Colgate Powerhouse Weather Records (USC00041916)

Record envelope, standing records and threshold days for Colgate Powerhouse (USC00041916), California, United States, with 120 years of record.

Key Facts for Colgate Powerhouse

Colgate Powerhouse (USC00041916) is a weather station in California, United States at 39.33 latitude and -121.19 longitude, 181 m (595 ft) above sea level.
The station reports from 1906 to 2025, 120 years of record.
1,464 records set at Colgate Powerhouse still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Colgate Powerhouse set a daily record precipitation of 34.3 mm (1.4 in) on 2 April 2025.

About the Station

Location: California, United States, 39.33 latitude, -121.19 longitude.
Elevation: 181 m (595 ft).
Period of record: 1906 to 2025, 120 years.
Eligible elements: 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 Colgate Powerhouse. 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 Colgate Powerhouse, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.0 C (77.0 F)	-3.9 C (25.0 F)	n/a	n/a
Feb	29.4 C (84.9 F)	-2.2 C (28.0 F)	n/a	n/a
Mar	33.3 C (91.9 F)	0.0 C (32.0 F)	n/a	n/a
Apr	38.9 C (102.0 F)	1.1 C (34.0 F)	n/a	n/a
May	38.9 C (102.0 F)	3.3 C (37.9 F)	n/a	n/a
Jun	45.0 C (113.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	46.1 C (115.0 F)	7.8 C (46.0 F)	n/a	n/a
Aug	47.8 C (118.0 F)	7.8 C (46.0 F)	n/a	n/a
Sep	43.3 C (109.9 F)	6.7 C (44.1 F)	n/a	n/a
Oct	41.7 C (107.1 F)	2.2 C (36.0 F)	n/a	n/a
Nov	33.3 C (91.9 F)	-1.1 C (30.0 F)	n/a	n/a
Dec	26.7 C (80.1 F)	-3.9 C (25.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Colgate Powerhouse still stand. 1940 holds the most, with 237.

All-Time Record Progression

3 new records

3 all-time records were set at Colgate Powerhouse between 22 January 1951 and 13 October 1962. Each dot is a new record.

When Colgate Powerhouse set new all-time records
Date	Kind	Detail
1951-01-22	Record daily precipitation	Record daily precipitation 129.5 mm (5.1 in)
1960-02-08	Record daily precipitation	Record daily precipitation 148.6 mm (5.9 in)
1962-10-13	Record daily precipitation	Record daily precipitation 204.5 mm (8.1 in)

Wettest Day of Each Month

Oct: 204.5 mm (8.1 in)

The wettest day on record for each calendar month at Colgate Powerhouse. The most was 204.5 mm (8.1 in) on 13 October 1962.

Record daily precipitation for each month at Colgate Powerhouse
Month	Record daily precipitation (mm)	Date
Jan	137.2 mm (5.4 in)	11 January 1979
Feb	148.6 mm (5.9 in)	8 February 1960
Mar	95.5 mm (3.8 in)	14 March 2012
Apr	68.1 mm (2.7 in)	6 April 2018
May	82.6 mm (3.3 in)	16 May 1996
Jun	55.4 mm (2.2 in)	23 June 1923
Jul	66.8 mm (2.6 in)	8 July 1974
Aug	37.8 mm (1.5 in)	22 August 2003
Sep	73.2 mm (2.9 in)	13 September 1918
Oct	204.5 mm (8.1 in)	13 October 1962
Nov	112.3 mm (4.4 in)	23 November 1988
Dec	129.0 mm (5.1 in)	9 December 1992

Period of Record Coverage

1925 to 2011

16 years of record at Colgate Powerhouse, 1925 to 2011. 2 years have data for under 90 percent of days and are left out of rankings: 1965, 2011.

