Already this year, Martha’s Vineyard has seen 50 inches of rainfall. That’s far ahead of the annual average of 45.82 inches, and there is still a month and a half to go.

October was wet. Total rainfall for the month was 7.74 inches, more than twice the average of 3.39 inches, according to the National Weather Service cooperative station, kept in Edgartown.

September also was wet. The total was 8.47 inches of rainfall, more than twice the average of 3.56 inches. A lot of that rain fell with the offshore passage of Hurricane Earl on Sept. 3 and 4. Earl was the wettest storm the Island has seen in decades. In the span of just 24 hours, the Island soaked up 6.21 inches of rain.

Last year was wet too. The annual total was 53.68 inches.

Two years of such wet weather is a wet trend, but not a record.

The wettest year on record for Edgartown was in 1972, when the precipitation total for the year was 65.43 inches, according to Jessica Rennells, a climatologist for the Northeast Regional Climate Center in Ithaca, which keeps track of all the rainfall for the region.

The Edgartown weather station has been in operation since 1945.

Bill Wilcox, water resource planner for the Martha’s Vineyard Commission, monitors a dozen wells from Chilmark to Edgartown. Through his measuring, he has a view of the aquifer, a lens of water that resides below ground and provides all the water on tap.

Not only is the aquifer in good shape, but Mr. Wilcox said he expects it to rise this season, ahead of schedule.

Usually, during the summer rain never makes it to the aquifer, Mr. Wilcox said. It tends to evaporate or be sucked up by plants throughout the growing season. Once the leaves fall from the trees, the rain makes it into the ground and replenishes the aquifer. Mr. Wilcox said he is seeing the recharging happening earlier in the fall than usual.

According to his records, the Island’s water table was highest in the spring of 1997 and 1998.