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 showers and thunderstorms before 10pm. Partly cloudy, with a low around 66. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
Day: Sunny, with a high near 87. North wind 5 to 10 mph.
Night: Clear. Low around 61, with temperatures rising to around 63 overnight. North wind 0 to 5 mph.
Day: Sunny. High near 88, with temperatures falling to around 86 in the afternoon. North northeast wind 0 to 5 mph.
Night: Mostly clear. Low around 60, with temperatures rising to around 62 overnight. East wind 0 to 5 mph.
Day: Sunny. High near 89, with temperatures falling to around 87 in the afternoon. Southeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 61. East southeast wind 0 to 5 mph.
Day: Sunny, with a high near 89. Southeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 63. East southeast wind 0 to 5 mph.
Day: Partly sunny, with a high near 87.
Night: Partly cloudy, with a low around 62.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 62.
Day: Sunny, with a high near 90.
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