When to plant in Roosevelt, UT
Planting dates worked out from Roosevelt's own frost records, not a generic zone chart.
Safe to plant out
Jun 9
1 year in 10 has a later frost
Average last frost
May 21
about a 50% chance of a later one
Average first fall frost
Sep 23
1 year in 10 by Sep 6
Frost-free days
126
median, 1991–2020
Station used: Roosevelt Radio · 2.9 km away · station 1528 m, town 1553 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 | Apr 14 – Apr 28 | Jun 9 – Jun 23 | Aug 3 |
| Sweet pepper | Mar 31 – Apr 14 | Jun 9 – Jun 23 | Aug 8 |
| Lettuce (leaf) | Mar 19 – Mar 26 | Apr 23 – May 7 | Jun 2 |
| Peas | — | Apr 9 – May 7 | Jun 3 |
| Bush beans | — | Jun 2 – Jun 23 | Jul 22 |
| Carrot | — | Apr 30 – Jun 11 | Jun 29 |
| Beet | — | Apr 23 – Jun 4 | Jun 12 |
| Potato | — | Apr 30 – May 21 | Jul 9 |
| Kale | Mar 12 – Mar 26 | Apr 23 – May 7 | Jun 5 |
| Broccoli | Mar 12 – Mar 26 | Apr 23 – May 14 | Jun 22 |
| Cucumber | May 12 – May 19 | Jun 9 – Jun 23 | Jul 29 |
| Summer squash and zucchini | May 12 – May 19 | Jun 9 – Jun 23 | Jul 24 |
| Winter squash | May 12 – May 19 | Jun 9 – Jun 23 | Aug 28 |
| Sweet corn | — | Jun 2 – Jun 23 | Aug 1 |
| Onion (from sets) | — | Apr 23 – May 14 | Jul 22 |
| Garlic | — | Sep 9 – Oct 7 (fall) | following summer |
| Spinach | — | Apr 9 – May 7 | May 17 |
| Basil | Apr 28 – May 12 | Jun 9 – Jun 23 | Aug 5 |
Roosevelt'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 |
|---|---|
| 1949 | May 1 |
| 1950 | May 27 |
| 1951 | May 13 |
| 1952 | Apr 24 |
| 1953 | May 25 |
| 1954 | May 28 |
| 1955 | Jun 2 |
| 1956 | May 14 |
| 1957 | Apr 28 |
| 1958 | May 8 |
| 1959 | May 21 |
| 1960 | May 25 |
| 1961 | May 14 |
| 1962 | May 18 |
| 1963 | May 12 |
| 1964 | May 9 |
| 1965 | May 10 |
| 1966 | May 2 |
| 1967 | May 15 |
| 1968 | May 17 |
| 1969 | Apr 29 |
| 1970 | May 15 |
| 1971 | May 19 |
| 1972 | May 12 |
| 1973 | May 27 |
| 1974 | May 20 |
| 1975 | May 6 |
| 1976 | Jun 14 |
| 1977 | May 21 |
| 1978 | May 5 |
| 1979 | Jun 9 |
| 1980 | May 26 |
| 1981 | May 13 |
| 1982 | May 31 |
| 1983 | May 15 |
| 1984 | May 8 |
| 1985 | May 13 |
| 1987 | May 3 |
| 1988 | May 9 |
| 1989 | May 26 |
| 1990 | May 25 |
| 1991 | May 20 |
| 1992 | May 11 |
| 1993 | May 10 |
| 1994 | May 20 |
| 1995 | May 14 |
| 1996 | May 4 |
| 1997 | May 8 |
| 1999 | May 17 |
| 2000 | May 14 |
| 2001 | Jun 14 |
| 2002 | Jun 10 |
| 2003 | May 11 |
| 2004 | May 31 |
| 2006 | May 29 |
| 2007 | May 24 |
| 2008 | Jun 13 |
| 2010 | May 30 |
| 2011 | May 31 |
| 2012 | May 13 |
| 2013 | May 4 |
| 2014 | May 15 |
| 2015 | May 11 |
| 2016 | May 12 |
| 2017 | May 20 |
| 2018 | Apr 27 |
| 2019 | Jun 9 |
| 2020 | Jun 9 |
| 2021 | May 22 |
