Clarks Hill 1 W Weather Records (USC00381726)

Record envelope, standing records and threshold days for Clarks Hill 1 W (USC00381726), South Carolina, United States, with 75 years of record.

Key Facts for Clarks Hill 1 W

Clarks Hill 1 W (USC00381726) is a weather station in South Carolina, United States at 33.66 latitude and -82.19 longitude, 122 m (400 ft) above sea level.
The station reports from 1952 to 2026, 75 years of record.
1,464 records set at Clarks Hill 1 W still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Clarks Hill 1 W set a daily record precipitation of 39.1 mm (1.5 in) on 22 August 2026 (provisional).

Provisional Records

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

About the Station

Location: South Carolina, United States, 33.66 latitude, -82.19 longitude.
Elevation: 122 m (400 ft).
Period of record: 1952 to 2026, 75 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Clarks Hill 1 W. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Clarks Hill 1 W, 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)	-18.9 C (-2.0 F)	n/a	n/a
Feb	28.9 C (84.0 F)	-15.0 C (5.0 F)	n/a	n/a
Mar	32.8 C (91.0 F)	-11.1 C (12.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
May	36.7 C (98.1 F)	0.0 C (32.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	7.2 C (45.0 F)	n/a	n/a
Jul	42.8 C (109.0 F)	11.7 C (53.1 F)	n/a	n/a
Aug	42.2 C (108.0 F)	9.4 C (48.9 F)	n/a	n/a
Sep	39.4 C (102.9 F)	1.7 C (35.1 F)	n/a	n/a
Oct	36.7 C (98.1 F)	-3.9 C (25.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	27.2 C (81.0 F)	-15.0 C (5.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Clarks Hill 1 W still stand. 1996 holds the most, with 45.

Standing records at Clarks Hill 1 W by the year they were set
Year set	Standing records
1952	8
1953	20
1954	34
1955	24
1956	26
1957	23
1958	27
1959	12
1960	19
1961	31
1962	29
1963	22
1964	25
1965	12
1966	11
1967	32
1968	17
1969	25
1970	36
1971	24
1972	10
1973	14
1974	31
1975	15
1976	28
1977	21
1978	13
1979	15
1980	23
1981	23
1982	14
1983	16
1984	23
1985	24
1986	25
1987	13
1988	16
1989	31
1990	19
1991	25
1992	12
1993	37
1994	13
1995	19
1996	45
1997	40
1998	19
1999	38
2000	22
2001	11
2002	15
2003	19
2004	20
2005	8
2006	9
2007	21
2009	5
2010	25
2011	12
2012	24
2013	20
2014	15
2015	23
2016	12
2017	24
2018	28
2019	27
2020	27
2021	16
2022	2

All-Time Record Progression

6 new records

6 all-time records were set at Clarks Hill 1 W between 22 August 1983 and 12 October 1990. Each dot is a new record.

When Clarks Hill 1 W set new all-time records
Date	Kind	Detail
1983-08-22	Record high maximum temperature	Record high maximum temperature 42.2 C (108.0 F)
1985-01-21	Record low minimum temperature	Record low minimum temperature -18.9 C (-2.0 F)
1985-10-02	Record daily precipitation	Record daily precipitation 200.4 mm (7.9 in)
1986-01-28	Record low maximum temperature	Record low maximum temperature -4.4 C (24.1 F)
1987-07-29	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
1990-10-12	Record daily precipitation	Record daily precipitation 238.8 mm (9.4 in)

Wettest Day of Each Month

Oct: 238.8 mm (9.4 in)

The wettest day on record for each calendar month at Clarks Hill 1 W. The most was 238.8 mm (9.4 in) on 12 October 1990.

