When to plant Watermelon and cantaloupe in Wyoming
In spring, from June 1 – 15 in Casper to June 15 – July 1 in Sheridan.
In fall, from May 1 – June 15 in Green River to May 15 – June 1 in Gillette.
Cantaloupe (muskmelon) dates are the same as watermelon except where the table notes them.
USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.
| Place | Spring | Fall |
|---|---|---|
| Casper | June 1 – 15 | May 15 – June 1 |
| Cheyenne | June 1 – 15 | May 15 – June 1 |
| Cody | June 1 – 15 | May 15 – June 1 |
| Evanston | Not listed | Not listed |
| Gillette | June 1 – 15 | May 15 – June 1 |
| Green River | June 15 – July 1Cantaloupe (muskmelon): not listed | May 1 – June 15 |
| Jackson | Not listed | Not listed |
| Laramie | Not listed | Not listed |
| Riverton | June 1 – 15 | May 1 – June 15 |
| Rock Springs | June 15 – July 1Cantaloupe (muskmelon): not listed | May 1 – June 15 |
| Sheridan | June 15 – July 1Cantaloupe (muskmelon): not listed | May 1 – June 15 |
Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. The full USDA table for watermelon.