Frost dates 2026–2027

Frost dates for Cicero, Indiana

Median (50% chance) dates of the last and first 32°F frost, from NOAA 1991–2020 climate normals at Tipton 5 SW, 8.0 mi away (close match).

Last spring frostApr 23
First fall frostOct 17
174 frost-free days
Last spring frostApr 231 year in 10 after May 9
First fall frostOct 171 year in 10 by Oct 3
Growing season174 daysbetween median 32°F dates
Hardiness zoneZone 6a−10 to −5°F average extreme low

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Will it freeze in Cicero in the next 7 nights?

The earliest overnight low at or below 32°F in the available NWS frost forecast is Sat, Nov 7: 30°F (Sat, Nov 7, 6:00 PM EST to Sun, Nov 8, 6:00 AM EST).

Tonight: forecast low 43°F. Above 36°F.

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

5 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 Cicero

The median first fall hard-freeze date (28°F) is October 28, from NOAA’s 1991–2020 Climate Normals at Tipton 5 SW. 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 5 · May 20 Sep 24 · Oct 6 · Oct 20 153 days
32°F freeze Apr 9 · Apr 23 · May 9 Oct 3 · Oct 17 · Nov 1 174 days
28°F hard freeze Mar 28 · Apr 11 · Apr 29 Oct 15 · Oct 28 · Nov 10 198 days
NOAA NCEI U.S. Climate Normals 1991–2020, station USC00128784. How to read these probabilities.

Average high temperature by month

1991–2020 normals at Tipton 5 SW

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 Cicero, IN come from the nearest weather station with freeze statistics in NOAA’s 1991–2020 Climate Normals: Tipton 5 SW (station USC00128784, elevation 890 ft), 8.0 mi from Cicero. 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 Cicero

CityDistanceLast spring frostFirst fall frost
Noblesville, IN 6.2 mi Apr 21 Oct 21
Sheridan, IN 8.7 mi Apr 23 Oct 17
Westfield, IN 8.7 mi Apr 21 Oct 21
Tipton, IN 11 mi Apr 23 Oct 17
Fishers, IN 12 mi Apr 21 Oct 21
Carmel, IN 12 mi Apr 21 Oct 21
Elwood, IN 15 mi Apr 24 Oct 18
Pendleton, IN 16 mi Apr 19 Oct 23
McCordsville, IN 17 mi Apr 18 Oct 26
Zionsville, IN 17 mi Apr 21 Oct 20

Frequently asked questions

When is the last frost in Cicero?

On average, the last spring frost (32°F) in Cicero is around April 23. In about 1 year in 10 it comes after May 9, and in 9 years in 10 it comes after April 9.

When is the first frost in Cicero?

The first fall frost (32°F) usually arrives around October 17. There’s a 10% chance of a freeze by October 3 and a 90% chance by November 1.

Can it frost in Cicero 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 5.

What growing zone is Cicero?

Cicero 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 46034. See growing zones in Indiana.

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