Jamestown Weather Records (SF001485170)

Record envelope, standing records and threshold days for Jamestown (SF001485170), South Africa, with 148 years of record.

Key Facts for Jamestown

Jamestown (SF001485170) is a weather station in South Africa at -31.12 latitude and 26.80 longitude, 1,603 m (5,259 ft) above sea level.
The station reports from 1879 to 2026, 148 years of record.
1,464 records set at Jamestown still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Jamestown set a daily record precipitation of 42.0 mm (1.7 in) on 3 October 2026 (provisional).

Provisional Records

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

About the Station

Location: South Africa, -31.12 latitude, 26.80 longitude.
Elevation: 1,603 m (5,259 ft).
Period of record: 1879 to 2026, 148 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

17 days at or beyond a record

The band shows the record high and record low for each calendar day at Jamestown. The lines show the 2026 daily maximum and minimum. 17 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Jamestown, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.7 C (101.7 F)	4.0 C (39.2 F)	33.8 C (92.8 F)	6.6 C (43.9 F)
Feb	36.3 C (97.3 F)	2.5 C (36.5 F)	33.8 C (92.8 F)	7.6 C (45.7 F)
Mar	34.3 C (93.7 F)	3.3 C (37.9 F)	28.4 C (83.1 F)	6.4 C (43.5 F)
Apr	29.4 C (84.9 F)	-3.1 C (26.4 F)	27.6 C (81.7 F)	-2.0 C (28.4 F)
May	25.6 C (78.1 F)	-4.8 C (23.4 F)	19.7 C (67.5 F)	-0.6 C (30.9 F)
Jun	22.1 C (71.8 F)	-11.2 C (11.8 F)	17.3 C (63.1 F)	-1.1 C (30.0 F)
Jul	20.9 C (69.6 F)	-12.6 C (9.3 F)	18.4 C (65.1 F)	-4.3 C (24.3 F)
Aug	26.1 C (79.0 F)	-8.9 C (16.0 F)	23.3 C (73.9 F)	-3.6 C (25.5 F)
Sep	31.5 C (88.7 F)	-4.9 C (23.2 F)	23.2 C (73.8 F)	3.1 C (37.6 F)
Oct	33.9 C (93.0 F)	-2.4 C (27.7 F)	26.6 C (79.9 F)	5.1 C (41.2 F)
Nov	35.9 C (96.6 F)	-1.7 C (28.9 F)	n/a	n/a
Dec	36.1 C (97.0 F)	4.0 C (39.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Jamestown still stand. 2024 holds the most, with 182.

All-Time Record Progression

1 new records

1 all-time records were set at Jamestown between 8 March 1976 and 8 March 1976. Each dot is a new record.

Wettest Day of Each Month

Mar: 115.5 mm (4.5 in)

The wettest day on record for each calendar month at Jamestown. The most was 115.5 mm (4.5 in) on 8 March 1976.

Record daily precipitation for each month at Jamestown
Month	Record daily precipitation (mm)	Date
Jan	74.9 mm (2.9 in)	2 January 1934
Feb	108.0 mm (4.3 in)	23 February 1988
Mar	115.5 mm (4.5 in)	8 March 1976
Apr	59.2 mm (2.3 in)	9 April 1943
May	48.3 mm (1.9 in)	4 May 1946
Jun	51.1 mm (2.0 in)	26 June 1899
Jul	60.0 mm (2.4 in)	24 July 1983
Aug	58.4 mm (2.3 in)	9 August 1896
Sep	84.3 mm (3.3 in)	18 September 1944
Oct	79.0 mm (3.1 in)	20 October 1991
Nov	73.0 mm (2.9 in)	30 November 1977
Dec	90.0 mm (3.5 in)	8 December 1978

Period of Record Coverage

1997 to 2026

15 years of record at Jamestown, 1997 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1997, 2013, 2018, 2019, 2020, 2022, 2023, 2024 and others.

