Duncan climate

Typical historical weather for Duncan, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Duncan.

Annual average

17.8°C

across all months

Warmest month

35.4°C

Jul average high

Coolest month

-0.2°C

Jan average low

Annual rainfall

825mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

44.2°C

19 July 2022

Coldest day

-25.1°C

16 February 2021

Wettest day

82.7mm

29 April 2017

Windiest day

9.6m/s

19 March 2025