Back-to-Back Pacific Storms to Impact the West Coast; Heavy Snow in the Central Appalachians

Back-to-back powerful Pacific storm systems to impact the Pacific Northwest and northern California through the end of this week with heavy rain, flooding, strong winds, and higher elevation mountain snow. A strong, long-duration atmospheric river will accompany the Pacific storms, bringing excessive rainfall and flash flooding to southwest Oregon and northwest California through the week. Read More >

Central and Western Wyoming Climate Summaries

2022
Annual

2021
Annual

2023 Climate Summaries

Top 5 Weather Events for 2023

Riverton

Casper

Lander

Top 5 Events of 2023 (video presentations):


Number 5: The Thanksgiving Weekend Snowstorm	Number 4: June 23rd Severe Weather Outbreak

And the Top 3 events of 2023, combined into one exciting video, were...

Numbers 1, 2, and 3: A Winter to Remember

Click Here for the complete 2023 summary for Riverton

...Highlights of 2023...

Annual: Period of Record is 105 years
- 12th coldest year on record at 41.2F degrees. This was 2.7degrees below normal.
- 3rd Wettest year on record with 15.51 inches. This is 163% of Normal
- 1st Snowiest year on record with 92 inches. This is 208% of normal.
- 1st Snowiest Snowfall Season (July 2022-June 2023) with 94.7 inches of snow.
Monthly Temperatures: 3rd coldest February, 2nd coldest March, 9th coldest April and 9th warmest May on record.
Monthly Precipitation: 1st wettest January, 3rd wettest June, 7th wettest August, 10th wettest October and 3rd wettest November on record.
Monthly Snowfall: 1st snowiest January, 9th snowiest April, and 1st snowiest November on record.

Learn more about the National Weather Service's efforts to build a Weather-Ready Nation!

Click Here for the complete 2023 summary for Casper

...Highlights of 2023...

Annual:
- 24th coldest year on record at 44.6 degrees, just 1 degrees below normal.
- 11th wettest year with 15.41 inches, 126% of normal.
- 5th snowiest year with 116.1 inches, 161% of normal.
- 3rd snowiest snowfall season (July 2022-June 2023) with 134.5 inches.
- Highest wind gust was 70 mph on April 27th.
Monthly Temperatures: 8th coldest March on record at 26.7 degrees. 3rd warmest December at 32 degrees.
Monthly Precipitation: 1st wettest January, 7th wettest June on record. New all-time daily high precipitation on January 11th with 0.55". 10th wettest October and 2nd driest December on record.
Monthly Snowfall: 2nd snowiest January and April and 10th snowiest February on record. New all-time daily snowfall on April 3rd with 26.7"

Click Here for the complete 2023 summary for Lander

...Highlights of 2023...

Annual - Period of Record 132 years (1892 - 2023)
- 33rd Coldest Year on record at 42.7 degrees, 2.4 degrees below normal
- 16th Wettest Year on record with 17.72 inches, 133% of normal precipitation.
- 25th Most Snowiest year on record with 110.3 inches, 126% of normal.
- 28th Most Seasonal Snow (July 2022 - June 2023) with 107 inches of snow.
- The peak wind gust for the year was 73 mph which occurred on July 26th.
Monthly Temperature: 9th coldest February, 3rd coldest March,

Monthly Precipitation: 1st wettest January (2.55 inches), 10th wettest June (3.14 inches), 8th wettest August (1.58 inches)

Monthly Snowfall: 1st snowiest January with 36.2 inches.

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