Days with data per year at Jamestown
Year	Days with data	Share of year	Complete
1997	7	2%	No
2013	21	6%	No
2014	360	99%	Yes
2015	344	94%	Yes
2016	357	98%	Yes
2017	357	98%	Yes
2018	290	79%	No
2019	303	83%	No
2020	329	90%	No
2021	334	92%	Yes
2022	219	60%	No
2023	212	58%	No
2024	325	89%	No
2025	306	84%	No
2026	237	65%	No

Latest Records

Latest records at Jamestown
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 October 2026	Jamestown, ZA	daily rain (Provisional)	42.0 mm (1.7 in)	3.1 mm (0.12 in)	75 years	35 of 100 (Notable)
26 September 2026	Jamestown, ZA	daily rain (Provisional)	64.0 mm (2.5 in)	1.3 mm (0.05 in)	133 years	41 of 100 (Notable)
4 September 2026	Jamestown, ZA	daily rain (Provisional)	52.0 mm (2.0 in)	22.0 mm (0.9 in)	97 years	57 of 100 (Notable)
4 March 2022	Jamestown, ZA	daily rain	38.1 mm (1.5 in)	12.1 mm (0.5 in)	47 years	34 of 100 (Routine)
14 April 2020	Jamestown, ZA	daily rain	19.1 mm (0.8 in)	1.8 mm (0.07 in)	127 years	20 of 100 (Routine)
1 April 2020	Jamestown, ZA	daily rain	19.1 mm (0.8 in)	2.6 mm (0.10 in)	56 years	20 of 100 (Routine)
15 April 2019	Jamestown, ZA	daily rain	51.1 mm (2.0 in)	14.5 mm (0.6 in)	84 years	50 of 100 (Notable)
7 September 2018	Jamestown, ZA	daily rain (Tie)	19.1 mm (0.8 in)	tie	129 years	10 of 100 (Routine)
5 October 2017	Jamestown, ZA	daily rain	29.0 mm (1.1 in)	1.0 mm (0.04 in)	31 years	20 of 100 (Routine)
4 February 2017	Jamestown, ZA	daily rain	41.9 mm (1.6 in)	9.4 mm (0.37 in)	65 years	37 of 100 (Notable)
12 November 2014	Jamestown, ZA	daily rain	38.1 mm (1.5 in)	6.9 mm (0.27 in)	92 years	43 of 100 (Notable)
11 March 2014	Jamestown, ZA	daily rain	51.1 mm (2.0 in)	13.6 mm (0.5 in)	51 years	36 of 100 (Notable)
14 October 1997	Jamestown, ZA	daily rain	26.5 mm (1.0 in)	2.5 mm (0.10 in)	6 years	13 of 100 (Routine)
5 August 1997	Jamestown, ZA	daily rain	16.0 mm (0.6 in)	8.4 mm (0.33 in)	96 years	20 of 100 (Routine)
22 April 1997	Jamestown, ZA	daily rain	40.0 mm (1.6 in)	10.0 mm (0.4 in)	38 years	31 of 100 (Routine)
4 August 1996	Jamestown, ZA	daily rain	24.0 mm (0.9 in)	4.2 mm (0.17 in)	59 years	20 of 100 (Routine)
25 July 1996	Jamestown, ZA	daily rain	25.0 mm (1.0 in)	9.0 mm (0.35 in)	13 years	22 of 100 (Routine)
17 December 1995	Jamestown, ZA	daily rain	48.0 mm (1.9 in)	27.5 mm (1.1 in)	33 years	46 of 100 (Notable)
6 May 1995	Jamestown, ZA	daily rain	29.5 mm (1.2 in)	14.3 mm (0.6 in)	88 years	51 of 100 (Notable)
21 October 1993	Jamestown, ZA	daily rain	24.0 mm (0.9 in)	1.0 mm (0.04 in)	2 years	11 of 100 (Routine)

Extremes by Year

1879 to 2026

Yearly extremes at Jamestown: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.7 C (101.7 F)	2016	33.8 C (92.8 F)	15
Coldest night (TNn)	-12.6 C (9.3 F)	2014	-8.0 C (17.6 F)	15
Wettest day (Rx1day)	115.5 mm (4.5 in)	1976	43.4 mm (1.7 in)	132
Wettest five days (Rx5day)	220.5 mm (8.7 in)	1976	70.2 mm (2.8 in)	130
Longest dry spell (CDD)	151 days	1903	54 days	132

Hottest day (TXx)

The hottest day of the year at Jamestown, 1879 to 2026. The record is 38.7 C (101.7 F) in 2016, marked on the chart; the median year is 33.8 C (92.8 F).

