Keno Weather Records (USC00354403)

Record envelope, standing records and threshold days for Keno (USC00354403), Oregon, United States, with 99 years of record.

Key Facts for Keno

Keno (USC00354403) is a weather station in Oregon, United States at 42.09 latitude and -121.90 longitude, 1,258 m (4,128 ft) above sea level.
The station reports from 1927 to 2025, 99 years of record.
1,464 records set at Keno still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Keno set a daily record snow depth of 66.0 cm (26.0 in) on 13 February 2025.

About the Station

Location: Oregon, United States, 42.09 latitude, -121.90 longitude.
Elevation: 1,258 m (4,128 ft).
Period of record: 1927 to 2025, 99 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

7 days at or beyond a record

The band shows the record high and record low for each calendar day at Keno. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Keno, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.6 C (60.1 F)	-28.9 C (-20.0 F)	10.0 C (50.0 F)	-10.6 C (12.9 F)
Feb	18.3 C (64.9 F)	-23.3 C (-9.9 F)	5.6 C (42.1 F)	-23.3 C (-9.9 F)
Mar	24.4 C (75.9 F)	-17.2 C (1.0 F)	n/a	n/a
Apr	28.9 C (84.0 F)	-10.0 C (14.0 F)	n/a	n/a
May	32.8 C (91.0 F)	-6.1 C (21.0 F)	n/a	n/a
Jun	37.8 C (100.0 F)	-5.0 C (23.0 F)	n/a	n/a
Jul	40.0 C (104.0 F)	-1.1 C (30.0 F)	n/a	n/a
Aug	38.9 C (102.0 F)	1.1 C (34.0 F)	n/a	n/a
Sep	37.8 C (100.0 F)	-3.3 C (26.1 F)	n/a	n/a
Oct	30.6 C (87.1 F)	-11.1 C (12.0 F)	n/a	n/a
Nov	21.7 C (71.1 F)	-15.6 C (3.9 F)	n/a	n/a
Dec	13.9 C (57.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Keno still stand. 2015 holds the most, with 125.

Standing records at Keno by the year they were set
Year set	Standing records
1942	6
1967	50
1970	7
1971	22
1972	18
1973	46
1974	43
1975	16
1976	7
1978	20
1979	11
2011	91
2012	90
2013	120
2014	108
2015	125
2016	90
2017	94
2018	77
2019	74
2020	69
2021	32
2022	54
2023	97
2024	82
2025	15

All-Time Record Progression

3 new records

3 all-time records were set at Keno between 25 November 1961 and 7 January 1998. Each dot is a new record.

When Keno set new all-time records
Date	Kind	Detail
1961-11-25	Record daily snowfall	Record daily snowfall 48.3 cm (19.0 in)
1964-12-22	Record daily precipitation	Record daily precipitation 94.7 mm (3.7 in)
1998-01-07	Record daily precipitation	Record daily precipitation 152.4 mm (6.0 in)

Wettest Day of Each Month

Jan: 152.4 mm (6.0 in)

The wettest day on record for each calendar month at Keno. The most was 152.4 mm (6.0 in) on 7 January 1998.

Record daily precipitation for each month at Keno
Month	Record daily precipitation (mm)	Date
Jan	152.4 mm (6.0 in)	7 January 1998
Feb	43.4 mm (1.7 in)	8 February 1960
Mar	45.2 mm (1.8 in)	26 March 1928
Apr	42.7 mm (1.7 in)	28 April 2005
May	31.0 mm (1.2 in)	23 May 1990
Jun	33.8 mm (1.3 in)	8 June 1977
Jul	25.4 mm (1.0 in)	18 July 1987
Aug	39.4 mm (1.6 in)	31 August 1984
Sep	50.8 mm (2.0 in)	27 September 1957
Oct	55.9 mm (2.2 in)	10 October 1962
Nov	86.4 mm (3.4 in)	30 November 1998
Dec	139.7 mm (5.5 in)	22 December 2007

Period of Record Coverage

1942 to 2025

26 years of record at Keno, 1942 to 2025. 15 years have data for under 90 percent of days and are left out of rankings: 1942, 1967, 1970, 1971, 1972, 1973, 1974, 1975 and others.

