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: Partly cloudy. Low around 65, with temperatures rising to around 67 overnight. Northwest wind around 5 mph.
Day: Sunny, with a high near 85. North northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Night: Clear. Low around 62, with temperatures rising to around 64 overnight. North wind 0 to 5 mph.
Day: Sunny. High near 86, with temperatures falling to around 84 in the afternoon. North northeast wind 0 to 5 mph.
Night: Mostly clear, with a low around 60. East southeast wind 0 to 5 mph.
Day: Sunny. High near 88, with temperatures falling to around 85 in the afternoon. Southeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 62. East southeast wind 0 to 5 mph.
Day: Mostly sunny, with a high near 87. Southeast wind 0 to 5 mph.
Night: Partly cloudy, with a low around 64. East wind 0 to 5 mph.
Day: Partly sunny, with a high near 85.
Night: Partly cloudy, with a low around 63.
Day: Sunny, with a high near 86.
Night: Mostly clear, with a low around 63.
Day: Sunny, with a high near 88.
Wed's High Temperature
110 at 4 Miles South Of Tolleson, AZ
Wed's Low Temperature
19 at 14 Miles West-southwest Of Mackay, ID