Grenell Real EstateGrenell is located in New York. Grenell, New York has a population of 2,427. The median household income in Grenell, New York is $70,758. The median household income for the surrounding county is $58,271 compared to the national median of $69,021. The median age of people living in Grenell is 48.1 years. Grenell WeatherThe average high temperature in July is 79.9 degrees, with an average low temperature in January of 9.3 degrees. The average rainfall is approximately 38.8 inches per year, with 100.2 inches of snow per year. Grenell MapReal estate near GrenellNearby CitiesNearby Cities Homes for Sale |