| 2022 | May 30 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1950 | 123 |
| 1951 | 130 |
| 1952 | 165 |
| 1953 | 130 |
| 1954 | 124 |
| 1955 | 116 |
| 1956 | 131 |
| 1957 | 145 |
| 1958 | 139 |
| 1959 | 129 |
| 1960 | 139 |
| 1961 | 132 |
| 1963 | 168 |
| 1964 | 140 |
| 1965 | 128 |
| 1966 | 154 |
| 1967 | 120 |
| 1968 | 122 |
| 1969 | 157 |
| 1970 | 122 |
| 1971 | 121 |
| 1972 | 141 |
| 1973 | 121 |
| 1974 | 115 |
| 1975 | 137 |
| 1976 | 112 |
| 1977 | 125 |
| 1978 | 136 |
| 1979 | 122 |
| 1980 | 143 |
| 1981 | 153 |
| 1982 | 123 |
| 1983 | 127 |
| 1984 | 140 |
| 1987 | 138 |
| 1988 | 127 |
| 1989 | 109 |
| 1990 | 132 |
| 1991 | 124 |
| 1992 | 106 |
| 1993 | 126 |
| 1994 | 124 |
| 1996 | 136 |
| 1997 | 153 |
| 1999 | 132 |
| 2000 | 145 |
| 2001 | 86 |
| 2002 | 120 |
| 2003 | 125 |
| 2004 | 88 |
| 2006 | 110 |
| 2007 | 123 |
| 2008 | 101 |
| 2010 | 99 |
| 2011 | 128 |
| 2012 | 143 |
| 2013 | 146 |
| 2014 | 139 |
| 2015 | 154 |
| 2016 | 146 |
| 2017 | 127 |
| 2018 | 146 |
| 2019 | 104 |
| 2020 | 110 |
| 2021 | 122 |
| 2022 | 134 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1950 | 16.1 °C |
| 1951 | 16.8 °C |
| 1952 | 17.5 °C |
| 1953 | 16.6 °C |
| 1954 | 18.2 °C |
| 1956 | 17.8 °C |
| 1957 | 16.5 °C |
| 1958 | 17.6 °C |
| 1959 | 17.5 °C |
| 1960 | 18.1 °C |
| 1961 | 17.5 °C |
| 1963 | 17.5 °C |
| 1964 | 16.8 °C |
| 1965 | 15.3 °C |
| 1966 | 17.7 °C |
| 1967 | 16.9 °C |
| 1968 | 15.9 °C |
| 1969 | 18.2 °C |
| 1970 | 16.5 °C |
| 1971 | 16.7 °C |
| 1972 | 17.1 °C |
| 1973 | 16.6 °C |
| 1974 | 17.6 °C |
| 1975 | 15.8 °C |
| 1976 | 17.5 °C |
| 1977 | 18.1 °C |
| 1978 | 17.1 °C |
| 1979 | 17.4 °C |
| 1980 | 17.2 °C |
| 1981 | 18.2 °C |
| 1982 | 16.6 °C |
| 1983 | 16.5 °C |
| 1984 | 17.6 °C |
| 1985 | 18.7 °C |
| 1987 | 16.8 °C |
| 1988 | 17.0 °C |
| 1989 | 17.2 °C |
| 1990 | 17.8 °C |
| 1991 | 16.4 °C |
| 1992 | 17.3 °C |
| 1993 | 15.7 °C |
| 1994 | 18.0 °C |
| 1995 | 15.8 °C |
| 1996 | 17.2 °C |
| 1997 | 16.7 °C |
| 1998 | 17.1 °C |
| 1999 | 16.4 °C |
| 2000 | 18.2 °C |
| 2001 | 17.8 °C |
| 2002 | 17.6 °C |
| 2003 | 17.6 °C |
| 2004 | 16.8 °C |
| 2006 | 17.2 °C |
| 2007 | 17.8 °C |
| 2008 | 16.1 °C |
| 2010 | 16.3 °C |
| 2011 | 16.1 °C |
| 2012 | 18.1 °C |
| 2013 | 17.4 °C |
| 2014 | 17.4 °C |
| 2015 | 18.0 °C |
| 2016 | 17.8 °C |
| 2017 | 17.2 °C |
| 2018 | 17.7 °C |
| 2019 | 16.8 °C |
| 2020 | 17.4 °C |
| 2021 | 17.7 °C |
| 2022 | 17.6 °C |
What this means for you: Since 1949, Roosevelt's last spring frost has come about 1 day later per decade, on average. The frost-free season has shrunk 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 Roosevelt Radio (NOAA GHCN-Daily). Years with too many missing days are left out.