When to plant in Springfield, MN
Planting dates worked out from Springfield's own frost records, not a generic zone chart.
Safe to plant out
May 13
1 year in 10 has a later frost
Average last frost
Apr 30
about a 50% chance of a later one
Average first fall frost
Sep 28
1 year in 10 by Sep 16
Frost-free days
151
median, 1991–2020
Station used: Springfield 1 Nw · 1.2 km away · station 325 m, town 311 m. How we match towns to stations
This season
Plan your garden.
Planting dates for common crops
| Crop | Start indoors | Plant out or sow | Harvest from |
|---|---|---|---|
| Tomato | Mar 18 – Apr 1 | May 13 – May 27 | Jul 7 |
| Sweet pepper | Mar 4 – Mar 18 | May 13 – May 27 | Jul 12 |
| Lettuce (leaf) | Mar 7 – Mar 14 | Apr 11 – Apr 25 | May 21 |
| Peas | — | Apr 11 – May 9 | Jun 5 |
| Bush beans | — | May 6 – May 27 | Jun 25 |
| Carrot | — | Apr 21 – Jun 2 | Jun 20 |
| Beet | — | Apr 21 – Jun 2 | Jun 10 |
| Potato | — | Apr 21 – May 12 | Jun 30 |
| Kale | Mar 7 – Mar 21 | Apr 18 – May 2 | May 31 |
| Broccoli | Feb 28 – Mar 14 | Apr 11 – May 2 | Jun 10 |
| Cucumber | Apr 15 – Apr 22 | May 13 – May 27 | Jul 2 |
| Summer squash and zucchini | Apr 15 – Apr 22 | May 13 – May 27 | Jun 27 |
| Winter squash | Apr 15 – Apr 22 | May 13 – May 27 | Aug 1 |
| Sweet corn | — | May 6 – May 27 | Jul 5 |
| Onion (from sets) | — | Apr 11 – May 2 | Jul 10 |
| Garlic | — | Sep 14 – Oct 12 (fall) | following summer |
| Spinach | — | Apr 11 – May 9 | May 19 |
| Basil | Apr 1 – Apr 15 | May 13 – May 27 | Jul 9 |
Springfield's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's last spring frostLong-term trend
See the data as a table
| Year | Last spring frost |
|---|---|
| 1938 | May 8 |
| 1939 | Apr 22 |
| 1940 | May 3 |
| 1941 | Apr 24 |
| 1942 | May 3 |
| 1943 | May 13 |
| 1944 | May 6 |
| 1948 | Apr 11 |
| 1949 | May 24 |
| 1950 | May 6 |
| 1951 | Apr 23 |
| 1952 | Apr 16 |
| 1953 | May 13 |
| 1954 | May 7 |
| 1955 | Apr 7 |
| 1956 | May 4 |
| 1957 | May 11 |
| 1958 | May 6 |
| 1959 | Apr 28 |
| 1960 | May 8 |
| 1961 | May 3 |
| 1962 | Apr 19 |
| 1963 | May 23 |
| 1964 | Apr 13 |
| 1965 | Apr 28 |
| 1966 | May 11 |
| 1967 | May 20 |
| 1968 | May 18 |
| 1969 | May 12 |
| 1970 | May 2 |
| 1971 | May 12 |
| 1972 | Apr 25 |
| 1973 | May 15 |
| 1974 | May 7 |
| 1975 | Apr 21 |
| 1976 | May 8 |
| 1977 | Apr 8 |
| 1978 | May 2 |
| 1979 | May 12 |
| 1980 | May 15 |
| 1981 | May 19 |
| 1982 | Apr 30 |
| 1983 | May 16 |
| 1984 | May 1 |
| 1985 | Apr 10 |
| 1986 | May 2 |
| 1987 | Apr 7 |
| 1988 | Apr 28 |
| 1989 | May 7 |
| 1990 | May 10 |
| 1991 | Apr 24 |
| 1992 | May 5 |
| 1993 | May 3 |
| 1994 | May 1 |
| 1995 | Apr 29 |
| 1996 | May 12 |
| 1997 | May 20 |
| 1998 | Apr 30 |
| 1999 | Apr 19 |
| 2000 | Apr 22 |
| 2001 | Apr 24 |
| 2002 | May 3 |
| 2003 | Apr 26 |
| 2004 | May 15 |
| 2005 | May 4 |
| 2006 | Apr 9 |
| 2007 | Apr 18 |
| 2008 | Apr 29 |
| 2009 | Apr 29 |
