1926 - The temperature at Yellowstone Park dipped to nine degrees below zero. It was the coldest reading of record in the U.S. during September. Severe freezes were widespread over the northwestern U.S. causing great crop destruction. In Washington State, Spokane County experienced their earliest snow of record. Harney Branch Experiment Station in Oregon reported a temperature of 2 degrees above zero to establish a state record for the month of September.
More on this and other weather history
Night: A slight chance of rain showers after 4am. Partly cloudy, with a low around 57. North northwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 20%.
Day: A chance of rain showers before noon. Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. North northwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Night: Mostly clear, with a low around 51. West northwest wind 0 to 5 mph.
Day: Sunny, with a high near 78. West wind 0 to 5 mph.
Night: Mostly clear, with a low around 54. South wind 0 to 5 mph.
Day: Sunny, with a high near 80.
Night: Clear, with a low around 56.
Day: Sunny, with a high near 82.
Night: Mostly clear, with a low around 56.
Day: Sunny, with a high near 81.
Night: Mostly clear, with a low around 56.
Day: Sunny, with a high near 79.
Night: Partly cloudy, with a low around 56.
Day: Mostly sunny, with a high near 77.
Wed's High Temperature
110 at 4 Miles South Of Tolleson, AZ
Wed's Low Temperature
19 at 14 Miles West-southwest Of Mackay, ID