September 2015 Was Real Warm and Kind of Dry

The sun sets on another pleasant September day in Oswego.

The sun sets on another pleasant September day in Oswego.

OSWEGO, NY – It was another warm and relatively dry September, according to Bill Gregway, local observer for the National Weather Service.

The sun sets on another pleasant September day in Oswego.
The sun sets on another pleasant September day in Oswego.

The average temperature last month was 67.0 degrees. That is 5.0 degrees higher than average, Gregway said.

“It isn’t a record or a biggie really. It was just a nice warm month,” he said.

There were no records set and there were no 90s, he added.

The highest temperature was 89 degrees on the 7th. And, the lowest was 46 degrees on the 27th.

The total precipitation for September was 4.56 inches.

That is 0.39-inch higher than normal.

“It would have been much, much drier had it not been for some soaking rains near the end of the month,” Gregway pointed out.

However, precipitation since the first of the year stands at 28.62. That is 2.27 inches below normal.

“So, for the year, we’re still running a deficit,” Gregway said.

The greatest precipitation in a 24-hour period was 1.52 inches on the 30th.

“We also received 1.30 in a stretch from the 12th to the 14th,” Gregway added. “Subtract those 2 periods and the month’s total is well under 2 inches.”

September had 8 days of measurable precipitation; with 2 stretches of 3 days in a row.

There was 1 day with just a trace.

And, no precipitation fell on 21 days with runs of 8 days and 7 days in a row.

“That’s sort of unusual for us to have such long stretches of dry weather in the fall,” Gregway observed.

Snowfall is already running a deficit, Gregway quipped, noting there was none last month and the average for September is a trace.

The area received 57 percent of the possible amount of sunshine. That is 1 percentage above normal.

The number of cloudy days, the number of partly cloudy days and clear days were all 10, making all 3 average.

“To have them all the same at once is rather unusual,” Gregway said. “I can’t remember the last time that ever happened.”

September had 2 thunderstorm days, which is 1 below average.

There was 2 foggy days also. That is 1 above average.

The highest barometric pressure was 30.46 on the 26th. The lowest was 29.64 on the 12th.

The strongest winds were west-northwesterly with gusts greater than 40 mph on the 9th.

“We had some damaging winds during a brief thunderstorm that knocked down some trees,” Gregway said. “Except for that, we really didn’t have an awful lot of wind. There was a couple times around 25 mph, but really not a windy month.”

September 2014 was pretty much a mirror image of last month, Gregway said.

The warmest September on record is 1881 (71.0 degrees). September 1896 is the coolest (50.6 degrees).

The most precipitation, 8.64 inches, was recorded in 2010. The least, 0.54-inch, came in 1844.

The snowiest Septembers are 1899 and 1985, both received 0.1-inch of snow.

September’s all time high temperature, 96 degrees, came on the 4th in 1953. The lowest, 30 degrees, was recorded twice – on the 24th in 1963 and the 30th in 1991.