Frost Dates for Gurnee, IL

Based on data from Waukegan weather station, 2 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 30
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 19
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 12

Hard Freeze (28°F)

Last Spring Hard Freeze April 20
First Fall Hard Freeze October 30
42.37°N, -87.90°W © OpenStreetMap

Growing Season

172 Days April 30 to October 19

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: 30°F
Avg: 23°F
Low: 16°F
Jan
26°
High: 34°F
Avg: 26°F
Low: 18°F
Feb
36°
High: 44°F
Avg: 36°F
Low: 27°F
Mar
45°
High: 55°F
Avg: 45°F
Low: 35°F
Apr
57°
High: 67°F
Avg: 57°F
Low: 47°F
May
67°
High: 76°F
Avg: 67°F
Low: 57°F
Jun
72°
High: 82°F
Avg: 72°F
Low: 63°F
Jul
71°
High: 80°F
Avg: 71°F
Low: 62°F
Aug
64°
High: 74°F
Avg: 64°F
Low: 54°F
Sep
52°
High: 61°F
Avg: 52°F
Low: 43°F
Oct
40°
High: 48°F
Avg: 40°F
Low: 31°F
Nov
29°
High: 36°F
Avg: 29°F
Low: 22°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.0"
2.5"
2.48"
Jan
2.0"
2.01"
Feb
2.9"
2.92"
Mar
4.4"
4.43"
Apr
5.0"
4.96"
May
4.7"
4.65"
Jun
3.9"
3.85"
Jul
3.1"
3.07"
Aug
3.0"
2.95"
Sep
2.9"
2.88"
Oct
2.7"
2.74"
Nov
2.8"
2.76"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:23 AM – 4:37 PM · 9h 14m
Feb: 6:50 AM – 5:10 PM · 10h 21m
Mar: 6:10 AM – 5:50 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 10m
May: 4:48 AM – 7:12 PM · 14h 25m
Jun: 4:27 AM – 7:33 PM · 15h 05m
Jul: 4:36 AM – 7:24 PM · 14h 48m
Aug: 5:08 AM – 6:52 PM · 13h 43m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:35 AM – 5:25 PM · 10h 49m
Nov: 7:14 AM – 4:46 PM · 9h 32m
Dec: 7:33 AM – 4:27 PM · 8h 55m
Daylight Longest: 15h 06m · Shortest: 8h 54m

Nearby Stations

Chicago Waukegan Rgnl AP, IL April 30 - October 21 Lake Villa 2ne, IL April 24 - October 23 Mundelein 4 Wsw, IL April 29 - October 20 Antioch, ILApril 23 - October 21 Kenosha, WIApril 19 - October 26 Chicago Botanic Garden, IL April 26 - October 21

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