Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Ouesso. 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 Ouesso, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
41.3 C (106.3 F)
10.0 C (50.0 F)
n/a
n/a
Feb
39.3 C (102.7 F)
11.9 C (53.4 F)
n/a
n/a
Mar
41.0 C (105.8 F)
14.4 C (57.9 F)
n/a
n/a
Apr
43.5 C (110.3 F)
16.0 C (60.8 F)
n/a
n/a
May
39.0 C (102.2 F)
14.6 C (58.3 F)
n/a
n/a
Jun
41.2 C (106.2 F)
16.0 C (60.8 F)
n/a
n/a
Jul
39.0 C (102.2 F)
13.0 C (55.4 F)
n/a
21.3 C (70.3 F)
Aug
39.4 C (102.9 F)
14.3 C (57.7 F)
n/a
17.2 C (63.0 F)
Sep
39.4 C (102.9 F)
14.9 C (58.8 F)
n/a
n/a
Oct
37.7 C (99.9 F)
15.6 C (60.1 F)
n/a
n/a
Nov
39.0 C (102.2 F)
16.8 C (62.2 F)
n/a
n/a
Dec
35.6 C (96.1 F)
10.0 C (50.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ouesso still stand. 1950 holds the most, with 104.
Standing records at Ouesso by the year they were set
Year set
Standing records
1950
104
1951
18
1952
27
1953
17
1954
18
1955
15
1956
21
1957
23
1958
32
1959
6
1960
15
1961
18
1962
16
1963
21
1964
29
1965
19
1967
19
1968
30
1969
20
1970
24
1971
41
1972
32
1973
15
1974
29
1975
35
1976
26
1977
20
1978
17
1979
10
1980
18
1981
7
1982
4
1983
6
1986
2
1987
9
1988
5
1989
9
1990
3
1991
4
1992
2
1993
12
1994
6
1995
5
1996
9
1997
8
1998
10
1999
5
2000
4
2001
7
2002
1
2007
2
2008
10
2009
23
2010
35
2011
15
2012
17
2013
21
2014
41
2015
42
2016
66
2017
28
2018
60
2019
32
2020
67
2021
53
2022
26
2023
41
2024
32
All-Time Record Progression
1 new records
1 all-time records were set at Ouesso between 21 April 1998 and 21 April 1998. Each dot is a new record.
When Ouesso set new all-time records
Date
Kind
Detail
1998-04-21
Record high maximum temperature
Record high maximum temperature 43.5 C (110.3 F)
Wettest Day of Each Month
Sep: 470.9 mm (18.5 in)
The wettest day on record for each calendar month at Ouesso. The most was 470.9 mm (18.5 in) on 20 September 1982.
Record daily precipitation for each month at Ouesso
Month
Record daily precipitation (mm)
Date
Jan
74.2 mm (2.9 in)
5 January 1953
Feb
186.4 mm (7.3 in)
25 February 1957
Mar
257.0 mm (10.1 in)
27 March 1986
Apr
378.0 mm (14.9 in)
28 April 1982
May
382.0 mm (15.0 in)
15 May 1994
Jun
148.1 mm (5.8 in)
27 June 1982
Jul
106.9 mm (4.2 in)
29 July 1985
Aug
146.1 mm (5.8 in)
27 August 2011
Sep
470.9 mm (18.5 in)
20 September 1982
Oct
163.1 mm (6.4 in)
18 October 1983
Nov
169.9 mm (6.7 in)
15 November 1982
Dec
118.1 mm (4.6 in)
9 December 1982
Period of Record Coverage
1950 to 2023
Complete yearUnder 90 percent of days
