National Weather Service United States Department of Commerce

2023 Climate Summaries

 

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

 

Riverton Climate Summary Banner

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...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.

 


 

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Casper Climate Summary Banner

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...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"

Lander Climate Summary Banner

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...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.