Frost dates for 67877Sublette, KS
The average last spring frost in Sublette is April 23 and the average first fall frost is October 21, giving a typical growing season of about 179 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 23
- Average first fall frost
- Oct 21
- Growing season
- 179 days
Safer after May 5 (1-in-10 risk)
Possible by Oct 5 (1-in-10 risk)
Last frost typically in 178 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) | Apr 18 · May 1 · May 14 | Sep 27 · Oct 11 · Oct 23 | 160 days | 100% |
| Frost / freeze (32°F) | Apr 7 · Apr 23 · May 5 | Oct 5 · Oct 21 · Nov 2 | 179 days | 100% |
| Hard freeze (28°F) | Mar 27 · Apr 12 · Apr 28 | Oct 15 · Oct 29 · Nov 9 | 199 days | 100% |
Planting calendar for Sublette
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 | Mar 23 – May 29 |
| Tomatoes | Transplant outdoors | May 9 – Jul 1 |
| Peppers | Start seeds indoors | Mar 23 – Apr 23 |
| Peppers | Transplant outdoors | May 23 – Jun 23 |
| Eggplant | Start seeds indoors | Apr 9 – May 8 |
| Eggplant | Transplant outdoors | May 23 – Jun 23 |
| Cucumbers | Sow outdoors | May 23 – Jul 11 |
| Summer squash | Sow outdoors | May 9 – Jun 23 |
| Winter squash & pumpkins | Sow outdoors | May 23 – Jun 23 |
| Snap beans | Sow outdoors | May 9 – Aug 3 |
| Sweet corn | Sow outdoors | May 9 – Jul 1 |
| Watermelon & cantaloupe | Sow outdoors | May 23 – Jun 23 |
| Okra | Sow outdoors | May 16 – Jun 8 |
| Peas | Sow outdoors (spring) | Mar 23 – May 8 |
| Potatoes | Plant outdoors (spring) | Mar 23 – May 23 |
| Onions | Start seeds indoors (spring) | Feb 9 – Mar 8 |
| Onions | Transplant outdoors (spring) | Apr 9 – May 8 |
| Broccoli | Start seeds indoors (spring) | Mar 5 – Apr 8 |
| Broccoli | Transplant outdoors (spring) | Apr 9 – May 8 |
| Broccoli | Start seeds indoors (fall) | Jun 21 – Jul 1 |
| Broccoli | Transplant outdoors (fall) | Jul 21 – Aug 1 |
| Cabbage | Start seeds indoors (spring) | Feb 23 – Mar 23 |
| Cabbage | Transplant outdoors (spring) | Mar 23 – Apr 23 |
| Cabbage | Start seeds indoors (fall) | Jun 11 – Jul 11 |
| Cabbage | Transplant outdoors (fall) | Jul 11 – Aug 11 |
| Leaf lettuce | Sow outdoors (spring) | Mar 23 – Jun 8 |
| Leaf lettuce | Sow outdoors (fall) | Jul 11 – Aug 27 |
| Spinach | Sow outdoors (spring) | Mar 16 – Apr 29 |
| Spinach | Sow outdoors (fall) | Jul 28 – Sep 1 |
| Radishes | Sow outdoors (spring) | Mar 23 – May 13 |
| Radishes | Sow outdoors (fall) | Jul 11 – Sep 11 |
| Kale | Sow outdoors (spring) | Apr 9 – Apr 29 |
| Kale | Sow outdoors (fall) | Jul 4 – Aug 11 |
| Carrots | Sow outdoors (spring) | Apr 23 – Jun 8 |
| Carrots | Sow outdoors (fall) | Jun 11 – Jul 27 |
| Garlic | Plant outdoors (fall) | Oct 11 – Nov 11 |
Where these dates come from
ZIP code 67877 is matched to the NOAA station Sublette 7Wsw, KS, 16.6 km away, at 2,949 ft elevation (32 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Sublette 7Wsw, KS (used) | 2,949 ft | Apr 23 | Oct 21 |
| Montezuma, KS | 2,770 ft | Apr 23 | Oct 20 |
| Ulysses 3Ne, KS | 3,094 ft | Apr 28 | Oct 16 |
| Garden City Rgnl Ap, KS | 2,882 ft | Apr 27 | Oct 15 |
Frost dates near Sublette
- Satanta, KS 67870 · last Apr 23, first Oct 21
- Copeland, KS 67837 · last Apr 23, first Oct 20
- Montezuma, KS 67867 · last Apr 23, first Oct 20
- Plains, KS 67869 · last Apr 20, first Oct 22
- Kismet, KS 67859 · last Apr 20, first Oct 24
- Pierceville, KS 67868 · last Apr 27, first Oct 15
- Ingalls, KS 67853 · last Apr 20, first Oct 20
- Moscow, KS 67952 · last Apr 20, first Oct 22
Frequently asked questions
- When is the last frost in Sublette, KS?
- For ZIP code 67877, the average last spring frost (32°F) is April 23, based on NOAA 1991-2020 climate normals for the Sublette 7Wsw, KS weather station. There is a 1-in-10 chance of a frost after May 5.
- When is the first frost in Sublette, KS?
- The average first fall frost (32°F) is October 21. There is a 1-in-10 chance of frost by October 5, so tender plants are at risk from that point on.
- How long is the growing season in 67877?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 179 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.