Record daily precipitation for each month at Clarks Hill 1 W
Month	Record daily precipitation (mm)	Date
Jan	70.4 mm (2.8 in)	30 January 1960
Feb	78.7 mm (3.1 in)	11 February 1981
Mar	99.1 mm (3.9 in)	7 March 1996
Apr	107.2 mm (4.2 in)	7 April 2022
May	111.8 mm (4.4 in)	3 May 1964
Jun	101.6 mm (4.0 in)	4 June 2015
Jul	133.9 mm (5.3 in)	15 July 1982
Aug	154.9 mm (6.1 in)	30 August 1964
Sep	180.3 mm (7.1 in)	4 September 1998
Oct	238.8 mm (9.4 in)	12 October 1990
Nov	141.0 mm (5.6 in)	11 November 2009
Dec	71.6 mm (2.8 in)	12 December 1976

Period of Record Coverage

1952 to 2022

70 years of record at Clarks Hill 1 W, 1952 to 2022. 7 years have data for under 90 percent of days and are left out of rankings: 1952, 1987, 1996, 1999, 2009, 2016, 2022.

Days with data per year at Clarks Hill 1 W
Year	Days with data	Share of year	Complete
1952	143	39%	No
1953	365	100%	Yes
1954	362	99%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	364	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	364	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	363	99%	Yes
1969	365	100%	Yes
1970	361	99%	Yes
1971	359	98%	Yes
1972	358	98%	Yes
1973	357	98%	Yes
1974	363	99%	Yes
1975	350	96%	Yes
1976	357	98%	Yes
1977	360	99%	Yes
1978	359	98%	Yes
1979	360	99%	Yes
1980	359	98%	Yes
1981	359	98%	Yes
1982	356	98%	Yes
1983	360	99%	Yes
1984	361	99%	Yes
1985	361	99%	Yes
1986	360	99%	Yes
1987	328	90%	No
1988	357	98%	Yes
1989	358	98%	Yes
1990	359	98%	Yes
1991	360	99%	Yes
1992	359	98%	Yes
1993	360	99%	Yes
1994	355	97%	Yes
1995	355	97%	Yes
1996	325	89%	No
1997	337	92%	Yes
1998	342	94%	Yes
1999	328	90%	No
2000	346	95%	Yes
2001	343	94%	Yes
2002	344	94%	Yes
2003	353	97%	Yes
2004	355	97%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	364	100%	Yes
2009	220	60%	No
2010	364	100%	Yes
2011	356	98%	Yes
2012	358	98%	Yes
2013	357	98%	Yes
2014	349	96%	Yes
2015	334	92%	Yes
2016	323	88%	No
2017	358	98%	Yes
2018	361	99%	Yes
2019	357	98%	Yes
2020	365	100%	Yes
2021	365	100%	Yes
2022	51	14%	No

