September in the Lake Almanor Basin was truly a transition month as we moved from summer into autumn.
The month began warm and dry and ended chilly and wet, with even a trace of snowfall on the evening of the 29th.
The PG&E monitoring site at Prattville registered 1.74 inches of rain during September, well above our average for the month. That brought our July-June season total to date to 2.31 inches.
September low temperatures averaged close to the long-term norm, but our high temperature average was nearly 5 degrees cooler than the long-term figure.
Late in the month we experienced four mornings with lows below freezing, with the lowest being 24 degrees at the Chester airport on the 29th. Our peak temperature was 88 degrees on the 3rd.
October typically continues the gradual cooling trend with additional precipitation. It’s also one of our more colorful months as autumn foliage glows.