Days with data per year at Keno
Year	Days with data	Share of year	Complete
1942	28	8%	No
1967	135	37%	No
1970	15	4%	No
1971	71	19%	No
1972	31	8%	No
1973	121	33%	No
1974	150	41%	No
1975	31	8%	No
1976	30	8%	No
1978	92	25%	No
1979	28	8%	No
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	277	76%	No
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	364	99%	Yes
2021	161	44%	No
2022	160	44%	No
2023	361	99%	Yes
2024	366	100%	Yes
2025	50	14%	No

Latest Records

Latest records at Keno
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 February 2025	Keno, US	daily snow depth	66.0 cm (26.0 in)	5.0 cm (2.0 in)	88 years	37 of 100 (Notable)
12 February 2025	Keno, US	daily snow depth	63.5 cm (25.0 in)	5.1 cm (2.0 in)	88 years	37 of 100 (Notable)
11 February 2025	Keno, US	daily snow depth (Tie)	63.5 cm (25.0 in)	tie	88 years	8 of 100 (Routine)
10 February 2025	Keno, US	daily snow depth (Tie)	66.0 cm (26.0 in)	tie	88 years	8 of 100 (Routine)
8 February 2025	Keno, US	monthly snow depth (Tie)	76.2 cm (30.0 in)	tie	0 years	4 of 100 (Routine)
7 February 2025	Keno, US	monthly snow depth	76.2 cm (30.0 in)	5.1 cm (2.0 in)	87 years	47 of 100 (Notable)
7 February 2025	Keno, US	daily snowfall	30.5 cm (12.0 in)	12.7 cm (5.0 in)	8 years	36 of 100 (Notable)
3 February 2025	Keno, US	daily snowfall	22.9 cm (9.0 in)	12.7 cm (5.0 in)	76 years	56 of 100 (Notable)
3 February 2025	Keno, US	daily rain	18.5 mm (0.7 in)	1.0 mm (0.04 in)	62 years	20 of 100 (Routine)
24 December 2024	Keno, US	daily rain	27.9 mm (1.1 in)	4.5 mm (0.18 in)	41 years	25 of 100 (Routine)
20 November 2024	Keno, US	daily snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	51 years	32 of 100 (Routine)
2 November 2024	Keno, US	daily rain	22.9 mm (0.9 in)	6.4 mm (0.25 in)	40 years	20 of 100 (Routine)
14 April 2024	Keno, US	daily rain	11.4 mm (0.4 in)	0.7 mm (0.03 in)	57 years	20 of 100 (Routine)
29 March 2024	Keno, US	daily snowfall	6.4 cm (2.5 in)	2.6 cm (1.0 in)	70 years	36 of 100 (Notable)
4 March 2024	Keno, US	daily rain (Tie)	12.7 mm (0.5 in)	tie	15 years	3 of 100 (Routine)
20 February 2024	Keno, US	daily rain	32.3 mm (1.3 in)	16.6 mm (0.7 in)	48 years	51 of 100 (Notable)
14 January 2024	Keno, US	daily rain	44.5 mm (1.8 in)	18.6 mm (0.7 in)	68 years	50 of 100 (Notable)
11 January 2024	Keno, US	daily snowfall	15.2 cm (6.0 in)	2.5 cm (1.0 in)	54 years	29 of 100 (Routine)
10 January 2024	Keno, US	daily rain	25.4 mm (1.0 in)	2.0 mm (0.08 in)	28 years	19 of 100 (Routine)
22 August 2023	Keno, US	daily rain	17.3 mm (0.7 in)	13.2 mm (0.5 in)	40 years	20 of 100 (Routine)

Climate Trend

11 complete years, 2011 to 2024

One stripe for each of 11 complete years at Keno, 2011 to 2024. Blue stripes are years cooler than the station's own mean of 8.6 C (47.5 F); red stripes are warmer. The coolest year was 2011, at 7.5 C (45.5 F), and the warmest was 2014, at 10.0 C (50.1 F). The strongest colour marks a difference of 1.5 C (2.7 F).

