September weather forecast
Whitehall, MT

September in Whitehall marks the beginning of the pleasant fall season. A remarkable change from August is the return of snowfall — albeit small quantities — at around 0.7" (18mm). Transcending from the summer heat, the temperatures take a dip fostering a cool and pleasant climate. As the cascading autumn leaves paint the town in hues of orange, the days progressively get shorter. September can be identified by a gentle touch on the cooler side.

Temperature

September's arrival comes with a decrease in the average high-temperature, moving from a moderately hot 83.1°F (28.4°C) in August to a pleasant 71.4°F (21.9°C). Despite a significant deviation from daily highs, September sees an average nighttime temperature of 39.6°F (4.2°C).

Rainfall

During September, Whitehall regularly aggregates up to 1.1" (28mm) of precipitation. During the entire year, Whitehall aggregates up to 9.41" (239mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Whitehall. September is the first month it typically snows. Throughout September, Whitehall receives 0.71" (18mm) of snow. In Whitehall, during the entire year, snow aggregates up to 26.61" (676mm).

Daylight

In September, the average length of the day is 12h and 31min.
On the first day of September, sunrise is at 6:50 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:09 pm MDT.