When to plant in Las Animas, CO

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

Safe to plant out
May 12
1 year in 10 has a later frost
Average last frost
Apr 29
about a 50% chance of a later one
Average first fall frost
Oct 10
1 year in 10 by Sep 29
Frost-free days
166
median, 1991–2020

Station used: Las Animas · 0.7 km away · station 1186 m, town 1188 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 17 – Mar 31 May 12 – May 26 Jul 6
Sweet pepper Mar 3 – Mar 17 May 12 – May 26 Jul 11
Lettuce (leaf) Feb 25 – Mar 4 Apr 1 – Apr 15 May 11
Peas — Mar 18 – Apr 15 May 12
Bush beans — May 5 – May 26 Jun 24
Carrot — Apr 8 – May 20 Jun 7
Beet — Apr 1 – May 13 May 21
Potato — Apr 8 – Apr 29 Jun 17
Kale Feb 18 – Mar 4 Apr 1 – Apr 15 May 14
Broccoli Feb 18 – Mar 4 Apr 1 – Apr 22 May 31
Cucumber Apr 14 – Apr 21 May 12 – May 26 Jul 1
Summer squash and zucchini Apr 14 – Apr 21 May 12 – May 26 Jun 26
Winter squash Apr 14 – Apr 21 May 12 – May 26 Jul 31
Sweet corn — May 5 – May 26 Jul 4
Onion (from sets) — Apr 1 – Apr 22 Jun 30
Garlic — Sep 26 – Oct 24 (fall) following summer
Spinach — Mar 18 – Apr 15 Apr 25
Basil Mar 31 – Apr 14 May 12 – May 26 Jul 8

Plan all 65 crops for Las Animas

Las Animas's weather over time

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

Apr 1May 1Jun 1Jul 1 1900191019201930194019501960197019801990200020102020
Each year's last spring frostLong-term trend
See the data as a table
YearLast spring frost
1893May 15
1894May 2
1895May 19
1896May 12
1897Apr 22
1898May 11
1899May 1
1900Apr 17
1901Apr 18
1902Apr 24
1903May 1
1904May 9
1905Apr 21
1906Apr 28
1907May 27
1908May 7
1909May 6
1910May 17
1911May 11
1912Jul 5
1913Apr 23
1914Apr 25
1915Jun 23
1916May 15
1917May 10
1918May 11
1919Jun 1
1920Apr 29
1921May 4
1922May 15
1923May 15
1924May 28
1925May 1
1926Apr 25
1927May 10
1928Apr 24
1929May 23
1931May 21
1932May 1
1933Apr 21
1934Mar 23
1936Apr 30
1937Apr 27
1938May 7
1939Apr 22
1940May 1
1941Apr 23
1942May 15
1943May 10
1944May 5
1945Apr 24
1946May 12
1947May 29
1948May 6
1949Apr 16
1950Apr 29
1951May 3
1952Apr 23
1953May 14
1954May 3
1955Apr 28
1956Apr 29
1957Apr 14
1958Apr 29
1959Apr 23
1960May 1
1961Apr 27
1962May 1
1963Apr 30
1966May 13
1967May 2
1968Apr 24
1969Apr 28
1970May 2
1971May 13
1972May 1
1973Apr 27
1974Apr 16
1975Apr 29
1976Apr 25
1977Apr 22
1978May 8
1979May 11
1980Apr 18
1981May 10
1982Apr 22
1983May 16
1985Apr 27
1987Apr 22
1988Apr 12
1989May 5
1990May 4
1991May 1
1992Apr 24
1993May 2
1994Apr 29
1995Apr 23
1996Apr 30
1997Apr 27
1998Apr 19
1999Apr 17
2000May 13
2001Apr 18
2002Apr 22
2003May 11
2004Apr 23
2005May 12
2006Apr 26
2007Apr 26
2008May 11
2009Apr 13
2010May 14
2011May 3
2012Apr 5
2013May 5
2014Apr 15
2015May 12
2016May 3
2017May 4
2018Apr 27
2019May 24
2020Apr 20
2021May 6
2022Apr 18
2023Apr 27
2024Apr 21
2025Apr 21
2026May 7

What this means for you: Since 1893, Las Animas's last spring frost has come about 1 day earlier per decade, on average. The frost-free season has grown by about 2 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.

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

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