Frost Dates for Earlville, IL

Based on data from Paw Paw 2s weather station, 6 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 27
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 15
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 3
First Fall Frost October 9

Hard Freeze (28°F)

Last Spring Hard Freeze April 15
First Fall Hard Freeze October 25
41.59°N, -88.92°W © OpenStreetMap

Growing Season

171 Days April 27 to October 15

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°
20°
High: 28°F
Avg: 20°F
Low: 12°F
Jan
24°
High: 32°F
Avg: 24°F
Low: 16°F
Feb
35°
High: 45°F
Avg: 35°F
Low: 26°F
Mar
48°
High: 59°F
Avg: 48°F
Low: 36°F
Apr
59°
High: 70°F
Avg: 59°F
Low: 48°F
May
69°
High: 80°F
Avg: 69°F
Low: 58°F
Jun
72°
High: 82°F
Avg: 72°F
Low: 62°F
Jul
70°
High: 80°F
Avg: 70°F
Low: 60°F
Aug
63°
High: 75°F
Avg: 63°F
Low: 52°F
Sep
51°
High: 63°F
Avg: 51°F
Low: 40°F
Oct
37°
High: 46°F
Avg: 37°F
Low: 28°F
Nov
26°
High: 33°F
Avg: 26°F
Low: 18°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" 6.7"
2.6"
2.60"
Jan
3.2"
3.21"
Feb
4.7"
4.68"
Mar
5.1"
5.13"
Apr
6.0"
6.00"
May
6.5"
6.46"
Jun
6.7"
6.68"
Jul
6.7"
6.67"
Aug
6.4"
6.44"
Sep
5.1"
5.12"
Oct
4.3"
4.31"
Nov
3.0"
3.04"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14.5h15h14.5h13.5h12.5h11h9.5h9h
Jan: 7:21 AM – 4:39 PM · 9h 18m
Feb: 6:49 AM – 5:11 PM · 10h 23m
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 21m
Jun: 4:30 AM – 7:30 PM · 15h 00m
Jul: 4:38 AM – 7:22 PM · 14h 44m
Aug: 5:10 AM – 6:50 PM · 13h 41m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:35 AM – 5:25 PM · 10h 51m
Nov: 7:12 AM – 4:48 PM · 9h 36m
Dec: 7:30 AM – 4:30 PM · 8h 59m
Daylight Longest: 15h 02m · Shortest: 8h 58m

Nearby Stations

Compton 1 Nw, IL April 27 - October 12 Shabbona 5 Nne, IL April 28 - October 10 Rochelle, ILApril 26 - October 13 De Kalb, ILApril 24 - October 18 Peru, ILApril 24 - October 18 Ottawa 5sw, IL April 20 - October 22

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