Weather Almanac: Harrisville, NH 03450

🗓️ Historical norms for September

September avg. precipitation
🌧️ 3.77"
September days below freezing
📉 ≈0.1 days
Average September lows ≈49.7°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 29
First Fall Frost (36°F)
🍂 Sep 14

Temperature climatic data from weather station: EDWARD MACDOWELL LAKE (USC00275013)

Precipitation climatic data from weather station: OTTER BROOK LAKE (USC00276550)

Agricultural climatic data from weather station: JAFFREY MUNI AP (USW00054770)