Duncan, IA Weather


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United States / Iowa / No Metro Area / Hancock County / Duncan / Zip Codes

The most pleasant months of the year for Duncan are June, August and July. In Duncan, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Duncan with an average high temperature of 82.2°, which ranks it as one of the coolest places in Iowa. December is the snowiest month in Duncan with 8.9 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - Duncan, IA

12 AM PST

Mostly Sunny

65°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonMostly Sunny66° / 45°SSE 23 mph
FridayShowers And Thunderstorms61° / 52°SE 23 to 28 mph
SaturdayChance Showers And Thunderstorms72° / 51°WSW 16 to 21 mph
SundayShowers And Thunderstorms68° / 43°SE 15 to 18 mph
MondayChance Showers And Thunderstorms58° / 41°W 17 mph
TuesdaySunny then Chance Showers And Thunderstorms76° / 49°SSW 8 to 17 mph
WednesdayChance Showers And Thunderstorms76° / 51°WNW 9 to 15 mph

Average Monthly High and Low (°F)
HighLow
January24°
February29° 11°
March42° 23°
April58° 35°
May70° 47°
June79° 58°
July82° 62°
August80° 59°
September73° 50°
October60° 37°
November43° 24°
December27° 11°
Hot, Freezing, Rainy, Snowy Days: Duncan
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January03155
February02754
March02673
April011101
May01110
June20110
July3090
August2080
September1180
October01070
November02363
December03066

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

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