Growing Season Length = number of days between last freeze in the Spring and first freeze following Summer.
Year 2024 Growing season: 175 days (last freeze April 21, first freeze October 14)
Year 2023 Growing season: 176 days (last freeze May 3, first freeze October 27)
Year 2022 Growing season: 163 days (last freeze April 26, first freeze October 7)
Shortest Growing Season: 117 days, 1940 (last freeze May 16, first freeze September 11)
Longest Growing Season: 217 days, 1924 (last freeze April 2, first freeze November 6)
Normal (Average) Growing Season, all years: 171 days
Standard 30-year, 1991-2020, Normal (Average), is 164 days
Last five years
Year 2024: 175 days
Year 2023: 176 days
Year 2022: 163 days
Year 2021: 168 days
Year 2020: 167 days
There is a table with all of the data located below the graph
Growing Season Data: Last freeze = last day with temperatures falling to 32°F or lower following each Winter
Growing Season Data: First freeze = first day with temperatures falling to 32°F or lower following each Summer
Growing Season Data: DOTY, aka "calendar Day"= Day of the Year (for example, April 1 is the DOTY 91 (or 92nd day of the year if a leap year).
Growing Season Data: Length = the number of days between the last and first freezes each year
All of the following data are Official National Weather Service data for Lincoln, NE.
And, these data were acquired from the High Plains Regional Climate Center and the xmAcis program.
| Year | Last Freeze | Temp °F | First Freeze | Temp °F | Length Days |
| 2024 | 04-21 (2024) | 26 | 10-14 (2024) | 30 | 175 |
| 2023 | 05-03 (2023) | 30 | 10-27 (2023) | 28 | 176 |
| 2022 | 04-26 (2022) | 25 | 10-07 (2022) | 30 | 163 |
| 2021 | 05-05 (2021) | 32 | 10-21 (2021) | 32 | 168 |
| 2020 | 04-17 (2020) | 24 | 10-02 (2020) | 32 | 167 |
| 2019 | 04-14 (2019) | 24 | 10-11 (2019) | 30 | 179 |
| 2018 | 04-28 (2018) | 32 | 10-14 (2018) | 32 | 168 |
| 2017 | 04-27 (2017) | 32 | 10-11 (2017) | 30 | 166 |
| 2016 | 04-12 (2016) | 23 | 10-13 (2016) | 28 | 183 |
| 2015 | 04-23 (2015) | 30 | 10-16 (2015) | 32 | 175 |
| 2014 | 05-16 (2014) | 30 | 10-11 (2014) | 30 | 147 |
| 2013 | 05-12 (2013) | 31 | 10-17 (2013) | 32 | 157 |
| 2012 | 04-23 (2012) | 31 | 09-23 (2012) | 32 | 152 |
| 2011 | 05-03 (2011) | 30 | 10-18 (2011) | 31 | 167 |
| 2010 | 04-19 (2010) | 32 | 10-03 (2010) | 30 | 166 |
