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, with a low around 56. Northeast wind around 0 mph.
Day: Mostly sunny, with a high near 73. North northeast wind 0 to 5 mph.
Night: Patchy fog after 2am. Mostly clear, with a low around 56. East wind 0 to 5 mph.
Day: Patchy fog before 8am. Sunny. High near 79, with temperatures falling to around 76 in the afternoon. West southwest wind 0 to 5 mph.
Night: Clear, with a low around 57. West wind 0 to 5 mph.
Day: Sunny. High near 81, with temperatures falling to around 77 in the afternoon. Southwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 61. South southwest wind around 5 mph.
Day: Sunny. High near 76, with temperatures falling to around 73 in the afternoon. Northwest wind 5 to 10 mph.
Night: Clear, with a low around 53. West southwest wind 0 to 5 mph.
Day: Sunny, with a high near 78. South southeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 59. South southeast wind around 5 mph.
Day: Mostly sunny, with a high near 80. South southeast wind 5 to 10 mph.
Night: Mostly cloudy, with a low around 63. South southeast wind around 5 mph.
Day: Mostly sunny, with a high near 80. South southeast wind 5 to 10 mph.
Tue's High Temperature
108 at 16 Miles Southwest Of Tecopa, CA and Death Valley, CA
Tue's Low Temperature
15 at 14 Miles West-southwest Of Mackay, ID