Ellis Weather Records (USC00142452)

Record envelope, standing records and threshold days for Ellis (USC00142452), Kansas, United States, with 133 years of record.

Key Facts for Ellis

Ellis (USC00142452) is a weather station in Kansas, United States at 38.94 latitude and -99.57 longitude, 648 m (2,125 ft) above sea level.
The station reports from 1894 to 2026, 133 years of record.
1,464 records set at Ellis still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ellis set a daily record precipitation of 79.2 mm (3.1 in) on 21 June 2026.

About the Station

Location: Kansas, United States, 38.94 latitude, -99.57 longitude.
Elevation: 648 m (2,125 ft).
Period of record: 1894 to 2026, 133 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 Ellis. 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 Ellis, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.1 C (79.0 F)	-27.8 C (-18.0 F)	n/a	n/a
Feb	26.1 C (79.0 F)	-27.2 C (-17.0 F)	n/a	n/a
Mar	33.9 C (93.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Apr	35.6 C (96.1 F)	-8.9 C (16.0 F)	n/a	n/a
May	40.0 C (104.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jun	42.2 C (108.0 F)	4.4 C (39.9 F)	n/a	n/a
Jul	44.4 C (111.9 F)	8.3 C (46.9 F)	n/a	n/a
Aug	43.3 C (109.9 F)	7.2 C (45.0 F)	n/a	n/a
Sep	43.3 C (109.9 F)	-1.1 C (30.0 F)	n/a	n/a
Oct	37.2 C (99.0 F)	-8.3 C (17.1 F)	n/a	n/a
Nov	31.1 C (88.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Dec	26.7 C (80.1 F)	-23.3 C (-9.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ellis still stand. 1938 holds the most, with 138.

Standing records at Ellis by the year they were set
Year set	Standing records
1937	116
1938	138
1939	128
1940	102
1941	62
1942	91
1943	113
1944	62
1945	102
1946	98
1947	84
1948	45
1949	72
1950	88
1951	82
1952	42
1966	6
1970	3
1978	4
1980	10
1981	16

All-Time Record Progression

2 new records

2 all-time records were set at Ellis between 13 January 1979 and 17 April 2016. Each dot is a new record.

When Ellis set new all-time records
Date	Kind	Detail
1979-01-13	Record daily snowfall	Record daily snowfall 33.0 cm (13.0 in)
2016-04-17	Record daily precipitation	Record daily precipitation 167.6 mm (6.6 in)

Wettest Day of Each Month

Apr: 167.6 mm (6.6 in)

The wettest day on record for each calendar month at Ellis. The most was 167.6 mm (6.6 in) on 17 April 2016.

Record daily precipitation for each month at Ellis
Month	Record daily precipitation (mm)	Date
Jan	31.8 mm (1.3 in)	16 January 2017
Feb	47.8 mm (1.9 in)	19 February 1971
Mar	77.5 mm (3.1 in)	14 March 2021
Apr	167.6 mm (6.6 in)	17 April 2016
May	96.5 mm (3.8 in)	23 May 1995
Jun	128.3 mm (5.1 in)	28 June 1965
Jul	103.1 mm (4.1 in)	6 July 1968
Aug	100.6 mm (4.0 in)	13 August 1987
Sep	96.0 mm (3.8 in)	25 September 2017
Oct	91.4 mm (3.6 in)	23 October 2000
Nov	60.2 mm (2.4 in)	16 November 1961
Dec	55.9 mm (2.2 in)	30 December 2006

Period of Record Coverage

1937 to 1981

21 years of record at Ellis, 1937 to 1981. 8 years have data for under 90 percent of days and are left out of rankings: 1948, 1949, 1952, 1966, 1970, 1978, 1980, 1981.

Days with data per year at Ellis
Year	Days with data	Share of year	Complete
1937	332	91%	Yes
1938	352	96%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	365	100%	Yes
1943	364	100%	Yes
1944	361	99%	Yes
1945	365	100%	Yes
1946	363	99%	Yes
1947	365	100%	Yes
1948	152	42%	No
1949	180	49%	No
1950	353	97%	Yes
1951	350	96%	Yes
1952	177	48%	No
1966	22	6%	No
1970	26	7%	No
1978	30	8%	No
1980	58	16%	No
1981	152	42%	No

