🌷 Your Ultimate Garden Calendar!

Weather Almanac: Gresham, OR 97030

🗓️ Historical norms for September

August October
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.
September avg. precipitation
🌧️ 1.85"
September days below freezing
📉 ≈0.0 days
Average September lows 47°F – 52°F
USDA Zone
9a
Annual extreme lows 20°F to 25°F
Last Spring Frost (36°F)
🌷 Apr 25
View full details
First Fall Frost (36°F)
🍂 Oct 24
View full details

Book Recommendations (ads!)

📚 Pacific Northwest Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 Gardening in the Pacific Northwest: The Complete Homeowner's Guide

📚 Growing Vegetables West of the Cascades, 35th Anniversary Edition: The Complete Guide to Organic Gardening

F: Forecast
H: Normal High Temp
L: Normal Low Temp
Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature climatic data from weather station: PORTLAND TROUTDALE AP (USW00024242)

Precipitation climatic data from weather station: PORTLAND TROUTDALE AP (USW00024242)

Agricultural climatic data from weather station: PORTLAND WFO (USC00356750)