Alamosa, CO Climate in September

Temperature for September

In Alamosa, CO during September the average high temperature is 74.2°F. The hottest day on record was September 21, 1980 when the temperature hit 88.0°F.

Alamosa, CO daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 36.8°F, with the lowest temperature of 15.1°F being recorded on September 30, 1985. Overnight temperatures drop below freezing between 1 and 18 times in September.

Precipitation for September

In September the average monthly rainfall in Alamosa, CO is 1.31 inches with rain usually falling on between 7 and 8 days. 1987 was the driest September with only 0.07 inches of rain falling, and 1992 was the wettest September with 10.80 inches of rain. The wettest single day in September was 10 September 2003 when 1.17 inches of rain fell.

In September it usually snows on between 0 and 1 days. There are thunderstorms on between 4 and 5 days in September.