Chaplyne Weather Records (UPM00034509)

Record envelope, standing records and threshold days for Chaplyne (UPM00034509), Ukraine, with 86 years of record.

Key Facts for Chaplyne

Chaplyne (UPM00034509) is a weather station in Ukraine at 48.13 latitude and 36.23 longitude, 175 m (574 ft) above sea level.
The station reports from 1936 to 2021, 86 years of record.
1,464 records set at Chaplyne still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Chaplyne set a daily record precipitation of 18.0 mm (0.7 in) on 27 April 2016.

About the Station

Location: Ukraine, 48.13 latitude, 36.23 longitude.
Elevation: 175 m (574 ft).
Period of record: 1936 to 2021, 86 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 Chaplyne. 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 Chaplyne, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	20.2 C (68.4 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	17.4 C (63.3 F)	-27.0 C (-16.6 F)	n/a	n/a
Mar	22.0 C (71.6 F)	-29.1 C (-20.4 F)	n/a	n/a
Apr	29.0 C (84.2 F)	-8.3 C (17.1 F)	n/a	n/a
May	33.8 C (92.8 F)	-1.1 C (30.0 F)	n/a	n/a
Jun	35.0 C (95.0 F)	3.0 C (37.4 F)	n/a	n/a
Jul	38.4 C (101.1 F)	7.6 C (45.7 F)	n/a	n/a
Aug	37.7 C (99.9 F)	1.0 C (33.8 F)	n/a	n/a
Sep	35.5 C (95.9 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	30.0 C (86.0 F)	-11.1 C (12.0 F)	n/a	n/a
Nov	17.9 C (64.2 F)	-21.1 C (-6.0 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chaplyne still stand. 2001 holds the most, with 70.

Standing records at Chaplyne by the year they were set
Year set	Standing records
1949	11
1950	40
1951	21
1952	65
1953	35
1954	3
1956	10
1957	1
1969	18
1970	10
1971	1
1973	22
1974	21
1975	40
1976	46
1977	28
1978	36
1979	27
1980	26
1981	37
1984	16
1985	63
1986	26
1987	35
1988	18
1989	16
1990	22
1991	49
1992	35
1993	50
1994	47
1995	10
1996	5
1997	2
2000	37
2001	70
2002	58
2003	58
2004	45
2005	29
2006	47
2007	48
2008	17
2009	12
2012	21
2014	25
2015	70
2016	35

All-Time Record Progression

1 new records

1 all-time records were set at Chaplyne between 29 March 1993 and 29 March 1993. Each dot is a new record.

Wettest Day of Each Month

Mar: 80.0 mm (3.1 in)

The wettest day on record for each calendar month at Chaplyne. The most was 80.0 mm (3.1 in) on 29 March 1993.

Record daily precipitation for each month at Chaplyne
Month	Record daily precipitation (mm)	Date
Jan	44.0 mm (1.7 in)	15 January 2004
Feb	30.0 mm (1.2 in)	22 February 2000
Mar	80.0 mm (3.1 in)	29 March 1993
Apr	50.0 mm (2.0 in)	3 April 1976
May	46.9 mm (1.8 in)	16 May 1973
Jun	63.6 mm (2.5 in)	28 June 1939
Jul	73.0 mm (2.9 in)	16 July 1956
Aug	79.8 mm (3.1 in)	23 August 1960
Sep	61.1 mm (2.4 in)	1 September 1985
Oct	38.9 mm (1.5 in)	20 October 1955
Nov	38.1 mm (1.5 in)	5 November 1990
Dec	77.0 mm (3.0 in)	29 December 1993

Period of Record Coverage

1949 to 2016

55 years of record at Chaplyne, 1949 to 2016. 52 years have data for under 90 percent of days and are left out of rankings: 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956 and others.

