Chimacum 4 S Weather Records (USC00451414)

Record envelope, standing records and threshold days for Chimacum 4 S (USC00451414), Washington, United States, with 101 years of record.

Key Facts for Chimacum 4 S

Chimacum 4 S (USC00451414) is a weather station in Washington, United States at 47.95 latitude and -122.79 longitude, 43 m (140 ft) above sea level.
The station reports from 1926 to 2026, 101 years of record.
34 records set at Chimacum 4 S still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chimacum 4 S set a daily record precipitation of 9.7 mm (0.38 in) on 17 July 2026.

About the Station

Location: Washington, United States, 47.95 latitude, -122.79 longitude.
Elevation: 43 m (140 ft).
Period of record: 1926 to 2026, 101 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 Chimacum 4 S. 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 Chimacum 4 S, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	-1.1 C (30.0 F)	-12.2 C (10.0 F)	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	-1.1 C (30.0 F)	n/a	n/a
Nov	n/a	-5.6 C (21.9 F)	n/a	n/a
Dec	n/a	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

34 standing records

34 records at Chimacum 4 S still stand. 1942 holds the most, with 12.

All-Time Record Progression

1 new records

1 all-time records were set at Chimacum 4 S between 11 December 1969 and 11 December 1969. Each dot is a new record.

Wettest Day of Each Month

Dec: 68.8 mm (2.7 in)

The wettest day on record for each calendar month at Chimacum 4 S. The most was 68.8 mm (2.7 in) on 11 December 1969.

Record daily precipitation for each month at Chimacum 4 S
Month	Record daily precipitation (mm)	Date
Jan	59.4 mm (2.3 in)	15 January 1951
Feb	49.5 mm (1.9 in)	8 February 1969
Mar	51.3 mm (2.0 in)	9 March 2016
Apr	41.7 mm (1.6 in)	28 April 1972
May	46.5 mm (1.8 in)	28 May 1948
Jun	38.6 mm (1.5 in)	14 June 1946
Jul	28.4 mm (1.1 in)	7 July 1948
Aug	49.5 mm (1.9 in)	18 August 1975
Sep	48.5 mm (1.9 in)	5 September 1931
Oct	50.3 mm (2.0 in)	21 October 1982
Nov	53.6 mm (2.1 in)	1 November 1984
Dec	68.8 mm (2.7 in)	11 December 1969

Period of Record Coverage

1942 to 1942

1 years of record at Chimacum 4 S, 1942 to 1942. 1 years have data for under 90 percent of days and are left out of rankings: 1942.

Latest Records

Latest records at Chimacum 4 S
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 July 2026	Chimacum 4 S, US	daily rain	9.7 mm (0.38 in)	7.2 mm (0.28 in)	96 years	20 of 100 (Routine)
27 June 2026	Chimacum 4 S, US	daily rain	16.3 mm (0.6 in)	2.3 mm (0.09 in)	79 years	20 of 100 (Routine)
6 November 2025	Chimacum 4 S, US	daily rain	24.4 mm (1.0 in)	7.4 mm (0.29 in)	50 years	20 of 100 (Routine)
25 February 2025	Chimacum 4 S, US	daily rain	38.1 mm (1.5 in)	11.9 mm (0.5 in)	68 years	47 of 100 (Notable)
26 December 2024	Chimacum 4 S, US	daily rain	38.9 mm (1.5 in)	12.2 mm (0.5 in)	93 years	50 of 100 (Notable)
25 September 2024	Chimacum 4 S, US	daily rain	16.5 mm (0.6 in)	5.8 mm (0.23 in)	1 year	20 of 100 (Routine)
29 February 2024	Chimacum 4 S, US	daily rain	18.0 mm (0.7 in)	4.8 mm (0.19 in)	52 years	20 of 100 (Routine)
25 September 2023	Chimacum 4 S, US	daily rain	10.7 mm (0.4 in)	1.6 mm (0.06 in)	52 years	20 of 100 (Routine)
20 December 2022	Chimacum 4 S, US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	55 years	29 of 100 (Routine)
10 December 2022	Chimacum 4 S, US	daily rain	44.5 mm (1.8 in)	10.2 mm (0.4 in)	27 years	29 of 100 (Routine)
3 June 2022	Chimacum 4 S, US	daily rain	24.1 mm (0.9 in)	4.0 mm (0.16 in)	65 years	20 of 100 (Routine)
7 May 2022	Chimacum 4 S, US	daily rain	20.1 mm (0.8 in)	1.1 mm (0.04 in)	11 years	14 of 100 (Routine)
18 April 2022	Chimacum 4 S, US	daily rain	24.6 mm (1.0 in)	7.3 mm (0.29 in)	64 years	20 of 100 (Routine)
3 April 2022	Chimacum 4 S, US	daily rain	18.5 mm (0.7 in)	8.3 mm (0.33 in)	92 years	20 of 100 (Routine)
2 January 2022	Chimacum 4 S, US	daily rain	43.2 mm (1.7 in)	4.6 mm (0.18 in)	68 years	35 of 100 (Notable)
26 September 2021	Chimacum 4 S, US	daily rain	19.1 mm (0.8 in)	1.8 mm (0.07 in)	80 years	20 of 100 (Routine)
3 January 2021	Chimacum 4 S, US	daily rain	39.1 mm (1.5 in)	14.0 mm (0.6 in)	13 years	31 of 100 (Routine)
13 June 2020	Chimacum 4 S, US	daily rain	18.5 mm (0.7 in)	4.8 mm (0.19 in)	4 years	19 of 100 (Routine)
12 June 2020	Chimacum 4 S, US	daily rain	21.6 mm (0.9 in)	5.3 mm (0.21 in)	7 years	20 of 100 (Routine)
9 September 2019	Chimacum 4 S, US	daily rain	30.0 mm (1.2 in)	16.8 mm (0.7 in)	40 years	53 of 100 (Notable)