| 2009 | 04-28 (2009) | 31 | 10-03 (2009) | 32 | 157 |
| 2008 | 04-28 (2008) | 30 | 10-16 (2008) | 32 | 170 |
| 2007 | 04-15 (2007) | 28 | 10-23 (2007) | 32 | 190 |
| 2006 | 04-09 (2006) | 32 | 10-11 (2006) | 31 | 184 |
| 2005 | 05-03 (2005) | 27 | 09-29 (2005) | 31 | 148 |
| 2004 | 05-03 (2004) | 26 | 10-01 (2004) | 29 | 150 |
| 2003 | 04-22 (2003) | 30 | 09-29 (2003) | 32 | 159 |
| 2002 | 04-25 (2002) | 29 | 10-13 (2002) | 29 | 170 |
| 2001 | 04-18 (2001) | 29 | 10-05 (2001) | 32 | 169 |
| 2000 | 04-21 (2000) | 29 | 10-06 (2000) | 24 | 167 |
| 1999 | 04-18 (1999) | 26 | 09-21 (1999) | 32 | 155 |
| 1998 | 04-18 (1998) | 31 | 10-22 (1998) | 32 | 186 |
| 1997 | 05-13 (1997) | 27 | 10-17 (1997) | 32 | 156 |
| 1996 | 04-30 (1996) | 32 | 10-10 (1996) | 32 | 162 |
| 1995 | 05-02 (1995) | 31 | 09-22 (1995) | 27 | 142 |
| 1994 | 05-01 (1994) | 24 | 10-12 (1994) | 30 | 163 |
| 1993 | 04-17 (1993) | 32 | 09-15 (1993) | 31 | 150 |
| 1992 | 05-06 (1992) | 29 | 10-11 (1992) | 32 | 157 |
| 1991 | 04-01 (1991) | 31 | 09-19 (1991) | 29 | 170 |
| 1990 | 05-01 (1990) | 30 | 10-10 (1990) | 28 | 161 |
| 1989 | 05-07 (1989) | 29 | 09-23 (1989) | 31 | 138 |
| 1988 | 04-28 (1988) | 32 | 10-07 (1988) | 31 | 161 |
| 1987 | 04-12 (1987) | 31 | 10-03 (1987) | 27 | 173 |
| 1986 | 04-22 (1986) | 26 | 10-13 (1986) | 30 | 173 |
| 1985 | 04-09 (1985) | 24 | 09-30 (1985) | 31 | 173 |
| 1984 | 05-01 (1984) | 31 | 09-26 (1984) | 28 | 147 |
| 1983 | 05-15 (1983) | 32 | 09-23 (1983) | 31 | 130 |
| 1982 | 04-22 (1982) | 27 | 10-20 (1982) | 30 | 180 |
| 1981 | 05-11 (1981) | 31 | 10-19 (1981) | 31 | 160 |
| 1980 | 05-08 (1980) | 29 | 10-03 (1980) | 30 | 147 |
| 1979 | 05-04 (1979) | 32 | 10-13 (1979) | 22 | 161 |
| 1978 | 05-02 (1978) | 32 | 10-07 (1978) | 29 | 157 |
| 1977 | 04-06 (1977) | 29 | 10-09 (1977) | 30 | 185 |
| 1976 | 05-08 (1976) | 32 | 10-06 (1976) | 31 | 150 |
| 1975 | 04-20 (1975) | 27 | 09-25 (1975) | 29 | 157 |
| 1974 | 04-23 (1974) | 32 | 10-01 (1974) | 32 | 160 |
| 1973 | 05-15 (1973) | 32 | 10-28 (1973) | 28 | 165 |
| 1972 | 04-09 (1972) | 32 | 10-07 (1972) | 29 | 180 |
| 1971 | 04-06 (1971) | 26 | 10-31 (1971) | 32 | 207 |
| 1970 | 04-04 (1970) | 24 | 10-09 (1970) | 32 | 187 |
| 1969 | 03-31 (1969) | 30 | 10-14 (1969) | 30 | 196 |
| 1968 | 04-05 (1968) | 22 | 11-03 (1968) | 30 | 211 |