Latest Records

Latest records at Ellis
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 June 2026	Ellis, US	daily rain	79.2 mm (3.1 in)	39.6 mm (1.6 in)	75 years	59 of 100 (Notable)
4 June 2026	Ellis, US	daily rain	54.6 mm (2.1 in)	30.0 mm (1.2 in)	52 years	46 of 100 (Notable)
21 November 2025	Ellis, US	daily rain	32.0 mm (1.3 in)	1.0 mm (0.04 in)	31 years	20 of 100 (Routine)
28 October 2025	Ellis, US	daily rain	10.2 mm (0.4 in)	2.1 mm (0.08 in)	51 years	20 of 100 (Routine)
20 September 2025	Ellis, US	daily rain	40.6 mm (1.6 in)	6.1 mm (0.24 in)	60 years	32 of 100 (Routine)
25 May 2025	Ellis, US	daily rain	28.2 mm (1.1 in)	0.3 mm (0.01 in)	34 years	20 of 100 (Routine)
24 April 2025	Ellis, US	daily rain	62.7 mm (2.5 in)	33.5 mm (1.3 in)	22 years	43 of 100 (Notable)
19 March 2025	Ellis, US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	7 years	13 of 100 (Routine)
6 January 2025	Ellis, US	daily rain	8.9 mm (0.35 in)	2.8 mm (0.11 in)	48 years	20 of 100 (Routine)
6 January 2025	Ellis, US	daily snowfall	10.2 cm (4.0 in)	3.8 cm (1.5 in)	37 years	25 of 100 (Routine)
19 November 2024	Ellis, US	daily rain	29.5 mm (1.2 in)	9.2 mm (0.36 in)	14 years	24 of 100 (Routine)
9 November 2024	Ellis, US	daily rain	45.7 mm (1.8 in)	31.0 mm (1.2 in)	16 years	48 of 100 (Notable)
8 November 2024	Ellis, US	daily rain (Tie)	8.9 mm (0.35 in)	tie	37 years	5 of 100 (Routine)
5 November 2024	Ellis, US	daily rain (Tie)	17.8 mm (0.7 in)	tie	11 years	3 of 100 (Routine)
30 August 2024	Ellis, US	daily rain	37.1 mm (1.5 in)	18.0 mm (0.7 in)	21 years	28 of 100 (Routine)
19 June 2024	Ellis, US	daily rain	51.6 mm (2.0 in)	31.8 mm (1.3 in)	31 years	41 of 100 (Notable)
26 March 2024	Ellis, US	daily snowfall	8.9 cm (3.5 in)	3.8 cm (1.5 in)	76 years	35 of 100 (Notable)
3 February 2024	Ellis, US	daily rain	6.4 mm (0.25 in)	0.8 mm (0.03 in)	36 years	20 of 100 (Routine)
2 February 2024	Ellis, US	daily rain	36.3 mm (1.4 in)	27.9 mm (1.1 in)	40 years	62 of 100 (Major)
16 January 2024	Ellis, US	daily snow depth	20.3 cm (8.0 in)	10.1 cm (4.0 in)	64 years	43 of 100 (Notable)

Climate Trend

11 complete years, 1939 to 1951

One stripe for each of 11 complete years at Ellis, 1939 to 1951. Blue stripes are years cooler than the station's own mean of 12.0 C (53.6 F); red stripes are warmer. The coolest year was 1951, at 10.4 C (50.7 F), and the warmest was 1939, at 13.9 C (57.1 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Ellis as warming stripes, 1939 to 1951
Year	Annual mean temperature	Difference from the station mean
1939	13.9 C	+1.92 C
1940	11.8 C	-0.24 C
1941	12.3 C	+0.25 C
1942	11.5 C	-0.51 C
1943	12.1 C	+0.05 C
1944	11.9 C	-0.10 C
1945	11.9 C	-0.12 C
1946	13.3 C	+1.31 C
1947	11.9 C	-0.15 C
1950	11.3 C	-0.75 C
1951	10.4 C	-1.62 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

1894 to 2026

Yearly extremes at Ellis: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	1940	40.6 C (105.1 F)	21
Coldest night (TNn)	-28.9 C (-20.0 F)	1948	-21.1 C (-6.0 F)	21
Wettest day (Rx1day)	167.6 mm (6.6 in)	2016	55.9 mm (2.2 in)	91
Wettest five days (Rx5day)	215.9 mm (8.5 in)	2016	82.0 mm (3.2 in)	91
Longest dry spell (CDD)	76 days	1972	40 days	91

