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: A slight chance of rain between 11pm and midnight. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. East northeast wind around 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Day: Mostly sunny, with a high near 70. North wind 1 to 6 mph.
Night: Mostly clear, with a low around 52. North wind around 5 mph.
Day: Sunny, with a high near 86. East northeast wind around 3 mph.
Night: Clear, with a low around 58. Southeast wind around 5 mph.
Day: Sunny, with a high near 75.
Night: Partly cloudy, with a low around 52.
Day: Mostly sunny, with a high near 71.
Night: Mostly clear, with a low around 52.
Day: Sunny, with a high near 74.
Night: Mostly clear, with a low around 54.
Day: A slight chance of rain after 5pm. Mostly sunny, with a high near 75.
Night: A chance of rain. Mostly cloudy, with a low around 55.
Day: A chance of rain. Partly sunny, with a high near 71.
Sun's High Temperature
108 at Death Valley, CA
Sun's Low Temperature
18 at 27 Miles South Of Bonanza, UT