National Weather Service United States Department of Commerce

Longwood, North Carolina Spring and Fall Freeze Statistics

 

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

 

Spring freeze statistics sorted by probability

Probability Date
1% Feb 25
5% Mar 7
10% Mar 12
25% Mar 21
50% Mar 31
75% Apr 9
90% Apr 18
95% Apr 23
99% May 3

 

 

 

 

Earliest last spring freeze: March 1, 2020

Latest last spring freeze: May 3, 1981

 

 

 

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 0.3%
Feb 25 0.9%
Mar 1 1.8%
Mar 5 3.5%
Mar 10 7.1%
Mar 15 13.2%
Mar 20 22.0%
Mar 25 33.5%
Mar 30 46.9%
Apr 5 63.2%
Apr 10 75.3%
Apr 15 84.9%
Apr 20 91.6%
Apr 25 95.8%
Apr 30 98.1%
May 5 99.2%
May 10 99.7%

 

 

 

 

 

Spring Freeze probabilities for Longwood, NC

Observed spring freeze dates 1950-2020 in Longwood, NC

Since 1950, Longwood has 22 years of missing climate data. This makes it difficult to determine a statistically accurate change in spring freeze dates.  

 

 

 

Longwood's average date for the first fall freeze is  November 3

 

Fall freeze statistics sorted by probability

Probability Date
1% Sep 28
5% Oct 9
10% Oct 15
25% Oct 24
50% Nov 3
75% Nov 14
90% Nov 23
95% Nov 29
99% Dec 9

 

 

 

 

Earliest first fall freeze: October 4, 1974

Latest first fall freeze: December 4, 1985

 

 

 

Fall freeze statistics sorted by date

Date Probability
Oct 1 1.4%
Oct 5 2.7%
Oct 10 5.4%
Oct 15 9.9%
Oct 20 16.8%
Oct 25 26.2%
Nov 1 42.8%
Nov 5 53.1%
Nov 10 65.6%
Nov 15 76.6%
Nov 20 85.3%
Nov 25 91.5%
Nov 30 95.5%
Dec 5 97.8%
Dec 10 99.1%
Dec 15 99.9%
Dec 20 100.0%
Dec 25 100.0%
Dec 30 100.0%

 

 

 

 

 

Fall Freeze probabilities for Longwood, NC

Observed fall freeze dates 1950-2020 in Longwood, NC

Since 1950, Longwood has 22 years of missing climate data. This makes it difficult to determine a statistically accurate change in fall freeze dates.

 

 

 

Longwood's average growing season length is  217 days

 

Growing season statistics sorted by probability

Probability Days
1% 271
5% 255
10% 247
25% 233
50% 217
75% 201
90% 187
95% 178
99% 162

 

 

 

 

Shortest growing season: 153 days in 1981

Longest growing season: 251 days in 1994

 

 

 

Growing season statistics sorted by days

Days Probability
160 99.8%
170 99.3%
180 97.3%
190 92.0%
200 81.2%
210 64.4%
220 44.0%
225 34.1%
230 25.2%
235 17.7%
240 11.7%
245 7.4%
250 4.4%
255 2.5%
260 1.3%
270 0.3%
280 0.1%
290 0.0%
300 0.0%

 

 

 

 

 

Growing season length probabilities for Longwood, NC

Observed growing season lengths from 1950-2020 in Longwood, NC

Since 1950, Longwood has 22 years of missing climate data. This makes it difficult to determine a statistically accurate change in growing season length.  

 

 

 

Research and Page Author: Tim Armstrong
Last Updated: March 1, 2021