It didn't rain 40 days and 40 nights in September, but it rained 20 of September's 30 days and total rainfall measured 7.66 inches during the month. That compares with September's normal average of 2.95 inches, according to Guy Verhoff, Pandora weather observer.

Here's some other September weather figures from Verhoff:

The average September temperature in 2011: 63.2
Normal average September temperature: 63.7 degrees
Maximum September temperature: 94 on Sept. 3
Minimum September temperature: 40 on Sept. 16