Biskra Weather Records (AGE00147718)

Record envelope, standing records and threshold days for Biskra (AGE00147718), Algeria, with 146 years of record.

Key Facts for Biskra

Biskra (AGE00147718) is a weather station in Algeria at 34.85 latitude and 5.72 longitude, 125 m (410 ft) above sea level.
The station reports from 1880 to 2025, 146 years of record.
1,464 records set at Biskra still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Biskra tied a daily record high maximum temperature of 26.5 C (79.7 F) on 17 November 2024.

About the Station

Location: Algeria, 34.85 latitude, 5.72 longitude.
Elevation: 125 m (410 ft).
Period of record: 1880 to 2025, 146 years.
Eligible elements: tmax, tmin, 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 Biskra. 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 Biskra, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	29.0 C (84.2 F)	-3.0 C (26.6 F)	n/a	n/a
Feb	31.0 C (87.8 F)	-0.5 C (31.1 F)	n/a	n/a
Mar	34.8 C (94.6 F)	1.3 C (34.3 F)	n/a	n/a
Apr	42.0 C (107.6 F)	3.0 C (37.4 F)	n/a	n/a
May	45.3 C (113.5 F)	5.0 C (41.0 F)	n/a	n/a
Jun	47.2 C (117.0 F)	12.0 C (53.6 F)	n/a	n/a
Jul	51.0 C (123.8 F)	16.1 C (61.0 F)	n/a	n/a
Aug	49.0 C (120.2 F)	15.0 C (59.0 F)	n/a	n/a
Sep	46.0 C (114.8 F)	11.0 C (51.8 F)	n/a	n/a
Oct	40.5 C (104.9 F)	4.2 C (39.6 F)	n/a	n/a
Nov	35.3 C (95.5 F)	1.0 C (33.8 F)	n/a	n/a
Dec	27.5 C (81.5 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Biskra still stand. 1883 holds the most, with 58.

Standing records at Biskra by the year they were set
Year set	Standing records
1880	33
1881	40
1882	27
1883	58
1885	20
1886	12
1887	20
1888	13
1889	23
1890	9
1891	12
1892	31
1893	5
1897	12
1901	1
1902	15
1903	11
1904	7
1905	12
1906	3
1907	11
1908	4
1909	17
1910	16
1911	15
1912	18
1913	9
1914	12
1915	13
1916	12
1917	7
1919	18
1920	11
1921	9
1922	8
1923	14
1924	13
1925	13
1926	14
1927	11
1928	7
1929	4
1930	14
1931	20
1932	8
1933	18
1934	14
1935	17
1936	8
1937	17
1938	9
1957	5
1958	4
1959	7
1960	3
1965	1
1966	7
1967	10
1973	14
1974	14
1975	9
1976	10
1977	5
1978	8
1979	22
1980	8
1981	23
1982	11
1983	12
1984	5
1985	15
1986	4
1987	25
1988	14
1989	14
1990	15
1991	15
1992	4
1993	10
1994	14
1995	11
1996	12
1997	8
1998	6
1999	25
2000	5
2001	18
2002	9
2003	17
2004	8
2005	24
2006	29
2007	22
2008	15
2009	6
2010	11
2011	5
2012	20
2013	17
2014	19
2015	9
2016	22
2017	5
2018	18
2019	5
2020	2
2021	17
2022	28
2023	10
2024	8

All-Time Record Progression

2 new records

2 all-time records were set at Biskra between 2 January 1934 and 4 July 1993. Each dot is a new record.

When Biskra set new all-time records
Date	Kind	Detail
1934-01-02	Record low maximum temperature	Record low maximum temperature 7.0 C (44.6 F)
1993-07-04	Record high minimum temperature	Record high minimum temperature 37.5 C (99.5 F)

Wettest Day of Each Month

May: 221.3 mm (8.7 in)

The wettest day on record for each calendar month at Biskra. The most was 221.3 mm (8.7 in) on 29 May 1910.

Record daily precipitation for each month at Biskra
Month	Record daily precipitation (mm)	Date
Jan	55.1 mm (2.2 in)	3 January 2013
Feb	76.8 mm (3.0 in)	20 February 1932
Mar	71.9 mm (2.8 in)	15 March 1890
Apr	113.0 mm (4.4 in)	25 April 1988
May	221.3 mm (8.7 in)	29 May 1910
Jun	34.5 mm (1.4 in)	1 June 1920
Jul	53.1 mm (2.1 in)	9 July 1994
Aug	17.4 mm (0.7 in)	31 August 1885
Sep	53.1 mm (2.1 in)	9 September 1994
Oct	80.0 mm (3.1 in)	27 October 2012
Nov	87.1 mm (3.4 in)	7 November 1992
Dec	81.0 mm (3.2 in)	13 December 1993

Period of Record Coverage

1880 to 2025

114 years of record at Biskra, 1880 to 2025. 79 years have data for under 90 percent of days and are left out of rankings: 1880, 1881, 1891, 1892, 1893, 1897, 1898, 1899 and others.