| 1967 | 05-03 (1967) | 31 | 10-27 (1967) | 26 | 176 |
| 1966 | 05-01 (1966) | 30 | 10-16 (1966) | 29 | 167 |
| 1965 | 04-28 (1965) | 32 | 09-24 (1965) | 32 | 148 |
| 1964 | 04-08 (1964) | 29 | 10-09 (1964) | 30 | 183 |
| 1963 | 04-23 (1963) | 30 | 10-29 (1963) | 28 | 188 |
| 1962 | 04-15 (1962) | 25 | 10-25 (1962) | 26 | 192 |
| 1961 | 05-02 (1961) | 31 | 10-20 (1961) | 32 | 170 |
| 1960 | 04-30 (1960) | 32 | 10-19 (1960) | 26 | 171 |
| 1959 | 04-13 (1959) | 27 | 10-17 (1959) | 31 | 186 |
| 1958 | 04-29 (1958) | 30 | 10-26 (1958) | 30 | 179 |
| 1957 | 04-14 (1957) | 31 | 10-25 (1957) | 28 | 193 |
| 1956 | 04-29 (1956) | 31 | 11-07 (1956) | 32 | 191 |
| 1955 | 04-07 (1955) | 30 | 10-24 (1955) | 30 | 199 |
| 1954 | 05-05 (1954) | 32 | 10-30 (1954) | 29 | 177 |
| 1953 | 04-27 (1953) | 32 | 10-24 (1953) | 32 | 179 |
| 1952 | 04-16 (1952) | 32 | 10-05 (1952) | 28 | 171 |
| 1951 | 04-22 (1951) | 32 | 09-28 (1951) | 28 | 158 |
| 1950 | 04-27 (1950) | 24 | 10-03 (1950) | 32 | 158 |
| 1949 | 04-18 (1949) | 30 | 09-29 (1949) | 30 | 163 |
| 1948 | 04-13 (1948) | 30 | 10-16 (1948) | 30 | 185 |
| 1947 | 05-29 (1947) | 32 | 10-29 (1947) | 29 | 152 |
| 1946 | 05-12 (1946) | 32 | 10-11 (1946) | 31 | 151 |
| 1945 | 05-05 (1945) | 32 | 10-08 (1945) | 32 | 155 |
| 1944 | 05-06 (1944) | 27 | 10-09 (1944) | 31 | 155 |
| 1943 | 04-20 (1943) | 26 | 10-05 (1943) | 31 | 167 |
| 1942 | 04-11 (1942) | 23 | 09-24 (1942) | 31 | 165 |
| 1941 | 04-10 (1941) | 32 | 10-16 (1941) | 32 | 188 |
| 1940 | 05-16 (1940) | 31 | 09-11 (1940) | 29 | 117 |
| 1939 | 04-19 (1939) | 32 | 09-30 (1939) | 31 | 163 |
| 1938 | 04-09 (1938) | 31 | 10-23 (1938) | 31 | 196 |
| 1937 | 04-26 (1937) | 32 | 10-14 (1937) | 27 | 170 |
| 1936 | 04-22 (1936) | 29 | 10-21 (1936) | 30 | 181 |
| 1935 | 05-05 (1935) | 32 | 10-04 (1935) | 32 | 151 |
| 1934 | 04-25 (1934) | 29 | 10-28 (1934) | 29 | 185 |
| 1933 | 04-15 (1933) | 28 | 10-22 (1933) | 30 | 189 |
| 1932 | 04-27 (1932) | 30 | 10-05 (1932) | 31 | 160 |
| 1931 | 04-27 (1931) | 31 | 11-01 (1931) | 28 | 187 |
| 1930 | 04-08 (1930) | 32 | 10-16 (1930) | 32 | 190 |
| 1929 | 04-12 (1929) | 32 | 10-23 (1929) | 30 | 193 |
| 1928 | 04-27 (1928) | 32 | 11-01 (1928) | 29 | 187 |
| 1927 | 04-22 (1927) | 30 | 10-31 (1927) | 31 | 191 |
| 1926 | 04-19 (1926) | 30 | 09-25 (1926) | 32 | 158 |
| 1925 | 03-27 (1925) | 32 | 10-09 (1925) | 29 | 195 |
