Sapelo Is Weather Records (USC00097808)

Record envelope, standing records and threshold days for Sapelo Is (USC00097808), Georgia, United States, with 70 years of record.

Key Facts for Sapelo Is

Sapelo Is (USC00097808) is a weather station in Georgia, United States at 31.40 latitude and -81.28 longitude, 3 m (10 ft) above sea level.
The station reports from 1957 to 2026, 70 years of record.
1,464 records set at Sapelo Is still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Sapelo Is tied a daily record high minimum temperature of 23.3 C (73.9 F) on 2 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Georgia, United States, 31.40 latitude, -81.28 longitude.
Elevation: 3 m (10 ft).
Period of record: 1957 to 2026, 70 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

10 days at or beyond a record

The band shows the record high and record low for each calendar day at Sapelo Is. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Sapelo Is, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	28.3 C (82.9 F)	-16.1 C (3.0 F)	25.0 C (77.0 F)	-4.4 C (24.1 F)
Feb	30.0 C (86.0 F)	-12.2 C (10.0 F)	28.9 C (84.0 F)	-3.3 C (26.1 F)
Mar	31.7 C (89.1 F)	-6.7 C (19.9 F)	30.6 C (87.1 F)	2.2 C (36.0 F)
Apr	35.0 C (95.0 F)	0.0 C (32.0 F)	30.6 C (87.1 F)	11.7 C (53.1 F)
May	37.2 C (99.0 F)	5.0 C (41.0 F)	32.8 C (91.0 F)	11.1 C (52.0 F)
Jun	38.3 C (100.9 F)	10.6 C (51.1 F)	37.8 C (100.0 F)	17.2 C (63.0 F)
Jul	40.6 C (105.1 F)	15.0 C (59.0 F)	36.7 C (98.1 F)	22.2 C (72.0 F)
Aug	38.9 C (102.0 F)	14.4 C (57.9 F)	37.2 C (99.0 F)	22.2 C (72.0 F)
Sep	36.7 C (98.1 F)	8.9 C (48.0 F)	32.2 C (90.0 F)	19.4 C (66.9 F)
Oct	34.4 C (93.9 F)	1.1 C (34.0 F)	30.6 C (87.1 F)	22.8 C (73.0 F)
Nov	31.7 C (89.1 F)	-3.3 C (26.1 F)	n/a	n/a
Dec	28.9 C (84.0 F)	-12.8 C (9.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Sapelo Is still stand. 1962 holds the most, with 63.

Standing records at Sapelo Is by the year they were set
Year set	Standing records
1957	16
1958	28
1959	21
1960	30
1961	32
1962	63
1963	22
1964	9
1965	12
1966	14
1967	51
1968	27
1972	28
1973	15
1974	30
1975	18
1976	26
1977	28
1978	16
1979	17
1980	16
1981	19
1982	16
1983	15
1984	29
1985	26
1986	28
1987	16
1988	17
1989	35
1990	12
1991	20
1992	20
1993	16
1994	10
1995	14
1996	19
1997	29
1998	36
1999	28
2000	23
2001	28
2002	33
2003	15
2004	8
2005	12
2006	13
2007	18
2008	16
2009	12
2010	27
2011	25
2012	23
2013	16
2014	24
2015	31
2016	25
2017	30
2018	23
2019	33
2020	24
2021	9
2022	9
2023	11
2024	12
2025	25
2026	15

All-Time Record Progression

1 new records

1 all-time records were set at Sapelo Is between 22 January 2025 and 22 January 2025. Each dot is a new record.

Wettest Day of Each Month

Jun: 205.0 mm (8.1 in)

The wettest day on record for each calendar month at Sapelo Is. The most was 205.0 mm (8.1 in) on 23 June 1984.

