An unseasonably strong cold front moved across Wyoming Friday night and Saturday ushering in well below average temperatures and widespread precipitation (especially east of the Divide). Highs this past weekend were 15 to 25 degrees below average with lows 10 to 20 degrees below average. Snow fell generally above 9000 feet with a few inches in the Bighorns above 10000 feet. Some lower elevations west of the Divide reached freezing Saturday night. Brrr! In addition a significant hail storm affected the Riverton area around 700 pm Saturday evening with penny to quarter size hail. Although temperatures will be warmer the next couple of days, they will still be well below average for this time of year. A ridge is expected to build into the area late this week bringing back more typical summer temperatures.
So far Casper is on pace to have the coolest summer (June 1 - Aug 31) on record (1939 to present). Downtown Riverton is on pace to have the 17th coolest summer on record (1907 to present). Lander currently is the 27th coolest summer on record (1891 to present). Rock Springs would be the 9th coolest with records going back to 1948. So if you thought it was a cool summer, you would be right.
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