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When Is the Last Frost?
What to plant
Hardiness zones
By state
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Montana frost dates: K
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City
Last frost
First frost
Season
Zone
Kalispell
May 31
Sep 10
102 d
5b
Kevin
May 17
Sep 25
131 d
4a
Kila
May 12
Sep 25
136 d
5b
Kinsey
May 8
Sep 30
145 d
4a
Kremlin
May 24
Sep 15
114 d
4a
A
B
C
D
E
F
G
H
I
J
K
L
M
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O
P
R
S
T
U
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Z