Arzamas Weather Records (RSM00027653)

Record envelope, standing records and threshold days for Arzamas (RSM00027653), Russia, with 90 years of record.

Key Facts for Arzamas

Arzamas (RSM00027653) is a weather station in Russia at 55.37 latitude and 43.78 longitude, 127 m (417 ft) above sea level.
The station reports from 1936 to 2025, 90 years of record.
1,464 records set at Arzamas still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Arzamas set a daily record precipitation of 42.9 mm (1.7 in) on 2 August 2025.

About the Station

Location: Russia, 55.37 latitude, 43.78 longitude.
Elevation: 127 m (417 ft).
Period of record: 1936 to 2025, 90 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

37 days at or beyond a record

The band shows the record high and record low for each calendar day at Arzamas. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Arzamas, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.7 C (38.7 F)	-36.8 C (-34.2 F)	3.7 C (38.7 F)	-23.9 C (-11.0 F)
Feb	5.4 C (41.7 F)	-38.1 C (-36.6 F)	1.8 C (35.2 F)	-20.7 C (-5.3 F)
Mar	18.4 C (65.1 F)	-33.9 C (-29.0 F)	18.4 C (65.1 F)	-11.8 C (10.8 F)
Apr	27.2 C (81.0 F)	-13.9 C (7.0 F)	27.1 C (80.8 F)	-6.6 C (20.1 F)
May	32.8 C (91.0 F)	-7.1 C (19.2 F)	30.9 C (87.6 F)	-2.2 C (28.0 F)
Jun	34.1 C (93.4 F)	-1.6 C (29.1 F)	32.6 C (90.7 F)	3.2 C (37.8 F)
Jul	35.5 C (95.9 F)	2.6 C (36.7 F)	35.5 C (95.9 F)	4.1 C (39.4 F)
Aug	37.0 C (98.6 F)	-0.4 C (31.3 F)	29.9 C (85.8 F)	1.1 C (34.0 F)
Sep	30.3 C (86.5 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	22.2 C (72.0 F)	-20.0 C (-4.0 F)	n/a	n/a
Nov	16.7 C (62.1 F)	-22.8 C (-9.0 F)	n/a	n/a
Dec	11.0 C (51.8 F)	-31.2 C (-24.2 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Arzamas still stand. 2021 holds the most, with 93.

Standing records at Arzamas by the year they were set
Year set	Standing records
1964	46
1965	75
1966	47
1967	67
1968	52
1969	54
1970	45
1971	23
1973	27
1974	40
1975	45
1976	54
1977	8
2012	48
2013	41
2014	37
2015	68
2016	51
2017	67
2018	67
2019	90
2020	78
2021	93
2022	60
2023	64
2024	62
2025	55

All-Time Record Progression

2 new records

2 all-time records were set at Arzamas between 5 July 1971 and 27 June 1988. Each dot is a new record.

When Arzamas set new all-time records
Date	Kind	Detail
1971-07-05	Record daily precipitation	Record daily precipitation 58.7 mm (2.3 in)
1988-06-27	Record daily precipitation	Record daily precipitation 72.4 mm (2.9 in)

Wettest Day of Each Month

Jun: 72.4 mm (2.9 in)

The wettest day on record for each calendar month at Arzamas. The most was 72.4 mm (2.9 in) on 27 June 1988.

Record daily precipitation for each month at Arzamas
Month	Record daily precipitation (mm)	Date
Jan	22.4 mm (0.9 in)	18 January 1955
Feb	23.9 mm (0.9 in)	2 February 2015
Mar	19.1 mm (0.8 in)	2 March 2016
Apr	25.5 mm (1.0 in)	22 April 1941
May	46.8 mm (1.8 in)	22 May 1942
Jun	72.4 mm (2.9 in)	27 June 1988
Jul	58.7 mm (2.3 in)	5 July 1971
Aug	45.0 mm (1.8 in)	9 August 1976
Sep	38.1 mm (1.5 in)	3 September 2017
Oct	47.0 mm (1.9 in)	5 October 1977
Nov	23.3 mm (0.9 in)	2 November 1994
Dec	20.6 mm (0.8 in)	3 December 1943

Period of Record Coverage

1959 to 2025

31 years of record at Arzamas, 1959 to 2025. 30 years have data for under 90 percent of days and are left out of rankings: 1959, 1961, 1962, 1963, 1964, 1965, 1966, 1967 and others.