69 years of record at Ouesso, 1950 to 2023. 41 years have data for under 90 percent of days and are left out of rankings: 1959, 1965, 1981, 1982, 1983, 1984, 1985, 1986 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 30 complete years at Ouesso, 1950 to 2016. Blue stripes are years cooler than the station's own mean of 25.3 C (77.5 F); red stripes are warmer. The coolest year was 1971, at 24.6 C (76.2 F), and the warmest was 2016, at 27.0 C (80.5 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Ouesso as warming stripes, 1950 to 2016
Year
Annual mean temperature
Difference from the station mean
1950
26.7 C
+1.41 C
1951
25.7 C
+0.36 C
1952
26.0 C
+0.69 C
1953
25.6 C
+0.34 C
1954
25.4 C
+0.12 C
1955
25.3 C
-0.02 C
1956
25.3 C
-0.02 C
1957
25.6 C
+0.27 C
1958
26.0 C
+0.66 C
1960
25.3 C
+0.01 C
1961
24.8 C
-0.55 C
1962
25.0 C
-0.34 C
1963
24.7 C
-0.56 C
1964
24.7 C
-0.61 C
1967
24.9 C
-0.36 C
1968
24.7 C
-0.58 C
1969
25.0 C
-0.31 C
1970
25.1 C
-0.22 C
1971
24.6 C
-0.72 C
1972
24.9 C
-0.40 C
1973
25.3 C
0.00 C
1975
24.6 C
-0.68 C
1976
24.8 C
-0.50 C
1977
25.1 C
-0.24 C
1978
25.0 C
-0.26 C
1979
25.3 C
+0.03 C
1980
25.2 C
-0.12 C
2013
25.6 C
+0.33 C
2015
26.1 C
+0.75 C
2016
27.0 C
+1.66 C
The fitted trend in annual mean temperature here over 1950 to 2016 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ouesso
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.1 to 0.4) per decade
1950 to 2016
30
Not clearly different from zero
Mean daily maximum
0.2 C (0.1 to 0.4) per decade
0.4 F (0.1 to 0.7) per decade
1950 to 2016
30
Rise
Mean daily minimum
-0.08 C (-0.20 to 0.04) per decade
-0.2 F (-0.4 to 0.1) per decade
1950 to 2016
30
Not clearly different from zero
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
1950 to 2025
Yearly extremes at Ouesso: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
43.5 C (110.3 F)
1998
35.5 C (95.9 F)
69
Coldest night (TNn)
10.0 C (50.0 F)
1971
15.2 C (59.4 F)
72
Wettest day (Rx1day)
470.9 mm (18.5 in)
1982
80.5 mm (3.2 in)
72
Wettest five days (Rx5day)
500.2 mm (19.7 in)
1982
111.0 mm (4.4 in)
64
Longest dry spell (CDD)
39 days
1960
4 days
71
Hottest day (TXx)
The hottest day of the year at Ouesso, 1950 to 2025. The record is 43.5 C (110.3 F) in 1998, marked on the chart; the median year is 35.5 C (95.9 F).
Hottest day (TXx) at Ouesso by year
Year
Hottest day (TXx)
1950
41.0 C (105.8 F)
1951
36.4 C (97.5 F)
1952
35.8 C (96.4 F)
1953
36.6 C (97.9 F)
1954
35.7 C (96.3 F)
1955
35.5 C (95.9 F)
1956
36.0 C (96.8 F)
1957
35.4 C (95.7 F)
1958
37.0 C (98.6 F)
1959
35.4 C (95.7 F)
1960
35.5 C (95.9 F)
1961
34.0 C (93.2 F)
1962
35.2 C (95.4 F)
1963
34.0 C (93.2 F)
1964
34.9 C (94.8 F)
1965
34.0 C (93.2 F)
1967
35.6 C (96.1 F)
1968
34.6 C (94.3 F)
1969
38.0 C (100.4 F)
1970
35.3 C (95.5 F)
1971
35.7 C (96.3 F)
1972
35.4 C (95.7 F)
1973
35.5 C (95.9 F)
1974
34.2 C (93.6 F)
1975
34.8 C (94.6 F)
1976
34.7 C (94.5 F)
1977
34.4 C (93.9 F)
1978
35.7 C (96.3 F)
1979
35.0 C (95.0 F)
1980
34.9 C (94.8 F)
1981
35.0 C (95.0 F)