| 1924 | 04-02 (1924) | 32 | 11-06 (1924) | 28 | 217 |
| 1923 | 04-17 (1923) | 30 | 10-20 (1923) | 31 | 185 |
| 1922 | 04-19 (1922) | 32 | 10-09 (1922) | 32 | 172 |
| 1921 | 04-17 (1921) | 28 | 10-12 (1921) | 32 | 177 |
| 1920 | 04-27 (1920) | 32 | 09-30 (1920) | 32 | 155 |
| 1919 | 04-24 (1919) | 30 | 10-10 (1919) | 31 | 168 |
| 1918 | 04-25 (1918) | 30 | 09-20 (1918) | 31 | 147 |
| 1917 | 05-05 (1917) | 32 | 10-08 (1917) | 24 | 155 |
| 1916 | 05-01 (1916) | 32 | 09-29 (1916) | 29 | 150 |
| 1915 | 04-03 (1915) | 31 | 10-08 (1915) | 32 | 187 |
| 1914 | 04-12 (1914) | 32 | 10-26 (1914) | 28 | 196 |
| 1913 | 04-13 (1913) | 30 | 10-19 (1913) | 27 | 188 |
| 1912 | 04-18 (1912) | 31 | 10-22 (1912) | 30 | 186 |
| 1911 | 05-02 (1911) | 31 | 10-21 (1911) | 30 | 171 |
| 1910 | 05-03 (1910) | 32 | 10-27 (1910) | 31 | 176 |
| 1909 | 05-10 (1909) | 30 | 10-11 (1909) | 29 | 153 |
| 1908 | 05-02 (1908) | 28 | 10-11 (1908) | 32 | 161 |
| 1907 | 05-15 (1907) | 31 | 10-12 (1907) | 30 | 149 |
| 1906 | 04-15 (1906) | 32 | 10-10 (1906) | 26 | 177 |
| 1905 | 04-18 (1905) | 32 | 10-20 (1905) | 30 | 184 |
| 1904 | 04-17 (1904) | 29 | 10-23 (1904) | 32 | 188 |
| 1903 | 04-30 (1903) | 25 | 10-27 (1903) | 31 | 179 |
| 1902 | 04-23 (1902) | 30 | 10-28 (1902) | 29 | 187 |
| 1901 | 04-18 (1901) | 29 | 09-18 (1901) | 31 | 152 |
| 1900 | 04-13 (1900) | 29 | 11-07 (1900) | 32 | 207 |
| 1899 | 04-21 (1899) | 30 | 09-29 (1899) | 27 | 160 |
| 1898 | 04-10 (1898) | 32 | 10-06 (1898) | 31 | 178 |
| 1897 | 04-19 (1897) | 30 | 11-02 (1897) | 29 | 196 |
| 1896 | 04-06 (1896) | 31 | 10-17 (1896) | 31 | 193 |
| 1895 | 04-02 (1895) | 31 | 09-30 (1895) | 28 | 180 |
| 1894 | 04-11 (1894) | 29 | 10-08 (1894) | 29 | 179 |
| 1893 | 04-29 (1893) | 32 | 09-25 (1893) | 31 | 148 |
| 1892 | 04-15 (1892) | 30 | 10-09 (1892) | 30 | 176 |
| 1891 | 04-07 (1891) | 30 | 10-07 (1891) | 29 | 182 |
| 1890 | 05-07 (1890) | 31 | 10-26 (1890) | 29 | 171 |
| 1889 | 04-04 (1889) | 30 | 10-06 (1889) | 30 | 184 |
| 1888 | 04-20 (1888) | 27 | 10-06 (1888) | 32 | 168 |
| 1887 | 04-23 (1887) | 31 | 10-18 (1887) | 31 | 177 |
Converting month, day to Calendar Day Non Leap Year
| Day | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Day |
| 1 | 1 | 32 | 61 | 92 | 122 | 153 | 183 | 214 | 245 | 275 | 306 | 336 | 1 |
