Acmetonia Lock 3 Weather Records (USC00360022)

Record envelope, standing records and threshold days for Acmetonia Lock 3 (USC00360022), Pennsylvania, United States, with 122 years of record.

Key Facts for Acmetonia Lock 3

Acmetonia Lock 3 (USC00360022) is a weather station in Pennsylvania, United States at 40.54 latitude and -79.82 longitude, 228 m (748 ft) above sea level.
The station reports from 1905 to 2026, 122 years of record.
1,464 records set at Acmetonia Lock 3 still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Acmetonia Lock 3 set a daily record precipitation of 52.1 mm (2.1 in) on 12 October 2026 (provisional).

Provisional Records

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

About the Station

Location: Pennsylvania, United States, 40.54 latitude, -79.82 longitude.
Elevation: 228 m (748 ft).
Period of record: 1905 to 2026, 122 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

45 days at or beyond a record

The band shows the record high and record low for each calendar day at Acmetonia Lock 3. The lines show the 2026 daily maximum and minimum. 45 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Acmetonia Lock 3, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	19.4 C (66.9 F)	-25.6 C (-14.1 F)	16.7 C (62.1 F)	-25.6 C (-14.1 F)
Feb	23.9 C (75.0 F)	-25.6 C (-14.1 F)	11.7 C (53.1 F)	-25.6 C (-14.1 F)
Mar	26.7 C (80.1 F)	-17.8 C (0.0 F)	26.7 C (80.1 F)	-6.7 C (19.9 F)
Apr	30.6 C (87.1 F)	-6.7 C (19.9 F)	27.8 C (82.0 F)	-3.9 C (25.0 F)
May	34.4 C (93.9 F)	-2.2 C (28.0 F)	32.2 C (90.0 F)	0.0 C (32.0 F)
Jun	38.9 C (102.0 F)	4.4 C (39.9 F)	31.7 C (89.1 F)	6.7 C (44.1 F)
Jul	38.3 C (100.9 F)	8.9 C (48.0 F)	35.0 C (95.0 F)	8.9 C (48.0 F)
Aug	35.6 C (96.1 F)	3.9 C (39.0 F)	30.6 C (87.1 F)	12.2 C (54.0 F)
Sep	35.0 C (95.0 F)	3.9 C (39.0 F)	34.4 C (93.9 F)	6.1 C (43.0 F)
Oct	31.7 C (89.1 F)	-1.1 C (30.0 F)	25.0 C (77.0 F)	2.8 C (37.0 F)
Nov	26.7 C (80.1 F)	-11.7 C (10.9 F)	n/a	n/a
Dec	19.4 C (66.9 F)	-20.6 C (-5.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Acmetonia Lock 3 still stand. 2012 holds the most, with 143.

All-Time Record Progression

5 new records

5 all-time records were set at Acmetonia Lock 3 between 29 July 1964 and 17 February 2010. Each dot is a new record.

When Acmetonia Lock 3 set new all-time records
Date	Kind	Detail
1964-07-29	Record daily precipitation	Record daily precipitation 118.6 mm (4.7 in)
2004-09-18	Record daily precipitation	Record daily precipitation 174.8 mm (6.9 in)
2010-02-10	Record snow depth	Record snow depth 66.0 cm (26.0 in)
2010-02-16	Record snow depth	Record snow depth 71.1 cm (28.0 in)
2010-02-17	Record snow depth	Record snow depth 76.2 cm (30.0 in)

Wettest Day of Each Month

Sep: 174.8 mm (6.9 in)

The wettest day on record for each calendar month at Acmetonia Lock 3. The most was 174.8 mm (6.9 in) on 18 September 2004.

Record daily precipitation for each month at Acmetonia Lock 3
Month	Record daily precipitation (mm)	Date
Jan	54.4 mm (2.1 in)	6 January 2005
Feb	49.3 mm (1.9 in)	24 February 1975
Mar	51.6 mm (2.0 in)	26 March 1913
Apr	78.0 mm (3.1 in)	12 April 2024
May	61.2 mm (2.4 in)	27 May 1987
Jun	115.3 mm (4.5 in)	23 June 1921
Jul	118.6 mm (4.7 in)	29 July 1964
Aug	85.9 mm (3.4 in)	18 August 1946
Sep	174.8 mm (6.9 in)	18 September 2004
Oct	105.4 mm (4.1 in)	16 October 1954
Nov	54.6 mm (2.1 in)	4 November 1985
Dec	69.9 mm (2.8 in)	1 December 2010

Period of Record Coverage

1978 to 2026

17 years of record at Acmetonia Lock 3, 1978 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1978, 2014, 2015, 2022, 2025, 2026.

