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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Heat wave in Niger and 6 other countries, 3 to 23 December 2020

Heat wave in Niger and 6 other countries, 3 to 23 December 2020: 185 records at 44 stations, peak on 8 December 2020. Closed.

Data as of . Last revised (2026-10-17).

Key Facts

  • Heat wave in Niger and 6 other countries, 3 to 23 December 2020 set or tied 185 station records at 44 stations.
  • It ran from 3 December 2020 to 23 December 2020 (21 days) and its peak day was 8 December 2020.
  • Status: closed.
  • Bougouni set a daily record high minimum temperature of 22.9 C (73.2 F) on 18 December 2020.
  • The busiest day was 8 December 2020 with 24 records.
  • The oldest broken record in the ranked list had stood for 87 years.

Footprint

3 to 23 December 2020
Footprint of Heat wave in Niger and 6 other countries, 3 to 23 December 2020 The area covered by Heat wave in Niger and 6 other countries, 3 to 23 December 2020 is outlined, with 11 of the stations that set records marked, coloured by record type.
The area covered by Heat wave in Niger and 6 other countries, 3 to 23 December 2020 is outlined, with 11 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Heat wave in Niger and 6 other countries, 3 to 23 December 2020: stations that set records in the event
StationTypeValueDate
BougouniRecord high minimum temperature22.9 C (73.2 F)2020-12-18
TillaberyRecord high maximum temperature39.3 C (102.7 F)2020-12-11
Niamey AeroRecord high maximum temperature38.4 C (101.1 F)2020-12-04
Birni N'KonniRecord high maximum temperature39.2 C (102.6 F)2020-12-10
ZinderRecord high minimum temperature22.5 C (72.5 F)2020-12-08
GaouaRecord high maximum temperature37.6 C (99.7 F)2020-12-12
ManRecord high minimum temperature21.2 C (70.2 F)2020-12-17
Fada N'GourmaRecord high maximum temperature38.9 C (102.0 F)2020-12-12
AgadezRecord high maximum temperature36.5 C (97.7 F)2020-12-06
MaradiRecord high maximum temperature37.6 C (99.7 F)2020-12-10
N'GuigniRecord high maximum temperature38.4 C (101.1 F)2020-12-10

Records per Day

Peak day 24
Records per day during Heat wave in Niger and 6 other countries, 3 to 23 December 2020 Records set or tied each day from 3 December 2020 to 23 December 2020. The most in one day was 24 on 8 December 2020. 0 6 13 19 25 12-0312-0612-0912-1212-1512-1812-21
Records set or tied each day from 3 December 2020 to 23 December 2020. The most in one day was 24 on 8 December 2020.
Records per day during Heat wave in Niger and 6 other countries, 3 to 23 December 2020
DateRecords
2020-12-035
2020-12-0415
2020-12-0511
2020-12-0613
2020-12-0712
2020-12-0824
2020-12-0913
2020-12-1018
2020-12-1117
2020-12-1216
2020-12-138
2020-12-148
2020-12-154
2020-12-163
2020-12-175
2020-12-185
2020-12-191
2020-12-204
2020-12-211
2020-12-221
2020-12-231

Top Records by Margin

Margin over the record replaced
Top records of Heat wave in Niger and 6 other countries, 3 to 23 December 2020 ranked by margin
Bougouni, 12-183.9 C (7.0 F)
Agadez, 12-061.5 C (2.7 F)
Agadez, 12-071.5 C (2.7 F)
Birni N'Konni, 12-071.3 C (2.3 F)
Tillabery, 12-041.1 C (2.0 F)
Tillabery, 12-081.0 C (1.8 F)
Zinder, 12-080.9 C (1.6 F)
Man, 12-170.9 C (1.6 F)
Tillabery, 12-050.6 C (1.1 F)
Gaoua, 12-080.6 C (1.1 F)
Birni N'Konni, 12-090.6 C (1.1 F)
Gaoua, 12-120.4 C (0.7 F)
Tillabery, 12-110.3 C (0.5 F)
Tillabery, 12-060.2 C (0.4 F)
Niamey Aero, 12-040.2 C (0.4 F)

Margin is how far the new value is beyond the record it replaced. Ties are not shown.

