September was 10th wettest on record in Boise

Statesman staffOctober 1, 2013 

September was the 10th-wettest Boise on record — since 1864 — according to the National Weather Service in Boise.

The city received 1.75 inches of rain. That's about three times the average for the month, according to weather service meteorologist Joel Tannenholz, who said the normal from 1981 to 2010 was 0.58 inches.

Not counting days with trace amounts of rain, Tannenholz said measurable rain was recorded on 11 days last month, and much of the 1.75-inch total was accumulated during three days:

• 0.49 inches on Sept. 3

• 0.23 inches on Sept. 24

• 0.3 inches on Sept. 25

The wettest September on record in Boise was 1986, when 2.93 inches fell.

So, what's October looking like?

There is a chance of rain Wednesday night in Boise, according to Monday's weather service forecast, and a slight chance Thursday. After that, plenty of sun was expected through the weekend.

As for the rest of the month, the National Weather Service Climate Prediction Center said to expect near-normal temperatures and precipitation close to average for the month: three-quarters of an inch.

10 wettest Boise Septembers

1. 2.93 inches (1986)

2. 2.54 (1959)

3. 2.32 (1918)

4. 2.26 (1893)

5 (tie). 2.11 (1976 and 1884)

7. 1.96 (1998)

8. 1.87 (1940)

9. 1.81 (1986)

10. 1.75 (2013)

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