Heat wave in Germany and 33 other countries, 10 February to 4 March 2021

Name: Heat wave in Germany and 33 other countries, 10 February to 4 March 2021
Start: 2021-02-10
End: 2021-03-04
Location: Germany, Sweden, Finland, Norway, Netherlands, France, United Kingdom, Spain, Slovenia, Italy, Croatia, Estonia, Russia, Poland, Austria, Romania, Switzerland, Czech Republic, Greece, Denmark, Bosnia and Herzegovina, Belgium, Belarus, Hungary, Montenegro, Ireland, Latvia, Ukraine, Luxembourg, Slovakia, Algeria, Lithuania, Portugal, Serbia

Heat wave in Germany and 33 other countries, 10 February to 4 March 2021: 3,025 records at 850 stations, peak on 25 February 2021. Closed.

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

Key Facts

Heat wave in Germany and 33 other countries, 10 February to 4 March 2021 set or tied 3,025 station records at 850 stations.
It ran from 10 February 2021 to 4 March 2021 (23 days) and its peak day was 25 February 2021.
Status: closed.
Brocken set a monthly record high maximum temperature of 14.6 C (58.3 F) on 22 February 2021.
The busiest day was 25 February 2021 with 475 records.
The oldest broken record in the ranked list had stood for 164 years.

Footprint

10 February to 4 March 2021

The area covered by Heat wave in Germany and 33 other countries, 10 February to 4 March 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Germany and 33 other countries, 10 February to 4 March 2021: stations that set records in the event
Station	Type	Value	Date
Brocken	Record high maximum temperature	14.6 C (58.3 F)	2021-02-22
Saentis	Record high maximum temperature	7.3 C (45.1 F)	2021-02-25
Bjelasnica	Record high minimum temperature	3.0 C (37.4 F)	2021-02-26
Hohenpeissenberg	Record high minimum temperature	9.3 C (48.7 F)	2021-02-22
Boras	Record high maximum temperature	13.1 C (55.6 F)	2021-02-22
Ljubljana Bezigrad	Record high maximum temperature	19.8 C (67.6 F)	2021-02-23
Zugspitze	Record high minimum temperature	-1.5 C (29.3 F)	2021-02-25
Magdeburg	Record high maximum temperature	19.8 C (67.6 F)	2021-02-25
Vasteras-Hasslo	Record high maximum temperature	12.4 C (54.3 F)	2021-02-28
Uccle	Record high minimum temperature	12.1 C (53.8 F)	2021-02-23
Potsdam	Record high maximum temperature	19.7 C (67.5 F)	2021-02-25
Uppsala_Aut	Record high maximum temperature	11.5 C (52.7 F)	2021-02-28
Lyon - St Exupery	Record high maximum temperature	19.6 C (67.3 F)	2021-02-22
Nurnberg	Record high maximum temperature	18.1 C (64.6 F)	2021-02-23
Sonnblick	Record high minimum temperature	-2.1 C (28.2 F)	2021-02-25
Bremen-Seefahrtschule	Record high maximum temperature	17.6 C (63.7 F)	2021-02-25
Visby_Flygplats	Record high maximum temperature	9.1 C (48.4 F)	2021-03-01
Montabaur	Record high maximum temperature	19.3 C (66.7 F)	2021-02-23
Lichtentanne	Record high maximum temperature	18.9 C (66.0 F)	2021-02-23
Maastricht	Record high minimum temperature	10.8 C (51.4 F)	2021-02-23

Records per Day

Peak day 475

Records set or tied each day from 10 February 2021 to 4 March 2021. The most in one day was 475 on 25 February 2021.

Records per day during Heat wave in Germany and 33 other countries, 10 February to 4 March 2021
Date	Records
2021-02-10	2
2021-02-11	1
2021-02-12	1
2021-02-13	1
2021-02-14	6
2021-02-15	19
2021-02-16	12
2021-02-17	62
2021-02-18	42
2021-02-19	17
2021-02-20	112
2021-02-21	255
2021-02-22	274
2021-02-23	424
2021-02-24	469
2021-02-25	475
2021-02-26	163
2021-02-27	34
2021-02-28	218
2021-03-01	170
2021-03-02	136
2021-03-03	131
2021-03-04	1

