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: A chance of showers and thunderstorms before 10am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 84. Northwest wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Night: A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 66. Northwest wind 0 to 5 mph. Chance of precipitation is 30%.
Day: Mostly sunny, with a high near 83. Northwest wind 5 to 10 mph.
Night: Mostly clear, with a low around 63. North wind 0 to 5 mph.
Day: Sunny, with a high near 85. North wind 0 to 5 mph.
Night: Mostly clear, with a low around 61.
Day: Sunny, with a high near 86.
Night: Mostly clear, with a low around 61.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 61.
Day: Mostly sunny, with a high near 88.
Night: Partly cloudy, with a low around 63.
Day: Sunny, with a high near 88.
Night: Mostly clear, with a low around 64.
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