Spring and Fall Freeze Climatology for Castle Hayne, NC

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Castle Hayne, North Carolina Spring and Fall Freeze Statistics

Castle Hayne's average date for the last spring freeze is March 31

Spring freeze statistics sorted by probability

Probability	Date
1%	Feb 27
5%	Mar 8
10%	Mar 13
25%	Mar 21
50%	Mar 31
75%	Apr 9
90%	Apr 17
95%	Apr 22
99%	May 1

Earliest last spring freeze: Feb 22, 2024

Latest last spring freeze: May 8, 1989

Spring freeze statistics sorted by date

Date	Probability
Jan 25	0.0%
Feb 1	0.0%
Feb 5	0.0%
Feb 10	0.0%
Feb 15	0.1%
Feb 20	0.2%
Feb 25	0.6%
Mar 1	1.4%
Mar 5	2.8%
Mar 10	6.1%
Mar 15	11.9%
Mar 20	20.7%
Mar 25	32.6%
Mar 30	46.7%
Apr 5	63.9%
Apr 10	76.5%
Apr 15	86.2%
Apr 20	92.7%
Apr 25	96.6%
Apr 30	98.6%
May 5	99.5%
May 10	99.8%

Since 1950, the date of Castle Hayne's last spring freeze has shifted 1.9 days earlier per decade.

Castle Hayne's average date for the first fall freeze is November 6

Fall freeze statistics sorted by probability

Probability	Date
1%	Oct 8
5%	Oct 17
10%	Oct 21
25%	Oct 29
50%	Nov 6
75%	Nov 15
90%	Nov 22
95%	Nov 27
99%	Dec 6

Earliest first fall freeze: October 4, 1974

Latest first fall freeze: December 3, 1985

Fall freeze statistics sorted by date

Date	Probability
Oct 1	0.2%
Oct 5	0.5%
Oct 10	1.4%
Oct 15	3.5%
Oct 20	7.9%
Oct 25	15.5%
Nov 1	32.2%
Nov 5	44.3%
Nov 10	60.0%
Nov 15	74.2%
Nov 20	85.2%
Nov 25	92.5%
Nov 30	96.7%
Dec 5	98.7%
Dec 10	99.6%
Dec 15	99.9%
Dec 20	100.0%
Dec 25	100.0%
Dec 30	100.0%

Since 1950, the date of Castle Hayne's first fall freeze has shifted 1.7 days later per decade.

Castle Hayne's average growing season length is 219 days

Growing season statistics sorted by probability

Probability	Days
1%	266
5%	252
10%	245
25%	233
50%	219
75%	206
90%	194
95%	187
99%	173

Shortest growing season: 179 days in 1974

Longest growing season: 275 days in 2024

Growing season statistics sorted by days

Days	Probability
160	99.9%
170	99.3%
180	97.6%
190	93.0%
200	83.4%
210	68.1%
220	48.7%
225	38.9%
230	29.7%
235	21.6%
240	15.0%
245	9.9%
250	3.7%
255	6.2%
260	2.1%
270	0.6%
280	0.1%
290	0.0%
300	0.0%

Since 1950, Castle Hayne's growing season has become 3.7 days longer per decade.

Research and Page Author: Tim Armstrong and Vicky Oliva
Last Updated: September 13, 2026

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