Bilasuvar Weather Records (AJ000037972)

Record envelope, standing records and threshold days for Bilasuvar (AJ000037972), Azerbaijan, with 57 years of record.

Key Facts for Bilasuvar

Bilasuvar (AJ000037972) is a weather station in Azerbaijan at 39.47 latitude and 48.55 longitude, 3 m (10 ft) above sea level.
The station reports from 1936 to 1992, 57 years of record.
1,202 records set at Bilasuvar still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Bilasuvar set a daily record precipitation of 28.0 mm (1.1 in) on 15 October 1991.

About the Station

Location: Azerbaijan, 39.47 latitude, 48.55 longitude.
Elevation: 3 m (10 ft).
Period of record: 1936 to 1992, 57 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 Bilasuvar. 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 Bilasuvar, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.0 C (69.8 F)	-10.2 C (13.6 F)	n/a	n/a
Feb	19.2 C (66.6 F)	-5.0 C (23.0 F)	n/a	n/a
Mar	20.4 C (68.7 F)	-4.1 C (24.6 F)	n/a	n/a
Apr	29.7 C (85.5 F)	1.0 C (33.8 F)	n/a	n/a
May	32.0 C (89.6 F)	9.0 C (48.2 F)	n/a	n/a
Jun	36.5 C (97.7 F)	13.0 C (55.4 F)	n/a	n/a
Jul	40.3 C (104.5 F)	19.1 C (66.4 F)	n/a	n/a
Aug	37.2 C (99.0 F)	13.6 C (56.5 F)	n/a	n/a
Sep	35.4 C (95.7 F)	11.1 C (52.0 F)	n/a	n/a
Oct	29.0 C (84.2 F)	4.0 C (39.2 F)	n/a	n/a
Nov	24.2 C (75.6 F)	0.0 C (32.0 F)	n/a	n/a
Dec	19.6 C (67.3 F)	-6.0 C (21.2 F)	n/a	n/a

Which Years Hold Standing Records

1,202 standing records

1,202 records at Bilasuvar still stand. 1990 holds the most, with 244.

Standing records at Bilasuvar by the year they were set
Year set	Standing records
1948	3
1959	1
1960	14
1961	19
1962	68
1963	26
1973	3
1974	6
1975	5
1976	19
1977	31
1978	32
1979	54
1980	18
1981	21
1982	13
1984	11
1985	44
1986	73
1987	97
1988	24
1989	165
1990	244
1991	211

Wettest Day of Each Month

Sep: 62.0 mm (2.4 in)

The wettest day on record for each calendar month at Bilasuvar. The most was 62.0 mm (2.4 in) on 12 September 1956.

Record daily precipitation for each month at Bilasuvar
Month	Record daily precipitation (mm)	Date
Jan	29.2 mm (1.1 in)	6 January 1945
Feb	35.0 mm (1.4 in)	22 February 1973
Mar	33.8 mm (1.3 in)	20 March 1966
Apr	41.2 mm (1.6 in)	20 April 1970
May	51.6 mm (2.0 in)	5 May 1984
Jun	47.4 mm (1.9 in)	17 June 1936
Jul	23.8 mm (0.9 in)	12 July 1968
Aug	45.8 mm (1.8 in)	28 August 1963
Sep	62.0 mm (2.4 in)	12 September 1956
Oct	43.2 mm (1.7 in)	4 October 1975
Nov	40.1 mm (1.6 in)	5 November 1981
Dec	31.2 mm (1.2 in)	26 December 1987

Period of Record Coverage

1948 to 1991

23 years of record at Bilasuvar, 1948 to 1991. 23 years have data for under 90 percent of days and are left out of rankings: 1948, 1960, 1961, 1962, 1963, 1973, 1974, 1975 and others.

Days with data per year at Bilasuvar
Year	Days with data	Share of year	Complete
1948	1	0%	No
1960	11	3%	No
1961	11	3%	No
1962	32	9%	No
1963	10	3%	No
1973	3	1%	No
1974	4	1%	No
1975	3	1%	No
1976	8	2%	No
1977	14	4%	No
1978	17	5%	No
1979	29	8%	No
1980	10	3%	No
1981	11	3%	No
1982	7	2%	No
1984	8	2%	No
1985	22	6%	No
1986	40	11%	No
1987	39	11%	No
1988	11	3%	No
1989	81	22%	No
1990	118	32%	No
1991	112	31%	No