Latest Records

Latest records at Clarks Hill 1 W
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 August 2026	Clarks Hill 1 W, US	daily rain (Provisional)	39.1 mm (1.5 in)	2.0 mm (0.08 in)	32 years	17 of 100 (Routine)
15 August 2026	Clarks Hill 1 W, US	daily rain	53.3 mm (2.1 in)	29.7 mm (1.2 in)	35 years	36 of 100 (Notable)
17 March 2026	Clarks Hill 1 W, US	daily rain	31.5 mm (1.2 in)	0.5 mm (0.02 in)	12 years	10 of 100 (Routine)
27 February 2026	Clarks Hill 1 W, US	daily rain	48.3 mm (1.9 in)	18.3 mm (0.7 in)	22 years	27 of 100 (Routine)
23 August 2025	Clarks Hill 1 W, US	daily rain	31.8 mm (1.3 in)	13.0 mm (0.5 in)	55 years	31 of 100 (Routine)
8 April 2025	Clarks Hill 1 W, US	daily rain	74.4 mm (2.9 in)	5.3 mm (0.21 in)	52 years	25 of 100 (Routine)
11 December 2024	Clarks Hill 1 W, US	daily rain	60.7 mm (2.4 in)	38.3 mm (1.5 in)	55 years	54 of 100 (Notable)
7 November 2024	Clarks Hill 1 W, US	daily rain	36.1 mm (1.4 in)	10.7 mm (0.4 in)	49 years	29 of 100 (Routine)
5 May 2024	Clarks Hill 1 W, US	daily rain	46.7 mm (1.8 in)	9.9 mm (0.39 in)	11 years	16 of 100 (Routine)
12 February 2024	Clarks Hill 1 W, US	daily rain	30.2 mm (1.2 in)	5.6 mm (0.22 in)	2 years	11 of 100 (Routine)
10 December 2023	Clarks Hill 1 W, US	daily rain	23.1 mm (0.9 in)	4.8 mm (0.19 in)	53 years	20 of 100 (Routine)
10 September 2023	Clarks Hill 1 W, US	daily rain	36.1 mm (1.4 in)	1.6 mm (0.06 in)	65 years	26 of 100 (Routine)
28 August 2023	Clarks Hill 1 W, US	daily rain	53.3 mm (2.1 in)	14.9 mm (0.6 in)	36 years	27 of 100 (Routine)
21 May 2023	Clarks Hill 1 W, US	daily rain	29.5 mm (1.2 in)	1.1 mm (0.04 in)	42 years	19 of 100 (Routine)
27 March 2023	Clarks Hill 1 W, US	daily rain	80.5 mm (3.2 in)	14.0 mm (0.6 in)	17 years	21 of 100 (Routine)
26 January 2023	Clarks Hill 1 W, US	daily rain	31.8 mm (1.3 in)	4.9 mm (0.19 in)	52 years	25 of 100 (Routine)
22 January 2023	Clarks Hill 1 W, US	daily rain	50.0 mm (2.0 in)	10.4 mm (0.4 in)	36 years	25 of 100 (Routine)
7 April 2022	Clarks Hill 1 W, US	monthly rain	107.2 mm (4.2 in)	7.9 mm (0.31 in)	48 years	36 of 100 (Notable)
6 April 2022	Clarks Hill 1 W, US	daily rain	77.7 mm (3.1 in)	49.0 mm (1.9 in)	4 years	41 of 100 (Notable)
4 February 2022	Clarks Hill 1 W, US	daily high min	13.9 C (57.0 F)	1.1 C (2.0 F)	32 years	18 of 100 (Routine)

Climate Trend

64 complete years, 1953 to 2021

One stripe for each of 64 complete years at Clarks Hill 1 W, 1953 to 2021. Blue stripes are years cooler than the station's own mean of 17.0 C (62.6 F); red stripes are warmer. The coolest year was 1997, at 15.5 C (60.0 F), and the warmest was 2017, at 18.8 C (65.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).

