Pleasant View climate

Pleasant View Frost Dates and Growing Season

NOAA 1991-2020 normals for Ogden Pioneer Ph, 9.1 km from Pleasant View, elevation 4350 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Ogden Pioneer Ph. A median date has an even chance of a later freeze in spring, or an earlier one in fall.

The last spring freeze typically comes around April 21 and the first fall freeze around October 23, a growing season of about 184 days.

Median at 36°F
last May 4, first October 12
Median at 32°F
last April 21, first October 23
Median at 28°F
last April 5, first November 3

Last freeze in spring

The chance of a later freeze than the date shown. At 10 percent, one spring in ten still freezes after the date; planting after the 10 percent date for 32°F is the cautious choice.

Threshold10%20%30%40%50%60%70%80%90%
36°FMay 29May 19May 12May 8May 4May 2Apr 29Apr 26Apr 21
32°FMay 6May 1Apr 28Apr 25Apr 21Apr 18Apr 14Apr 9Apr 2
28°FApr 21Apr 17Apr 12Apr 8Apr 5Apr 1Mar 28Mar 20Mar 12
24°FApr 9Apr 3Mar 29Mar 23Mar 18Mar 12Mar 8Mar 4Feb 28
20°FMar 23Mar 14Mar 8Mar 5Mar 2Feb 28Feb 23Feb 20Feb 14
16°FMar 5Mar 1Feb 25Feb 22Feb 19Feb 16Feb 12Feb 7Jan 31

First freeze in fall

The chance of an earlier freeze than the date shown. At 10 percent, one fall in ten freezes before the date.

Threshold10%20%30%40%50%60%70%80%90%
36°FSep 30Oct 3Oct 6Oct 9Oct 12Oct 15Oct 17Oct 20Oct 25
32°FOct 8Oct 14Oct 17Oct 20Oct 23Oct 26Oct 29Nov 1Nov 6
28°FOct 20Oct 24Oct 28Nov 1Nov 3Nov 6Nov 9Nov 12Nov 17
24°FOct 27Nov 2Nov 6Nov 10Nov 13Nov 16Nov 19Nov 22Nov 27
20°FNov 6Nov 12Nov 16Nov 19Nov 23Nov 26Nov 29Dec 2Dec 9
16°FNov 15Nov 21Nov 24Nov 28Dec 1Dec 5Dec 10Dec 15Dec 25

Growing season length

Days between the last spring and first fall freeze at each threshold, with the chance of a season at least that long.

Threshold10%20%30%40%50%60%70%80%90%
36°F178171166162158153148143134
32°F208200194189184180175169162
28°F237229222217212208203197190
24°F265259252246240234228222212
20°F289280274269264260255248239
16°F316306299293287282276270261

How often it gets that cold

The share of years with at least one night at or below each temperature.

36°F or colder
100% of years
32°F or colder
100% of years
28°F or colder
100% of years
24°F or colder
100% of years
20°F or colder
100% of years
16°F or colder
100% of years

Degree days

A degree day is one degree of the daily mean temperature beyond a base, for one day. Heating degree days count cold (the fuel a house burns), cooling degree days heat, growing degree days the warmth a crop needs; each crop has its own base.

Heating degree days, base 65°F
5,508
Cooling degree days, base 65°F
1,136
Growing degree days, base 40°F
5,715
Growing degree days, base 45°F
4,499
Growing degree days, base 50°F
3,438
Growing degree days, base 55°F
2,529
Growing degree days, base 60°F
1,773

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,08200
February87201
March645033
April4413101
May19846327
June42182590
July2417880
August4365826
September70116499
October3647166
November734015
December1,05500

What this means

NOAA computes these from the daily lows at the station over 1991-2020, fitting the dates of each year's last and first freeze to a distribution, so a date can be stated at any level of risk. 36°F is a frost risk for tender plants on a clear, calm night, since the ground cools below the air above it; 32°F is a freeze; 28°F is a hard freeze that kills most annuals.

The station is 9.1 km from Pleasant View. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

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Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00426404 (Ogden Pioneer Ph). Public domain.