Extremes by Year

1926 to 2026

Yearly extremes at Chimacum 4 S: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	-1.1 C (30.0 F)	1942	-1.1 C (30.0 F)	1
Coldest night (TNn)	-12.2 C (10.0 F)	1942	-8.3 C (17.1 F)	5
Wettest day (Rx1day)	68.8 mm (2.7 in)	1969	38.9 mm (1.5 in)	101
Wettest five days (Rx5day)	148.9 mm (5.9 in)	1982	73.6 mm (2.9 in)	101
Longest dry spell (CDD)	71 days	2022	26 days	101

Hottest day (TXx)

The hottest day of the year at Chimacum 4 S, 1926 to 2026. The record is -1.1 C (30.0 F) in 1942, marked on the chart; the median year is -1.1 C (30.0 F).

Hottest day (TXx) at Chimacum 4 S by year
Year	Hottest day (TXx)
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	-1.1 C (30.0 F)
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	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	n/a
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
2026	n/a

Coldest night (TNn)

The coldest night of the year at Chimacum 4 S, 1926 to 2026. The record is -12.2 C (10.0 F) in 1942, marked on the chart; the median year is -8.3 C (17.1 F).

Coldest night (TNn) at Chimacum 4 S by year
Year	Coldest night (TNn)
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	-8.3 C (17.1 F)
1941	-6.7 C (19.9 F)
1942	-12.2 C (10.0 F)
1943	-10.0 C (14.0 F)
1944	4.4 C (39.9 F)
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	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	n/a
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
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Chimacum 4 S, 1926 to 2026. The record is 68.8 mm (2.7 in) in 1969, marked on the chart; the median year is 38.9 mm (1.5 in).