Annual mean temperature at Clarks Hill 1 W as warming stripes, 1953 to 2021
Year	Annual mean temperature	Difference from the station mean
1953	17.8 C	+0.77 C
1954	17.5 C	+0.55 C
1955	17.3 C	+0.27 C
1956	17.4 C	+0.40 C
1957	17.2 C	+0.22 C
1958	16.0 C	-0.97 C
1959	16.9 C	-0.09 C
1960	16.4 C	-0.60 C
1961	16.7 C	-0.34 C
1962	16.7 C	-0.34 C
1963	16.4 C	-0.61 C
1964	16.6 C	-0.35 C
1965	16.9 C	-0.07 C
1966	16.2 C	-0.77 C
1967	16.3 C	-0.72 C
1968	16.2 C	-0.75 C
1969	15.7 C	-1.34 C
1970	16.2 C	-0.80 C
1971	17.0 C	+0.03 C
1972	16.9 C	-0.05 C
1973	17.2 C	+0.16 C
1974	17.1 C	+0.15 C
1975	17.2 C	+0.19 C
1976	16.2 C	-0.79 C
1977	16.7 C	-0.33 C
1978	16.5 C	-0.49 C
1979	16.4 C	-0.58 C
1980	16.6 C	-0.39 C
1981	16.4 C	-0.61 C
1982	17.3 C	+0.27 C
1983	16.2 C	-0.75 C
1984	17.0 C	-0.03 C
1985	17.0 C	+0.05 C
1986	17.8 C	+0.76 C
1988	16.2 C	-0.80 C
1989	16.8 C	-0.22 C
1990	18.4 C	+1.44 C
1991	17.4 C	+0.45 C
1992	15.7 C	-1.27 C
1993	16.9 C	-0.07 C
1994	17.1 C	+0.09 C
1995	16.3 C	-0.65 C
1997	15.5 C	-1.46 C
1998	17.6 C	+0.62 C
1999	16.5 C	-0.45 C
2000	16.0 C	-1.01 C
2001	16.8 C	-0.16 C
2002	16.9 C	-0.07 C
2003	15.8 C	-1.18 C
2004	17.1 C	+0.10 C
2005	17.4 C	+0.36 C
2006	17.6 C	+0.64 C
2007	17.7 C	+0.74 C
2010	17.2 C	+0.23 C
2011	18.0 C	+0.96 C
2012	18.6 C	+1.61 C
2013	17.1 C	+0.11 C
2014	17.0 C	+0.05 C
2015	18.1 C	+1.10 C
2017	18.8 C	+1.77 C
2018	18.2 C	+1.22 C
2019	18.7 C	+1.68 C
2020	18.4 C	+1.41 C
2021	17.8 C	+0.84 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1953 to 2021. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Clarks Hill 1 W
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.5) per decade	1953 to 2021	64	Rise
Mean daily maximum	0.2 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1953 to 2021	64	Rise
Mean daily minimum	0.18 C (0.02 to 0.34) per decade	0.33 F (0.04 to 0.62) per decade	1953 to 2021	64	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

1952 to 2026

Yearly extremes at Clarks Hill 1 W: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1987	37.8 C (100.0 F)	70
Coldest night (TNn)	-18.9 C (-2.0 F)	1985	-9.7 C (14.5 F)	70
Wettest day (Rx1day)	238.8 mm (9.4 in)	1990	72.0 mm (2.8 in)	74
Wettest five days (Rx5day)	291.4 mm (11.5 in)	1990	114.1 mm (4.5 in)	74
Longest dry spell (CDD)	43 days	2005	21 days	74

Hottest day (TXx)