Days with data per year at Acmetonia Lock 3
Year	Days with data	Share of year	Complete
1978	119	33%	No
2011	361	99%	Yes
2012	350	96%	Yes
2013	353	97%	Yes
2014	323	88%	No
2015	326	89%	No
2016	339	93%	Yes
2017	344	94%	Yes
2018	354	97%	Yes
2019	362	99%	Yes
2020	354	97%	Yes
2021	343	94%	Yes
2022	323	88%	No
2023	361	99%	Yes
2024	342	93%	Yes
2025	297	81%	No
2026	191	52%	No

Latest Records

Latest records at Acmetonia Lock 3
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 2026	Acmetonia Lock 3, US	daily rain (Provisional)	52.1 mm (2.1 in)	25.9 mm (1.0 in)	8 years	41 of 100 (Notable)
11 October 2026	Acmetonia Lock 3, US	daily rain (Provisional)	31.8 mm (1.3 in)	10.7 mm (0.4 in)	120 years	52 of 100 (Notable)
27 March 2026	Acmetonia Lock 3, US	daily rain	46.7 mm (1.8 in)	16.7 mm (0.7 in)	24 years	39 of 100 (Notable)
12 March 2026	Acmetonia Lock 3, US	daily rain	34.3 mm (1.4 in)	12.5 mm (0.5 in)	91 years	53 of 100 (Notable)
14 December 2025	Acmetonia Lock 3, US	daily snowfall (Tie)	15.2 cm (6.0 in)	tie	111 years	10 of 100 (Routine)
14 July 2025	Acmetonia Lock 3, US	daily rain	38.1 mm (1.5 in)	0.8 mm (0.03 in)	91 years	37 of 100 (Notable)
22 May 2025	Acmetonia Lock 3, US	daily rain	49.5 mm (1.9 in)	21.3 mm (0.8 in)	8 years	37 of 100 (Notable)
11 November 2024	Acmetonia Lock 3, US	daily rain	23.4 mm (0.9 in)	3.8 mm (0.15 in)	79 years	20 of 100 (Routine)
31 July 2024	Acmetonia Lock 3, US	daily rain	55.4 mm (2.2 in)	3.8 mm (0.15 in)	88 years	38 of 100 (Notable)
12 April 2024	Acmetonia Lock 3, US	monthly rain	78.0 mm (3.1 in)	22.9 mm (0.9 in)	69 years	69 of 100 (Major)
2 April 2024	Acmetonia Lock 3, US	daily rain	40.6 mm (1.6 in)	8.1 mm (0.32 in)	54 years	36 of 100 (Notable)
29 February 2024	Acmetonia Lock 3, US	daily rain	12.4 mm (0.5 in)	2.7 mm (0.11 in)	32 years	20 of 100 (Routine)
28 January 2024	Acmetonia Lock 3, US	daily rain	25.1 mm (1.0 in)	1.0 mm (0.04 in)	100 years	41 of 100 (Notable)
10 January 2024	Acmetonia Lock 3, US	daily rain	48.5 mm (1.9 in)	36.1 mm (1.4 in)	73 years	72 of 100 (Major)
22 November 2023	Acmetonia Lock 3, US	daily rain	28.7 mm (1.1 in)	7.1 mm (0.28 in)	30 years	28 of 100 (Routine)
12 November 2022	Acmetonia Lock 3, US	daily rain	40.1 mm (1.6 in)	21.8 mm (0.9 in)	31 years	47 of 100 (Notable)
22 August 2022	Acmetonia Lock 3, US	daily rain	43.9 mm (1.7 in)	18.5 mm (0.7 in)	75 years	48 of 100 (Notable)
7 May 2022	Acmetonia Lock 3, US	daily rain	53.8 mm (2.1 in)	30.2 mm (1.2 in)	87 years	72 of 100 (Major)
13 March 2022	Acmetonia Lock 3, US	daily snow depth	12.7 cm (5.0 in)	2.5 cm (1.0 in)	63 years	31 of 100 (Routine)
10 March 2022	Acmetonia Lock 3, US	daily snowfall	12.2 cm (4.8 in)	7.1 cm (2.8 in)	61 years	43 of 100 (Notable)