Hottest day (TXx)

The hottest day of the year at Ellis, 1894 to 2026. The record is 44.4 C (111.9 F) in 1940, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Ellis by year
Year	Hottest day (TXx)
1894	n/a
1937	43.3 C (109.9 F)
1938	41.7 C (107.1 F)
1939	42.2 C (108.0 F)
1940	44.4 C (111.9 F)
1941	38.9 C (102.0 F)
1942	40.6 C (105.1 F)
1943	43.3 C (109.9 F)
1944	40.0 C (104.0 F)
1945	41.1 C (106.0 F)
1946	42.8 C (109.0 F)
1947	43.3 C (109.9 F)
1948	35.0 C (95.0 F)
1949	39.4 C (102.9 F)
1950	40.6 C (105.1 F)
1951	39.4 C (102.9 F)
1952	42.2 C (108.0 F)
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	20.0 C (68.0 F)
1967	n/a
1968	n/a
1969	n/a
1970	20.0 C (68.0 F)
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	30.0 C (86.0 F)
1979	n/a
1980	22.8 C (73.0 F)
1981	37.8 C (100.0 F)
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 Ellis, 1894 to 2026. The record is -28.9 C (-20.0 F) in 1948, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at Ellis by year
Year	Coldest night (TNn)
1894	n/a
1937	-18.3 C (-0.9 F)
1938	-20.0 C (-4.0 F)
1939	-22.2 C (-8.0 F)
1940	-25.0 C (-13.0 F)
1941	-16.1 C (3.0 F)
1942	-26.1 C (-15.0 F)
1943	-27.8 C (-18.0 F)
1944	-21.1 C (-6.0 F)
1945	-21.1 C (-6.0 F)
1946	-20.6 C (-5.1 F)
1947	-27.8 C (-18.0 F)
1948	-28.9 C (-20.0 F)
1949	-16.1 C (3.0 F)
1950	-24.4 C (-11.9 F)
1951	-27.2 C (-17.0 F)
1952	-18.9 C (-2.0 F)
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	-22.2 C (-8.0 F)
1967	n/a
1968	n/a
1969	n/a
1970	-17.8 C (0.0 F)
1971	n/a
1972	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	-4.4 C (24.1 F)
1979	n/a
1980	-19.4 C (-2.9 F)
1981	-17.8 C (0.0 F)
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 Ellis, 1894 to 2026. The record is 167.6 mm (6.6 in) in 2016, marked on the chart; the median year is 55.9 mm (2.2 in).

