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
Day: Patchy fog before 10am, then isolated rain showers. Mostly cloudy, with a high near 70. East wind 0 to 5 mph. Chance of precipitation is 20%.
Night: Rain showers likely. Mostly cloudy, with a low around 49. East wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Day: Rain showers before 11am, then showers and thunderstorms. Cloudy, with a high near 65. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Night: Showers and thunderstorms. Cloudy, with a low around 53. Southwest wind around 5 mph. Chance of precipitation is 80%.
Day: A chance of rain showers. Partly sunny, with a high near 71. West wind 5 to 10 mph. Chance of precipitation is 40%.
Night: A slight chance of rain showers before 9pm. Partly cloudy, with a low around 47.
Day: Mostly sunny, with a high near 73.
Night: A slight chance of rain showers after 11pm. Mostly cloudy, with a low around 49.
Day: A slight chance of rain showers. Mostly sunny, with a high near 74.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 45.
Day: Sunny, with a high near 74.
Night: Partly cloudy, with a low around 42.
Day: Mostly sunny, with a high near 70.
Night: Mostly clear, with a low around 37.
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