Heat wave in Russia and 4 other countries, 14 August to 2 September 2021

Name: Heat wave in Russia and 4 other countries, 14 August to 2 September 2021
Start: 2021-08-14
End: 2021-09-02
Location: Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Ukraine

Heat wave in Russia and 4 other countries, 14 August to 2 September 2021: 465 records at 153 stations, peak on 22 August 2021. Closed.

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

Key Facts

Heat wave in Russia and 4 other countries, 14 August to 2 September 2021 set or tied 465 station records at 153 stations.
It ran from 14 August 2021 to 2 September 2021 (20 days) and its peak day was 22 August 2021.
Status: closed.
Ufa set a daily record high maximum temperature of 38.4 C (101.1 F) on 21 August 2021.
The busiest day was 21 August 2021 with 61 records.
The oldest broken record in the ranked list had stood for 118 years.

Footprint

14 August to 2 September 2021

The area covered by Heat wave in Russia and 4 other countries, 14 August to 2 September 2021 is outlined, with 14 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Russia and 4 other countries, 14 August to 2 September 2021: stations that set records in the event
Station	Type	Value	Date
Ufa	Record high maximum temperature	38.4 C (101.1 F)	2021-08-21
Sarapul	Record high maximum temperature	37.3 C (99.1 F)	2021-08-20
Sredny Vasjugan	Record high maximum temperature	33.4 C (92.1 F)	2021-08-24
Biser	Record high minimum temperature	16.0 C (60.8 F)	2021-08-22
Uralsk	Record high maximum temperature	41.9 C (107.4 F)	2021-08-19
Kirov	Record high maximum temperature	35.3 C (95.5 F)	2021-08-20
Aksakovo	Record high minimum temperature	23.5 C (74.3 F)	2021-08-21
Petropavlovsk	Record high maximum temperature	34.4 C (93.9 F)	2021-08-22
Perm	Record high minimum temperature	22.5 C (72.5 F)	2021-08-22
Tobolsk	Record high maximum temperature	33.5 C (92.3 F)	2021-08-23
Turgaj	Record high maximum temperature	36.6 C (97.9 F)	2021-08-25
Voronez	Record high minimum temperature	21.7 C (71.1 F)	2021-08-19
Kustanai	Record high maximum temperature	34.7 C (94.5 F)	2021-08-21
Ischim Amsg	Record high maximum temperature	34.4 C (93.9 F)	2021-08-22

Records per Day

Peak day 61

Records set or tied each day from 14 August 2021 to 2 September 2021. The most in one day was 61 on 21 August 2021.

Records per day during Heat wave in Russia and 4 other countries, 14 August to 2 September 2021
Date	Records
2021-08-14	1
2021-08-16	2
2021-08-17	5
2021-08-18	20
2021-08-19	42
2021-08-20	33
2021-08-21	61
2021-08-22	61
2021-08-23	48
2021-08-24	42
2021-08-25	45
2021-08-26	38
2021-08-27	27
2021-08-28	25
2021-08-29	3
2021-08-30	8
2021-08-31	3
2021-09-02	1

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Russia and 4 other countries, 14 August to 2 September 2021 ranked by margin
Ufa, 08-21	5.9 C (10.6 F)
Sarapul, 08-20	4.9 C (8.8 F)
Aksakovo, 08-22	4.9 C (8.8 F)
Uralsk, 08-21	4.1 C (7.4 F)
Sredny Vasjugan, 08-24	4.0 C (7.2 F)
Ischim Amsg, 08-22	3.9 C (7.0 F)
Uralsk, 08-19	3.5 C (6.3 F)
Uralsk, 08-20	3.4 C (6.1 F)
Tobolsk, 08-23	2.9 C (5.2 F)
Petropavlovsk, 08-22	2.7 C (4.9 F)
Kirov, 08-20	2.7 C (4.9 F)
Perm, 08-22	2.4 C (4.3 F)
Ufa, 08-19	2.1 C (3.8 F)
Kirov, 08-21	2.0 C (3.6 F)
Biser, 08-22	1.2 C (2.2 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