Wettest day (Rx1day) at Ellis by year
Year	Wettest day (Rx1day)
1894	5.1 mm (0.20 in)
1937	40.6 mm (1.6 in)
1938	53.6 mm (2.1 in)
1939	59.7 mm (2.4 in)
1940	57.4 mm (2.3 in)
1941	61.0 mm (2.4 in)
1942	52.3 mm (2.1 in)
1943	27.9 mm (1.1 in)
1944	38.9 mm (1.5 in)
1945	36.8 mm (1.4 in)
1946	35.1 mm (1.4 in)
1947	72.4 mm (2.9 in)
1948	25.1 mm (1.0 in)
1949	30.7 mm (1.2 in)
1950	68.8 mm (2.7 in)
1951	70.4 mm (2.8 in)
1952	21.8 mm (0.9 in)
1953	43.9 mm (1.7 in)
1954	43.7 mm (1.7 in)
1955	45.7 mm (1.8 in)
1956	43.2 mm (1.7 in)
1957	42.2 mm (1.7 in)
1958	58.2 mm (2.3 in)
1959	52.1 mm (2.1 in)
1960	50.0 mm (2.0 in)
1961	60.2 mm (2.4 in)
1962	56.1 mm (2.2 in)
1963	85.6 mm (3.4 in)
1964	37.3 mm (1.5 in)
1965	128.3 mm (5.1 in)
1966	55.9 mm (2.2 in)
1967	52.1 mm (2.1 in)
1968	103.1 mm (4.1 in)
1969	46.7 mm (1.8 in)
1970	71.9 mm (2.8 in)
1971	71.9 mm (2.8 in)
1972	54.6 mm (2.1 in)
1973	88.4 mm (3.5 in)
1974	59.7 mm (2.4 in)
1975	55.9 mm (2.2 in)
1976	34.0 mm (1.3 in)
1977	49.0 mm (1.9 in)
1978	43.7 mm (1.7 in)
1979	67.1 mm (2.6 in)
1980	80.0 mm (3.1 in)
1981	37.8 mm (1.5 in)
1982	45.7 mm (1.8 in)
1983	30.5 mm (1.2 in)
1984	51.8 mm (2.0 in)
1985	80.5 mm (3.2 in)
1986	31.2 mm (1.2 in)
1987	100.6 mm (4.0 in)
1988	54.4 mm (2.1 in)
1989	85.3 mm (3.4 in)
1990	49.0 mm (1.9 in)
1991	31.0 mm (1.2 in)
1992	62.7 mm (2.5 in)
1993	87.4 mm (3.4 in)
1994	31.0 mm (1.2 in)
1995	96.5 mm (3.8 in)
1996	58.2 mm (2.3 in)
1997	49.5 mm (1.9 in)
1998	61.7 mm (2.4 in)
1999	75.4 mm (3.0 in)
2000	91.4 mm (3.6 in)
2001	69.9 mm (2.8 in)
2002	27.9 mm (1.1 in)
2003	57.2 mm (2.3 in)
2004	47.0 mm (1.9 in)
2005	43.7 mm (1.7 in)
2006	67.3 mm (2.6 in)
2007	75.7 mm (3.0 in)
2008	49.3 mm (1.9 in)
2009	34.3 mm (1.4 in)
2010	86.4 mm (3.4 in)
2011	49.5 mm (1.9 in)
2012	41.9 mm (1.6 in)
2013	55.9 mm (2.2 in)
2014	114.8 mm (4.5 in)
2015	55.9 mm (2.2 in)
2016	167.6 mm (6.6 in)
2017	96.0 mm (3.8 in)
2018	66.0 mm (2.6 in)
2019	65.5 mm (2.6 in)
2020	66.0 mm (2.6 in)
2021	77.5 mm (3.1 in)
2022	33.0 mm (1.3 in)
2023	38.1 mm (1.5 in)
2024	51.6 mm (2.0 in)
2025	62.7 mm (2.5 in)
2026	79.2 mm (3.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ellis, 1894 to 2026. The record is 215.9 mm (8.5 in) in 2016, marked on the chart; the median year is 82.0 mm (3.2 in).

Wettest five days (Rx5day) at Ellis by year
Year	Wettest five days (Rx5day)
1894	5.1 mm (0.20 in)
1937	44.4 mm (1.7 in)
1938	64.5 mm (2.5 in)
1939	61.3 mm (2.4 in)
1940	97.8 mm (3.9 in)
1941	112.0 mm (4.4 in)
1942	89.4 mm (3.5 in)
1943	39.7 mm (1.6 in)
1944	64.3 mm (2.5 in)
1945	70.3 mm (2.8 in)
1946	82.1 mm (3.2 in)
1947	95.0 mm (3.7 in)
1948	46.2 mm (1.8 in)
1949	42.2 mm (1.7 in)
1950	86.1 mm (3.4 in)
1951	95.3 mm (3.8 in)
1952	63.3 mm (2.5 in)
1953	99.7 mm (3.9 in)
1954	80.5 mm (3.2 in)
1955	70.1 mm (2.8 in)
1956	59.5 mm (2.3 in)
1957	77.8 mm (3.1 in)
1958	97.1 mm (3.8 in)
1959	61.0 mm (2.4 in)
1960	63.2 mm (2.5 in)
1961	75.7 mm (3.0 in)
1962	85.5 mm (3.4 in)
1963	104.6 mm (4.1 in)
1964	57.6 mm (2.3 in)
1965	183.6 mm (7.2 in)
1966	61.0 mm (2.4 in)
1967	61.2 mm (2.4 in)
1968	105.1 mm (4.1 in)
1969	73.5 mm (2.9 in)
1970	133.2 mm (5.2 in)
1971	107.0 mm (4.2 in)
1972	60.0 mm (2.4 in)
1973	120.9 mm (4.8 in)
1974	78.5 mm (3.1 in)
1975	82.0 mm (3.2 in)
1976	46.0 mm (1.8 in)
1977	100.5 mm (4.0 in)
1978	75.9 mm (3.0 in)
1979	112.0 mm (4.4 in)
1980	131.1 mm (5.2 in)
1981	62.7 mm (2.5 in)
1982	52.1 mm (2.1 in)
1983	39.9 mm (1.6 in)
1984	62.5 mm (2.5 in)
1985	99.8 mm (3.9 in)
1986	39.7 mm (1.6 in)
1987	102.1 mm (4.0 in)
1988	58.7 mm (2.3 in)
1989	85.3 mm (3.4 in)
1990	96.3 mm (3.8 in)
1991	67.5 mm (2.7 in)
1992	66.8 mm (2.6 in)
1993	167.2 mm (6.6 in)
1994	51.0 mm (2.0 in)
1995	120.9 mm (4.8 in)
1996	118.1 mm (4.6 in)
1997	81.2 mm (3.2 in)
1998	91.5 mm (3.6 in)
1999	128.0 mm (5.0 in)
2000	143.5 mm (5.6 in)
2001	105.7 mm (4.2 in)
2002	44.7 mm (1.8 in)
2003	61.0 mm (2.4 in)
2004	92.4 mm (3.6 in)
2005	54.6 mm (2.1 in)
2006	92.7 mm (3.6 in)
2007	92.7 mm (3.6 in)
2008	92.8 mm (3.7 in)
2009	44.5 mm (1.8 in)
2010	86.4 mm (3.4 in)
2011	130.8 mm (5.1 in)
2012	59.7 mm (2.4 in)
2013	105.2 mm (4.1 in)
2014	154.4 mm (6.1 in)
2015	86.4 mm (3.4 in)
2016	215.9 mm (8.5 in)
2017	139.9 mm (5.5 in)
2018	130.9 mm (5.2 in)
2019	104.0 mm (4.1 in)
2020	66.0 mm (2.6 in)
2021	86.6 mm (3.4 in)
2022	50.7 mm (2.0 in)
2023	52.1 mm (2.1 in)
2024	72.4 mm (2.9 in)
2025	80.0 mm (3.1 in)
2026	88.6 mm (3.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ellis, 1894 to 2026. The record is 76 days in 1972, marked on the chart; the median year is 40 days.

