Clearwater Weather Records (USC00451496)

Record envelope, standing records and threshold days for Clearwater (USC00451496), Washington, United States, with 123 years of record.

Key Facts for Clearwater

Clearwater (USC00451496) is a weather station in Washington, United States at 47.57 latitude and -124.29 longitude, 24 m (80 ft) above sea level.
The station reports from 1895 to 2017, 123 years of record.
1,464 records set at Clearwater still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Clearwater set a daily record precipitation of 75.2 mm (3.0 in) on 29 March 2017.

About the Station

Location: Washington, United States, 47.57 latitude, -124.29 longitude.
Elevation: 24 m (80 ft).
Period of record: 1895 to 2017, 123 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 Clearwater. 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 Clearwater, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.3 C (64.9 F)	-22.2 C (-8.0 F)	n/a	n/a
Feb	24.4 C (75.9 F)	-18.3 C (-0.9 F)	n/a	n/a
Mar	26.1 C (79.0 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	30.6 C (87.1 F)	-3.9 C (25.0 F)	n/a	n/a
May	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	35.6 C (96.1 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	37.8 C (100.0 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	36.7 C (98.1 F)	-1.1 C (30.0 F)	n/a	n/a
Sep	35.6 C (96.1 F)	-2.8 C (27.0 F)	n/a	n/a
Oct	29.4 C (84.9 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	24.4 C (75.9 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	16.1 C (61.0 F)	-15.6 C (3.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Clearwater still stand. 1950 holds the most, with 42.

Standing records at Clearwater by the year they were set
Year set	Standing records
1895	2
1896	32
1897	2
1898	16
1899	7
1900	15
1901	20
1902	14
1903	15
1904	20
1905	10
1906	20
1907	16
1908	12
1909	25
1910	8
1911	14
1912	7
1913	5
1914	17
1915	10
1916	16
1917	26
1937	1
1939	5
1940	18
1942	14
1943	10
1947	16
1948	10
1949	23
1950	42
1951	21
1952	20
1953	7
1954	21
1955	29
1956	16
1957	11
1958	28
1959	15
1960	22
1961	5
1962	17
1963	16
1964	17
1965	22
1966	9
1967	8
1968	19
1969	12
1970	20
1971	19
1972	29
1973	14
1974	9
1975	14
1976	15
1977	11
1978	15
1979	11
1980	11
1981	20
1982	8
1983	13
1984	9
1985	17
1986	13
1987	23
1988	8
1989	27
1990	12
1991	16
1992	27
1993	18
1994	9
1995	15
1996	14
1997	11
1998	12
1999	8
2000	12
2001	11
2002	18
2003	11
2004	7
2005	25
2006	12
2007	8
2008	15
2009	22
2010	17
2011	9
2012	8
2013	8
2014	17
2015	14
2016	19

All-Time Record Progression

2 new records

2 all-time records were set at Clearwater between 19 July 1971 and 12 July 1972. Each dot is a new record.

When Clearwater set new all-time records
Date	Kind	Detail
1971-07-19	Record high minimum temperature	Record high minimum temperature 23.9 C (75.0 F)
1972-07-12	Record daily precipitation	Record daily precipitation 231.9 mm (9.1 in)

Wettest Day of Each Month

Jul: 231.9 mm (9.1 in)

The wettest day on record for each calendar month at Clearwater. The most was 231.9 mm (9.1 in) on 12 July 1972.

Record daily precipitation for each month at Clearwater
Month	Record daily precipitation (mm)	Date
Jan	188.2 mm (7.4 in)	5 January 2015
Feb	201.7 mm (7.9 in)	13 February 1982
Mar	172.5 mm (6.8 in)	13 March 1908
Apr	162.6 mm (6.4 in)	29 April 1959
May	71.1 mm (2.8 in)	28 May 1939
Jun	101.6 mm (4.0 in)	14 June 1906
Jul	231.9 mm (9.1 in)	12 July 1972
Aug	85.6 mm (3.4 in)	31 August 2010
Sep	144.8 mm (5.7 in)	6 September 1906
Oct	127.0 mm (5.0 in)	25 October 1906
Nov	176.5 mm (6.9 in)	19 November 1962
Dec	203.2 mm (8.0 in)	31 December 1912

Period of Record Coverage

1895 to 2017

99 years of record at Clearwater, 1895 to 2017. 28 years have data for under 90 percent of days and are left out of rankings: 1895, 1896, 1897, 1899, 1902, 1907, 1908, 1909 and others.