Days with data per year at Biskra
Year	Days with data	Share of year	Complete
1880	301	82%	No
1881	325	89%	No
1882	358	98%	Yes
1883	346	95%	Yes
1885	359	98%	Yes
1886	344	94%	Yes
1887	353	97%	Yes
1888	360	98%	Yes
1889	363	99%	Yes
1890	348	95%	Yes
1891	135	37%	No
1892	299	82%	No
1893	77	21%	No
1897	248	68%	No
1898	87	24%	No
1899	16	4%	No
1901	82	22%	No
1902	340	93%	Yes
1903	325	89%	No
1904	309	84%	No
1905	272	75%	No
1906	209	57%	No
1907	209	57%	No
1908	230	63%	No
1909	225	62%	No
1910	335	92%	Yes
1911	340	93%	Yes
1912	345	94%	Yes
1913	340	93%	Yes
1914	354	97%	Yes
1915	347	95%	Yes
1916	335	92%	Yes
1917	224	61%	No
1919	345	95%	Yes
1920	362	99%	Yes
1921	335	92%	Yes
1922	364	100%	Yes
1923	362	99%	Yes
1924	359	98%	Yes
1925	339	93%	Yes
1926	332	91%	Yes
1927	319	87%	No
1928	322	88%	No
1929	339	93%	Yes
1930	324	89%	No
1931	337	92%	Yes
1932	337	92%	Yes
1933	344	94%	Yes
1934	318	87%	No
1935	304	83%	No
1936	204	56%	No
1937	246	67%	No
1938	341	93%	Yes
1957	158	43%	No
1958	290	79%	No
1959	133	36%	No
1960	64	17%	No
1961	1	0%	No
1965	44	12%	No
1966	88	24%	No
1967	270	74%	No
1973	290	79%	No
1974	305	84%	No
1975	280	77%	No
1976	291	80%	No
1977	225	62%	No
1978	275	75%	No
1979	282	77%	No
1980	269	73%	No
1981	302	83%	No
1982	291	80%	No
1983	313	86%	No
1984	308	84%	No
1985	316	87%	No
1986	342	94%	Yes
1987	333	91%	Yes
1988	335	92%	Yes
1989	307	84%	No
1990	296	81%	No
1991	327	90%	No
1992	342	93%	Yes
1993	328	90%	No
1994	323	88%	No
1995	334	92%	Yes
1996	315	86%	No
1997	333	91%	Yes
1998	325	89%	No
1999	310	85%	No
2000	287	78%	No
2001	258	71%	No
2002	295	81%	No
2003	297	81%	No
2004	297	81%	No
2005	306	84%	No
2006	300	82%	No
2007	324	89%	No
2008	307	84%	No
2009	297	81%	No
2010	313	86%	No
2011	302	83%	No
2012	293	80%	No
2013	294	81%	No
2014	297	81%	No
2015	280	77%	No
2016	245	67%	No
2017	6	2%	No
2018	30	8%	No
2019	4	1%	No
2020	3	1%	No
2021	9	2%	No
2022	150	41%	No
2023	93	25%	No
2024	159	43%	No
2025	20	5%	No

