When to plant cantaloupe in Wyoming

Plant out in Cheyenne

May 28–Jun 11

Across Wyoming the window opens between May 24 and June 21. Find your city below; the dates follow each town's own average last frost.

Start indoors, Cheyenne: Apr 16–Apr 23
Plant out, Cheyenne: May 28–Jun 11
Sow outdoors, Cheyenne: May 28–Jun 11
Last sowing for a harvest: Jun 19
Last frost, Cheyenne: May 14

Start seeds indoors 3–4 weeks before the last frost; plant out 2–4 weeks after the last frost; sow outdoors 2–4 weeks after the last frost. A ripe cantaloupe slips off the vine with a light push.

Cantaloupe planting dates by city

Start indoorsPlant outSow outdoorsFall plantingAverage last and first frost

JanFebMarAprMayJunJulAugSepOctNovDec

CheyenneMay 28–Jun 11

CasperMay 24–Jun 7

GilletteMay 29–Jun 12

LaramieJun 21–Jul 5

Rock SpringsJun 7–Jun 21

SheridanJun 4–Jun 18

In Laramie the frost-free season is shorter than cantaloupe need. Start plants indoors and pick early varieties.

Questions

When should I plant cantaloupe in Wyoming?

In Cheyenne, plant out from May 28 to June 11. Across Wyoming the window opens between May 24 and June 21, depending on the local last frost.

How is this date worked out?

Start seeds indoors 3–4 weeks before the last frost; plant out 2–4 weeks after the last frost; sow outdoors 2–4 weeks after the last frost. Frost dates are NOAA 1991–2020 averages for the weather station nearest each city.

Is the season long enough for cantaloupe everywhere in Wyoming?

Not quite. In Laramie the frost-free season is shorter than the time cantaloupe need to ripen. Start plants indoors and pick an early variety.