Days with data per year at Clearwater
Year	Days with data	Share of year	Complete
1895	26	7%	No
1896	282	77%	No
1897	65	18%	No
1898	364	100%	Yes
1899	281	77%	No
1900	349	96%	Yes
1901	359	98%	Yes
1902	316	87%	No
1903	357	98%	Yes
1904	358	98%	Yes
1905	357	98%	Yes
1906	359	98%	Yes
1907	326	89%	No
1908	199	54%	No
1909	304	83%	No
1910	89	24%	No
1911	232	64%	No
1912	347	95%	Yes
1913	360	99%	Yes
1914	333	91%	Yes
1915	344	94%	Yes
1916	323	88%	No
1917	324	89%	No
1937	1	0%	No
1939	237	65%	No
1940	335	92%	Yes
1942	30	8%	No
1943	46	13%	No
1947	179	49%	No
1948	207	57%	No
1949	355	97%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	363	99%	Yes
1959	360	99%	Yes
1960	358	98%	Yes
1961	360	99%	Yes
1962	363	99%	Yes
1963	332	91%	Yes
1964	364	99%	Yes
1965	361	99%	Yes
1966	347	95%	Yes
1967	361	99%	Yes
1968	364	99%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	363	99%	Yes
1972	365	100%	Yes
1973	303	83%	No
1974	361	99%	Yes
1975	358	98%	Yes
1976	331	90%	Yes
1977	270	74%	No
1978	329	90%	Yes
1979	243	67%	No
1980	306	84%	No
1981	363	99%	Yes
1982	353	97%	Yes
1983	357	98%	Yes
1984	364	99%	Yes
1985	362	99%	Yes
1986	359	98%	Yes
1987	330	90%	Yes
1988	363	99%	Yes
1989	358	98%	Yes
1990	354	97%	Yes
1991	356	98%	Yes
1992	360	98%	Yes
1993	359	98%	Yes
1994	358	98%	Yes
1995	353	97%	Yes
1996	353	96%	Yes
1997	354	97%	Yes
1998	355	97%	Yes
1999	351	96%	Yes
2000	359	98%	Yes
2001	356	98%	Yes
2002	346	95%	Yes
2003	312	85%	No
2004	349	95%	Yes
2005	347	95%	Yes
2006	343	94%	Yes
2007	336	92%	Yes
2008	350	96%	Yes
2009	352	96%	Yes
2010	359	98%	Yes
2011	353	97%	Yes
2012	330	90%	Yes
2013	310	85%	No
2014	304	83%	No
2015	314	86%	No
2016	292	80%	No
2017	83	23%	No

Latest Records

Latest records at Clearwater
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 March 2017	Clearwater, US	daily rain	75.2 mm (3.0 in)	3.3 mm (0.13 in)	36 years	21 of 100 (Routine)
28 March 2017	Clearwater, US	daily rain	76.5 mm (3.0 in)	8.2 mm (0.32 in)	32 years	23 of 100 (Routine)
15 February 2017	Clearwater, US	daily rain	82.6 mm (3.3 in)	15.3 mm (0.6 in)	67 years	38 of 100 (Notable)
4 January 2017	Clearwater, US	daily low min (Tie)	-8.9 C (16.0 F)	tie	58 years	6 of 100 (Routine)
14 December 2016	Clearwater, US	daily low max (Tie)	1.7 C (35.1 F)	tie	102 years	10 of 100 (Routine)
24 November 2016	Clearwater, US	daily rain	84.6 mm (3.3 in)	6.6 mm (0.26 in)	12 years	16 of 100 (Routine)
12 November 2016	Clearwater, US	daily high min	11.1 C (52.0 F)	0.5 C (0.9 F)	59 years	28 of 100 (Routine)
9 November 2016	Clearwater, US	monthly high min (Tie)	13.3 C (55.9 F)	tie	36 years	7 of 100 (Routine)
8 November 2016	Clearwater, US	monthly high min (Tie)	13.3 C (55.9 F)	tie	36 years	7 of 100 (Routine)
5 November 2016	Clearwater, US	daily high min (Tie)	12.2 C (54.0 F)	tie	36 years	5 of 100 (Routine)
13 October 2016	Clearwater, US	daily rain	67.8 mm (2.7 in)	1.5 mm (0.06 in)	4 years	11 of 100 (Routine)
27 August 2016	Clearwater, US	daily high max (Tie)	28.9 C (84.0 F)	tie	110 years	10 of 100 (Routine)
26 August 2016	Clearwater, US	daily high max	31.1 C (88.0 F)	2.2 C (4.0 F)	30 years	25 of 100 (Routine)
25 August 2016	Clearwater, US	daily high max	30.0 C (86.0 F)	1.1 C (2.0 F)	112 years	43 of 100 (Notable)
23 June 2016	Clearwater, US	daily rain	23.4 mm (0.9 in)	0.5 mm (0.02 in)	114 years	20 of 100 (Routine)
4 June 2016	Clearwater, US	daily high max	31.7 C (89.1 F)	1.1 C (2.0 F)	7 years	15 of 100 (Routine)
14 May 2016	Clearwater, US	daily high min (Tie)	11.1 C (52.0 F)	tie	11 years	3 of 100 (Routine)
3 May 2016	Clearwater, US	daily high min	11.7 C (53.1 F)	2.3 C (4.1 F)	26 years	24 of 100 (Routine)
2 May 2016	Clearwater, US	daily high max	28.3 C (82.9 F)	1.6 C (2.9 F)	117 years	44 of 100 (Notable)
22 April 2016	Clearwater, US	daily high min	10.0 C (50.0 F)	1.7 C (3.1 F)	54 years	31 of 100 (Routine)