Hottest day (TXx) at Jamestown by year
Year	Hottest day (TXx)
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	23.8 C (74.8 F)
2013	31.9 C (89.4 F)
2014	33.8 C (92.8 F)
2015	35.7 C (96.3 F)
2016	38.7 C (101.7 F)
2017	34.2 C (93.6 F)
2018	34.3 C (93.7 F)
2019	35.2 C (95.4 F)
2020	33.1 C (91.6 F)
2021	31.1 C (88.0 F)
2022	31.0 C (87.8 F)
2023	35.9 C (96.6 F)
2024	36.3 C (97.3 F)
2025	33.8 C (92.8 F)
2026	33.8 C (92.8 F)

Coldest night (TNn)

The coldest night of the year at Jamestown, 1879 to 2026. The record is -12.6 C (9.3 F) in 2014, marked on the chart; the median year is -8.0 C (17.6 F).

Coldest night (TNn) at Jamestown by year
Year	Coldest night (TNn)
1879	n/a
1880	n/a
1881	n/a
1882	n/a
1883	n/a
1884	n/a
1885	n/a
1886	n/a
1887	n/a
1888	n/a
1889	n/a
1890	n/a
1891	n/a
1892	n/a
1893	n/a
1894	n/a
1895	n/a
1896	n/a
1897	n/a
1898	n/a
1899	n/a
1900	n/a
1901	n/a
1902	n/a
1903	n/a
1904	n/a
1905	n/a
1906	n/a
1907	n/a
1908	n/a
1909	n/a
1910	n/a
1911	n/a
1912	n/a
1913	n/a
1914	n/a
1915	n/a
1916	n/a
1917	n/a
1918	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	n/a
1970	n/a
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	-8.5 C (16.7 F)
2013	7.5 C (45.5 F)
2014	-12.6 C (9.3 F)
2015	-5.2 C (22.6 F)
2016	-7.4 C (18.7 F)
2017	-9.8 C (14.4 F)
2018	-8.0 C (17.6 F)
2019	-9.3 C (15.3 F)
2020	-8.9 C (16.0 F)
2021	-9.0 C (15.8 F)
2022	-5.8 C (21.6 F)
2023	-7.1 C (19.2 F)
2024	-9.2 C (15.4 F)
2025	-6.0 C (21.2 F)
2026	-4.3 C (24.3 F)

Wettest day (Rx1day)

The wettest day of the year at Jamestown, 1879 to 2026. The record is 115.5 mm (4.5 in) in 1976, marked on the chart; the median year is 43.4 mm (1.7 in).