Latest Records

Latest records at Biskra
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 November 2024	Biskra, DZ	daily high max (Tie)	26.5 C (79.7 F)	tie	29 years	4 of 100 (Routine)
15 November 2024	Biskra, DZ	daily high max	28.5 C (83.3 F)	0.5 C (0.9 F)	98 years	40 of 100 (Notable)
20 September 2024	Biskra, DZ	daily rain	9.9 mm (0.39 in)	3.9 mm (0.15 in)	105 years	20 of 100 (Routine)
16 August 2024	Biskra, DZ	daily rain	0.5 mm (0.02 in)	0.5 mm (0.02 in)	143 years	20 of 100 (Routine)
9 July 2024	Biskra, DZ	daily high min	34.2 C (93.6 F)	1.2 C (2.2 F)	44 years	27 of 100 (Routine)
19 March 2024	Biskra, DZ	daily high max	30.4 C (86.7 F)	1.4 C (2.5 F)	126 years	43 of 100 (Notable)
16 March 2024	Biskra, DZ	daily high max	28.1 C (82.6 F)	0.1 C (0.2 F)	119 years	40 of 100 (Notable)
10 February 2024	Biskra, DZ	daily rain	7.1 mm (0.28 in)	4.1 mm (0.16 in)	13 years	19 of 100 (Routine)
27 January 2024	Biskra, DZ	daily high max	27.3 C (81.1 F)	5.3 C (9.5 F)	118 years	59 of 100 (Notable)
26 January 2024	Biskra, DZ	monthly high max	29.0 C (84.2 F)	2.8 C (5.0 F)	0 years	30 of 100 (Routine)
25 January 2024	Biskra, DZ	monthly high max	26.2 C (79.2 F)	0.2 C (0.4 F)	21 years	26 of 100 (Routine)
20 January 2024	Biskra, DZ	daily high min	13.5 C (56.3 F)	1.1 C (2.0 F)	5 years	15 of 100 (Routine)
18 January 2024	Biskra, DZ	daily high max (Tie)	24.2 C (75.6 F)	tie	142 years	10 of 100 (Routine)
11 December 2023	Biskra, DZ	daily high max	24.1 C (75.4 F)	0.1 C (0.2 F)	46 years	24 of 100 (Routine)
29 October 2023	Biskra, DZ	daily high min	23.1 C (73.6 F)	1.1 C (2.0 F)	141 years	43 of 100 (Notable)
28 October 2023	Biskra, DZ	daily high min	22.2 C (72.0 F)	2.2 C (4.0 F)	98 years	45 of 100 (Notable)
27 August 2023	Biskra, DZ	daily high max	44.8 C (112.6 F)	0.8 C (1.4 F)	137 years	42 of 100 (Notable)
30 July 2023	Biskra, DZ	daily high min	35.7 C (96.3 F)	4.7 C (8.5 F)	85 years	51 of 100 (Notable)
20 July 2023	Biskra, DZ	daily high min	33.1 C (91.6 F)	1.1 C (2.0 F)	112 years	43 of 100 (Notable)
11 July 2023	Biskra, DZ	daily high min	34.4 C (93.9 F)	1.4 C (2.5 F)	10 years	18 of 100 (Routine)

Climate Trend

48 complete years, 1882 to 2015

One stripe for each of 48 complete years at Biskra, 1882 to 2015. Blue stripes are years cooler than the station's own mean of 21.7 C (71.1 F); red stripes are warmer. The coolest year was 1883, at 20.1 C (68.2 F), and the warmest was 2014, at 23.4 C (74.1 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Biskra as warming stripes, 1882 to 2015
Year	Annual mean temperature	Difference from the station mean
1882	20.5 C	-1.22 C
1883	20.1 C	-1.64 C
1885	20.6 C	-1.09 C
1886	20.8 C	-0.95 C
1887	20.4 C	-1.30 C
1888	21.4 C	-0.31 C
1889	20.6 C	-1.10 C
1890	20.2 C	-1.51 C
1902	21.5 C	-0.20 C
1903	22.1 C	+0.35 C
1912	21.4 C	-0.38 C
1913	21.7 C	-0.07 C
1914	21.2 C	-0.52 C
1915	21.2 C	-0.53 C
1919	21.8 C	+0.04 C
1920	22.3 C	+0.57 C
1921	21.4 C	-0.34 C
1922	21.8 C	+0.05 C
1923	20.9 C	-0.81 C
1924	22.2 C	+0.49 C
1925	21.0 C	-0.71 C
1926	22.3 C	+0.60 C
1927	22.6 C	+0.87 C
1928	22.1 C	+0.39 C
1929	21.3 C	-0.42 C
1930	22.2 C	+0.50 C
1931	22.8 C	+1.09 C
1932	21.5 C	-0.23 C
1933	21.4 C	-0.33 C
1934	21.4 C	-0.37 C
1938	21.7 C	-0.08 C
1974	21.3 C	-0.47 C
1981	22.5 C	+0.76 C
1983	22.2 C	+0.50 C
1984	21.6 C	-0.10 C
1985	22.3 C	+0.57 C
1986	22.2 C	+0.43 C
1987	22.8 C	+1.11 C
1988	23.0 C	+1.26 C
1991	21.8 C	+0.04 C
1992	21.8 C	+0.05 C
1993	22.4 C	+0.66 C
1995	22.3 C	+0.54 C
1996	21.6 C	-0.14 C
1997	22.7 C	+0.93 C
1998	22.2 C	+0.45 C
2014	23.4 C	+1.66 C
2015	22.8 C	+1.03 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1882 to 2015. In Fahrenheit: 0.2 F (0.2 to 0.3) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Biskra
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.2) per decade	0.2 F (0.2 to 0.3) per decade	1882 to 2015	48	Rise
Mean daily maximum	0.1 C (0.1 to 0.1) per decade	0.2 F (0.1 to 0.3) per decade	1882 to 2015	48	Rise
Mean daily minimum	0.2 C (0.1 to 0.2) per decade	0.3 F (0.2 to 0.4) per decade	1882 to 2015	48	Rise