| 2 | 2 | 33 | 62 | 93 | 123 | 154 | 184 | 215 | 246 | 276 | 307 | 337 | 2 |
| 3 | 3 | 34 | 63 | 94 | 124 | 155 | 185 | 216 | 247 | 277 | 308 | 338 | 3 |
| 4 | 4 | 35 | 64 | 95 | 125 | 156 | 186 | 217 | 248 | 278 | 309 | 339 | 4 |
| 5 | 5 | 36 | 65 | 96 | 126 | 157 | 187 | 218 | 249 | 279 | 310 | 340 | 5 |
| 6 | 6 | 37 | 66 | 97 | 127 | 158 | 188 | 219 | 250 | 280 | 311 | 341 | 6 |
| 7 | 7 | 38 | 67 | 98 | 128 | 159 | 189 | 220 | 251 | 281 | 312 | 342 | 7 |
| 8 | 8 | 39 | 68 | 99 | 129 | 160 | 190 | 221 | 252 | 282 | 313 | 343 | 8 |
| 9 | 9 | 40 | 69 | 100 | 130 | 161 | 191 | 222 | 253 | 283 | 314 | 344 | 9 |
| 10 | 10 | 41 | 70 | 101 | 131 | 162 | 192 | 223 | 254 | 284 | 315 | 345 | 10 |
| 11 | 11 | 42 | 71 | 102 | 132 | 163 | 193 | 224 | 255 | 285 | 316 | 346 | 11 |
| 12 | 12 | 43 | 72 | 103 | 133 | 164 | 194 | 225 | 256 | 286 | 317 | 347 | 12 |
| 13 | 13 | 44 | 73 | 104 | 134 | 165 | 195 | 226 | 257 | 287 | 318 | 348 | 13 |
| 14 | 14 | 45 | 74 | 105 | 135 | 166 | 196 | 227 | 258 | 288 | 319 | 349 | 14 |
| 15 | 15 | 46 | 75 | 106 | 136 | 167 | 197 | 228 | 259 | 289 | 320 | 350 | 15 |
| 16 | 16 | 47 | 76 | 107 | 137 | 168 | 198 | 229 | 260 | 290 | 321 | 351 | 16 |
| 17 | 17 | 48 | 77 | 108 | 138 | 169 | 199 | 230 | 261 | 291 | 322 | 352 | 17 |
| 18 | 18 | 49 | 78 | 109 | 139 | 170 | 200 | 231 | 262 | 292 | 323 | 353 | 18 |
| 19 | 19 | 50 | 79 | 110 | 140 | 171 | 201 | 232 | 263 | 293 | 324 | 354 | 19 |
| 20 | 20 | 51 | 80 | 111 | 141 | 172 | 202 | 233 | 264 | 294 | 325 | 355 | 20 |
| 21 | 21 | 52 | 81 | 112 | 142 | 173 | 203 | 234 | 265 | 295 | 326 | 356 | 21 |
| 22 | 22 | 53 | 82 | 113 | 143 | 174 | 204 | 235 | 266 | 296 | 327 | 357 | 22 |
| 23 | 23 | 54 | 83 | 114 | 144 | 175 | 205 | 236 | 267 | 297 | 328 | 358 | 23 |
| 24 | 24 | 55 | 84 | 115 | 145 | 176 | 206 | 237 | 268 | 298 | 329 | 359 | 24 |
| 25 | 25 | 56 | 85 | 116 | 146 | 177 | 207 | 238 | 269 | 299 | 330 | 360 | 25 |
| 26 | 26 | 57 | 86 | 117 | 147 | 178 | 208 | 239 | 270 | 300 | 331 | 361 | 26 |
| 27 | 27 | 58 | 87 | 118 | 148 | 179 | 209 | 240 | 271 | 301 | 332 | 362 | 27 |
| 28 | 28 | 59 | 88 | 119 | 149 | 180 | 210 | 241 | 272 | 302 | 333 | 363 | 28 |
| 29 | 29 | 60 | 89 | 120 | 150 | 181 | 211 | 242 | 273 | 303 | 334 | 364 | 29 |
| 30 | 30 | 90 | 121 | 151 | 182 | 212 | 243 | 274 | 304 | 335 | 365 | 30 | |
| 31 | 31 | 91 | 152 | 213 | 244 | 305 | 366 | 31 |