Keyport Weather Records (USC00454187)

Record envelope, standing records and threshold days for Keyport (USC00454187), Washington, United States, with 44 years of record.

Key Facts for Keyport

Keyport (USC00454187) is a weather station in Washington, United States at 47.70 latitude and -122.62 longitude, 12 m (39 ft) above sea level.
The station reports from 1915 to 1958, 44 years of record.
1,464 records set at Keyport still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Keyport set a daily record precipitation of 45.7 mm (1.8 in) on 26 December 1957.

About the Station

Location: Washington, United States, 47.70 latitude, -122.62 longitude.
Elevation: 12 m (39 ft).
Period of record: 1915 to 1958, 44 years.
Eligible elements: prcp.

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 Keyport. 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 Keyport, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	18.9 C (66.0 F)	-13.3 C (8.1 F)	n/a	n/a
Feb	20.0 C (68.0 F)	-12.2 C (10.0 F)	n/a	n/a
Mar	25.6 C (78.1 F)	-6.7 C (19.9 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-4.4 C (24.1 F)	n/a	n/a
May	32.2 C (90.0 F)	-2.2 C (28.0 F)	n/a	n/a
Jun	36.7 C (98.1 F)	1.1 C (34.0 F)	n/a	n/a
Jul	37.2 C (99.0 F)	3.3 C (37.9 F)	n/a	n/a
Aug	35.0 C (95.0 F)	2.2 C (36.0 F)	n/a	n/a
Sep	32.2 C (90.0 F)	-0.6 C (30.9 F)	n/a	n/a
Oct	31.7 C (89.1 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	20.0 C (68.0 F)	-7.8 C (18.0 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-11.7 C (10.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Keyport still stand. 1916 holds the most, with 149.

Standing records at Keyport by the year they were set
Year set	Standing records
1915	29
1916	149
1917	117
1918	66
1919	20
1920	12
1921	43
1922	58
1923	67
1924	76
1925	29
1926	45
1927	38
1928	51
1929	34
1930	48
1931	56
1932	48
1933	43
1934	46
1935	57
1936	43
1937	40
1938	45
1939	33
1940	40
1941	29
1942	45
1943	43
1944	11
1945	3

Wettest Day of Each Month

Dec: 147.3 mm (5.8 in)

The wettest day on record for each calendar month at Keyport. The most was 147.3 mm (5.8 in) on 7 December 1915.

Record daily precipitation for each month at Keyport
Month	Record daily precipitation (mm)	Date
Jan	86.9 mm (3.4 in)	21 January 1935
Feb	53.3 mm (2.1 in)	24 February 1957
Mar	52.6 mm (2.1 in)	19 March 1945
Apr	39.6 mm (1.6 in)	7 April 1945
May	50.8 mm (2.0 in)	15 May 1945
Jun	31.2 mm (1.2 in)	16 June 1931
Jul	23.4 mm (0.9 in)	26 July 1955
Aug	39.1 mm (1.5 in)	26 August 1926
Sep	60.2 mm (2.4 in)	27 September 1930
Oct	51.1 mm (2.0 in)	18 October 1947
Nov	94.0 mm (3.7 in)	2 November 1955
Dec	147.3 mm (5.8 in)	7 December 1915

Period of Record Coverage

1915 to 1945

31 years of record at Keyport, 1915 to 1945. 9 years have data for under 90 percent of days and are left out of rankings: 1915, 1918, 1919, 1920, 1921, 1924, 1942, 1944 and others.

Days with data per year at Keyport
Year	Days with data	Share of year	Complete
1915	263	72%	No
1916	365	100%	Yes
1917	365	100%	Yes
1918	324	89%	No
1919	119	33%	No
1920	122	33%	No
1921	301	82%	No
1922	360	99%	Yes
1923	357	98%	Yes
1924	254	69%	No
1925	355	97%	Yes
1926	363	99%	Yes
1927	345	95%	Yes
1928	364	99%	Yes
1929	331	91%	Yes
1930	358	98%	Yes
1931	363	99%	Yes
1932	363	99%	Yes
1933	363	99%	Yes
1934	341	93%	Yes
1935	337	92%	Yes
1936	340	93%	Yes
1937	359	98%	Yes
1938	361	99%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	364	100%	Yes
1942	314	86%	No
1943	331	91%	Yes
1944	121	33%	No
1945	31	8%	No

