Climate and monthly weather forecast
Atlantic, IA

Weather in January

January, like December, is a freezing cold winter month in Atlantic, Iowa, with an average temperature varying between 28.4°F (-2°C) and 15.1°F (-9.4°C). January is the coldest month, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 15.1°F (-9.4°C). Weather in January »

Weather in February

February, the last month of the winter in Atlantic, is a wintry month, with an average temperature ranging between min 18.1°F (-7.7°C) and max 32°F (0°C). In February, the average high-temperature is essentially the same as in January - a wintry 32°F (0°C). Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in Atlantic, Iowa, with an average temperature ranging between max 47.8°F (8.8°C) and min 32.5°F (0.3°C). In Atlantic, the average high-temperature in March significantly increases from a cold 32°F (0°C) in February to a chilly 47.8°F (8.8°C). Weather in March »

Weather in April

April is a moderate spring month in Atlantic, Iowa, with an average temperature ranging between min 42.4°F (5.8°C) and max 59.5°F (15.3°C). In April, the average high-temperature rises from a chilly 47.8°F (8.8°C) in March to a moderate 59.5°F (15.3°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Atlantic, Iowa, with an average temperature ranging between min 52.9°F (11.6°C) and max 69.6°F (20.9°C). In May, the average high-temperature increases from a mild 59.5°F (15.3°C) in April to a pleasant 69.6°F (20.9°C). Weather in May »

Weather in June

The first month of the summer, June, is a moderately hot month in Atlantic, Iowa, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 79.9°F (26.6°C). In Atlantic, the average high-temperature in June increases from a pleasant 69.6°F (20.9°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Atlantic, Iowa, with an average temperature fluctuating between 82.6°F (28.1°C) and 65.1°F (18.4°C). The warmest month is July, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 65.1°F (18.4°C). In July, the average heat index is computed to be a hot 89.6°F (32°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Atlantic, Iowa, with an average temperature varying between 81.1°F (27.3°C) and 62.2°F (16.8°C). In Atlantic, Iowa, the average high-temperature in August is essentially the same as in July - a still warm 81.1°F (27.3°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Atlantic, Iowa, with temperature in the range of an average high of 75°F (23.9°C) and an average low of 55.9°F (13.3°C). In September, the average high-temperature marginally drops from a moderately hot 81.1°F (27.3°C) in August to a still warm 75°F (23.9°C). Weather in September »

Weather in October

October, like September, is another mild autumn month in Atlantic, Iowa, with an average temperature ranging between min 43.7°F (6.5°C) and max 60.4°F (15.8°C). In October, the average high-temperature plummets from a warm 75°F (23.9°C) in September to a mild 60.4°F (15.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Atlantic, is another chilly month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 47.1°F (8.4°C). In Atlantic, the average high-temperature in November decreases from a moderate 60.4°F (15.8°C) in October to a frosty 47.1°F (8.4°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Atlantic, Iowa, with an average temperature varying between 33.4°F (0.8°C) and 21°F (-6.1°C). In December, the average high-temperature drops from a chilly 47.1°F (8.4°C) in November to a wintry 33.4°F (0.8°C). Weather in December »
[Resources]

FAQ

What is the coldest month in Atlantic?

The coldest month in Atlantic, Iowa, is January, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 15.1°F (-9.4°C).

What is the most humid month in Atlantic?

January is the most humid month in Atlantic, with an average relative humidity of 82%.

What is the driest month in Atlantic?

January is the month with the least rainfall. Rain falls for 3.8 days and accumulates 0.59" (15mm) of precipitation.

How much does it rain in Atlantic?

In Atlantic, Iowa, during the entire year, the rain falls for 118.7 days and collects up to 20.79" (528mm) of precipitation.

When does it snow in Atlantic?

Months with snowfall in Atlantic, Iowa, are January through May, October through December.

How much does it snow in Atlantic?

In Atlantic, Iowa, during the entire year, snow falls for 32.3 days and aggregates up to 9.41" (239mm) of snow.

What is the month with the least sunshine in Atlantic?

January has the least sunshine of the year, with an average of 4.5h of sunshine.

When is the lowest UV index in Atlantic?

January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.

When does it snow the most in Atlantic?

The month with the most snowfall is February, when snow falls for 7.7 days and typically aggregates up to 2.36" (60mm) of snow.

When is Daylight Saving Time (DST) in Atlantic?

On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts in Atlantic, Iowa, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Atlantic?

The month with the most rainfall in Atlantic, Iowa, is June, when the rain falls for 16.4 days and typically aggregates up to 3.7" (94mm) of precipitation.

When it does not snow in Atlantic?

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

When are the longest days in Atlantic?

The month with the longest days is June, with an average of 15h and 7min of daylight.

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

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

What is the warmest month in Atlantic?

The warmest month in Atlantic is July, with an average high-temperature of 82.6°F (28.1°C) and an average low-temperature of 65.1°F (18.4°C).

What month has the most sunshine in Atlantic?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Atlantic.

What is the least humid month in Atlantic?

October is the least humid month, with an average relative humidity of 69%.

What is the month with the shortest days in Atlantic?

December has the shortest days of the year in Atlantic, with an average of 9h and 14min of daylight.

Average temperature
Atlantic, IA

Average temperature - Atlantic, IA

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (28.4°F).

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

[Resources]

Average pressure
Atlantic, IA

Average pressure - Atlantic, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

[Resources]

Average wind speed
Atlantic, IA

Average wind speed - Atlantic, IA

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).

[Resources]

Average rainfall
Atlantic, IA

Average rainfall - Atlantic, IA

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").

[Resources]

Average rainfall days
Atlantic, IA

Average rainfall days - Atlantic, IA

The month with the highest number of rainy days is June (16.4 days).
The month with the least rainy days is February (3.1 days).

[Resources]

Average snowfall
Atlantic, IA

Average snowfall - Atlantic, IA

The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days
Atlantic, IA

Average snowfall days - Atlantic, IA

The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight / Average sunshine
Atlantic, IA

Average daylight / Average sunshine - Atlantic, IA

The month with the longest days is June (Average daylight: 15h and 7min).
The month with the shortest days is December (Average daylight: 9h and 14min).

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

[Resources]

Average sunshine days
Atlantic, IA

Average sunshine days - Atlantic, IA

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).

[Resources]

Average UV index
Atlantic, IA

Average UV index - Atlantic, IA

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

[Resources]

Average visibility
Atlantic, IA

Average visibility - Atlantic, IA

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

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location