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 78. East wind 5 to 14 mph.
Day: A chance of showers and thunderstorms after 11am. Mostly sunny. High near 99, with temperatures falling to around 93 in the afternoon. South wind 10 to 15 mph. Chance of precipitation is 50%.
Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 71. South southeast wind 10 to 18 mph. Chance of precipitation is 60%.
Day: Showers and thunderstorms. Mostly cloudy, with a high near 86. South wind 10 to 18 mph. Chance of precipitation is 80%.
Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Southeast wind around 10 mph. Chance of precipitation is 50%.
Day: A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 40%.
Day: A slight chance of showers and thunderstorms before 5pm. Sunny, with a high near 82. Chance of precipitation is 20%.
Night: Mostly clear, with a low around 64.
Day: Sunny, with a high near 86.
Night: Mostly clear, with a low around 66.
Day: Sunny, with a high near 88.
Night: Mostly clear, with a low around 66.
Day: Sunny, with a high near 89.
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