Delta climate

Typical historical weather for Delta, 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 Delta.

Annual average

10.3°C

across all months

Warmest month

33.1°C

Jul average high

Coolest month

-10.4°C

Jan average low

Annual rainfall

329mm

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

38.9°C

9 July 2021

Coldest day

-25°C

7 January 2017

Wettest day

24.3mm

11 October 2025

Windiest day

5.1m/s

8 May 2022