Latest Records

Latest records at Bilasuvar
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 October 1991	Bilasuvar, AZ	daily rain	28.0 mm (1.1 in)	6.3 mm (0.25 in)	25 years	21 of 100 (Routine)
14 July 1991	Bilasuvar, AZ	daily rain	10.2 mm (0.4 in)	10.1 mm (0.4 in)	29 years	20 of 100 (Routine)
14 May 1991	Bilasuvar, AZ	daily rain	12.4 mm (0.5 in)	1.8 mm (0.07 in)	24 years	14 of 100 (Routine)
5 April 1991	Bilasuvar, AZ	daily rain	17.6 mm (0.7 in)	5.0 mm (0.20 in)	21 years	20 of 100 (Routine)
10 March 1991	Bilasuvar, AZ	daily rain	10.8 mm (0.4 in)	0.6 mm (0.02 in)	41 years	18 of 100 (Routine)
19 January 1991	Bilasuvar, AZ	daily rain	10.3 mm (0.4 in)	6.7 mm (0.26 in)	33 years	20 of 100 (Routine)
14 October 1990	Bilasuvar, AZ	daily rain	26.4 mm (1.0 in)	13.2 mm (0.5 in)	39 years	36 of 100 (Notable)
22 April 1990	Bilasuvar, AZ	daily rain	12.8 mm (0.5 in)	7.3 mm (0.29 in)	24 years	20 of 100 (Routine)
16 April 1990	Bilasuvar, AZ	daily rain	21.0 mm (0.8 in)	6.4 mm (0.25 in)	9 years	18 of 100 (Routine)
2 April 1990	Bilasuvar, AZ	daily rain	13.3 mm (0.5 in)	4.8 mm (0.19 in)	20 years	19 of 100 (Routine)
6 March 1990	Bilasuvar, AZ	daily rain	9.6 mm (0.38 in)	1.3 mm (0.05 in)	7 years	9 of 100 (Routine)
23 January 1990	Bilasuvar, AZ	daily rain	26.2 mm (1.0 in)	15.0 mm (0.6 in)	16 years	41 of 100 (Notable)
31 October 1989	Bilasuvar, AZ	daily rain	24.6 mm (1.0 in)	5.9 mm (0.23 in)	42 years	20 of 100 (Routine)
30 October 1989	Bilasuvar, AZ	daily rain	35.0 mm (1.4 in)	20.7 mm (0.8 in)	38 years	49 of 100 (Notable)
21 October 1989	Bilasuvar, AZ	daily rain	18.6 mm (0.7 in)	1.4 mm (0.06 in)	28 years	15 of 100 (Routine)
19 September 1989	Bilasuvar, AZ	daily rain	11.4 mm (0.4 in)	2.9 mm (0.11 in)	36 years	19 of 100 (Routine)
23 February 1989	Bilasuvar, AZ	daily rain	6.6 mm (0.26 in)	0.8 mm (0.03 in)	37 years	17 of 100 (Routine)
27 December 1988	Bilasuvar, AZ	daily rain	24.9 mm (1.0 in)	19.5 mm (0.8 in)	44 years	20 of 100 (Routine)
17 December 1988	Bilasuvar, AZ	daily rain	15.9 mm (0.6 in)	6.4 mm (0.25 in)	45 years	20 of 100 (Routine)
9 October 1988	Bilasuvar, AZ	daily rain	19.2 mm (0.8 in)	10.1 mm (0.4 in)	9 years	20 of 100 (Routine)

Extremes by Year

1936 to 1992

Yearly extremes at Bilasuvar: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.3 C (104.5 F)	1991	34.0 C (93.2 F)	23
Coldest night (TNn)	-10.2 C (13.6 F)	1990	-2.0 C (28.4 F)	24
Wettest day (Rx1day)	62.0 mm (2.4 in)	1956	29.2 mm (1.1 in)	57
Wettest five days (Rx5day)	85.5 mm (3.4 in)	1982	42.5 mm (1.7 in)	57
Longest dry spell (CDD)	118 days	1989	45 days	57

Hottest day (TXx)

The hottest day of the year at Bilasuvar, 1936 to 1992. The record is 40.3 C (104.5 F) in 1991, marked on the chart; the median year is 34.0 C (93.2 F).