Days with data per year at Colgate Powerhouse
Year	Days with data	Share of year	Complete
1925	334	92%	Yes
1926	363	99%	Yes
1927	365	100%	Yes
1928	365	100%	Yes
1929	365	100%	Yes
1930	363	99%	Yes
1931	360	99%	Yes
1932	364	99%	Yes
1933	359	98%	Yes
1934	362	99%	Yes
1940	365	100%	Yes
1941	361	99%	Yes
1942	361	99%	Yes
1943	332	91%	Yes
1965	29	8%	No
2011	23	6%	No

Latest Records

Latest records at Colgate Powerhouse
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 April 2025	Colgate Powerhouse, US	daily rain	34.3 mm (1.4 in)	3.3 mm (0.13 in)	84 years	37 of 100 (Notable)
22 November 2024	Colgate Powerhouse, US	daily rain	88.6 mm (3.5 in)	24.6 mm (1.0 in)	23 years	31 of 100 (Routine)
25 August 2024	Colgate Powerhouse, US	daily rain	8.1 mm (0.32 in)	7.3 mm (0.29 in)	104 years	20 of 100 (Routine)
24 August 2024	Colgate Powerhouse, US	daily rain	5.1 mm (0.20 in)	5.1 mm (0.20 in)	115 years	20 of 100 (Routine)
3 August 2024	Colgate Powerhouse, US	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	115 years	20 of 100 (Routine)
21 August 2023	Colgate Powerhouse, US	daily rain	5.3 mm (0.21 in)	2.8 mm (0.11 in)	54 years	20 of 100 (Routine)
7 May 2023	Colgate Powerhouse, US	daily rain	40.6 mm (1.6 in)	15.7 mm (0.6 in)	100 years	55 of 100 (Notable)
6 May 2023	Colgate Powerhouse, US	daily rain	17.0 mm (0.7 in)	3.8 mm (0.15 in)	96 years	20 of 100 (Routine)
20 September 2022	Colgate Powerhouse, US	daily rain	15.2 mm (0.6 in)	9.6 mm (0.38 in)	17 years	20 of 100 (Routine)
21 April 2022	Colgate Powerhouse, US	daily rain	20.6 mm (0.8 in)	6.6 mm (0.26 in)	67 years	20 of 100 (Routine)
14 April 2022	Colgate Powerhouse, US	daily rain	50.8 mm (2.0 in)	2.5 mm (0.10 in)	59 years	29 of 100 (Routine)
14 December 2021	Colgate Powerhouse, US	daily rain	50.8 mm (2.0 in)	8.6 mm (0.34 in)	87 years	40 of 100 (Notable)
24 October 2021	Colgate Powerhouse, US	daily rain	150.1 mm (5.9 in)	4.6 mm (0.18 in)	11 years	15 of 100 (Routine)
22 October 2021	Colgate Powerhouse, US	daily rain	42.4 mm (1.7 in)	9.4 mm (0.37 in)	48 years	29 of 100 (Routine)
28 January 2021	Colgate Powerhouse, US	daily rain	45.5 mm (1.8 in)	3.3 mm (0.13 in)	71 years	32 of 100 (Routine)
5 April 2020	Colgate Powerhouse, US	daily rain	56.4 mm (2.2 in)	5.6 mm (0.22 in)	109 years	44 of 100 (Notable)
17 December 2018	Colgate Powerhouse, US	daily rain	50.8 mm (2.0 in)	4.8 mm (0.19 in)	45 years	25 of 100 (Routine)
7 April 2018	Colgate Powerhouse, US	daily rain (Tie)	47.0 mm (1.9 in)	tie	0 years	2 of 100 (Routine)
6 April 2018	Colgate Powerhouse, US	monthly rain	68.1 mm (2.7 in)	4.6 mm (0.18 in)	39 years	34 of 100 (Routine)
21 March 2018	Colgate Powerhouse, US	daily rain	73.7 mm (2.9 in)	17.3 mm (0.7 in)	96 years	50 of 100 (Notable)

