Hurricane Sandy's deluge

An abandoned car sits in deep water on Cromwell Bridge Road in the aftermath of hurricane Sandy. (Barbara Haddock Taylor, Baltimore Sun / October 30, 2012)

October was the 21st consecutive month in Baltimore with a warmer-than-normal average temperature, and it was the second-wettest October on record here thanks to Hurricane Sandy, according to local weather data.

The average temperature at BWI Airport was 58.3 degrees, about 2 degrees above average. It was the warmest October since 2007 and second-warmest since 1995.

Given that the average temperature can be a bit misleading when considering an overall month's warmth or cold, consider that there were 11 days with below-normal temperatures. The other 20 were all above-average, eight of them by 10 degrees or more.

There were 8.92 inches of rain measured at BWI, second only to October 2005, when remnants of Tropical Storm Tammy and another tropical depression merged with an oncoming cold front to indundate the Northeast. Read more about that historic month here.

Without Hurricane Sandy, last month would have come about an inch short of the normal 3.33 inches of rain. Across three days as the storm approached and passed through, 6.67 inches of rain fell, shattering daily rain records for Oct. 29 and Oct. 30.

Each month but August and October this year has posted below-average precipitation at BWI. The running total for the year is about 33 inches, 2 inches short of the norm for this time of year.

Have a weather question? E-mail me at sdance@baltsun.com or tweet to @MdWeather.