Annual mean temperature at Keno as warming stripes, 2011 to 2024
Year	Annual mean temperature	Difference from the station mean
2011	7.5 C	-1.10 C
2012	8.6 C	-0.02 C
2013	8.0 C	-0.60 C
2014	10.0 C	+1.44 C
2016	8.9 C	+0.31 C
2017	8.4 C	-0.16 C
2018	8.8 C	+0.18 C
2019	8.2 C	-0.38 C
2020	9.2 C	+0.63 C
2023	7.9 C	-0.66 C
2024	9.0 C	+0.40 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

1927 to 2025

Yearly extremes at Keno: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.0 C (104.0 F)	2022	35.6 C (96.0 F)	26
Coldest night (TNn)	-28.9 C (-20.0 F)	2017	-16.1 C (3.0 F)	25
Wettest day (Rx1day)	152.4 mm (6.0 in)	1998	34.0 mm (1.3 in)	99
Wettest five days (Rx5day)	227.4 mm (9.0 in)	1964	67.3 mm (2.6 in)	99
Longest dry spell (CDD)	113 days	1970	49 days	99

Hottest day (TXx)

The hottest day of the year at Keno, 1927 to 2025. The record is 40.0 C (104.0 F) in 2022, marked on the chart; the median year is 35.6 C (96.0 F).

Hottest day (TXx) at Keno by year
Year	Hottest day (TXx)
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	10.0 C (50.0 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	33.9 C (93.0 F)
1968	n/a
1969	n/a
1970	32.8 C (91.0 F)
1971	17.2 C (63.0 F)
1972	7.8 C (46.0 F)
1973	36.1 C (97.0 F)
1974	32.2 C (90.0 F)
1975	13.3 C (55.9 F)
1976	32.8 C (91.0 F)
1977	n/a
1978	37.2 C (99.0 F)
1979	10.6 C (51.1 F)
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	34.4 C (93.9 F)
2012	37.2 C (99.0 F)
2013	39.4 C (102.9 F)
2014	37.8 C (100.0 F)
2015	39.4 C (102.9 F)
2016	38.3 C (100.9 F)
2017	38.9 C (102.0 F)
2018	36.7 C (98.1 F)
2019	34.4 C (93.9 F)
2020	36.7 C (98.1 F)
2021	35.0 C (95.0 F)
2022	40.0 C (104.0 F)
2023	36.7 C (98.1 F)
2024	40.0 C (104.0 F)
2025	10.0 C (50.0 F)

Coldest night (TNn)

The coldest night of the year at Keno, 1927 to 2025. The record is -28.9 C (-20.0 F) in 2017, marked on the chart; the median year is -16.1 C (3.0 F).

Coldest night (TNn) at Keno by year
Year	Coldest night (TNn)
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	-18.9 C (-2.0 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	-11.7 C (10.9 F)
1968	n/a
1969	n/a
1970	-0.6 C (30.9 F)
1971	-17.8 C (0.0 F)
1972	-21.7 C (-7.1 F)
1973	-9.4 C (15.1 F)
1974	-17.2 C (1.0 F)
1975	-11.1 C (12.0 F)
1976	n/a
1977	n/a
1978	-18.3 C (-0.9 F)
1979	-17.2 C (1.0 F)
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	-21.1 C (-6.0 F)
2012	-15.0 C (5.0 F)
2013	-27.8 C (-18.0 F)
2014	-12.8 C (9.0 F)
2015	-20.6 C (-5.1 F)
2016	-22.2 C (-8.0 F)
2017	-28.9 C (-20.0 F)
2018	-15.6 C (3.9 F)
2019	-16.1 C (3.0 F)
2020	-15.0 C (5.0 F)
2021	-11.7 C (10.9 F)
2022	-13.3 C (8.1 F)
2023	-16.1 C (3.0 F)
2024	-12.2 C (10.0 F)
2025	-23.3 C (-9.9 F)

Wettest day (Rx1day)

The wettest day of the year at Keno, 1927 to 2025. The record is 152.4 mm (6.0 in) in 1998, marked on the chart; the median year is 34.0 mm (1.3 in).