Climate Trend

12 complete years, 2011 to 2024

One stripe for each of 12 complete years at Acmetonia Lock 3, 2011 to 2024. Blue stripes are years cooler than the station's own mean of 11.4 C (52.6 F); red stripes are warmer. The coolest year was 2014, at 9.4 C (49.0 F), and the warmest was 2012, at 12.8 C (55.1 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Acmetonia Lock 3 as warming stripes, 2011 to 2024
Year	Annual mean temperature	Difference from the station mean
2011	11.1 C	-0.35 C
2012	12.8 C	+1.39 C
2013	10.5 C	-0.97 C
2014	9.4 C	-1.99 C
2016	11.7 C	+0.26 C
2017	11.6 C	+0.21 C
2018	11.0 C	-0.43 C
2019	11.2 C	-0.24 C
2020	11.7 C	+0.32 C
2021	11.9 C	+0.46 C
2023	11.8 C	+0.36 C
2024	12.4 C	+0.96 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1905 to 2026

Yearly extremes at Acmetonia Lock 3: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	2022	35.6 C (96.1 F)	17
Coldest night (TNn)	-25.6 C (-14.1 F)	2026	-17.8 C (0.0 F)	17
Wettest day (Rx1day)	174.8 mm (6.9 in)	2004	49.5 mm (1.9 in)	122
Wettest five days (Rx5day)	204.7 mm (8.1 in)	2018	81.4 mm (3.2 in)	122
Longest dry spell (CDD)	44 days	1963	15 days	122

Hottest day (TXx)

The hottest day of the year at Acmetonia Lock 3, 1905 to 2026. The record is 38.9 C (102.0 F) in 2022, marked on the chart; the median year is 35.6 C (96.1 F).

Hottest day (TXx) at Acmetonia Lock 3 by year
Year	Hottest day (TXx)
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	32.2 C (90.0 F)
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	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	36.7 C (98.1 F)
2012	38.3 C (100.9 F)
2013	36.7 C (98.1 F)
2014	31.7 C (89.1 F)
2015	31.7 C (89.1 F)
2016	33.3 C (91.9 F)
2017	32.8 C (91.0 F)
2018	35.0 C (95.0 F)
2019	35.6 C (96.1 F)
2020	35.6 C (96.1 F)
2021	38.3 C (100.9 F)
2022	38.9 C (102.0 F)
2023	33.3 C (91.9 F)
2024	35.6 C (96.1 F)
2025	36.7 C (98.1 F)
2026	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Acmetonia Lock 3, 1905 to 2026. The record is -25.6 C (-14.1 F) in 2026, marked on the chart; the median year is -17.8 C (0.0 F).

Coldest night (TNn) at Acmetonia Lock 3 by year
Year	Coldest night (TNn)
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	-1.1 C (30.0 F)
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	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	-18.9 C (-2.0 F)
2012	-13.9 C (7.0 F)
2013	-16.1 C (3.0 F)
2014	-21.1 C (-6.0 F)
2015	-22.8 C (-9.0 F)
2016	-17.2 C (1.0 F)
2017	-17.8 C (0.0 F)
2018	-20.0 C (-4.0 F)
2019	-20.0 C (-4.0 F)
2020	-12.8 C (9.0 F)
2021	-15.0 C (5.0 F)
2022	-20.6 C (-5.1 F)
2023	-14.4 C (6.1 F)
2024	-13.3 C (8.1 F)
2025	-20.6 C (-5.1 F)
2026	-25.6 C (-14.1 F)

Wettest day (Rx1day)

The wettest day of the year at Acmetonia Lock 3, 1905 to 2026. The record is 174.8 mm (6.9 in) in 2004, marked on the chart; the median year is 49.5 mm (1.9 in).