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Germany and 33 other countries, 10 February to 4 March 2021 ranked by margin
Montabaur, 02-23	5.8 C (10.4 F)
Boras, 02-22	4.1 C (7.4 F)
Bjelasnica, 02-26	3.5 C (6.3 F)
Saentis, 02-25	3.1 C (5.6 F)
Hohenpeissenberg, 02-22	2.8 C (5.0 F)
Lyon - St Exupery, 02-22	2.8 C (5.0 F)
Ljubljana Bezigrad, 02-23	2.7 C (4.9 F)
Zugspitze, 02-25	2.6 C (4.7 F)
Magdeburg, 02-25	2.5 C (4.5 F)
Potsdam, 02-25	2.3 C (4.1 F)
Uccle, 02-23	2.2 C (4.0 F)
Sonnblick, 02-25	2.1 C (3.8 F)
Uppsala_Aut, 02-28	2.0 C (3.6 F)
Bremen-Seefahrtschule, 02-25	1.6 C (2.9 F)
Nurnberg, 02-23	1.6 C (2.9 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

500 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 Germany and 33 other countries, 10 February to 4 March 2021
Margin (C)	Years the old record stood
0.1	120
3.5	120
3.1	135
2.6	101
2.8	118
2.5	120
2.7	103
4.1	89
1.1	78
2.2	109
2.3	120
2.0	157
2.1	120
2.8	95
1.6	120
1.6	118
1.1	133
5.8	78
0.7	71
1.0	109
1.2	133
1.3	135
1.1	111
1.2	99
1.0	120
0.6	110
1.5	63
0.6	110
1.3	99
0.5	133
2.6	59
0.7	130
0.4	118
0.5	137
0.5	100
0.4	109
0.1	144
1.0	95
1.1	61
3.5	78
0.3	109
0.4	120
0.3	101
0.2	100
0.4	133
2.8	78
0.2	164
0.5	133
0.3	110
1.6	91
0.5	61
0.8	60
0.3	95
0.2	95
3.0	78
2.7	78
0.1	60
1.5	63
0.1	60
0.4	60
0.2	95
0.2	60
0.9	91
0.7	91
1.4	93
2.9	72
0.9	86
0.2	92
1.5	81
1.0	60
4.1	60
4.3	72
1.9	60
1.3	61
1.5	63
3.4	68
1.4	78
0.7	61
4.5	68
2.9	72
2.0	78
1.4	81
1.5	81
2.8	78
0.8	60
1.7	82
0.6	60
0.7	63
2.9	78
1.0	59
2.5	78
0.6	63
0.9	63
2.5	72
5.0	55
0.4	60
1.7	47
0.1	61
0.4	63
0.2	60
2.2	78
1.9	78
3.5	72
3.5	72
0.1	63
0.9	59
0.1	61
0.3	63
1.2	78
2.0	78
1.2	78
4.9	60
1.6	72
0.6	78
4.6	55
1.9	78
2.5	60
1.3	72
0.3	59
0.9	55
2.8	60
4.3	60
3.5	31
4.1	31
1.5	72
1.5	78
1.9	64
0.8	78
0.9	78
0.3	81
3.2	62
0.2	78
1.2	78
0.1	78
1.9	31
4.8	55
2.4	68
5.1	55
5.3	55
0.5	54
1.9	31
2.1	31
2.6	72
1.1	72
1.9	72
0.9	72
6.7	43
1.8	72
0.6	78
1.8	60
2.1	60
2.5	68
4.3	55
2.6	68
2.1	60
1.0	72
1.2	72
3.5	62
3.4	62
1.8	69
0.8	69
2.6	68
2.1	68
1.4	72
0.8	78
0.1	76
1.1	30
3.9	60
1.1	75
1.7	52
1.3	31
4.2	55
1.1	31
0.1	78
2.1	68
3.1	60
3.9	55
5.0	31
3.1	60
4.0	60
3.8	55
1.9	68
2.1	68
3.7	47
1.6	62
2.3	73
2.2	60
1.3	72
2.0	62
1.3	72
1.2	70
1.7	57
1.0	72
5.4	31
5.3	31
0.7	31
0.6	31
1.8	60
2.4	60
0.7	31

Compared With Other Events

Station records per event

Station records in Heat wave in Germany and 33 other countries, 10 February to 4 March 2021 compared with similar events
Heat wave in United States and Mexico, 16 January to 14 February 2024	9,869 records
Heat wave in United States, 28 January to 24 February 2026	6,528 records
Heat wave in United States and Mexico, 24 May to 19 June 2020	5,047 records
Heat wave in United States and Mexico, 26 March to 17 April 2021	3,669 records
Heat wave in Germany and 49 other countries, 18 December 2021 to 15 January 2022	3,626 records
Heat wave in Germany and 33 other countries, 10 February to 4 March 2021 (this event)	3,025 records

