Frost Dates for Argos, IN

Based on data from Plymouth weather station, 9 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. April 25
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 21
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 2
First Fall Frost October 15

Hard Freeze (28°F)

Last Spring Hard Freeze April 14
First Fall Hard Freeze November 1
41.24°N, -86.21°W © OpenStreetMap

Growing Season

179 Days April 25 to October 21

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 6a

Avg. annual minimum: −10 to −5°F (−23 to −21°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°
24°
High: 31°F
Avg: 24°F
Low: 17°F
Jan
27°
High: 35°F
Avg: 27°F
Low: 19°F
Feb
37°
High: 47°F
Avg: 37°F
Low: 28°F
Mar
49°
High: 60°F
Avg: 49°F
Low: 38°F
Apr
60°
High: 71°F
Avg: 60°F
Low: 49°F
May
70°
High: 81°F
Avg: 70°F
Low: 59°F
Jun
73°
High: 84°F
Avg: 73°F
Low: 63°F
Jul
72°
High: 82°F
Avg: 72°F
Low: 61°F
Aug
65°
High: 76°F
Avg: 65°F
Low: 54°F
Sep
53°
High: 63°F
Avg: 53°F
Low: 42°F
Oct
40°
High: 48°F
Avg: 40°F
Low: 32°F
Nov
30°
High: 37°F
Avg: 30°F
Low: 23°F
Dec
32°F
28°F
Avg High Avg Temp Avg Low Light Frost (32°F) Hard Frost (28°F)

Precipitation

0" 2" 4" 6" 6.9"
2.2"
2.22"
Jan
2.5"
2.53"
Feb
3.5"
3.45"
Mar
4.2"
4.18"
Apr
5.3"
5.32"
May
6.4"
6.41"
Jun
6.9"
6.94"
Jul
6.8"
6.82"
Aug
4.8"
4.79"
Sep
4.2"
4.22"
Oct
3.5"
3.47"
Nov
2.8"
2.84"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec9.5h10.5h11.5h13h14.5h15h14.5h13.5h12.5h11h9.5h9h
Jan: 7:20 AM – 4:40 PM · 9h 20m
Feb: 6:48 AM – 5:12 PM · 10h 24m
Mar: 6:10 AM – 5:50 PM · 11h 40m
Apr: 5:26 AM – 6:34 PM · 13h 07m
May: 4:50 AM – 7:10 PM · 14h 19m
Jun: 4:31 AM – 7:29 PM · 14h 58m
Jul: 4:39 AM – 7:21 PM · 14h 42m
Aug: 5:10 AM – 6:50 PM · 13h 40m
Sep: 5:52 AM – 6:08 PM · 12h 16m
Oct: 6:34 AM – 5:26 PM · 10h 52m
Nov: 7:11 AM – 4:49 PM · 9h 38m
Dec: 7:29 AM – 4:31 PM · 9h 02m
Daylight Longest: 14h 59m · Shortest: 9h 01m

Nearby Stations

Lakeville, INMay 1 - October 13 Knox Wwtp, IN April 26 - October 19 Rochester, IN April 23 - October 21 Warsaw, INApril 28 - October 18 Winamac 2sse, IN April 25 - October 18 S Bend, INApril 23 - October 23

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