Duncan Weather in July

The climate in Duncan during July can be summarized as very hot and reasonably dry.

July is in the summer in Duncan and is typically the warmest month of the year. Daytime maximum temperatures average around a warm 35°C (95°F), whilst at night 22°C (71°F) is normal.

On average July is the 6th driest month of the year in Duncan with around 55mm 2.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 12.1 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Duncan in July 2025.