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
Day: Sunny, with a high near 85. North northwest wind around 7 mph.
Night: Mostly clear, with a low around 58. Southwest wind 2 to 7 mph.
Day: Sunny. High near 73, with temperatures falling to around 71 in the afternoon. Northeast wind 3 to 10 mph.
Night: Mostly clear, with a low around 50. North northeast wind around 10 mph.
Day: Sunny, with a high near 70. North northeast wind around 9 mph.
Night: Clear, with a low around 55.
Day: Sunny, with a high near 75.
Night: Mostly clear, with a low around 56.
Day: A chance of rain after 11am. Mostly sunny, with a high near 69.
Night: A chance of rain. Mostly cloudy, with a low around 52.
Day: A chance of rain. Mostly cloudy, with a high near 59.
Night: A chance of rain. Mostly cloudy, with a low around 50.
Day: A chance of rain. Partly sunny, with a high near 57.
Night: A chance of rain. Mostly cloudy, with a low around 51.
Tue's High Temperature
108 at 16 Miles Southwest Of Tecopa, CA and Death Valley, CA
Wed's Low Temperature
19 at 14 Miles West-southwest Of Mackay, ID