1982
31.5 C (88.7 F)
1983
34.6 C (94.3 F)
1984
32.0 C (89.6 F)
1985
34.6 C (94.3 F)
1986
33.3 C (91.9 F)
1987
41.2 C (106.2 F)
1988
35.8 C (96.4 F)
1989
39.4 C (102.9 F)
1990
34.5 C (94.1 F)
1991
36.0 C (96.8 F)
1992
35.2 C (95.4 F)
1993
34.8 C (94.6 F)
1994
36.0 C (96.8 F)
1995
35.5 C (95.9 F)
1996
39.0 C (102.2 F)
1997
36.7 C (98.1 F)
1998
43.5 C (110.3 F)
1999
35.7 C (96.3 F)
2000
35.3 C (95.5 F)
2001
35.5 C (95.9 F)
2002
35.9 C (96.6 F)
2003
35.4 C (95.7 F)
2007
n/a
2008
36.5 C (97.7 F)
2009
39.0 C (102.2 F)
2010
39.5 C (103.1 F)
2011
35.7 C (96.3 F)
2012
39.3 C (102.7 F)
2013
37.1 C (98.8 F)
2014
41.3 C (106.3 F)
2015
37.0 C (98.6 F)
2016
39.4 C (102.9 F)
2017
37.0 C (98.6 F)
2018
37.3 C (99.1 F)
2019
34.3 C (93.7 F)
2020
34.5 C (94.1 F)
2021
35.4 C (95.7 F)
2022
36.3 C (97.3 F)
2023
36.8 C (98.2 F)
2024
n/a
2025
n/a
Coldest night (TNn)
The coldest night of the year at Ouesso, 1950 to 2025. The record is 10.0 C (50.0 F) in 1971, marked on the chart; the median year is 15.2 C (59.4 F).
Coldest night (TNn) at Ouesso by year
Year
Coldest night (TNn)
1950
17.5 C (63.5 F)
1951
17.5 C (63.5 F)
1952
18.2 C (64.8 F)
1953
15.3 C (59.5 F)
1954
16.2 C (61.2 F)
1955
18.0 C (64.4 F)
1956
15.0 C (59.0 F)
1957
12.8 C (55.0 F)
1958
15.4 C (59.7 F)
1959
17.1 C (62.8 F)
1960
16.8 C (62.2 F)
1961
14.2 C (57.6 F)
1962
13.0 C (55.4 F)
1963
16.8 C (62.2 F)
1964
13.0 C (55.4 F)
1965
16.8 C (62.2 F)
1967
13.8 C (56.8 F)
1968
13.0 C (55.4 F)
1969
13.6 C (56.5 F)
1970
13.2 C (55.8 F)
1971
10.0 C (50.0 F)
1972
15.0 C (59.0 F)
1973
16.8 C (62.2 F)
1974
13.5 C (56.3 F)
1975
13.2 C (55.8 F)
1976
15.5 C (59.9 F)
1977
12.9 C (55.2 F)
1978
12.0 C (53.6 F)
1979
15.2 C (59.4 F)
1980
14.0 C (57.2 F)
1981
13.0 C (55.4 F)
1982
14.0 C (57.2 F)
1983
12.8 C (55.0 F)
1984
16.0 C (60.8 F)
1985
18.0 C (64.4 F)
1986
18.0 C (64.4 F)
1987
18.4 C (65.1 F)
1988
17.9 C (64.2 F)
1989
11.9 C (53.4 F)
1990
17.1 C (62.8 F)
1991
15.2 C (59.4 F)
1992
16.5 C (61.7 F)
1993
13.3 C (55.9 F)
1994
16.5 C (61.7 F)
1995
16.9 C (62.4 F)
1996
17.9 C (64.2 F)
1997
14.0 C (57.2 F)
1998
15.6 C (60.1 F)
1999
15.0 C (59.0 F)
2000
17.7 C (63.9 F)
2001
15.2 C (59.4 F)
2002
14.7 C (58.5 F)
2003
20.0 C (68.0 F)
2007
16.5 C (61.7 F)
2008
14.5 C (58.1 F)
2009
17.5 C (63.5 F)
2010
16.4 C (61.5 F)
2011
12.0 C (53.6 F)
2012
14.5 C (58.1 F)
2013
13.5 C (56.3 F)
2014
14.6 C (58.3 F)
2015
10.0 C (50.0 F)
2016
14.2 C (57.6 F)
2017
17.2 C (63.0 F)
2018
14.4 C (57.9 F)
2019
19.5 C (67.1 F)
2020
15.0 C (59.0 F)
2021
19.2 C (66.6 F)
2022
16.3 C (61.3 F)
2023
11.9 C (53.4 F)
2024
12.5 C (54.5 F)
2025
17.2 C (63.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ouesso, 1950 to 2025. The record is 470.9 mm (18.5 in) in 1982, marked on the chart; the median year is 80.5 mm (3.2 in).
