Automated Data Plotter
This application dynamically generates many types of graphs. These graphs are derived from processing of various data sources done by the IEM. Please feel free to use these generated graphics in whatever way you wish. Reset App. The IEM Explorer application offers a simplified frontend to some of these autoplots.
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Plot Description:
This plot presents the period between the first or last date for spring and fall season that the temperature was above or below some threshold. The year is split into two seasons on 1 July. A simple linear trend line is placed on both dates.# IEM Climodat https://mesonet.agron.iastate.edu/climodat/ # Report Generated: 19 Apr 2024 # Climate Record: 1895-01-01 -> 2024-04-19 # Site Information: [IATALO] Waterloo Area # Contact Information: Daryl Herzmann akrherz@iastate.edu 515.294.5978 # LENGTH OF SEASON FOR STATION NUMBER IATALO BASE TEMP=90.0 # LAST SPRING OCCURENCE FIRST FALL OCCURENCE YEAR MONTH DAY DOY MONTH DAY DOY LENGTH OF SEASON 1895 5 9 129 9 21 264 135 1896 5 25 146 8 10 223 77 1897 6 13 164 10 14 287 123 1898 6 3 154 9 28 271 117 1899 6 4 155 9 6 249 94 1900 5 13 133 9 9 252 119 1901 5 2 122 9 7 250 128 1905 6 4 155 8 29 241 86 1906 6 6 157 9 16 259 102 1907 6 16 167 8 31 243 76 1908 6 22 174 9 21 265 91 1909 5 5 125 8 26 238 113 1910 4 29 119 8 24 236 117 1911 5 25 145 9 14 257 112 1912 6 26 178 9 9 253 75 1913 6 15 166 9 7 250 84 1914 5 25 145 8 30 242 97 1916 6 29 181 10 7 281 100 1917 5 18 138 8 22 234 96 1918 5 3 123 8 25 237 114 1919 5 30 150 9 8 251 101 1920 6 10 162 10 11 285 123 1921 5 20 140 9 4 247 107 1922 6 8 159 9 8 251 92 1923 6 1 152 8 14 226 74 1924 5 5 126 8 30 243 117 1925 4 22 112 9 19 262 150 1926 4 30 120 9 17 260 140 1927 6 19 170 9 17 260 90 1928 5 9 130 9 9 253 123 1929 5 31 151 9 3 246 95 1930 4 10 100 10 12 285 185 1931 5 27 147 9 20 263 116 1932 5 14 135 8 30 243 108 1933 6 3 154 9 9 252 98 1934 5 5 125 8 18 230 105 1935 6 12 163 9 15 258 95 1936 5 16 137 9 22 266 129 1937 6 23 174 9 23 266 92 1938 6 22 173 9 23 266 93 1939 4 24 114 9 28 271 157 1940 5 13 134 9 7 251 117 1941 5 26 146 8 31 243 97 1942 5 29 149 9 1 244 95 1943 5 29 149 8 31 243 94 1944 5 14 135 8 15 228 93 1946 6 10 161 8 16 228 67 1947 6 28 179 9 9 252 73 1948 6 4 156 9 19 263 107 1949 4 25 115 8 26 238 123 1950 6 25 176 9 18 261 85 1952 6 5 157 9 30 274 117 1953 5 29 149 10 2 275 126 1954 6 14 165 9 6 249 84 1955 6 20 171 9 18 261 90 1956 5 22 143 8 27 240 97 1959 6 24 175 9 8 251 76 1961 6 10 161 9 10 253 92 1962 5 5 125 8 29 241 116 1963 6 4 155 10 6 279 124 1964 5 22 143 9 2 246 103 1966 6 21 172 9 1 244 72 1967 5 18 138 7 26 207 69 1968 6 4 156 8 23 236 80 1970 5 21 141 8 29 241 100 1971 6 19 170 9 7 250 80 1972 5 22 143 8 20 233 90 1973 6 8 159 8 29 241 82 1974 6 20 171 8 26 238 67 1975 5 19 139 10 13 286 147 1976 6 12 164 10 1 275 111 1977 6 4 155 8 27 239 84 1978 5 25 145 9 11 254 109 1979 6 6 157 8 31 243 86 1980 4 21 112 9 8 252 140 1981 6 13 164 7 12 193 29 1983 6 21 172 9 9 252 80 1984 5 17 138 9 24 268 130 1985 4 18 108 9 19 262 154 1986 6 19 170 7 24 205 35 1987 5 10 130 8 21 233 103 1988 5 28 149 9 17 261 112 1989 6 19 170 8 22 234 64 1990 6 26 177 9 6 249 72 1991 5 28 148 8 28 240 92 1992 6 12 164 8 9 222 58 1993 6 17 168 8 26 238 70 1994 4 18 108 9 15 258 150 1995 6 17 168 8 30 242 74 1996 5 17 138 8 21 234 96 1997 6 19 170 10 6 279 109 1998 5 14 134 9 13 256 122 1999 6 7 158 9 4 247 89 2000 6 8 160 9 18 262 102 2001 5 15 135 8 9 221 86 2002 4 15 105 9 9 252 147 2003 4 14 104 9 7 250 146 2004 6 7 159 7 20 202 43 2005 6 6 157 9 21 264 107 2006 5 28 148 8 24 236 88 2007 4 30 120 9 4 247 127 2008 6 7 159 7 11 193 34 2009 6 22 173 8 8 220 47 2010 5 24 144 8 29 241 97 2011 5 10 130 9 1 244 114 2012 5 15 136 9 11 255 119 2013 5 14 134 9 10 253 119 2015 6 9 160 9 6 249 89 2016 6 10 162 9 6 250 88 2017 6 3 154 9 24 267 113 2018 5 26 146 9 20 263 117 2019 5 16 136 9 30 273 137 2020 6 2 154 9 6 250 96 2021 5 1 121 9 19 262 141 2022 5 9 129 9 20 263 134 2023 5 30 150 10 2 275 125 MEAN 5 31 151 9 5 248 97View Data (as csv) Download as Excel
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IEM Daily Features using this plot
The IEM Daily Features found on this website often utilize plots found on this application. Here is a listing of features referencing this plot type.
- 15 Nov 2023: NCA5: Last Spring Freezes
- 05 Oct 2022: Our last 80?
- 09 Nov 2021: First and Last 65
- 04 Mar 2021: First and Last 60
- 07 Sep 2020: First Sub 55 High
- 19 Mar 2019: Awaiting First 60
- 04 Aug 2017: First Fall Sub 50
- 11 Nov 2016: First and Last 70
- 12 May 2016: First and Last Sub 40
- 09 Oct 2015: First and Last 80
- 07 Nov 2014: Last and First Frozen Day
- 23 Oct 2014: Last 70?
- 03 Oct 2014: First Sub-50 High
- 26 Sep 2014: 80 Degree Period
- 15 Nov 2012: Snow free period