Days with data per year at Arzamas
Year	Days with data	Share of year	Complete
1959	3	1%	No
1961	1	0%	No
1962	1	0%	No
1963	1	0%	No
1964	284	78%	No
1965	225	62%	No
1966	224	61%	No
1967	277	76%	No
1968	252	69%	No
1969	210	58%	No
1970	239	65%	No
1971	129	35%	No
1973	202	55%	No
1974	220	60%	No
1975	194	53%	No
1976	227	62%	No
1977	46	13%	No
2012	259	71%	No
2013	110	30%	No
2014	47	13%	No
2015	268	73%	No
2016	290	79%	No
2017	286	78%	No
2018	304	83%	No
2019	299	82%	No
2020	332	91%	Yes
2021	302	83%	No
2022	322	88%	No
2023	302	83%	No
2024	293	80%	No
2025	212	58%	No

Latest Records

Latest records at Arzamas
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 August 2025	Arzamas, RU	daily rain	42.9 mm (1.7 in)	18.9 mm (0.7 in)	80 years	63 of 100 (Major)
13 July 2025	Arzamas, RU	daily rain	27.9 mm (1.1 in)	6.2 mm (0.24 in)	75 years	38 of 100 (Notable)
10 May 2025	Arzamas, RU	daily rain	21.1 mm (0.8 in)	0.1 mm (0.00 in)	60 years	20 of 100 (Routine)
8 April 2025	Arzamas, RU	daily rain	14.0 mm (0.6 in)	4.8 mm (0.19 in)	86 years	20 of 100 (Routine)
6 April 2025	Arzamas, RU	daily rain	6.6 mm (0.26 in)	0.2 mm (0.01 in)	62 years	20 of 100 (Routine)
5 March 2025	Arzamas, RU	daily rain	4.6 mm (0.18 in)	1.0 mm (0.04 in)	36 years	20 of 100 (Routine)
27 January 2025	Arzamas, RU	daily rain	4.1 mm (0.16 in)	1.1 mm (0.04 in)	42 years	20 of 100 (Routine)
13 January 2025	Arzamas, RU	daily rain	7.9 mm (0.31 in)	3.8 mm (0.15 in)	9 years	20 of 100 (Routine)
24 November 2024	Arzamas, RU	daily rain	16.0 mm (0.6 in)	9.2 mm (0.36 in)	57 years	20 of 100 (Routine)
10 April 2024	Arzamas, RU	daily rain	9.4 mm (0.37 in)	0.6 mm (0.02 in)	85 years	20 of 100 (Routine)
4 February 2024	Arzamas, RU	daily rain	9.9 mm (0.39 in)	5.8 mm (0.23 in)	10 years	20 of 100 (Routine)
1 February 2024	Arzamas, RU	daily rain	5.1 mm (0.20 in)	1.3 mm (0.05 in)	49 years	20 of 100 (Routine)
19 January 2024	Arzamas, RU	daily rain	14.0 mm (0.6 in)	5.1 mm (0.20 in)	8 years	20 of 100 (Routine)
17 January 2024	Arzamas, RU	daily rain	6.4 mm (0.25 in)	0.3 mm (0.01 in)	6 years	11 of 100 (Routine)
17 October 2023	Arzamas, RU	daily rain	25.9 mm (1.0 in)	8.9 mm (0.35 in)	8 years	31 of 100 (Routine)
8 October 2023	Arzamas, RU	daily rain	18.0 mm (0.7 in)	1.9 mm (0.07 in)	30 years	20 of 100 (Routine)
10 July 2023	Arzamas, RU	daily rain	39.9 mm (1.6 in)	1.5 mm (0.06 in)	76 years	32 of 100 (Routine)
9 July 2023	Arzamas, RU	daily rain	33.0 mm (1.3 in)	15.0 mm (0.6 in)	4 years	27 of 100 (Routine)
24 June 2023	Arzamas, RU	daily rain	24.9 mm (1.0 in)	8.7 mm (0.34 in)	60 years	20 of 100 (Routine)
31 March 2023	Arzamas, RU	daily rain	8.4 mm (0.33 in)	2.3 mm (0.09 in)	62 years	20 of 100 (Routine)

