Regardless of when you’re reading this, you can rest assured that the weather in Jamestown, NY will be comfortable and pleasant. The climate of Jamestown is relatively temperate, with four seasons and high temperatures. The climate is warm and humid in the summer and low to mid-fifties in the winter. During the spring and fall, temperatures remain cooler and the weather is partly cloudy, with high humidity.
For example, during May, the average wind speed in Jamestown decreases from 5.8 to 4.8 miles per hour. The average wind speed on January 17th, the windiest day of year, is 9.4 miles an hour. August 4 is the calmest day with a wind speed of 4.2 miles per hour. This data can be used to predict the weather conditions in Jamestown and plan your outdoor activities.