Days with data per year at Chaplyne
Year	Days with data	Share of year	Complete
1949	60	16%	No
1950	142	39%	No
1951	165	45%	No
1952	208	57%	No
1953	203	56%	No
1954	27	7%	No
1955	3	1%	No
1956	39	11%	No
1957	22	6%	No
1959	9	2%	No
1960	1	0%	No
1969	105	29%	No
1970	89	24%	No
1971	17	5%	No
1973	150	41%	No
1974	198	54%	No
1975	195	53%	No
1976	212	58%	No
1977	152	42%	No
1978	203	56%	No
1979	146	40%	No
1980	155	42%	No
1981	210	58%	No
1982	6	2%	No
1983	3	1%	No
1984	166	45%	No
1985	199	55%	No
1986	189	52%	No
1987	149	41%	No
1988	138	38%	No
1989	132	36%	No
1990	146	40%	No
1991	270	74%	No
1992	256	70%	No
1993	272	75%	No
1994	130	36%	No
1995	73	20%	No
1996	10	3%	No
1997	22	6%	No
1998	11	3%	No
2000	307	84%	No
2001	334	92%	Yes
2002	178	49%	No
2003	347	95%	Yes
2004	195	53%	No
2005	161	44%	No
2006	198	54%	No
2007	125	34%	No
2008	87	24%	No
2009	44	12%	No
2012	107	29%	No
2013	6	2%	No
2014	163	45%	No
2015	330	90%	Yes
2016	144	39%	No

Latest Records

Latest records at Chaplyne
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 April 2016	Chaplyne, UA	daily rain	18.0 mm (0.7 in)	0.2 mm (0.01 in)	70 years	20 of 100 (Routine)
17 January 2016	Chaplyne, UA	daily rain	17.0 mm (0.7 in)	3.9 mm (0.15 in)	45 years	20 of 100 (Routine)
2 December 2015	Chaplyne, UA	daily rain	13.0 mm (0.5 in)	1.8 mm (0.07 in)	36 years	20 of 100 (Routine)
7 April 2015	Chaplyne, UA	daily rain	26.9 mm (1.1 in)	15.1 mm (0.6 in)	56 years	52 of 100 (Notable)
13 March 2015	Chaplyne, UA	daily rain	19.1 mm (0.8 in)	12.1 mm (0.5 in)	12 years	20 of 100 (Routine)
4 March 2015	Chaplyne, UA	daily rain	16.0 mm (0.6 in)	9.9 mm (0.39 in)	28 years	20 of 100 (Routine)
1 February 2015	Chaplyne, UA	daily rain	29.0 mm (1.1 in)	7.0 mm (0.28 in)	12 years	30 of 100 (Routine)
18 November 2014	Chaplyne, UA	daily rain	16.0 mm (0.6 in)	1.4 mm (0.06 in)	64 years	20 of 100 (Routine)
24 September 2014	Chaplyne, UA	daily rain	51.1 mm (2.0 in)	38.4 mm (1.5 in)	36 years	57 of 100 (Notable)
28 August 2014	Chaplyne, UA	daily rain	27.9 mm (1.1 in)	17.9 mm (0.7 in)	13 years	28 of 100 (Routine)
18 August 2014	Chaplyne, UA	daily rain	23.1 mm (0.9 in)	4.4 mm (0.17 in)	73 years	20 of 100 (Routine)
3 December 2012	Chaplyne, UA	daily rain	15.0 mm (0.6 in)	4.4 mm (0.17 in)	35 years	20 of 100 (Routine)
29 October 2012	Chaplyne, UA	daily rain	6.1 mm (0.24 in)	1.8 mm (0.07 in)	67 years	20 of 100 (Routine)
6 May 2009	Chaplyne, UA	daily rain	19.0 mm (0.7 in)	8.4 mm (0.33 in)	58 years	20 of 100 (Routine)
25 December 2008	Chaplyne, UA	daily rain	19.0 mm (0.7 in)	10.3 mm (0.4 in)	66 years	20 of 100 (Routine)
28 July 2008	Chaplyne, UA	daily rain	19.0 mm (0.7 in)	6.7 mm (0.26 in)	61 years	20 of 100 (Routine)
27 November 2007	Chaplyne, UA	daily rain	26.0 mm (1.0 in)	11.0 mm (0.4 in)	54 years	46 of 100 (Notable)
22 January 2007	Chaplyne, UA	daily rain	11.0 mm (0.4 in)	3.0 mm (0.12 in)	40 years	20 of 100 (Routine)
4 November 2006	Chaplyne, UA	daily rain	17.0 mm (0.7 in)	2.5 mm (0.10 in)	68 years	20 of 100 (Routine)
30 August 2006	Chaplyne, UA	daily rain	22.0 mm (0.9 in)	1.5 mm (0.06 in)	40 years	20 of 100 (Routine)