| 2010 | May 10 |
| 2011 | May 4 |
| 2012 | Apr 21 |
| 2013 | May 13 |
| 2014 | Apr 23 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1938 | 167 |
| 1939 | 156 |
| 1940 | 164 |
| 1941 | 185 |
| 1942 | 143 |
| 1943 | 154 |
| 1944 | 155 |
| 1948 | 181 |
| 1949 | 127 |
| 1950 | 149 |
| 1951 | 154 |
| 1952 | 170 |
| 1953 | 131 |
| 1954 | 151 |
| 1955 | 190 |
| 1956 | 148 |
| 1957 | 151 |
| 1959 | 160 |
| 1960 | 163 |
| 1961 | 144 |
| 1962 | 153 |
| 1963 | 112 |
| 1964 | 175 |
| 1965 | 150 |
| 1966 | 142 |
| 1967 | 130 |
| 1968 | 138 |
| 1969 | 152 |
| 1970 | 159 |
| 1971 | 127 |
| 1972 | 156 |
| 1973 | 127 |
| 1974 | 118 |
| 1975 | 155 |
| 1976 | 137 |
| 1977 | 176 |
| 1978 | 163 |
| 1979 | 146 |
| 1980 | 130 |
| 1981 | 120 |
| 1982 | 168 |
| 1983 | 129 |
| 1984 | 147 |
| 1985 | 168 |
| 1986 | 156 |
| 1987 | 178 |
| 1988 | 145 |
| 1989 | 138 |
| 1990 | 135 |
| 1991 | 147 |
| 1992 | 145 |
| 1993 | 134 |
| 1994 | 176 |
| 1995 | 144 |
| 1996 | 143 |
| 1997 | 123 |
| 1998 | 144 |
| 1999 | 154 |
| 2000 | 154 |
| 2001 | 152 |
| 2002 | 143 |
| 2003 | 151 |
| 2004 | 139 |
| 2005 | 155 |
| 2006 | 163 |
| 2007 | 149 |
| 2008 | 169 |
| 2009 | 162 |
| 2010 | 157 |
| 2011 | 133 |
| 2012 | 154 |
| 2013 | 157 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1938 | 17.6 °C |
| 1939 | 18.2 °C |
| 1940 | 17.3 °C |
| 1941 | 18.8 °C |
| 1942 | 17.0 °C |
| 1943 | 17.1 °C |
| 1944 | 17.4 °C |
| 1948 | 18.4 °C |
| 1949 | 18.4 °C |
| 1950 | 15.5 °C |
| 1951 | 15.4 °C |
| 1952 | 17.8 °C |
| 1953 | 17.1 °C |
| 1954 | 17.0 °C |
| 1955 | 19.5 °C |
| 1956 | 16.7 °C |
| 1957 | 16.9 °C |
| 1959 | 18.1 °C |
| 1960 | 17.2 °C |
| 1961 | 16.3 °C |
| 1962 | 16.9 °C |
| 1963 | 18.2 °C |
| 1964 | 18.1 °C |
| 1965 | 16.1 °C |
| 1966 | 16.6 °C |
| 1967 | 16.0 °C |
| 1968 | 17.0 °C |
| 1969 | 17.2 °C |
| 1970 | 18.0 °C |
| 1971 | 17.1 °C |
| 1972 | 16.7 °C |
| 1973 | 16.5 °C |
| 1974 | 16.1 °C |
| 1975 | 16.2 °C |
| 1976 | 17.6 °C |
| 1977 | 18.2 °C |
| 1978 | 17.1 °C |
| 1979 | 15.7 °C |
| 1980 | 17.4 °C |
| 1981 | 17.2 °C |
| 1982 | 16.2 °C |
| 1983 | 17.2 °C |
| 1984 | 16.4 °C |
| 1985 | 16.7 °C |
| 1986 | 17.0 °C |
| 1987 | 18.6 °C |
| 1988 | 18.7 °C |
| 1989 | 16.9 °C |
| 1990 | 16.9 °C |
| 1991 | 17.7 °C |
| 1992 | 15.0 °C |
| 1993 | 15.1 °C |
| 1994 | 16.7 °C |
| 1995 | 16.2 °C |
| 1996 | 15.5 °C |
| 1997 | 15.9 °C |
| 1998 | 18.0 °C |
| 1999 | 17.1 °C |
| 2000 | 16.2 °C |
| 2001 | 17.0 °C |
| 2002 | 17.0 °C |
| 2003 | 16.5 °C |
| 2004 | 16.0 °C |
| 2005 | 17.7 °C |
| 2006 | 17.5 °C |
| 2007 | 17.3 °C |
| 2008 | 15.8 °C |
| 2009 | 15.5 °C |
| 2010 | 17.5 °C |
| 2011 | 16.6 °C |
| 2012 | 18.0 °C |
| 2013 | 15.6 °C |
| 2014 | 16.3 °C |
What this means for you: Since 1938, Springfield's last spring frost has stayed at about the same time of year. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Springfield 1 Nw (NOAA GHCN-Daily). Years with too many missing days are left out.