Dallesport 9 N Weather Records (USC00451972)

Record envelope, standing records and threshold days for Dallesport 9 N (USC00451972), Washington, United States, with 33 years of record.

Key Facts for Dallesport 9 N

Dallesport 9 N (USC00451972) is a weather station in Washington, United States at 45.75 latitude and -121.15 longitude, 586 m (1,923 ft) above sea level.
The station reports from 1948 to 1980, 33 years of record.
120 records set at Dallesport 9 N still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Dallesport 9 N set a daily record precipitation of 32.5 mm (1.3 in) on 26 December 1980.

About the Station

Location: Washington, United States, 45.75 latitude, -121.15 longitude.
Elevation: 586 m (1,923 ft).
Period of record: 1948 to 1980, 33 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 Dallesport 9 N. 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 Dallesport 9 N, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	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	37.8 C (100.0 F)	10.6 C (51.1 F)	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	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

120 standing records

120 records at Dallesport 9 N still stand. 1948 holds the most, with 120.

Wettest Day of Each Month

Jan: 48.8 mm (1.9 in)

The wettest day on record for each calendar month at Dallesport 9 N. The most was 48.8 mm (1.9 in) on 27 January 1954.

Record daily precipitation for each month at Dallesport 9 N
Month	Record daily precipitation (mm)	Date
Jan	48.8 mm (1.9 in)	27 January 1954
Feb	38.1 mm (1.5 in)	9 February 1961
Mar	29.7 mm (1.2 in)	5 March 1961
Apr	32.8 mm (1.3 in)	20 April 1958
May	25.1 mm (1.0 in)	26 May 1953
Jun	29.0 mm (1.1 in)	6 June 1958
Jul	17.3 mm (0.7 in)	14 July 1966
Aug	21.6 mm (0.9 in)	20 August 1979
Sep	29.5 mm (1.2 in)	1 September 1971
Oct	30.2 mm (1.2 in)	28 October 1950
Nov	47.2 mm (1.9 in)	24 November 1960
Dec	46.7 mm (1.8 in)	12 December 1977

Period of Record Coverage

1948 to 1948

1 years of record at Dallesport 9 N, 1948 to 1948. 1 years have data for under 90 percent of days and are left out of rankings: 1948.

