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Will it freeze in Conroe in the next 7 nights?
No overnight lows at or below 32°F are forecast in Conroe during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 60°F. Above 36°F.
NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.
No nights at or below 36°F in the National Weather Service forecast for the next 7 nights.
- Tonight 60°F Above 36°F · Partly Cloudy
- Fri, Nov 6 59°F Above 36°F · Mostly Cloudy then Patchy Fog
- Sat, Nov 7 55°F Above 36°F · Chance Showers And Thunderstorms
- Sun, Nov 8 50°F Above 36°F · Mostly Cloudy
- Mon, Nov 9 50°F Above 36°F · Slight Chance Rain Showers
- Tue, Nov 10 52°F Above 36°F · Partly Cloudy
- Wed, Nov 11 54°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 Conroe
The median first fall hard-freeze date (28°F) is December 23, from NOAA’s 1991–2020 Climate Normals at Conroe. 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 | Feb 16 · Mar 9 · Mar 31 | Nov 2 · Nov 20 · Dec 8 | 254 days |
| 32°F freeze | Jan 26 · Feb 24 · Mar 17 | Nov 11 · Dec 2 · Jan 2 | 285 days |
| 28°F hard freeze | Dec 31 · Feb 2 · Mar 6 | Nov 24 · Dec 23 · Jan 28 | 321 days |
Average high temperature by month
1991–2020 normals at Conroe
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 Conroe, TX come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Conroe (station USC00411956, elevation 245 ft), 0.1 mi from Conroe. 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 Conroe
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Willis, TX | 7.5 mi | Mar 11 | Nov 19 |
| Magnolia, TX | 17 mi | Feb 19 | Dec 3 |
| Tomball, TX | 18 mi | Feb 19 | Dec 3 |
| Cleveland, TX | 24 mi | Mar 7 | Nov 20 |
| Huntsville, TX | 26 mi | Mar 1 | Nov 28 |
| Humble, TX | 27 mi | Feb 13 | Dec 9 |
| Jersey Village, TX | 30 mi | Feb 19 | Dec 3 |
| Waller, TX | 32 mi | Feb 28 | Dec 2 |
| Prairie View, TX | 34 mi | Feb 28 | Dec 2 |
| Navasota, TX | 36 mi | Mar 7 | Nov 19 |
Frequently asked questions
When is the last frost in Conroe?
On average, the last spring frost (32°F) in Conroe is around February 24. In about 1 year in 10 it comes after March 17, and in 9 years in 10 it comes after January 26.
When is the first frost in Conroe?
The first fall frost (32°F) usually arrives around December 2. There’s a 10% chance of a freeze by November 11 and a 90% chance by January 2.
Can it frost in Conroe 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 March 9.
What growing zone is Conroe?
Conroe is in USDA Plant Hardiness Zone 9a (average annual extreme minimum temperature 20 to 25°F), based on the 2023 USDA map for ZIP code 77304. See growing zones in Texas.
More: all Texas frost dates · Texas growing zones · UV index today in Conroe · frost vs. freeze