Frost dates for 28111Monroe, NC
The average last spring frost in Monroe is April 3 and the average first fall frost is November 1, giving a typical growing season of about 213 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- Apr 3
- Average first fall frost
- Nov 1
- Growing season
- 213 days
Safer after Apr 18 (1-in-10 risk)
Possible by Oct 21 (1-in-10 risk)
Last frost typically in 152 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) | Mar 31 · Apr 14 · Apr 29 | Oct 12 · Oct 25 · Nov 5 | 193 days | 100% |
| Frost / freeze (32°F) | Mar 17 · Apr 3 · Apr 18 | Oct 21 · Nov 1 · Nov 14 | 213 days | 100% |
| Hard freeze (28°F) | Mar 1 · Mar 23 · Apr 7 | Oct 30 · Nov 10 · Nov 29 | 234 days | 100% |
Planting calendar for Monroe
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 3 – May 9 |
| Tomatoes | Transplant outdoors | Apr 19 – Jul 12 |
| Peppers | Start seeds indoors | Mar 3 – Apr 3 |
| Peppers | Transplant outdoors | May 3 – Jun 3 |
| Eggplant | Start seeds indoors | Mar 20 – Apr 18 |
| Eggplant | Transplant outdoors | May 3 – Jun 3 |
| Cucumbers | Sow outdoors | May 3 – Jul 22 |
| Summer squash | Sow outdoors | Apr 19 – Jun 3 |
| Winter squash & pumpkins | Sow outdoors | May 3 – Jun 3 |
| Snap beans | Sow outdoors | Apr 19 – Aug 14 |
| Sweet corn | Sow outdoors | Apr 19 – Jul 12 |
| Watermelon & cantaloupe | Sow outdoors | May 3 – Jun 3 |
| Okra | Sow outdoors | Apr 26 – May 19 |
| Peas | Sow outdoors (spring) | Mar 3 – Apr 18 |
| Potatoes | Plant outdoors (spring) | Mar 3 – May 3 |
| Onions | Start seeds indoors (spring) | Jan 20 – Feb 16 |
| Onions | Transplant outdoors (spring) | Mar 20 – Apr 18 |
| Broccoli | Start seeds indoors (spring) | Feb 13 – Mar 19 |
| Broccoli | Transplant outdoors (spring) | Mar 20 – Apr 18 |
| Broccoli | Start seeds indoors (fall) | Jul 2 – Jul 12 |
| Broccoli | Transplant outdoors (fall) | Aug 1 – Aug 12 |
| Cabbage | Start seeds indoors (spring) | Feb 3 – Mar 3 |
| Cabbage | Transplant outdoors (spring) | Mar 3 – Apr 3 |
| Cabbage | Start seeds indoors (fall) | Jun 22 – Jul 22 |
| Cabbage | Transplant outdoors (fall) | Jul 22 – Aug 22 |
| Leaf lettuce | Sow outdoors (spring) | Mar 3 – May 19 |
| Leaf lettuce | Sow outdoors (fall) | Jul 22 – Sep 7 |
| Spinach | Sow outdoors (spring) | Feb 24 – Apr 9 |
| Spinach | Sow outdoors (fall) | Aug 8 – Sep 12 |
| Radishes | Sow outdoors (spring) | Mar 3 – Apr 23 |
| Radishes | Sow outdoors (fall) | Jul 22 – Sep 22 |
| Kale | Sow outdoors (spring) | Mar 20 – Apr 9 |
| Kale | Sow outdoors (fall) | Jul 15 – Aug 22 |
| Carrots | Sow outdoors (spring) | Apr 3 – May 19 |
| Carrots | Sow outdoors (fall) | Jun 22 – Aug 7 |
| Garlic | Plant outdoors (fall) | Oct 22 – Nov 22 |
Where these dates come from
ZIP code 28111 is matched to the NOAA station Monroe 2 Se, NC, 4.8 km away, at 550 ft elevation (44 ft lower than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Monroe 2 Se, NC (used) | 550 ft | Apr 3 | Nov 1 |
| Monroe Ap, NC | 679 ft | Mar 31 | Nov 5 |
| Pageland, SC | 520 ft | Mar 27 | Nov 8 |
| Charlotte Douglas Ap, NC | 728 ft | Mar 30 | Nov 3 |
Frost dates near Monroe
- Monroe, NC 28110 · last Apr 3, first Nov 1
- Wingate, NC 28174 · last Apr 3, first Nov 1
- Indian Trail, NC 28079 · last Mar 31, first Nov 5
- Mineral Springs, NC 28108 · last Mar 31, first Nov 5
- Matthews, NC 28104 · last Mar 31, first Nov 5
- Marshville, NC 28103 · last Apr 3, first Nov 1
- Waxhaw, NC 28173 · last Mar 31, first Nov 5
- Charlotte, NC 28227 · last Mar 31, first Nov 5
Frequently asked questions
- When is the last frost in Monroe, NC?
- For ZIP code 28111, the average last spring frost (32°F) is April 3, based on NOAA 1991-2020 climate normals for the Monroe 2 Se, NC weather station. There is a 1-in-10 chance of a frost after April 18.
- When is the first frost in Monroe, NC?
- The average first fall frost (32°F) is November 1. There is a 1-in-10 chance of frost by October 21, so tender plants are at risk from that point on.
- How long is the growing season in 28111?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 213 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.