|
Table 28
Growing Season Data -- Salt Lake Airport
1928-present
|
Minimum Temperature Base
|
Latest in Spring
|
Spring
Average
|
First in Fall
|
Fall
Average
|
|
32 or below
|
May 28, 1954
|
April 30
|
September 13, 1928
|
October 15
|
|
28 or below
|
May 9, 1930
|
April 12
|
September 18, 1965
|
October 25
|
|
24 or below
|
April 21, 1982
|
March 24
|
October 17, 1964
|
November 9
|
|
20 or below
|
April 10, 1933
|
March 10
|
October 25, 1932
|
November 22
|
|
16 or below
|
April 5, 1955
|
February 24
|
October 30, 1971
|
November 28
|
|
10 or below
|
March 19, 1965
|
February 9
|
November 3, 1936
|
December 11
|
|
Minimum Temperature Base
|
Minimum Length of Growing
Season
|
Maximum Length of Growing
Season
|
Average Length
|
|
|
Period
|
Days
|
Period
|
Days
|
Days
|
|
32 or below
|
May 29 - Sept. 29, 1954
|
124
|
Mar. 11 - Nov. 3, 1992
|
237
|
167
|
|
28 or below
|
May 9 - October 16, 1930
|
159
|
Feb. 8 - Nov. 3, 1992
|
270
|
199
|
|
24 or below
|
Apr. 17 - Oct. 29, 1960
|
194
|
Jan. 27 - Nov. 26, 1934
|
302
|
226
|
|
20 or below
|
Apr. 2 - Nov. 2, 1936
|
213
|
Jan. 26 - Nov. 30, 1934
|
307
|
254
|
|
16 or below
|
Apr. 2 - Nov. 2, 1936
|
213
|
Dec. 21 - Dec. 5, 1977-78
|
348
|
278
|
|
10 or below
|
Feb. 28 - Nov. 18, 1929
|
262
|
Dec. 24 - Feb. 7, 1998-01
|
776
|
310
|
| *Freeze-free period is the number of days between the last freeze (32
degrees or below) in the Spring and the first freeze (32 degrees or below)
in the Fall. |
|
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