Baku Weather Records (AJ000037850)

Record envelope, standing records and threshold days for Baku (AJ000037850), Azerbaijan, with 112 years of record.

Key Facts for Baku

Baku (AJ000037850) is a weather station in Azerbaijan at 40.40 latitude and 49.80 longitude, 47 m (154 ft) above sea level.
The station reports from 1881 to 1992, 112 years of record.
0 records set at Baku still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Baku tied a daily record precipitation of 10.1 mm (0.4 in) on 13 May 1991.

About the Station

Location: Azerbaijan, 40.40 latitude, 49.80 longitude.
Elevation: 47 m (154 ft).
Period of record: 1881 to 1992, 112 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 Baku. 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 Baku, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Baku still stand.

Wettest Day of Each Month

Dec: 85.0 mm (3.3 in)

The wettest day on record for each calendar month at Baku. The most was 85.0 mm (3.3 in) on 12 December 1899.

Record daily precipitation for each month at Baku
Month	Record daily precipitation (mm)	Date
Jan	43.7 mm (1.7 in)	20 January 1944
Feb	27.1 mm (1.1 in)	13 February 1890
Mar	38.8 mm (1.5 in)	15 March 1946
Apr	73.3 mm (2.9 in)	23 April 1966
May	63.1 mm (2.5 in)	4 May 1963
Jun	33.5 mm (1.3 in)	20 June 1948
Jul	28.4 mm (1.1 in)	14 July 1922
Aug	41.4 mm (1.6 in)	27 August 1932
Sep	78.0 mm (3.1 in)	13 September 1894
Oct	65.2 mm (2.6 in)	28 October 1946
Nov	75.0 mm (3.0 in)	30 November 1899
Dec	85.0 mm (3.3 in)	12 December 1899

Latest Records

Latest records at Baku
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
13 May 1991	Baku, AZ	daily rain (Tie)	10.1 mm (0.4 in)	tie	82 years	8 of 100 (Routine)
7 March 1991	Baku, AZ	daily rain	24.6 mm (1.0 in)	14.5 mm (0.6 in)	33 years	20 of 100 (Routine)
13 December 1990	Baku, AZ	daily rain	12.4 mm (0.5 in)	0.2 mm (0.01 in)	84 years	20 of 100 (Routine)
28 November 1990	Baku, AZ	daily rain	16.3 mm (0.6 in)	1.8 mm (0.07 in)	63 years	20 of 100 (Routine)
24 January 1990	Baku, AZ	daily rain	16.8 mm (0.7 in)	1.9 mm (0.07 in)	84 years	20 of 100 (Routine)
27 December 1988	Baku, AZ	daily rain	15.2 mm (0.6 in)	8.4 mm (0.33 in)	91 years	20 of 100 (Routine)
2 September 1988	Baku, AZ	daily rain	9.4 mm (0.37 in)	5.7 mm (0.22 in)	58 years	20 of 100 (Routine)
16 August 1988	Baku, AZ	daily rain	17.3 mm (0.7 in)	8.5 mm (0.33 in)	60 years	20 of 100 (Routine)
5 August 1988	Baku, AZ	daily rain	9.1 mm (0.36 in)	5.6 mm (0.22 in)	81 years	20 of 100 (Routine)
24 June 1988	Baku, AZ	daily rain	11.8 mm (0.5 in)	9.9 mm (0.39 in)	58 years	20 of 100 (Routine)
19 June 1988	Baku, AZ	daily rain	17.7 mm (0.7 in)	10.5 mm (0.4 in)	77 years	20 of 100 (Routine)
18 June 1988	Baku, AZ	daily rain	19.8 mm (0.8 in)	16.4 mm (0.6 in)	54 years	20 of 100 (Routine)
26 April 1988	Baku, AZ	daily rain	9.0 mm (0.35 in)	2.3 mm (0.09 in)	80 years	20 of 100 (Routine)
27 March 1988	Baku, AZ	daily rain	17.6 mm (0.7 in)	9.5 mm (0.37 in)	85 years	20 of 100 (Routine)
22 March 1988	Baku, AZ	daily rain	7.9 mm (0.31 in)	0.8 mm (0.03 in)	52 years	20 of 100 (Routine)
21 March 1988	Baku, AZ	daily rain	36.8 mm (1.4 in)	12.7 mm (0.5 in)	79 years	62 of 100 (Major)
5 March 1988	Baku, AZ	daily rain	8.2 mm (0.32 in)	2.0 mm (0.08 in)	16 years	18 of 100 (Routine)
24 November 1987	Baku, AZ	daily rain	17.4 mm (0.7 in)	8.4 mm (0.33 in)	58 years	20 of 100 (Routine)
10 July 1987	Baku, AZ	daily rain	4.1 mm (0.16 in)	2.8 mm (0.11 in)	48 years	20 of 100 (Routine)
20 March 1987	Baku, AZ	daily rain	29.1 mm (1.1 in)	17.9 mm (0.7 in)	20 years	56 of 100 (Notable)