Margin Against Age of the Broken Record

Margin against age of the broken record in Heat wave in Niger and 6 other countries, 3 to 23 December 2020 185 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right. 0 25 50 75 100 0.01.02.03.04.0 Margin (C) Years the old record stood
185 records plotted by how far they beat the old record (across) and how many years the old record had stood (up). Long standing records beaten by a wide margin sit in the top right.
Margin against age of the broken record in Heat wave in Niger and 6 other countries, 3 to 23 December 2020
Margin (C)Years the old record stood
3.940
0.387
0.287
1.173
0.280
0.281
0.673
0.960
0.475
0.967
1.362
1.062
0.275
0.273
1.562
1.562
0.173
0.662
0.260
0.662
0.167
0.460
0.360
0.462
0.433
0.762
0.162
1.342
0.333
0.851
0.723
1.340
0.152
0.853
0.353
1.145
1.533
1.10
0.153
0.249
1.029
0.649
2.018
1.425
0.437
2.325
0.339
0.940
0.643
0.740
1.230
0.639
0.440
1.830
0.249
1.039
0.525
0.437
0.730
0.833
0.240
1.618
1.130
0.839
1.333
0.341
0.340
0.40
0.34
0.530
0.729
2.42
0.237
0.730
1.033
0.933
0.730
0.430
0.628
0.433
0.433
0.60
0.636
0.933
0.430
0.130
0.130
0.428
0.823
1.07
0.523
0.322
0.333
0.723
0.228
0.719
1.818
0.530
0.433
0.330
0.333
1.217
0.916
1.215
0.125
0.518
0.323
1.58
0.322
0.330
0.725
0.525
1.216
0.430
0.330
0.118
1.016
1.51
0.216
0.77
0.518
1.518
1.218
0.525
0.128
0.128
0.128
0.128
1.04
0.17
0.318
0.118
0.525
0.818
0.718
0.212
0.222
0.522
0.124
0.224
0.228
0.416
0.115
0.216
1.01
0.67
0.88
1.015
0.518
0.218
0.219
0.78
0.211
0.212
0.518
0.68
0.415
0.223
0.24
0.36
0.36
0.17
1.07
0.312
0.58
0.413
0.76
0.116
0.110
0.14
0.57
0.47
0.48
0.56
0.66
0.116
0.53
0.11
0.57
0.18
0.16
0.16
0.18
0.53
0.22

Compared With Other Events

Station records per event
Station records in Heat wave in Niger and 6 other countries, 3 to 23 December 2020 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 20249,869 records
Heat wave in United States, 28 January to 24 February 20266,528 records
Heat wave in United States and Mexico, 24 May to 19 June 20205,047 records
Heat wave in United States and Mexico, 26 March to 17 April 20213,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 20223,626 records
Heat wave in Niger and 6 other countries, 3 to 23 December 2020 (this event)185 records

Every Record Set

20 of 185
Every record set or tied during Heat wave in Niger and 6 other countries, 3 to 23 December 2020, in date order
DateStationRecordValueMarginYears stoodSignificance
2020-12-04TillaberyRecord high maximum temperature39.5 C (103.1 F)1.1 C (2.0 F)7332 of 100 (Routine)
2020-12-04Niamey AeroRecord high maximum temperature38.4 C (101.1 F)0.2 C (0.4 F)8032 of 100 (Routine)
2020-12-05TillaberyRecord high maximum temperature39.0 C (102.2 F)0.6 C (1.1 F)7331 of 100 (Routine)
2020-12-06TillaberyRecord high maximum temperature39.2 C (102.6 F)0.2 C (0.4 F)8734 of 100 (Routine)
2020-12-06AgadezRecord high maximum temperature36.5 C (97.7 F)1.5 C (2.7 F)6228 of 100 (Routine)
2020-12-07Birni N'KonniRecord high maximum temperature39.8 C (103.6 F)1.3 C (2.3 F)6230 of 100 (Routine)
2020-12-07AgadezRecord high maximum temperature36.5 C (97.7 F)1.5 C (2.7 F)6228 of 100 (Routine)
2020-12-08ZinderRecord high minimum temperature22.5 C (72.5 F)0.9 C (1.6 F)6031 of 100 (Routine)
2020-12-08TillaberyRecord high maximum temperature39.2 C (102.6 F)1.0 C (1.8 F)6229 of 100 (Routine)
2020-12-08GaouaRecord high maximum temperature37.6 C (99.7 F)0.6 C (1.1 F)6228 of 100 (Routine)
2020-12-09Birni N'KonniRecord high maximum temperature39.0 C (102.2 F)0.6 C (1.1 F)6227 of 100 (Routine)
2020-12-10Birni N'KonniRecord high maximum temperature39.2 C (102.6 F)0.2 C (0.4 F)8132 of 100 (Routine)
2020-12-10MaradiRecord high maximum temperature37.6 C (99.7 F)0.2 C (0.4 F)7328 of 100 (Routine)
2020-12-10N'GuigniRecord high maximum temperature38.4 C (101.1 F)0.2 C (0.4 F)6027 of 100 (Routine)
2020-12-11TillaberyRecord high maximum temperature39.3 C (102.7 F)0.3 C (0.5 F)8735 of 100 (Notable)
2020-12-11Fada N'GourmaRecord high maximum temperature38.7 C (101.7 F)0.1 C (0.2 F)7328 of 100 (Routine)
2020-12-12GaouaRecord high maximum temperature37.6 C (99.7 F)0.4 C (0.7 F)7531 of 100 (Routine)
2020-12-12Fada N'GourmaRecord high maximum temperature38.9 C (102.0 F)0.2 C (0.4 F)7529 of 100 (Routine)
2020-12-17ManRecord high minimum temperature21.2 C (70.2 F)0.9 C (1.6 F)6730 of 100 (Routine)
2020-12-18BougouniRecord high minimum temperature22.9 C (73.2 F)3.9 C (7.0 F)4036 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 185 records the event counts. The counts above use the full total.

Download the Data

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. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.