Weather Almanac: Williamstown, PA 17098

🗓️ Historical norms for September

September avg. precipitation
🌧️ 4.61"
September days below freezing
📉 ≈0.0 days
Average September lows ≈52.1°F
USDA Zone
6b
Annual extreme lows -5°F to 0°F
Last Spring Frost (36°F)
🌷 May 18
First Fall Frost (36°F)
🍂 Sep 29

Temperature climatic data from weather station: BEAR GAP (USC00360457)

Precipitation climatic data from weather station: BEAR GAP (USC00360457)

Agricultural climatic data from weather station: DEHART DAM (USC00362071)