Extremes by Year

1881 to 1992

Yearly extremes at Baku: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	85.0 mm (3.3 in)	1899	23.1 mm (0.9 in)	112
Wettest five days (Rx5day)	151.0 mm (5.9 in)	1899	35.1 mm (1.4 in)	112
Longest dry spell (CDD)	150 days	1889	62 days	112

Wettest day (Rx1day)

The wettest day of the year at Baku, 1881 to 1992. The record is 85.0 mm (3.3 in) in 1899, marked on the chart; the median year is 23.1 mm (0.9 in).

Wettest day (Rx1day) at Baku by year
Year	Wettest day (Rx1day)
1881	42.4 mm (1.7 in)
1882	24.0 mm (0.9 in)
1883	27.7 mm (1.1 in)
1884	23.8 mm (0.9 in)
1885	18.3 mm (0.7 in)
1886	41.6 mm (1.6 in)
1887	11.6 mm (0.5 in)
1888	18.7 mm (0.7 in)
1889	18.8 mm (0.7 in)
1890	27.1 mm (1.1 in)
1891	22.7 mm (0.9 in)
1892	16.8 mm (0.7 in)
1893	25.1 mm (1.0 in)
1894	78.0 mm (3.1 in)
1895	14.7 mm (0.6 in)
1896	15.5 mm (0.6 in)
1897	26.7 mm (1.1 in)
1898	18.7 mm (0.7 in)
1899	85.0 mm (3.3 in)
1900	14.7 mm (0.6 in)
1901	28.3 mm (1.1 in)
1902	16.7 mm (0.7 in)
1903	17.2 mm (0.7 in)
1904	11.5 mm (0.5 in)
1905	23.7 mm (0.9 in)
1906	25.8 mm (1.0 in)
1907	25.2 mm (1.0 in)
1908	25.5 mm (1.0 in)
1909	24.1 mm (0.9 in)
1910	17.5 mm (0.7 in)
1911	35.4 mm (1.4 in)
1912	20.2 mm (0.8 in)
1913	40.1 mm (1.6 in)
1914	37.0 mm (1.5 in)
1915	17.7 mm (0.7 in)
1916	15.5 mm (0.6 in)
1917	15.1 mm (0.6 in)
1918	16.5 mm (0.6 in)
1919	22.7 mm (0.9 in)
1920	2.0 mm (0.08 in)
1921	0.0 mm (0.00 in)
1922	28.4 mm (1.1 in)
1923	15.1 mm (0.6 in)
1924	33.7 mm (1.3 in)
1925	9.8 mm (0.39 in)
1926	23.6 mm (0.9 in)
1927	17.3 mm (0.7 in)
1928	31.8 mm (1.3 in)
1929	14.1 mm (0.6 in)
1930	21.9 mm (0.9 in)
1931	19.2 mm (0.8 in)
1932	41.4 mm (1.6 in)
1933	15.3 mm (0.6 in)
1934	18.6 mm (0.7 in)
1935	16.3 mm (0.6 in)
1936	24.3 mm (1.0 in)
1937	65.4 mm (2.6 in)
1938	14.4 mm (0.6 in)
1939	15.9 mm (0.6 in)
1940	14.6 mm (0.6 in)
1941	32.7 mm (1.3 in)
1942	18.9 mm (0.7 in)
1943	19.9 mm (0.8 in)
1944	43.7 mm (1.7 in)
1945	33.7 mm (1.3 in)
1946	65.2 mm (2.6 in)
1947	19.1 mm (0.8 in)
1948	33.5 mm (1.3 in)
1949	41.0 mm (1.6 in)
1950	28.1 mm (1.1 in)
1951	21.0 mm (0.8 in)
1952	14.0 mm (0.6 in)
1953	17.0 mm (0.7 in)
1954	23.1 mm (0.9 in)
1955	29.5 mm (1.2 in)
1956	23.1 mm (0.9 in)
1957	45.9 mm (1.8 in)
1958	21.0 mm (0.8 in)
1959	10.9 mm (0.4 in)
1960	17.2 mm (0.7 in)
1961	44.6 mm (1.8 in)
1962	23.0 mm (0.9 in)
1963	63.1 mm (2.5 in)
1964	14.6 mm (0.6 in)
1965	17.9 mm (0.7 in)
1966	73.3 mm (2.9 in)
1967	35.2 mm (1.4 in)
1968	31.6 mm (1.2 in)
1969	27.3 mm (1.1 in)
1970	30.1 mm (1.2 in)
1971	22.8 mm (0.9 in)
1972	25.1 mm (1.0 in)
1973	49.2 mm (1.9 in)
1974	21.3 mm (0.8 in)
1975	18.8 mm (0.7 in)
1976	27.0 mm (1.1 in)
1977	25.8 mm (1.0 in)
1978	26.3 mm (1.0 in)
1979	32.5 mm (1.3 in)
1980	46.0 mm (1.8 in)
1981	17.2 mm (0.7 in)
1982	44.2 mm (1.7 in)
1983	16.7 mm (0.7 in)
1984	30.0 mm (1.2 in)
1985	22.3 mm (0.9 in)
1986	22.6 mm (0.9 in)
1987	29.1 mm (1.1 in)
1988	36.8 mm (1.4 in)
1989	30.3 mm (1.2 in)
1990	16.8 mm (0.7 in)
1991	24.6 mm (1.0 in)
1992	4.8 mm (0.19 in)