The hottest day of the year at Clarks Hill 1 W, 1952 to 2026. The record is 42.8 C (109.0 F) in 1987, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Clarks Hill 1 W by year
Year	Hottest day (TXx)
1952	37.2 C (99.0 F)
1953	37.8 C (100.0 F)
1954	38.9 C (102.0 F)
1955	36.1 C (97.0 F)
1956	38.9 C (102.0 F)
1957	37.2 C (99.0 F)
1958	37.8 C (100.0 F)
1959	38.3 C (100.9 F)
1960	36.1 C (97.0 F)
1961	35.6 C (96.1 F)
1962	37.8 C (100.0 F)
1963	36.7 C (98.1 F)
1964	36.7 C (98.1 F)
1965	35.6 C (96.1 F)
1966	37.2 C (99.0 F)
1967	35.0 C (95.0 F)
1968	40.0 C (104.0 F)
1969	37.8 C (100.0 F)
1970	40.0 C (104.0 F)
1971	37.2 C (99.0 F)
1972	36.1 C (97.0 F)
1973	35.0 C (95.0 F)
1974	36.1 C (97.0 F)
1975	37.8 C (100.0 F)
1976	37.2 C (99.0 F)
1977	40.0 C (104.0 F)
1978	38.3 C (100.9 F)
1979	37.2 C (99.0 F)
1980	41.1 C (106.0 F)
1981	37.8 C (100.0 F)
1982	35.0 C (95.0 F)
1983	42.2 C (108.0 F)
1984	37.2 C (99.0 F)
1985	39.4 C (102.9 F)
1986	41.1 C (106.0 F)
1987	42.8 C (109.0 F)
1988	37.8 C (100.0 F)
1989	36.7 C (98.1 F)
1990	41.1 C (106.0 F)
1991	37.8 C (100.0 F)
1992	37.8 C (100.0 F)
1993	41.1 C (106.0 F)
1994	36.1 C (97.0 F)
1995	39.4 C (102.9 F)
1996	37.8 C (100.0 F)
1997	40.0 C (104.0 F)
1998	39.4 C (102.9 F)
1999	41.7 C (107.1 F)
2000	39.4 C (102.9 F)
2001	36.7 C (98.1 F)
2002	38.9 C (102.0 F)
2003	38.3 C (100.9 F)
2004	37.8 C (100.0 F)
2005	37.8 C (100.0 F)
2006	38.3 C (100.9 F)
2007	40.6 C (105.1 F)
2009	37.2 C (99.0 F)
2010	38.3 C (100.9 F)
2011	38.9 C (102.0 F)
2012	41.7 C (107.1 F)
2013	36.1 C (97.0 F)
2014	36.7 C (98.1 F)
2015	38.3 C (100.9 F)
2016	38.3 C (100.9 F)
2017	36.1 C (97.0 F)
2018	36.1 C (97.0 F)
2019	37.2 C (99.0 F)
2020	38.3 C (100.9 F)
2021	36.1 C (97.0 F)
2022	29.4 C (84.9 F)
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Clarks Hill 1 W, 1952 to 2026. The record is -18.9 C (-2.0 F) in 1985, marked on the chart; the median year is -9.7 C (14.5 F).

Coldest night (TNn) at Clarks Hill 1 W by year
Year	Coldest night (TNn)
1952	-5.0 C (23.0 F)
1953	-10.6 C (12.9 F)
1954	-5.6 C (21.9 F)
1955	-8.9 C (16.0 F)
1956	-7.2 C (19.0 F)
1957	-10.6 C (12.9 F)
1958	-12.8 C (9.0 F)
1959	-11.7 C (10.9 F)
1960	-8.9 C (16.0 F)
1961	-8.9 C (16.0 F)
1962	-15.0 C (5.0 F)
1963	-10.0 C (14.0 F)
1964	-10.6 C (12.9 F)
1965	-6.7 C (19.9 F)
1966	-15.0 C (5.0 F)
1967	-11.7 C (10.9 F)
1968	-7.8 C (18.0 F)
1969	-12.8 C (9.0 F)
1970	-16.1 C (3.0 F)
1971	-7.8 C (18.0 F)
1972	-10.6 C (12.9 F)
1973	-8.9 C (16.0 F)
1974	-8.3 C (17.1 F)
1975	-10.0 C (14.0 F)
1976	-10.6 C (12.9 F)
1977	-13.9 C (7.0 F)
1978	-12.2 C (10.0 F)
1979	-11.1 C (12.0 F)
1980	-10.0 C (14.0 F)
1981	-10.6 C (12.9 F)
1982	-14.4 C (6.1 F)
1983	-12.8 C (9.0 F)
1984	-7.8 C (18.0 F)
1985	-18.9 C (-2.0 F)
1986	-11.7 C (10.9 F)
1987	-7.2 C (19.0 F)
1988	-11.1 C (12.0 F)
1989	-11.7 C (10.9 F)
1990	-6.1 C (21.0 F)
1991	-8.3 C (17.1 F)
1992	-8.3 C (17.1 F)
1993	-9.4 C (15.1 F)
1994	-12.8 C (9.0 F)
1995	-11.7 C (10.9 F)
1996	-15.0 C (5.0 F)
1997	-10.0 C (14.0 F)
1998	-7.8 C (18.0 F)
1999	-11.1 C (12.0 F)
2000	-11.7 C (10.9 F)
2001	-9.4 C (15.1 F)
2002	-9.4 C (15.1 F)
2003	-11.7 C (10.9 F)
2004	-15.0 C (5.0 F)
2005	-10.6 C (12.9 F)
2006	-8.9 C (16.0 F)
2007	-7.2 C (19.0 F)
2009	-1.1 C (30.0 F)
2010	-7.2 C (19.0 F)
2011	-6.7 C (19.9 F)
2012	-4.4 C (24.1 F)
2013	-3.9 C (25.0 F)
2014	-10.0 C (14.0 F)
2015	-8.9 C (16.0 F)
2016	-3.9 C (25.0 F)
2017	-3.9 C (25.0 F)
2018	-8.3 C (17.1 F)
2019	-3.3 C (26.1 F)
2020	-7.2 C (19.0 F)
2021	-2.8 C (27.0 F)
2022	-4.4 C (24.1 F)
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Clarks Hill 1 W, 1952 to 2026. The record is 238.8 mm (9.4 in) in 1990, marked on the chart; the median year is 72.0 mm (2.8 in).