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

1880 to 2025

Yearly extremes at Biskra: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	51.0 C (123.8 F)	1910	46.0 C (114.8 F)	114
Coldest night (TNn)	-5.0 C (23.0 F)	1914	2.0 C (35.6 F)	113
Wettest day (Rx1day)	221.3 mm (8.7 in)	1910	23.1 mm (0.9 in)	99
Wettest five days (Rx5day)	410.7 mm (16.2 in)	1910	30.9 mm (1.2 in)	96
Longest dry spell (CDD)	176 days	1880	42 days	99

Hottest day (TXx)

The hottest day of the year at Biskra, 1880 to 2025. The record is 51.0 C (123.8 F) in 1910, marked on the chart; the median year is 46.0 C (114.8 F).

Hottest day (TXx) at Biskra by year
Year	Hottest day (TXx)
1880	46.2 C (115.2 F)
1881	46.6 C (115.9 F)
1882	41.4 C (106.5 F)
1883	44.2 C (111.6 F)
1884	n/a
1885	46.0 C (114.8 F)
1886	45.0 C (113.0 F)
1887	43.0 C (109.4 F)
1888	46.0 C (114.8 F)
1889	47.5 C (117.5 F)
1890	47.0 C (116.6 F)
1891	35.2 C (95.4 F)
1892	48.0 C (118.4 F)
1893	37.0 C (98.6 F)
1897	46.0 C (114.8 F)
1898	37.0 C (98.6 F)
1899	22.0 C (71.6 F)
1901	30.0 C (86.0 F)
1902	46.0 C (114.8 F)
1903	46.0 C (114.8 F)
1904	43.0 C (109.4 F)
1905	45.0 C (113.0 F)
1906	42.0 C (107.6 F)
1907	36.0 C (96.8 F)
1908	38.0 C (100.4 F)
1909	48.0 C (118.4 F)
1910	51.0 C (123.8 F)
1911	46.0 C (114.8 F)
1912	48.0 C (118.4 F)
1913	45.0 C (113.0 F)
1914	44.0 C (111.2 F)
1915	44.0 C (111.2 F)
1916	48.0 C (118.4 F)
1917	44.0 C (111.2 F)
1918	n/a
1919	49.0 C (120.2 F)
1920	45.0 C (113.0 F)
1921	45.0 C (113.0 F)
1922	45.0 C (113.0 F)
1923	44.0 C (111.2 F)
1924	47.0 C (116.6 F)
1925	46.0 C (114.8 F)
1926	48.0 C (118.4 F)
1927	46.0 C (114.8 F)
1928	47.0 C (116.6 F)
1929	45.0 C (113.0 F)
1930	47.0 C (116.6 F)
1931	49.0 C (120.2 F)
1932	45.0 C (113.0 F)
1933	49.0 C (120.2 F)
1934	46.0 C (114.8 F)
1935	47.0 C (116.6 F)
1936	46.0 C (114.8 F)
1937	49.0 C (120.2 F)
1938	48.0 C (118.4 F)
1957	43.9 C (111.0 F)
1958	47.2 C (117.0 F)
1959	42.8 C (109.0 F)
1960	41.1 C (106.0 F)
1961	36.1 C (97.0 F)
1965	33.9 C (93.0 F)
1966	47.2 C (117.0 F)
1967	45.0 C (113.0 F)
1973	47.0 C (116.6 F)
1974	47.0 C (116.6 F)
1975	46.0 C (114.8 F)
1976	43.0 C (109.4 F)
1977	46.0 C (114.8 F)
1978	46.0 C (114.8 F)
1979	47.0 C (116.6 F)
1980	45.0 C (113.0 F)
1981	46.0 C (114.8 F)
1982	45.4 C (113.7 F)
1983	44.3 C (111.7 F)
1984	45.5 C (113.9 F)
1985	45.5 C (113.9 F)
1986	44.4 C (111.9 F)
1987	47.0 C (116.6 F)
1988	46.7 C (116.1 F)
1989	46.1 C (115.0 F)
1990	43.6 C (110.5 F)
1991	46.1 C (115.0 F)
1992	43.1 C (109.6 F)
1993	47.3 C (117.1 F)
1994	46.0 C (114.8 F)
1995	44.5 C (112.1 F)
1996	47.5 C (117.5 F)
1997	47.0 C (116.6 F)
1998	45.2 C (113.4 F)
1999	47.2 C (117.0 F)
2000	47.0 C (116.6 F)
2001	46.5 C (115.7 F)
2002	46.4 C (115.5 F)
2003	47.2 C (117.0 F)
2004	45.6 C (114.1 F)
2005	47.2 C (117.0 F)
2006	46.8 C (116.2 F)
2007	46.6 C (115.9 F)
2008	48.4 C (119.1 F)
2009	46.0 C (114.8 F)
2010	47.5 C (117.5 F)
2011	47.4 C (117.3 F)
2012	48.0 C (118.4 F)
2013	43.3 C (109.9 F)
2014	46.1 C (115.0 F)
2015	46.0 C (114.8 F)
2016	46.5 C (115.7 F)
2017	37.0 C (98.6 F)
2018	47.3 C (117.1 F)
2019	25.8 C (78.4 F)
2020	41.0 C (105.8 F)
2021	46.3 C (115.3 F)
2022	48.7 C (119.7 F)
2023	47.3 C (117.1 F)
2024	46.4 C (115.5 F)
2025	42.0 C (107.6 F)