465 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 Russia and 4 other countries, 14 August to 2 September 2021
Margin (C)	Years the old record stood
5.9	87
4.9	87
4.0	87
1.2	107
2.7	92
3.5	86
2.0	91
2.7	91
2.4	87
2.9	87
0.3	80
3.4	86
0.5	115
0.6	114
4.9	80
0.2	118
4.1	75
3.9	80
2.1	87
1.2	91
1.8	87
1.5	87
4.1	72
5.2	70
4.1	80
2.1	87
1.5	86
1.1	87
0.6	91
0.7	92
1.0	88
0.8	87
0.8	86
0.9	87
3.4	72
0.9	86
1.7	80
0.4	87
2.2	72
0.4	86
3.2	72
0.1	87
2.3	72
3.0	72
3.1	72
0.3	80
0.2	87
1.3	83
0.2	86
1.4	80
0.8	84
1.4	72
0.8	83
2.3	72
2.1	67
0.6	83
1.7	72
1.3	72
5.0	44
2.1	72
1.6	72
0.3	83
1.6	72
2.2	72
0.2	20
0.3	11
0.4	80
0.6	72
0.4	68
1.1	72
1.2	72
1.0	72
1.6	67
7.1	46
2.0	68
4.6	44
0.5	68
0.8	72
1.2	67
0.3	67
0.9	72
3.2	44
0.2	64
4.4	48
4.9	32
1.0	68
1.9	51
3.4	44
4.5	44
0.5	70
2.9	44
0.1	60
1.7	54
3.0	44
5.4	32
0.4	68
6.8	24
5.7	14
3.7	44
1.3	44
5.1	32
1.9	20
2.1	44
3.5	40
0.4	1
0.1	29
1.2	44
1.9	44
1.4	44
5.1	18
1.0	20
1.7	44
4.1	31
1.3	44
3.7	39
1.0	55
2.2	39
2.0	44
0.9	44
0.4	54
5.9	12
4.6	18
2.4	0
1.8	44
0.9	44
4.5	18
1.5	50
0.2	54
0.1	20
0.4	48
5.0	24
3.5	32
2.0	40
2.1	32
4.1	32
1.1	48
1.8	36
1.8	46
0.9	46
1.1	38
1.3	44
1.3	44
0.1	48
4.2	16
2.4	32
5.1	18
2.6	16
5.8	14
0.4	44
4.2	12
4.5	28
4.2	12
3.0	18
4.2	18
2.8	32
0.3	44
4.8	18
2.7	28
3.8	18
0.2	11
4.7	4
2.2	34
0.5	44
0.8	46
0.6	44
0.8	44
1.9	32
0.6	35
1.9	16
3.0	16
1.1	30
4.3	18
0.4	11
0.5	34
4.7	4
0.3	40
3.0	16
4.7	4
1.2	40
5.5	4
2.8	20
1.7	32
3.3	16
0.5	2
0.6	32
0.7	40
1.5	32
2.3	28
1.7	22
1.1	36
3.4	18
0.1	34
3.4	18
3.5	14
4.0	16
0.5	34
0.1	40
1.2	28
5.1	4
1.8	34

Compared With Other Events

Station records per event

Station records in Heat wave in Russia and 4 other countries, 14 August to 2 September 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 Russia and 4 other countries, 14 August to 2 September 2021 (this event)	465 records