Climate Trend

64 complete years, 1898 to 2015

One stripe for each of 64 complete years at Clearwater, 1898 to 2015. Blue stripes are years cooler than the station's own mean of 9.8 C (49.6 F); red stripes are warmer. The coolest year was 1955, at 8.3 C (47.0 F), and the warmest was 2015, at 11.0 C (51.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Clearwater as warming stripes, 1898 to 2015
Year	Annual mean temperature	Difference from the station mean
1898	10.1 C	+0.35 C
1900	10.2 C	+0.41 C
1901	9.4 C	-0.31 C
1903	9.4 C	-0.34 C
1904	9.7 C	-0.03 C
1905	9.6 C	-0.17 C
1906	10.4 C	+0.68 C
1912	9.7 C	-0.09 C
1913	9.5 C	-0.29 C
1915	10.2 C	+0.41 C
1949	8.8 C	-0.92 C
1950	8.7 C	-1.03 C
1951	9.3 C	-0.47 C
1952	9.5 C	-0.29 C
1953	10.2 C	+0.44 C
1954	9.1 C	-0.69 C
1955	8.3 C	-1.43 C
1956	9.2 C	-0.54 C
1957	9.9 C	+0.12 C
1958	10.9 C	+1.18 C
1959	9.5 C	-0.26 C
1960	9.3 C	-0.41 C
1961	9.8 C	+0.09 C
1962	9.8 C	+0.05 C
1964	9.5 C	-0.23 C
1965	10.1 C	+0.35 C
1967	10.5 C	+0.73 C
1968	9.8 C	+0.04 C
1969	9.6 C	-0.15 C
1970	9.6 C	-0.14 C
1971	9.4 C	-0.38 C
1972	9.3 C	-0.50 C
1974	9.4 C	-0.34 C
1975	9.2 C	-0.60 C
1981	10.6 C	+0.80 C
1982	9.5 C	-0.29 C
1983	10.4 C	+0.63 C
1984	9.6 C	-0.17 C
1985	9.0 C	-0.76 C
1986	10.6 C	+0.80 C
1988	9.9 C	+0.15 C
1989	9.7 C	-0.03 C
1990	9.9 C	+0.14 C
1991	10.0 C	+0.23 C
1992	10.7 C	+0.98 C
1993	9.7 C	-0.03 C
1994	9.9 C	+0.10 C
1995	10.6 C	+0.86 C
1996	9.7 C	-0.01 C
1997	10.6 C	+0.85 C
1998	10.3 C	+0.50 C
1999	9.3 C	-0.42 C
2000	9.4 C	-0.39 C
2001	9.3 C	-0.46 C
2002	9.5 C	-0.25 C
2004	10.7 C	+0.96 C
2005	10.3 C	+0.51 C
2006	9.8 C	+0.08 C
2007	9.4 C	-0.34 C
2008	9.1 C	-0.67 C
2009	9.5 C	-0.23 C
2010	10.2 C	+0.48 C
2011	9.3 C	-0.46 C
2015	11.0 C	+1.24 C

The fitted trend in annual mean temperature here over 1898 to 2015 is 0.02 C (-0.02 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.04 F (-0.04 to 0.11) 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 Clearwater
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.02 C (-0.02 to 0.06) per decade	0.04 F (-0.04 to 0.11) per decade	1898 to 2015	64	Not clearly different from zero
Mean daily maximum	0.08 C (0.03 to 0.13) per decade	0.1 F (0.1 to 0.2) per decade	1898 to 2015	64	Rise
Mean daily minimum	-0.04 C (-0.09 to 0.01) per decade	-0.07 F (-0.16 to 0.01) per decade	1898 to 2015	64	Not clearly different from zero

