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Will it freeze in Bloomington in the next 7 nights?
No overnight lows at or below 32°F are forecast in Bloomington during the next 7 nights in the available NWS frost forecast.
Tonight: forecast low 45°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 45°F Above 36°F · Mostly Cloudy then Isolated Rain Showers
- Fri, Nov 6 34°F Frost possible · Partly Cloudy
- Sat, Nov 7 33°F Frost possible · Mostly Clear
- Sun, Nov 8 35°F Frost possible · Clear
- Mon, Nov 9 39°F Above 36°F · Mostly Clear
- Tue, Nov 10 39°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 Bloomington
The median first fall hard-freeze date (28°F) is November 4, from NOAA’s 1991–2020 Climate Normals at Bloomington Indiana University. 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 11 · Apr 28 · May 14 | Oct 1 · Oct 16 · Oct 28 | 170 days |
| 32°F freeze | Mar 31 · Apr 15 · May 3 | Oct 11 · Oct 26 · Nov 9 | 192 days |
| 28°F hard freeze | Mar 19 · Apr 2 · Apr 22 | Oct 23 · Nov 4 · Nov 21 | 216 days |
Average high temperature by month
1991–2020 normals at Bloomington Indiana University
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 Bloomington, IN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Bloomington Indiana University (station USC00120784, elevation 830 ft), 0.7 mi from Bloomington. 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 Bloomington
| City | Distance | Last spring frost | First fall frost |
|---|---|---|---|
| Ellettsville, IN | 6.8 mi | Apr 15 | Oct 26 |
| Martinsville, IN | 18 mi | Apr 24 | Oct 15 |
| Bedford, IN | 21 mi | Apr 20 | Oct 20 |
| Bargersville, IN | 31 mi | Apr 20 | Oct 19 |
| Mooresville, IN | 32 mi | Apr 12 | Oct 27 |
| Columbus, IN | 32 mi | Apr 11 | Oct 25 |
| Franklin, IN | 34 mi | Apr 20 | Oct 19 |
| Linton, IN | 35 mi | Apr 14 | Oct 26 |
| New Whiteland, IN | 35 mi | Apr 20 | Oct 19 |
| Whiteland, IN | 36 mi | Apr 20 | Oct 19 |
Frequently asked questions
When is the last frost in Bloomington?
On average, the last spring frost (32°F) in Bloomington is around April 15. In about 1 year in 10 it comes after May 3, and in 9 years in 10 it comes after March 31.
When is the first frost in Bloomington?
The first fall frost (32°F) usually arrives around October 26. There’s a 10% chance of a freeze by October 11 and a 90% chance by November 9.
Can it frost in Bloomington 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 28.
What growing zone is Bloomington?
Bloomington is in USDA Plant Hardiness Zone 6b (average annual extreme minimum temperature −5 to 0°F), based on the 2023 USDA map for ZIP code 47405. See growing zones in Indiana.
More: all Indiana frost dates · Indiana growing zones · UV index today in Bloomington · frost vs. freeze