When to plant in Logan, UT
Planting dates worked out from Logan'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
Sep 29
1 year in 10 by Sep 15
Frost-free days
146
median, 1991–2020
Station used: Logan Radio Kvnu · 1.8 km away · station 1364 m, town 1382 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 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 30 – Apr 27 | May 24 |
| Bush beans | — | May 18 – Jun 8 | Jul 7 |
| Carrot | — | Apr 18 – May 30 | Jun 17 |
| Beet | — | Apr 17 – May 29 | Jun 6 |
| 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 | — | Sep 15 – Oct 13 (fall) | following summer |
| Spinach | — | Mar 30 – Apr 27 | May 7 |
| Basil | Apr 13 – Apr 27 | May 25 – Jun 8 | Jul 21 |
Logan'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 |
|---|---|
| 1957 | Apr 27 |
| 1958 | Apr 30 |
| 1959 | May 31 |
| 1960 | Jun 21 |
| 1961 | May 6 |
| 1962 | Jun 7 |
| 1964 | May 4 |
| 1965 | May 8 |
| 1966 | May 24 |
| 1967 | May 13 |
| 1968 | May 9 |
| 1969 | Apr 30 |
| 1970 | Jun 1 |
| 1971 | May 19 |
| 1972 | May 21 |
| 1973 | May 2 |
| 1974 | May 19 |
| 1975 | May 27 |
| 1976 | Apr 28 |
| 1977 | May 20 |
| 1978 | Jun 1 |
| 1979 | Jun 1 |
| 1980 | May 17 |
| 1981 | Jun 16 |
| 1985 | May 14 |
| 1986 | May 23 |
| 1987 | May 3 |
| 1988 | May 3 |
| 1989 | May 25 |
| 1990 | May 16 |
| 1991 | May 5 |
| 1992 | Apr 24 |
| 1993 | May 9 |
| 1994 | Apr 30 |
| 1995 | Apr 26 |
| 1996 | May 5 |
| 1997 | May 3 |
| 1998 | Apr 26 |
| 1999 | May 11 |
| 2000 | Jun 1 |
| 2001 | May 7 |
| 2002 | Jun 10 |
| 2003 | May 20 |
| 2005 | Apr 17 |
| 2006 | May 10 |
| 2008 | May 13 |
| 2010 | May 8 |
| 2011 | May 5 |
| 2012 | May 11 |
| 2013 | May 3 |
| 2014 | May 13 |
| 2015 | Apr 27 |
| 2016 | May 11 |
| 2017 | May 18 |
| 2018 | May 1 |
| 2019 | Jun 9 |
| 2020 | May 7 |
| 2021 | May 11 |
| 2022 | May 23 |
| 2023 | Apr 26 |
| 2024 | Jun 18 |
| 2025 | Apr 20 |
| 2026 | May 19 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1957 | 145 |
| 1958 | 147 |
| 1959 | 113 |
| 1960 | 109 |
| 1961 | 138 |
| 1962 | 93 |
| 1964 | 137 |
| 1965 | 131 |
| 1966 | 132 |
| 1967 | 122 |
| 1969 | 155 |
| 1970 | 105 |
| 1971 | 122 |
| 1972 | 122 |
| 1973 | 153 |
| 1974 | 133 |
| 1975 | 114 |
| 1976 | 162 |
| 1977 | 133 |
| 1978 | 108 |
| 1979 | 134 |
| 1980 | 146 |
| 1981 | 119 |
| 1985 | 131 |
| 1986 | 126 |
| 1987 | 136 |
| 1988 | 148 |
| 1989 | 132 |
| 1990 | 143 |
| 1991 | 139 |
| 1992 | 154 |
| 1993 | 127 |
| 1994 | 167 |
| 1995 | 148 |
| 1996 | 140 |
| 1997 | 158 |
| 1998 | 161 |
| 1999 | 138 |
| 2000 | 114 |
| 2001 | 123 |
| 2002 | 113 |
| 2003 | 117 |
| 2005 | 170 |
| 2006 | 130 |
| 2008 | 149 |
| 2010 | 156 |
| 2011 | 156 |
| 2012 | 145 |
| 2013 | 147 |
| 2014 | 123 |
| 2016 | 147 |
| 2017 | 127 |
| 2018 | 163 |
| 2019 | 112 |
| 2020 | 160 |
| 2021 | 141 |
| 2022 | 143 |
| 2023 | 149 |
| 2024 | 122 |
| 2025 | 181 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1957 | 16.2 °C |
| 1958 | 17.6 °C |
| 1959 | 15.9 °C |
| 1960 | 16.9 °C |
| 1961 | 17.1 °C |
| 1962 | 17.0 °C |
| 1963 | 17.7 °C |
| 1965 | 15.3 °C |
| 1966 | 16.7 °C |
| 1967 | 15.7 °C |
| 1968 | 15.3 °C |
| 1969 | 17.5 °C |
| 1970 | 15.6 °C |
| 1971 | 16.0 °C |
| 1972 | 16.5 °C |
| 1973 | 15.9 °C |
| 1974 | 16.3 °C |
| 1975 | 14.3 °C |
| 1976 | 15.8 °C |
| 1977 | 16.1 °C |
| 1978 | 14.9 °C |
| 1979 | 16.4 °C |
| 1980 | 15.5 °C |
| 1981 | 16.4 °C |
| 1985 | 15.9 °C |
| 1986 | 15.5 °C |
| 1987 | 16.5 °C |
| 1988 | 16.6 °C |
| 1989 | 16.7 °C |
| 1990 | 17.2 °C |
| 1991 | 15.4 °C |
| 1992 | 17.1 °C |
| 1993 | 14.5 °C |
| 1994 | 17.6 °C |
| 1995 | 15.3 °C |
| 1996 | 16.0 °C |
| 1997 | 16.1 °C |
| 1998 | 16.1 °C |
| 1999 | 15.4 °C |
| 2000 | 17.1 °C |
| 2001 | 17.1 °C |
| 2002 | 16.6 °C |
| 2003 | 17.0 °C |
| 2005 | 16.0 °C |
| 2006 | 17.0 °C |
| 2008 | 15.4 °C |
| 2010 | 15.6 °C |
| 2011 | 15.9 °C |
| 2012 | 17.9 °C |
| 2013 | 17.3 °C |
| 2014 | 16.4 °C |
| 2015 | 17.2 °C |
| 2017 | 16.7 °C |
| 2018 | 17.2 °C |
| 2019 | 16.1 °C |
| 2020 | 16.5 °C |
| 2021 | 17.4 °C |
| 2022 | 16.3 °C |
| 2023 | 16.1 °C |
| 2025 | 17.4 °C |
| 2026 | 17.3 °C |
What this means for you: Since 1957, Logan's last spring frost has come about 1 day earlier per decade, on average. The frost-free season has grown by about 3 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Logan Radio Kvnu (NOAA GHCN-Daily). Years with too many missing days are left out.