Wettest day (Rx1day) at Keno by year
Year	Wettest day (Rx1day)
1927	41.4 mm (1.6 in)
1928	45.2 mm (1.8 in)
1929	51.1 mm (2.0 in)
1930	24.1 mm (0.9 in)
1931	33.8 mm (1.3 in)
1932	18.8 mm (0.7 in)
1933	26.4 mm (1.0 in)
1934	31.0 mm (1.2 in)
1935	20.6 mm (0.8 in)
1936	25.9 mm (1.0 in)
1937	47.8 mm (1.9 in)
1938	21.6 mm (0.9 in)
1939	65.8 mm (2.6 in)
1940	38.9 mm (1.5 in)
1941	34.0 mm (1.3 in)
1942	28.4 mm (1.1 in)
1943	66.5 mm (2.6 in)
1944	13.5 mm (0.5 in)
1945	25.1 mm (1.0 in)
1946	51.1 mm (2.0 in)
1947	23.1 mm (0.9 in)
1948	30.5 mm (1.2 in)
1949	24.9 mm (1.0 in)
1950	44.2 mm (1.7 in)
1951	31.2 mm (1.2 in)
1952	42.7 mm (1.7 in)
1953	55.6 mm (2.2 in)
1954	23.1 mm (0.9 in)
1955	56.1 mm (2.2 in)
1956	51.3 mm (2.0 in)
1957	50.8 mm (2.0 in)
1958	21.6 mm (0.9 in)
1959	36.1 mm (1.4 in)
1960	43.4 mm (1.7 in)
1961	49.5 mm (1.9 in)
1962	55.9 mm (2.2 in)
1963	35.1 mm (1.4 in)
1964	94.7 mm (3.7 in)
1965	29.5 mm (1.2 in)
1966	35.3 mm (1.4 in)
1967	21.8 mm (0.9 in)
1968	20.8 mm (0.8 in)
1969	62.7 mm (2.5 in)
1970	41.4 mm (1.6 in)
1971	23.6 mm (0.9 in)
1972	57.2 mm (2.3 in)
1973	30.2 mm (1.2 in)
1974	51.1 mm (2.0 in)
1975	25.1 mm (1.0 in)
1976	30.5 mm (1.2 in)
1977	33.8 mm (1.3 in)
1978	18.5 mm (0.7 in)
1979	46.2 mm (1.8 in)
1980	38.6 mm (1.5 in)
1981	50.3 mm (2.0 in)
1982	33.5 mm (1.3 in)
1983	34.0 mm (1.3 in)
1984	39.4 mm (1.6 in)
1985	22.9 mm (0.9 in)
1986	40.4 mm (1.6 in)
1987	45.2 mm (1.8 in)
1988	52.1 mm (2.1 in)
1989	35.1 mm (1.4 in)
1990	71.6 mm (2.8 in)
1991	33.0 mm (1.3 in)
1992	26.7 mm (1.1 in)
1993	25.1 mm (1.0 in)
1994	20.3 mm (0.8 in)
1995	53.6 mm (2.1 in)
1996	42.2 mm (1.7 in)
1997	43.9 mm (1.7 in)
1998	152.4 mm (6.0 in)
1999	41.9 mm (1.6 in)
2000	55.9 mm (2.2 in)
2001	22.9 mm (0.9 in)
2002	40.6 mm (1.6 in)
2003	29.7 mm (1.2 in)
2004	46.2 mm (1.8 in)
2005	56.1 mm (2.2 in)
2006	24.1 mm (0.9 in)
2007	139.7 mm (5.5 in)
2008	25.4 mm (1.0 in)
2009	19.1 mm (0.8 in)
2010	26.7 mm (1.1 in)
2011	20.3 mm (0.8 in)
2012	49.5 mm (1.9 in)
2013	29.2 mm (1.1 in)
2014	34.5 mm (1.4 in)
2015	34.3 mm (1.4 in)
2016	33.0 mm (1.3 in)
2017	31.8 mm (1.3 in)
2018	19.6 mm (0.8 in)
2019	29.2 mm (1.1 in)
2020	19.1 mm (0.8 in)
2021	10.2 mm (0.4 in)
2022	19.1 mm (0.8 in)
2023	25.4 mm (1.0 in)
2024	44.5 mm (1.8 in)
2025	19.8 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Keno, 1927 to 2025. The record is 227.4 mm (9.0 in) in 1964, marked on the chart; the median year is 67.3 mm (2.6 in).