Latest Records

Latest records at Dallesport 9 N
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
26 December 1980	Dallesport 9 N, US	daily rain	32.5 mm (1.3 in)	11.9 mm (0.5 in)	5 years	19 of 100 (Routine)
25 December 1980	Dallesport 9 N, US	daily rain	43.7 mm (1.7 in)	22.1 mm (0.9 in)	14 years	36 of 100 (Notable)
2 December 1980	Dallesport 9 N, US	daily rain	38.9 mm (1.5 in)	15.8 mm (0.6 in)	3 years	24 of 100 (Routine)
29 November 1980	Dallesport 9 N, US	daily rain	9.4 mm (0.37 in)	1.8 mm (0.07 in)	29 years	13 of 100 (Routine)
7 November 1980	Dallesport 9 N, US	daily rain	27.4 mm (1.1 in)	10.6 mm (0.4 in)	17 years	23 of 100 (Routine)
13 September 1980	Dallesport 9 N, US	daily rain (Tie)	5.6 mm (0.22 in)	tie	25 years	2 of 100 (Routine)
25 June 1980	Dallesport 9 N, US	daily rain	18.3 mm (0.7 in)	18.3 mm (0.7 in)	32 years	20 of 100 (Routine)
14 June 1980	Dallesport 9 N, US	daily rain	13.7 mm (0.5 in)	10.9 mm (0.4 in)	26 years	20 of 100 (Routine)
13 June 1980	Dallesport 9 N, US	daily rain	21.6 mm (0.9 in)	15.2 mm (0.6 in)	32 years	20 of 100 (Routine)
7 June 1980	Dallesport 9 N, US	daily rain	5.1 mm (0.20 in)	2.3 mm (0.09 in)	30 years	17 of 100 (Routine)
26 February 1980	Dallesport 9 N, US	daily rain	19.3 mm (0.8 in)	5.1 mm (0.20 in)	22 years	17 of 100 (Routine)
14 January 1980	Dallesport 9 N, US	daily rain	23.4 mm (0.9 in)	1.0 mm (0.04 in)	28 years	12 of 100 (Routine)
12 January 1980	Dallesport 9 N, US	daily rain	31.8 mm (1.3 in)	8.7 mm (0.34 in)	21 years	20 of 100 (Routine)
9 January 1980	Dallesport 9 N, US	daily rain	34.3 mm (1.4 in)	7.9 mm (0.31 in)	26 years	21 of 100 (Routine)
1 December 1979	Dallesport 9 N, US	daily rain	21.3 mm (0.8 in)	3.0 mm (0.12 in)	21 years	12 of 100 (Routine)
20 October 1979	Dallesport 9 N, US	daily rain	19.8 mm (0.8 in)	4.8 mm (0.19 in)	12 years	13 of 100 (Routine)
18 October 1979	Dallesport 9 N, US	daily rain	21.6 mm (0.9 in)	11.2 mm (0.4 in)	28 years	20 of 100 (Routine)
17 October 1979	Dallesport 9 N, US	daily rain	4.6 mm (0.18 in)	2.1 mm (0.08 in)	25 years	13 of 100 (Routine)
3 September 1979	Dallesport 9 N, US	daily rain	9.7 mm (0.38 in)	8.7 mm (0.34 in)	0 years	19 of 100 (Routine)
2 September 1979	Dallesport 9 N, US	daily rain	11.4 mm (0.4 in)	6.8 mm (0.27 in)	0 years	16 of 100 (Routine)

Extremes by Year

1948 to 1980

Yearly extremes at Dallesport 9 N: 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)	1948	37.8 C (100.0 F)	1
Coldest night (TNn)	10.6 C (51.1 F)	1948	10.6 C (51.1 F)	1
Wettest day (Rx1day)	48.8 mm (1.9 in)	1954	32.5 mm (1.3 in)	33
Wettest five days (Rx5day)	159.3 mm (6.3 in)	1964	70.1 mm (2.8 in)	33
Longest dry spell (CDD)	102 days	1974	48 days	33

Hottest day (TXx)

The hottest day of the year at Dallesport 9 N, 1948 to 1980. The record is 37.8 C (100.0 F) in 1948, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at Dallesport 9 N by year
Year	Hottest day (TXx)
1948	37.8 C (100.0 F)
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

Coldest night (TNn)

The coldest night of the year at Dallesport 9 N, 1948 to 1980. The record is 10.6 C (51.1 F) in 1948, marked on the chart; the median year is 10.6 C (51.1 F).

Coldest night (TNn) at Dallesport 9 N by year
Year	Coldest night (TNn)
1948	10.6 C (51.1 F)
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

Wettest day (Rx1day)

The wettest day of the year at Dallesport 9 N, 1948 to 1980. The record is 48.8 mm (1.9 in) in 1954, marked on the chart; the median year is 32.5 mm (1.3 in).