Extremes by Year

1906 to 2025

Yearly extremes at Colgate Powerhouse: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	47.8 C (118.0 F)	1933	43.6 C (110.5 F)	16
Coldest night (TNn)	-3.9 C (25.0 F)	1940	-3.3 C (26.0 F)	6
Wettest day (Rx1day)	204.5 mm (8.1 in)	1962	71.3 mm (2.8 in)	120
Wettest five days (Rx5day)	408.3 mm (16.1 in)	1962	159.9 mm (6.3 in)	120
Longest dry spell (CDD)	169 days	2002	101 days	120

Hottest day (TXx)

The hottest day of the year at Colgate Powerhouse, 1906 to 2025. The record is 47.8 C (118.0 F) in 1933, marked on the chart; the median year is 43.6 C (110.5 F).

Hottest day (TXx) at Colgate Powerhouse by year
Year	Hottest day (TXx)
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	46.1 C (115.0 F)
1926	43.9 C (111.0 F)
1927	43.3 C (109.9 F)
1928	42.8 C (109.0 F)
1929	44.4 C (111.9 F)
1930	42.8 C (109.0 F)
1931	46.1 C (115.0 F)
1932	43.9 C (111.0 F)
1933	47.8 C (118.0 F)
1934	45.0 C (113.0 F)
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	42.8 C (109.0 F)
1941	43.3 C (109.9 F)
1942	44.4 C (111.9 F)
1943	42.2 C (108.0 F)
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	27.8 C (82.0 F)
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	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	25.0 C (77.0 F)
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a

Coldest night (TNn)

The coldest night of the year at Colgate Powerhouse, 1906 to 2025. The record is -3.9 C (25.0 F) in 1940, marked on the chart; the median year is -3.3 C (26.0 F).

Coldest night (TNn) at Colgate Powerhouse by year
Year	Coldest night (TNn)
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	-3.9 C (25.0 F)
1941	-1.1 C (30.0 F)
1942	-2.8 C (27.0 F)
1943	-3.9 C (25.0 F)
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	0.0 C (32.0 F)
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	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	-3.9 C (25.0 F)
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a

Wettest day (Rx1day)

The wettest day of the year at Colgate Powerhouse, 1906 to 2025. The record is 204.5 mm (8.1 in) in 1962, marked on the chart; the median year is 71.3 mm (2.8 in).

