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(PHOTOS) Clouds cover Casper Mountain on last day of summer 2022

Trees are obscured by clouds on Casper Mountain on Wednesday, Sept. 21, 2022. (Dan Cepeda, Oil City News)

CASPER, Wyo. — A cooling layer of clouds covered Casper Mountain in the morning on Wednesday, the last official full day of the summer season.

The Northern Hemisphere autumnal equinox arrives tomorrow, specifically at 7:03 p.m. Mountain Time. According to the Old Farmer’s Almanac, the autumnal equinox is when the “Sun crosses what we call the ‘celestial equator’ — an imaginary extension of Earth’s equator line into space.” 

The Almanac says the equinox occurs precisely when the Sun’s center passes through this line.

This summer produced quite a lot of record-breaking temperatures in the west. While it’s possible for temperatures to warm up again before winter, the National Weather Service in Riverton is forecasting highs around 70 degrees through the weekend, with some rain possible on Wednesday afternoon.


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