Park View climate

Park View Frost Dates and Growing Season

NOAA 1991-2020 normals for Davenport WFO, 9.6 km from Park View, elevation 750 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Davenport WFO. 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 17, a growing season of about 176 days.

Median at 36°F
last May 1, first October 7
Median at 32°F
last April 21, first October 17
Median at 28°F
last April 11, first October 26

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 15May 10May 7May 4May 1Apr 29Apr 25Apr 21Apr 16
32°FMay 7May 2Apr 28Apr 24Apr 21Apr 18Apr 15Apr 11Apr 7
28°FApr 27Apr 22Apr 18Apr 14Apr 11Apr 8Apr 5Apr 2Mar 30
24°FApr 16Apr 10Apr 6Apr 4Apr 2Mar 31Mar 26Mar 21Mar 15
20°FApr 5Apr 1Mar 28Mar 24Mar 20Mar 17Mar 13Mar 10Mar 4
16°FMar 28Mar 21Mar 17Mar 14Mar 11Mar 9Mar 5Mar 2Feb 25

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 23Sep 28Oct 1Oct 4Oct 7Oct 10Oct 12Oct 15Oct 20
32°FOct 3Oct 8Oct 12Oct 14Oct 17Oct 19Oct 22Oct 24Oct 29
28°FOct 13Oct 17Oct 20Oct 23Oct 26Oct 28Oct 31Nov 3Nov 8
24°FOct 23Oct 28Oct 31Nov 2Nov 5Nov 8Nov 11Nov 15Nov 20
20°FNov 3Nov 6Nov 10Nov 13Nov 16Nov 19Nov 22Nov 26Nov 30
16°FNov 9Nov 14Nov 18Nov 22Nov 25Nov 27Dec 1Dec 4Dec 11

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°F177170166162158155150145139
32°F196189184180176173169164158
28°F216209205201197194189184177
24°F241234227223219214209204197
20°F261254248244240235231225218
16°F279271266262257253248243234

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
6,397
Cooling degree days, base 65°F
890
Growing degree days, base 40°F
5,396
Growing degree days, base 45°F
4,253
Growing degree days, base 50°F
3,233
Growing degree days, base 55°F
2,333
Growing degree days, base 60°F
1,549

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,35000
February1,09503
March844335
April4556120
May16861370
June14195631
July4282744
August9224680
September103103455
October39815167
November778127
December1,18101

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 9.6 km from Park 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 USC00132070 (Davenport WFO). Public domain.