Provo, UT Frost Dates
Average frost dates, USDA hardiness zone, and growing season length for Provo, Utah.
Gardening in Provo
Utah County's largest city sits at the base of the Wasatch Range, where mountain snowmelt irrigates a fertile valley. BYU's presence creates a young, energetic population with strong food-growing traditions rooted in LDS self-reliance culture.
Your 186-day growing season benefits from the Utah Valley's warm microclimate — the mountains trap heat and the lake moderates extremes. The valley floor soil is deep alluvial, naturally fertile. Irrigation is essential but water from mountain snowmelt is generally reliable.
Utah's canning and food preservation traditions run deep, and Provo is their epicenter. BYU's agricultural heritage and the strong LDS emphasis on self-sufficiency create a gardening culture where food production is both practical skill and spiritual practice.
What This Means for Provo Gardeners
The average last spring frost in Provo is around April 15, and the average first fall frost arrives around October 18. That gives you approximately 186 frost-free days to work with.
A solid, workable season. Most standard vegetable varieties have enough time to mature, though the longest-season crops (like sweet potatoes at 90+ days or large watermelons at 85+ days) need to be started early and chosen carefully. Indoor seed starting isn't optional — it's how you buy the extra weeks that make the difference between a good harvest and a great one.
These dates are based on NOAA 30-year Climate Normal data for the Provo area. Your actual frost dates could shift 2-3 weeks in either direction in any given year. Learn more about our data sources.
What to Grow in Provo
Provo's 186-day season gives you plenty of time for most vegetables with good planning. Start warm-season crops indoors to maximize your window. Cool-season crops thrive in your spring and fall shoulder seasons. Recommended starting points: tomatoes, peppers, lettuce, carrots, beans, broccoli, garlic, and basil.
See the full Utah planting guide for all 40 plants: Utah Planting Calendar. Or enter your zip code for exact planting dates personalized to Provo.
More About Zone 7A
Provo is in USDA Hardiness Zone 7A, which means average annual extreme minimum temperatures between 0°F to 5°F. View the full Zone 7A planting guide.
See the complete planting calendar for Utah: Utah Planting Calendar.
Other Cities in Utah
Frequently Asked Questions
These dates are based on NOAA's 30-year Climate Normal data for the Provo area. They represent historical averages, not predictions. In any given year, the actual last frost could be 2-3 weeks earlier or later. Microclimates within Provo (urban heat islands, hilltops, low-lying valleys) can also shift your local frost dates by a week or more.
Start warm-season seeds indoors 6-8 weeks before your last frost (April 15) to maximize your 186-day window. Direct sow cold-hardy crops like peas and lettuce 3-4 weeks before last frost. Every week of early indoor starting matters at this season length. Enter your zip code for exact dates.