Extremes by Year

1936 to 2021

Yearly extremes at Chaplyne: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.4 C (101.1 F)	2001	32.4 C (90.3 F)	55
Coldest night (TNn)	-30.0 C (-22.0 F)	1950	-20.0 C (-4.1 F)	58
Wettest day (Rx1day)	80.0 mm (3.1 in)	1993	32.6 mm (1.3 in)	77
Wettest five days (Rx5day)	100.8 mm (4.0 in)	1960	54.0 mm (2.1 in)	70
Longest dry spell (CDD)	48 days	1965	21 days	75

Hottest day (TXx)

The hottest day of the year at Chaplyne, 1936 to 2021. The record is 38.4 C (101.1 F) in 2001, marked on the chart; the median year is 32.4 C (90.3 F).

Hottest day (TXx) at Chaplyne by year
Year	Hottest day (TXx)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	27.2 C (81.0 F)
1950	32.2 C (90.0 F)
1951	36.1 C (97.0 F)
1952	36.1 C (97.0 F)
1953	36.1 C (97.0 F)
1954	31.1 C (88.0 F)
1955	21.1 C (70.0 F)
1956	32.2 C (90.0 F)
1957	23.9 C (75.0 F)
1958	n/a
1959	7.8 C (46.0 F)
1960	28.9 C (84.0 F)
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	33.9 C (93.0 F)
1970	35.0 C (95.0 F)
1971	31.1 C (88.0 F)
1972	n/a
1973	31.0 C (87.8 F)
1974	32.0 C (89.6 F)
1975	33.0 C (91.4 F)
1976	30.0 C (86.0 F)
1977	32.0 C (89.6 F)
1978	32.0 C (89.6 F)
1979	33.0 C (91.4 F)
1980	34.0 C (93.2 F)
1981	35.0 C (95.0 F)
1982	24.9 C (76.8 F)
1983	9.4 C (48.9 F)
1984	31.8 C (89.2 F)
1985	33.7 C (92.7 F)
1986	32.4 C (90.3 F)
1987	30.9 C (87.6 F)
1988	32.4 C (90.3 F)
1989	32.5 C (90.5 F)
1990	33.4 C (92.1 F)
1991	34.2 C (93.6 F)
1992	34.1 C (93.4 F)
1993	34.4 C (93.9 F)
1994	33.6 C (92.5 F)
1995	30.3 C (86.5 F)
1996	10.6 C (51.1 F)
1997	24.2 C (75.6 F)
1998	20.0 C (68.0 F)
2000	36.8 C (98.2 F)
2001	38.4 C (101.1 F)
2002	37.7 C (99.9 F)
2003	33.1 C (91.6 F)
2004	28.5 C (83.3 F)
2005	35.1 C (95.2 F)
2006	35.7 C (96.3 F)
2007	37.3 C (99.1 F)
2008	35.8 C (96.4 F)
2009	33.8 C (92.8 F)
2012	27.9 C (82.2 F)
2013	3.2 C (37.8 F)
2014	37.7 C (99.9 F)
2015	36.4 C (97.5 F)
2016	26.3 C (79.3 F)
2021	n/a

Coldest night (TNn)

The coldest night of the year at Chaplyne, 1936 to 2021. The record is -30.0 C (-22.0 F) in 1950, marked on the chart; the median year is -20.0 C (-4.1 F).