Latest Records

Latest records at Keyport
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 December 1957	Keyport, US	daily rain	45.7 mm (1.8 in)	25.1 mm (1.0 in)	2 years	23 of 100 (Routine)
6 August 1957	Keyport, US	daily rain	2.5 mm (0.10 in)	1.5 mm (0.06 in)	20 years	12 of 100 (Routine)
3 August 1957	Keyport, US	daily rain	2.5 mm (0.10 in)	1.2 mm (0.05 in)	16 years	10 of 100 (Routine)
11 July 1957	Keyport, US	daily rain	1.5 mm (0.06 in)	0.7 mm (0.03 in)	30 years	14 of 100 (Routine)
20 June 1957	Keyport, US	daily rain	11.2 mm (0.4 in)	2.6 mm (0.10 in)	20 years	15 of 100 (Routine)
6 June 1957	Keyport, US	daily rain	17.8 mm (0.7 in)	7.1 mm (0.28 in)	0 years	18 of 100 (Routine)
15 March 1957	Keyport, US	daily rain	20.8 mm (0.8 in)	8.1 mm (0.32 in)	15 years	18 of 100 (Routine)
26 February 1957	Keyport, US	daily rain	31.2 mm (1.2 in)	0.7 mm (0.03 in)	21 years	10 of 100 (Routine)
24 February 1957	Keyport, US	monthly rain	53.3 mm (2.1 in)	6.3 mm (0.25 in)	20 years	27 of 100 (Routine)
21 October 1956	Keyport, US	daily rain	14.2 mm (0.6 in)	2.3 mm (0.09 in)	22 years	13 of 100 (Routine)
27 August 1956	Keyport, US	daily rain	7.1 mm (0.28 in)	0.5 mm (0.02 in)	5 years	5 of 100 (Routine)
2 August 1956	Keyport, US	daily rain	10.4 mm (0.4 in)	2.8 mm (0.11 in)	22 years	14 of 100 (Routine)
1 August 1956	Keyport, US	daily rain	9.7 mm (0.38 in)	9.4 mm (0.37 in)	16 years	20 of 100 (Routine)
14 June 1956	Keyport, US	daily rain	20.8 mm (0.8 in)	1.2 mm (0.05 in)	21 years	12 of 100 (Routine)
12 June 1956	Keyport, US	daily rain	4.1 mm (0.16 in)	1.6 mm (0.06 in)	13 years	10 of 100 (Routine)
6 June 1956	Keyport, US	daily rain	10.7 mm (0.4 in)	5.6 mm (0.22 in)	3 years	15 of 100 (Routine)
3 June 1956	Keyport, US	daily rain	12.7 mm (0.5 in)	2.3 mm (0.09 in)	11 years	11 of 100 (Routine)
10 May 1956	Keyport, US	daily rain	19.8 mm (0.8 in)	9.1 mm (0.36 in)	19 years	20 of 100 (Routine)
22 March 1956	Keyport, US	daily rain	34.8 mm (1.4 in)	18.3 mm (0.7 in)	38 years	40 of 100 (Notable)
4 March 1956	Keyport, US	daily rain	22.9 mm (0.9 in)	5.6 mm (0.22 in)	16 years	15 of 100 (Routine)

Climate Trend

16 complete years, 1916 to 1941

One stripe for each of 16 complete years at Keyport, 1916 to 1941. Blue stripes are years cooler than the station's own mean of 10.8 C (51.4 F); red stripes are warmer. The coolest year was 1916, at 8.8 C (47.8 F), and the warmest was 1941, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.1 C (3.8 F).

Annual mean temperature at Keyport as warming stripes, 1916 to 1941
Year	Annual mean temperature	Difference from the station mean
1916	8.8 C	-2.00 C
1917	9.7 C	-1.04 C
1922	10.2 C	-0.60 C
1923	11.6 C	+0.82 C
1925	10.9 C	+0.16 C
1926	11.5 C	+0.70 C
1928	11.1 C	+0.35 C
1930	10.1 C	-0.65 C
1931	10.8 C	+0.06 C
1932	10.2 C	-0.57 C
1933	10.1 C	-0.73 C
1937	10.5 C	-0.31 C
1938	11.1 C	+0.36 C
1939	11.5 C	+0.72 C
1940	12.1 C	+1.35 C
1941	12.2 C	+1.40 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

