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: Showers and thunderstorms. Cloudy, with a high near 86. West wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Night: Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northwest wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Day: A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 85. Northwest wind 5 to 10 mph. Chance of precipitation is 20%.
Night: Mostly clear, with a low around 62. Northwest wind 0 to 10 mph.
Day: Sunny, with a high near 85. North wind 0 to 5 mph.
Night: Mostly clear, with a low around 59.
Day: Sunny, with a high near 87.
Night: Mostly clear, with a low around 60.
Day: Mostly sunny, with a high near 87.
Night: Partly cloudy, with a low around 61.
Day: Mostly sunny, with a high near 86.
Night: Mostly cloudy, with a low around 63.
Day: Mostly sunny, with a high near 87.
Night: Mostly clear, with a low around 62.
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