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When Is the Last Frost?
What to plant
Hardiness zones
By state
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North Dakota frost dates: O
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Ad
City
Last frost
First frost
Season
Zone
Oakes
May 8
Sep 28
143 d
4a
Oberon
May 12
Sep 29
140 d
4a
Oriska
May 13
Sep 26
136 d
4a
Osnabrock
May 17
Sep 26
132 d
3b
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
R
S
T
U
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