When to plant in Bowden, AB
Planting dates worked out from Bowden's own frost records, not a generic zone chart.
Safe to plant out
May 29
1 year in 10 has a later frost
Average last frost
May 18
about a 50% chance of a later one
Average first fall frost
Sep 18
1 year in 10 by Sep 3
Frost-free days
124
median, 1991–2020
Station used: Olds · 16.8 km away · station 1040 m, town 988 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 10 – Apr 24 | Jun 5 – Jun 19 | Jul 30 |
| Sweet pepper | Mar 27 – Apr 10 | Jun 5 – Jun 19 | Aug 4 |
| Lettuce (leaf) | Mar 24 – Mar 31 | Apr 28 – May 12 | Jun 7 |
| Peas | — | Apr 28 – May 26 | Jun 22 |
| Bush beans | — | May 26 – Jun 16 | Jul 15 |
| Carrot | — | May 8 – Jun 19 | Jul 7 |
| Beet | — | May 8 – Jun 19 | Jun 27 |
| Potato | — | May 8 – May 29 | Jul 17 |
| Kale | Mar 24 – Apr 7 | May 5 – May 19 | Jun 17 |
| Broccoli | Mar 17 – Mar 31 | Apr 28 – May 19 | Jun 27 |
| Cucumber | May 8 – May 15 | Jun 5 – Jun 19 | Jul 25 |
| Summer squash and zucchini | May 8 – May 15 | Jun 5 – Jun 19 | Jul 20 |
| Winter squash | May 8 – May 15 | Jun 5 – Jun 19 | Aug 24 |
| Sweet corn | — | May 26 – Jun 16 | Jul 25 |
| Onion (from sets) | — | Apr 28 – May 19 | Jul 27 |
| Garlic | — | Sep 4 – Oct 2 (fall) | following summer |
| Spinach | — | Apr 28 – May 26 | Jun 5 |
| Basil | Apr 24 – May 8 | Jun 5 – Jun 19 | Aug 1 |
Bowden'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 |
|---|---|
| 1916 | Jun 10 |
| 1918 | Jun 4 |
| 1920 | Jun 12 |
| 1921 | Jul 2 |
| 1922 | Jun 6 |
| 1923 | May 28 |
| 1924 | Jun 9 |
| 1925 | May 24 |
| 1926 | Jun 10 |
| 1927 | May 31 |
| 1928 | May 31 |
| 1929 | Jun 19 |
| 1930 | May 25 |
| 1931 | Jun 3 |
| 1932 | Jun 4 |
| 1933 | Jun 10 |
| 1934 | Jun 3 |
| 1935 | May 28 |
| 1936 | Jun 4 |
| 1937 | May 30 |
| 1938 | May 15 |
| 1939 | Jun 1 |
| 1940 | May 4 |
| 1941 | May 29 |
| 1942 | May 30 |
| 1943 | Jun 5 |
| 1944 | May 24 |
| 1945 | Jun 12 |
| 1946 | May 23 |
| 1947 | May 29 |
| 1948 | May 12 |
| 1949 | Jun 12 |
| 1950 | Jun 8 |
| 1951 | Jun 28 |
| 1952 | Jun 7 |
| 1953 | May 22 |
| 1954 | May 4 |
| 1955 | May 24 |
| 1956 | May 13 |
| 1957 | May 22 |
| 1958 | May 13 |
| 1959 | May 30 |
| 1960 | May 23 |
| 1961 | May 17 |
| 1962 | May 16 |
| 1963 | May 23 |
| 1965 | May 22 |
| 1966 | May 23 |
| 1967 | Jun 13 |
| 1968 | May 21 |
| 1969 | Jun 13 |
| 1970 | May 19 |
| 1971 | May 15 |
| 1972 | May 19 |
| 1973 | May 13 |
| 1974 | May 19 |
| 1975 | May 20 |
| 1976 | May 18 |
| 1977 | Jun 11 |
| 1978 | May 25 |
| 1979 | May 28 |
| 1980 | May 8 |
| 1981 | May 9 |
| 1982 | May 30 |
| 1983 | May 12 |
| 1984 | May 26 |
| 1985 | Jun 24 |
| 1986 | May 17 |
| 1987 | May 24 |
| 1988 | May 4 |
| 1989 | May 29 |
| 1990 | May 20 |
| 1991 | May 6 |
| 1992 | May 23 |
| 1993 | Jun 4 |
| 1994 | May 2 |
| 1995 | May 26 |
| 1996 | May 24 |
| 1997 | May 23 |
| 1998 | May 7 |
| 1999 | May 17 |
| 2000 | Jun 2 |
| 2001 | May 8 |
| 2002 | May 23 |
| 2003 | May 20 |
| 2011 | May 15 |
| 2012 | May 20 |
| 2013 | May 2 |
| 2014 | May 17 |
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 1916 | 60 |
| 1918 | 48 |
| 1920 | 76 |
| 1921 | 60 |
| 1922 | 90 |
| 1923 | 97 |
| 1924 | 94 |
| 1925 | 114 |
| 1926 | 88 |
| 1927 | 105 |
| 1928 | 97 |
| 1929 | 74 |
