When to plant in Jasper, AL
Planting dates worked out from Jasper's own frost records, not a generic zone chart.
Safe to plant out
Apr 14
1 year in 10 has a later frost
Average last frost
Apr 2
about a 50% chance of a later one
Average first fall frost
Nov 4
1 year in 10 by Oct 25
Frost-free days
218
median, 1991–2020
Station used: Jasper · 8.9 km away · station 148 m, town 100 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 | Feb 17 – Mar 3 | Apr 14 – Apr 28 | Jun 8 |
| Sweet pepper | Feb 3 – Feb 17 | Apr 14 – Apr 28 | Jun 13 |
| Lettuce (leaf) | Jan 29 – Feb 5 | Mar 5 – Mar 19 | Apr 14 |
| Peas | — | Feb 19 – Mar 19 | Apr 15 |
| Bush beans | — | Apr 7 – Apr 28 | May 27 |
| Carrot | — | Mar 12 – Apr 23 | May 11 |
| Beet | — | Mar 5 – Apr 16 | Apr 24 |
| Potato | — | Mar 12 – Apr 2 | May 21 |
| Kale | Jan 22 – Feb 5 | Mar 5 – Mar 19 | Apr 17 |
| Broccoli | Jan 22 – Feb 5 | Mar 5 – Mar 26 | May 4 |
| Cucumber | Mar 17 – Mar 24 | Apr 14 – Apr 28 | Jun 3 |
| Summer squash and zucchini | Mar 17 – Mar 24 | Apr 14 – Apr 28 | May 29 |
| Winter squash | Mar 17 – Mar 24 | Apr 14 – Apr 28 | Jul 3 |
| Sweet corn | — | Apr 7 – Apr 28 | Jun 6 |
| Onion (from sets) | — | Mar 5 – Mar 26 | Jun 3 |
| Garlic | — | Oct 21 – Nov 18 (fall) | following summer |
| Spinach | — | Feb 19 – Mar 19 | Mar 29 |
| Basil | Mar 3 – Mar 17 | Apr 14 – Apr 28 | Jun 10 |
Jasper'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 |
|---|---|
| 1961 | Apr 18 |
| 1962 | Apr 18 |
| 1963 | Apr 15 |
| 1964 | Apr 10 |
| 1965 | Mar 22 |
| 1966 | Apr 11 |
| 1967 | Mar 23 |
| 1968 | Apr 6 |
| 1969 | Mar 31 |
| 1970 | Apr 8 |
| 1971 | May 4 |
| 1972 | Apr 5 |
| 1973 | Apr 12 |
| 1974 | Apr 10 |
| 1975 | Apr 14 |
| 1976 | Apr 10 |
| 1977 | Apr 6 |
| 1978 | Apr 22 |
| 1979 | Apr 10 |
| 1980 | Apr 1 |
| 1981 | Mar 26 |
| 1991 | Apr 1 |
| 1992 | Apr 4 |
| 1993 | Apr 23 |
| 1994 | Apr 9 |
| 1995 | Mar 12 |
| 1998 | Mar 23 |
| 2000 | Apr 10 |
| 2001 | Mar 28 |
| 2002 | Mar 28 |
| 2003 | Apr 1 |
| 2004 | Apr 6 |
| 2006 | Mar 27 |
| 2007 | Apr 9 |
| 2008 | Apr 17 |
| 2009 | Apr 9 |
| 2010 | Mar 9 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1961 | 179 |
| 1962 | 188 |
| 1963 | 197 |
| 1964 | 192 |
| 1965 | 216 |
| 1966 | 200 |
| 1967 | 190 |
| 1968 | 202 |
| 1969 | 216 |
| 1970 | 205 |
| 1971 | 183 |
| 1972 | 217 |
| 1973 | 211 |
| 1974 | 175 |
| 1975 | 213 |
| 1976 | 193 |
| 1977 | 190 |
| 1978 | 169 |
| 1979 | 207 |
| 1980 | 194 |
| 1981 | 207 |
| 1991 | 189 |
| 1992 | 216 |
| 1993 | 188 |
| 1994 | 207 |
| 1995 | 236 |
| 2001 | 213 |
| 2002 | 230 |
| 2003 | 226 |
| 2004 | 233 |
| 2006 | 220 |
| 2007 | 208 |
| 2008 | 193 |
| 2009 | 230 |
| 2010 | 234 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1961 | 21.0 °C |
| 1962 | 22.8 °C |
| 1963 | 22.5 °C |
| 1964 | 23.2 °C |
| 1965 | 23.1 °C |
| 1966 | 22.1 °C |
| 1967 | 21.3 °C |
| 1968 | 22.2 °C |
| 1969 | 22.2 °C |
| 1970 | 22.3 °C |
| 1971 | 21.5 °C |
| 1972 | 21.7 °C |
| 1973 | 21.5 °C |
| 1974 | 20.6 °C |
| 1975 | 21.4 °C |
| 1976 | 20.5 °C |
| 1977 | 23.2 °C |
| 1978 | 23.0 °C |
| 1979 | 21.7 °C |
| 1980 | 23.6 °C |
| 1981 | 22.4 °C |
| 1982 | 22.0 °C |
| 1990 | 22.3 °C |
| 1991 | 22.9 °C |
| 1992 | 21.2 °C |
| 1993 | 22.1 °C |
| 1994 | 21.6 °C |
| 1995 | 22.8 °C |
| 1997 | 21.8 °C |
| 1998 | 23.8 °C |
| 2001 | 22.6 °C |
| 2002 | 23.4 °C |
| 2003 | 22.3 °C |
| 2004 | 22.4 °C |
| 2006 | 23.3 °C |
| 2007 | 23.3 °C |
| 2008 | 22.8 °C |
| 2009 | 22.4 °C |
| 2010 | 24.3 °C |
What this means for you: Since 1961, Jasper's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 6 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Jasper (NOAA GHCN-Daily). Years with too many missing days are left out.