Record daily precipitation for each month at Sapelo Is
Month	Record daily precipitation (mm)	Date
Jan	128.0 mm (5.0 in)	21 January 1983
Feb	108.2 mm (4.3 in)	17 February 1998
Mar	115.6 mm (4.6 in)	3 March 2002
Apr	104.1 mm (4.1 in)	19 April 2014
May	90.9 mm (3.6 in)	26 May 2003
Jun	205.0 mm (8.1 in)	23 June 1984
Jul	127.0 mm (5.0 in)	8 July 2021
Aug	131.6 mm (5.2 in)	31 August 1976
Sep	142.7 mm (5.6 in)	14 September 2016
Oct	174.0 mm (6.9 in)	5 October 2024
Nov	111.0 mm (4.4 in)	17 November 1986
Dec	137.9 mm (5.4 in)	23 December 2019

Period of Record Coverage

1957 to 2026

68 years of record at Sapelo Is, 1957 to 2026. 13 years have data for under 90 percent of days and are left out of rankings: 1957, 1964, 1971, 1982, 1984, 1985, 2004, 2005 and others.

Days with data per year at Sapelo Is
Year	Days with data	Share of year	Complete
1957	244	67%	No
1958	356	98%	Yes
1959	358	98%	Yes
1960	354	97%	Yes
1961	357	98%	Yes
1962	347	95%	Yes
1963	342	94%	Yes
1964	154	42%	No
1965	361	99%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1971	1	0%	No
1972	364	99%	Yes
1973	361	99%	Yes
1974	361	99%	Yes
1975	358	98%	Yes
1976	361	99%	Yes
1977	362	99%	Yes
1978	359	98%	Yes
1979	354	97%	Yes
1980	357	98%	Yes
1981	337	92%	Yes
1982	324	89%	No
1983	343	94%	Yes
1984	320	87%	No
1985	326	89%	No
1986	362	99%	Yes
1987	361	99%	Yes
1988	363	99%	Yes
1989	362	99%	Yes
1990	363	99%	Yes
1991	351	96%	Yes
1992	359	98%	Yes
1993	363	99%	Yes
1994	364	100%	Yes
1995	334	92%	Yes
1996	362	99%	Yes
1997	355	97%	Yes
1998	364	100%	Yes
1999	330	90%	Yes
2000	350	96%	Yes
2001	351	96%	Yes
2002	350	96%	Yes
2003	340	93%	Yes
2004	242	66%	No
2005	293	80%	No
2006	288	79%	No
2007	328	90%	No
2008	273	75%	No
2009	361	99%	Yes
2010	361	99%	Yes
2011	363	99%	Yes
2012	365	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	361	99%	Yes
2016	363	99%	Yes
2017	360	99%	Yes
2018	364	100%	Yes
2019	360	99%	Yes
2020	301	82%	No
2021	340	93%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	252	69%	No

Latest Records

Latest records at Sapelo Is
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 October 2026	Sapelo Is, US	daily high min (Tie, Provisional)	23.3 C (73.9 F)	tie	61 years	6 of 100 (Routine)
20 August 2026	Sapelo Is, US	daily high max (Provisional)	36.7 C (98.1 F)	0.6 C (1.1 F)	16 years	13 of 100 (Routine)
19 August 2026	Sapelo Is, US	daily high max (Provisional)	37.2 C (99.0 F)	0.5 C (0.9 F)	31 years	18 of 100 (Routine)
18 August 2026	Sapelo Is, US	daily high max (Provisional)	36.1 C (97.0 F)	0.5 C (0.9 F)	12 years	12 of 100 (Routine)
21 July 2026	Sapelo Is, US	daily high min	27.2 C (81.0 F)	0.5 C (0.9 F)	64 years	28 of 100 (Routine)
30 June 2026	Sapelo Is, US	daily high max	37.8 C (100.0 F)	0.6 C (1.1 F)	48 years	23 of 100 (Routine)
28 June 2026	Sapelo Is, US	daily high min (Tie)	26.1 C (79.0 F)	tie	16 years	3 of 100 (Routine)
27 June 2026	Sapelo Is, US	daily high min	26.7 C (80.1 F)	1.1 C (2.0 F)	20 years	18 of 100 (Routine)
26 June 2026	Sapelo Is, US	daily high min	26.1 C (79.0 F)	0.5 C (0.9 F)	16 years	14 of 100 (Routine)
23 June 2026	Sapelo Is, US	daily high min	26.7 C (80.1 F)	1.7 C (3.1 F)	8 years	17 of 100 (Routine)
23 June 2026	Sapelo Is, US	daily high max (Tie)	36.7 C (98.1 F)	tie	15 years	2 of 100 (Routine)
19 June 2026	Sapelo Is, US	daily high max (Tie)	37.2 C (99.0 F)	tie	28 years	3 of 100 (Routine)
18 June 2026	Sapelo Is, US	daily high min	27.8 C (82.0 F)	2.2 C (4.0 F)	11 years	20 of 100 (Routine)
16 June 2026	Sapelo Is, US	daily high min (Tie)	25.6 C (78.1 F)	tie	28 years	3 of 100 (Routine)
4 June 2026	Sapelo Is, US	daily low max	24.4 C (75.9 F)	1.2 C (2.2 F)	3 years	11 of 100 (Routine)
29 May 2026	Sapelo Is, US	daily rain	50.8 mm (2.0 in)	15.2 mm (0.6 in)	32 years	26 of 100 (Routine)
22 May 2026	Sapelo Is, US	daily high min (Tie)	24.4 C (75.9 F)	tie	40 years	4 of 100 (Routine)
14 May 2026	Sapelo Is, US	daily rain	33.3 mm (1.3 in)	0.3 mm (0.01 in)	53 years	23 of 100 (Routine)
4 May 2026	Sapelo Is, US	daily low max	20.6 C (69.1 F)	0.5 C (0.9 F)	40 years	20 of 100 (Routine)
3 May 2026	Sapelo Is, US	daily low max	18.3 C (64.9 F)	1.1 C (2.0 F)	12 years	13 of 100 (Routine)

