Frost dates 2026–2027

Frost dates for Blair, Nebraska

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Blair, 1.0 mi away (close match).

Last spring frostApr 22
First fall frostOct 17
177 frost-free days
Last spring frostApr 221 year in 10 after May 5
First fall frostOct 171 year in 10 by Sep 30
Growing season177 daysbetween median 32°F dates
Hardiness zoneZone 5b−15 to −10°F average extreme low

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Will it freeze in Blair in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Fri, Nov 6: 31°F (Fri, Nov 6, 6:00 PM CST to Sat, Nov 7, 6:00 AM CST).

Tonight: forecast low 36°F. Frost possible.

NWS forecast period: Thu, Nov 5, 6:00 PM CST to Fri, Nov 6, 6:00 AM CST.

2 of the next 7 nights are forecast at 36°F or colder, cold enough for frost on exposed plants.

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 Blair

The median first fall hard-freeze date (28°F) is October 27, from NOAA’s 1991–2020 Climate Normals at Blair. This is the 50% probability date, not a forecast for this year.

TemperatureLast 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 20 · May 2 · May 14 Sep 21 · Oct 6 · Oct 20 155 days
32°F freeze Apr 9 · Apr 22 · May 5 Sep 30 · Oct 17 · Oct 30 177 days
28°F hard freeze Mar 31 · Apr 12 · Apr 26 Oct 13 · Oct 27 · Nov 8 197 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00250930. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Blair

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 Blair, NE come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Blair (station USC00250930, elevation 1,090 ft), 1.0 mi from Blair. 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 Blair

CityDistanceLast spring frostFirst fall frost
Fremont, NE 19 mi Apr 23 Oct 15
Omaha, NE 20 mi Apr 16 Oct 18
Ralston, NE 24 mi Apr 21 Oct 18
La Vista, NE 25 mi Apr 21 Oct 18
Council Bluffs, IA 25 mi Apr 18 Oct 21
Papillion, NE 27 mi Apr 21 Oct 18
Gretna, NE 29 mi Apr 21 Oct 18
Bellevue, NE 29 mi Apr 17 Oct 19
Wahoo, NE 34 mi Apr 23 Oct 15
Plattsmouth, NE 39 mi Apr 23 Oct 11

Frequently asked questions

When is the last frost in Blair?

On average, the last spring frost (32°F) in Blair is around April 22. In about 1 year in 10 it comes after May 5, and in 9 years in 10 it comes after April 9.

When is the first frost in Blair?

The first fall frost (32°F) usually arrives around October 17. There’s a 10% chance of a freeze by September 30 and a 90% chance by October 30.

Can it frost in Blair 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 May 2.

What growing zone is Blair?

Blair is in USDA Plant Hardiness Zone 5b (average annual extreme minimum temperature −15 to −10°F), based on the 2023 USDA map for ZIP code 68008. See growing zones in Nebraska.

More: all Nebraska frost dates · Nebraska growing zones · frost vs. freeze