Wettest day (Rx1day) at Jamestown by year
Year	Wettest day (Rx1day)
1879	38.1 mm (1.5 in)
1880	87.1 mm (3.4 in)
1881	53.8 mm (2.1 in)
1882	48.3 mm (1.9 in)
1883	34.3 mm (1.4 in)
1884	38.6 mm (1.5 in)
1885	44.5 mm (1.8 in)
1886	44.5 mm (1.8 in)
1887	41.9 mm (1.6 in)
1888	33.0 mm (1.3 in)
1889	53.1 mm (2.1 in)
1890	42.2 mm (1.7 in)
1891	50.8 mm (2.0 in)
1892	62.7 mm (2.5 in)
1893	45.7 mm (1.8 in)
1894	33.5 mm (1.3 in)
1895	30.5 mm (1.2 in)
1896	58.4 mm (2.3 in)
1897	29.2 mm (1.1 in)
1898	54.6 mm (2.1 in)
1899	51.1 mm (2.0 in)
1900	72.4 mm (2.9 in)
1901	38.1 mm (1.5 in)
1902	45.7 mm (1.8 in)
1903	19.1 mm (0.8 in)
1904	66.0 mm (2.6 in)
1905	20.3 mm (0.8 in)
1906	40.6 mm (1.6 in)
1907	44.5 mm (1.8 in)
1908	31.8 mm (1.3 in)
1909	63.5 mm (2.5 in)
1910	39.4 mm (1.6 in)
1911	40.6 mm (1.6 in)
1912	50.8 mm (2.0 in)
1913	34.0 mm (1.3 in)
1914	43.7 mm (1.7 in)
1915	41.9 mm (1.6 in)
1916	39.6 mm (1.6 in)
1917	29.7 mm (1.2 in)
1918	67.3 mm (2.6 in)
1919	27.9 mm (1.1 in)
1920	33.5 mm (1.3 in)
1921	31.8 mm (1.3 in)
1922	31.2 mm (1.2 in)
1923	61.5 mm (2.4 in)
1924	36.8 mm (1.4 in)
1925	77.0 mm (3.0 in)
1926	48.5 mm (1.9 in)
1927	39.1 mm (1.5 in)
1928	55.1 mm (2.2 in)
1929	57.2 mm (2.3 in)
1930	67.3 mm (2.6 in)
1931	62.2 mm (2.4 in)
1932	33.8 mm (1.3 in)
1933	40.9 mm (1.6 in)
1934	74.9 mm (2.9 in)
1935	69.9 mm (2.8 in)
1936	51.1 mm (2.0 in)
1937	40.9 mm (1.6 in)
1938	56.4 mm (2.2 in)
1939	23.6 mm (0.9 in)
1940	46.2 mm (1.8 in)
1941	50.8 mm (2.0 in)
1942	48.8 mm (1.9 in)
1943	59.2 mm (2.3 in)
1944	84.3 mm (3.3 in)
1945	26.4 mm (1.0 in)
1946	71.1 mm (2.8 in)
1947	56.6 mm (2.2 in)
1948	38.9 mm (1.5 in)
1949	25.4 mm (1.0 in)
1950	50.8 mm (2.0 in)
1951	44.5 mm (1.8 in)
1952	35.6 mm (1.4 in)
1953	42.0 mm (1.7 in)
1954	66.1 mm (2.6 in)
1955	27.5 mm (1.1 in)
1956	36.0 mm (1.4 in)
1957	71.0 mm (2.8 in)
1958	57.0 mm (2.2 in)
1959	37.5 mm (1.5 in)
1960	49.5 mm (1.9 in)
1961	46.5 mm (1.8 in)
1962	43.0 mm (1.7 in)
1963	57.0 mm (2.2 in)
1964	34.5 mm (1.4 in)
1965	51.5 mm (2.0 in)
1966	36.5 mm (1.4 in)
1967	39.0 mm (1.5 in)
1968	33.5 mm (1.3 in)
1969	27.0 mm (1.1 in)
1970	47.5 mm (1.9 in)
1971	35.5 mm (1.4 in)
1972	63.0 mm (2.5 in)
1973	36.5 mm (1.4 in)
1974	50.0 mm (2.0 in)
1975	27.0 mm (1.1 in)
1976	115.5 mm (4.5 in)
1977	73.0 mm (2.9 in)
1978	90.0 mm (3.5 in)
1979	40.0 mm (1.6 in)
1980	45.0 mm (1.8 in)
1981	46.5 mm (1.8 in)
1982	55.0 mm (2.2 in)
1983	60.0 mm (2.4 in)
1984	34.5 mm (1.4 in)
1985	50.0 mm (2.0 in)
1986	44.5 mm (1.8 in)
1987	45.0 mm (1.8 in)
1988	108.0 mm (4.3 in)
1989	33.0 mm (1.3 in)
1990	33.5 mm (1.3 in)
1991	79.0 mm (3.1 in)
1992	34.5 mm (1.4 in)
1993	34.0 mm (1.3 in)
1994	23.6 mm (0.9 in)
1995	48.0 mm (1.9 in)
1996	42.0 mm (1.7 in)
1997	40.0 mm (1.6 in)
2013	6.1 mm (0.24 in)
2014	51.1 mm (2.0 in)
2015	21.1 mm (0.8 in)
2016	25.9 mm (1.0 in)
2017	41.9 mm (1.6 in)
2018	19.1 mm (0.8 in)
2019	51.1 mm (2.0 in)
2020	27.9 mm (1.1 in)
2021	32.0 mm (1.3 in)
2022	38.1 mm (1.5 in)
2023	23.9 mm (0.9 in)
2024	34.0 mm (1.3 in)
2025	n/a
2026	64.0 mm (2.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Jamestown, 1879 to 2026. The record is 220.5 mm (8.7 in) in 1976, marked on the chart; the median year is 70.2 mm (2.8 in).