Coldest night (TNn)

The coldest night of the year at Biskra, 1880 to 2025. The record is -5.0 C (23.0 F) in 1914, marked on the chart; the median year is 2.0 C (35.6 F).

Coldest night (TNn) at Biskra by year
Year	Coldest night (TNn)
1880	0.0 C (32.0 F)
1881	3.0 C (37.4 F)
1882	2.0 C (35.6 F)
1883	-1.4 C (29.5 F)
1884	n/a
1885	0.6 C (33.1 F)
1886	0.0 C (32.0 F)
1887	0.0 C (32.0 F)
1888	0.0 C (32.0 F)
1889	0.6 C (33.1 F)
1890	2.4 C (36.3 F)
1891	-2.0 C (28.4 F)
1892	6.0 C (42.8 F)
1893	6.0 C (42.8 F)
1897	6.0 C (42.8 F)
1898	3.0 C (37.4 F)
1899	3.0 C (37.4 F)
1901	3.0 C (37.4 F)
1902	3.0 C (37.4 F)
1903	8.0 C (46.4 F)
1904	6.0 C (42.8 F)
1905	8.0 C (46.4 F)
1906	4.0 C (39.2 F)
1907	8.0 C (46.4 F)
1908	9.0 C (48.2 F)
1909	2.0 C (35.6 F)
1910	5.0 C (41.0 F)
1911	5.0 C (41.0 F)
1912	1.0 C (33.8 F)
1913	6.0 C (42.8 F)
1914	-5.0 C (23.0 F)
1915	2.0 C (35.6 F)
1916	1.0 C (33.8 F)
1917	1.0 C (33.8 F)
1918	n/a
1919	2.0 C (35.6 F)
1920	0.0 C (32.0 F)
1921	3.0 C (37.4 F)
1922	1.0 C (33.8 F)
1923	2.0 C (35.6 F)
1924	2.0 C (35.6 F)
1925	2.0 C (35.6 F)
1926	0.0 C (32.0 F)
1927	-1.0 C (30.2 F)
1928	1.0 C (33.8 F)
1929	2.0 C (35.6 F)
1930	4.0 C (39.2 F)
1931	-1.0 C (30.2 F)
1932	0.0 C (32.0 F)
1933	2.0 C (35.6 F)
1934	2.0 C (35.6 F)
1935	-3.0 C (26.6 F)
1936	0.0 C (32.0 F)
1937	2.0 C (35.6 F)
1938	1.0 C (33.8 F)
1957	2.8 C (37.0 F)
1958	2.8 C (37.0 F)
1959	2.2 C (36.0 F)
1960	6.1 C (43.0 F)
1961	n/a
1965	5.0 C (41.0 F)
1966	2.8 C (37.0 F)
1967	0.0 C (32.0 F)
1973	0.0 C (32.0 F)
1974	2.0 C (35.6 F)
1975	3.0 C (37.4 F)
1976	0.0 C (32.0 F)
1977	4.0 C (39.2 F)
1978	0.0 C (32.0 F)
1979	4.0 C (39.2 F)
1980	-1.0 C (30.2 F)
1981	0.0 C (32.0 F)
1982	1.2 C (34.2 F)
1983	0.0 C (32.0 F)
1984	1.4 C (34.5 F)
1985	2.0 C (35.6 F)
1986	2.3 C (36.1 F)
1987	-1.2 C (29.8 F)
1988	3.1 C (37.6 F)
1989	1.0 C (33.8 F)
1990	2.8 C (37.0 F)
1991	2.5 C (36.5 F)
1992	1.5 C (34.7 F)
1993	3.4 C (38.1 F)
1994	2.6 C (36.7 F)
1995	0.9 C (33.6 F)
1996	2.1 C (35.8 F)
1997	3.1 C (37.6 F)
1998	2.4 C (36.3 F)
1999	-0.5 C (31.1 F)
2000	1.7 C (35.1 F)
2001	2.5 C (36.5 F)
2002	0.0 C (32.0 F)
2003	0.2 C (32.4 F)
2004	2.5 C (36.5 F)
2005	0.8 C (33.4 F)
2006	-1.5 C (29.3 F)
2007	-0.8 C (30.6 F)
2008	1.3 C (34.3 F)
2009	1.0 C (33.8 F)
2010	2.0 C (35.6 F)
2011	2.0 C (35.6 F)
2012	1.5 C (34.7 F)
2013	2.4 C (36.3 F)
2014	2.0 C (35.6 F)
2015	2.0 C (35.6 F)
2016	4.0 C (39.2 F)
2017	1.6 C (34.9 F)
2018	1.0 C (33.8 F)
2019	1.3 C (34.3 F)
2020	2.5 C (36.5 F)
2021	0.8 C (33.4 F)
2022	1.0 C (33.8 F)
2023	3.0 C (37.4 F)
2024	4.7 C (40.5 F)
2025	4.7 C (40.5 F)

