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Will it freeze in Trenton in the next 7 nights?
The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 28°F (Fri, Nov 6, 6:00 PM CST to Sat, Nov 7, 6:00 AM CST).
Tonight: forecast low 40°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
3 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.
- Tonight 40°F Above 36°F · Cloudy
- Fri, Nov 6 28°F Hard freeze · Partly Cloudy
- Sat, Nov 7 33°F Frost possible · Mostly Clear
- Sun, Nov 8 36°F Frost possible · Clear
- Mon, Nov 9 41°F Above 36°F · Clear
- Tue, Nov 10 41°F Above 36°F · Partly Cloudy
- Wed, Nov 11 41°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 Trenton
The median first fall hard-freeze date (28°F) is October 29, from NOAA’s 1991–2020 Climate Normals at Trenton. 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 13 · Apr 27 · May 9 | Sep 26 · Oct 11 · Oct 23 | 165 days |
| 32°F freeze | Apr 3 · Apr 16 · Apr 29 | Oct 5 · Oct 20 · Nov 1 | 184 days |
| 28°F hard freeze | Mar 22 · Apr 6 · Apr 21 | Oct 16 · Oct 29 · Nov 11 | 204 days |
Average high temperature by month
1991–2020 normals at Trenton
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 Trenton, MO come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Trenton (station USC00238444, elevation 837 ft), 0.3 mi from Trenton. 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 Trenton
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Chillicothe, MO | 20 mi | Apr 15 | Oct 21 |
| Cameron, MO | 41 mi | Apr 15 | Oct 24 |
| Kirksville, MO | 55 mi | Apr 21 | Oct 19 |
| Centerville, IA | 59 mi | Apr 28 | Oct 14 |
| Richmond, MO | 59 mi | Apr 19 | Oct 18 |
| Excelsior Springs, MO | 62 mi | Apr 19 | Oct 17 |
| Kearney, MO | 64 mi | Apr 19 | Oct 17 |
| Macon, MO | 65 mi | Apr 8 | Oct 28 |
| Savannah, MO | 66 mi | Apr 17 | Oct 19 |
| Osceola, IA | 66 mi | Apr 29 | Oct 9 |
Frequently asked questions
When is the last frost in Trenton?
On average, the last spring frost (32°F) in Trenton is around April 16. In about 1 year in 10 it comes after April 29, and in 9 years in 10 it comes after April 3.
When is the first frost in Trenton?
The first fall frost (32°F) usually arrives around October 20. There’s a 10% chance of a freeze by October 5 and a 90% chance by November 1.
Can it frost in Trenton 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 27.
What growing zone is Trenton?
Trenton 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 64683. See growing zones in Missouri.
More: all Missouri frost dates · Missouri growing zones · frost vs. freeze