Hot
Average highs reach 35°C, so days can feel very hot.
Weather Guide
Duncan, Oklahoma, United States Average Monthly Weather
Weather score60Good annual avg
Best months: June, September, July
Across the year, average daytime temperatures are around 23°C, sunshine averages 8.3h per day, and rainfall totals about 743mm.
Annual weather
Annual averages
Temp
23°C
Rain
743mm
Annual total
Sun
8.3h
Weather score
60
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 55mm, which is relatively low for holiday planning.
Bright
Sunshine averages 11h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Duncan, Oklahoma, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
July35°C average high
July is one of Duncan's hottest months, so shade and slower afternoons matter.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
July55mm average rain
July sits on the drier side of Duncan's year, which helps with sightseeing and transfers.
Driest monthsJanuary to March, July to August, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
July11 hours average sun
July is one of Duncan's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
July79 weather score
July is one of Duncan's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.