Longest dry spell (CDD) at Ellis by year
Year	Longest dry spell (CDD)
1894	22 days
1937	32 days
1938	54 days
1939	43 days
1940	22 days
1941	17 days
1942	40 days
1943	30 days
1944	30 days
1945	49 days
1946	52 days
1947	32 days
1948	28 days
1949	40 days
1950	58 days
1951	27 days
1952	63 days
1953	47 days
1954	39 days
1955	31 days
1956	39 days
1957	42 days
1958	40 days
1959	27 days
1960	24 days
1961	64 days
1962	40 days
1963	35 days
1964	34 days
1965	52 days
1966	64 days
1967	52 days
1968	51 days
1969	44 days
1970	74 days
1971	32 days
1972	76 days
1973	30 days
1974	66 days
1975	44 days
1976	65 days
1977	24 days
1978	34 days
1979	38 days
1980	39 days
1981	32 days
1982	55 days
1983	53 days
1984	33 days
1985	45 days
1986	33 days
1987	35 days
1988	41 days
1989	48 days
1990	28 days
1991	48 days
1992	43 days
1993	27 days
1994	26 days
1995	46 days
1996	44 days
1997	37 days
1998	40 days
1999	45 days
2000	28 days
2001	22 days
2002	56 days
2003	41 days
2004	32 days
2005	35 days
2006	57 days
2007	40 days
2008	43 days
2009	54 days
2010	64 days
2011	38 days
2012	62 days
2013	55 days
2014	45 days
2015	33 days
2016	51 days
2017	43 days
2018	35 days
2019	29 days
2020	45 days
2021	58 days
2022	49 days
2023	24 days
2024	38 days
2025	37 days
2026	39 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

85 years, 1937 to 2025

A day with at least 55.6 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 139.2 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Ellis: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	55.6 mm (2.2 in)
5 years	76.1 mm (3.0 in)
10 years	90.5 mm (3.6 in)
25 years	109.4 mm (4.3 in)
50 years	124.1 mm (4.9 in)
100 years	139.2 mm (5.5 in)	Longer than the 85 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, 85 years of values from 1937 to 2025.

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: 167.6 mm (6.6 in) in 2016; 128.3 mm (5.1 in) in 1965; 114.8 mm (4.5 in) in 2014.

Download the Data

Data for Ellis standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ellis 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 2026-10-12 (12 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).