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

1895 to 2017

Yearly extremes at Clearwater: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	1907	31.7 C (89.1 F)	99
Coldest night (TNn)	-22.2 C (-8.0 F)	1950	-7.2 C (19.0 F)	98
Wettest day (Rx1day)	231.9 mm (9.1 in)	1972	102.9 mm (4.1 in)	109
Wettest five days (Rx5day)	404.6 mm (15.9 in)	1951	227.3 mm (8.9 in)	109
Longest dry spell (CDD)	64 days	1998	21 days	109

Hottest day (TXx)

The hottest day of the year at Clearwater, 1895 to 2017. The record is 37.8 C (100.0 F) in 1907, marked on the chart; the median year is 31.7 C (89.1 F).

Hottest day (TXx) at Clearwater by year
Year	Hottest day (TXx)
1895	33.9 C (93.0 F)
1896	32.2 C (90.0 F)
1897	27.8 C (82.0 F)
1898	36.1 C (97.0 F)
1899	30.0 C (86.0 F)
1900	28.9 C (84.0 F)
1901	30.6 C (87.1 F)
1902	31.7 C (89.1 F)
1903	30.0 C (86.0 F)
1904	31.1 C (88.0 F)
1905	29.4 C (84.9 F)
1906	35.0 C (95.0 F)
1907	37.8 C (100.0 F)
1908	23.9 C (75.0 F)
1909	25.6 C (78.1 F)
1910	15.6 C (60.1 F)
1911	36.7 C (98.1 F)
1912	33.3 C (91.9 F)
1913	28.3 C (82.9 F)
1914	26.1 C (79.0 F)
1915	30.0 C (86.0 F)
1916	28.3 C (82.9 F)
1917	24.4 C (75.9 F)
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	35.6 C (96.1 F)
1938	n/a
1939	32.2 C (90.0 F)
1940	32.8 C (91.0 F)
1942	36.1 C (97.0 F)
1943	23.3 C (73.9 F)
1947	28.9 C (84.0 F)
1948	29.4 C (84.9 F)
1949	28.9 C (84.0 F)
1950	32.2 C (90.0 F)
1951	32.2 C (90.0 F)
1952	32.8 C (91.0 F)
1953	30.6 C (87.1 F)
1954	26.1 C (79.0 F)
1955	34.4 C (93.9 F)
1956	35.0 C (95.0 F)
1957	32.2 C (90.0 F)
1958	35.0 C (95.0 F)
1959	34.4 C (93.9 F)
1960	36.1 C (97.0 F)
1961	35.0 C (95.0 F)
1962	30.0 C (86.0 F)
1963	35.0 C (95.0 F)
1964	28.9 C (84.0 F)
1965	32.2 C (90.0 F)
1966	30.0 C (86.0 F)
1967	33.9 C (93.0 F)
1968	30.0 C (86.0 F)
1969	30.0 C (86.0 F)
1970	35.6 C (96.1 F)
1971	33.9 C (93.0 F)
1972	33.3 C (91.9 F)
1973	30.0 C (86.0 F)
1974	33.3 C (91.9 F)
1975	30.6 C (87.1 F)
1976	28.9 C (84.0 F)
1977	31.7 C (89.1 F)
1978	33.3 C (91.9 F)
1979	32.8 C (91.0 F)
1980	33.3 C (91.9 F)
1981	36.7 C (98.1 F)
1982	33.3 C (91.9 F)
1983	28.9 C (84.0 F)
1984	28.9 C (84.0 F)
1985	31.7 C (89.1 F)
1986	28.9 C (84.0 F)
1987	32.2 C (90.0 F)
1988	33.9 C (93.0 F)
1989	30.0 C (86.0 F)
1990	31.1 C (88.0 F)
1991	31.7 C (89.1 F)
1992	31.1 C (88.0 F)
1993	32.8 C (91.0 F)
1994	29.4 C (84.9 F)
1995	32.8 C (91.0 F)
1996	32.8 C (91.0 F)
1997	31.7 C (89.1 F)
1998	31.1 C (88.0 F)
1999	30.6 C (87.1 F)
2000	31.7 C (89.1 F)
2001	29.4 C (84.9 F)
2002	31.7 C (89.1 F)
2003	32.8 C (91.0 F)
2004	33.9 C (93.0 F)
2005	32.8 C (91.0 F)
2006	34.4 C (93.9 F)
2007	33.3 C (91.9 F)
2008	35.6 C (96.1 F)
2009	35.0 C (95.0 F)
2010	36.1 C (97.0 F)
2011	29.4 C (84.9 F)
2012	32.2 C (90.0 F)
2013	28.9 C (84.0 F)
2014	32.2 C (90.0 F)
2015	31.1 C (88.0 F)
2016	32.2 C (90.0 F)
2017	14.4 C (57.9 F)

Coldest night (TNn)

The coldest night of the year at Clearwater, 1895 to 2017. The record is -22.2 C (-8.0 F) in 1950, marked on the chart; the median year is -7.2 C (19.0 F).

