HAPPY VALLEY, OREGON WEATHER: SEPTEMBER 2023
TEMPERATURES September 2023 averaged around Normal in the Portland area; the three official Portland weather stations had Mean Temperature Departures ranging from -0.9° to +1.0°. See detailed data for Portland’s official stations at the end of the post. Here in Happy Valley, the September Average Maximum/Minimum/Mean Temperatures were 71.3°/53.8°/62.6°. The month began relatively warm the first 2 days, with the Maximum Temperature reaching the mid-80s on the 2nd but quickly cooling to the 60s to mid-70s through the 8th. The…