Climate Trend

55 complete years, 1958 to 2025

One stripe for each of 55 complete years at Sapelo Is, 1958 to 2025. Blue stripes are years cooler than the station's own mean of 19.8 C (67.7 F); red stripes are warmer. The coolest year was 1976, at 18.5 C (65.3 F), and the warmest was 2017, at 21.4 C (70.6 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Sapelo Is as warming stripes, 1958 to 2025
Year	Annual mean temperature	Difference from the station mean
1958	19.0 C	-0.86 C
1959	20.1 C	+0.33 C
1960	19.4 C	-0.46 C
1961	19.7 C	-0.10 C
1962	20.0 C	+0.22 C
1963	19.5 C	-0.33 C
1965	19.5 C	-0.35 C
1966	18.7 C	-1.08 C
1967	19.2 C	-0.59 C
1968	18.5 C	-1.32 C
1972	20.0 C	+0.14 C
1973	19.8 C	+0.02 C
1974	20.0 C	+0.20 C
1975	19.8 C	+0.00 C
1976	18.5 C	-1.33 C
1977	19.2 C	-0.64 C
1978	18.9 C	-0.87 C
1979	19.0 C	-0.86 C
1980	19.1 C	-0.72 C
1983	18.7 C	-1.15 C
1984	18.7 C	-1.13 C
1985	19.9 C	+0.08 C
1986	20.4 C	+0.61 C
1987	19.2 C	-0.64 C
1988	18.8 C	-1.01 C
1989	19.2 C	-0.62 C
1990	20.8 C	+0.98 C
1991	19.8 C	-0.01 C
1992	18.7 C	-1.12 C
1993	19.0 C	-0.79 C
1994	19.5 C	-0.34 C
1996	19.3 C	-0.55 C
1997	19.9 C	+0.12 C
1998	21.0 C	+1.17 C
2000	19.5 C	-0.31 C
2001	20.2 C	+0.35 C
2002	20.4 C	+0.60 C
2003	19.7 C	-0.07 C
2007	20.6 C	+0.78 C
2009	20.2 C	+0.34 C
2010	19.4 C	-0.46 C
2011	20.7 C	+0.85 C
2012	21.0 C	+1.15 C
2013	20.3 C	+0.52 C
2014	19.7 C	-0.11 C
2015	21.0 C	+1.23 C
2016	21.2 C	+1.42 C
2017	21.4 C	+1.62 C
2018	20.9 C	+1.06 C
2019	21.3 C	+1.52 C
2021	19.9 C	+0.12 C
2022	20.1 C	+0.30 C
2023	20.5 C	+0.65 C
2024	20.5 C	+0.72 C
2025	20.5 C	+0.65 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1958 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 55 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Sapelo Is
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.3 to 0.6) per decade	1958 to 2025	55	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1958 to 2025	55	Rise
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1958 to 2025	55	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1957 to 2026