Hottest day (TXx) at Bilasuvar 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	10.0 C (50.0 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	12.8 C (55.0 F)
1961	36.1 C (97.0 F)
1962	40.0 C (104.0 F)
1963	37.2 C (99.0 F)
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	24.0 C (75.2 F)
1974	30.0 C (86.0 F)
1975	35.0 C (95.0 F)
1976	28.0 C (82.4 F)
1977	34.0 C (93.2 F)
1978	35.0 C (95.0 F)
1979	32.0 C (89.6 F)
1980	32.0 C (89.6 F)
1981	35.0 C (95.0 F)
1982	29.9 C (85.8 F)
1983	n/a
1984	24.1 C (75.4 F)
1985	33.5 C (92.3 F)
1986	37.8 C (100.0 F)
1987	30.6 C (87.1 F)
1988	35.4 C (95.7 F)
1989	36.4 C (97.5 F)
1990	36.5 C (97.7 F)
1991	40.3 C (104.5 F)
1992	n/a

Coldest night (TNn)

The coldest night of the year at Bilasuvar, 1936 to 1992. The record is -10.2 C (13.6 F) in 1990, marked on the chart; the median year is -2.0 C (28.4 F).

Coldest night (TNn) at Bilasuvar 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	0.0 C (32.0 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	3.9 C (39.0 F)
1960	-1.1 C (30.0 F)
1961	3.9 C (39.0 F)
1962	-2.8 C (27.0 F)
1963	-2.2 C (28.0 F)
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	-6.0 C (21.2 F)
1974	-2.0 C (28.4 F)
1975	0.0 C (32.0 F)
1976	-5.0 C (23.0 F)
1977	1.0 C (33.8 F)
1978	-1.0 C (30.2 F)
1979	-1.0 C (30.2 F)
1980	1.0 C (33.8 F)
1981	5.0 C (41.0 F)
1982	-2.0 C (28.4 F)
1983	n/a
1984	0.9 C (33.6 F)
1985	-4.1 C (24.6 F)
1986	-3.9 C (25.0 F)
1987	-2.5 C (27.5 F)
1988	-2.7 C (27.1 F)
1989	-2.9 C (26.8 F)
1990	-10.2 C (13.6 F)
1991	-2.8 C (27.0 F)
1992	n/a

Wettest day (Rx1day)

The wettest day of the year at Bilasuvar, 1936 to 1992. The record is 62.0 mm (2.4 in) in 1956, marked on the chart; the median year is 29.2 mm (1.1 in).

Wettest day (Rx1day) at Bilasuvar by year
Year	Wettest day (Rx1day)
1936	47.4 mm (1.9 in)
1937	23.7 mm (0.9 in)
1938	30.0 mm (1.2 in)
1939	35.9 mm (1.4 in)
1940	21.6 mm (0.9 in)
1941	17.8 mm (0.7 in)
1942	39.4 mm (1.6 in)
1943	27.1 mm (1.1 in)
1944	15.0 mm (0.6 in)
1945	29.2 mm (1.1 in)
1946	29.3 mm (1.2 in)
1947	20.4 mm (0.8 in)
1948	13.7 mm (0.5 in)
1949	25.5 mm (1.0 in)
1950	11.5 mm (0.5 in)
1951	26.5 mm (1.0 in)
1952	32.2 mm (1.3 in)
1953	35.5 mm (1.4 in)
1954	36.6 mm (1.4 in)
1955	18.6 mm (0.7 in)
1956	62.0 mm (2.4 in)
1957	21.6 mm (0.9 in)
1958	33.7 mm (1.3 in)
1959	28.3 mm (1.1 in)
1960	22.3 mm (0.9 in)
1961	30.7 mm (1.2 in)
1962	42.0 mm (1.7 in)
1963	45.8 mm (1.8 in)
1964	21.6 mm (0.9 in)
1965	21.7 mm (0.9 in)
1966	36.9 mm (1.5 in)
1967	28.8 mm (1.1 in)
1968	36.5 mm (1.4 in)
1969	23.7 mm (0.9 in)
1970	41.2 mm (1.6 in)
1971	15.7 mm (0.6 in)
1972	22.7 mm (0.9 in)
1973	35.0 mm (1.4 in)
1974	22.8 mm (0.9 in)
1975	43.2 mm (1.7 in)
1976	20.9 mm (0.8 in)
1977	39.3 mm (1.5 in)
1978	33.0 mm (1.3 in)
1979	26.1 mm (1.0 in)
1980	32.9 mm (1.3 in)
1981	40.1 mm (1.6 in)
1982	37.2 mm (1.5 in)
1983	34.4 mm (1.4 in)
1984	51.6 mm (2.0 in)
1985	23.6 mm (0.9 in)
1986	20.4 mm (0.8 in)
1987	31.2 mm (1.2 in)
1988	44.0 mm (1.7 in)
1989	35.0 mm (1.4 in)
1990	26.4 mm (1.0 in)
1991	28.0 mm (1.1 in)
1992	11.5 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bilasuvar, 1936 to 1992. The record is 85.5 mm (3.4 in) in 1982, marked on the chart; the median year is 42.5 mm (1.7 in).