Wettest day (Rx1day) at Colgate Powerhouse by year
Year	Wettest day (Rx1day)
1906	96.8 mm (3.8 in)
1907	90.4 mm (3.6 in)
1908	50.3 mm (2.0 in)
1909	81.8 mm (3.2 in)
1910	52.3 mm (2.1 in)
1911	118.9 mm (4.7 in)
1912	81.3 mm (3.2 in)
1913	108.0 mm (4.3 in)
1914	69.3 mm (2.7 in)
1915	78.7 mm (3.1 in)
1916	104.1 mm (4.1 in)
1917	64.5 mm (2.5 in)
1918	73.2 mm (2.9 in)
1919	76.7 mm (3.0 in)
1920	109.7 mm (4.3 in)
1921	73.2 mm (2.9 in)
1922	83.8 mm (3.3 in)
1923	55.4 mm (2.2 in)
1924	54.9 mm (2.2 in)
1925	87.1 mm (3.4 in)
1926	64.8 mm (2.6 in)
1927	59.7 mm (2.4 in)
1928	75.4 mm (3.0 in)
1929	128.3 mm (5.1 in)
1930	55.1 mm (2.2 in)
1931	71.9 mm (2.8 in)
1932	55.4 mm (2.2 in)
1933	57.7 mm (2.3 in)
1934	50.0 mm (2.0 in)
1935	55.9 mm (2.2 in)
1936	61.5 mm (2.4 in)
1937	99.1 mm (3.9 in)
1938	44.5 mm (1.8 in)
1939	58.9 mm (2.3 in)
1940	94.5 mm (3.7 in)
1941	53.8 mm (2.1 in)
1942	69.3 mm (2.7 in)
1943	70.1 mm (2.8 in)
1944	71.9 mm (2.8 in)
1945	64.8 mm (2.6 in)
1946	55.6 mm (2.2 in)
1947	63.2 mm (2.5 in)
1948	51.6 mm (2.0 in)
1949	67.8 mm (2.7 in)
1950	83.6 mm (3.3 in)
1951	129.5 mm (5.1 in)
1952	80.3 mm (3.2 in)
1953	59.2 mm (2.3 in)
1954	81.3 mm (3.2 in)
1955	117.6 mm (4.6 in)
1956	62.0 mm (2.4 in)
1957	45.7 mm (1.8 in)
1958	62.0 mm (2.4 in)
1959	42.2 mm (1.7 in)
1960	148.6 mm (5.9 in)
1961	51.6 mm (2.0 in)
1962	204.5 mm (8.1 in)
1963	56.4 mm (2.2 in)
1964	110.2 mm (4.3 in)
1965	75.7 mm (3.0 in)
1966	56.4 mm (2.2 in)
1967	84.6 mm (3.3 in)
1968	81.3 mm (3.2 in)
1969	86.4 mm (3.4 in)
1970	79.2 mm (3.1 in)
1971	48.5 mm (1.9 in)
1972	46.0 mm (1.8 in)
1973	93.5 mm (3.7 in)
1974	66.8 mm (2.6 in)
1975	59.4 mm (2.3 in)
1976	34.8 mm (1.4 in)
1977	54.9 mm (2.2 in)
1978	70.6 mm (2.8 in)
1979	137.2 mm (5.4 in)
1980	62.5 mm (2.5 in)
1981	90.7 mm (3.6 in)
1982	95.3 mm (3.8 in)
1983	96.5 mm (3.8 in)
1984	44.2 mm (1.7 in)
1985	69.1 mm (2.7 in)
1986	99.1 mm (3.9 in)
1987	43.7 mm (1.7 in)
1988	112.3 mm (4.4 in)
1989	88.9 mm (3.5 in)
1990	89.4 mm (3.5 in)
1991	89.4 mm (3.5 in)
1992	129.0 mm (5.1 in)
1993	51.8 mm (2.0 in)
1994	100.6 mm (4.0 in)
1995	99.6 mm (3.9 in)
1996	102.6 mm (4.0 in)
1997	78.7 mm (3.1 in)
1998	74.2 mm (2.9 in)
1999	57.9 mm (2.3 in)
2000	64.0 mm (2.5 in)
2001	64.0 mm (2.5 in)
2002	63.2 mm (2.5 in)
2003	55.4 mm (2.2 in)
2004	54.9 mm (2.2 in)
2005	103.1 mm (4.1 in)
2006	57.7 mm (2.3 in)
2007	50.3 mm (2.0 in)
2008	50.8 mm (2.0 in)
2009	51.8 mm (2.0 in)
2010	145.5 mm (5.7 in)
2011	56.9 mm (2.2 in)
2012	95.5 mm (3.8 in)
2013	40.4 mm (1.6 in)
2014	113.8 mm (4.5 in)
2015	73.7 mm (2.9 in)
2016	87.1 mm (3.4 in)
2017	92.7 mm (3.6 in)
2018	82.6 mm (3.3 in)
2019	65.0 mm (2.6 in)
2020	63.5 mm (2.5 in)
2021	150.1 mm (5.9 in)
2022	107.4 mm (4.2 in)
2023	40.6 mm (1.6 in)
2024	88.6 mm (3.5 in)
2025	57.2 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Colgate Powerhouse, 1906 to 2025. The record is 408.3 mm (16.1 in) in 1962, marked on the chart; the median year is 159.9 mm (6.3 in).

