Frost dates for 68710Allen, NE
The average last spring frost in Allen is May 5 and the average first fall frost is October 1, giving a typical growing season of about 148 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 5
- Average first fall frost
- Oct 1
- Growing season
- 148 days
Safer after May 18 (1-in-10 risk)
Possible by Sep 17 (1-in-10 risk)
Last frost typically in 190 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 3 · May 14 · May 27 | Sep 9 · Sep 22 · Oct 5 | 131 days | 100% |
| Frost / freeze (32°F) | Apr 24 · May 5 · May 18 | Sep 17 · Oct 1 · Oct 15 | 148 days | 100% |
| Hard freeze (28°F) | Apr 11 · Apr 28 · May 10 | Sep 26 · Oct 11 · Oct 24 | 166 days | 100% |
Planting calendar for Allen
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 4 – Jun 10 |
| Tomatoes | Transplant outdoors | May 21 – Jun 11 |
| Peppers | Start seeds indoors | Apr 4 – May 5 |
| Peppers | Transplant outdoors | Jun 4 – Jul 5 |
| Eggplant | Start seeds indoors | Apr 21 – May 20 |
| Eggplant | Transplant outdoors | Jun 4 – Jul 5 |
| Cucumbers | Sow outdoors | Jun 4 – Jun 21 |
| Summer squash | Sow outdoors | May 21 – Jul 5 |
| Winter squash & pumpkins | Sow outdoors | Jun 4 – Jul 5 |
| Snap beans | Sow outdoors | May 21 – Jul 14 |
| Sweet corn | Sow outdoors | May 21 – Jun 11 |
| Watermelon & cantaloupe | Sow outdoors | Jun 4 – Jul 5 |
| Okra | Sow outdoors | May 28 – Jun 20 |
| Peas | Sow outdoors (spring) | Apr 4 – May 20 |
| Potatoes | Plant outdoors (spring) | Apr 4 – Jun 4 |
| Onions | Start seeds indoors (spring) | Feb 21 – Mar 20 |
| Onions | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (spring) | Mar 17 – Apr 20 |
| Broccoli | Transplant outdoors (spring) | Apr 21 – May 20 |
| Broccoli | Start seeds indoors (fall) | Jun 1 – Jun 11 |
| Broccoli | Transplant outdoors (fall) | Jul 1 – Jul 12 |
| Cabbage | Start seeds indoors (spring) | Mar 7 – Apr 4 |
| Cabbage | Transplant outdoors (spring) | Apr 4 – May 5 |
| Cabbage | Start seeds indoors (fall) | May 22 – Jun 21 |
| Cabbage | Transplant outdoors (fall) | Jun 21 – Jul 22 |
| Leaf lettuce | Sow outdoors (spring) | Apr 4 – Jun 20 |
| Leaf lettuce | Sow outdoors (fall) | Jun 21 – Aug 7 |
| Spinach | Sow outdoors (spring) | Mar 28 – May 11 |
| Spinach | Sow outdoors (fall) | Jul 8 – Aug 12 |
| Radishes | Sow outdoors (spring) | Apr 4 – May 25 |
| Radishes | Sow outdoors (fall) | Jun 21 – Aug 22 |
| Kale | Sow outdoors (spring) | Apr 21 – May 11 |
| Kale | Sow outdoors (fall) | Jun 14 – Jul 22 |
| Carrots | Sow outdoors (spring) | May 5 – Jun 20 |
| Carrots | Sow outdoors (fall) | May 22 – Jul 7 |
| Garlic | Plant outdoors (fall) | Sep 21 – Oct 22 |
Where these dates come from
ZIP code 68710 is matched to the NOAA station Wakefield, NE, 20.2 km away, at 1,408 ft elevation (42 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Wakefield, NE (used) | 1,408 ft | May 5 | Oct 1 |
| Concord, NE | 1,444 ft | May 2 | Oct 4 |
| Wayne, NE | 1,465 ft | Apr 29 | Oct 11 |
| Vermillion 2 Se, SD | 1,137 ft | May 3 | Oct 3 |
Frost dates near Allen
- Waterbury, NE 68785 · last May 5, first Oct 1
- Dixon, NE 68732 · last May 2, first Oct 4
- Concord, NE 68728 · last May 2, first Oct 4
- Ponca, NE 68770 · last May 3, first Oct 3
- Laurel, NE 68745 · last Apr 29, first Oct 11
- Wakefield, NE 68784 · last May 5, first Oct 1
- Newcastle, NE 68757 · last May 3, first Oct 3
- Emerson, NE 68733 · last May 5, first Oct 1
Frequently asked questions
- When is the last frost in Allen, NE?
- For ZIP code 68710, the average last spring frost (32°F) is May 5, based on NOAA 1991-2020 climate normals for the Wakefield, NE weather station. There is a 1-in-10 chance of a frost after May 18.
- When is the first frost in Allen, NE?
- The average first fall frost (32°F) is October 1. There is a 1-in-10 chance of frost by September 17, so tender plants are at risk from that point on.
- How long is the growing season in 68710?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 148 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.