First and last frost dates for US locationsNOAA climate normals · 1991–2020
USFrostDates

First and last frost dates in South Dakota

Compare median spring and fall freeze dates for 45 locations in South Dakota. Open a city guide for station details and risk levels.

Median freeze dates for cities in South Dakota
LocationLast spring freezeFirst fall freezeDays betweenGuide
Belle FourcheMay 10September 30143 days
BeresfordMay 2October 1152 days
BlackhawkMay 10October 5148 days
Box ElderMay 12October 1142 days
BrittonMay 13September 26136 days
CantonMay 2October 2153 days
ChamberlainMay 1October 7159 days
ClarkMay 5October 5153 days
CusterMay 18September 28133 days
DeadwoodMay 24September 25124 days
Dell RapidsMay 1October 4156 days
FlandreauMay 5October 1149 days
Fort ThompsonMay 6October 5152 days
GettysburgMay 7October 2148 days
GregoryMay 6October 3150 days
Hot SpringsMay 16September 27134 days
HuronMay 6October 2149 days
LeadMay 18September 29134 days
LemmonMay 10September 30143 days
MadisonMay 5September 30148 days
MartinMay 13October 2142 days
MilbankMay 5October 2150 days
MillerMay 3October 3153 days
MissionMay 9October 1145 days
MitchellApril 27October 11167 days
MobridgeMay 5October 4152 days
North SpearfishMay 12October 2143 days
OglalaMay 7October 4150 days
Pine RidgeMay 16September 27134 days
PorcupineMay 9October 4148 days
Rapid CityMay 3October 8158 days
RedfieldMay 8October 1146 days
RosebudMay 9October 1145 days
SalemMay 7September 29145 days
Sioux FallsMay 1October 6158 days
SissetonMay 4October 3152 days
SpringfieldMay 1October 7159 days
SturgisMay 8October 3148 days
SummersetMay 10October 5148 days
TyndallMay 1October 7159 days
VermillionMay 3October 3153 days
WagnerApril 29October 9163 days
WebsterMay 4October 6155 days
WinnerMay 1October 9161 days
YanktonApril 27October 11167 days

Median dates at nearby stations, using a 32°F (0°C) threshold. The interval is calculated from the two median dates, not a guarantee of frost-free weather. Read the methodology.