Wettest five days (Rx5day) at Colgate Powerhouse by year
Year	Wettest five days (Rx5day)
1906	188.5 mm (7.4 in)
1907	294.4 mm (11.6 in)
1908	86.1 mm (3.4 in)
1909	269.7 mm (10.6 in)
1910	113.3 mm (4.5 in)
1911	255.3 mm (10.1 in)
1912	149.9 mm (5.9 in)
1913	136.1 mm (5.4 in)
1914	248.1 mm (9.8 in)
1915	149.9 mm (5.9 in)
1916	191.7 mm (7.5 in)
1917	181.1 mm (7.1 in)
1918	104.0 mm (4.1 in)
1919	199.7 mm (7.9 in)
1920	162.4 mm (6.4 in)
1921	166.2 mm (6.5 in)
1922	181.8 mm (7.2 in)
1923	117.4 mm (4.6 in)
1924	111.1 mm (4.4 in)
1925	220.4 mm (8.7 in)
1926	197.2 mm (7.8 in)
1927	151.6 mm (6.0 in)
1928	257.0 mm (10.1 in)
1929	317.8 mm (12.5 in)
1930	121.9 mm (4.8 in)
1931	162.8 mm (6.4 in)
1932	85.9 mm (3.4 in)
1933	102.1 mm (4.0 in)
1934	118.5 mm (4.7 in)
1935	117.7 mm (4.6 in)
1936	209.0 mm (8.2 in)
1937	166.4 mm (6.6 in)
1938	187.4 mm (7.4 in)
1939	82.3 mm (3.2 in)
1940	230.9 mm (9.1 in)
1941	154.7 mm (6.1 in)
1942	158.5 mm (6.2 in)
1943	161.5 mm (6.4 in)
1944	111.2 mm (4.4 in)
1945	170.3 mm (6.7 in)
1946	151.9 mm (6.0 in)
1947	93.0 mm (3.7 in)
1948	91.4 mm (3.6 in)
1949	158.2 mm (6.2 in)
1950	215.1 mm (8.5 in)
1951	170.0 mm (6.7 in)
1952	118.4 mm (4.7 in)
1953	115.5 mm (4.5 in)
1954	114.1 mm (4.5 in)
1955	258.6 mm (10.2 in)
1956	179.1 mm (7.1 in)
1957	134.6 mm (5.3 in)
1958	188.6 mm (7.4 in)
1959	115.9 mm (4.6 in)
1960	198.3 mm (7.8 in)
1961	113.0 mm (4.4 in)
1962	408.3 mm (16.1 in)
1963	125.9 mm (5.0 in)
1964	243.3 mm (9.6 in)
1965	198.3 mm (7.8 in)
1966	126.1 mm (5.0 in)
1967	173.5 mm (6.8 in)
1968	127.8 mm (5.0 in)
1969	224.5 mm (8.8 in)
1970	181.8 mm (7.2 in)
1971	140.9 mm (5.5 in)
1972	105.4 mm (4.1 in)
1973	205.0 mm (8.1 in)
1974	141.9 mm (5.6 in)
1975	136.1 mm (5.4 in)
1976	50.0 mm (2.0 in)
1977	104.7 mm (4.1 in)
1978	150.8 mm (5.9 in)
1979	190.8 mm (7.5 in)
1980	165.7 mm (6.5 in)
1981	198.1 mm (7.8 in)
1982	180.8 mm (7.1 in)
1983	180.8 mm (7.1 in)
1984	80.3 mm (3.2 in)
1985	110.7 mm (4.4 in)
1986	243.1 mm (9.6 in)
1987	96.4 mm (3.8 in)
1988	183.7 mm (7.2 in)
1989	152.8 mm (6.0 in)
1990	149.4 mm (5.9 in)
1991	170.3 mm (6.7 in)
1992	203.2 mm (8.0 in)
1993	137.2 mm (5.4 in)
1994	200.2 mm (7.9 in)
1995	206.0 mm (8.1 in)
1996	129.8 mm (5.1 in)
1997	197.2 mm (7.8 in)
1998	213.9 mm (8.4 in)
1999	129.3 mm (5.1 in)
2000	196.9 mm (7.8 in)
2001	112.3 mm (4.4 in)
2002	183.6 mm (7.2 in)
2003	100.3 mm (3.9 in)
2004	107.2 mm (4.2 in)
2005	191.7 mm (7.5 in)
2006	191.5 mm (7.5 in)
2007	148.5 mm (5.8 in)
2008	103.3 mm (4.1 in)
2009	149.9 mm (5.9 in)
2010	181.5 mm (7.1 in)
2011	120.9 mm (4.8 in)
2012	239.3 mm (9.4 in)
2013	49.8 mm (2.0 in)
2014	262.2 mm (10.3 in)
2015	147.4 mm (5.8 in)
2016	145.2 mm (5.7 in)
2017	246.7 mm (9.7 in)
2018	139.8 mm (5.5 in)
2019	137.9 mm (5.4 in)
2020	102.0 mm (4.0 in)
2021	259.0 mm (10.2 in)
2022	161.2 mm (6.3 in)
2023	161.2 mm (6.3 in)
2024	267.9 mm (10.5 in)
2025	145.4 mm (5.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Colgate Powerhouse, 1906 to 2025. The record is 169 days in 2002, marked on the chart; the median year is 101 days.