Coldest night (TNn) at Chaplyne by year
Year	Coldest night (TNn)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	-11.1 C (12.0 F)
1950	-30.0 C (-22.0 F)
1951	-21.1 C (-6.0 F)
1952	-17.2 C (1.0 F)
1953	-22.8 C (-9.0 F)
1954	-21.1 C (-6.0 F)
1955	-2.8 C (27.0 F)
1956	-17.2 C (1.0 F)
1957	-20.0 C (-4.0 F)
1958	n/a
1959	-10.0 C (14.0 F)
1960	2.8 C (37.0 F)
1961	11.1 C (52.0 F)
1962	-6.1 C (21.0 F)
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	-26.1 C (-15.0 F)
1970	-26.1 C (-15.0 F)
1971	-17.8 C (0.0 F)
1972	n/a
1973	-24.0 C (-11.2 F)
1974	-18.0 C (-0.4 F)
1975	-21.0 C (-5.8 F)
1976	-27.0 C (-16.6 F)
1977	-20.0 C (-4.0 F)
1978	-18.0 C (-0.4 F)
1979	-24.0 C (-11.2 F)
1980	-21.0 C (-5.8 F)
1981	-22.0 C (-7.6 F)
1982	-4.4 C (24.1 F)
1983	0.0 C (32.0 F)
1984	-18.1 C (-0.6 F)
1985	-25.9 C (-14.6 F)
1986	-17.7 C (0.1 F)
1987	-29.1 C (-20.4 F)
1988	-25.7 C (-14.3 F)
1989	-18.1 C (-0.6 F)
1990	-13.6 C (7.5 F)
1991	-22.4 C (-8.3 F)
1992	-20.3 C (-4.5 F)
1993	-21.2 C (-6.2 F)
1994	-21.8 C (-7.2 F)
1995	-17.7 C (0.1 F)
1996	-21.5 C (-6.7 F)
1997	-23.2 C (-9.8 F)
1998	-15.1 C (4.8 F)
2000	-22.3 C (-8.1 F)
2001	-20.1 C (-4.2 F)
2002	-19.8 C (-3.6 F)
2003	-20.9 C (-5.6 F)
2004	-20.0 C (-4.0 F)
2005	-20.3 C (-4.5 F)
2006	-28.7 C (-19.7 F)
2007	-18.6 C (-1.5 F)
2008	-18.8 C (-1.8 F)
2009	-28.2 C (-18.8 F)
2012	-19.8 C (-3.6 F)
2013	-5.6 C (21.9 F)
2014	-18.8 C (-1.8 F)
2015	-25.8 C (-14.4 F)
2016	-22.1 C (-7.8 F)
2021	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Chaplyne, 1936 to 2021. The record is 80.0 mm (3.1 in) in 1993, marked on the chart; the median year is 32.6 mm (1.3 in).