Yearly extremes at Sapelo Is: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	1986	36.7 C (98.1 F)	68
Coldest night (TNn)	-16.1 C (3.0 F)	1985	-5.0 C (23.0 F)	67
Wettest day (Rx1day)	205.0 mm (8.1 in)	1984	99.8 mm (3.9 in)	67
Wettest five days (Rx5day)	296.4 mm (11.7 in)	2005	148.3 mm (5.8 in)	67
Longest dry spell (CDD)	48 days	1987	22 days	67

Hottest day (TXx)

The hottest day of the year at Sapelo Is, 1957 to 2026. The record is 40.6 C (105.1 F) in 1986, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Sapelo Is by year
Year	Hottest day (TXx)
1957	36.1 C (97.0 F)
1958	36.1 C (97.0 F)
1959	37.2 C (99.0 F)
1960	37.2 C (99.0 F)
1961	37.2 C (99.0 F)
1962	37.2 C (99.0 F)
1963	37.2 C (99.0 F)
1964	37.2 C (99.0 F)
1965	35.6 C (96.1 F)
1966	35.6 C (96.1 F)
1967	35.0 C (95.0 F)
1968	37.2 C (99.0 F)
1971	12.8 C (55.0 F)
1972	36.1 C (97.0 F)
1973	35.0 C (95.0 F)
1974	34.4 C (93.9 F)
1975	35.0 C (95.0 F)
1976	36.1 C (97.0 F)
1977	38.9 C (102.0 F)
1978	36.1 C (97.0 F)
1979	35.6 C (96.1 F)
1980	38.9 C (102.0 F)
1981	38.9 C (102.0 F)
1982	36.7 C (98.1 F)
1983	36.7 C (98.1 F)
1984	36.1 C (97.0 F)
1985	37.2 C (99.0 F)
1986	40.6 C (105.1 F)
1987	35.6 C (96.1 F)
1988	36.7 C (98.1 F)
1989	36.1 C (97.0 F)
1990	38.3 C (100.9 F)
1991	36.1 C (97.0 F)
1992	36.1 C (97.0 F)
1993	38.3 C (100.9 F)
1994	35.0 C (95.0 F)
1995	37.2 C (99.0 F)
1996	36.7 C (98.1 F)
1997	35.6 C (96.1 F)
1998	38.3 C (100.9 F)
1999	38.9 C (102.0 F)
2000	40.0 C (104.0 F)
2001	35.6 C (96.1 F)
2002	36.7 C (98.1 F)
2003	36.1 C (97.0 F)
2004	36.1 C (97.0 F)
2005	36.1 C (97.0 F)
2006	37.8 C (100.0 F)
2007	37.2 C (99.0 F)
2008	37.2 C (99.0 F)
2009	37.2 C (99.0 F)
2010	39.4 C (102.9 F)
2011	37.8 C (100.0 F)
2012	37.2 C (99.0 F)
2013	36.1 C (97.0 F)
2014	37.2 C (99.0 F)
2015	37.8 C (100.0 F)
2016	38.9 C (102.0 F)
2017	36.1 C (97.0 F)
2018	37.8 C (100.0 F)
2019	37.2 C (99.0 F)
2020	37.2 C (99.0 F)
2021	36.1 C (97.0 F)
2022	37.8 C (100.0 F)
2023	36.7 C (98.1 F)
2024	36.1 C (97.0 F)
2025	36.7 C (98.1 F)
2026	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Sapelo Is, 1957 to 2026. The record is -16.1 C (3.0 F) in 1985, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Sapelo Is by year
Year	Coldest night (TNn)
1957	-6.7 C (19.9 F)
1958	-8.9 C (16.0 F)
1959	-3.9 C (25.0 F)
1960	-5.0 C (23.0 F)
1961	-5.6 C (21.9 F)
1962	-10.0 C (14.0 F)
1963	-6.7 C (19.9 F)
1964	1.1 C (34.0 F)
1965	-4.4 C (24.1 F)
1966	-10.0 C (14.0 F)
1967	-7.2 C (19.0 F)
1968	-5.0 C (23.0 F)
1971	n/a
1972	-4.4 C (24.1 F)
1973	-4.4 C (24.1 F)
1974	-4.4 C (24.1 F)
1975	-6.1 C (21.0 F)
1976	-6.1 C (21.0 F)
1977	-8.9 C (16.0 F)
1978	-5.6 C (21.9 F)
1979	-7.8 C (18.0 F)
1980	-6.7 C (19.9 F)
1981	-7.8 C (18.0 F)
1982	0.0 C (32.0 F)
1983	-12.8 C (9.0 F)
1984	-3.9 C (25.0 F)
1985	-16.1 C (3.0 F)
1986	-9.4 C (15.1 F)
1987	-2.8 C (27.0 F)
1988	-4.4 C (24.1 F)
1989	-8.9 C (16.0 F)
1990	0.0 C (32.0 F)
1991	-5.6 C (21.9 F)
1992	-4.4 C (24.1 F)
1993	-4.4 C (24.1 F)
1994	-6.1 C (21.0 F)
1995	-12.2 C (10.0 F)
1996	-7.8 C (18.0 F)
1997	-2.8 C (27.0 F)
1998	-1.1 C (30.0 F)
1999	-5.6 C (21.9 F)
2000	-6.1 C (21.0 F)
2001	-5.0 C (23.0 F)
2002	-3.9 C (25.0 F)
2003	-5.6 C (21.9 F)
2004	-4.4 C (24.1 F)
2005	-2.2 C (28.0 F)
2006	-5.6 C (21.9 F)
2007	-6.7 C (19.9 F)
2008	-3.3 C (26.1 F)
2009	-5.6 C (21.9 F)
2010	-5.6 C (21.9 F)
2011	-4.4 C (24.1 F)
2012	-3.3 C (26.1 F)
2013	-1.7 C (28.9 F)
2014	-6.7 C (19.9 F)
2015	-5.6 C (21.9 F)
2016	-1.7 C (28.9 F)
2017	-2.2 C (28.0 F)
2018	-5.0 C (23.0 F)
2019	-0.6 C (30.9 F)
2020	-2.8 C (27.0 F)
2021	-0.6 C (30.9 F)
2022	-6.1 C (21.0 F)
2023	-0.6 C (30.9 F)
2024	-2.8 C (27.0 F)
2025	-1.7 C (28.9 F)
2026	-4.4 C (24.1 F)

