September in Connecticut typically marks a transition from summer’s heat to autumn’s cooler temperatures. Expect average highs ranging from the low 70s Fahrenheit (low 20s Celsius) at the beginning of the month to the mid-60s Fahrenheit (high teens Celsius) by the end. Overnight lows generally fall into the 50s Fahrenheit (low to mid-teens Celsius). This period experiences decreasing humidity and offers a comfortable balance between warm days and crisp nights. Rainfall amounts remain relatively consistent with other months, averaging around 4 inches.
Understanding these typical climatic conditions is crucial for anyone planning activities in the state during this time. The pleasant weather makes September an ideal month for outdoor pursuits like hiking, apple picking, and exploring the state’s scenic foliage as it begins its transformation. Historically, this period has signified the end of the growing season for many crops, leading to harvest festivals and agricultural celebrations across the region. Furthermore, the shift in weather patterns influences the behavior of local wildlife and marks the beginning of the fall migration for certain bird species.