Wettest day (Rx1day) at Chaplyne by year
Year	Wettest day (Rx1day)
1936	62.2 mm (2.4 in)
1937	24.3 mm (1.0 in)
1938	42.2 mm (1.7 in)
1939	63.6 mm (2.5 in)
1940	49.1 mm (1.9 in)
1941	27.1 mm (1.1 in)
1942	75.7 mm (3.0 in)
1943	26.8 mm (1.1 in)
1944	60.8 mm (2.4 in)
1945	27.6 mm (1.1 in)
1946	28.0 mm (1.1 in)
1947	17.8 mm (0.7 in)
1948	32.6 mm (1.3 in)
1949	41.0 mm (1.6 in)
1950	46.1 mm (1.8 in)
1951	29.1 mm (1.1 in)
1952	21.9 mm (0.9 in)
1953	28.1 mm (1.1 in)
1954	29.5 mm (1.2 in)
1955	38.9 mm (1.5 in)
1956	73.0 mm (2.9 in)
1957	21.0 mm (0.8 in)
1958	27.9 mm (1.1 in)
1959	38.2 mm (1.5 in)
1960	79.8 mm (3.1 in)
1961	26.1 mm (1.0 in)
1962	56.2 mm (2.2 in)
1963	34.1 mm (1.3 in)
1964	45.2 mm (1.8 in)
1965	68.6 mm (2.7 in)
1966	71.6 mm (2.8 in)
1967	25.5 mm (1.0 in)
1968	31.8 mm (1.3 in)
1969	48.5 mm (1.9 in)
1970	23.2 mm (0.9 in)
1971	24.4 mm (1.0 in)
1972	35.7 mm (1.4 in)
1973	73.5 mm (2.9 in)
1974	29.7 mm (1.2 in)
1975	41.5 mm (1.6 in)
1976	50.0 mm (2.0 in)
1977	24.1 mm (0.9 in)
1978	39.1 mm (1.5 in)
1979	31.8 mm (1.3 in)
1980	51.5 mm (2.0 in)
1981	49.2 mm (1.9 in)
1982	27.2 mm (1.1 in)
1983	46.1 mm (1.8 in)
1984	15.3 mm (0.6 in)
1985	61.1 mm (2.4 in)
1986	27.1 mm (1.1 in)
1987	21.9 mm (0.9 in)
1988	43.1 mm (1.7 in)
1989	44.1 mm (1.7 in)
1990	38.1 mm (1.5 in)
1991	25.9 mm (1.0 in)
1992	32.0 mm (1.3 in)
1993	80.0 mm (3.1 in)
1994	37.1 mm (1.5 in)
1995	17.0 mm (0.7 in)
1996	3.0 mm (0.12 in)
1997	19.1 mm (0.8 in)
1998	n/a
2000	47.0 mm (1.9 in)
2001	35.0 mm (1.4 in)
2002	34.0 mm (1.3 in)
2003	57.0 mm (2.2 in)
2004	44.0 mm (1.7 in)
2005	17.0 mm (0.7 in)
2006	28.0 mm (1.1 in)
2007	26.0 mm (1.0 in)
2008	19.0 mm (0.7 in)
2009	19.0 mm (0.7 in)
2012	15.0 mm (0.6 in)
2013	14.0 mm (0.6 in)
2014	51.1 mm (2.0 in)
2015	29.0 mm (1.1 in)
2016	21.1 mm (0.8 in)
2021	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Chaplyne, 1936 to 2021. The record is 100.8 mm (4.0 in) in 1960, marked on the chart; the median year is 54.0 mm (2.1 in).