Wettest day (Rx1day) at Dallesport 9 N by year
Year	Wettest day (Rx1day)
1948	32.5 mm (1.3 in)
1949	25.4 mm (1.0 in)
1950	31.8 mm (1.3 in)
1951	29.5 mm (1.2 in)
1952	23.6 mm (0.9 in)
1953	40.9 mm (1.6 in)
1954	48.8 mm (1.9 in)
1955	34.0 mm (1.3 in)
1956	29.0 mm (1.1 in)
1957	25.4 mm (1.0 in)
1958	32.8 mm (1.3 in)
1959	21.1 mm (0.8 in)
1960	47.2 mm (1.9 in)
1961	38.1 mm (1.5 in)
1962	33.5 mm (1.3 in)
1963	24.6 mm (1.0 in)
1964	45.5 mm (1.8 in)
1965	28.7 mm (1.1 in)
1966	26.2 mm (1.0 in)
1967	28.2 mm (1.1 in)
1968	36.6 mm (1.4 in)
1969	20.1 mm (0.8 in)
1970	40.1 mm (1.6 in)
1971	29.5 mm (1.2 in)
1972	41.9 mm (1.6 in)
1973	32.8 mm (1.3 in)
1974	44.5 mm (1.8 in)
1975	33.5 mm (1.3 in)
1976	26.2 mm (1.0 in)
1977	46.7 mm (1.8 in)
1978	25.4 mm (1.0 in)
1979	24.1 mm (0.9 in)
1980	43.7 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Dallesport 9 N, 1948 to 1980. The record is 159.3 mm (6.3 in) in 1964, marked on the chart; the median year is 70.1 mm (2.8 in).

Wettest five days (Rx5day) at Dallesport 9 N by year
Year	Wettest five days (Rx5day)
1948	75.2 mm (3.0 in)
1949	70.1 mm (2.8 in)
1950	58.9 mm (2.3 in)
1951	81.1 mm (3.2 in)
1952	44.1 mm (1.7 in)
1953	82.4 mm (3.2 in)
1954	74.9 mm (2.9 in)
1955	65.5 mm (2.6 in)
1956	63.6 mm (2.5 in)
1957	58.7 mm (2.3 in)
1958	53.2 mm (2.1 in)
1959	34.6 mm (1.4 in)
1960	88.9 mm (3.5 in)
1961	94.7 mm (3.7 in)
1962	62.2 mm (2.4 in)
1963	66.5 mm (2.6 in)
1964	159.3 mm (6.3 in)
1965	49.1 mm (1.9 in)
1966	87.3 mm (3.4 in)
1967	54.3 mm (2.1 in)
1968	72.9 mm (2.9 in)
1969	66.1 mm (2.6 in)
1970	93.6 mm (3.7 in)
1971	70.1 mm (2.8 in)
1972	85.4 mm (3.4 in)
1973	87.1 mm (3.4 in)
1974	84.9 mm (3.3 in)
1975	61.5 mm (2.4 in)
1976	41.7 mm (1.6 in)
1977	137.9 mm (5.4 in)
1978	37.9 mm (1.5 in)
1979	52.4 mm (2.1 in)
1980	105.2 mm (4.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Dallesport 9 N, 1948 to 1980. The record is 102 days in 1974, marked on the chart; the median year is 48 days.

Longest dry spell (CDD) at Dallesport 9 N by year
Year	Longest dry spell (CDD)
1948	48 days
1949	48 days
1950	57 days
1951	84 days
1952	64 days
1953	54 days
1954	46 days
1955	43 days
1956	44 days
1957	52 days
1958	77 days
1959	79 days
1960	36 days
1961	28 days
1962	70 days
1963	31 days
1964	48 days
1965	39 days
1966	59 days
1967	80 days
1968	39 days
1969	78 days
1970	87 days
1971	67 days
1972	34 days
1973	68 days
1974	102 days
1975	52 days
1976	31 days
1977	43 days
1978	38 days
1979	41 days
1980	21 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

30 years, 1949 to 1979

A day with at least 31.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 58.2 mm (2.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Dallesport 9 N: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.9 mm (1.3 in)
5 years	39.7 mm (1.6 in)
10 years	44.5 mm (1.8 in)
25 years	50.3 mm (2.0 in)
50 years	54.3 mm (2.1 in)	Longer than the 30 years of record
100 years	58.2 mm (2.3 in)	Longer than the 30 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, 30 years of values from 1949 to 1979.

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: 48.8 mm (1.9 in) in 1954; 47.2 mm (1.9 in) in 1960; 46.7 mm (1.8 in) in 1977.

Download the Data

Data for Dallesport 9 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Dallesport 9 N 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 2026-10-13 (13 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).