September 7 - An unseasonably cold airmass settled into Wyoming Monday and Monday night behind a Canadian cold front. Record cold hit areas of central Wyoming this morning along with the first hard freeze for some areas.
|Natrona County Airport (Casper)||Sept 7||28*||36 in 2000|
|Sept 6||33||33 in 1956 (tie)|
|Sept 3||31^||32 in 2008|
* Record low temperature so early in the season for September 7th.
|Rock Springs Airport||Sept 7||35||36 in 2001|
|Sept 6||35||36 in 2001|
|Worland Airport||Sept 7||34||36 in 1984|