Los Alamos Weather in October

The climate in Los Alamos during October can be summarized as mild and reasonably dry.

October is in the fall / autumn in Los Alamos and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 19°C (66°F), whilst at night 2°C (36°F) is normal.

On average October is the 4th wettest month of the year in Los Alamos with around 34mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.6 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 Los Alamos in October 2025.