Frost Dates for Judith Gap 13 E, MT

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. June 3
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. September 15
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 June 13
First Fall Frost September 9

Hard Freeze (28°F / -2°C)

Last Spring Hard Freeze May 19
First Fall Hard Freeze September 27
46.61°N, -109.47°W © OpenStreetMap

Growing Season

104 Days June 3 to September 15

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 4b

Learn more

Temperature

10° 30° 50° 70° 90°
28°
High: 42°
Avg: 28°
Low: 13°
Jan
28°
High: 43°
Avg: 28°
Low: 12°
Feb
35°
High: 51°
Avg: 35°
Low: 20°
Mar
43°
High: 59°
Avg: 43°
Low: 27°
Apr
52°
High: 68°
Avg: 52°
Low: 36°
May
60°
High: 76°
Avg: 60°
Low: 44°
Jun
67°
High: 85°
Avg: 67°
Low: 49°
Jul
67°
High: 85°
Avg: 67°
Low: 49°
Aug
58°
High: 76°
Avg: 58°
Low: 40°
Sep
46°
High: 62°
Avg: 46°
Low: 29°
Oct
35°
High: 50°
Avg: 35°
Low: 20°
Nov
27°
High: 41°
Avg: 27°
Low: 13°
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.1"
3.5"
3.49"
Jan
2.8"
2.83"
Feb
3.1"
3.15"
Mar
3.7"
3.67"
Apr
4.9"
4.91"
May
6.0"
5.96"
Jun
6.1"
6.09"
Jul
5.2"
5.19"
Aug
5.0"
5.05"
Sep
4.2"
4.16"
Oct
3.0"
2.96"
Nov
1.8"
1.80"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9h10h12h13h15h16h15h14h12h11h9h8h
Jan: 7:37 AM – 4:23 PM · 8h 45m
Feb: 6:58 AM – 5:02 PM · 10h 04m
Mar: 6:12 AM – 5:48 PM · 11h 36m
Apr: 5:20 AM – 6:40 PM · 13h 21m
May: 4:36 AM – 7:24 PM · 14h 49m
Jun: 4:12 AM – 7:48 PM · 15h 37m
Jul: 4:21 AM – 7:39 PM · 15h 17m
Aug: 4:60 AM – 7:00 PM · 14h 00m
Sep: 5:51 AM – 6:09 PM · 12h 19m
Oct: 6:41 AM – 5:19 PM · 10h 38m
Nov: 7:26 AM – 4:34 PM · 9h 08m
Dec: 7:49 AM – 4:11 PM · 8h 23m
Daylight Longest: 15h 39m · Shortest: 8h 22m

Nearby Stations

Ryegate 18 Nnw, MT May 26 - September 18 Judith Gap, MT June 1 - September 15 Lewistown 11 Sse, MT May 31 - September 14 Harlowton, MT May 23 - September 16 Harlowton 11nw, MT May 30 - September 20 Ryegate, MTMay 17 - September 23

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