Wettest five days (Rx5day) at Keno by year
Year	Wettest five days (Rx5day)
1927	55.6 mm (2.2 in)
1928	75.9 mm (3.0 in)
1929	132.1 mm (5.2 in)
1930	43.7 mm (1.7 in)
1931	57.7 mm (2.3 in)
1932	33.2 mm (1.3 in)
1933	61.6 mm (2.4 in)
1934	44.2 mm (1.7 in)
1935	38.2 mm (1.5 in)
1936	81.4 mm (3.2 in)
1937	81.6 mm (3.2 in)
1938	55.3 mm (2.2 in)
1939	104.4 mm (4.1 in)
1940	67.3 mm (2.6 in)
1941	62.1 mm (2.4 in)
1942	80.1 mm (3.2 in)
1943	129.0 mm (5.1 in)
1944	43.4 mm (1.7 in)
1945	48.4 mm (1.9 in)
1946	68.3 mm (2.7 in)
1947	35.0 mm (1.4 in)
1948	69.6 mm (2.7 in)
1949	46.0 mm (1.8 in)
1950	116.9 mm (4.6 in)
1951	67.9 mm (2.7 in)
1952	77.7 mm (3.1 in)
1953	75.6 mm (3.0 in)
1954	50.3 mm (2.0 in)
1955	105.4 mm (4.1 in)
1956	73.0 mm (2.9 in)
1957	91.4 mm (3.6 in)
1958	56.4 mm (2.2 in)
1959	44.7 mm (1.8 in)
1960	78.0 mm (3.1 in)
1961	61.1 mm (2.4 in)
1962	149.8 mm (5.9 in)
1963	88.4 mm (3.5 in)
1964	227.4 mm (9.0 in)
1965	47.3 mm (1.9 in)
1966	75.0 mm (3.0 in)
1967	48.7 mm (1.9 in)
1968	36.6 mm (1.4 in)
1969	102.4 mm (4.0 in)
1970	93.0 mm (3.7 in)
1971	50.3 mm (2.0 in)
1972	105.6 mm (4.2 in)
1973	72.2 mm (2.8 in)
1974	94.1 mm (3.7 in)
1975	58.7 mm (2.3 in)
1976	51.6 mm (2.0 in)
1977	73.5 mm (2.9 in)
1978	43.7 mm (1.7 in)
1979	67.3 mm (2.6 in)
1980	88.9 mm (3.5 in)
1981	99.8 mm (3.9 in)
1982	52.0 mm (2.0 in)
1983	64.3 mm (2.5 in)
1984	48.0 mm (1.9 in)
1985	36.6 mm (1.4 in)
1986	110.0 mm (4.3 in)
1987	55.9 mm (2.2 in)
1988	79.3 mm (3.1 in)
1989	40.7 mm (1.6 in)
1990	85.8 mm (3.4 in)
1991	57.4 mm (2.3 in)
1992	64.6 mm (2.5 in)
1993	61.0 mm (2.4 in)
1994	48.5 mm (1.9 in)
1995	119.7 mm (4.7 in)
1996	87.1 mm (3.4 in)
1997	134.8 mm (5.3 in)
1998	180.1 mm (7.1 in)
1999	71.8 mm (2.8 in)
2000	84.8 mm (3.3 in)
2001	63.0 mm (2.5 in)
2002	72.7 mm (2.9 in)
2003	67.6 mm (2.7 in)
2004	89.8 mm (3.5 in)
2005	100.1 mm (3.9 in)
2006	105.9 mm (4.2 in)
2007	166.1 mm (6.5 in)
2008	46.3 mm (1.8 in)
2009	36.7 mm (1.4 in)
2010	62.0 mm (2.4 in)
2011	43.2 mm (1.7 in)
2012	98.5 mm (3.9 in)
2013	31.0 mm (1.2 in)
2014	56.4 mm (2.2 in)
2015	75.8 mm (3.0 in)
2016	74.1 mm (2.9 in)
2017	50.3 mm (2.0 in)
2018	32.4 mm (1.3 in)
2019	54.8 mm (2.2 in)
2020	56.9 mm (2.2 in)
2021	26.6 mm (1.0 in)
2022	43.9 mm (1.7 in)
2023	25.4 mm (1.0 in)
2024	120.7 mm (4.8 in)
2025	73.3 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Keno, 1927 to 2025. The record is 113 days in 1970, marked on the chart; the median year is 49 days.

