Frost dates for 49064Lawrence, MI
The average last spring frost in Lawrence is May 7 and the average first fall frost is October 11, giving a typical growing season of about 156 days. Dates are based on NOAA 1991-2020 climate normals.
- Average last spring frost
- May 7
- Average first fall frost
- Oct 11
- Growing season
- 156 days
Safer after May 22 (1-in-10 risk)
Possible by Sep 28 (1-in-10 risk)
Last frost typically in 186 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 2 · May 18 · Jun 1 | Sep 18 · Sep 30 · Oct 12 | 134 days | 100% |
| Frost / freeze (32°F) | Apr 23 · May 7 · May 22 | Sep 28 · Oct 11 · Oct 26 | 156 days | 100% |
| Hard freeze (28°F) | Apr 13 · Apr 26 · May 13 | Oct 10 · Oct 26 · Nov 10 | 182 days | 100% |
Planting calendar for Lawrence
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 6 – Jun 12 |
| Tomatoes | Transplant outdoors | May 23 – Jun 21 |
| Peppers | Start seeds indoors | Apr 6 – May 7 |
| Peppers | Transplant outdoors | Jun 6 – Jul 7 |
| Eggplant | Start seeds indoors | Apr 23 – May 22 |
| Eggplant | Transplant outdoors | Jun 6 – Jul 7 |
| Cucumbers | Sow outdoors | Jun 6 – Jul 1 |
| Summer squash | Sow outdoors | May 23 – Jul 7 |
| Winter squash & pumpkins | Sow outdoors | Jun 6 – Jul 7 |
| Snap beans | Sow outdoors | May 23 – Jul 24 |
| Sweet corn | Sow outdoors | May 23 – Jun 21 |
| Watermelon & cantaloupe | Sow outdoors | Jun 6 – Jul 7 |
| Okra | Sow outdoors | May 30 – Jun 22 |
| Peas | Sow outdoors (spring) | Apr 6 – May 22 |
| Potatoes | Plant outdoors (spring) | Apr 6 – Jun 6 |
| Onions | Start seeds indoors (spring) | Feb 23 – Mar 22 |
| Onions | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (spring) | Mar 19 – Apr 22 |
| Broccoli | Transplant outdoors (spring) | Apr 23 – May 22 |
| Broccoli | Start seeds indoors (fall) | Jun 11 – Jun 21 |
| Broccoli | Transplant outdoors (fall) | Jul 11 – Jul 22 |
| Cabbage | Start seeds indoors (spring) | Mar 9 – Apr 6 |
| Cabbage | Transplant outdoors (spring) | Apr 6 – May 7 |
| Cabbage | Start seeds indoors (fall) | Jun 1 – Jul 1 |
| Cabbage | Transplant outdoors (fall) | Jul 1 – Aug 1 |
| Leaf lettuce | Sow outdoors (spring) | Apr 6 – Jun 22 |
| Leaf lettuce | Sow outdoors (fall) | Jul 1 – Aug 17 |
| Spinach | Sow outdoors (spring) | Mar 30 – May 13 |
| Spinach | Sow outdoors (fall) | Jul 18 – Aug 22 |
| Radishes | Sow outdoors (spring) | Apr 6 – May 27 |
| Radishes | Sow outdoors (fall) | Jul 1 – Sep 1 |
| Kale | Sow outdoors (spring) | Apr 23 – May 13 |
| Kale | Sow outdoors (fall) | Jun 24 – Aug 1 |
| Carrots | Sow outdoors (spring) | May 7 – Jun 22 |
| Carrots | Sow outdoors (fall) | Jun 1 – Jul 17 |
| Garlic | Plant outdoors (fall) | Oct 1 – Nov 1 |
Where these dates come from
ZIP code 49064 is matched to the NOAA station Bloomingdale, MI, 21 km away, at 736 ft elevation (24 ft higher than the ZIP code's center). Nearby stations for comparison:
| Station | Elevation | Avg last frost | Avg first frost |
|---|---|---|---|
| Bloomingdale, MI (used) | 736 ft | May 7 | Oct 11 |
| Dowagiac 1 W, MI | 740 ft | May 4 | Oct 11 |
| Eau Claire 4 Ne, MI | 840 ft | Apr 22 | Oct 30 |
| S Haven, MI | 590 ft | Apr 17 | Nov 5 |
Frost dates near Lawrence
- Hartford, MI 49057 · last May 4, first Oct 17
- Decatur, MI 49045 · last May 4, first Oct 11
- Paw Paw, MI 49079 · last May 7, first Oct 11
- Bangor, MI 49013 · last Apr 17, first Nov 5
- Breedsville, MI 49027 · last May 7, first Oct 11
- Watervliet, MI 49098 · last May 5, first Oct 15
- Grand Junction, MI 49056 · last May 7, first Oct 11
- Lawton, MI 49065 · last Apr 28, first Oct 18
Frequently asked questions
- When is the last frost in Lawrence, MI?
- For ZIP code 49064, the average last spring frost (32°F) is May 7, based on NOAA 1991-2020 climate normals for the Bloomingdale, MI weather station. There is a 1-in-10 chance of a frost after May 22.
- When is the first frost in Lawrence, MI?
- The average first fall frost (32°F) is October 11. There is a 1-in-10 chance of frost by September 28, so tender plants are at risk from that point on.
- How long is the growing season in 49064?
- In half of years, the frost-free season (between the last and first 32°F frost) is at least 156 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.