1915 to 1958

Yearly extremes at Keyport: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1941	32.8 C (91.0 F)	31
Coldest night (TNn)	-13.3 C (8.1 F)	1917	-7.8 C (18.0 F)	31
Wettest day (Rx1day)	147.3 mm (5.8 in)	1915	47.9 mm (1.9 in)	44
Wettest five days (Rx5day)	211.7 mm (8.3 in)	1933	99.6 mm (3.9 in)	44
Longest dry spell (CDD)	67 days	1930	30 days	44

Hottest day (TXx)

The hottest day of the year at Keyport, 1915 to 1958. The record is 37.2 C (99.0 F) in 1941, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Keyport by year
Year	Hottest day (TXx)
1915	33.3 C (91.9 F)
1916	35.0 C (95.0 F)
1917	31.7 C (89.1 F)
1918	31.7 C (89.1 F)
1919	23.9 C (75.0 F)
1920	26.7 C (80.1 F)
1921	32.2 C (90.0 F)
1922	32.2 C (90.0 F)
1923	32.8 C (91.0 F)
1924	34.4 C (93.9 F)
1925	36.7 C (98.1 F)
1926	33.9 C (93.0 F)
1927	33.9 C (93.0 F)
1928	33.9 C (93.0 F)
1929	30.6 C (87.1 F)
1930	32.2 C (90.0 F)
1931	35.6 C (96.1 F)
1932	32.8 C (91.0 F)
1933	32.8 C (91.0 F)
1934	32.2 C (90.0 F)
1935	33.3 C (91.9 F)
1936	33.3 C (91.9 F)
1937	30.0 C (86.0 F)
1938	33.3 C (91.9 F)
1939	32.2 C (90.0 F)
1940	30.6 C (87.1 F)
1941	37.2 C (99.0 F)
1942	33.9 C (93.0 F)
1943	30.0 C (86.0 F)
1944	26.7 C (80.1 F)
1945	30.0 C (86.0 F)
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

Coldest night (TNn)

The coldest night of the year at Keyport, 1915 to 1958. The record is -13.3 C (8.1 F) in 1917, marked on the chart; the median year is -7.8 C (18.0 F).

Coldest night (TNn) at Keyport by year
Year	Coldest night (TNn)
1915	-7.8 C (18.0 F)
1916	-12.8 C (9.0 F)
1917	-13.3 C (8.1 F)
1918	-10.0 C (14.0 F)
1919	-5.6 C (21.9 F)
1920	-5.6 C (21.9 F)
1921	-6.1 C (21.0 F)
1922	-8.3 C (17.1 F)
1923	-8.3 C (17.1 F)
1924	-11.7 C (10.9 F)
1925	-2.8 C (27.0 F)
1926	-8.9 C (16.0 F)
1927	-9.4 C (15.1 F)
1928	-4.4 C (24.1 F)
1929	-9.4 C (15.1 F)
1930	-10.0 C (14.0 F)
1931	-4.4 C (24.1 F)
1932	-11.1 C (12.0 F)
1933	-12.2 C (10.0 F)
1934	-2.2 C (28.0 F)
1935	-10.6 C (12.9 F)
1936	-7.8 C (18.0 F)
1937	-11.1 C (12.0 F)
1938	-2.8 C (27.0 F)
1939	-2.2 C (28.0 F)
1940	-1.1 C (30.0 F)
1941	-4.4 C (24.1 F)
1942	-6.7 C (19.9 F)
1943	-9.4 C (15.1 F)
1944	-3.3 C (26.1 F)
1945	9.4 C (48.9 F)
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

Wettest day (Rx1day)

The wettest day of the year at Keyport, 1915 to 1958. The record is 147.3 mm (5.8 in) in 1915, marked on the chart; the median year is 47.9 mm (1.9 in).