Coldest night (TNn) at Clearwater by year
Year	Coldest night (TNn)
1895	5.0 C (41.0 F)
1896	-8.9 C (16.0 F)
1897	-2.8 C (27.0 F)
1898	-5.6 C (21.9 F)
1899	-11.7 C (10.9 F)
1900	-5.6 C (21.9 F)
1901	-2.8 C (27.0 F)
1902	-8.3 C (17.1 F)
1903	-3.9 C (25.0 F)
1904	-3.9 C (25.0 F)
1905	-6.1 C (21.0 F)
1906	-7.8 C (18.0 F)
1907	-10.6 C (12.9 F)
1908	-7.2 C (19.0 F)
1909	-8.3 C (17.1 F)
1910	-7.8 C (18.0 F)
1911	-7.2 C (19.0 F)
1912	-6.7 C (19.9 F)
1913	-5.0 C (23.0 F)
1914	-3.9 C (25.0 F)
1915	-3.9 C (25.0 F)
1916	-7.8 C (18.0 F)
1917	-8.3 C (17.1 F)
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	-1.7 C (28.9 F)
1940	-3.3 C (26.1 F)
1942	7.2 C (45.0 F)
1943	-1.1 C (30.0 F)
1947	-7.2 C (19.0 F)
1948	-7.2 C (19.0 F)
1949	-10.6 C (12.9 F)
1950	-22.2 C (-8.0 F)
1951	-10.6 C (12.9 F)
1952	-6.7 C (19.9 F)
1953	-3.9 C (25.0 F)
1954	-6.1 C (21.0 F)
1955	-12.2 C (10.0 F)
1956	-11.1 C (12.0 F)
1957	-7.8 C (18.0 F)
1958	-6.1 C (21.0 F)
1959	-8.9 C (16.0 F)
1960	-7.8 C (18.0 F)
1961	-6.7 C (19.9 F)
1962	-10.6 C (12.9 F)
1963	-8.9 C (16.0 F)
1964	-10.6 C (12.9 F)
1965	-4.4 C (24.1 F)
1966	-3.3 C (26.1 F)
1967	-6.1 C (21.0 F)
1968	-11.1 C (12.0 F)
1969	-11.1 C (12.0 F)
1970	-6.1 C (21.0 F)
1971	-6.1 C (21.0 F)
1972	-13.9 C (7.0 F)
1973	-11.1 C (12.0 F)
1974	-11.1 C (12.0 F)
1975	-6.1 C (21.0 F)
1976	-6.1 C (21.0 F)
1977	-7.8 C (18.0 F)
1978	-13.9 C (7.0 F)
1979	-15.0 C (5.0 F)
1980	-3.9 C (25.0 F)
1981	-5.6 C (21.9 F)
1982	-10.6 C (12.9 F)
1983	-15.6 C (3.9 F)
1984	-7.2 C (19.0 F)
1985	-11.7 C (10.9 F)
1986	-7.2 C (19.0 F)
1987	-5.0 C (23.0 F)
1988	-5.6 C (21.9 F)
1989	-13.9 C (7.0 F)
1990	-12.2 C (10.0 F)
1991	-5.0 C (23.0 F)
1992	-6.7 C (19.9 F)
1993	-9.4 C (15.1 F)
1994	-5.6 C (21.9 F)
1995	-5.6 C (21.9 F)
1996	-8.9 C (16.0 F)
1997	-6.1 C (21.0 F)
1998	-9.4 C (15.1 F)
1999	-4.4 C (24.1 F)
2000	-6.1 C (21.0 F)
2001	-6.7 C (19.9 F)
2002	-5.6 C (21.9 F)
2003	-6.7 C (19.9 F)
2004	-6.7 C (19.9 F)
2005	-7.8 C (18.0 F)
2006	-10.0 C (14.0 F)
2007	-6.1 C (21.0 F)
2008	-7.8 C (18.0 F)
2009	-11.1 C (12.0 F)
2010	-8.9 C (16.0 F)
2011	-7.8 C (18.0 F)
2012	-5.0 C (23.0 F)
2013	-10.6 C (12.9 F)
2014	-7.2 C (19.0 F)
2015	-6.7 C (19.9 F)
2016	-7.2 C (19.0 F)
2017	-9.4 C (15.1 F)

Wettest day (Rx1day)

The wettest day of the year at Clearwater, 1895 to 2017. The record is 231.9 mm (9.1 in) in 1972, marked on the chart; the median year is 102.9 mm (4.1 in).

