. Throughout the year, in Rome, there are 140.1 rainfall days, and 29.92" (760mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. The month with the most snowfall is January, when snow falls for 9.6 days and typically aggregates up to 4.76" (121mm) of snow.

Daylight

In Rome, the average length of the day in January is 9h and 38min.
On the first day of January, sunrise is at 7:31 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:21 pm CST.

Sunshine

With an average of 4h of sunshine, January has the least sunshine of the year in Rome.

UV index

The month with the lowest UV index in Rome is January, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index of 1 during January translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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Frequently asked questions

What part of the year is the coldest in Rome?

January is Rome's coldest month, registering average high temperatures of 29.7°F (-1.3°C) and lows of 17.4°F (-8.1°C).

How cold is it in Rome in January?

January temperatures vary between a high-temperature of 29.7°F (-1.3°C) and a low-temperature of 17.4°F (-8.1°C).

What is the average humidity in January in Rome?

The average relative humidity in January in Rome is 81%.

How many days does it rain in January in Rome?

In January, the rain falls for 5.3 days. Throughout January, 1.42" (36mm) of precipitation is accumulated.

What is the snowiest month in Rome?

The month with the most snowfall in Rome is January, when snow falls for 9.6 days and typically aggregates up to 4.76" (121mm) of snow.

How much does it snow in Rome in January?

In Rome, Iowa, in January, during 9.6 snowfall days, 4.76" (121mm) of snow is typically accumulated.

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

In January, the average day length in Rome is 9h and 38min.

When are sunrise and sunset in January in Rome?

On the first day of January in Rome, Iowa, sunrise is at 7:31 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:21 pm CST.

What is the month with the least sunshine in Rome?

January has the least sunshine of the year in Rome, Iowa, with an average of 4h of sunshine.

How long on average sun shines in January in Rome?

In Rome, the average sunshine duration in January is 4h.

When is the lowest UV index in Rome?

With an average maximum UV index of 1, January is the month with the lowest UV index in Rome, Iowa.

What is the UV index reading in January in Rome?

In January, the average daily maximum UV index in Rome is 1. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's 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
Rome, IA

Average temperature in January - Rome, IA
  • Average high temperature in January: 29.7°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in January: 17.4°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in January
Rome, IA

Average pressure in January - Rome, 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 (29.9"Hg).

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Average wind speed in January
Rome, IA

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

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in January
Rome, IA

Average humidity in January - Rome, IA
  • Average humidity in January: 81%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Rome, IA

Average rainfall in January - Rome, IA
  • Average rainfall in January: 1.42"

The wettest month (with the highest rainfall) is May (4.29").
The driest months (with the least rainfall) are February and December (1.38").

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Average rainfall days in January
Rome, IA

Average rainfall days in January - Rome, IA
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (4.6 days).

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Average snowfall in January
Rome, IA

Average snowfall in January - Rome, IA
  • Average snowfall in January: 4.76"

The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Rome, IA

Average snowfall days in January - Rome, IA
  • Average snowfall days in January: 9.6 days

The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Rome, 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 18min).

  • Average sunshine in January: 4h

The month with the most sunshine is July (Average sunshine: 10h).
The month with the least sunshine is January (Average sunshine: 4h).

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Average sunshine days in January
Rome, IA

Average sunshine days in January - Rome, IA
  • Average sunshine days in January: 16.2 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is May (10.6 days).

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Average UV index in January
Rome, IA

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

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

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Average cloud cover in January
Rome, IA

Average cloud cover in January - Rome, IA
  • Average cloud cover in January: 56

The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in January
Rome, IA

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

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

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Rome, Iowa, USA

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