Wettest day (Rx1day) at Clarks Hill 1 W by year
Year	Wettest day (Rx1day)
1952	47.5 mm (1.9 in)
1953	70.4 mm (2.8 in)
1954	59.7 mm (2.4 in)
1955	71.9 mm (2.8 in)
1956	85.1 mm (3.4 in)
1957	85.1 mm (3.4 in)
1958	67.8 mm (2.7 in)
1959	72.1 mm (2.8 in)
1960	73.7 mm (2.9 in)
1961	67.3 mm (2.6 in)
1962	70.4 mm (2.8 in)
1963	96.3 mm (3.8 in)
1964	154.9 mm (6.1 in)
1965	88.9 mm (3.5 in)
1966	53.8 mm (2.1 in)
1967	77.5 mm (3.1 in)
1968	58.7 mm (2.3 in)
1969	78.7 mm (3.1 in)
1970	100.3 mm (3.9 in)
1971	81.5 mm (3.2 in)
1972	68.8 mm (2.7 in)
1973	69.1 mm (2.7 in)
1974	99.3 mm (3.9 in)
1975	61.7 mm (2.4 in)
1976	81.3 mm (3.2 in)
1977	63.8 mm (2.5 in)
1978	51.1 mm (2.0 in)
1979	64.8 mm (2.6 in)
1980	71.1 mm (2.8 in)
1981	83.3 mm (3.3 in)
1982	133.9 mm (5.3 in)
1983	81.8 mm (3.2 in)
1984	57.2 mm (2.3 in)
1985	200.4 mm (7.9 in)
1986	83.1 mm (3.3 in)
1987	59.9 mm (2.4 in)
1988	70.4 mm (2.8 in)
1989	75.2 mm (3.0 in)
1990	238.8 mm (9.4 in)
1991	61.0 mm (2.4 in)
1992	71.9 mm (2.8 in)
1993	89.7 mm (3.5 in)
1994	68.6 mm (2.7 in)
1995	86.6 mm (3.4 in)
1996	99.1 mm (3.9 in)
1997	95.0 mm (3.7 in)
1998	180.3 mm (7.1 in)
1999	59.4 mm (2.3 in)
2000	54.6 mm (2.1 in)
2001	99.1 mm (3.9 in)
2002	67.8 mm (2.7 in)
2003	68.8 mm (2.7 in)
2004	93.7 mm (3.7 in)
2005	66.5 mm (2.6 in)
2006	64.0 mm (2.5 in)
2007	55.9 mm (2.2 in)
2009	141.0 mm (5.6 in)
2010	54.4 mm (2.1 in)
2011	50.3 mm (2.0 in)
2012	51.6 mm (2.0 in)
2013	83.6 mm (3.3 in)
2014	57.9 mm (2.3 in)
2015	101.6 mm (4.0 in)
2016	40.6 mm (1.6 in)
2017	73.7 mm (2.9 in)
2018	63.5 mm (2.5 in)
2019	90.7 mm (3.6 in)
2020	80.5 mm (3.2 in)
2021	48.8 mm (1.9 in)
2022	107.2 mm (4.2 in)
2023	80.5 mm (3.2 in)
2024	84.6 mm (3.3 in)
2025	74.4 mm (2.9 in)
2026	53.3 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Clarks Hill 1 W, 1952 to 2026. The record is 291.4 mm (11.5 in) in 1990, marked on the chart; the median year is 114.1 mm (4.5 in).

