January weather forecast
Waterloo, OH

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Weather in January

January, like December, in Waterloo, Ohio, is an icy winter month, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 24.3°F (-4.3°C).

Temperature

Waterloo experiences its lowest average temperatures in January, reaching a peak of 37.9°F (3.3°C) and a minimum of 24.3°F (-4.3°C).

Humidity

In Waterloo, the average relative humidity in January is 81%.

Rainfall

In Waterloo, Ohio, in January, during 10.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 149 rainfall days, and 16.26" (413mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Waterloo are January through April, October through December. In January, it is snowing for 10.8 days. Throughout January, 1.38" (35mm) of snow is accumulated. In Waterloo, during the entire year, snow falls for 34 days and aggregates up to 6.06" (154mm) of snow.

Daylight

In January, the average length of the day in Waterloo is 9h and 50min.
On the first day of the month, sunrise is at 7:47 am and sunset at 5:18 pm. On the last day of January, in Waterloo, sunrise is at 7:36 am and sunset at 5:49 pm EST.

Sunshine

With an average of 3.8h of sunshine, January has the least sunshine of the year in Waterloo.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum high daily UV index of 2 during January translates into the following directions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. During bright days, sunglasses that offer UVA and UVB defense are recommended. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest in Waterloo?

January is the month that records the lowest temperatures in Waterloo, with averages ranging from a high of 37.9°F (3.3°C) to a low of 24.3°F (-4.3°C).

How cold is it in Waterloo in January?

In Waterloo, 37.9°F (3.3°C) is the average high-temperature and 24.3°F (-4.3°C) is the average low-temperature during January.

What is the average humidity in January in Waterloo?

In Waterloo, Ohio, the average relative humidity in January is 81%.

How many days does it rain in January in Waterloo?

In Waterloo, in January, during 10.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated.

How much does it snow in Waterloo in January?

In Waterloo, Ohio, in January, snow falls for 10.8 days, with typically accumulated 1.38" (35mm) of snow.

How many hours of daylight does Waterloo have in January?

In January, the average day length in Waterloo is 9h and 50min.

When are sunrise and sunset in January in Waterloo?

On the first day of January in Waterloo, Ohio, sunrise is at 7:47 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:49 pm EST.

What is the month with the least sunshine in Waterloo?

January has the least sunshine of the year in Waterloo, with an average of 3.8h of sunshine.

How many hours of sunshine does Waterloo have in January?

In January, the average sunshine duration in Waterloo, Ohio, is 3.8h.

When is the lowest UV index in Waterloo?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Waterloo.

What is the UV index intensity in January in Waterloo?

In January, the average daily maximum UV index in Waterloo, Ohio, is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Waterloo, OH

Average temperature in January - Waterloo, OH
  • Average high temperature in January: 37.9°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in January: 24.3°F

The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

Average pressure in January
Waterloo, OH

Average pressure in January - Waterloo, OH
  • Average pressure in January: 30.15"Hg

The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in January
Waterloo, OH

Average wind speed in January - Waterloo, OH
  • Average wind speed in January: 6.9mph

The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).

Average humidity in January
Waterloo, OH

Average humidity in January - Waterloo, OH
  • Average humidity in January: 81%

The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is August (74%).

Average rainfall in January
Waterloo, OH

Average rainfall in January - Waterloo, OH
  • Average rainfall in January: 1.02"

The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is November (0.83").

Average rainfall days in January
Waterloo, OH

Average rainfall days in January - Waterloo, OH
  • Average rainfall days in January: 10.2 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in January
Waterloo, OH

Average snowfall in January - Waterloo, OH
  • Average snowfall in January: 1.38"

The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Waterloo, OH

Average snowfall days in January - Waterloo, OH
  • Average snowfall days in January: 10.8 days

The month with the highest number of snowfall days is January (10.8 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
Waterloo, OH

Average daylight in January / Average sunshine in January - Waterloo, OH
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in January
Waterloo, OH

Average sunshine days in January - Waterloo, OH
  • Average sunshine days in January: 13.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is May (10.3 days).

Average UV index in January
Waterloo, OH

Average UV index in January - Waterloo, OH
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January
Waterloo, OH

Average cloud cover in January - Waterloo, OH
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in January
Waterloo, OH

Average visibility in January - Waterloo, OH
  • Average visibility in January: 5mi

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

Waterloo, Ohio, USA

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