Longest dry spell (CDD) at Keno by year
Year	Longest dry spell (CDD)
1927	26 days
1928	70 days
1929	110 days
1930	79 days
1931	70 days
1932	79 days
1933	71 days
1934	64 days
1935	50 days
1936	82 days
1937	39 days
1938	50 days
1939	41 days
1940	59 days
1941	39 days
1942	74 days
1943	37 days
1944	58 days
1945	31 days
1946	35 days
1947	31 days
1948	26 days
1949	40 days
1950	44 days
1951	50 days
1952	32 days
1953	50 days
1954	49 days
1955	66 days
1956	29 days
1957	26 days
1958	24 days
1959	54 days
1960	63 days
1961	54 days
1962	64 days
1963	41 days
1964	89 days
1965	54 days
1966	42 days
1967	50 days
1968	25 days
1969	54 days
1970	113 days
1971	40 days
1972	49 days
1973	34 days
1974	82 days
1975	38 days
1976	38 days
1977	38 days
1978	58 days
1979	39 days
1980	76 days
1981	83 days
1982	52 days
1983	42 days
1984	43 days
1985	57 days
1986	73 days
1987	68 days
1988	94 days
1989	39 days
1990	31 days
1991	64 days
1992	40 days
1993	44 days
1994	49 days
1995	81 days
1996	31 days
1997	28 days
1998	39 days
1999	62 days
2000	49 days
2001	50 days
2002	52 days
2003	38 days
2004	33 days
2005	40 days
2006	37 days
2007	31 days
2008	55 days
2009	67 days
2010	32 days
2011	55 days
2012	57 days
2013	44 days
2014	49 days
2015	42 days
2016	74 days
2017	28 days
2018	75 days
2019	72 days
2020	65 days
2021	45 days
2022	45 days
2023	40 days
2024	101 days
2025	19 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

88 years, 1928 to 2024

A day with at least 33.9 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 120.5 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Keno: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	33.9 mm (1.3 in)
5 years	49.8 mm (2.0 in)
10 years	62.8 mm (2.5 in)
25 years	82.5 mm (3.2 in)
50 years	100.1 mm (3.9 in)
100 years	120.5 mm (4.7 in)	Longer than the 88 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, 88 years of values from 1928 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: 152.4 mm (6.0 in) in 1998; 139.7 mm (5.5 in) in 2007; 94.7 mm (3.7 in) in 1964.

Download the Data

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