Wettest five days (Rx5day) at Chaplyne by year
Year	Wettest five days (Rx5day)
1936	97.9 mm (3.9 in)
1937	36.1 mm (1.4 in)
1938	62.6 mm (2.5 in)
1939	63.7 mm (2.5 in)
1940	59.4 mm (2.3 in)
1941	37.0 mm (1.5 in)
1942	76.6 mm (3.0 in)
1943	41.8 mm (1.6 in)
1944	63.9 mm (2.5 in)
1945	39.3 mm (1.5 in)
1946	63.5 mm (2.5 in)
1947	38.4 mm (1.5 in)
1948	37.3 mm (1.5 in)
1949	47.6 mm (1.9 in)
1950	86.0 mm (3.4 in)
1951	53.3 mm (2.1 in)
1952	45.0 mm (1.8 in)
1953	32.4 mm (1.3 in)
1954	46.2 mm (1.8 in)
1955	45.2 mm (1.8 in)
1956	73.0 mm (2.9 in)
1957	42.6 mm (1.7 in)
1958	60.9 mm (2.4 in)
1959	65.0 mm (2.6 in)
1960	100.8 mm (4.0 in)
1961	37.3 mm (1.5 in)
1962	81.6 mm (3.2 in)
1963	52.4 mm (2.1 in)
1964	54.5 mm (2.1 in)
1965	87.6 mm (3.4 in)
1966	81.3 mm (3.2 in)
1967	49.2 mm (1.9 in)
1968	43.0 mm (1.7 in)
1969	82.2 mm (3.2 in)
1970	48.6 mm (1.9 in)
1971	35.4 mm (1.4 in)
1972	56.2 mm (2.2 in)
1973	96.3 mm (3.8 in)
1974	47.6 mm (1.9 in)
1975	100.7 mm (4.0 in)
1976	50.0 mm (2.0 in)
1977	44.0 mm (1.7 in)
1978	83.0 mm (3.3 in)
1979	46.5 mm (1.8 in)
1980	88.2 mm (3.5 in)
1981	61.4 mm (2.4 in)
1982	42.4 mm (1.7 in)
1983	83.3 mm (3.3 in)
1984	32.3 mm (1.3 in)
1985	64.1 mm (2.5 in)
1986	56.0 mm (2.2 in)
1987	52.7 mm (2.1 in)
1988	89.8 mm (3.5 in)
1989	81.0 mm (3.2 in)
1990	40.8 mm (1.6 in)
1991	66.1 mm (2.6 in)
1992	67.1 mm (2.6 in)
1993	89.1 mm (3.5 in)
1994	60.2 mm (2.4 in)
1995	n/a
1996	n/a
1997	n/a
1998	n/a
2000	53.5 mm (2.1 in)
2001	59.0 mm (2.3 in)
2002	0.6 mm (0.02 in)
2003	81.4 mm (3.2 in)
2004	56.4 mm (2.2 in)
2005	11.2 mm (0.4 in)
2006	28.9 mm (1.1 in)
2007	12.0 mm (0.5 in)
2008	5.2 mm (0.20 in)
2009	n/a
2012	n/a
2013	n/a
2014	10.9 mm (0.4 in)
2015	35.3 mm (1.4 in)
2016	n/a
2021	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Chaplyne, 1936 to 2021. The record is 48 days in 1965, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Chaplyne by year
Year	Longest dry spell (CDD)
1936	27 days
1937	18 days
1938	40 days
1939	39 days
1940	21 days
1941	23 days
1942	23 days
1943	23 days
1944	30 days
1945	16 days
1946	20 days
1947	15 days
1948	19 days
1949	32 days
1950	22 days
1951	22 days
1952	21 days
1953	40 days
1954	29 days
1955	42 days
1956	21 days
1957	36 days
1958	19 days
1959	25 days
1960	25 days
1961	24 days
1962	32 days
1963	19 days
1964	25 days
1965	48 days
1966	15 days
1967	21 days
1968	21 days
1969	19 days
1970	21 days
1971	28 days
1972	21 days
1973	17 days
1974	23 days
1975	22 days
1976	23 days
1977	21 days
1978	14 days
1979	23 days
1980	27 days
1981	22 days
1982	46 days
1983	39 days
1984	30 days
1985	19 days
1986	42 days
1987	31 days
1988	18 days
1989	27 days
1990	24 days
1991	16 days
1992	9 days
1993	16 days
1994	13 days
1995	2 days
1996	1 day
1997	n/a
1998	n/a
2000	4 days
2001	6 days
2002	5 days
2003	6 days
2004	5 days
2005	4 days
2006	3 days
2007	4 days
2008	4 days
2009	4 days
2012	2 days
2013	n/a
2014	3 days
2015	2 days
2016	1 day
2021	n/a

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

51 years, 1936 to 1990

A day with at least 37.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 98.8 mm (3.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Chaplyne: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	37.7 mm (1.5 in)
5 years	53.4 mm (2.1 in)
10 years	64.0 mm (2.5 in)
25 years	77.7 mm (3.1 in)
50 years	88.2 mm (3.5 in)
100 years	98.8 mm (3.9 in)	Longer than the 51 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, 51 years of values from 1936 to 1990.

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: 79.8 mm (3.1 in) in 1960; 75.7 mm (3.0 in) in 1942; 73.5 mm (2.9 in) in 1973.

Download the Data

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