Wettest day (Rx1day) at Chimacum 4 S by year
Year	Wettest day (Rx1day)
1926	25.4 mm (1.0 in)
1927	25.9 mm (1.0 in)
1928	24.1 mm (0.9 in)
1929	35.6 mm (1.4 in)
1930	19.6 mm (0.8 in)
1931	48.5 mm (1.9 in)
1932	50.3 mm (2.0 in)
1933	29.5 mm (1.2 in)
1934	20.6 mm (0.8 in)
1935	41.4 mm (1.6 in)
1936	33.3 mm (1.3 in)
1937	43.2 mm (1.7 in)
1938	21.6 mm (0.9 in)
1939	36.8 mm (1.4 in)
1940	32.0 mm (1.3 in)
1941	49.0 mm (1.9 in)
1942	43.2 mm (1.7 in)
1943	43.4 mm (1.7 in)
1944	25.7 mm (1.0 in)
1945	40.1 mm (1.6 in)
1946	44.2 mm (1.7 in)
1947	30.7 mm (1.2 in)
1948	46.5 mm (1.8 in)
1949	31.2 mm (1.2 in)
1950	34.8 mm (1.4 in)
1951	59.4 mm (2.3 in)
1952	46.5 mm (1.8 in)
1953	27.2 mm (1.1 in)
1954	42.4 mm (1.7 in)
1955	34.8 mm (1.4 in)
1956	36.1 mm (1.4 in)
1957	37.6 mm (1.5 in)
1958	33.5 mm (1.3 in)
1959	50.3 mm (2.0 in)
1960	49.5 mm (1.9 in)
1961	30.2 mm (1.2 in)
1962	51.6 mm (2.0 in)
1963	34.3 mm (1.4 in)
1964	35.8 mm (1.4 in)
1965	50.5 mm (2.0 in)
1966	37.8 mm (1.5 in)
1967	47.2 mm (1.9 in)
1968	43.7 mm (1.7 in)
1969	68.8 mm (2.7 in)
1970	29.7 mm (1.2 in)
1971	42.7 mm (1.7 in)
1972	41.7 mm (1.6 in)
1973	31.8 mm (1.3 in)
1974	34.3 mm (1.4 in)
1975	49.5 mm (1.9 in)
1976	28.4 mm (1.1 in)
1977	26.2 mm (1.0 in)
1978	37.8 mm (1.5 in)
1979	39.6 mm (1.6 in)
1980	45.0 mm (1.8 in)
1981	51.8 mm (2.0 in)
1982	52.1 mm (2.1 in)
1983	53.3 mm (2.1 in)
1984	53.6 mm (2.1 in)
1985	30.7 mm (1.2 in)
1986	44.2 mm (1.7 in)
1987	54.9 mm (2.2 in)
1988	37.8 mm (1.5 in)
1989	20.1 mm (0.8 in)
1990	43.4 mm (1.7 in)
1991	43.7 mm (1.7 in)
1992	51.1 mm (2.0 in)
1993	51.1 mm (2.0 in)
1994	31.8 mm (1.3 in)
1995	41.1 mm (1.6 in)
1996	51.3 mm (2.0 in)
1997	30.7 mm (1.2 in)
1998	48.8 mm (1.9 in)
1999	42.9 mm (1.7 in)
2000	24.1 mm (0.9 in)
2001	46.7 mm (1.8 in)
2002	34.8 mm (1.4 in)
2003	42.7 mm (1.7 in)
2004	27.9 mm (1.1 in)
2005	33.3 mm (1.3 in)
2006	37.8 mm (1.5 in)
2007	52.6 mm (2.1 in)
2008	25.1 mm (1.0 in)
2009	42.7 mm (1.7 in)
2010	31.2 mm (1.2 in)
2011	51.1 mm (2.0 in)
2012	41.7 mm (1.6 in)
2013	16.5 mm (0.6 in)
2014	33.0 mm (1.3 in)
2015	39.9 mm (1.6 in)
2016	51.3 mm (2.0 in)
2017	44.2 mm (1.7 in)
2018	25.4 mm (1.0 in)
2019	30.0 mm (1.2 in)
2020	24.9 mm (1.0 in)
2021	39.1 mm (1.5 in)
2022	44.5 mm (1.8 in)
2023	21.1 mm (0.8 in)
2024	38.9 mm (1.5 in)
2025	38.1 mm (1.5 in)
2026	21.1 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chimacum 4 S, 1926 to 2026. The record is 148.9 mm (5.9 in) in 1982, marked on the chart; the median year is 73.6 mm (2.9 in).