Wettest day (Rx1day) at Keyport by year
Year	Wettest day (Rx1day)
1915	147.3 mm (5.8 in)
1916	50.8 mm (2.0 in)
1917	37.6 mm (1.5 in)
1918	74.9 mm (2.9 in)
1919	51.3 mm (2.0 in)
1920	54.1 mm (2.1 in)
1921	74.4 mm (2.9 in)
1922	53.3 mm (2.1 in)
1923	48.3 mm (1.9 in)
1924	37.1 mm (1.5 in)
1925	33.8 mm (1.3 in)
1926	40.6 mm (1.6 in)
1927	46.0 mm (1.8 in)
1928	33.0 mm (1.3 in)
1929	43.2 mm (1.7 in)
1930	60.2 mm (2.4 in)
1931	64.3 mm (2.5 in)
1932	52.3 mm (2.1 in)
1933	81.3 mm (3.2 in)
1934	47.5 mm (1.9 in)
1935	86.9 mm (3.4 in)
1936	58.4 mm (2.3 in)
1937	96.5 mm (3.8 in)
1938	19.1 mm (0.8 in)
1939	49.5 mm (1.9 in)
1940	40.6 mm (1.6 in)
1941	50.8 mm (2.0 in)
1942	25.1 mm (1.0 in)
1943	32.5 mm (1.3 in)
1944	53.3 mm (2.1 in)
1945	52.6 mm (2.1 in)
1946	17.8 mm (0.7 in)
1947	57.2 mm (2.3 in)
1948	36.1 mm (1.4 in)
1949	44.5 mm (1.8 in)
1950	37.3 mm (1.5 in)
1951	34.5 mm (1.4 in)
1952	22.6 mm (0.9 in)
1953	44.5 mm (1.8 in)
1954	38.1 mm (1.5 in)
1955	94.0 mm (3.7 in)
1956	38.4 mm (1.5 in)
1957	53.3 mm (2.1 in)
1958	33.0 mm (1.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Keyport, 1915 to 1958. The record is 211.7 mm (8.3 in) in 1933, marked on the chart; the median year is 99.6 mm (3.9 in).

Wettest five days (Rx5day) at Keyport by year
Year	Wettest five days (Rx5day)
1915	147.3 mm (5.8 in)
1916	89.2 mm (3.5 in)
1917	109.5 mm (4.3 in)
1918	84.7 mm (3.3 in)
1919	121.8 mm (4.8 in)
1920	139.7 mm (5.5 in)
1921	105.4 mm (4.1 in)
1922	107.9 mm (4.2 in)
1923	102.9 mm (4.1 in)
1924	75.9 mm (3.0 in)
1925	89.4 mm (3.5 in)
1926	100.0 mm (3.9 in)
1927	106.3 mm (4.2 in)
1928	97.0 mm (3.8 in)
1929	90.7 mm (3.6 in)
1930	64.8 mm (2.6 in)
1931	124.6 mm (4.9 in)
1932	128.9 mm (5.1 in)
1933	211.7 mm (8.3 in)
1934	101.1 mm (4.0 in)
1935	167.0 mm (6.6 in)
1936	116.6 mm (4.6 in)
1937	178.3 mm (7.0 in)
1938	134.6 mm (5.3 in)
1939	109.0 mm (4.3 in)
1940	78.8 mm (3.1 in)
1941	81.5 mm (3.2 in)
1942	42.9 mm (1.7 in)
1943	91.9 mm (3.6 in)
1944	79.3 mm (3.1 in)
1945	78.5 mm (3.1 in)
1946	61.9 mm (2.4 in)
1947	126.1 mm (5.0 in)
1948	85.1 mm (3.4 in)
1949	85.9 mm (3.4 in)
1950	99.1 mm (3.9 in)
1951	68.8 mm (2.7 in)
1952	86.1 mm (3.4 in)
1953	85.0 mm (3.3 in)
1954	125.3 mm (4.9 in)
1955	148.2 mm (5.8 in)
1956	133.4 mm (5.3 in)
1957	87.3 mm (3.4 in)
1958	75.4 mm (3.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Keyport, 1915 to 1958. The record is 67 days in 1930, marked on the chart; the median year is 30 days.

Longest dry spell (CDD) at Keyport by year
Year	Longest dry spell (CDD)
1915	46 days
1916	47 days
1917	64 days
1918	31 days
1919	12 days
1920	9 days
1921	30 days
1922	31 days
1923	14 days
1924	28 days
1925	29 days
1926	63 days
1927	46 days
1928	31 days
1929	24 days
1930	67 days
1931	57 days
1932	30 days
1933	27 days
1934	29 days
1935	25 days
1936	24 days
1937	22 days
1938	13 days
1939	16 days
1940	15 days
1941	39 days
1942	35 days
1943	32 days
1944	57 days
1945	20 days
1946	19 days
1947	10 days
1948	20 days
1949	35 days
1950	31 days
1951	52 days
1952	40 days
1953	47 days
1954	18 days
1955	43 days
1956	41 days
1957	27 days
1958	5 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.

Download the Data

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