Wettest day (Rx1day) at Acmetonia Lock 3 by year
Year	Wettest day (Rx1day)
1905	55.9 mm (2.2 in)
1906	60.7 mm (2.4 in)
1907	39.9 mm (1.6 in)
1908	42.7 mm (1.7 in)
1909	47.0 mm (1.9 in)
1910	35.1 mm (1.4 in)
1911	95.0 mm (3.7 in)
1912	62.2 mm (2.4 in)
1913	51.6 mm (2.0 in)
1914	45.7 mm (1.8 in)
1915	38.9 mm (1.5 in)
1916	35.8 mm (1.4 in)
1917	46.5 mm (1.8 in)
1918	38.4 mm (1.5 in)
1919	70.1 mm (2.8 in)
1920	55.9 mm (2.2 in)
1921	115.3 mm (4.5 in)
1922	105.2 mm (4.1 in)
1923	72.4 mm (2.9 in)
1924	62.2 mm (2.4 in)
1925	32.3 mm (1.3 in)
1926	86.4 mm (3.4 in)
1927	45.7 mm (1.8 in)
1928	50.5 mm (2.0 in)
1929	52.8 mm (2.1 in)
1930	39.4 mm (1.6 in)
1931	47.8 mm (1.9 in)
1932	36.8 mm (1.4 in)
1933	47.2 mm (1.9 in)
1934	50.8 mm (2.0 in)
1935	47.2 mm (1.9 in)
1936	56.4 mm (2.2 in)
1937	52.8 mm (2.1 in)
1938	37.6 mm (1.5 in)
1939	31.8 mm (1.3 in)
1940	44.7 mm (1.8 in)
1941	42.2 mm (1.7 in)
1942	45.7 mm (1.8 in)
1943	83.1 mm (3.3 in)
1944	36.8 mm (1.4 in)
1945	38.6 mm (1.5 in)
1946	85.9 mm (3.4 in)
1947	40.6 mm (1.6 in)
1948	53.3 mm (2.1 in)
1949	31.5 mm (1.2 in)
1950	62.5 mm (2.5 in)
1951	61.0 mm (2.4 in)
1952	60.2 mm (2.4 in)
1953	55.9 mm (2.2 in)
1954	105.4 mm (4.1 in)
1955	46.5 mm (1.8 in)
1956	44.2 mm (1.7 in)
1957	47.5 mm (1.9 in)
1958	43.4 mm (1.7 in)
1959	38.1 mm (1.5 in)
1960	34.5 mm (1.4 in)
1961	33.3 mm (1.3 in)
1962	58.4 mm (2.3 in)
1963	48.5 mm (1.9 in)
1964	118.6 mm (4.7 in)
1965	34.8 mm (1.4 in)
1966	42.9 mm (1.7 in)
1967	39.1 mm (1.5 in)
1968	42.9 mm (1.7 in)
1969	50.8 mm (2.0 in)
1970	50.8 mm (2.0 in)
1971	44.2 mm (1.7 in)
1972	57.2 mm (2.3 in)
1973	40.9 mm (1.6 in)
1974	78.7 mm (3.1 in)
1975	49.3 mm (1.9 in)
1976	36.3 mm (1.4 in)
1977	111.8 mm (4.4 in)
1978	42.2 mm (1.7 in)
1979	43.4 mm (1.7 in)
1980	52.1 mm (2.1 in)
1981	46.5 mm (1.8 in)
1982	29.5 mm (1.2 in)
1983	50.8 mm (2.0 in)
1984	75.2 mm (3.0 in)
1985	54.6 mm (2.1 in)
1986	55.6 mm (2.2 in)
1987	61.2 mm (2.4 in)
1988	46.2 mm (1.8 in)
1989	49.5 mm (1.9 in)
1990	48.5 mm (1.9 in)
1991	49.0 mm (1.9 in)
1992	50.8 mm (2.0 in)
1993	42.9 mm (1.7 in)
1994	45.2 mm (1.8 in)
1995	48.5 mm (1.9 in)
1996	55.9 mm (2.2 in)
1997	51.3 mm (2.0 in)
1998	37.6 mm (1.5 in)
1999	50.5 mm (2.0 in)
2000	43.7 mm (1.7 in)
2001	38.1 mm (1.5 in)
2002	56.1 mm (2.2 in)
2003	52.1 mm (2.1 in)
2004	174.8 mm (6.9 in)
2005	54.4 mm (2.1 in)
2006	44.2 mm (1.7 in)
2007	64.8 mm (2.6 in)
2008	72.4 mm (2.9 in)
2009	41.9 mm (1.6 in)
2010	69.9 mm (2.8 in)
2011	37.6 mm (1.5 in)
2012	55.4 mm (2.2 in)
2013	49.5 mm (1.9 in)
2014	50.8 mm (2.0 in)
2015	54.6 mm (2.1 in)
2016	40.9 mm (1.6 in)
2017	117.3 mm (4.6 in)
2018	117.3 mm (4.6 in)
2019	90.2 mm (3.6 in)
2020	36.8 mm (1.4 in)
2021	64.0 mm (2.5 in)
2022	53.8 mm (2.1 in)
2023	50.8 mm (2.0 in)
2024	78.0 mm (3.1 in)
2025	49.5 mm (1.9 in)
2026	52.1 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Acmetonia Lock 3, 1905 to 2026. The record is 204.7 mm (8.1 in) in 2018, marked on the chart; the median year is 81.4 mm (3.2 in).

