Fairview climate

Fairview Frost Dates and Growing Season

NOAA 1991-2020 normals for Erie Intl AP, 8.1 km from Fairview, elevation 730 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Erie Intl AP. 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 26 and the first fall freeze around November 4, a growing season of about 192 days.

Median at 36°F
last May 7, first October 23
Median at 32°F
last April 26, first November 4
Median at 28°F
last April 11, first November 16

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 21May 17May 14May 10May 7May 4Apr 30Apr 27Apr 23
32°FMay 13May 6May 2Apr 29Apr 26Apr 23Apr 20Apr 16Apr 10
28°FApr 25Apr 21Apr 18Apr 15Apr 11Apr 8Apr 6Apr 3Mar 31
24°FApr 15Apr 8Apr 5Apr 3Apr 1Mar 30Mar 27Mar 22Mar 16
20°FApr 2Mar 30Mar 27Mar 23Mar 20Mar 17Mar 14Mar 10Mar 4
16°FMar 25Mar 20Mar 17Mar 15Mar 13Mar 9Mar 5Mar 1Feb 23

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°FOct 8Oct 14Oct 17Oct 21Oct 23Oct 26Oct 29Nov 1Nov 6
32°FOct 21Oct 27Oct 30Nov 1Nov 4Nov 7Nov 9Nov 12Nov 17
28°FNov 2Nov 6Nov 9Nov 12Nov 16Nov 19Nov 23Nov 28Dec 3
24°FNov 12Nov 17Nov 21Nov 25Nov 28Dec 1Dec 5Dec 9Dec 15
20°FNov 23Nov 29Dec 2Dec 6Dec 10Dec 13Dec 17Dec 22Dec 29
16°FDec 3Dec 10Dec 15Dec 18Dec 22Dec 26Dec 30Jan 2Jan 10

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°F189183178174170165161156148
32°F214205200196192188184179171
28°F240234228223219214210205198
24°F265256251246241238233227220
20°F286277272268264259254249242
16°F305297292288284279275269262

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
5,905
Cooling degree days, base 65°F
752
Growing degree days, base 40°F
5,221
Growing degree days, base 45°F
4,044
Growing degree days, base 50°F
3,010
Growing degree days, base 55°F
2,116
Growing degree days, base 60°F
1,361

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,13903
February1,00904
March897121
April534686
May23846293
June46144548
July5242702
August7210668
September8490457
October34614180
November643143
December95806

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 8.1 km from Fairview. 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 USW00014860 (Erie Intl AP). Public domain.