Longest dry spell (CDD) at Colgate Powerhouse by year
Year	Longest dry spell (CDD)
1906	21 days
1907	53 days
1908	36 days
1909	57 days
1910	45 days
1911	54 days
1912	71 days
1913	58 days
1914	100 days
1915	150 days
1916	81 days
1917	120 days
1918	125 days
1919	114 days
1920	30 days
1921	120 days
1922	110 days
1923	89 days
1924	140 days
1925	66 days
1926	134 days
1927	140 days
1928	140 days
1929	111 days
1930	102 days
1931	126 days
1932	154 days
1933	74 days
1934	104 days
1935	107 days
1936	87 days
1937	108 days
1938	89 days
1939	124 days
1940	95 days
1941	68 days
1942	135 days
1943	137 days
1944	105 days
1945	123 days
1946	111 days
1947	121 days
1948	108 days
1949	99 days
1950	114 days
1951	139 days
1952	45 days
1953	115 days
1954	73 days
1955	93 days
1956	129 days
1957	129 days
1958	102 days
1959	88 days
1960	79 days
1961	108 days
1962	84 days
1963	80 days
1964	56 days
1965	54 days
1966	151 days
1967	96 days
1968	72 days
1969	118 days
1970	113 days
1971	95 days
1972	107 days
1973	91 days
1974	57 days
1975	51 days
1976	65 days
1977	113 days
1978	68 days
1979	73 days
1980	101 days
1981	120 days
1982	77 days
1983	69 days
1984	84 days
1985	41 days
1986	117 days
1987	136 days
1988	129 days
1989	63 days
1990	115 days
1991	45 days
1992	112 days
1993	69 days
1994	110 days
1995	160 days
1996	61 days
1997	67 days
1998	86 days
1999	78 days
2000	84 days
2001	89 days
2002	169 days
2003	69 days
2004	113 days
2005	100 days
2006	135 days
2007	86 days
2008	130 days
2009	101 days
2010	130 days
2011	62 days
2012	21 days
2013	69 days
2014	141 days
2015	74 days
2016	105 days
2017	100 days
2018	129 days
2019	108 days
2020	146 days
2021	136 days
2022	104 days
2023	68 days
2024	110 days
2025	34 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

109 years, 1909 to 2024

A day with at least 71.1 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 178.1 mm (7.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Colgate Powerhouse: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	71.1 mm (2.8 in)
5 years	95.4 mm (3.8 in)
10 years	113.1 mm (4.5 in)
25 years	137.5 mm (5.4 in)
50 years	157.2 mm (6.2 in)
100 years	178.1 mm (7.0 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 109 years of values from 1909 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: 204.5 mm (8.1 in) in 1962; 150.1 mm (5.9 in) in 2021; 148.6 mm (5.9 in) in 1960.

Download the Data

Data for Colgate Powerhouse standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Colgate Powerhouse 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).