Wettest five days (Rx5day) at Clarks Hill 1 W by year
Year	Wettest five days (Rx5day)
1952	47.5 mm (1.9 in)
1953	106.0 mm (4.2 in)
1954	68.1 mm (2.7 in)
1955	112.5 mm (4.4 in)
1956	148.7 mm (5.9 in)
1957	149.8 mm (5.9 in)
1958	137.4 mm (5.4 in)
1959	120.4 mm (4.7 in)
1960	121.4 mm (4.8 in)
1961	122.0 mm (4.8 in)
1962	135.2 mm (5.3 in)
1963	115.7 mm (4.6 in)
1964	217.7 mm (8.6 in)
1965	111.7 mm (4.4 in)
1966	66.1 mm (2.6 in)
1967	150.4 mm (5.9 in)
1968	101.2 mm (4.0 in)
1969	120.1 mm (4.7 in)
1970	140.4 mm (5.5 in)
1971	130.6 mm (5.1 in)
1972	146.1 mm (5.8 in)
1973	83.3 mm (3.3 in)
1974	111.0 mm (4.4 in)
1975	103.6 mm (4.1 in)
1976	156.2 mm (6.1 in)
1977	88.7 mm (3.5 in)
1978	65.5 mm (2.6 in)
1979	104.2 mm (4.1 in)
1980	123.6 mm (4.9 in)
1981	142.0 mm (5.6 in)
1982	145.1 mm (5.7 in)
1983	104.2 mm (4.1 in)
1984	60.0 mm (2.4 in)
1985	265.5 mm (10.5 in)
1986	156.3 mm (6.2 in)
1987	93.7 mm (3.7 in)
1988	116.4 mm (4.6 in)
1989	88.1 mm (3.5 in)
1990	291.4 mm (11.5 in)
1991	99.4 mm (3.9 in)
1992	81.8 mm (3.2 in)
1993	93.3 mm (3.7 in)
1994	97.3 mm (3.8 in)
1995	144.5 mm (5.7 in)
1996	114.4 mm (4.5 in)
1997	159.0 mm (6.3 in)
1998	189.7 mm (7.5 in)
1999	79.5 mm (3.1 in)
2000	127.2 mm (5.0 in)
2001	119.2 mm (4.7 in)
2002	116.0 mm (4.6 in)
2003	117.2 mm (4.6 in)
2004	110.8 mm (4.4 in)
2005	115.2 mm (4.5 in)
2006	79.6 mm (3.1 in)
2007	84.9 mm (3.3 in)
2009	157.3 mm (6.2 in)
2010	98.6 mm (3.9 in)
2011	109.5 mm (4.3 in)
2012	87.1 mm (3.4 in)
2013	174.0 mm (6.9 in)
2014	68.3 mm (2.7 in)
2015	96.6 mm (3.8 in)
2016	70.1 mm (2.8 in)
2017	86.9 mm (3.4 in)
2018	118.9 mm (4.7 in)
2019	134.1 mm (5.3 in)
2020	154.2 mm (6.1 in)
2021	90.4 mm (3.6 in)
2022	184.9 mm (7.3 in)
2023	113.7 mm (4.5 in)
2024	84.6 mm (3.3 in)
2025	80.4 mm (3.2 in)
2026	82.1 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Clarks Hill 1 W, 1952 to 2026. The record is 43 days in 2005, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Clarks Hill 1 W by year
Year	Longest dry spell (CDD)
1952	31 days
1953	39 days
1954	35 days
1955	20 days
1956	21 days
1957	18 days
1958	23 days
1959	17 days
1960	39 days
1961	32 days
1962	28 days
1963	27 days
1964	28 days
1965	20 days
1966	16 days
1967	19 days
1968	20 days
1969	18 days
1970	21 days
1971	19 days
1972	12 days
1973	30 days
1974	19 days
1975	19 days
1976	30 days
1977	18 days
1978	24 days
1979	13 days
1980	24 days
1981	23 days
1982	18 days
1983	19 days
1984	25 days
1985	17 days
1986	21 days
1987	26 days
1988	17 days
1989	19 days
1990	19 days
1991	22 days
1992	19 days
1993	20 days
1994	15 days
1995	28 days
1996	23 days
1997	20 days
1998	26 days
1999	22 days
2000	28 days
2001	39 days
2002	17 days
2003	15 days
2004	15 days
2005	43 days
2006	22 days
2007	25 days
2009	10 days
2010	25 days
2011	18 days
2012	17 days
2013	24 days
2014	21 days
2015	15 days
2016	35 days
2017	13 days
2018	18 days
2019	29 days
2020	16 days
2021	21 days
2022	19 days
2023	23 days
2024	28 days
2025	11 days
2026	29 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