Wettest day (Rx1day)

The wettest day of the year at Biskra, 1880 to 2025. The record is 221.3 mm (8.7 in) in 1910, marked on the chart; the median year is 23.1 mm (0.9 in).

Wettest day (Rx1day) at Biskra by year
Year	Wettest day (Rx1day)
1880	21.7 mm (0.9 in)
1881	40.0 mm (1.6 in)
1882	13.8 mm (0.5 in)
1883	15.0 mm (0.6 in)
1884	29.0 mm (1.1 in)
1885	20.8 mm (0.8 in)
1886	24.2 mm (1.0 in)
1887	18.4 mm (0.7 in)
1888	31.2 mm (1.2 in)
1889	31.9 mm (1.3 in)
1890	71.9 mm (2.8 in)
1891	14.0 mm (0.6 in)
1892	24.0 mm (0.9 in)
1893	6.0 mm (0.24 in)
1897	28.4 mm (1.1 in)
1898	14.2 mm (0.6 in)
1899	0.0 mm (0.00 in)
1901	19.2 mm (0.8 in)
1902	34.0 mm (1.3 in)
1903	24.0 mm (0.9 in)
1904	17.2 mm (0.7 in)
1905	27.0 mm (1.1 in)
1906	46.0 mm (1.8 in)
1907	21.2 mm (0.8 in)
1908	32.0 mm (1.3 in)
1909	15.4 mm (0.6 in)
1910	221.3 mm (8.7 in)
1911	22.4 mm (0.9 in)
1912	19.0 mm (0.7 in)
1913	17.5 mm (0.7 in)
1914	15.0 mm (0.6 in)
1915	35.0 mm (1.4 in)
1916	37.0 mm (1.5 in)
1917	20.0 mm (0.8 in)
1918	0.0 mm (0.00 in)
1919	27.0 mm (1.1 in)
1920	34.5 mm (1.4 in)
1921	21.0 mm (0.8 in)
1922	21.3 mm (0.8 in)
1923	13.5 mm (0.5 in)
1924	13.6 mm (0.5 in)
1925	26.4 mm (1.0 in)
1926	11.4 mm (0.4 in)
1927	24.6 mm (1.0 in)
1928	28.5 mm (1.1 in)
1929	17.5 mm (0.7 in)
1930	21.1 mm (0.8 in)
1931	45.0 mm (1.8 in)
1932	76.8 mm (3.0 in)
1933	45.0 mm (1.8 in)
1934	37.5 mm (1.5 in)
1935	25.8 mm (1.0 in)
1936	8.5 mm (0.33 in)
1937	22.4 mm (0.9 in)
1938	34.1 mm (1.3 in)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1965	n/a
1966	n/a
1967	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	30.0 mm (1.2 in)
1983	14.0 mm (0.6 in)
1984	15.0 mm (0.6 in)
1985	19.1 mm (0.8 in)
1986	33.0 mm (1.3 in)
1987	17.0 mm (0.7 in)
1988	113.0 mm (4.4 in)
1989	10.9 mm (0.4 in)
1990	16.0 mm (0.6 in)
1991	30.0 mm (1.2 in)
1992	87.1 mm (3.4 in)
1993	81.0 mm (3.2 in)
1994	53.1 mm (2.1 in)
1995	17.0 mm (0.7 in)
1996	26.9 mm (1.1 in)
1997	40.9 mm (1.6 in)
1998	39.1 mm (1.5 in)
1999	23.1 mm (0.9 in)
2000	21.1 mm (0.8 in)
2001	24.9 mm (1.0 in)
2002	10.9 mm (0.4 in)
2003	53.1 mm (2.1 in)
2004	55.9 mm (2.2 in)
2005	24.9 mm (1.0 in)
2006	29.0 mm (1.1 in)
2007	11.9 mm (0.5 in)
2008	20.1 mm (0.8 in)
2009	19.1 mm (0.8 in)
2010	39.9 mm (1.6 in)
2011	51.1 mm (2.0 in)
2012	80.0 mm (3.1 in)
2013	55.1 mm (2.2 in)
2014	23.9 mm (0.9 in)
2015	23.1 mm (0.9 in)
2016	25.9 mm (1.0 in)
2017	13.0 mm (0.5 in)
2018	20.1 mm (0.8 in)
2019	15.0 mm (0.6 in)
2020	15.0 mm (0.6 in)
2021	8.9 mm (0.35 in)
2022	10.9 mm (0.4 in)
2023	8.9 mm (0.35 in)
2024	10.9 mm (0.4 in)
2025	21.1 mm (0.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Biskra, 1880 to 2025. The record is 410.7 mm (16.2 in) in 1910, marked on the chart; the median year is 30.9 mm (1.2 in).