Wettest day (Rx1day) at Ouesso by year
Year
Wettest day (Rx1day)
1950
92.5 mm (3.6 in)
1951
73.5 mm (2.9 in)
1952
76.5 mm (3.0 in)
1953
74.2 mm (2.9 in)
1954
65.3 mm (2.6 in)
1955
80.9 mm (3.2 in)
1956
73.2 mm (2.9 in)
1957
186.4 mm (7.3 in)
1958
100.2 mm (3.9 in)
1959
64.1 mm (2.5 in)
1960
111.0 mm (4.4 in)
1961
98.4 mm (3.9 in)
1962
105.0 mm (4.1 in)
1963
90.0 mm (3.5 in)
1964
78.6 mm (3.1 in)
1965
76.2 mm (3.0 in)
1967
102.6 mm (4.0 in)
1968
73.5 mm (2.9 in)
1969
59.7 mm (2.4 in)
1970
148.9 mm (5.9 in)
1971
72.6 mm (2.9 in)
1972
102.0 mm (4.0 in)
1973
50.6 mm (2.0 in)
1974
73.4 mm (2.9 in)
1975
80.0 mm (3.1 in)
1976
102.5 mm (4.0 in)
1977
92.0 mm (3.6 in)
1978
83.5 mm (3.3 in)
1979
58.0 mm (2.3 in)
1980
90.5 mm (3.6 in)
1981
45.0 mm (1.8 in)
1982
470.9 mm (18.5 in)
1983
197.1 mm (7.8 in)
1984
115.1 mm (4.5 in)
1985
106.9 mm (4.2 in)
1986
257.0 mm (10.1 in)
1987
83.1 mm (3.3 in)
1988
50.0 mm (2.0 in)
1989
42.9 mm (1.7 in)
1990
193.0 mm (7.6 in)
1991
116.1 mm (4.6 in)
1992
58.9 mm (2.3 in)
1993
95.0 mm (3.7 in)
1994
382.0 mm (15.0 in)
1995
64.0 mm (2.5 in)
1996
90.9 mm (3.6 in)
1997
51.1 mm (2.0 in)
1998
88.9 mm (3.5 in)
1999
71.9 mm (2.8 in)
2000
94.0 mm (3.7 in)
2001
89.9 mm (3.5 in)
2002
23.9 mm (0.9 in)
2003
59.9 mm (2.4 in)
2007
37.1 mm (1.5 in)
2008
89.9 mm (3.5 in)
2009
65.0 mm (2.6 in)
2010
98.0 mm (3.9 in)
2011
146.1 mm (5.8 in)
2012
62.0 mm (2.4 in)
2013
72.9 mm (2.9 in)
2014
79.0 mm (3.1 in)
2015
72.9 mm (2.9 in)
2016
79.0 mm (3.1 in)
2017
183.9 mm (7.2 in)
2018
59.9 mm (2.4 in)
2019
87.9 mm (3.5 in)
2020
71.9 mm (2.8 in)
2021
70.1 mm (2.8 in)
2022
77.0 mm (3.0 in)
2023
99.1 mm (3.9 in)
2024
71.9 mm (2.8 in)
2025
88.9 mm (3.5 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ouesso, 1950 to 2025. The record is 500.2 mm (19.7 in) in 1982, marked on the chart; the median year is 111.0 mm (4.4 in).