Wettest day (Rx1day) at Clearwater by year
Year	Wettest day (Rx1day)
1895	16.3 mm (0.6 in)
1896	111.8 mm (4.4 in)
1897	119.4 mm (4.7 in)
1898	110.5 mm (4.4 in)
1899	104.6 mm (4.1 in)
1900	89.7 mm (3.5 in)
1901	87.9 mm (3.5 in)
1902	70.4 mm (2.8 in)
1903	63.5 mm (2.5 in)
1904	61.0 mm (2.4 in)
1905	86.6 mm (3.4 in)
1906	144.8 mm (5.7 in)
1907	102.9 mm (4.1 in)
1908	172.5 mm (6.8 in)
1909	76.2 mm (3.0 in)
1910	86.4 mm (3.4 in)
1911	142.2 mm (5.6 in)
1912	203.2 mm (8.0 in)
1913	78.7 mm (3.1 in)
1914	90.4 mm (3.6 in)
1915	77.5 mm (3.1 in)
1916	104.9 mm (4.1 in)
1917	66.0 mm (2.6 in)
1928	49.3 mm (1.9 in)
1929	39.9 mm (1.6 in)
1930	116.8 mm (4.6 in)
1931	133.4 mm (5.3 in)
1932	116.8 mm (4.6 in)
1933	141.7 mm (5.6 in)
1934	99.6 mm (3.9 in)
1935	109.0 mm (4.3 in)
1936	78.7 mm (3.1 in)
1937	82.8 mm (3.3 in)
1938	101.6 mm (4.0 in)
1939	101.6 mm (4.0 in)
1940	81.3 mm (3.2 in)
1942	27.2 mm (1.1 in)
1943	0.0 mm (0.00 in)
1947	61.5 mm (2.4 in)
1948	123.2 mm (4.9 in)
1949	123.4 mm (4.9 in)
1950	119.4 mm (4.7 in)
1951	166.1 mm (6.5 in)
1952	76.2 mm (3.0 in)
1953	102.9 mm (4.1 in)
1954	102.9 mm (4.1 in)
1955	120.7 mm (4.8 in)
1956	149.9 mm (5.9 in)
1957	68.1 mm (2.7 in)
1958	68.1 mm (2.7 in)
1959	162.6 mm (6.4 in)
1960	72.4 mm (2.9 in)
1961	109.2 mm (4.3 in)
1962	176.5 mm (6.9 in)
1963	120.7 mm (4.8 in)
1964	103.4 mm (4.1 in)
1965	118.6 mm (4.7 in)
1966	125.0 mm (4.9 in)
1967	117.3 mm (4.6 in)
1968	129.5 mm (5.1 in)
1969	115.3 mm (4.5 in)
1970	94.0 mm (3.7 in)
1971	174.0 mm (6.9 in)
1972	231.9 mm (9.1 in)
1973	87.9 mm (3.5 in)
1974	99.6 mm (3.9 in)
1975	100.3 mm (3.9 in)
1976	126.2 mm (5.0 in)
1977	89.4 mm (3.5 in)
1978	115.3 mm (4.5 in)
1979	156.0 mm (6.1 in)
1980	92.7 mm (3.6 in)
1981	111.8 mm (4.4 in)
1982	201.7 mm (7.9 in)
1983	131.6 mm (5.2 in)
1984	113.0 mm (4.4 in)
1985	88.6 mm (3.5 in)
1986	126.0 mm (5.0 in)
1987	71.1 mm (2.8 in)
1988	60.2 mm (2.4 in)
1989	72.4 mm (2.9 in)
1990	79.2 mm (3.1 in)
1991	79.0 mm (3.1 in)
1992	119.6 mm (4.7 in)
1993	106.4 mm (4.2 in)
1994	79.5 mm (3.1 in)
1995	71.1 mm (2.8 in)
1996	61.7 mm (2.4 in)
1997	60.5 mm (2.4 in)
1998	59.9 mm (2.4 in)
1999	59.9 mm (2.4 in)
2000	58.2 mm (2.3 in)
2001	68.6 mm (2.7 in)
2002	96.0 mm (3.8 in)
2003	108.0 mm (4.3 in)
2004	78.0 mm (3.1 in)
2005	145.0 mm (5.7 in)
2006	112.3 mm (4.4 in)
2007	140.5 mm (5.5 in)
2008	108.0 mm (4.3 in)
2009	107.4 mm (4.2 in)
2010	125.2 mm (4.9 in)
2011	108.7 mm (4.3 in)
2012	95.3 mm (3.8 in)
2013	151.1 mm (5.9 in)
2014	70.1 mm (2.8 in)
2015	188.2 mm (7.4 in)
2016	91.7 mm (3.6 in)
2017	82.6 mm (3.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Clearwater, 1895 to 2017. The record is 404.6 mm (15.9 in) in 1951, marked on the chart; the median year is 227.3 mm (8.9 in).

