1982 - A snowstorm over Wyoming produced 16.9 inches at Lander to esablish a 24 hour record for September for that location.
More on this and other weather history
Night: Mostly cloudy. Low around 66, with temperatures rising to around 68 overnight. Southeast wind around 9 mph.
Day: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms. Mostly cloudy. High near 83, with temperatures falling to around 81 in the afternoon. Southeast wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Night: A chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 65. Southeast wind around 8 mph. Chance of precipitation is 30%.
Day: Partly sunny, with a high near 83. South wind around 7 mph.
Night: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. South wind around 6 mph. Chance of precipitation is 20%.
Day: A chance of showers and thunderstorms. Partly sunny, with a high near 82. South wind around 6 mph. Chance of precipitation is 30%.
Night: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Southeast wind around 5 mph. Chance of precipitation is 40%.
Day: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. Southeast wind 3 to 7 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. East wind around 7 mph. Chance of precipitation is 40%.
Day: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 72. Southeast wind around 9 mph. Chance of precipitation is 40%.
Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Southeast wind around 8 mph. Chance of precipitation is 40%.
Day: A slight chance of showers and thunderstorms. Partly sunny, with a high near 70. Southeast wind around 8 mph. Chance of precipitation is 20%.
Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Southeast wind around 7 mph. Chance of precipitation is 20%.
Day: A slight chance of rain showers. Partly sunny, with a high near 70. South wind around 7 mph. Chance of precipitation is 20%.
Sun's High Temperature
108 at Death Valley, CA
Sun's Low Temperature
18 at 27 Miles South Of Bonanza, UT