Frost Dates for Amherst, WI

Based on data from Waupaca weather station, 13 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 8
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 6
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 13
First Fall Frost September 30

Hard Freeze (28°F)

Last Spring Hard Freeze April 28
First Fall Hard Freeze October 17
44.45°N, -89.28°W © OpenStreetMap

Growing Season

151 Days May 8 to October 6

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 5a

Avg. annual minimum: −20 to −15°F (−29 to −26°C)

Learn more

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

Dfb Warm-Summer Continental

Warm summers and cold, snowy winters. A shorter growing season than hot-summer continental. Hardy vegetables, root crops, and cool-season greens do well. Season extension is valuable.

Köppen climate map

Temperature

0° 30° 60° 90°
16°
High: 25°F
Avg: 16°F
Low: 8°F
Jan
20°
High: 29°F
Avg: 20°F
Low: 10°F
Feb
31°
High: 41°F
Avg: 31°F
Low: 21°F
Mar
44°
High: 55°F
Avg: 44°F
Low: 33°F
Apr
57°
High: 68°F
Avg: 57°F
Low: 45°F
May
66°
High: 77°F
Avg: 66°F
Low: 55°F
Jun
70°
High: 82°F
Avg: 70°F
Low: 59°F
Jul
68°
High: 80°F
Avg: 68°F
Low: 57°F
Aug
60°
High: 72°F
Avg: 60°F
Low: 49°F
Sep
47°
High: 58°F
Avg: 47°F
Low: 37°F
Oct
35°
High: 43°F
Avg: 35°F
Low: 26°F
Nov
22°
High: 30°F
Avg: 22°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" 2" 4" 6" 6.9"
3.1"
3.06"
Jan
2.8"
2.80"
Feb
4.8"
4.84"
Mar
5.6"
5.60"
Apr
6.4"
6.38"
May
6.9"
6.88"
Jun
6.2"
6.23"
Jul
6.0"
5.95"
Aug
5.4"
5.42"
Sep
4.3"
4.34"
Oct
3.7"
3.66"
Nov
3.7"
3.72"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h11.5h13h14.5h15.5h15h14h12.5h10.5h9.5h8.5h
Jan: 7:29 AM – 4:31 PM · 9h 01m
Feb: 6:53 AM – 5:07 PM · 10h 13m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 15m
May: 4:42 AM – 7:18 PM · 14h 35m
Jun: 4:20 AM – 7:40 PM · 15h 19m
Jul: 4:29 AM – 7:31 PM · 15h 01m
Aug: 5:04 AM – 6:56 PM · 13h 51m
Sep: 5:51 AM – 6:09 PM · 12h 17m
Oct: 6:38 AM – 5:22 PM · 10h 44m
Nov: 7:19 AM – 4:41 PM · 9h 21m
Dec: 7:40 AM – 4:20 PM · 8h 40m
Daylight Longest: 15h 21m · Shortest: 8h 39m

Nearby Stations

New London, WIMay 4 - October 6 Clintonville, WIMay 4 - October 6 Berlin Wwtp, WIMay 1 - October 8 Stevens Pt, WIMay 4 - October 7 Hancock Exp Farm, WI May 10 - October 3 Rosholt 9 Nne, WI May 6 - October 5

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