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Weekend rainfall tallies varied considerably by geography; drought-stricken areas got less

The weekend was far from a complete washout, but when it rained, it came down for real.

The bulk of the heaviest rain fell across the Buffalo Niagara region later Saturday into the wee hours of Sunday morning.

And, by the time 24-hour tallies poured into NOAA's Community Collaborative Rain, Hail and Snow Network (CoCoRaHS), it showed the Southern Tier once again picked up the highest amounts. And, rainfall totals decreased the further north you got.


CoCoRaHS network rainfall totals showed a high of more than 5 inches in central Allegany County to more than 2 inches in the Buffalo Southtowns. Areas of Niagara County picked up less than an inch. (NOAA)

The evidence of the weekend rain could be found later on Sunday when formerly bone-dry creeks and streams across the region were flowing once again.

How much did it help ease the drought?

We'll get an exact picture when the U.S. Drought Monitor presents its weekly update on Thursday, but it seems that the areas that did get the most rain were those where the drought had all but already lifted.


Portions of the western Southern Tier were already out of the worst of the drought before the weekend rains. (U.S. Drought Monitor)

A severe drought persisted throughout Erie, Niagara and Orleans counties with extreme drought conditions in Genesee and Wyoming counties as of last week.

So, the two inches of rain or so in places like Hamburg, East Aurora and West Seneca should put a bit of a dent in the precipitation deficit for the year.

Not so much further north near Lockport, where only a half-inch of rain fell, reports show.

Further south, near the Pennsylvania State Line, showers and thunderstorm activity occurred more often this summer, helping to even create surpluses.

In the town of Allegany, for instance, just over four inches of rain fell over the weekend bringing its yearly total to 33.43 inches, according to CoCoRaHS.

That's a foot more precipitation than what's been recorded in 2016 at the Buffalo Niagara International Airport.

The airport picked up 1.62 inches of rain on Saturday.

But, that still left the area with an annual precipitation deficit of 6.23 inches, data shows.


The average amount of precipitation to this point in the year at the Buffalo Niagara International Airport is 27.42 inches. So far, there's been 21.19 inches, including the weekend's heavy rains. (xmACIS2)

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