Warm September, Wet October?
As I mentioned in the previous blog, there was the potential for September 2025 to set a record for the warmest September ever recorded in Spokane. Now that we’ve turned the calendar, we can definitely say that September 2025 was the warmest on record, going back to 1881. Here’s the top 10 list. A few things to note. September 2024 is third on the list of warmest Septembers. And 2022 is in 5th place. Is this a trend, or is something going on at the Spokane Airport? If you’ve read other blog entries you know I’ve pointed out that the temperature sensor at Spokane Airport is surrounded by a lot of concrete runways and tarmacs, which could contribute to a warm bias. But in this case, that’s not the sole cause. If we look at other stations in the Northwest, the story is the same. Below is a map showing the ranking of 2025 temperatures in September. Missoula and Yakima also had their warmest September on record, with other locations coming close to setting records, including Lewi...