Isobar reviews October weather 11.4.09

Posted in 2009 Nov.

By DAVID GREEN

Close to a record low; close to a record high.

It all happened recently during the month of October.

“Overall,” said Morenci climate observer George Isobar, “October finished on the cool side at 2.8° below normal. We had only two days in the 70s and seven mornings in the 20s.”

On Oct. 30, the temperature rose to 75° in Toledo, just two degrees shy of tying the record set in 1971. The 21° reading Oct. 18 in Morenci would have tied Toledo’s record had it come one day later.

“OK, so I’m stretching things a little here,” Isobar said. “It didn’t get up to 75° in Morenci—our high was 71—and it didn’t get that cold in Toledo, but you have to agree there was some pretty good variation during the month.”

There were six days when the temperature never made it out of the 40s and that led to the overall below-average number. The low for the month came Oct. 18 with a morning temperature of 21°.

Isobar observed the first frozen precipitation of the season Oct. 15 when snow grains fell in the morning. That was the end of it, however, and this area escaped any snowfall.

Rainfall came in nearly an inch an half above the 30-year average with 4.41 measured.

“The 24-hour total exceeded an inch in three occasions,” Isobar said. “You probably don’t remember it, but there was actually a little thunder on Oct. 6.”

The first light frost was observed on the first morning of the month.

November

Have we ever had a completely snowless November?

“Don’t even think we’re going to escape some snow this month,” Isobar said. “We’ve had a couple of snowless Novembers over the years, but they’re pretty rare.”

The average for November is about 2.5 inches, so it’s a rare year to have much on the ground.

The record snowfall since 1975 came in that first year of record-keeping with 6.6 inches. There are two other years that produced six inches of snow.

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