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 clear. Low around 48, with temperatures rising to around 50 overnight. North wind around 3 mph.
Day: Sunny, with a high near 76. North wind 5 to 10 mph.
Night: Clear. Low around 50, with temperatures rising to around 52 overnight. North northeast wind 2 to 9 mph.
Day: Sunny, with a high near 88. North northeast wind around 3 mph.
Night: Clear, with a low around 54. West southwest wind around 3 mph.
Day: Sunny, with a high near 79.
Night: Mostly clear, with a low around 53.
Day: Sunny, with a high near 76.
Night: Mostly clear, with a low around 52.
Day: Sunny, with a high near 82.
Night: Mostly clear, with a low around 56.
Day: Mostly sunny, with a high near 81.
Night: Partly cloudy, with a low around 55.
Day: Mostly sunny, with a high near 77.
Sun's High Temperature
108 at Death Valley, CA
Sun's Low Temperature
18 at 27 Miles South Of Bonanza, UT