August was 4th warmest on record in Kennewick

August 2014 was the fourth warmest on record for the Tri-Cities, as measured in Kennewick, according to the National Weather Service.

Residents might not get much relief in September. Temperatures are expected to be normal or above in the Tri-Cities, the weather service said.

August capped a summer that was hotter than usual, according to data compiled by the Hanford Meteorology Station.

The summer months of June through August averaged 77.6 degrees, which was 3.4 degrees above normal.

August temperatures in the Tri-Cities averaged 3.5 degrees above normal. The hottest August on record was in 1898, when temperatures averaged 79.2, compared with the average of 78.5 last month.

September has started with highs a little below normal, but they should warm up to the normal of about 85 by the end of the week.

Normal September highs drop from 85 at the first of the month in the Tri-Cities to 74 at the end of the month. Normal lows fall from 57 to 47.

In August, highs averaged 91.9 in Kennewick, which was 2.6 degrees above normal. Low temperatures averaged 65.2, which was 4.4 degrees above normal.

The highest temperature recorded this summer at the Hanford Meteorology Station was 110 on July 16.

In a typical year, there are 13 days through August with temperatures of at least 100 at Hanford.

This year there were 22 days. Seven of those days were August, compared with a normal of five days of at least 100 for a typical August.

No daily temperature records were set in August at Hanford, where daily records have been kept since World War II.

Precipitation for this month is expected to be close to or less than the usual precipitation for September in the Tri-Cities of 0.3 inch, according to the weather service.

August was a relatively wet month for the Tri-Cities with 0.36 inch of precipitation recorded during four days, double the normal.

Precipitation for the year in the Tri-Cities has reached 3.16 inches, which is 1.54 inches below normal.

Precipitation since October, the start of the water year, has been low with just 3.8 inches in the Tri-Cities, which is 3.63 inches below normal.

The peak wind gust for the Tri-Cities in August, as recorded in Kennewick, was 63 mph on Aug. 12.

At Hanford, the peak gust was 61 mph on the same day. A small tornado was spotted on the north end of the Rattlesnake ridge the next day.

-- Annette Cary: 509-582-1533; acary@tricityherald.com; Twitter: @HanfordNews