Every Record Set

20 of 3,025

Every record set or tied during Heat wave in Germany and 33 other countries, 10 February to 4 March 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-02-22	Brocken	Record high maximum temperature	14.6 C (58.3 F)	0.1 C (0.2 F)	120	50 of 100 (Notable)
2021-02-22	Hohenpeissenberg	Record high minimum temperature	9.3 C (48.7 F)	2.8 C (5.0 F)	118	45 of 100 (Notable)
2021-02-22	Boras	Record high maximum temperature	13.1 C (55.6 F)	4.1 C (7.4 F)	89	45 of 100 (Notable)
2021-02-22	Lyon - St Exupery	Record high maximum temperature	19.6 C (67.3 F)	2.8 C (5.0 F)	95	43 of 100 (Notable)
2021-02-23	Ljubljana Bezigrad	Record high maximum temperature	19.8 C (67.6 F)	2.7 C (4.9 F)	103	45 of 100 (Notable)
2021-02-23	Uccle	Record high minimum temperature	12.1 C (53.8 F)	2.2 C (4.0 F)	109	44 of 100 (Notable)
2021-02-23	Nurnberg	Record high maximum temperature	18.1 C (64.6 F)	1.6 C (2.9 F)	118	43 of 100 (Notable)
2021-02-23	Montabaur	Record high maximum temperature	19.3 C (66.7 F)	5.8 C (10.4 F)	78	42 of 100 (Notable)
2021-02-23	Lichtentanne	Record high maximum temperature	18.9 C (66.0 F)	0.7 C (1.3 F)	71	42 of 100 (Notable)
2021-02-23	Maastricht	Record high minimum temperature	10.8 C (51.4 F)	1.0 C (1.8 F)	109	42 of 100 (Notable)
2021-02-25	Saentis	Record high maximum temperature	7.3 C (45.1 F)	3.1 C (5.6 F)	135	46 of 100 (Notable)
2021-02-25	Zugspitze	Record high minimum temperature	-1.5 C (29.3 F)	2.6 C (4.7 F)	101	45 of 100 (Notable)
2021-02-25	Magdeburg	Record high maximum temperature	19.8 C (67.6 F)	2.5 C (4.5 F)	120	45 of 100 (Notable)
2021-02-25	Potsdam	Record high maximum temperature	19.7 C (67.5 F)	2.3 C (4.1 F)	120	44 of 100 (Notable)
2021-02-25	Sonnblick	Record high minimum temperature	-2.1 C (28.2 F)	2.1 C (3.8 F)	120	43 of 100 (Notable)
2021-02-25	Bremen-Seefahrtschule	Record high maximum temperature	17.6 C (63.7 F)	1.6 C (2.9 F)	120	43 of 100 (Notable)
2021-02-26	Bjelasnica	Record high minimum temperature	3.0 C (37.4 F)	3.5 C (6.3 F)	120	46 of 100 (Notable)
2021-02-28	Vasteras-Hasslo	Record high maximum temperature	12.4 C (54.3 F)	1.1 C (2.0 F)	78	45 of 100 (Notable)
2021-02-28	Uppsala_Aut	Record high maximum temperature	11.5 C (52.7 F)	2.0 C (3.6 F)	157	44 of 100 (Notable)
2021-03-01	Visby_Flygplats	Record high maximum temperature	9.1 C (48.4 F)	1.1 C (2.0 F)	133	43 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 3,025 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.