Extremes by Year

1936 to 2025

Yearly extremes at Arzamas: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.0 C (98.6 F)	2021	31.8 C (89.2 F)	31
Coldest night (TNn)	-38.1 C (-36.6 F)	2021	-32.1 C (-25.8 F)	30
Wettest day (Rx1day)	72.4 mm (2.9 in)	1988	27.5 mm (1.1 in)	73
Wettest five days (Rx5day)	114.4 mm (4.5 in)	1990	50.8 mm (2.0 in)	73
Longest dry spell (CDD)	64 days	1936	24 days	73

Hottest day (TXx)

The hottest day of the year at Arzamas, 1936 to 2025. The record is 37.0 C (98.6 F) in 2021, marked on the chart; the median year is 31.8 C (89.2 F).

Hottest day (TXx) at Arzamas 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	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	0.0 C (32.0 F)
1960	n/a
1961	27.2 C (81.0 F)
1962	10.0 C (50.0 F)
1963	-3.9 C (25.0 F)
1964	31.1 C (88.0 F)
1965	28.9 C (84.0 F)
1966	33.9 C (93.0 F)
1967	31.1 C (88.0 F)
1968	32.2 C (90.0 F)
1969	32.2 C (90.0 F)
1970	32.8 C (91.0 F)
1971	30.0 C (86.0 F)
1972	n/a
1973	29.0 C (84.2 F)
1974	30.0 C (86.0 F)
1975	33.0 C (91.4 F)
1976	30.0 C (86.0 F)
1977	12.0 C (53.6 F)
1978	n/a
1979	n/a
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
1994	n/a
1996	n/a
2012	31.8 C (89.2 F)
2013	29.0 C (84.2 F)
2014	31.5 C (88.7 F)
2015	32.5 C (90.5 F)
2016	33.3 C (91.9 F)
2017	34.5 C (94.1 F)
2018	32.2 C (90.0 F)
2019	31.7 C (89.1 F)
2020	35.0 C (95.0 F)
2021	37.0 C (98.6 F)
2022	32.1 C (89.8 F)
2023	33.3 C (91.9 F)
2024	33.8 C (92.8 F)
2025	35.5 C (95.9 F)

Coldest night (TNn)

The coldest night of the year at Arzamas, 1936 to 2025. The record is -38.1 C (-36.6 F) in 2021, marked on the chart; the median year is -32.1 C (-25.8 F).

Coldest night (TNn) at Arzamas 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	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	-6.1 C (21.0 F)
1961	n/a
1962	-2.2 C (28.0 F)
1963	-23.9 C (-11.0 F)
1964	-30.0 C (-22.0 F)
1965	-32.2 C (-26.0 F)
1966	-32.8 C (-27.0 F)
1967	-37.8 C (-36.0 F)
1968	-32.8 C (-27.0 F)
1969	-36.1 C (-33.0 F)
1970	-27.8 C (-18.0 F)
1971	-26.1 C (-15.0 F)
1972	n/a
1973	-32.0 C (-25.6 F)
1974	-25.0 C (-13.0 F)
1975	-28.0 C (-18.4 F)
1976	-36.0 C (-32.8 F)
1977	-30.0 C (-22.0 F)
1978	n/a
1979	n/a
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
1994	n/a
1996	n/a
2012	-27.0 C (-16.6 F)
2013	-33.9 C (-29.0 F)
2014	-36.0 C (-32.8 F)
2015	-33.8 C (-28.8 F)
2016	-32.2 C (-26.0 F)
2017	-32.7 C (-26.9 F)
2018	-32.3 C (-26.1 F)
2019	-30.4 C (-22.7 F)
2020	-26.6 C (-15.9 F)
2021	-38.1 C (-36.6 F)
2022	-26.4 C (-15.5 F)
2023	-36.8 C (-34.2 F)
2024	-32.6 C (-26.7 F)
2025	-23.9 C (-11.0 F)

Wettest day (Rx1day)

The wettest day of the year at Arzamas, 1936 to 2025. The record is 72.4 mm (2.9 in) in 1988, marked on the chart; the median year is 27.5 mm (1.1 in).

