Frost Dates for Chamberlain, SD

Based on data from Chamberlain Muni AP weather station, 3 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 1
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 7
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 1

Hard Freeze (28°F)

Last Spring Hard Freeze April 21
First Fall Hard Freeze October 16
43.81°N, -99.33°W © OpenStreetMap

Growing Season

159 Days May 1 to October 7

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.

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°
21°
High: 31°F
Avg: 21°F
Low: 11°F
Jan
25°
High: 35°F
Avg: 25°F
Low: 14°F
Feb
36°
High: 47°F
Avg: 36°F
Low: 25°F
Mar
47°
High: 59°F
Avg: 47°F
Low: 35°F
Apr
58°
High: 70°F
Avg: 58°F
Low: 47°F
May
69°
High: 81°F
Avg: 69°F
Low: 58°F
Jun
75°
High: 88°F
Avg: 75°F
Low: 63°F
Jul
73°
High: 86°F
Avg: 73°F
Low: 61°F
Aug
64°
High: 77°F
Avg: 64°F
Low: 51°F
Sep
50°
High: 62°F
Avg: 50°F
Low: 38°F
Oct
36°
High: 46°F
Avg: 36°F
Low: 25°F
Nov
24°
High: 34°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" 1" 2" 3" 3.2"
0.9"
0.93"
Jan
0.8"
0.84"
Feb
1.3"
1.25"
Mar
2.5"
2.49"
Apr
2.8"
2.83"
May
3.2"
3.24"
Jun
2.3"
2.26"
Jul
2.6"
2.61"
Aug
2.5"
2.54"
Sep
1.5"
1.50"
Oct
0.9"
0.90"
Nov
0.9"
0.93"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10.5h11.5h13h14.5h15.5h15h14h12.5h11h9.5h8.5h
Jan: 7:28 AM – 4:32 PM · 9h 05m
Feb: 6:52 AM – 5:08 PM · 10h 15m
Mar: 6:11 AM – 5:49 PM · 11h 38m
Apr: 5:23 AM – 6:37 PM · 13h 13m
May: 4:44 AM – 7:16 PM · 14h 32m
Jun: 4:22 AM – 7:38 PM · 15h 15m
Jul: 4:31 AM – 7:29 PM · 14h 58m
Aug: 5:06 AM – 6:54 PM · 13h 49m
Sep: 5:52 AM – 6:08 PM · 12h 17m
Oct: 6:37 AM – 5:23 PM · 10h 45m
Nov: 7:18 AM – 4:42 PM · 9h 25m
Dec: 7:38 AM – 4:22 PM · 8h 45m
Daylight Longest: 15h 16m · Shortest: 8h 44m

Nearby Stations

Chamberlain 5 S, SD May 3 - October 7 Lake Sharpe Prj, SD May 6 - October 5 Academy 2ne, SD April 30 - October 8 Gann Valley 4nw, SD May 6 - October 1 Gann Valley 3 Nne, SD May 7 - October 1 Kennebec, SDMay 12 - September 28

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