Wettest five days (Rx5day) at Acmetonia Lock 3 by year
Year	Wettest five days (Rx5day)
1905	99.2 mm (3.9 in)
1906	123.7 mm (4.9 in)
1907	79.8 mm (3.1 in)
1908	64.0 mm (2.5 in)
1909	87.1 mm (3.4 in)
1910	56.9 mm (2.2 in)
1911	108.7 mm (4.3 in)
1912	115.3 mm (4.5 in)
1913	104.8 mm (4.1 in)
1914	109.7 mm (4.3 in)
1915	72.7 mm (2.9 in)
1916	89.6 mm (3.5 in)
1917	48.8 mm (1.9 in)
1918	51.6 mm (2.0 in)
1919	106.2 mm (4.2 in)
1920	108.5 mm (4.3 in)
1921	146.3 mm (5.8 in)
1922	116.4 mm (4.6 in)
1923	99.4 mm (3.9 in)
1924	73.9 mm (2.9 in)
1925	53.4 mm (2.1 in)
1926	136.5 mm (5.4 in)
1927	81.5 mm (3.2 in)
1928	89.5 mm (3.5 in)
1929	91.3 mm (3.6 in)
1930	69.2 mm (2.7 in)
1931	70.2 mm (2.8 in)
1932	61.3 mm (2.4 in)
1933	70.1 mm (2.8 in)
1934	113.1 mm (4.5 in)
1935	77.2 mm (3.0 in)
1936	96.5 mm (3.8 in)
1937	104.1 mm (4.1 in)
1938	69.3 mm (2.7 in)
1939	92.4 mm (3.6 in)
1940	75.5 mm (3.0 in)
1941	81.3 mm (3.2 in)
1942	79.4 mm (3.1 in)
1943	85.4 mm (3.4 in)
1944	66.8 mm (2.6 in)
1945	91.5 mm (3.6 in)
1946	95.3 mm (3.8 in)
1947	112.7 mm (4.4 in)
1948	112.8 mm (4.4 in)
1949	55.2 mm (2.2 in)
1950	106.5 mm (4.2 in)
1951	65.5 mm (2.6 in)
1952	87.9 mm (3.5 in)
1953	67.3 mm (2.6 in)
1954	120.7 mm (4.8 in)
1955	106.2 mm (4.2 in)
1956	64.6 mm (2.5 in)
1957	89.6 mm (3.5 in)
1958	97.3 mm (3.8 in)
1959	69.9 mm (2.8 in)
1960	69.6 mm (2.7 in)
1961	61.5 mm (2.4 in)
1962	90.5 mm (3.6 in)
1963	69.4 mm (2.7 in)
1964	131.5 mm (5.2 in)
1965	53.3 mm (2.1 in)
1966	70.1 mm (2.8 in)
1967	86.6 mm (3.4 in)
1968	63.3 mm (2.5 in)
1969	69.0 mm (2.7 in)
1970	69.0 mm (2.7 in)
1971	69.1 mm (2.7 in)
1972	154.5 mm (6.1 in)
1973	81.0 mm (3.2 in)
1974	84.3 mm (3.3 in)
1975	69.6 mm (2.7 in)
1976	55.9 mm (2.2 in)
1977	126.0 mm (5.0 in)
1978	79.3 mm (3.1 in)
1979	61.9 mm (2.4 in)
1980	82.1 mm (3.2 in)
1981	111.1 mm (4.4 in)
1982	46.0 mm (1.8 in)
1983	77.0 mm (3.0 in)
1984	97.6 mm (3.8 in)
1985	101.3 mm (4.0 in)
1986	71.6 mm (2.8 in)
1987	71.4 mm (2.8 in)
1988	78.7 mm (3.1 in)
1989	65.6 mm (2.6 in)
1990	80.0 mm (3.1 in)
1991	63.0 mm (2.5 in)
1992	72.9 mm (2.9 in)
1993	67.9 mm (2.7 in)
1994	93.0 mm (3.7 in)
1995	77.0 mm (3.0 in)
1996	76.4 mm (3.0 in)
1997	74.7 mm (2.9 in)
1998	55.9 mm (2.2 in)
1999	58.0 mm (2.3 in)
2000	96.5 mm (3.8 in)
2001	59.3 mm (2.3 in)
2002	82.3 mm (3.2 in)
2003	110.8 mm (4.4 in)
2004	177.3 mm (7.0 in)
2005	107.0 mm (4.2 in)
2006	90.7 mm (3.6 in)
2007	114.2 mm (4.5 in)
2008	82.1 mm (3.2 in)
2009	53.3 mm (2.1 in)
2010	77.3 mm (3.0 in)
2011	71.3 mm (2.8 in)
2012	95.0 mm (3.7 in)
2013	68.8 mm (2.7 in)
2014	74.2 mm (2.9 in)
2015	98.0 mm (3.9 in)
2016	81.6 mm (3.2 in)
2017	119.8 mm (4.7 in)
2018	204.7 mm (8.1 in)
2019	110.5 mm (4.4 in)
2020	71.6 mm (2.8 in)
2021	126.7 mm (5.0 in)
2022	122.6 mm (4.8 in)
2023	90.7 mm (3.6 in)
2024	110.1 mm (4.3 in)
2025	76.2 mm (3.0 in)
2026	70.8 mm (2.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Acmetonia Lock 3, 1905 to 2026. The record is 44 days in 1963, marked on the chart; the median year is 15 days.

