When to plant Peas in Wyoming

In spring, from Apr 1 – May 15 in Casper to May 10 – June 15 in Laramie.

In fall, from May 1 – July 1 in Evanston to June 1 – July 15 in Sheridan.

USDA's earliest safe spring and latest safe fall planting dates, matched to each place's average frost dates.

Garden peas planting dates by place in Wyoming
PlaceSpringFall
CasperApr 1 – May 15June 1 – Aug 1
CheyenneApr 1 – May 15June 1 – Aug 1
CodyApr 1 – May 15June 1 – Aug 1
EvanstonMay 10 – June 15May 1 – July 1
GilletteApr 1 – May 15June 1 – Aug 1
Green RiverApr 15 – June 1June 1 – July 15
JacksonMay 10 – June 15May 10 – June 15
LaramieMay 10 – June 15May 10 – June 15
RivertonApr 1 – May 15June 1 – July 15
Rock SpringsApr 15 – June 1June 1 – July 15
SheridanApr 15 – June 1June 1 – July 15

Planting dates: USDA Home and Garden Bulletin No. 9 (1967), tables 4 and 5. Frost dates: NOAA U.S. Climate Normals 1991–2020. “—” means the place's frost date is outside the table. The full USDA table for garden peas.