Wettest five days (Rx5day) at Jamestown by year
Year	Wettest five days (Rx5day)
1879	75.2 mm (3.0 in)
1880	134.8 mm (5.3 in)
1881	67.3 mm (2.6 in)
1882	58.4 mm (2.3 in)
1883	58.4 mm (2.3 in)
1884	57.7 mm (2.3 in)
1885	97.1 mm (3.8 in)
1886	89.2 mm (3.5 in)
1887	77.4 mm (3.0 in)
1888	48.8 mm (1.9 in)
1889	83.1 mm (3.3 in)
1890	65.5 mm (2.6 in)
1891	63.6 mm (2.5 in)
1892	71.9 mm (2.8 in)
1893	86.4 mm (3.4 in)
1894	58.4 mm (2.3 in)
1895	75.9 mm (3.0 in)
1896	86.4 mm (3.4 in)
1897	57.2 mm (2.3 in)
1898	125.9 mm (5.0 in)
1899	96.5 mm (3.8 in)
1900	125.2 mm (4.9 in)
1901	61.0 mm (2.4 in)
1902	53.3 mm (2.1 in)
1903	37.3 mm (1.5 in)
1904	68.5 mm (2.7 in)
1905	49.5 mm (1.9 in)
1906	83.8 mm (3.3 in)
1907	48.8 mm (1.9 in)
1908	31.8 mm (1.3 in)
1909	86.4 mm (3.4 in)
1910	109.3 mm (4.3 in)
1911	71.9 mm (2.8 in)
1912	52.1 mm (2.1 in)
1913	56.1 mm (2.2 in)
1914	57.6 mm (2.3 in)
1915	62.2 mm (2.4 in)
1916	64.3 mm (2.5 in)
1917	76.2 mm (3.0 in)
1918	124.7 mm (4.9 in)
1919	49.5 mm (1.9 in)
1920	80.0 mm (3.1 in)
1921	61.9 mm (2.4 in)
1922	55.1 mm (2.2 in)
1923	130.8 mm (5.1 in)
1924	58.0 mm (2.3 in)
1925	158.8 mm (6.3 in)
1926	73.1 mm (2.9 in)
1927	69.9 mm (2.8 in)
1928	113.7 mm (4.5 in)
1929	96.7 mm (3.8 in)
1930	67.3 mm (2.6 in)
1931	114.8 mm (4.5 in)
1932	116.1 mm (4.6 in)
1933	51.1 mm (2.0 in)
1934	114.8 mm (4.5 in)
1935	77.0 mm (3.0 in)
1936	61.3 mm (2.4 in)
1937	45.2 mm (1.8 in)
1938	121.2 mm (4.8 in)
1939	68.4 mm (2.7 in)
1940	73.0 mm (2.9 in)
1941	99.0 mm (3.9 in)
1942	68.5 mm (2.7 in)
1943	82.6 mm (3.3 in)
1944	89.4 mm (3.5 in)
1945	41.2 mm (1.6 in)
1946	78.2 mm (3.1 in)
1947	72.6 mm (2.9 in)
1948	86.2 mm (3.4 in)
1949	39.7 mm (1.6 in)
1950	98.1 mm (3.9 in)
1951	58.0 mm (2.3 in)
1952	82.9 mm (3.3 in)
1953	116.8 mm (4.6 in)
1954	74.6 mm (2.9 in)
1955	44.5 mm (1.8 in)
1956	54.0 mm (2.1 in)
1957	86.3 mm (3.4 in)
1958	74.0 mm (2.9 in)
1959	84.0 mm (3.3 in)
1960	54.0 mm (2.1 in)
1961	67.0 mm (2.6 in)
1962	80.0 mm (3.1 in)
1963	105.0 mm (4.1 in)
1964	65.0 mm (2.6 in)
1965	56.5 mm (2.2 in)
1966	61.1 mm (2.4 in)
1967	70.5 mm (2.8 in)
1968	75.3 mm (3.0 in)
1969	55.5 mm (2.2 in)
1970	81.0 mm (3.2 in)
1971	66.4 mm (2.6 in)
1972	199.5 mm (7.9 in)
1973	63.3 mm (2.5 in)
1974	151.0 mm (5.9 in)
1975	49.5 mm (1.9 in)
1976	220.5 mm (8.7 in)
1977	84.0 mm (3.3 in)
1978	182.0 mm (7.2 in)
1979	53.0 mm (2.1 in)
1980	83.5 mm (3.3 in)
1981	106.5 mm (4.2 in)
1982	122.0 mm (4.8 in)
1983	84.0 mm (3.3 in)
1984	61.5 mm (2.4 in)
1985	105.5 mm (4.2 in)
1986	68.0 mm (2.7 in)
1987	59.6 mm (2.3 in)
1988	119.5 mm (4.7 in)
1989	50.0 mm (2.0 in)
1990	52.5 mm (2.1 in)
1991	110.5 mm (4.4 in)
1992	54.0 mm (2.1 in)
1993	47.5 mm (1.9 in)
1994	61.5 mm (2.4 in)
1995	86.5 mm (3.4 in)
1996	96.5 mm (3.8 in)
1997	77.5 mm (3.1 in)
2013	n/a
2014	47.2 mm (1.9 in)
2015	28.0 mm (1.1 in)
2016	45.8 mm (1.8 in)
2017	48.0 mm (1.9 in)
2018	34.0 mm (1.3 in)
2019	73.1 mm (2.9 in)
2020	38.1 mm (1.5 in)
2021	49.5 mm (1.9 in)
2022	46.4 mm (1.8 in)
2023	41.2 mm (1.6 in)
2024	61.9 mm (2.4 in)
2025	n/a
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Jamestown, 1879 to 2026. The record is 151 days in 1903, marked on the chart; the median year is 54 days.

