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When to plant in Indiana, PA

Planting dates worked out from Indiana's own frost records, not a generic zone chart.

Safe to plant out
May 25
1 year in 10 has a later frost
Average last frost
May 9
about a 50% chance of a later one
Average first fall frost
Oct 16
1 year in 10 by Oct 3
Frost-free days
159
median, 1991–2020

Station used: Indiana 3 Se · 3.9 km away · station 336 m, town 399 m. How we match towns to stations

This season

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Planting dates for common crops

CropStart indoorsPlant out or sowHarvest from
Tomato Mar 30 – Apr 13 May 25 – Jun 8 Jul 19
Sweet pepper Mar 16 – Mar 30 May 25 – Jun 8 Jul 24
Lettuce (leaf) Mar 7 – Mar 14 Apr 11 – Apr 25 May 21
Peas — Mar 28 – Apr 25 May 22
Bush beans — May 18 – Jun 8 Jul 7
Carrot — Apr 18 – May 30 Jun 17
Beet — Apr 11 – May 23 May 31
Potato — Apr 18 – May 9 Jun 27
Kale Feb 28 – Mar 14 Apr 11 – Apr 25 May 24
Broccoli Feb 28 – Mar 14 Apr 11 – May 2 Jun 10
Cucumber Apr 27 – May 4 May 25 – Jun 8 Jul 14
Summer squash and zucchini Apr 27 – May 4 May 25 – Jun 8 Jul 9
Winter squash Apr 27 – May 4 May 25 – Jun 8 Aug 13
Sweet corn — May 18 – Jun 8 Jul 17
Onion (from sets) — Apr 11 – May 2 Jul 10
Garlic — Oct 2 – Oct 30 (fall) following summer
Spinach — Mar 28 – Apr 25 May 5
Basil Apr 13 – Apr 27 May 25 – Jun 8 Jul 21

Plan all 65 crops for Indiana

Indiana's weather over time

How the growing season has shifted here, year by year, from the station's own records.

Apr 15May 1May 15Jun 1 19501960197019801990200020102020
Each year's last spring frostLong-term trend
See the data as a table
YearLast spring frost
1947May 31
1948May 26
1949Jun 8
1950May 13
1951May 14
1952May 7
1953Apr 24
1954May 23
1955May 18
1956May 25
1957May 7
1958May 21
1959May 9
1960May 2
1961May 30
1962May 10
1963May 24
1964May 29
1965Apr 30
1966Jun 2
1967May 17
1968May 7
1969May 1
1970May 7
1971May 23
1972May 11
1973May 19
1974May 8
1975Apr 27
1976May 13
1977Jun 8
1978May 3
1979May 17
1980May 10
1981May 20
1982May 4
1983May 17
1984May 17
1985May 4
1986May 4
1987May 6
1988May 26
1989May 4
1990May 12
1991Apr 18
1992May 25
1993Apr 28
1994May 28
1995May 8
1996May 14
1997May 23
1998Apr 28
1999Apr 26
2000Apr 27
2001May 31
2002May 22
2003Apr 27
2004May 4
2006May 23
2007Apr 14
2008Apr 30
2009May 20
2010May 11
2011May 6
2012Apr 30
2013May 27
2014May 6
2015May 24
2016May 17
2017May 10
2018May 2
2019Apr 30
2020May 14
2021May 14
2022May 1
2023Apr 28
2024Apr 24
2026May 4

What this means for you: Since 1947, Indiana's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 5 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

Source: daily records from Indiana 3 Se (NOAA GHCN-Daily). Years with too many missing days are left out.

Nearby towns

Chevy Chase HeightsHomer CityClymerBlack LickBlairsvilleNorthern Cambria