Wettest day (Rx1day)

The wettest day of the year at Sapelo Is, 1957 to 2026. The record is 205.0 mm (8.1 in) in 1984, marked on the chart; the median year is 99.8 mm (3.9 in).

Wettest day (Rx1day) at Sapelo Is by year
Year	Wettest day (Rx1day)
1957	80.0 mm (3.1 in)
1958	93.0 mm (3.7 in)
1959	119.4 mm (4.7 in)
1960	65.5 mm (2.6 in)
1961	81.3 mm (3.2 in)
1962	82.6 mm (3.3 in)
1963	94.0 mm (3.7 in)
1964	131.3 mm (5.2 in)
1965	103.6 mm (4.1 in)
1966	78.7 mm (3.1 in)
1967	114.8 mm (4.5 in)
1968	62.2 mm (2.4 in)
1971	n/a
1972	100.1 mm (3.9 in)
1973	74.4 mm (2.9 in)
1974	109.5 mm (4.3 in)
1975	50.8 mm (2.0 in)
1976	131.6 mm (5.2 in)
1977	87.6 mm (3.4 in)
1978	90.7 mm (3.6 in)
1979	86.6 mm (3.4 in)
1980	102.6 mm (4.0 in)
1981	113.0 mm (4.4 in)
1982	93.2 mm (3.7 in)
1983	128.0 mm (5.0 in)
1984	205.0 mm (8.1 in)
1985	86.9 mm (3.4 in)
1986	127.8 mm (5.0 in)
1987	109.2 mm (4.3 in)
1988	88.1 mm (3.5 in)
1989	115.3 mm (4.5 in)
1990	62.2 mm (2.4 in)
1991	77.0 mm (3.0 in)
1992	172.7 mm (6.8 in)
1993	86.4 mm (3.4 in)
1994	99.8 mm (3.9 in)
1995	74.9 mm (2.9 in)
1996	128.3 mm (5.1 in)
1997	102.6 mm (4.0 in)
1998	108.2 mm (4.3 in)
1999	115.6 mm (4.6 in)
2000	43.2 mm (1.7 in)
2001	101.6 mm (4.0 in)
2002	189.2 mm (7.4 in)
2003	90.9 mm (3.6 in)
2004	47.2 mm (1.9 in)
2005	117.9 mm (4.6 in)
2006	77.5 mm (3.1 in)
2007	96.5 mm (3.8 in)
2008	123.2 mm (4.9 in)
2009	92.5 mm (3.6 in)
2010	82.8 mm (3.3 in)
2011	56.1 mm (2.2 in)
2012	112.8 mm (4.4 in)
2013	116.6 mm (4.6 in)
2014	104.1 mm (4.1 in)
2015	109.7 mm (4.3 in)
2016	142.7 mm (5.6 in)
2017	44.5 mm (1.8 in)
2018	101.6 mm (4.0 in)
2019	137.9 mm (5.4 in)
2020	66.5 mm (2.6 in)
2021	127.0 mm (5.0 in)
2022	68.1 mm (2.7 in)
2023	120.7 mm (4.8 in)
2024	174.0 mm (6.9 in)
2025	72.4 mm (2.9 in)
2026	56.4 mm (2.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Sapelo Is, 1957 to 2026. The record is 296.4 mm (11.7 in) in 2005, marked on the chart; the median year is 148.3 mm (5.8 in).

Wettest five days (Rx5day) at Sapelo Is by year
Year	Wettest five days (Rx5day)
1957	145.3 mm (5.7 in)
1958	121.6 mm (4.8 in)
1959	246.6 mm (9.7 in)
1960	86.0 mm (3.4 in)
1961	138.5 mm (5.5 in)
1962	139.5 mm (5.5 in)
1963	213.9 mm (8.4 in)
1964	148.3 mm (5.8 in)
1965	209.8 mm (8.3 in)
1966	105.9 mm (4.2 in)
1967	150.3 mm (5.9 in)
1968	105.9 mm (4.2 in)
1971	n/a
1972	111.7 mm (4.4 in)
1973	173.9 mm (6.8 in)