Wettest five days (Rx5day) at Clearwater by year
Year	Wettest five days (Rx5day)
1895	21.4 mm (0.8 in)
1896	232.9 mm (9.2 in)
1897	227.3 mm (8.9 in)
1898	255.5 mm (10.1 in)
1899	274.3 mm (10.8 in)
1900	251.2 mm (9.9 in)
1901	185.0 mm (7.3 in)
1902	175.7 mm (6.9 in)
1903	193.1 mm (7.6 in)
1904	184.4 mm (7.3 in)
1905	210.1 mm (8.3 in)
1906	343.4 mm (13.5 in)
1907	279.0 mm (11.0 in)
1908	345.8 mm (13.6 in)
1909	149.9 mm (5.9 in)
1910	184.1 mm (7.2 in)
1911	248.6 mm (9.8 in)
1912	203.2 mm (8.0 in)
1913	216.9 mm (8.5 in)
1914	195.0 mm (7.7 in)
1915	188.8 mm (7.4 in)
1916	156.2 mm (6.1 in)
1917	142.6 mm (5.6 in)
1928	92.7 mm (3.6 in)
1929	145.3 mm (5.7 in)
1930	157.0 mm (6.2 in)
1931	187.0 mm (7.4 in)
1932	361.1 mm (14.2 in)
1933	308.8 mm (12.2 in)
1934	221.7 mm (8.7 in)
1935	213.6 mm (8.4 in)
1936	187.7 mm (7.4 in)
1937	246.2 mm (9.7 in)
1938	203.5 mm (8.0 in)
1939	263.0 mm (10.4 in)
1940	228.9 mm (9.0 in)
1942	55.1 mm (2.2 in)
1943	0.0 mm (0.00 in)
1947	99.4 mm (3.9 in)
1948	227.4 mm (9.0 in)
1949	255.2 mm (10.0 in)
1950	223.7 mm (8.8 in)
1951	404.6 mm (15.9 in)
1952	154.2 mm (6.1 in)
1953	264.8 mm (10.4 in)
1954	289.4 mm (11.4 in)
1955	233.4 mm (9.2 in)
1956	245.1 mm (9.6 in)
1957	199.7 mm (7.9 in)
1958	165.1 mm (6.5 in)
1959	293.8 mm (11.6 in)
1960	215.4 mm (8.5 in)
1961	323.6 mm (12.7 in)
1962	245.1 mm (9.6 in)
1963	288.8 mm (11.4 in)
1964	180.0 mm (7.1 in)
1965	247.2 mm (9.7 in)
1966	273.8 mm (10.8 in)
1967	252.0 mm (9.9 in)
1968	360.5 mm (14.2 in)
1969	224.5 mm (8.8 in)
1970	228.6 mm (9.0 in)
1971	327.6 mm (12.9 in)
1972	313.4 mm (12.3 in)
1973	249.3 mm (9.8 in)
1974	234.7 mm (9.2 in)
1975	286.0 mm (11.3 in)
1976	162.0 mm (6.4 in)
1977	298.2 mm (11.7 in)
1978	184.2 mm (7.3 in)
1979	379.1 mm (14.9 in)
1980	220.0 mm (8.7 in)
1981	217.9 mm (8.6 in)
1982	380.3 mm (15.0 in)
1983	301.8 mm (11.9 in)
1984	282.0 mm (11.1 in)
1985	174.6 mm (6.9 in)
1986	236.8 mm (9.3 in)
1987	187.9 mm (7.4 in)
1988	155.6 mm (6.1 in)
1989	239.5 mm (9.4 in)
1990	212.5 mm (8.4 in)
1991	244.3 mm (9.6 in)
1992	241.5 mm (9.5 in)
1993	216.6 mm (8.5 in)
1994	204.0 mm (8.0 in)
1995	240.7 mm (9.5 in)
1996	152.0 mm (6.0 in)
1997	202.7 mm (8.0 in)
1998	213.1 mm (8.4 in)
1999	210.8 mm (8.3 in)
2000	110.5 mm (4.4 in)
2001	208.2 mm (8.2 in)
2002	206.0 mm (8.1 in)
2003	228.1 mm (9.0 in)
2004	172.4 mm (6.8 in)
2005	306.7 mm (12.1 in)
2006	274.0 mm (10.8 in)
2007	257.0 mm (10.1 in)
2008	251.2 mm (9.9 in)
2009	320.8 mm (12.6 in)
2010	301.5 mm (11.9 in)
2011	233.8 mm (9.2 in)
2012	189.6 mm (7.5 in)
2013	319.2 mm (12.6 in)
2014	183.6 mm (7.2 in)
2015	302.2 mm (11.9 in)
2016	214.2 mm (8.4 in)
2017	179.9 mm (7.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Clearwater, 1895 to 2017. The record is 64 days in 1998, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Clearwater by year
Year	Longest dry spell (CDD)
1895	7 days
1896	32 days
1897	12 days
1898	31 days
1899	16 days
1900	12 days
1901	39 days
1902	14 days
1903	16 days
1904	40 days
1905	18 days
1906	32 days
1907	20 days
1908	7 days
1909	11 days
1910	4 days
1911	13 days
1912	21 days
1913	19 days
1914	16 days
1915	18 days
1916	27 days
1917	21 days
1928	23 days
1929	14 days
1930	27 days
1931	18 days
1932	6 days
1933	5 days
1934	2 days
1935	1 day
1936	2 days
1937	3 days
1938	5 days
1939	39 days
1940	19 days
1942	14 days
1943	15 days
1947	21 days
1948	12 days
1949	19 days
1950	26 days
1951	29 days
1952	20 days
1953	20 days
1954	14 days
1955	24 days
1956	21 days
1957	14 days
1958	34 days
1959	26 days
1960	49 days
1961	29 days
1962	16 days
1963	22 days
1964	8 days
1965	28 days
1966	11 days
1967	20 days
1968	23 days
1969	23 days
1970	23 days
1971	20 days
1972	34 days
1973	25 days
1974	26 days
1975	20 days
1976	17 days
1977	25 days
1978	11 days
1979	31 days
1980	15 days
1981	20 days
1982	18 days
1983	25 days
1984	16 days
1985	26 days
1986	41 days
1987	31 days
1988	32 days
1989	25 days
1990	39 days
1991	45 days
1992	21 days
1993	21 days
1994	34 days
1995	19 days
1996	13 days
1997	29 days
1998	64 days
1999	17 days
2000	30 days
2001	17 days
2002	28 days
2003	23 days
2004	25 days
2005	35 days
2006	23 days
2007	15 days
2008	22 days
2009	23 days
2010	27 days
2011	21 days
2012	34 days
2013	44 days
2014	18 days
2015	12 days
2016	14 days
2017	6 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 Clearwater falls on 4 May and the median first autumn frost on 16 October, which leaves a median of 162 days between them.

