Frost dates for 84028Garden City, UT
The average last spring frost in Garden City is May 15 and the average first fall frost is October 4, giving a typical growing season of about 140 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 15
- Average first fall frost
- Oct 4
- Growing season
- 140 days
Safer after Jun 5 (1-in-10 risk)
Possible by Sep 22 (1-in-10 risk)
Last frost typically in 200 days
Frost risk by date
NOAA reports frost dates as probabilities. The middle date is the average (a 50% chance). For spring, the 10% date is a safer planting date: frost after it happens in about 1 year in 10. Light frost (36°F) can damage tender plants; a hard freeze (28°F) kills most annuals.
| Temperature | Last spring: 90% / 50% / 10% chance | First fall: 10% / 50% / 90% chance | Growing season (50%) | Years with at least one |
|---|---|---|---|---|
| Light frost (36°F) | May 15 · Jun 4 · Jun 21 | Sep 11 · Sep 24 · Oct 6 | 111 days | 100% |
| Frost / freeze (32°F) | Apr 30 · May 15 · Jun 5 | Sep 22 · Oct 4 · Oct 17 | 140 days | 100% |
| Hard freeze (28°F) | Apr 15 · Apr 30 · May 22 | Oct 1 · Oct 15 · Oct 27 | 167 days | 100% |
Planting calendar for Garden City
Planting windows from the University of Maryland Extension calendar, shifted to your average frost dates. Use them as a starting point and adjust for seed packet instructions and local conditions.
| Crop | Task | Window |
|---|---|---|
| Tomatoes | Start seeds indoors | Apr 14 – Jun 20 |
| Tomatoes | Transplant outdoors | May 31 – Jun 14 |
| Peppers | Start seeds indoors | Apr 14 – May 15 |
| Peppers | Transplant outdoors | Jun 14 – Jul 15 |
| Eggplant | Start seeds indoors | May 1 – May 30 |
| Eggplant | Transplant outdoors | Jun 14 – Jul 15 |
| Cucumbers | Sow outdoors | Jun 14 – Jun 24 |
| Summer squash | Sow outdoors | May 31 – Jul 15 |
| Winter squash & pumpkins | Sow outdoors | Jun 14 – Jul 15 |
| Snap beans | Sow outdoors | May 31 – Jul 17 |
| Sweet corn | Sow outdoors | May 31 – Jun 14 |
| Watermelon & cantaloupe | Sow outdoors | Jun 14 – Jul 15 |
| Okra | Sow outdoors | Jun 7 – Jun 30 |
| Peas | Sow outdoors (spring) | Apr 14 – May 30 |
| Potatoes | Plant outdoors (spring) | Apr 14 – Jun 14 |
| Onions | Start seeds indoors (spring) | Mar 3 – Mar 30 |
| Onions | Transplant outdoors (spring) | May 1 – May 30 |
| Broccoli | Start seeds indoors (spring) | Mar 27 – Apr 30 |
| Broccoli | Transplant outdoors (spring) | May 1 – May 30 |
| Broccoli | Start seeds indoors (fall) | Jun 4 – Jun 14 |
| Broccoli | Transplant outdoors (fall) | Jul 4 – Jul 15 |
| Cabbage | Start seeds indoors (spring) | Mar 17 – Apr 14 |
| Cabbage | Transplant outdoors (spring) | Apr 14 – May 15 |
| Cabbage | Start seeds indoors (fall) | May 25 – Jun 24 |
| Cabbage | Transplant outdoors (fall) | Jun 24 – Jul 25 |
| Leaf lettuce | Sow outdoors (spring) | Apr 14 – Jun 30 |
| Leaf lettuce | Sow outdoors (fall) | Jun 24 – Aug 10 |
| Spinach | Sow outdoors (spring) | Apr 7 – May 21 |
| Spinach | Sow outdoors (fall) | Jul 11 – Aug 15 |
| Radishes | Sow outdoors (spring) | Apr 14 – Jun 4 |
| Radishes | Sow outdoors (fall) | Jun 24 – Aug 25 |
| Kale | Sow outdoors (spring) | May 1 – May 21 |
| Kale | Sow outdoors (fall) | Jun 17 – Jul 25 |
| Carrots | Sow outdoors (spring) | May 15 – Jun 30 |
| Carrots | Sow outdoors (fall) | May 25 – Jul 10 |
| Garlic | Plant outdoors (fall) | Sep 24 – Oct 25 |
Where these dates come from
ZIP code 84028 is matched to the NOAA station Bear Lake Sp, UT, 3 km away, at 5,928 ft elevation (63 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bear Lake Sp, UT (used) | 5,928 ft | May 15 | Oct 4 |
| Laketown, UT | 5,980 ft | May 28 | Sep 24 |
| Lifton Pumping Stn, ID | 5,935 ft | May 19 | Sep 21 |
| Richmond, UT | 4,680 ft | May 11 | Oct 5 |
Frost dates near Garden City
- Fish Haven, ID 83287 · last May 15, first Oct 4
- Laketown, UT 84038 · last Jun 14, first Sep 1
- Saint Charles, ID 83272 · last May 19, first Sep 21
- Bloomington, ID 83223 · last May 19, first Sep 21
- Dingle, ID 83233 · last May 19, first Sep 21
- Paris, ID 83261 · last Jun 17, first Sep 3
- Franklin, ID 83237 · last May 16, first Sep 28
- Richmond, UT 84333 · last May 11, first Oct 5
Frequently asked questions
- When is the last frost in Garden City, UT?
- For ZIP code 84028, the average last spring frost (32°F) is May 15, based on NOAA 1991-2020 climate normals for the Bear Lake Sp, UT weather station. There is a 1-in-10 chance of a frost after June 5.
- When is the first frost in Garden City, UT?
- The average first fall frost (32°F) is October 4. There is a 1-in-10 chance of frost by September 22, so tender plants are at risk from that point on.
- How long is the growing season in 84028?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 140 days long.
- Are these frost dates a forecast?
- No. They are 30-year averages and probabilities from NOAA weather station records. Use them to plan, then watch your local forecast before planting tender crops or leaving them uncovered.