Wettest five days (Rx5day) at Chimacum 4 S by year
Year	Wettest five days (Rx5day)
1926	33.6 mm (1.3 in)
1927	73.6 mm (2.9 in)
1928	39.8 mm (1.6 in)
1929	36.3 mm (1.4 in)
1930	33.0 mm (1.3 in)
1931	81.8 mm (3.2 in)
1932	76.8 mm (3.0 in)
1933	91.7 mm (3.6 in)
1934	59.2 mm (2.3 in)
1935	48.0 mm (1.9 in)
1936	59.5 mm (2.3 in)
1937	114.6 mm (4.5 in)
1938	63.1 mm (2.5 in)
1939	78.7 mm (3.1 in)
1940	50.1 mm (2.0 in)
1941	74.6 mm (2.9 in)
1942	64.6 mm (2.5 in)
1943	63.8 mm (2.5 in)
1944	34.8 mm (1.4 in)
1945	75.8 mm (3.0 in)
1946	77.7 mm (3.1 in)
1947	80.0 mm (3.1 in)
1948	68.9 mm (2.7 in)
1949	63.6 mm (2.5 in)
1950	84.6 mm (3.3 in)
1951	94.3 mm (3.7 in)
1952	124.0 mm (4.9 in)
1953	66.1 mm (2.6 in)
1954	110.8 mm (4.4 in)
1955	94.4 mm (3.7 in)
1956	111.3 mm (4.4 in)
1957	84.2 mm (3.3 in)
1958	52.4 mm (2.1 in)
1959	125.4 mm (4.9 in)
1960	73.3 mm (2.9 in)
1961	64.0 mm (2.5 in)
1962	75.0 mm (3.0 in)
1963	63.3 mm (2.5 in)
1964	54.7 mm (2.2 in)
1965	83.8 mm (3.3 in)
1966	91.6 mm (3.6 in)
1967	107.1 mm (4.2 in)
1968	78.0 mm (3.1 in)
1969	123.9 mm (4.9 in)
1970	72.4 mm (2.9 in)
1971	67.3 mm (2.6 in)
1972	75.6 mm (3.0 in)
1973	77.9 mm (3.1 in)
1974	51.1 mm (2.0 in)
1975	55.4 mm (2.2 in)
1976	53.3 mm (2.1 in)
1977	65.8 mm (2.6 in)
1978	55.9 mm (2.2 in)
1979	72.4 mm (2.9 in)
1980	57.9 mm (2.3 in)
1981	80.3 mm (3.2 in)
1982	148.9 mm (5.9 in)
1983	70.4 mm (2.8 in)
1984	65.6 mm (2.6 in)
1985	72.8 mm (2.9 in)
1986	76.0 mm (3.0 in)
1987	109.6 mm (4.3 in)
1988	48.3 mm (1.9 in)
1989	50.0 mm (2.0 in)
1990	73.6 mm (2.9 in)
1991	90.9 mm (3.6 in)
1992	107.8 mm (4.2 in)
1993	107.2 mm (4.2 in)
1994	75.0 mm (3.0 in)
1995	113.0 mm (4.4 in)
1996	115.8 mm (4.6 in)
1997	130.3 mm (5.1 in)
1998	90.4 mm (3.6 in)
1999	112.1 mm (4.4 in)
2000	57.5 mm (2.3 in)
2001	129.9 mm (5.1 in)
2002	90.7 mm (3.6 in)
2003	70.1 mm (2.8 in)
2004	50.3 mm (2.0 in)
2005	65.9 mm (2.6 in)
2006	78.0 mm (3.1 in)
2007	75.2 mm (3.0 in)
2008	64.7 mm (2.5 in)
2009	90.9 mm (3.6 in)
2010	65.2 mm (2.6 in)
2011	113.0 mm (4.4 in)
2012	112.3 mm (4.4 in)
2013	39.6 mm (1.6 in)
2014	92.5 mm (3.6 in)
2015	89.9 mm (3.5 in)
2016	94.5 mm (3.7 in)
2017	107.7 mm (4.2 in)
2018	51.8 mm (2.0 in)
2019	48.0 mm (1.9 in)
2020	59.4 mm (2.3 in)
2021	95.5 mm (3.8 in)
2022	59.0 mm (2.3 in)
2023	57.5 mm (2.3 in)
2024	65.1 mm (2.6 in)
2025	61.0 mm (2.4 in)
2026	31.3 mm (1.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chimacum 4 S, 1926 to 2026. The record is 71 days in 2022, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Chimacum 4 S by year
Year	Longest dry spell (CDD)
1926	19 days
1927	31 days
1928	32 days
1929	22 days
1930	28 days
1931	49 days
1932	27 days
1933	20 days
1934	32 days
1935	22 days
1936	43 days
1937	22 days
1938	35 days
1939	21 days
1940	32 days
1941	33 days
1942	38 days
1943	30 days
1944	13 days
1945	34 days
1946	22 days
1947	29 days
1948	14 days
1949	26 days
1950	19 days
1951	27 days
1952	42 days
1953	20 days
1954	18 days
1955	35 days
1956	26 days
1957	17 days
1958	34 days
1959	19 days
1960	37 days
1961	34 days
1962	19 days
1963	18 days
1964	16 days
1965	23 days
1966	32 days
1967	50 days
1968	24 days
1969	22 days
1970	25 days
1971	21 days
1972	32 days
1973	20 days
1974	53 days
1975	22 days
1976	17 days
1977	29 days
1978	16 days
1979	34 days
1980	16 days
1981	22 days
1982	19 days
1983	17 days
1984	26 days
1985	52 days
1986	55 days
1987	47 days
1988	29 days
1989	29 days
1990	19 days
1991	38 days
1992	28 days
1993	21 days
1994	33 days
1995	17 days
1996	25 days
1997	40 days
1998	21 days
1999	55 days
2000	25 days
2001	33 days
2002	16 days
2003	34 days
2004	25 days
2005	31 days
2006	29 days
2007	21 days
2008	23 days
2009	21 days
2010	26 days
2011	61 days
2012	33 days
2013	36 days
2014	34 days
2015	21 days
2016	22 days
2017	55 days
2018	34 days
2019	24 days
2020	18 days
2021	34 days
2022	71 days
2023	34 days
2024	17 days
2025	22 days
2026	41 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

93 years, 1927 to 2022

A day with at least 39.6 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 60.6 mm (2.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Chimacum 4 S: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.6 mm (1.6 in)
5 years	48.3 mm (1.9 in)
10 years	52.5 mm (2.1 in)
25 years	56.5 mm (2.2 in)
50 years	58.8 mm (2.3 in)
100 years	60.6 mm (2.4 in)	Longer than the 93 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, 93 years of values from 1927 to 2022.

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: 68.8 mm (2.7 in) in 1969; 59.4 mm (2.3 in) in 1951; 54.9 mm (2.2 in) in 1987.

Download the Data

Data for Chimacum 4 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chimacum 4 S 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).