Wettest five days (Rx5day) at Biskra by year
Year	Wettest five days (Rx5day)
1880	33.3 mm (1.3 in)
1881	40.0 mm (1.6 in)
1882	23.6 mm (0.9 in)
1883	21.8 mm (0.9 in)
1884	39.2 mm (1.5 in)
1885	38.9 mm (1.5 in)
1886	24.2 mm (1.0 in)
1887	21.8 mm (0.9 in)
1888	48.2 mm (1.9 in)
1889	31.9 mm (1.3 in)
1890	74.3 mm (2.9 in)
1891	26.0 mm (1.0 in)
1892	43.0 mm (1.7 in)
1893	6.0 mm (0.24 in)
1897	4.6 mm (0.18 in)
1898	n/a
1899	0.0 mm (0.00 in)
1901	36.4 mm (1.4 in)
1902	34.0 mm (1.3 in)
1903	26.0 mm (1.0 in)
1904	30.4 mm (1.2 in)
1905	66.4 mm (2.6 in)
1906	46.0 mm (1.8 in)
1907	21.2 mm (0.8 in)
1908	49.8 mm (2.0 in)
1909	24.0 mm (0.9 in)
1910	410.7 mm (16.2 in)
1911	33.4 mm (1.3 in)
1912	28.5 mm (1.1 in)
1913	20.0 mm (0.8 in)
1914	19.0 mm (0.7 in)
1915	39.0 mm (1.5 in)
1916	45.4 mm (1.8 in)
1917	40.0 mm (1.6 in)
1918	n/a
1919	33.4 mm (1.3 in)
1920	41.8 mm (1.6 in)
1921	33.7 mm (1.3 in)
1922	22.1 mm (0.9 in)
1923	23.0 mm (0.9 in)
1924	18.1 mm (0.7 in)
1925	26.4 mm (1.0 in)
1926	17.5 mm (0.7 in)
1927	43.3 mm (1.7 in)
1928	13.3 mm (0.5 in)
1929	28.8 mm (1.1 in)
1930	21.2 mm (0.8 in)
1931	71.0 mm (2.8 in)
1932	103.9 mm (4.1 in)
1933	50.6 mm (2.0 in)
1934	58.6 mm (2.3 in)
1935	31.1 mm (1.2 in)
1936	8.5 mm (0.33 in)
1937	11.3 mm (0.4 in)
1938	57.0 mm (2.2 in)
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1965	n/a
1966	n/a
1967	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	23.9 mm (0.9 in)
1983	3.0 mm (0.12 in)
1984	7.6 mm (0.30 in)
1985	23.8 mm (0.9 in)
1986	33.8 mm (1.3 in)
1987	18.0 mm (0.7 in)
1988	119.4 mm (4.7 in)
1989	10.9 mm (0.4 in)
1990	29.9 mm (1.2 in)
1991	30.0 mm (1.2 in)
1992	89.4 mm (3.5 in)
1993	81.5 mm (3.2 in)
1994	53.1 mm (2.1 in)
1995	31.0 mm (1.2 in)
1996	37.1 mm (1.5 in)
1997	69.9 mm (2.8 in)
1998	47.2 mm (1.9 in)
1999	37.0 mm (1.5 in)
2000	3.5 mm (0.14 in)
2001	n/a
2002	12.2 mm (0.5 in)
2003	57.2 mm (2.3 in)
2004	95.0 mm (3.7 in)
2005	24.9 mm (1.0 in)
2006	48.1 mm (1.9 in)
2007	15.2 mm (0.6 in)
2008	28.2 mm (1.1 in)
2009	27.0 mm (1.1 in)
2010	44.5 mm (1.8 in)
2011	78.0 mm (3.1 in)
2012	84.1 mm (3.3 in)
2013	55.9 mm (2.2 in)
2014	23.9 mm (0.9 in)
2015	34.3 mm (1.4 in)
2016	26.9 mm (1.1 in)
2017	13.6 mm (0.5 in)
2018	47.3 mm (1.9 in)
2019	30.8 mm (1.2 in)
2020	1.6 mm (0.06 in)
2021	16.8 mm (0.7 in)
2022	14.2 mm (0.6 in)
2023	12.9 mm (0.5 in)
2024	20.8 mm (0.8 in)
