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: Showers and thunderstorms before 4pm, then a chance of showers and thunderstorms. Cloudy, with a high near 82. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.
Night: A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 65. West wind 0 to 5 mph. Chance of precipitation is 50%.
Day: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 85. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 61. North wind 0 to 5 mph. Chance of precipitation is 20%.
Day: Sunny, with a high near 84. North wind 0 to 5 mph.
Night: Mostly clear, with a low around 58.
Day: Sunny, with a high near 86.
Night: Mostly clear, with a low around 59.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 60.
Day: Mostly sunny, with a high near 89.
Night: Partly cloudy, with a low around 62.
Day: Mostly sunny, with a high near 89.
Night: Mostly clear, with a low around 63.
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