Wettest five days (Rx5day)

The wettest five days of the year at Baku, 1881 to 1992. The record is 151.0 mm (5.9 in) in 1899, marked on the chart; the median year is 35.1 mm (1.4 in).

Wettest five days (Rx5day) at Baku by year
Year	Wettest five days (Rx5day)
1881	57.0 mm (2.2 in)
1882	50.7 mm (2.0 in)
1883	54.3 mm (2.1 in)
1884	25.6 mm (1.0 in)
1885	26.5 mm (1.0 in)
1886	43.8 mm (1.7 in)
1887	20.5 mm (0.8 in)
1888	35.1 mm (1.4 in)
1889	32.5 mm (1.3 in)
1890	35.8 mm (1.4 in)
1891	24.8 mm (1.0 in)
1892	27.3 mm (1.1 in)
1893	25.4 mm (1.0 in)
1894	82.6 mm (3.3 in)
1895	26.8 mm (1.1 in)
1896	21.2 mm (0.8 in)
1897	46.7 mm (1.8 in)
1898	21.5 mm (0.8 in)
1899	151.0 mm (5.9 in)
1900	26.3 mm (1.0 in)
1901	53.3 mm (2.1 in)
1902	41.0 mm (1.6 in)
1903	24.5 mm (1.0 in)
1904	13.9 mm (0.5 in)
1905	40.0 mm (1.6 in)
1906	61.1 mm (2.4 in)
1907	38.6 mm (1.5 in)
1908	43.8 mm (1.7 in)
1909	35.4 mm (1.4 in)
1910	31.6 mm (1.2 in)
1911	66.1 mm (2.6 in)
1912	29.3 mm (1.2 in)
1913	48.8 mm (1.9 in)
1914	48.3 mm (1.9 in)
1915	21.3 mm (0.8 in)
1916	18.8 mm (0.7 in)
1917	20.6 mm (0.8 in)
1918	23.9 mm (0.9 in)
1919	38.1 mm (1.5 in)
1920	3.0 mm (0.12 in)
1921	0.0 mm (0.00 in)
1922	47.6 mm (1.9 in)
1923	24.2 mm (1.0 in)
1924	33.7 mm (1.3 in)
1925	13.8 mm (0.5 in)
1926	37.6 mm (1.5 in)
1927	40.5 mm (1.6 in)
1928	33.8 mm (1.3 in)
1929	22.4 mm (0.9 in)
1930	32.6 mm (1.3 in)
1931	37.1 mm (1.5 in)
1932	47.9 mm (1.9 in)
1933	29.5 mm (1.2 in)
1934	19.8 mm (0.8 in)
1935	26.5 mm (1.0 in)
1936	36.1 mm (1.4 in)
1937	73.5 mm (2.9 in)
1938	22.2 mm (0.9 in)
1939	27.6 mm (1.1 in)
1940	24.1 mm (0.9 in)
1941	33.1 mm (1.3 in)
1942	26.1 mm (1.0 in)
1943	39.7 mm (1.6 in)
1944	48.0 mm (1.9 in)
1945	52.3 mm (2.1 in)
1946	84.7 mm (3.3 in)
1947	24.0 mm (0.9 in)
1948	42.3 mm (1.7 in)
1949	46.0 mm (1.8 in)
1950	39.4 mm (1.6 in)
1951	37.3 mm (1.5 in)
1952	33.8 mm (1.3 in)
1953	29.6 mm (1.2 in)
1954	29.1 mm (1.1 in)
1955	41.1 mm (1.6 in)
1956	35.0 mm (1.4 in)
1957	61.9 mm (2.4 in)
1958	36.3 mm (1.4 in)
1959	24.4 mm (1.0 in)
1960	18.7 mm (0.7 in)
1961	56.9 mm (2.2 in)
1962	26.3 mm (1.0 in)
1963	77.4 mm (3.0 in)
1964	20.1 mm (0.8 in)
1965	37.8 mm (1.5 in)
1966	84.3 mm (3.3 in)
1967	53.5 mm (2.1 in)
1968	33.2 mm (1.3 in)
1969	36.7 mm (1.4 in)
1970	33.8 mm (1.3 in)
1971	39.8 mm (1.6 in)
1972	43.4 mm (1.7 in)
1973	54.1 mm (2.1 in)
1974	33.5 mm (1.3 in)
1975	24.7 mm (1.0 in)
1976	33.5 mm (1.3 in)
1977	38.1 mm (1.5 in)
1978	26.3 mm (1.0 in)
1979	38.3 mm (1.5 in)
1980	50.1 mm (2.0 in)
1981	27.7 mm (1.1 in)
1982	65.5 mm (2.6 in)
1983	16.8 mm (0.7 in)
1984	46.4 mm (1.8 in)
1985	24.0 mm (0.9 in)
1986	27.3 mm (1.1 in)
1987	43.6 mm (1.7 in)
1988	45.9 mm (1.8 in)
1989	37.1 mm (1.5 in)
1990	30.1 mm (1.2 in)
1991	69.2 mm (2.7 in)
1992	16.8 mm (0.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Baku, 1881 to 1992. The record is 150 days in 1889, marked on the chart; the median year is 62 days.