Wettest day (Rx1day) at Arzamas by year
Year	Wettest day (Rx1day)
1936	25.2 mm (1.0 in)
1937	44.3 mm (1.7 in)
1938	18.0 mm (0.7 in)
1939	16.0 mm (0.6 in)
1940	26.1 mm (1.0 in)
1941	26.2 mm (1.0 in)
1942	46.8 mm (1.8 in)
1943	20.6 mm (0.8 in)
1944	24.0 mm (0.9 in)
1945	27.5 mm (1.1 in)
1946	38.4 mm (1.5 in)
1947	17.8 mm (0.7 in)
1948	27.2 mm (1.1 in)
1949	34.1 mm (1.3 in)
1950	24.8 mm (1.0 in)
1951	23.7 mm (0.9 in)
1952	25.2 mm (1.0 in)
1953	33.4 mm (1.3 in)
1954	24.0 mm (0.9 in)
1955	25.1 mm (1.0 in)
1956	24.0 mm (0.9 in)
1957	16.5 mm (0.6 in)
1958	23.5 mm (0.9 in)
1959	25.0 mm (1.0 in)
1960	20.7 mm (0.8 in)
1961	29.3 mm (1.2 in)
1962	31.5 mm (1.2 in)
1963	27.0 mm (1.1 in)
1964	48.9 mm (1.9 in)
1965	53.0 mm (2.1 in)
1966	30.8 mm (1.2 in)
1967	9.8 mm (0.39 in)
1968	28.4 mm (1.1 in)
1969	27.5 mm (1.1 in)
1970	44.5 mm (1.8 in)
1971	58.7 mm (2.3 in)
1972	27.8 mm (1.1 in)
1973	22.1 mm (0.9 in)
1974	20.1 mm (0.8 in)
1975	26.9 mm (1.1 in)
1976	45.0 mm (1.8 in)
1977	47.0 mm (1.9 in)
1978	30.8 mm (1.2 in)
1979	30.9 mm (1.2 in)
1980	30.2 mm (1.2 in)
1981	20.2 mm (0.8 in)
1982	26.3 mm (1.0 in)
1983	58.0 mm (2.3 in)
1984	40.0 mm (1.6 in)
1985	21.0 mm (0.8 in)
1986	43.1 mm (1.7 in)
1987	26.2 mm (1.0 in)
1988	72.4 mm (2.9 in)
1989	48.3 mm (1.9 in)
1990	48.4 mm (1.9 in)
1991	34.4 mm (1.4 in)
1992	22.3 mm (0.9 in)
1994	43.9 mm (1.7 in)
1996	40.4 mm (1.6 in)
2012	16.0 mm (0.6 in)
2013	25.9 mm (1.0 in)
2014	17.0 mm (0.7 in)
2015	32.0 mm (1.3 in)
2016	23.1 mm (0.9 in)
2017	45.0 mm (1.8 in)
2018	49.0 mm (1.9 in)
2019	55.1 mm (2.2 in)
2020	39.1 mm (1.5 in)
2021	20.1 mm (0.8 in)
2022	33.0 mm (1.3 in)
2023	39.9 mm (1.6 in)
2024	24.9 mm (1.0 in)
2025	42.9 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Arzamas, 1936 to 2025. The record is 114.4 mm (4.5 in) in 1990, marked on the chart; the median year is 50.8 mm (2.0 in).

