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Weather in Atlantic, IA · National Weather Service + NOAA

Atlantic has a short growing season

Atlantic has cold winters and warm summers. A typical July afternoon reaches 85°, a January night drops to 12°, and about 27 inches of snow falls in a normal winter. In November, a normal day reaches 48° and a normal night drops to 27°.

Winter 34°/15°Spring 61°/38°Summer 83°/61°Fall 63°/40°
Right now
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Sunrise 7:53 am · sunset 6:14 pm

Getting the latest forecast from the National Weather Service…

What stands out about Atlantic’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
A short growing season153 frost-free days, from Apr 30 to Oct 2.Barely warmer than a century agoThe last 30 years averaged 0.5° warmer than the 1900s, a smaller shift than 97% of U.S. towns.
A normal year

Where today sits in Atlantic’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
34° / 15°
9 days with an inch or more of snow
Spring
61° / 38°
Last frost around Apr 30
Summer
83° / 61°
22 days reach 90° in a normal year
Fall now
63° / 40°
First frost around Oct 2
Pastthe usual first frost (Oct 2). Last frost next spring: Apr 30
Best months to be outside
MayJunAugSep
Highs of 62–84° and lows of 40° or more
How much snow does Atlantic get?About 27 inches a winter.When is it wettest?June, with 5.3 inches.Is it warmer than it used to be?+0.5° vs. the 20th century.

Weather talk

Road reports, first frosts and storm memories from neighbors in Atlantic.

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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Atlantic itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Atlantic 1 Ne, IA (2 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.