Climate and monthly weather forecast
New London, IA

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Weather in January

January, like December, is a freezing cold winter month in New London, Iowa, with an average temperature ranging between min 17.4°F (-8.1°C) and max 29.7°F (-1.3°C). With average high temperatures of 29.7°F (-1.3°C) and lows of 17.4°F (-8.1°C), January is the coldest month. Weather in January »

Weather in February

February, the last month of the winter in New London, is a cold month, with an average temperature ranging between max 34.3°F (1.3°C) and min 21°F (-6.1°C). New London records an average high-temperature of an icy 34.3°F (1.3°C) as February arrives, nearly mirroring the previous month's climate. Weather in February »

Weather in March

March, the first month of the spring in New London, is a chilly month, with an average temperature ranging between max 48.2°F (9°C) and min 33.3°F (0.7°C). March's arrival coincides with a temperature rise, moving from February's wintry 34.3°F (1.3°C) to a frosty 48.2°F (9°C). Weather in March »

Weather in April

April in New London, Iowa, is a refreshing spring month, with an average temperature varying between 43.3°F (6.3°C) and 60.8°F (16°C). The arrival of April brings a change in New London's weather, with average high-temperatures moving from March's frosty 48.2°F (9°C) to a comfortable 60.8°F (16°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in New London, Iowa, with an average temperature ranging between max 70.9°F (21.6°C) and min 53.8°F (12.1°C). The start of May is characterized by an increase in the average high-temperature, transitioning from a refreshing 60.8°F (16°C) in April to a pleasant 70.9°F (21.6°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in New London, Iowa, with an average temperature fluctuating between 79.9°F (26.6°C) and 63.7°F (17.6°C). New London, Iowa, sees an increase in the average high-temperature with the arrival of June, moving from May's agreeable 70.9°F (21.6°C) to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July, like June, in New London, Iowa, is a moderately hot summer month, with an average temperature ranging between max 82.4°F (28°C) and min 65.3°F (18.5°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 82.4°F (28°C) and a low of 65.3°F (18.5°C). During July, the heat index is estimated at a tropical 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in New London, is another warm month, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 81.7°F (27.6°C). With the advent of August, New London's high-temperatures adjust to a still warm 81.7°F (27.6°C), closely aligning with the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in New London, is also a moderately hot month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 76.3°F (24.6°C). New London in September experiences a gentle temperature dip, with average high-temperatures reducing from a warm 81.7°F (27.6°C) in August to a still moderately hot 76.3°F (24.6°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in New London, Iowa, with an average temperature varying between 45.7°F (7.6°C) and 61.7°F (16.5°C). The start of October is characterized by a significant decrease in the average high-temperature, moving from a warm 76.3°F (24.6°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

November, the last month of the autumn in New London, is also a frosty month, with temperature in the range of an average high of 48°F (8.9°C) and an average low of 34°F (1.1°C). The onset of November comes with a shift in the average high-temperature, falling from a comfortable 61.7°F (16.5°C) in October to a chilly 48°F (8.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in New London, Iowa, with an average temperature fluctuating between 24.6°F (-4.1°C) and 36°F (2.2°C). New London in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 48°F (8.9°C) in November to a cold 36°F (2.2°C). Weather in December »

Frequently asked questions

What month is the coldest?

In New London, the average lowest temperatures are observed in January, with a high of 29.7°F (-1.3°C) and a low of 17.4°F (-8.1°C).

How much does it rain?

In New London, during the entire year, the rain falls for 140.1 days and collects up to 29.92" (760mm) of precipitation.

When does it snow?

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

When does it snow the most?

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.

How much does it snow?

In New London, during the entire year, snow falls for 30.7 days and aggregates up to 15" (381mm) of snow.

What is the month with the least sunshine?

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

What is the month with the lowest UV index?

January is the month with the lowest UV index, with an average maximum UV index of 1.

What is the driest month?

February and December are months with the least rain when the rain falls for 4.6 days and typically aggregates up to 1.38" (35mm) of rain.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month?

May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.29" (109mm) of precipitation.

When it does not snow?

In New London, snow does not fall in May through September.

When are the longest days?

The month with the longest days is June, with an average of 15h and 6min of daylight.

What is the month with the highest UV index?

The months with the highest UV index are June through August, with an average maximum UV index of 6.

What is the hottest time of year?

July, recognised by an average high temperature of 82.4°F (28°C) and a low of 65.3°F (18.5°C), is New London's warmest month.

What is the most humid month?

The most humid month is July, with an average relative humidity of 83%.

What month has the most sunshine?

With an average of 10h of sunshine, July has the most sunshine of the year.

What is the least humid month?

With an average relative humidity of 71%, October is the least humid month.

What is the month with the shortest days?

December has the shortest days of the year in New London, with an average of 9h and 18min of daylight.

Average temperature
New London, IA

Average temperature - New London, IA

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).

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).

Average pressure
New London, IA

Average pressure - New London, IA

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed
New London, IA

Average wind speed - New London, IA

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).

Average humidity
New London, IA

Average humidity - New London, IA

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

Average rainfall
New London, IA

Average rainfall - New London, IA

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

Average rainfall days
New London, IA

Average rainfall days - New London, IA

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).

Average snowfall
New London, IA

Average snowfall - New London, IA

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

Average snowfall days
New London, IA

Average snowfall days - New London, IA

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).

Average daylight / Average sunshine
New London, IA

Average daylight / Average sunshine - New London, IA

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).

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

Average sunshine days
New London, IA

Average sunshine days - New London, IA

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

Average cloud cover
New London, IA

Average cloud cover - New London, IA

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).

Average visibility
New London, IA

Average visibility - New London, IA

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).

New London, Iowa, USA

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