1974	291.1 mm (11.5 in)
1975	90.7 mm (3.6 in)
1976	246.1 mm (9.7 in)
1977	173.5 mm (6.8 in)
1978	120.7 mm (4.8 in)
1979	140.9 mm (5.5 in)
1980	145.3 mm (5.7 in)
1981	217.7 mm (8.6 in)
1982	172.4 mm (6.8 in)
1983	184.6 mm (7.3 in)
1984	219.7 mm (8.6 in)
1985	147.8 mm (5.8 in)
1986	161.8 mm (6.4 in)
1987	241.5 mm (9.5 in)
1988	165.3 mm (6.5 in)
1989	165.4 mm (6.5 in)
1990	89.1 mm (3.5 in)
1991	138.2 mm (5.4 in)
1992	188.0 mm (7.4 in)
1993	109.2 mm (4.3 in)
1994	188.2 mm (7.4 in)
1995	191.6 mm (7.5 in)
1996	151.2 mm (6.0 in)
1997	176.0 mm (6.9 in)
1998	129.8 mm (5.1 in)
1999	278.8 mm (11.0 in)
2000	113.2 mm (4.5 in)
2001	144.2 mm (5.7 in)
2002	250.4 mm (9.9 in)
2003	170.9 mm (6.7 in)
2004	54.8 mm (2.2 in)
2005	296.4 mm (11.7 in)
2006	138.2 mm (5.4 in)
2007	121.4 mm (4.8 in)
2008	152.2 mm (6.0 in)
2009	180.8 mm (7.1 in)
2010	115.6 mm (4.6 in)
2011	99.7 mm (3.9 in)
2012	113.6 mm (4.5 in)
2013	238.7 mm (9.4 in)
2014	143.4 mm (5.6 in)
2015	157.7 mm (6.2 in)
2016	145.5 mm (5.7 in)
2017	85.1 mm (3.4 in)
2018	168.9 mm (6.6 in)
2019	172.2 mm (6.8 in)
2020	89.2 mm (3.5 in)
2021	138.0 mm (5.4 in)
2022	119.1 mm (4.7 in)
2023	125.8 mm (5.0 in)
2024	235.2 mm (9.3 in)
2025	173.5 mm (6.8 in)
2026	81.2 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Sapelo Is, 1957 to 2026. The record is 48 days in 1987, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Sapelo Is by year
Year	Longest dry spell (CDD)
1957	19 days
1958	25 days
1959	13 days
1960	21 days
1961	43 days
1962	18 days
1963	17 days
1964	17 days
1965	24 days
1966	33 days
1967	32 days
1968	28 days
1971	n/a
1972	21 days
1973	17 days
1974	25 days
1975	17 days
1976	23 days
1977	19 days
1978	19 days
1979	28 days
1980	24 days
1981	20 days
1982	24 days
1983	16 days
1984	25 days
1985	16 days
1986	18 days
1987	48 days
1988	27 days
1989	21 days
1990	22 days
1991	19 days
1992	24 days
1993	31 days
1994	15 days
1995	16 days
1996	30 days
1997	16 days
1998	38 days
1999	22 days
2000	31 days
2001	30 days
2002	28 days
2003	22 days
2004	32 days
2005	27 days
2006	22 days
2007	36 days
2008	19 days
2009	24 days
2010	11 days
2011	17 days
2012	35 days
2013	23 days
2014	33 days
2015	17 days
2016	25 days
2017	24 days
2018	20 days
2019	18 days
2020	20 days
2021	31 days
2022	33 days
2023	18 days
2024	26 days
2025	22 days
2026	22 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

