2012 the second-driest summer on record in Eugene

EUGENE, Ore. - Barely any rain fell in Eugene in July, August or September, the National Weather Service said, contributing to extreme fire danger across the region.

All of Western Oregon is under a red flag warning through Thursday evening.

That means forecast winds and humidity leave the region primed for the rapid spread of fire through grass, trees and other fuels.

The fire danger remains high this late in the year due to near-record and record dry conditions.

The period ranks as the second driest July to September on record at the Eugene Airport with just .21 inches of rain collecting in the gauge.

The record driest July to September for Eugene was 1942, with just .18 inches of rain.

This summer's rainfall is well short of normal: from 1896 to 2012, the average for the period is 2.45 inches of rain.

Rain gauges at the Portland Airport and in Salem and Hillsboro all posted record-low rainfall for July through September.

Just a quarter of an inch fell at PDX, compared to .51 inches in 1952. The long-term average is 2.45 inches.

Hillsboro got .15 inches of rain, down from .36 in 1952 and the average 2.24 inches.

Salem posted the lowest new record: just .11 inches, down from .23 in 1952 and the long-term average of 2.17 inches.