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Will it freeze in Plainfield in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 32°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).
Tonight: forecast low 44°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM EST to Fri, Nov 6, 6:00 AM EST.
3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 44°F Above 36°F · Scattered Rain Showers
- Fri, Nov 6 36°F Frost possible · Partly Cloudy
- Sat, Nov 7 32°F Freeze · Mostly Clear
- Sun, Nov 8 34°F Frost possible · Mostly Clear
- Mon, Nov 9 39°F Above 36°F · Clear
- Tue, Nov 10 38°F Above 36°F · Mostly Clear
- Wed, Nov 11 38°F Above 36°F · Partly Cloudy
Overnight lows from the National Weather Service forecast for this location. This covers the available forecast window, not the first freeze of the whole season. Frost can form above 32°F on clear, calm nights.
Frost and freeze probabilities
Freeze dates shift from year to year. Spring percentages describe the chance of a freeze after the stated date; fall percentages describe the chance of a freeze by that date. The 10% spring date is the cautious one: a later freeze happens about 1 year in 10.
These dates describe historical probabilities, not this year’s forecast or the earliest and latest possible freezes. Different weather stations or probability thresholds can produce different published dates for the same city.
Average first hard freeze in Plainfield
The median first fall hard-freeze date (28°F) is November 5, from NOAA’s 1991–2020 Climate Normals at Indianapolis Nwfo. This is the 50% probability date, not a forecast for this year.
| Temperature | Last spring date 90% · 50% · 10% chance of a later freeze | First fall date 10% · 50% · 90% chance of an earlier freeze | Season |
|---|---|---|---|
| 36°F frost possible | Apr 9 · Apr 23 · May 8 | Oct 5 · Oct 17 · Oct 28 | 175 days |
| 32°F freeze | Mar 31 · Apr 12 · Apr 28 | Oct 14 · Oct 27 · Nov 7 | 196 days |
| 28°F hard freeze | Mar 19 · Apr 1 · Apr 16 | Oct 24 · Nov 5 · Nov 20 | 216 days |
Average high temperature by month
1991–2020 normals at Indianapolis Nwfo
Average low temperature by month
Months with lows near or below freezing carry frost risk
Where these frost dates come from
The frost dates for Plainfield, IN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Indianapolis Nwfo (station USC00124260, elevation 790 ft), 5.0 mi from Plainfield. Local conditions (valleys, hilltops, distance to water, city heat) can shift frost dates by days or weeks. The hardiness zone is from the 2023 USDA Plant Hardiness Zone Map (USDA ARS and Oregon State University PRISM). See our methodology.
Frost dates near Plainfield
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Avon, IN | 5.0 mi | Apr 12 | Oct 29 |
| Mooresville, IN | 6.2 mi | Apr 12 | Oct 27 |
| Danville, IN | 8.1 mi | Apr 12 | Oct 29 |
| Speedway, IN | 9.9 mi | Apr 12 | Oct 29 |
| Brownsburg, IN | 9.9 mi | Apr 12 | Oct 29 |
| Indianapolis, IN | 14 mi | Apr 20 | Oct 21 |
| Bargersville, IN | 14 mi | Apr 20 | Oct 19 |
| Beech Grove, IN | 16 mi | Apr 20 | Oct 21 |
| Greenwood, IN | 16 mi | Apr 20 | Oct 21 |
| New Whiteland, IN | 17 mi | Apr 20 | Oct 19 |
Frequently asked questions
When is the last frost in Plainfield?
On average, the last spring frost (32°F) in Plainfield is around April 12. In about 1 year in 10 it comes after April 28, and in 9 years in 10 it comes after March 31.
When is the first frost in Plainfield?
The first fall frost (32°F) usually arrives around October 27. There’s a 10% chance of a freeze by October 14 and a 90% chance by November 7.
Can it frost in Plainfield after the last frost date?
Yes. Frost can form on clear, calm nights even when the air stays above 32°F. Temperatures of 36°F or lower, cold enough for frost on exposed plants, have a 50% chance of occurring after April 23.
What growing zone is Plainfield?
Plainfield is in USDA Plant Hardiness Zone 6a (average annual extreme minimum temperature −10 to −5°F), based on the 2023 USDA map for ZIP code 46168. See growing zones in Indiana.
More: all Indiana frost dates · Indiana growing zones · UV index today in Plainfield · frost vs. freeze