Longest dry spell (CDD) at Acmetonia Lock 3 by year
Year	Longest dry spell (CDD)
1905	12 days
1906	12 days
1907	10 days
1908	20 days
1909	13 days
1910	21 days
1911	13 days
1912	11 days
1913	17 days
1914	14 days
1915	11 days
1916	12 days
1917	22 days
1918	21 days
1919	13 days
1920	24 days
1921	12 days
1922	25 days
1923	20 days
1924	23 days
1925	19 days
1926	8 days
1927	13 days
1928	13 days
1929	12 days
1930	13 days
1931	11 days
1932	25 days
1933	13 days
1934	19 days
1935	15 days
1936	16 days
1937	14 days
1938	23 days
1939	13 days
1940	11 days
1941	17 days
1942	17 days
1943	26 days
1944	13 days
1945	12 days
1946	12 days
1947	18 days
1948	11 days
1949	13 days
1950	12 days
1951	18 days
1952	14 days
1953	21 days
1954	12 days
1955	26 days
1956	15 days
1957	17 days
1958	16 days
1959	24 days
1960	13 days
1961	11 days
1962	18 days
1963	44 days
1964	22 days
1965	12 days
1966	15 days
1967	17 days
1968	15 days
1969	14 days
1970	11 days
1971	15 days
1972	10 days
1973	15 days
1974	9 days
1975	13 days
1976	25 days
1977	15 days
1978	11 days
1979	10 days
1980	16 days
1981	15 days
1982	17 days
1983	12 days
1984	14 days
1985	15 days
1986	16 days
1987	16 days
1988	31 days
1989	12 days
1990	11 days
1991	25 days
1992	18 days
1993	16 days
1994	25 days
1995	17 days
1996	19 days
1997	25 days
1998	24 days
1999	21 days
2000	15 days
2001	16 days
2002	22 days
2003	12 days
2004	13 days
2005	17 days
2006	17 days
2007	16 days
2008	16 days
2009	14 days
2010	10 days
2011	12 days
2012	15 days
2013	11 days
2014	10 days
2015	9 days
2016	10 days
2017	21 days
2018	11 days
2019	13 days
2020	14 days
2021	14 days
2022	10 days
2023	21 days
2024	17 days
2025	10 days
2026	8 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.

Rainfall Return Levels

116 years, 1906 to 2024

A day with at least 48.9 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 151.2 mm (6.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Acmetonia Lock 3: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	48.9 mm (1.9 in)
5 years	65.1 mm (2.6 in)
10 years	79.3 mm (3.1 in)
25 years	102.4 mm (4.0 in)
50 years	124.3 mm (4.9 in)
100 years	151.2 mm (6.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 116 years of values from 1906 to 2024.

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: 174.8 mm (6.9 in) in 2004; 118.6 mm (4.7 in) in 1964; 117.3 mm (4.6 in) in 2017.

Download the Data

Data for Acmetonia Lock 3 standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Acmetonia Lock 3 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).