In 1981 to 2015 the median growing season was 160 days. That is 13 days fewer than in 1898 to 1970.

Fitted over all years, the growing season changes by -2.4 days per decade at this station.

Frost dates and growing season at Clearwater
Measure	Median, all years	Earliest period (1898 to 1970)	Recent period (1981 to 2015)	Recent against earliest	Fitted trend
Last spring frost	4 May	3 May	3 May	no change	+0.5 days per decade
First autumn frost	16 October	22 October	13 October	9 days earlier	-1.8 days per decade
Growing days	162 days	173 days	160 days	13 days fewer	-2.4 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

76 years, 1898 to 2015

A day with at least 100.0 mm (3.9 in) of rain is expected about once in 2 years. A day with at least 229.4 mm (9.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Clearwater: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	100.0 mm (3.9 in)
5 years	133.1 mm (5.2 in)
10 years	155.6 mm (6.1 in)
25 years	184.8 mm (7.3 in)
50 years	206.9 mm (8.1 in)
100 years	229.4 mm (9.0 in)	Longer than the 76 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, 76 years of values from 1898 to 2015.

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: 231.9 mm (9.1 in) in 1972; 203.2 mm (8.0 in) in 1912; 201.7 mm (7.9 in) in 1982.

Station Changes

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

Download the Data

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