Longest dry spell (CDD) at Jamestown by year
Year	Longest dry spell (CDD)
1879	37 days
1880	128 days
1881	33 days
1882	57 days
1883	55 days
1884	54 days
1885	73 days
1886	47 days
1887	41 days
1888	59 days
1889	69 days
1890	45 days
1891	35 days
1892	77 days
1893	45 days
1894	54 days
1895	56 days
1896	74 days
1897	96 days
1898	142 days
1899	49 days
1900	40 days
1901	61 days
1902	40 days
1903	151 days
1904	105 days
1905	53 days
1906	105 days
1907	90 days
1908	36 days
1909	106 days
1910	60 days
1911	52 days
1912	88 days
1913	53 days
1914	50 days
1915	74 days
1916	64 days
1917	40 days
1918	26 days
1919	41 days
1920	58 days
1921	110 days
1922	48 days
1923	34 days
1924	54 days
1925	53 days
1926	29 days
1927	69 days
1928	125 days
1929	42 days
1930	66 days
1931	78 days
1932	60 days
1933	53 days
1934	72 days
1935	45 days
1936	58 days
1937	59 days
1938	38 days
1939	37 days
1940	41 days
1941	45 days
1942	66 days
1943	65 days
1944	95 days
1945	131 days
1946	100 days
1947	46 days
1948	91 days
1949	74 days
1950	34 days
1951	58 days
1952	35 days
1953	91 days
1954	98 days
1955	69 days
1956	59 days
1957	32 days
1958	107 days
1959	43 days
1960	34 days
1961	44 days
1962	93 days
1963	41 days
1964	106 days
1965	66 days
1966	79 days
1967	139 days
1968	53 days
1969	40 days
1970	60 days
1971	49 days
1972	79 days
1973	40 days
1974	68 days
1975	58 days
1976	65 days
1977	79 days
1978	40 days
1979	43 days
1980	73 days
1981	57 days
1982	41 days
1983	45 days
1984	94 days
1985	69 days
1986	41 days
1987	52 days
1988	55 days
1989	55 days
1990	60 days
1991	69 days
1992	45 days
1993	43 days
1994	62 days
1995	52 days
1996	54 days
1997	40 days
2013	1 day
2014	3 days
2015	4 days
2016	2 days
2017	3 days
2018	2 days
2019	3 days
2020	3 days
2021	4 days
2022	2 days
2023	3 days
2024	4 days
2025	n/a
2026	1 day

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.

Rainfall Return Levels

112 years, 1880 to 1996

A day with at least 44.2 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 104.8 mm (4.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Jamestown: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	44.2 mm (1.7 in)
5 years	59.0 mm (2.3 in)
10 years	69.4 mm (2.7 in)
25 years	83.1 mm (3.3 in)
50 years	93.8 mm (3.7 in)
100 years	104.8 mm (4.1 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 112 years of values from 1880 to 1996.

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: 115.5 mm (4.5 in) in 1976; 108.0 mm (4.3 in) in 1988; 90.0 mm (3.5 in) in 1978.

Download the Data

Data for Jamestown standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Jamestown 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).