Longest dry spell (CDD) at Baku by year
Year	Longest dry spell (CDD)
1881	59 days
1882	110 days
1883	70 days
1884	81 days
1885	58 days
1886	57 days
1887	56 days
1888	42 days
1889	150 days
1890	56 days
1891	72 days
1892	49 days
1893	111 days
1894	93 days
1895	43 days
1896	30 days
1897	84 days
1898	67 days
1899	146 days
1900	62 days
1901	73 days
1902	79 days
1903	56 days
1904	76 days
1905	83 days
1906	34 days
1907	139 days
1908	112 days
1909	41 days
1910	125 days
1911	80 days
1912	44 days
1913	142 days
1914	42 days
1915	84 days
1916	68 days
1917	81 days
1918	22 days
1919	33 days
1920	20 days
1921	31 days
1922	74 days
1923	48 days
1924	63 days
1925	105 days
1926	46 days
1927	44 days
1928	71 days
1929	62 days
1930	68 days
1931	59 days
1932	60 days
1933	52 days
1934	51 days
1935	72 days
1936	71 days
1937	62 days
1938	68 days
1939	63 days
1940	45 days
1941	67 days
1942	109 days
1943	58 days
1944	69 days
1945	69 days
1946	38 days
1947	52 days
1948	78 days
1949	66 days
1950	52 days
1951	74 days
1952	138 days
1953	53 days
1954	59 days
1955	48 days
1956	81 days
1957	94 days
1958	53 days
1959	86 days
1960	44 days
1961	42 days
1962	54 days
1963	24 days
1964	59 days
1965	28 days
1966	58 days
1967	39 days
1968	60 days
1969	66 days
1970	81 days
1971	93 days
1972	30 days
1973	46 days
1974	34 days
1975	65 days
1976	67 days
1977	35 days
1978	92 days
1979	108 days
1980	51 days
1981	43 days
1982	37 days
1983	86 days
1984	96 days
1985	53 days
1986	56 days
1987	69 days
1988	28 days
1989	118 days
1990	106 days
1991	85 days
1992	22 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

104 years, 1882 to 1991

A day with at least 23.3 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 86.0 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Baku: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	23.3 mm (0.9 in)
5 years	34.3 mm (1.4 in)
10 years	43.5 mm (1.7 in)
25 years	57.7 mm (2.3 in)
50 years	70.7 mm (2.8 in)
100 years	86.0 mm (3.4 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1882 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: 85.0 mm (3.3 in) in 1899; 78.0 mm (3.1 in) in 1894; 73.3 mm (2.9 in) in 1966.

Download the Data

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

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a