Every Record Set

20 of 465

Every record set or tied during Heat wave in Russia and 4 other countries, 14 August to 2 September 2021, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2021-08-19	Uralsk	Record high maximum temperature	41.9 C (107.4 F)	3.5 C (6.3 F)	86	42 of 100 (Notable)
2021-08-19	Ufa	Record high maximum temperature	36.2 C (97.2 F)	2.1 C (3.8 F)	87	40 of 100 (Notable)
2021-08-19	Voronez	Record high minimum temperature	21.7 C (71.1 F)	1.2 C (2.2 F)	91	40 of 100 (Notable)
2021-08-20	Sarapul	Record high maximum temperature	37.3 C (99.1 F)	4.9 C (8.8 F)	87	44 of 100 (Notable)
2021-08-20	Kirov	Record high maximum temperature	35.3 C (95.5 F)	2.7 C (4.9 F)	91	42 of 100 (Notable)
2021-08-20	Uralsk	Record high maximum temperature	41.4 C (106.5 F)	3.4 C (6.1 F)	86	41 of 100 (Notable)
2021-08-21	Ufa	Record high maximum temperature	38.4 C (101.1 F)	5.9 C (10.6 F)	87	47 of 100 (Notable)
2021-08-21	Kirov	Record high minimum temperature	21.8 C (71.2 F)	2.0 C (3.6 F)	91	42 of 100 (Notable)
2021-08-21	Aksakovo	Record high minimum temperature	23.5 C (74.3 F)	0.3 C (0.5 F)	80	42 of 100 (Notable)
2021-08-21	Kustanai	Record high maximum temperature	34.7 C (94.5 F)	0.2 C (0.4 F)	118	40 of 100 (Notable)
2021-08-21	Uralsk	Record high maximum temperature	41.5 C (106.7 F)	4.1 C (7.4 F)	75	40 of 100 (Notable)
2021-08-22	Biser	Record high minimum temperature	16.0 C (60.8 F)	1.2 C (2.2 F)	107	43 of 100 (Notable)
2021-08-22	Petropavlovsk	Record high maximum temperature	34.4 C (93.9 F)	2.7 C (4.9 F)	92	42 of 100 (Notable)
2021-08-22	Perm	Record high minimum temperature	22.5 C (72.5 F)	2.4 C (4.3 F)	87	42 of 100 (Notable)
2021-08-22	Aksakovo	Record high maximum temperature	36.5 C (97.7 F)	4.9 C (8.8 F)	80	41 of 100 (Notable)
2021-08-22	Ischim Amsg	Record high maximum temperature	34.4 C (93.9 F)	3.9 C (7.0 F)	80	40 of 100 (Notable)
2021-08-23	Tobolsk	Record high maximum temperature	33.5 C (92.3 F)	2.9 C (5.2 F)	87	42 of 100 (Notable)
2021-08-24	Sredny Vasjugan	Record high maximum temperature	33.4 C (92.1 F)	4.0 C (7.2 F)	87	44 of 100 (Notable)
2021-08-25	Turgaj	Record high maximum temperature	36.6 C (97.9 F)	0.6 C (1.1 F)	114	41 of 100 (Notable)
2021-08-26	Turgaj	Record high minimum temperature	21.4 C (70.5 F)	0.5 C (0.9 F)	115	41 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 465 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
5.9	87
4.9	87
4.0	87
1.2	107
2.7	92
3.5	86
2.0	91
2.7	91
2.4	87
2.9	87
0.3	80
3.4	86
0.5	115
0.6	114
4.9	80
0.2	118
4.1	75
3.9	80
2.1	87
1.2	91
1.8	87
1.5	87
4.1	72
5.2	70
4.1	80
2.1	87
1.5	86
1.1	87
0.6	91
0.7	92
1.0	88
0.8	87
0.8	86
0.9	87
3.4	72
0.9	86
1.7	80
0.4	87
2.2	72
0.4	86
3.2	72
0.1	87
2.3	72
3.0	72
3.1	72
0.3	80
0.2	87
1.3	83
0.2	86
1.4	80
0.8	84
1.4	72
0.8	83
2.3	72
2.1	67
0.6	83
1.7	72
1.3	72
5.0	44
2.1	72
1.6	72
0.3	83
1.6	72
2.2	72
0.2	20
0.3	11
0.4	80
0.6	72
0.4	68
1.1	72
1.2	72
1.0	72
1.6	67
7.1	46
2.0	68
4.6	44
0.5	68
0.8	72
1.2	67
0.3	67
0.9	72
3.2	44
0.2	64
4.4	48
4.9	32
1.0	68
1.9	51
3.4	44
4.5	44
0.5	70
2.9	44
0.1	60
1.7	54
3.0	44
5.4	32
0.4	68
6.8	24
5.7	14
3.7	44
1.3	44
5.1	32
1.9	20
2.1	44
3.5	40
0.4	1
0.1	29
1.2	44
1.9	44
1.4	44
5.1	18
1.0	20
1.7	44
4.1	31
1.3	44
3.7	39
1.0	55
2.2	39
2.0	44
0.9	44
0.4	54
5.9	12
4.6	18
2.4	0
1.8	44
0.9	44
4.5	18
1.5	50
0.2	54
0.1	20
0.4	48
5.0	24
3.5	32
2.0	40
2.1	32
4.1	32
1.1	48
1.8	36
1.8	46
0.9	46
1.1	38
1.3	44
1.3	44
0.1	48
4.2	16
2.4	32
5.1	18
2.6	16
5.8	14
0.4	44
4.2	12
4.5	28
4.2	12
3.0	18
4.2	18
2.8	32
0.3	44
4.8	18
2.7	28
3.8	18
0.2	11
4.7	4
2.2	34
0.5	44
0.8	46
0.6	44
0.8	44
1.9	32
0.6	35
1.9	16
3.0	16
1.1	30
4.3	18
0.4	11
0.5	34
4.7	4
0.3	40
3.0	16
4.7	4
1.2	40
5.5	4
2.8	20
1.7	32
3.3	16
0.5	2
0.6	32
0.7	40
1.5	32
2.3	28
1.7	22
1.1	36
3.4	18
0.1	34
3.4	18
3.5	14
4.0	16
0.5	34
0.1	40
1.2	28
5.1	4
1.8	34