Wettest five days (Rx5day) at Ouesso by year
Year
Wettest five days (Rx5day)
1950
158.3 mm (6.2 in)
1951
99.7 mm (3.9 in)
1952
105.7 mm (4.2 in)
1953
94.2 mm (3.7 in)
1954
123.3 mm (4.9 in)
1955
123.0 mm (4.8 in)
1956
99.2 mm (3.9 in)
1957
215.9 mm (8.5 in)
1958
139.7 mm (5.5 in)
1959
113.1 mm (4.5 in)
1960
111.9 mm (4.4 in)
1961
121.7 mm (4.8 in)
1962
137.1 mm (5.4 in)
1963
126.2 mm (5.0 in)
1964
128.0 mm (5.0 in)
1965
110.9 mm (4.4 in)
1967
206.2 mm (8.1 in)
1968
119.0 mm (4.7 in)
1969
89.3 mm (3.5 in)
1970
163.4 mm (6.4 in)
1971
148.3 mm (5.8 in)
1972
126.4 mm (5.0 in)
1973
93.5 mm (3.7 in)
1974
86.8 mm (3.4 in)
1975
185.2 mm (7.3 in)
1976
140.3 mm (5.5 in)
1977
165.6 mm (6.5 in)
1978
140.5 mm (5.5 in)
1979
95.5 mm (3.8 in)
1980
135.7 mm (5.3 in)
1981
90.0 mm (3.5 in)
1982
500.2 mm (19.7 in)
1983
318.8 mm (12.6 in)
1984
n/a
1985
n/a
1986
n/a
1987
39.9 mm (1.6 in)
1988
21.6 mm (0.9 in)
1989
22.0 mm (0.9 in)
1990
79.3 mm (3.1 in)
1991
50.5 mm (2.0 in)
1992
30.5 mm (1.2 in)
1993
129.2 mm (5.1 in)
1994
80.0 mm (3.1 in)
1995
53.9 mm (2.1 in)
1996
171.7 mm (6.8 in)
1997
57.0 mm (2.2 in)
1998
n/a
1999
111.1 mm (4.4 in)
2000
n/a
2001
133.7 mm (5.3 in)
2002
n/a
2003
59.9 mm (2.4 in)
2007
n/a
2008
120.9 mm (4.8 in)
2009
75.9 mm (3.0 in)
2010
72.2 mm (2.8 in)
2011
73.2 mm (2.9 in)
2012
81.3 mm (3.2 in)
2013
100.0 mm (3.9 in)
2014
126.0 mm (5.0 in)
2015
130.2 mm (5.1 in)
2016
129.0 mm (5.1 in)
2017
83.1 mm (3.3 in)
2018
63.0 mm (2.5 in)
2019
81.3 mm (3.2 in)
2020
100.1 mm (3.9 in)
2021
127.8 mm (5.0 in)
2022
102.1 mm (4.0 in)
2023
110.0 mm (4.3 in)
2024
33.3 mm (1.3 in)
2025
n/a
Longest dry spell (CDD)
The longest dry spell of the year at Ouesso, 1950 to 2025. The record is 39 days in 1960, marked on the chart; the median year is 4 days.
Longest dry spell (CDD) at Ouesso by year
Year
Longest dry spell (CDD)
1950
24 days
1951
24 days
1952
17 days
1953
17 days
1954
30 days
1955
15 days
1956
23 days
1957
18 days
1958
25 days
1959
14 days
1960
39 days
1961
23 days
1962
34 days
1963
11 days
1964
31 days
1965
12 days
1967
33 days
1968
14 days
1969
23 days
1970
20 days
1971
23 days
1972
27 days
1973
16 days
1974
16 days
1975
24 days
1976
15 days
1977
18 days
1978
16 days
1979
16 days
1980
15 days
1981
8 days
1982
4 days
1983
3 days
1984
n/a
1985
1 day
1986
2 days
1987
2 days
1988
3 days
1989
1 day
1990
6 days
1991
3 days
1992
2 days
1993
3 days
1994
3 days
1995
2 days
1996
4 days
1997
2 days
1998
3 days
1999
3 days
2000
2 days
2001
2 days
2002
2 days
2003
4 days
2007
1 day
2008
2 days
2009
3 days
2010
2 days
2011
2 days
2012
3 days
2013
2 days
2014
5 days
2015
3 days
2016
3 days
2017
4 days
2018
4 days
2019
3 days
2020
3 days
2021
3 days
2022
3 days
2023
2 days
2024
3 days
2025
1 day
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.
Download the Data
Data for Ouesso standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ouesso 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.