When to plant Cucumbers in Wyoming

In spring, from May 20 – June 15 in Casper to June 1 – 15 in Sheridan.

In fall, June 1 – July 1.

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

Cucumbers planting dates by place in Wyoming
PlaceSpringFall
CasperMay 20 – June 15June 1 – July 1
CheyenneMay 20 – June 15June 1 – July 1
CodyMay 20 – June 15June 1 – July 1
EvanstonNot listedNot listed
GilletteMay 20 – June 15June 1 – July 1
Green RiverJune 1 – 15June 1 – 15
JacksonNot listedNot listed
LaramieNot listedNot listed
RivertonMay 20 – June 15June 1 – 15
Rock SpringsJune 1 – 15June 1 – 15
SheridanJune 1 – 15June 1 – 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 cucumbers.