- 12Cities compared
- 166 daysLongest calendar: Salt Lake City
- 0Year-round cities
Utah is not one climate: Salt Lake City banks 166 workable lawn seeding days a year while Logan gets 115 — a spread the table below itemizes month by month. Season boundaries mark the first and last month averaging 8+ workable days against the label rules (50–85°F, nights 32°F+).
If one month anchors the Utah calendar it's May, the statewide leader in workable days. Use this page to pick the month, then the city page's 10-day strip to pick the days — and the national lawn seeding guide for the physics behind each rule.
Chasing the season across state lines? Step back to Lawn Seeding in Texas or push on to Lawn Seeding in Vermont.
Cities in Utah
| City | Peak months | Season | Workable days/yr |
|---|---|---|---|
| Salt Lake City | May, Oct, Apr | March–June | 166 |
| Provo | May, Oct, Apr | March–June | 139 |
| Ogden | May, Oct, Apr | March–June | 150 |
| St. George | Mar, Apr, Oct | March–May | 122 |
| West Valley City | May, Oct, Apr | March–June | 166 |
| Logan | May, Jun, Sep | April–June | 115 |
| West Jordan | May, Oct, Apr | March–June | 166 |
| Orem | May, Oct, Apr | March–June | 139 |
| Sandy | May, Oct, Apr | March–June | 166 |
| Lehi | May, Sep, Jun | April–June | 118 |
| Layton | May, Oct, Sep | April–June | 148 |
| South Jordan | May, Oct, Apr | March–June | 166 |
Top 10 Utah calendars for lawn seeding
The rules behind these numbers
| Check | Threshold | Why it matters |
|---|---|---|
| Air temperature | 50–85°F (low-temp formulas from 55°F) | Cool-season grasses germinate best with daytime highs of roughly 60–80°F. |
| Overnight low | ≥32°F during the first 48 h (≥40°F preferred) | Seed survives a light frost, but sustained cold stalls germination. |
| Dry before | no soaking (≥1.0") in the prior 24 h | Seeding into mud makes ruts and washes seed into low spots. |
| Dry after | <0.5" rain for 24 h after | Light rain after seeding helps. A 0.5"+ downpour washes seed out. |
| Wind | ≤15 mph (broadcast seed drifts up to 25 mph) | Broadcast spreading above 15 mph lands seed everywhere but the lawn. |
Always follow your product label — formulas vary. The table above is the typical range across major manufacturers, not a promise about your can.
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