2025	33.0 mm (1.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Biskra, 1880 to 2025. The record is 176 days in 1880, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at Biskra by year
Year	Longest dry spell (CDD)
1880	176 days
1881	92 days
1882	89 days
1883	81 days
1884	74 days
1885	79 days
1886	68 days
1887	64 days
1888	51 days
1889	109 days
1890	93 days
1891	45 days
1892	73 days
1893	29 days
1897	17 days
1898	3 days
1899	16 days
1901	19 days
1902	48 days
1903	52 days
1904	38 days
1905	27 days
1906	41 days
1907	25 days
1908	43 days
1909	49 days
1910	53 days
1911	51 days
1912	62 days
1913	121 days
1914	58 days
1915	76 days
1916	55 days
1917	39 days
1918	1 day
1919	39 days
1920	66 days
1921	77 days
1922	80 days
1923	113 days
1924	70 days
1925	41 days
1926	89 days
1927	45 days
1928	48 days
1929	33 days
1930	112 days
1931	28 days
1932	50 days
1933	48 days
1934	32 days
1935	32 days
1936	30 days
1937	42 days
1938	59 days
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1965	n/a
1966	n/a
1967	n/a
1973	n/a
1974	n/a
1975	n/a
1976	n/a
1977	n/a
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	10 days
1983	15 days
1984	27 days
1985	24 days
1986	36 days
1987	20 days
1988	37 days
1989	25 days
1990	23 days
1991	16 days
1992	14 days
1993	15 days
1994	14 days
1995	20 days
1996	14 days
1997	17 days
1998	15 days
1999	12 days
2000	4 days
2001	2 days
2002	18 days
2003	24 days
2004	36 days
2005	90 days
2006	77 days
2007	63 days
2008	57 days
2009	65 days
2010	48 days
2011	64 days
2012	67 days
2013	63 days
2014	63 days
2015	56 days
2016	68 days
2017	2 days
2018	4 days
2019	3 days
2020	5 days
2021	3 days
2022	74 days
2023	22 days
2024	27 days
2025	8 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

50 years, 1880 to 2015

A day with at least 25.9 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 177.8 mm (7.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Biskra: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	25.9 mm (1.0 in)
5 years	43.3 mm (1.7 in)
10 years	60.9 mm (2.4 in)
25 years	93.8 mm (3.7 in)
50 years	129.3 mm (5.1 in)
100 years	177.8 mm (7.0 in)	Longer than the 50 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, 50 years of values from 1880 to 2015.

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: 221.3 mm (8.7 in) in 1910; 113.0 mm (4.4 in) in 1988; 80.0 mm (3.1 in) in 2012.

Download the Data

Data for Biskra standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Biskra 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).