41 years with a frost

Across 41 years with a frost, the median last spring frost at Sapelo Is falls on 26 February and the median first autumn frost on 4 December, which leaves a median of 281 days between them.

Fitted over all years, the growing season changes by +2.1 days per decade at this station.

Frost dates and growing season at Sapelo Is
Measure	Median, all years	Earliest period	Recent period (1973 to 2025)	Recent against earliest	Fitted trend
Last spring frost	26 February	n/a	27 February	n/a	-1.6 days per decade
First autumn frost	4 December	n/a	4 December	n/a	+0.4 days per decade
Growing days	281 days	n/a	281 days	n/a	+2.1 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

58 years, 1958 to 2025

A day with at least 98.3 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 193.1 mm (7.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Sapelo Is: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	98.3 mm (3.9 in)
5 years	126.8 mm (5.0 in)
10 years	144.4 mm (5.7 in)
25 years	165.1 mm (6.5 in)
50 years	179.6 mm (7.1 in)
100 years	193.1 mm (7.6 in)	Longer than the 58 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 58 years of values from 1958 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 205.0 mm (8.1 in) in 1984; 189.2 mm (7.4 in) in 2002; 174.0 mm (6.9 in) in 2024.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Sapelo Is had a mean temperature of 20.6 C (69.0 F) and 1,192.4 mm (46.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Palacios Muni AP (United States, 1,470 km away), Bay City Wtr Wks (United States, 1,437 km away) and Sugar Land (United States, 1,390 km away).

Climate twins of Sapelo Is: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Palacios Muni AP	United States	1,470 km (913 mi)	20.8 C (69.4 F)	1,102.0 mm (43.4 in)	0.67
Bay City Wtr Wks	United States	1,437 km (893 mi)	20.6 C (69.2 F)	1,213.2 mm (47.8 in)	0.67
Sugar Land	United States	1,390 km (864 mi)	20.4 C (68.8 F)	1,147.8 mm (45.2 in)	0.68

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Sapelo Is standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Sapelo Is threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).