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: Mostly clear. Low around 46, with temperatures rising to around 50 overnight. West wind around 5 mph.
Day: Sunny, with a high near 80. East wind 0 to 5 mph.
Night: A slight chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
Day: A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. East wind 0 to 10 mph. Chance of precipitation is 40%.
Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Day: A chance of showers and thunderstorms. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
Night: Showers and thunderstorms likely. Cloudy, with a low around 51. Chance of precipitation is 60%.
Day: Showers and thunderstorms likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 20%.
Day: Mostly sunny, with a high near 71.
Night: Partly cloudy, with a low around 48.
Day: Mostly sunny, with a high near 75.
Night: Partly cloudy, with a low around 49.
Day: Mostly sunny, with a high near 76.
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