Berry Hill climate

Berry Hill Frost Dates and Growing Season

NOAA 1991-2020 normals for Nashville Intl AP, 6.9 km from Berry Hill, elevation 600 ft

Frost and the growing season

NOAA's 1991-2020 freeze probabilities for Nashville 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 March 31 and the first fall freeze around November 3, a growing season of about 217 days.

Median at 36°F
last April 11, first October 25
Median at 32°F
last March 31, first November 3
Median at 28°F
last March 17, first November 15

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°FApr 28Apr 23Apr 19Apr 15Apr 11Apr 8Apr 5Apr 1Mar 27
32°FApr 16Apr 9Apr 6Apr 3Mar 31Mar 28Mar 24Mar 18Mar 13
28°FApr 4Mar 31Mar 26Mar 22Mar 17Mar 14Mar 10Mar 5Feb 28
24°FMar 23Mar 16Mar 12Mar 7Mar 4Mar 1Feb 25Feb 19Feb 13
20°FMar 13Mar 4Feb 28Feb 24Feb 20Feb 14Feb 9Feb 3Jan 27
16°FMar 2Feb 23Feb 16Feb 11Feb 5Feb 1Jan 28Jan 20Jan 12

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 13Oct 17Oct 21Oct 23Oct 25Oct 27Oct 30Nov 2Nov 6
32°FOct 22Oct 26Oct 30Nov 1Nov 3Nov 6Nov 9Nov 13Nov 18
28°FNov 2Nov 6Nov 9Nov 12Nov 15Nov 19Nov 24Nov 29Dec 3
24°FNov 10Nov 15Nov 19Nov 24Nov 28Dec 1Dec 4Dec 8Dec 16
20°FNov 21Nov 29Dec 2Dec 6Dec 10Dec 16Dec 23Dec 30Jan 7
16°FDec 4Dec 11Dec 18Dec 26Dec 31Jan 4Jan 9Jan 14Jan 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°F216209204200196192187183174
32°F241232226222217212209204197
28°F266258252247243238233229220
24°F294285277273266262257251242
20°F325316308302296290283276265
16°F352339332327321316309302291

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
95% 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
3,364
Cooling degree days, base 65°F
1,873
Growing degree days, base 40°F
7,974
Growing degree days, base 45°F
6,456
Growing degree days, base 50°F
5,082
Growing degree days, base 55°F
3,856
Growing degree days, base 60°F
2,788

Growing degree days by month, base 50°F

Heating and cooling by month

MonthHeating DDCooling DDGrowing DD 50
January788031
February606147
March43111149
April18052339
May42177600
June1363811
July0487952
August0456921
September14257693
October16562374
November4476119
December691146

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 6.9 km from Berry Hill. 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 USW00013897 (Nashville Intl AP). Public domain.