Wettest five days (Rx5day) at Arzamas by year
Year	Wettest five days (Rx5day)
1936	43.9 mm (1.7 in)
1937	97.3 mm (3.8 in)
1938	31.8 mm (1.3 in)
1939	28.4 mm (1.1 in)
1940	31.7 mm (1.2 in)
1941	63.9 mm (2.5 in)
1942	74.2 mm (2.9 in)
1943	28.0 mm (1.1 in)
1944	53.8 mm (2.1 in)
1945	44.4 mm (1.7 in)
1946	63.7 mm (2.5 in)
1947	38.4 mm (1.5 in)
1948	42.7 mm (1.7 in)
1949	63.6 mm (2.5 in)
1950	57.4 mm (2.3 in)
1951	25.0 mm (1.0 in)
1952	47.8 mm (1.9 in)
1953	45.2 mm (1.8 in)
1954	38.2 mm (1.5 in)
1955	38.2 mm (1.5 in)
1956	47.4 mm (1.9 in)
1957	43.5 mm (1.7 in)
1958	47.3 mm (1.9 in)
1959	46.3 mm (1.8 in)
1960	27.6 mm (1.1 in)
1961	56.8 mm (2.2 in)
1962	52.9 mm (2.1 in)
1963	53.7 mm (2.1 in)
1964	63.1 mm (2.5 in)
1965	69.5 mm (2.7 in)
1966	63.0 mm (2.5 in)
1967	25.0 mm (1.0 in)
1968	39.8 mm (1.6 in)
1969	42.3 mm (1.7 in)
1970	55.8 mm (2.2 in)
1971	90.4 mm (3.6 in)
1972	35.0 mm (1.4 in)
1973	31.0 mm (1.2 in)
1974	53.4 mm (2.1 in)
1975	30.2 mm (1.2 in)
1976	50.6 mm (2.0 in)
1977	72.7 mm (2.9 in)
1978	56.5 mm (2.2 in)
1979	74.6 mm (2.9 in)
1980	54.2 mm (2.1 in)
1981	44.2 mm (1.7 in)
1982	52.0 mm (2.0 in)
1983	66.5 mm (2.6 in)
1984	72.1 mm (2.8 in)
1985	46.5 mm (1.8 in)
1986	60.6 mm (2.4 in)
1987	33.0 mm (1.3 in)
1988	74.0 mm (2.9 in)
1989	65.9 mm (2.6 in)
1990	114.4 mm (4.5 in)
1991	57.1 mm (2.2 in)
1992	35.2 mm (1.4 in)
1994	71.1 mm (2.8 in)
1996	47.4 mm (1.9 in)
2012	25.9 mm (1.0 in)
2013	23.3 mm (0.9 in)
2014	10.7 mm (0.4 in)
2015	46.7 mm (1.8 in)
2016	59.2 mm (2.3 in)
2017	95.2 mm (3.7 in)
2018	81.3 mm (3.2 in)
2019	69.1 mm (2.7 in)
2020	56.6 mm (2.2 in)
2021	33.1 mm (1.3 in)
2022	77.2 mm (3.0 in)
2023	106.2 mm (4.2 in)
2024	42.6 mm (1.7 in)
2025	50.8 mm (2.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Arzamas, 1936 to 2025. The record is 64 days in 1936, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Arzamas by year
Year	Longest dry spell (CDD)
1936	64 days
1937	32 days
1938	25 days
1939	27 days
1940	33 days
1941	38 days
1942	27 days
1943	31 days
1944	32 days
1945	45 days
1946	26 days
1947	16 days
1948	35 days
1949	40 days
1950	44 days
1951	30 days
1952	26 days
1953	21 days
1954	23 days
1955	24 days
1956	28 days
1957	38 days
1958	25 days
1959	36 days
1960	21 days
1961	20 days
1962	25 days
1963	29 days
1964	22 days
1965	18 days
1966	14 days
1967	33 days
1968	14 days
1969	36 days
1970	14 days
1971	18 days
1972	41 days
1973	21 days
1974	16 days
1975	14 days
1976	16 days
1977	17 days
1978	16 days
1979	47 days
1980	20 days
1981	31 days
1982	39 days
1983	24 days
1984	53 days
1985	34 days
1986	25 days
1987	44 days
1988	21 days
1989	14 days
1990	15 days
1991	24 days
1992	33 days
1994	19 days
1996	44 days
2012	16 days
2013	13 days
2014	5 days
2015	16 days
2016	26 days
2017	12 days
2018	15 days
2019	14 days
2020	12 days
2021	12 days
2022	14 days
2023	14 days
2024	23 days
2025	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

55 years, 1936 to 2022

A day with at least 29.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 79.3 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Arzamas: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.1 mm (1.1 in)
5 years	40.2 mm (1.6 in)
10 years	48.4 mm (1.9 in)
25 years	59.8 mm (2.4 in)
50 years	69.2 mm (2.7 in)
100 years	79.3 mm (3.1 in)	Longer than the 55 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, 55 years of values from 1936 to 2022.

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: 72.4 mm (2.9 in) in 1988; 58.7 mm (2.3 in) in 1971; 58.0 mm (2.3 in) in 1983.

Download the Data

Data for Arzamas standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Arzamas 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 2026-10-16 (16 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).