Frost Dates for Lisle, IL

Based on data from Lisle-Morton Arboretum weather station, 1 miles away

Frost Dates

Last Spring Frost (50%) iA 50% chance that the last spring frost has already passed by this date. Most gardeners use this as their primary planting guide. April 28
First Fall Frost (50%) iA 50% chance that the first fall frost has occurred by this date. Plan to harvest or protect tender plants before this date. October 16
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

30% Probability iOnly a 30% chance of frost remaining by this date. Use these dates for a safer planting window, especially for tender plants sensitive to cold.

Last Spring Frost May 4
First Fall Frost October 11

Hard Freeze (28°F)

Last Spring Hard Freeze April 16
First Fall Hard Freeze October 26
41.80°N, -88.07°W © OpenStreetMap

Growing Season

171 Days April 28 to October 16

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 5b

Avg. annual minimum: −15 to −10°F (−26 to −23°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Dfa Hot-Summer Continental

Hot summers and cold winters with year-round precipitation. Moderate growing season supports warm-season crops like tomatoes, peppers, and corn. Winter protection extends the harvest.

Köppen climate map

Temperature

10° 30° 50° 70° 90°
23°
High: 32°F
Avg: 23°F
Low: 15°F
Jan
27°
High: 35°F
Avg: 27°F
Low: 18°F
Feb
37°
High: 47°F
Avg: 37°F
Low: 26°F
Mar
48°
High: 59°F
Avg: 48°F
Low: 36°F
Apr
59°
High: 71°F
Avg: 59°F
Low: 47°F
May
69°
High: 81°F
Avg: 69°F
Low: 58°F
Jun
73°
High: 84°F
Avg: 73°F
Low: 62°F
Jul
72°
High: 83°F
Avg: 72°F
Low: 60°F
Aug
64°
High: 76°F
Avg: 64°F
Low: 52°F
Sep
52°
High: 63°F
Avg: 52°F
Low: 40°F
Oct
39°
High: 48°F
Avg: 39°F
Low: 30°F
Nov
29°
High: 37°F
Avg: 29°F
Low: 21°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 7.6"
2.8"
2.79"
Jan
2.9"
2.91"
Feb
4.1"
4.13"
Mar
4.5"
4.49"
Apr
5.1"
5.11"
May
5.4"
5.40"
Jun
5.9"
5.89"
Jul
7.6"
7.59"
Aug
7.0"
7.05"
Sep
4.8"
4.79"
Oct
3.4"
3.35"
Nov
2.7"
2.71"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:22 AM – 4:38 PM · 9h 17m
Feb: 6:49 AM – 5:11 PM · 10h 22m
Mar: 6:10 AM – 5:50 PM · 11h 40m
Apr: 5:26 AM – 6:34 PM · 13h 08m
May: 4:49 AM – 7:11 PM · 14h 22m
Jun: 4:29 AM – 7:31 PM · 15h 01m
Jul: 4:37 AM – 7:23 PM · 14h 45m
Aug: 5:09 AM – 6:51 PM · 13h 41m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:35 AM – 5:25 PM · 10h 50m
Nov: 7:12 AM – 4:48 PM · 9h 35m
Dec: 7:31 AM – 4:29 PM · 8h 58m
Daylight Longest: 15h 03m · Shortest: 8h 57m

Nearby Stations

Wheaton 3 Se, IL April 27 - October 17 West Chicago Dupage AP, IL April 25 - October 19 Aurora, ILApril 19 - October 23 Little Red School Hse, IL April 19 - October 22 Romeoville Wfo, IL April 20 - October 22 Chicago Ohare Intl AP, IL April 16 - October 28

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