Margin (C)	Years the old record stood
0.1	120
3.5	120
3.1	135
2.6	101
2.8	118
2.5	120
2.7	103
4.1	89
1.1	78
2.2	109
2.3	120
2.0	157
2.1	120
2.8	95
1.6	120
1.6	118
1.1	133
5.8	78
0.7	71
1.0	109
1.2	133
1.3	135
1.1	111
1.2	99
1.0	120
0.6	110
1.5	63
0.6	110
1.3	99
0.5	133
2.6	59
0.7	130
0.4	118
0.5	137
0.5	100
0.4	109
0.1	144
1.0	95
1.1	61
3.5	78
0.3	109
0.4	120
0.3	101
0.2	100
0.4	133
2.8	78
0.2	164
0.5	133
0.3	110
1.6	91
0.5	61
0.8	60
0.3	95
0.2	95
3.0	78
2.7	78
0.1	60
1.5	63
0.1	60
0.4	60
0.2	95
0.2	60
0.9	91
0.7	91
1.4	93
2.9	72
0.9	86
0.2	92
1.5	81
1.0	60
4.1	60
4.3	72
1.9	60
1.3	61
1.5	63
3.4	68
1.4	78
0.7	61
4.5	68
2.9	72
2.0	78
1.4	81
1.5	81
2.8	78
0.8	60
1.7	82
0.6	60
0.7	63
2.9	78
1.0	59
2.5	78
0.6	63
0.9	63
2.5	72
5.0	55
0.4	60
1.7	47
0.1	61
0.4	63
0.2	60
2.2	78
1.9	78
3.5	72
3.5	72
0.1	63
0.9	59
0.1	61
0.3	63
1.2	78
2.0	78
1.2	78
4.9	60
1.6	72
0.6	78
4.6	55
1.9	78
2.5	60
1.3	72
0.3	59
0.9	55
2.8	60
4.3	60
3.5	31
4.1	31
1.5	72
1.5	78
1.9	64
0.8	78
0.9	78
0.3	81
3.2	62
0.2	78
1.2	78
0.1	78
1.9	31
4.8	55
2.4	68
5.1	55
5.3	55
0.5	54
1.9	31
2.1	31
2.6	72
1.1	72
1.9	72
0.9	72
6.7	43
1.8	72
0.6	78
1.8	60
2.1	60
2.5	68
4.3	55
2.6	68
2.1	60
1.0	72
1.2	72
3.5	62
3.4	62
1.8	69
0.8	69
2.6	68
2.1	68
1.4	72
0.8	78
0.1	76
1.1	30
3.9	60
1.1	75
1.7	52
1.3	31
4.2	55
1.1	31
0.1	78
2.1	68
3.1	60
3.9	55
5.0	31
3.1	60
4.0	60
3.8	55
1.9	68
2.1	68
3.7	47
1.6	62
2.3	73
2.2	60
1.3	72
2.0	62
1.3	72
1.2	70
1.7	57
1.0	72
5.4	31
5.3	31
0.7	31
0.6	31
1.8	60
2.4	60
0.7	31

Margin (C)	Years the old record stood
0.1	120
3.5	120
3.1	135
2.6	101
2.8	118
2.5	120
2.7	103
4.1	89
1.1	78
2.2	109
2.3	120
2.0	157
2.1	120
2.8	95
1.6	120
1.6	118
1.1	133
5.8	78
0.7	71
1.0	109
1.2	133
1.3	135
1.1	111
1.2	99
1.0	120
0.6	110
1.5	63
0.6	110
1.3	99
0.5	133
2.6	59
0.7	130
0.4	118
0.5	137
0.5	100
0.4	109
0.1	144
1.0	95
1.1	61
3.5	78
0.3	109
0.4	120
0.3	101
0.2	100
0.4	133
2.8	78
0.2	164
0.5	133
0.3	110
1.6	91
0.5	61
0.8	60
0.3	95
0.2	95
3.0	78
2.7	78
0.1	60
1.5	63
0.1	60
0.4	60
0.2	95
0.2	60
0.9	91
0.7	91
1.4	93
2.9	72
0.9	86
0.2	92
1.5	81
1.0	60
4.1	60
4.3	72
1.9	60
1.3	61
1.5	63
3.4	68
1.4	78
0.7	61
4.5	68
2.9	72
2.0	78
1.4	81
1.5	81
2.8	78
0.8	60
1.7	82
0.6	60
0.7	63
2.9	78
1.0	59
2.5	78
0.6	63
0.9	63
2.5	72
5.0	55
0.4	60
1.7	47
0.1	61
0.4	63
0.2	60
2.2	78
1.9	78
3.5	72
3.5	72
0.1	63
0.9	59
0.1	61
0.3	63
1.2	78
2.0	78
1.2	78
4.9	60
1.6	72
0.6	78
4.6	55
1.9	78
2.5	60
1.3	72
0.3	59
0.9	55
2.8	60
4.3	60
3.5	31
4.1	31
1.5	72
1.5	78
1.9	64
0.8	78
0.9	78
0.3	81
3.2	62
0.2	78
1.2	78
0.1	78
1.9	31
4.8	55
2.4	68
5.1	55
5.3	55
0.5	54
1.9	31
2.1	31
2.6	72
1.1	72
1.9	72
0.9	72
6.7	43
1.8	72
0.6	78
1.8	60
2.1	60
2.5	68
4.3	55
2.6	68
2.1	60
1.0	72
1.2	72
3.5	62
3.4	62
1.8	69
0.8	69
2.6	68
2.1	68
1.4	72
0.8	78
0.1	76
1.1	30
3.9	60
1.1	75
1.7	52
1.3	31
4.2	55
1.1	31
0.1	78
2.1	68
3.1	60
3.9	55
5.0	31
3.1	60
4.0	60
3.8	55
1.9	68
2.1	68
3.7	47
1.6	62
2.3	73
2.2	60
1.3	72
2.0	62
1.3	72
1.2	70
1.7	57
1.0	72
5.4	31
5.3	31
0.7	31
0.6	31
1.8	60
2.4	60
0.7	31