Does a Wall in Wyoming Need a Vapor Barrier?
Yes. Wyoming’s 23 counties fall entirely within IECC Climate Zones 6B, 7, and 5B, none of which qualifies for the code’s warm-climate exception.
Gardening in Wyoming
Everything we have worked out for Wyoming: what to plant and when, which varieties finish in time, the pests that actually turn up here, and the jobs that pay off month by month. We also cover the rest of the property, from lawns and soil to home care and energy, because a garden rarely stops at the vegetable bed.
The numbers first, because everything else follows from them. Measured at the weather station in Cheyenne, the last spring freeze runs May 7 to May 18 and the first fall freeze runs September 24 to October 5, USDA zones 3a-6a, 2,552 growing degree days in the year.
Garlic does well: 30.4 weeks below 40 °F, comfortably past the six it needs to form a proper head.
Elsewhere on the property in Wyoming: the pests that turn up here.
Figures from NOAA's 1991-2020 climate normals. A state is not one climate: elevation, a large lake or the coast can move these dates by two weeks either way, so check your own county with the extension service before you spend money.
Heating With Pellets in Wyoming: What a Winter Takes
A pellet stove in Wyoming isn’t decoration. With roughly 6,959 heating degree days a year at the Cheyenne reference station, this is one of the coldest…
Will Pumpkins Ripen Before Frost in Wyoming?
Most Wyoming pumpkin patches lose the race not because the fruit was planted too late, but because the flower that made it opened too late.
Potato psyllid in Wyoming: When It Shows Up and What Stops It
Potato psyllid doesn’t overwinter in Wyoming. It migrates in on wind currents from breeding grounds farther south, and University of Wyoming Extension…
Garden slug in Wyoming: When It Shows Up and What Stops It
Garden slugs in Wyoming become active once spring soil holds steady moisture and nighttime temperatures stop dropping below freezing, usually as the…
Sugarbeet root aphid in Wyoming: When It Shows Up and What Stops It
Sugarbeet root aphid becomes a problem in Wyoming’s beet fields once soil temperatures climb through late spring into summer, when winged migrants leave…
Trees, Shrubs and Perennials for Wyoming: What Will Not Survive
Wyoming’s hardiness range runs from 3a to 6a, a spread wide enough that a shrub thriving in Cheyenne can freeze out entirely near Jackson or up in the…
How Much Insulation Does a Home in Wyoming Need?
Wyoming isn’t a one-size answer. The state’s 23 counties fall into three different IECC climate zones, which means the attic, floor, and crawlspace…
When Can You Turn the Heat Off in Wyoming?
In Wyoming, the heat almost never gets a true day off. August comes closest, but even then the house is still asking for something.
Will Sweet Corn Ripen in Wyoming?
Sweet corn can ripen in Wyoming, but only in the narrow window between when the soil finally warms and when the first fall frost lands.