64 years with a frost

Across 64 years with a frost, the median last spring frost at Clarks Hill 1 W falls on 26 March and the median first autumn frost on 7 November, which leaves a median of 222 days between them.

In 1988 to 2021 the median growing season was 229 days. That is 12 days more than in 1953 to 1982.

Fitted over all years, the growing season changes by +5.4 days per decade at this station.

Frost dates and growing season at Clarks Hill 1 W
Measure	Median, all years	Earliest period (1953 to 1982)	Recent period (1988 to 2021)	Recent against earliest	Fitted trend
Last spring frost	26 March	29 March	23 March	6 days earlier	-2.7 days per decade
First autumn frost	7 November	1 November	12 November	11 days later	+2.7 days per decade
Growing days	222 days	217 days	229 days	12 days more	+5.4 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

64 years, 1953 to 2023

A day with at least 73.3 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 220.6 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Clarks Hill 1 W: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	73.3 mm (2.9 in)
5 years	96.3 mm (3.8 in)
10 years	116.6 mm (4.6 in)
25 years	149.9 mm (5.9 in)
50 years	181.6 mm (7.1 in)
100 years	220.6 mm (8.7 in)	Longer than the 64 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, 64 years of values from 1953 to 2023.

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: 238.8 mm (9.4 in) in 1990; 200.4 mm (7.9 in) in 1985; 180.3 mm (7.1 in) in 1998.

Station Changes

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

Climate Twins

2004 to 2021 against 1961 to 1990

Over 2004 to 2021, Clarks Hill 1 W had a mean temperature of 17.8 C (64.1 F) and 1,089.1 mm (42.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Hawkinsville (United States, 194 km away), Macon Middle Ga Rgnl AP (United States, 174 km away) and Dublin (United States, 140 km away).

Climate twins of Clarks Hill 1 W: stations whose 1961 to 1990 climate is closest to its 2004 to 2021 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Hawkinsville	United States	194 km (121 mi)	18.0 C (64.5 F)	1,114.3 mm (43.9 in)	0.52
Macon Middle Ga Rgnl AP	United States	174 km (108 mi)	18.1 C (64.6 F)	1,134.5 mm (44.7 in)	0.54
Dublin	United States	140 km (87 mi)	17.8 C (64.0 F)	1,177.6 mm (46.4 in)	0.55

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 Clarks Hill 1 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Clarks Hill 1 W 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).