| 1930 | 96 |
| 1931 | 101 |
| 1932 | 88 |
| 1933 | 103 |
| 1935 | 78 |
| 1936 | 98 |
| 1937 | 115 |
| 1938 | 144 |
| 1939 | 99 |
| 1940 | 153 |
| 1941 | 101 |
| 1942 | 110 |
| 1943 | 88 |
| 1944 | 117 |
| 1945 | 96 |
| 1946 | 122 |
| 1947 | 107 |
| 1948 | 126 |
| 1949 | 89 |
| 1950 | 93 |
| 1951 | 74 |
| 1952 | 83 |
| 1953 | 121 |
| 1954 | 135 |
| 1955 | 107 |
| 1956 | 110 |
| 1957 | 118 |
| 1958 | 112 |
| 1959 | 99 |
| 1960 | 120 |
| 1961 | 113 |
| 1962 | 109 |
| 1963 | 136 |
| 1965 | 104 |
| 1966 | 114 |
| 1967 | 101 |
| 1968 | 122 |
| 1969 | 93 |
| 1970 | 114 |
| 1971 | 124 |
| 1972 | 109 |
| 1973 | 111 |
| 1974 | 114 |
| 1975 | 106 |
| 1976 | 112 |
| 1977 | 82 |
| 1978 | 117 |
| 1979 | 124 |
| 1980 | 108 |
| 1981 | 138 |
| 1982 | 103 |
| 1983 | 116 |
| 1984 | 117 |
| 1985 | 73 |
| 1986 | 111 |
| 1987 | 114 |
| 1988 | 136 |
| 1989 | 103 |
| 1990 | 129 |
| 1991 | 125 |
| 1992 | 90 |
| 1993 | 100 |
| 1994 | 121 |
| 1995 | 114 |
| 1996 | 104 |
| 1997 | 117 |
| 1998 | 141 |
| 1999 | 124 |
| 2000 | 100 |
| 2001 | 146 |
| 2002 | 126 |
| 2011 | 145 |
| 2012 | 136 |
| 2013 | 147 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 1914 | 11.0 °C |
| 1916 | 9.4 °C |
| 1918 | 10.6 °C |
| 1920 | 9.3 °C |
| 1921 | 10.0 °C |
| 1922 | 11.2 °C |
| 1923 | 10.4 °C |
| 1924 | 9.9 °C |
| 1925 | 10.9 °C |
| 1926 | 10.2 °C |
| 1927 | 9.8 °C |
| 1928 | 10.4 °C |
| 1929 | 10.8 °C |
| 1930 | 11.4 °C |
| 1931 | 11.3 °C |
| 1932 | 11.4 °C |
| 1933 | 10.6 °C |
| 1934 | 11.3 °C |
| 1935 | 9.6 °C |
| 1936 | 12.1 °C |
| 1937 | 11.5 °C |
| 1938 | 12.3 °C |
| 1939 | 11.8 °C |
| 1940 | 12.1 °C |
| 1941 | 12.2 °C |
| 1942 | 11.0 °C |
| 1943 | 11.0 °C |
| 1944 | 12.0 °C |
| 1945 | 9.9 °C |
| 1946 | 11.8 °C |
| 1947 | 11.1 °C |
| 1948 | 10.4 °C |
| 1949 | 12.6 °C |
| 1950 | 11.0 °C |
| 1951 | 9.9 °C |
| 1952 | 11.8 °C |
| 1953 | 10.3 °C |
| 1954 | 8.8 °C |
| 1955 | 10.6 °C |
| 1956 | 11.5 °C |
| 1957 | 11.4 °C |
| 1958 | 12.1 °C |
| 1959 | 10.2 °C |
| 1960 | 11.6 °C |
| 1961 | 12.2 °C |
| 1962 | 11.4 °C |
| 1963 | 12.2 °C |
| 1965 | 10.1 °C |
| 1966 | 10.5 °C |
| 1967 | 10.9 °C |
| 1968 | 10.3 °C |
| 1969 | 11.6 °C |
| 1970 | 11.8 °C |
| 1971 | 11.7 °C |
| 1972 | 10.3 °C |
| 1973 | 10.8 °C |
| 1974 | 10.6 °C |
| 1975 | 10.2 °C |
| 1976 | 12.0 °C |
| 1977 | 10.8 °C |
| 1978 | 11.1 °C |
| 1979 | 11.0 °C |
| 1980 | 11.2 °C |
| 1981 | 11.6 °C |
| 1982 | 10.3 °C |
| 1983 | 11.4 °C |
| 1984 | 11.1 °C |
| 1985 | 10.9 °C |
| 1986 | 10.3 °C |
| 1987 | 12.1 °C |
| 1988 | 12.0 °C |
| 1989 | 11.4 °C |
| 1990 | 11.2 °C |
| 1991 | 11.7 °C |
| 1992 | 10.7 °C |
| 1993 | 10.6 °C |
| 1994 | 12.1 °C |
| 1995 | 10.5 °C |
| 1996 | 10.5 °C |
| 1997 | 11.0 °C |
| 1998 | 13.1 °C |
| 1999 | 10.7 °C |
| 2000 | 11.0 °C |
| 2001 | 12.6 °C |
| 2002 | 10.9 °C |
| 2003 | 11.4 °C |
| 2011 | 11.8 °C |
| 2012 | 12.7 °C |
| 2013 | 12.4 °C |
What this means for you: Since 1916, Bowden's last spring frost has come about 2 days earlier per decade, on average. The frost-free season has grown by about 4 days per decade. Year-to-year swings are large, so keep using the safe date rather than the trend.
Source: daily records from Olds (NOAA GHCN-Daily, from Environment and Climate Change Canada). Years with too many missing days are left out.