Frost Dates for Darlington, WI

Based on data from Darlington Wwtp 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. May 3
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 4
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 10
First Fall Frost September 28

Hard Freeze (28°F)

Last Spring Hard Freeze April 23
First Fall Hard Freeze October 16
42.68°N, -90.12°W © OpenStreetMap

Growing Season

154 Days May 3 to October 4

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 4b

Avg. annual minimum: −25 to −20°F (−32 to −29°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

0° 30° 60° 90°
18°
High: 27°F
Avg: 18°F
Low: 8°F
Jan
22°
High: 32°F
Avg: 22°F
Low: 12°F
Feb
34°
High: 44°F
Avg: 34°F
Low: 23°F
Mar
46°
High: 58°F
Avg: 46°F
Low: 35°F
Apr
58°
High: 69°F
Avg: 58°F
Low: 46°F
May
68°
High: 79°F
Avg: 68°F
Low: 57°F
Jun
71°
High: 82°F
Avg: 71°F
Low: 60°F
Jul
69°
High: 81°F
Avg: 69°F
Low: 58°F
Aug
61°
High: 74°F
Avg: 61°F
Low: 48°F
Sep
49°
High: 61°F
Avg: 49°F
Low: 37°F
Oct
36°
High: 46°F
Avg: 36°F
Low: 26°F
Nov
24°
High: 33°F
Avg: 24°F
Low: 15°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 3" 6" 9" 10.3"
4.2"
4.24"
Jan
4.3"
4.33"
Feb
6.7"
6.67"
Mar
7.8"
7.84"
Apr
8.7"
8.68"
May
8.1"
8.14"
Jun
9.2"
9.24"
Jul
10.3"
10.29"
Aug
10.0"
9.97"
Sep
7.2"
7.20"
Oct
5.7"
5.69"
Nov
4.9"
4.93"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15h15h13.5h12.5h11h9.5h9h
Jan: 7:24 AM – 4:36 PM · 9h 12m
Feb: 6:50 AM – 5:10 PM · 10h 19m
Mar: 6:10 AM – 5:50 PM · 11h 39m
Apr: 5:25 AM – 6:35 PM · 13h 10m
May: 4:47 AM – 7:13 PM · 14h 26m
Jun: 4:26 AM – 7:34 PM · 15h 07m
Jul: 4:35 AM – 7:25 PM · 14h 51m
Aug: 5:08 AM – 6:52 PM · 13h 45m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:36 AM – 5:24 PM · 10h 48m
Nov: 7:15 AM – 4:45 PM · 9h 31m
Dec: 7:34 AM – 4:26 PM · 8h 52m
Daylight Longest: 15h 09m · Shortest: 8h 51m

Nearby Stations

Platteville, WI April 30 - October 13 Dodgeville Wwtp, WI May 3 - October 7 Stockton 3 Nne, IL April 27 - October 9 Monroe Wwtp, WI April 27 - October 14 Galena, ILApril 26 - October 15 Elizabeth, ILMay 1 - October 9

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