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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Atlantic, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 15.1°F (-9.4°C) and 28.4°F (-2°C). Atlantic's January weather, with an average high temperature of 28.4°F (-2°C) and an average low temperature of 15.1°F (-9.4°C), tends to be the coldest of the year. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Atlantic, Iowa, with an average temperature varying between 18.1°F (-7.7°C) and 32°F (0°C). The shift from January to February is characterized by an average high-temperature of a wintry 32°F (0°C), not significantly different from the 28.4°F (-2°C) of January. Weather in February »
Weather in March
March, the first month of the spring in Atlantic, is a frosty month, with an average temperature fluctuating between 32.5°F (0.3°C) and 47.8°F (8.8°C). The start of March brings a distinct shift in the average high-temperature, escalating from February's cold 32°F (0°C) to a frosty 47.8°F (8.8°C). Weather in March »
Weather in April
April is a mild 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). April's onset brings a temperature rise, moving from a frosty 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 a pleasant month in Atlantic, Iowa, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.6°F (20.9°C). As May begins, there is an increase in the average high-temperature, moving 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
June, the first month of the summer in Atlantic, is a warm month, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C). An upsurge in temperatures occurs as May gives way to June, with average highs shifting from a pleasant 69.6°F (20.9°C) to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July, like June, in Atlantic, Iowa, is a moderately hot summer month, with an average temperature ranging between max 82.6°F (28.1°C) and min 65.1°F (18.4°C). With average temperatures fluctuating between a high of 82.6°F (28.1°C) and a low of 65.1°F (18.4°C), July stands out as the warmest month. The heat index value during July is estimated at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Atlantic, is another warm month, with an average temperature fluctuating between 62.2°F (16.8°C) and 81.1°F (27.3°C). The advent of August denotes an average high-temperature of a still moderately hot 81.1°F (27.3°C), subtly different from July's 82.6°F (28.1°C). Weather in August »
Weather in September
September, the first month of the autumn in Atlantic, is still a warm month, with an average temperature varying between 55.9°F (13.3°C) and 75°F (23.9°C). With the onset of September, the average high-temperature subtly recedes from August's moderately hot 81.1°F (27.3°C) to a still warm 75°F (23.9°C). Weather in September »
Weather in October
October, the same as September, in Atlantic, Iowa, is another mild autumn month, with an average temperature fluctuating between 43.7°F (6.5°C) and 60.4°F (15.8°C). The onset of October brings a clear temperature shift, with the average high-temperature decreasing from a moderately hot 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 also a frosty month, with an average temperature fluctuating between 47.1°F (8.4°C) and 32.4°F (0.2°C). The shift to November brings a decrease in the average high-temperature, falling from a refreshing 60.4°F (15.8°C) in October to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Atlantic, is still a cold month, with an average temperature varying between 21°F (-6.1°C) and 33.4°F (0.8°C). December suggests a modest reduction in the average high-temperature, shifting from a chilly 47.1°F (8.4°C) in November to a cold 33.4°F (0.8°C). Weather in December »
Updated: Jun 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
Atlantic witnesses the coldest weather in January, with temperatures averaging a high of 28.4°F (-2°C) and a low of 15.1°F (-9.4°C).
What is the most humid month?
January is the most humid month, with an average relative humidity of 82%.
What is the driest month?
The month with the least rainfall is January, when the rain falls for 3.8 days and typically collects 0.59" (15mm) of precipitation.
How many days does it rain?
Throughout the year, there are 118.7 rainfall days, and 20.79" (528mm) of precipitation is accumulated.
When does it snow in Atlantic?
January through May, October through December are months with snowfall.
How much does it snow?
In Atlantic, 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?
With an average of 4.5h of sunshine, January has the least sunshine of the year.
What are the months with the lowest UV index?
The months with the lowest UV index in Atlantic are January, February, October through December, with an average maximum UV index of 2.
What is the snowiest month?
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)?
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 wettest month?
June is the month with the most rainfall. Rain falls for 16.4 days and accumulates 3.7" (94mm) of precipitation.
When it does not snow?
June through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
When is 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 warmest month?
Atlantic's warmest weather arrives in July, when temperatures average a high of 82.6°F (28.1°C) and a low of 65.1°F (18.4°C).
What month has the most sunshine?
July has the most sunshine of the year, with an average of 10.4h of sunshine.
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?
December has the shortest days of the year, with an average of 9h and 12min of daylight.
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).
Average pressure
Atlantic, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Atlantic, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.1mph - Average wind speed in June:
8.4mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.4mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
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).
Average humidity
Atlantic, IA
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Atlantic, IA
- Average rainfall in January:
0.59" - Average rainfall in February:
0.67" - Average rainfall in March:
1.14" - Average rainfall in April:
1.73" - Average rainfall in May:
3.15" - Average rainfall in June:
3.7"
- Average rainfall in July:
2.05" - Average rainfall in August:
2.48" - Average rainfall in September:
2.13" - Average rainfall in October:
1.42" - Average rainfall in November:
0.79" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
Atlantic, IA
- Average rainfall days in January:
3.8 days - Average rainfall days in February:
3.1 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
14 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
8.6 days - Average rainfall days in November:
5.8 days - Average rainfall days in December:
4.4 days
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).
Average snowfall
Atlantic, IA
- Average snowfall in January:
2.09" - Average snowfall in February:
2.36" - Average snowfall in March:
1.54" - Average snowfall in April:
0.59" - Average snowfall in May:
0.24" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.36").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Atlantic, IA
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7.7 days - Average snowfall days in March:
4.9 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
6.4 days
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).
Average daylight / Average sunshine
Atlantic, IA
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 5min - Average sunshine in December:
4h and 5min
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).
Average sunshine days
Atlantic, IA
- Average sunshine days in January:
18.9 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
16.9 days - Average sunshine days in April:
14.3 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
20.7 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
21.2 days
The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is June (10.8 days).
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).
Average cloud cover
Atlantic, IA
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 28).
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).
Atlantic, Iowa, USA
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