Frost Dates for Richfield 3 Ssw, WI

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 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 6
First Fall Frost October 10

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze April 19
First Fall Hard Freeze October 27
43.21°N, -88.21°W © OpenStreetMap

Growing Season

169 Days April 30 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 5a

Learn more

Temperature

10° 30° 50° 70° 90°
19°
High: 28°
Avg: 19°
Low: 11°
Jan
23°
High: 32°
Avg: 23°
Low: 13°
Feb
33°
High: 43°
Avg: 33°
Low: 23°
Mar
45°
High: 56°
Avg: 45°
Low: 34°
Apr
57°
High: 68°
Avg: 57°
Low: 45°
May
67°
High: 79°
Avg: 67°
Low: 54°
Jun
72°
High: 83°
Avg: 72°
Low: 60°
Jul
70°
High: 81°
Avg: 70°
Low: 59°
Aug
62°
High: 73°
Avg: 62°
Low: 51°
Sep
50°
High: 60°
Avg: 50°
Low: 40°
Oct
36°
High: 45°
Avg: 36°
Low: 28°
Nov
25°
High: 33°
Avg: 25°
Low: 18°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 5.2"
1.9"
1.93"
Jan
2.2"
2.18"
Feb
3.4"
3.36"
Mar
3.9"
3.90"
Apr
4.2"
4.18"
May
5.2"
5.17"
Jun
4.6"
4.61"
Jul
4.9"
4.92"
Aug
4.5"
4.45"
Sep
3.3"
3.31"
Oct
2.7"
2.70"
Nov
2.6"
2.56"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h14h15h15h14h12h11h9h9h
Jan: 7:26 AM – 4:34 PM · 9h 08m
Feb: 6:51 AM – 5:09 PM · 10h 17m
Mar: 6:11 AM – 5:49 PM · 11h 39m
Apr: 5:24 AM – 6:36 PM · 13h 12m
May: 4:45 AM – 7:15 PM · 14h 29m
Jun: 4:24 AM – 7:36 PM · 15h 11m
Jul: 4:33 AM – 7:27 PM · 14h 54m
Aug: 5:07 AM – 6:53 PM · 13h 47m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 47m
Nov: 7:16 AM – 4:44 PM · 9h 28m
Dec: 7:36 AM – 4:24 PM · 8h 49m
Daylight Longest: 15h 12m · Shortest: 8h 48m

Nearby Stations

Germantown, WIMay 6 - October 8 Jackson, WIApril 30 - October 15 Slinger Wwtp, WIMay 5 - October 5 Brookfield Wwtp, WI April 30 - October 14 West Bend, WIMay 4 - October 11 Hartford Wwtp, WI May 8 - October 3

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