Wettest five days (Rx5day) at Bilasuvar by year
Year	Wettest five days (Rx5day)
1936	50.9 mm (2.0 in)
1937	29.5 mm (1.2 in)
1938	57.4 mm (2.3 in)
1939	62.1 mm (2.4 in)
1940	50.5 mm (2.0 in)
1941	23.2 mm (0.9 in)
1942	82.0 mm (3.2 in)
1943	54.1 mm (2.1 in)
1944	28.0 mm (1.1 in)
1945	41.7 mm (1.6 in)
1946	42.1 mm (1.7 in)
1947	39.7 mm (1.6 in)
1948	16.4 mm (0.6 in)
1949	43.4 mm (1.7 in)
1950	27.9 mm (1.1 in)
1951	58.0 mm (2.3 in)
1952	45.0 mm (1.8 in)
1953	66.9 mm (2.6 in)
1954	52.6 mm (2.1 in)
1955	36.4 mm (1.4 in)
1956	62.0 mm (2.4 in)
1957	40.8 mm (1.6 in)
1958	47.1 mm (1.9 in)
1959	41.7 mm (1.6 in)
1960	32.0 mm (1.3 in)
1961	31.0 mm (1.2 in)
1962	55.6 mm (2.2 in)
1963	53.5 mm (2.1 in)
1964	39.6 mm (1.6 in)
1965	32.7 mm (1.3 in)
1966	52.8 mm (2.1 in)
1967	31.6 mm (1.2 in)
1968	42.2 mm (1.7 in)
1969	45.8 mm (1.8 in)
1970	53.3 mm (2.1 in)
1971	22.7 mm (0.9 in)
1972	36.5 mm (1.4 in)
1973	54.1 mm (2.1 in)
1974	39.2 mm (1.5 in)
1975	65.8 mm (2.6 in)
1976	28.9 mm (1.1 in)
1977	55.2 mm (2.2 in)
1978	42.0 mm (1.7 in)
1979	32.5 mm (1.3 in)
1980	37.8 mm (1.5 in)
1981	43.4 mm (1.7 in)
1982	85.5 mm (3.4 in)
1983	36.9 mm (1.5 in)
1984	72.5 mm (2.9 in)
1985	33.5 mm (1.3 in)
1986	42.5 mm (1.7 in)
1987	50.2 mm (2.0 in)
1988	45.0 mm (1.8 in)
1989	59.9 mm (2.4 in)
1990	36.8 mm (1.4 in)
1991	59.4 mm (2.3 in)
1992	12.5 mm (0.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bilasuvar, 1936 to 1992. The record is 118 days in 1989, marked on the chart; the median year is 45 days.

Longest dry spell (CDD) at Bilasuvar by year
Year	Longest dry spell (CDD)
1936	27 days
1937	50 days
1938	69 days
1939	51 days
1940	59 days
1941	60 days
1942	27 days
1943	24 days
1944	28 days
1945	29 days
1946	32 days
1947	39 days
1948	45 days
1949	58 days
1950	78 days
1951	41 days
1952	74 days
1953	37 days
1954	50 days
1955	49 days
1956	75 days
1957	40 days
1958	35 days
1959	40 days
1960	59 days
1961	66 days
1962	74 days
1963	44 days
1964	31 days
1965	34 days
1966	25 days
1967	41 days
1968	40 days
1969	76 days
1970	69 days
1971	52 days
1972	41 days
1973	114 days
1974	67 days
1975	87 days
1976	39 days
1977	27 days
1978	110 days
1979	40 days
1980	89 days
1981	42 days
1982	29 days
1983	43 days
1984	75 days
1985	111 days
1986	50 days
1987	36 days
1988	28 days
1989	118 days
1990	105 days
1991	76 days
1992	20 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

51 years, 1937 to 1991

A day with at least 29.4 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 57.4 mm (2.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Bilasuvar: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.4 mm (1.2 in)
5 years	38.3 mm (1.5 in)
10 years	43.6 mm (1.7 in)
25 years	49.7 mm (2.0 in)
50 years	53.7 mm (2.1 in)
100 years	57.4 mm (2.3 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 1937 to 1991.

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: 62.0 mm (2.4 in) in 1956; 51.6 mm (2.0 in) in 1984; 45.8 mm (1.8 in) in 1963.

Download the Data

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