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: Mostly sunny, with a high near 94. Heat index values as high as 97. Southwest wind 0 to 5 mph.
Night: Mostly clear, with a low around 71. South wind around 5 mph.
Day: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Night: A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Southwest wind 0 to 5 mph. Chance of precipitation is 50%.
Day: A chance of rain showers before 11am, then showers and thunderstorms likely. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Night: Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Day: A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Day: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 20%.
Day: A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Day: A slight chance of rain showers before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 85.
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