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<br /> Last Spring Minimum of First Fall Minimum of Number of Days between
<br /> 240r or less 280r or~,ess 320r or less o 0 0 Date s
<br /> 32 F Cjr less 28 F of less 24 F or less
<br />YEAR Date !Temp. Date emn. Date ,Temn. Date Temn. Date Temn. Date ITemn. 2400r< 280 or< 320 or(
<br />1944 . 05/4 . 1l/9 T 189
<br /> I 04/18 : , , 09/27:
<br />1945 I , I 162
<br />1946 .I o 51i i 1 , 1 10/101 162
<br />1947 03/31 : 04/16 I I 10/7 ' 10/23, 190
<br />1948 23 03/31 1 23 05/10, 32 31 10/16, 27 10/17 22 200 199 150
<br />1949 03/3 I, 19 04/10 , 27 04/15\ 30 10/19 : 29 10/20, 27 12/4 21 248 193 187
<br />1950 04/4 24 04/29 1 26 OS/26, 32 11/2 , 26 11/2 I 26 11/8 15 218 187 160
<br />1951 04/15: 22 04/21 I 27 06/2 , 31 09/21, 32 10/22, 22 10/22 22 190 184 III
<br />1952 04/9 , 23 04/10 , 28 04/22, 32 10/6 I 32 10/15 , 26 11/7 23 212 188 167
<br />1953 05/12, 23 05/12 , 23 05/13 1 29 11/3 I 31 11/18 I 22 11/18 22 190 190 174
<br />1954 OS/2 I 24 OS/2 , 24 05/3 , 31 10/15, 32 10/27, 25 11/2 23 184 178 165
<br />1955 03/28, 24 04/13 I 27 04/28, 32 10/23, 25 10/23 , 25 11/2 I 20 219 193 178
<br />1956 04/9 , 24 04/9 , 24 04/23 I 32 10/24 I 31 11/1 1 26 1l/3 , 24 208 206 184
<br />1957 04/121 21 04/13 1 28 05/161 32 10/241 28 10/24, 28 11/18 I 23 220 194 161
<br />1958 03/18, 22 04/29 I 28 04/29, 28 10/28, 32 11/1 5 , 27 11/16 , 16 243 200 182
<br />1959 04/13, 24 04/21 , 28 04/21, 28 09/281 32 10/29, 28 10/31 I 22 201 191 160
<br />1960 04/30 , 24 04/30 , 24 04/30 I 24 10/141 32 11/5 1 26 11/8 , 23 192 189 167
<br />1961 04/15 1 23 04/16 1 27 05/13, 32 09/3 1 32 10/29, 24 10/29, 24 197 196 113
<br />1962 04/1 I 22 04/8 1 28 04/29, 32 11/7 , 32 11/16, 28 11/17 I 23 230 222 192
<br />1963 03/14 , 17 03/17 , 27 04/23 1 32 10/31, 30 11/1 , 28 11/22 I 23 253 229 191
<br />1964 04/7 , 23 04/8 , 27 05/8 I 32 10/19, 31 11/14 I 20 11/14 , 20 221 220 164
<br />1965 03/26, 11 03/26 I 11 05/8 , 32 09/16, 28 09/161 28 12/14 , 16 263 174 131
<br />1966 04/20, 17 05/12 I 28 05/12 , 28 10/13, 32 10/15 , 25 11/5 , 24 199 156 154 I
<br />1967 03/8 , 10 04/23 , 27 05/13 I 32 10/271 29 10/30, 28 11/2 I 17 239 190 167
<br />1968 04/4 I 17 04/23 , 25 04/271 32 10/8 I 32 11/7 I 24 11/7 1 24 217 198 164
<br />1969 03/26, 24 03/30 I 28 04/27 , 32 10/3 , 30 10/11, 20 lOll! , 20 199 195 159
<br />1970 04/4 I 20 04/4 , 20 04/22 1 31 09/24, 32 10/7 , 22 10/7 , 22 186 186 155
<br />1971 03/18, 24 04/6 I 27 04/26 I 32 09/16, 31 09/19, 27 10/28 I 20 224 166 143
<br />1972 04/3 , 24 04/3 ,24 04/26 I 32 10/29, 20 10/29, 20 10/29, 20 209 209 186
<br />1973 04/10, 23 04/15 , 28 OS/2 I 32 10/10, 32 10/11, 28 - I - - 179 161
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<br />TABLE 8 - DenverWB City Freeze Data (OF) - Elev. 5221 Ft.*'
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<br />* According to U. S. Department of Commerce (II) ([2) ([3)
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