ZIP 84065 Zone 7a

Utah · USDA zone 7a, average annual extreme minimum 0°F to 5°F.

Nearest qualified station: DRAPER-POINT OF MTN, UT US (USC00422235), 2.4 miles from the Census ZCTA internal point for this ZIP.

Median last 32°F is April 18. Median first 32°F is October 22. The 50% growing-season length is 185 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

Last 32°F in spring

NCEI’s probability is the chance the last spring minimum of 32°F or lower occurs on or after the date.

ProbabilityDateHow to read it
90%March 31Earlier date. A last 32°F on or after this day is common.
50%April 18Median.
10%May 6Later date. A last 32°F on or after this day is uncommon.

First 32°F in fall

NCEI’s probability is the chance the first autumn minimum of 32°F or lower occurs on or before the date.

ProbabilityDateHow to read it
10%October 7Earlier date. A first 32°F on or before this day is uncommon.
50%October 22Median.
90%November 5Later date. A first 32°F on or before this day is common.

32°F growing-season length

Days between the last spring 32°F and the first autumn 32°F. The figure is a length the season meets or exceeds at that probability, from NCEI, not a subtraction done on this site.

Probability the season is at least this longDays
10%209
50%185
90%162

28°F threshold

10%50%90%
Last, on or afterApril 17March 31March 7
First, on or beforeOctober 18November 2November 18
Season at least244 days216 days191 days

36°F threshold

10%50%90%
Last, on or afterMay 22May 2April 17
First, on or beforeSeptember 27October 10October 23
Season at least181 days158 days132 days

Station DRAPER-POINT OF MTN, UT US (USC00422235). Completeness flag R, 15 years used for the 32°F dates. NCEI’s annual probability of at least one day at or below 32°F is 100%. Freeze dates are conditional on that threshold occurring. Elevation 1373.4 m. The same probability language applies to the 28°F and 36°F rows when those dates passed the same quality checks.

Methodology · Utah cities