Centerville climate

Centerville Frost Dates and Growing Season

NOAA 1991-2020 normals for Charleroi Lock 4, 13.1 km from Centerville, elevation 749 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Charleroi Lock 4. 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 13 and the first fall freeze around November 5, a growing season of about 205 days.

Median at 36°F
last April 27, first October 25
Median at 32°F
last April 13, first November 5
Median at 28°F
last March 31, 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 16May 9May 4Apr 30Apr 27Apr 24Apr 20Apr 17Apr 11
32°FMay 5Apr 26Apr 21Apr 17Apr 13Apr 8Apr 5Apr 2Mar 29
28°FApr 14Apr 8Apr 5Apr 2Mar 31Mar 29Mar 25Mar 21Mar 15
24°FApr 2Mar 31Mar 27Mar 23Mar 20Mar 17Mar 13Mar 9Mar 3
20°FMar 25Mar 20Mar 16Mar 13Mar 9Mar 6Mar 2Feb 26Feb 18
16°FMar 17Mar 12Mar 8Mar 3Feb 28Feb 24Feb 18Feb 12Feb 5

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

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°F203194189184180176172165158
32°F227219214210205201196189182
28°F253244238234230225221216209
24°F277268262257251246242236229
20°F302293286280275271264257248
16°F326315309302298294289283274

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
5,289
Cooling degree days, base 65°F
925
Growing degree days, base 40°F
5,752
Growing degree days, base 45°F
4,502
Growing degree days, base 50°F
3,400
Growing degree days, base 55°F
2,438
Growing degree days, base 60°F
1,612

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January1,08004
February92006
March770128
April4056142
May15161385
June14173609
July2293756
August2253716
September63119506
October32118205
November637138
December92405

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 13.1 km from Centerville. Low ground, valleys and open fields freeze earlier and later than a town center or a hillside.

More

Sources

NOAA NCEI U.S. Climate Normals, 1991-2020, annual and seasonal normals for station USC00361377 (Charleroi Lock 4). Public domain.