Climate and monthly weather forecast
Waterloo, IN

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Weather in January

January, like December, is another subzero cold winter month in Waterloo, Indiana, with temperature in the range of an average high of 29.8°F (-1.2°C) and an average low of 18.5°F (-7.5°C). January is the coldest month, exhibiting average temperatures of 29.8°F (-1.2°C) at the peak and 18.5°F (-7.5°C) at the base. Weather in January »

Weather in February

The last month of the winter, February, is a cold month in Waterloo, Indiana, with an average temperature ranging between max 33.6°F (0.9°C) and min 21°F (-6.1°C). February notes an average high-temperature of an icy 33.6°F (0.9°C), subtly differing from January's 29.8°F (-1.2°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Waterloo, Indiana, with an average temperature varying between 30.6°F (-0.8°C) and 45.5°F (7.5°C). The rise of average high-temperatures is seen in March, with an increase from an icy 33.6°F (0.9°C) in February to a chilly 45.5°F (7.5°C). Weather in March »

Weather in April

April is a mild spring month in Waterloo, Indiana, with temperature in the range of an average low of 40.1°F (4.5°C) and an average high of 56.8°F (13.8°C). In Waterloo, stepping into April brings a temperature increase, moving up from March's chilly 45.5°F (7.5°C) to a moderate 56.8°F (13.8°C). Weather in April »

Weather in May

May, the last month of the spring in Waterloo, is a pleasant month, with an average temperature ranging between max 68.9°F (20.5°C) and min 52.2°F (11.2°C). The arrival of May sees a shift in the average high-temperature, moving from a moderate 56.8°F (13.8°C) in April to a pleasant 68.9°F (20.5°C). Weather in May »

Weather in June

June, the first month of the summer in Waterloo, is a moderately hot month, with an average temperature ranging between max 77°F (25°C) and min 60.1°F (15.6°C). The start of June signals a slight increase in the average high-temperature, moving from a pleasant 68.9°F (20.5°C) in May to a moderately hot 77°F (25°C). Weather in June »

Weather in July

July, like June, in Waterloo, Indiana, is another warm summer month, with an average temperature varying between 80.1°F (26.7°C) and 62.8°F (17.1°C). Waterloo witnesses the warmest weather in July, with temperatures averaging a high of 80.1°F (26.7°C) and a low of 62.8°F (17.1°C). Weather in July »

Weather in August

August, the last month of the summer in Waterloo, is another warm month, with an average temperature varying between 78.4°F (25.8°C) and 61°F (16.1°C). Waterloo experiences an average high-temperature of a still moderately hot 78.4°F (25.8°C) in August, subtly different from July's 80.1°F (26.7°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a pleasant month in Waterloo, Indiana, with temperature in the range of an average low of 55.2°F (12.9°C) and an average high of 72.7°F (22.6°C). The commencement of September indicates a gentle shift in the average high-temperature, receding from August's moderately hot 78.4°F (25.8°C) to a pleasant 72.7°F (22.6°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Waterloo, Indiana, with an average temperature varying between 60.3°F (15.7°C) and 45°F (7.2°C). October's onset corresponds with a shift in the average high-temperature, moving from a pleasant 72.7°F (22.6°C) in September to a refreshing 60.3°F (15.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Waterloo, is another chilly month, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 33.4°F (0.8°C). In Waterloo, the average high-temperature in November drops from a refreshing 60.3°F (15.7°C) in October to a chilly 46.4°F (8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Waterloo, Indiana, with an average temperature ranging between max 35.8°F (2.1°C) and min 26.1°F (-3.3°C). With December's arrival, Waterloo's weather changes as the average high-temperature falls from a chilly 46.4°F (8°C) in November to a wintry 35.8°F (2.1°C). Weather in December »
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Frequently asked questions

What month is the coldest in Waterloo?

January tends to be the coldest month in Waterloo, with temperatures averaging a daily high of 29.8°F (-1.2°C) and a low of 18.5°F (-7.5°C).

What is the most humid month in Waterloo?

January and February, with an average relative humidity of 85%, are most humid months in Waterloo.

What is the driest month in Waterloo?

January and December are months with the least rain in Waterloo when the rain falls for 6.8 days and typically aggregates up to 1.34" (34mm) of rain.

How much does it rain in Waterloo?

Throughout the year, in Waterloo, Indiana, there are 157.1 rainfall days, and 24.09" (612mm) of precipitation is accumulated.

When does it snow in Waterloo?

January through May, October through December are months with snowfall.

How many days does it snow in Waterloo?

Throughout the year, in Waterloo, there are 54.1 snowfall days, and 13.43" (341mm) of snow is accumulated.

What is the month with the least sunshine in Waterloo?

January has the least sunshine of the year, with an average of 3.2h of sunshine.

When does it snow the most in Waterloo?

The month with the most snowfall is February, when snow falls for 13 days and typically aggregates up to 3.27" (83mm) of snow.

When is Daylight Saving Time (DST) in Waterloo?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Waterloo, Indiana, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.

What is the wettest month in Waterloo?

The month with the most rainfall is May, when the rain falls for 18.3 days and typically aggregates up to 3.11" (79mm) of precipitation.

When it does not snow in Waterloo?

In Waterloo, snow does not fall in June through September.

When are the longest days in Waterloo?

With an average of 15h and 6min of daylight, June has the longest days of the year in Waterloo.

When is the highest UV index in Waterloo?

June is the month with the highest UV index in Waterloo, Indiana, with an average maximum UV index of 6.

What part of the year is the hottest in Waterloo?

Waterloo's temperatures peak on average in July, reaching 80.1°F (26.7°C) at their highest and 62.8°F (17.1°C) at their lowest.

What month has the most sunshine in Waterloo?

With an average of 10.1h of sunshine, July has the most sunshine of the year.

What is the least humid month in Waterloo?

The least humid month in Waterloo is October, with an average relative humidity of 76%.

What is the month with the shortest days in Waterloo?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

When is the lowest UV index in Waterloo?

With an average maximum UV index of 1, December is the month with the lowest UV index in Waterloo.

Average temperature
Waterloo, IN

Average temperature - Waterloo, IN

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.8°F).

The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

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Average pressure
Waterloo, IN

Average pressure - Waterloo, IN

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Waterloo, IN

Average wind speed - Waterloo, IN

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).

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Average humidity
Waterloo, IN

Average humidity - Waterloo, IN

The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall
Waterloo, IN

Average rainfall - Waterloo, IN

The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are January and December (1.34").

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Average rainfall days
Waterloo, IN

Average rainfall days - Waterloo, IN

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall
Waterloo, IN

Average snowfall - Waterloo, IN

The month with the highest snowfall is February (3.27").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Waterloo, IN

Average snowfall days - Waterloo, IN

The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Waterloo, IN

Average daylight / Average sunshine - Waterloo, IN

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 12min).

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 12min).

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Average sunshine days
Waterloo, IN

Average sunshine days - Waterloo, IN

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (9.9 days).

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Average visibility
Waterloo, IN

Average visibility - Waterloo, IN

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

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Waterloo, Indiana, USA

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