Climate and monthly weather forecast
Newton, IA

Weather in January

January, like December, is a freezing cold winter month in Newton, Iowa, with an average temperature ranging between min 14.4°F (-9.8°C) and max 27.1°F (-2.7°C). January is the coldest month, with an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 14.4°F (-9.8°C). Weather in January »

Weather in February

The last month of the winter, February, is also a subzero cold month in Newton, Iowa, with temperature in the range of an average high of 31.5°F (-0.3°C) and an average low of 17.4°F (-8.1°C). In Newton, the average high-temperature in February is practically the same as in January - a still freezing cold 31.5°F (-0.3°C). Weather in February »

Weather in March

March, the first month of the spring in Newton, is a chilly month, with an average temperature varying between 31.5°F (-0.3°C) and 46.4°F (8°C). In March, the average high-temperature increases considerably from a freezing cold 31.5°F (-0.3°C) in February to a frosty 46.4°F (8°C). Weather in March »

Weather in April

April is a mild spring month in Newton, Iowa, with an average temperature ranging between min 41.9°F (5.5°C) and max 58.8°F (14.9°C). In Newton, the average high-temperature in April rises from a frosty 46.4°F (8°C) in March to a mild 58.8°F (14.9°C). Weather in April »

Weather in May

May, the last month of the spring in Newton, is an agreeable month, with an average temperature varying between 69.3°F (20.7°C) and 52.5°F (11.4°C). In May, the average high-temperature rises from a mild 58.8°F (14.9°C) in April to an agreeable 69.3°F (20.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Newton, Iowa, with an average temperature ranging between max 79.3°F (26.3°C) and min 62.4°F (16.9°C). In Newton, Iowa, the average high-temperature in June rises from an agreeable 69.3°F (20.7°C) in May to a moderately hot 79.3°F (26.3°C). Weather in June »

Weather in July

July, like June, in Newton, Iowa, is another warm summer month, with an average temperature fluctuating between 64.8°F (18.2°C) and 81.5°F (27.5°C). The warmest month is July, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 64.8°F (18.2°C). In July, the average heat index is computed to be a hot 88.3°F (31.3°C). Weather in July »

Weather in August

August, the last month of the summer in Newton, is another warm month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 80.6°F (27°C). In August, the average high-temperature is relatively the same as in July - a still moderately hot 80.6°F (27°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Newton, Iowa, with an average temperature ranging between min 55.8°F (13.2°C) and max 74.7°F (23.7°C). In September, the average high-temperature marginally drops from a moderately hot 80.6°F (27°C) in August to a still warm 74.7°F (23.7°C). Weather in September »

Weather in October

October, like September, is a moderate autumn month in Newton, Iowa, with an average temperature varying between 44.2°F (6.8°C) and 59.9°F (15.5°C). In Newton, the average high-temperature in October significantly decreases from a warm 74.7°F (23.7°C) in September to a moderate 59.9°F (15.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in Newton, Iowa, with an average temperature fluctuating between 32.4°F (0.2°C) and 46.9°F (8.3°C). In Newton, the average high-temperature in November drops from a moderate 59.9°F (15.5°C) in October to a frosty 46.9°F (8.3°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Newton, Iowa, with an average temperature fluctuating between 33.8°F (1°C) and 22.1°F (-5.5°C). In Newton, the average high-temperature in December decreases from a chilly 46.9°F (8.3°C) in November to a wintry 33.8°F (1°C). Weather in December »
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FAQ

What is the coldest month in Newton?

With an average high-temperature of 27.1°F (-2.7°C) and an average low-temperature of 14.4°F (-9.8°C), January is the coldest month.

What is the most humid month in Newton?

The most humid month in Newton, Iowa, is January, with an average relative humidity of 84%.

What is the driest month in Newton?

The months with the least rainfall in Newton are January, February and December Rain falls for 3.8 days and accumulates 0.39" (10mm) of rain.

How much does it rain in Newton?

In Newton, Iowa, during the entire year, the rain falls for 106.7 days and collects up to 11.77" (299mm) of precipitation.

When does it snow in Newton?

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

When does it snow the most in Newton?

January is the month with the most snowfall in Newton. Snow falls for 8.4 days and accumulates 1.73" (44mm) of snow.

How much does it snow in Newton?

Throughout the year, there are 28.8 snowfall days, and 5.28" (134mm) of snow is accumulated.

What is the month with the least sunshine in Newton?

January has the least sunshine of the year, with an average of 4.2h of sunshine.

When is the lowest UV index in Newton?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Newton.

When is Daylight Saving Time (DST) in Newton?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Newton?

May is the month with the most rainfall in Newton, Iowa. Rain falls for 14.7 days and accumulates 2.13" (54mm) of precipitation.

When it does not snow in Newton?

In Newton, Iowa, snow does not fall in June through September.

When are the longest days in Newton?

With an average of 15h and 10min of daylight, June has the longest days of the year in Newton, Iowa.

What is the month with the highest UV index in Newton?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What is the warmest month in Newton?

The warmest month is July, with an average high-temperature of 81.5°F (27.5°C) and an average low-temperature of 64.8°F (18.2°C).

What month has the most sunshine in Newton?

July has the most sunshine of the year in Newton, Iowa, with an average of 10.3h of sunshine.

What is the least humid month in Newton?

October is the least humid month in Newton, Iowa, with an average relative humidity of 71%.

What is the month with the shortest days in Newton?

December has the shortest days of the year, with an average of 9h and 13min of daylight.

Average temperature
Newton, IA

Average temperature - Newton, IA

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (27.1°F).

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).

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Average pressure
Newton, IA

Average pressure - Newton, IA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed
Newton, IA

Average wind speed - Newton, IA

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average rainfall
Newton, IA

Average rainfall - Newton, IA

The wettest month (with the highest rainfall) is May (2.13").
The driest months (with the least rainfall) are January, February and December (0.39").

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Average rainfall days
Newton, IA

Average rainfall days - Newton, IA

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall
Newton, IA

Average snowfall - Newton, IA

The month with the highest snowfall is January (1.73").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Newton, IA

Average snowfall days - Newton, IA

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Newton, IA

Average daylight / Average sunshine - Newton, IA

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 13min).

The month with the most sunshine is July (Average sunshine: 10.3h).
The month with the least sunshine is January (Average sunshine: 4.2h).

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Average sunshine days
Newton, IA

Average sunshine days - Newton, IA

The month with the most sunshine days is December (22.9 days).
The month with the least sunshine days is June (12.2 days).

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Average visibility
Newton, IA

Average visibility - Newton, IA

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

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