Margin (C)	Years the old record stood
5.9	87
4.9	87
4.0	87
1.2	107
2.7	92
3.5	86
2.0	91
2.7	91
2.4	87
2.9	87
0.3	80
3.4	86
0.5	115
0.6	114
4.9	80
0.2	118
4.1	75
3.9	80
2.1	87
1.2	91
1.8	87
1.5	87
4.1	72
5.2	70
4.1	80
2.1	87
1.5	86
1.1	87
0.6	91
0.7	92
1.0	88
0.8	87
0.8	86
0.9	87
3.4	72
0.9	86
1.7	80
0.4	87
2.2	72
0.4	86
3.2	72
0.1	87
2.3	72
3.0	72
3.1	72
0.3	80
0.2	87
1.3	83
0.2	86
1.4	80
0.8	84
1.4	72
0.8	83
2.3	72
2.1	67
0.6	83
1.7	72
1.3	72
5.0	44
2.1	72
1.6	72
0.3	83
1.6	72
2.2	72
0.2	20
0.3	11
0.4	80
0.6	72
0.4	68
1.1	72
1.2	72
1.0	72
1.6	67
7.1	46
2.0	68
4.6	44
0.5	68
0.8	72
1.2	67
0.3	67
0.9	72
3.2	44
0.2	64
4.4	48
4.9	32
1.0	68
1.9	51
3.4	44
4.5	44
0.5	70
2.9	44
0.1	60
1.7	54
3.0	44
5.4	32
0.4	68
6.8	24
5.7	14
3.7	44
1.3	44
5.1	32
1.9	20
2.1	44
3.5	40
0.4	1
0.1	29
1.2	44
1.9	44
1.4	44
5.1	18
1.0	20
1.7	44
4.1	31
1.3	44
3.7	39
1.0	55
2.2	39
2.0	44
0.9	44
0.4	54
5.9	12
4.6	18
2.4	0
1.8	44
0.9	44
4.5	18
1.5	50
0.2	54
0.1	20
0.4	48
5.0	24
3.5	32
2.0	40
2.1	32
4.1	32
1.1	48
1.8	36
1.8	46
0.9	46
1.1	38
1.3	44
1.3	44
0.1	48
4.2	16
2.4	32
5.1	18
2.6	16
5.8	14
0.4	44
4.2	12
4.5	28
4.2	12
3.0	18
4.2	18
2.8	32
0.3	44
4.8	18
2.7	28
3.8	18
0.2	11
4.7	4
2.2	34
0.5	44
0.8	46
0.6	44
0.8	44
1.9	32
0.6	35
1.9	16
3.0	16
1.1	30
4.3	18
0.4	11
0.5	34
4.7	4
0.3	40
3.0	16
4.7	4
1.2	40
5.5	4
2.8	20
1.7	32
3.3	16
0.5	2
0.6	32
0.7	40
1.5	32
2.3	28
1.7	22
1.1	36
3.4	18
0.1	34
3.4	18
3.5	14
4.0	16
0.5	34
0.1	40
1.2	28
5.1	4
1.8	34