Heat wave in Russia and Mongolia, 28 April to 13 May 2018

Name: Heat wave in Russia and Mongolia, 28 April to 13 May 2018
Start: 2018-04-28
End: 2018-05-13
Location: Russia, Mongolia

Heat wave in Russia and Mongolia, 28 April to 13 May 2018: 254 records at 146 stations, peak on 1 May 2018. Closed.

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

Key Facts

Heat wave in Russia and Mongolia, 28 April to 13 May 2018 set or tied 254 station records at 146 stations.
It ran from 28 April 2018 to 13 May 2018 (16 days) and its peak day was 1 May 2018.
Status: closed.
Ulan-Ude set a daily record high minimum temperature of 10.7 C (51.3 F) on 3 May 2018.
The busiest day was 1 May 2018 with 33 records.
The oldest broken record in the ranked list had stood for 115 years.

Footprint

28 April to 13 May 2018

The area covered by Heat wave in Russia and Mongolia, 28 April to 13 May 2018 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.

Footprint of Heat wave in Russia and Mongolia, 28 April to 13 May 2018: stations that set records in the event
Station	Type	Value	Date
Ulan-Ude	Record high minimum temperature	10.7 C (51.3 F)	2018-05-03
Barguzin	Record high minimum temperature	7.6 C (45.7 F)	2018-05-03
Chita	Record high minimum temperature	11.7 C (53.1 F)	2018-05-08
Dzhikimda	Record high maximum temperature	24.0 C (75.2 F)	2018-05-04
Troickij Priisk	Record high minimum temperature	5.8 C (42.4 F)	2018-05-08
Romanovka	Record high minimum temperature	8.0 C (46.4 F)	2018-05-08
Erbogacen	Record high minimum temperature	7.7 C (45.9 F)	2018-05-02
Vitim	Record high minimum temperature	5.5 C (41.9 F)	2018-05-03
Aldan	Record high minimum temperature	5.3 C (41.5 F)	2018-05-05
Orlinga	Record high maximum temperature	24.9 C (76.8 F)	2018-05-02
Enisejsk	Record high minimum temperature	9.1 C (48.4 F)	2018-05-01
Lensk	Record high minimum temperature	5.2 C (41.4 F)	2018-05-02
Uchur	Record high maximum temperature	23.3 C (73.9 F)	2018-05-05
Sosnovo-Ozerskoe	Record high minimum temperature	4.2 C (39.6 F)	2018-05-08
Nelkan	Record high maximum temperature	19.6 C (67.3 F)	2018-05-04
Moskalvo	Record high minimum temperature	4.2 C (39.6 F)	2018-05-10
Krasnojarsk	Record high maximum temperature	25.5 C (77.9 F)	2018-05-01
Strelka Chunja	Record high minimum temperature	3.5 C (38.3 F)	2018-05-02
Vanavara	Record high minimum temperature	5.6 C (42.1 F)	2018-05-02
Culman	Record high maximum temperature	18.0 C (64.4 F)	2018-05-04

Records per Day

Peak day 33

Records set or tied each day from 28 April 2018 to 13 May 2018. The most in one day was 33 on 1 May 2018.

Records per day during Heat wave in Russia and Mongolia, 28 April to 13 May 2018
Date	Records
2018-04-28	1
2018-04-30	16
2018-05-01	33
2018-05-02	32
2018-05-03	30
2018-05-04	24
2018-05-05	24
2018-05-06	8
2018-05-07	18
2018-05-08	30
2018-05-09	19
2018-05-10	16
2018-05-11	2
2018-05-13	1

Top Records by Margin

Margin over the record replaced

Top records of Heat wave in Russia and Mongolia, 28 April to 13 May 2018 ranked by margin
Dzhikimda, 05-04	5.8 C (10.4 F)
Troickij Priisk, 05-08	5.2 C (9.4 F)
Krasnojarsk, 05-01	5.1 C (9.2 F)
Ulan-Ude, 05-03	3.2 C (5.8 F)
Erbogacen, 05-02	2.7 C (4.9 F)
Moskalvo, 05-10	2.5 C (4.5 F)
Romanovka, 05-08	2.4 C (4.3 F)
Vitim, 05-03	2.4 C (4.3 F)
Lensk, 05-02	2.3 C (4.1 F)
Barguzin, 05-03	2.1 C (3.8 F)
Aldan, 05-05	1.8 C (3.2 F)
Uchur, 05-05	1.7 C (3.1 F)
Nelkan, 05-04	1.7 C (3.1 F)
Vanavara, 05-02	1.7 C (3.1 F)
Enisejsk, 05-01	1.5 C (2.7 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

254 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 Mongolia, 28 April to 13 May 2018
Margin (C)	Years the old record stood
3.2	103
2.1	99
0.6	115
5.8	75
5.2	68
2.4	80
2.7	75
2.4	71
1.8	79
0.9	84
2.3	71
1.5	68
0.7	80
1.7	79
1.7	75
2.5	51
0.7	75
1.7	68
5.1	51
0.8	75
0.8	75
6.8	32
1.1	75
0.3	72
2.4	56
1.8	64
0.1	75
0.8	67
0.5	71
1.6	61
0.3	60
7.3	33
3.0	52
0.4	68
1.5	51
4.1	40
1.1	51
3.5	51
0.2	60
2.4	48
1.8	51
0.1	56
0.8	45
3.2	40
3.3	36
1.6	51
0.7	51
0.7	51
3.7	32
0.7	52
1.3	49
1.9	51
4.0	33
2.7	24
1.7	35
1.1	48
3.2	33
2.3	32
2.9	33
3.5	32
3.5	33
2.0	33
0.6	52
0.9	40
4.0	16
1.1	41
1.6	40
1.6	33
5.0	20
1.9	32
2.1	33
2.8	32
1.7	33
2.6	32
2.6	33
1.1	40
4.6	4
1.9	17
1.3	40
2.1	32
2.5	27
5.7	20
4.2	20
2.2	33
1.4	32
1.3	39
0.2	39
0.1	40
0.7	40
0.1	40
3.9	24
2.0	24
4.1	24
2.5	35
0.1	35
1.5	32
1.1	33
3.2	20
0.8	32
0.5	32
4.1	16
0.8	39
1.5	24
2.3	25
0.4	33
2.4	12
0.7	33
1.7	27
1.4	33
1.3	32
1.1	32
0.1	37
0.6	20
0.7	32
0.9	32
0.1	31
0.1	39
0.1	33
6.0	4
0.9	32
2.7	19
0.9	32
3.3	5
0.5	27
0.4	35
0.3	36
0.2	20
1.8	16
1.6	16
0.2	32
2.7	8
2.3	16
2.1	16
3.9	4
2.8	12
0.5	27
1.0	27
1.4	27
1.5	21
0.5	32
0.1	32
3.0	4
3.3	12
0.9	23
0.2	28
0.5	32
2.7	12
1.2	8
2.6	12
1.4	24
0.4	24
4.0	20
2.3	12
3.2	4
0.6	28
1.7	16
1.3	29
0.5	20
1.2	19
3.7	12
1.3	4
0.3	11
1.8	7
0.7	16
0.1	20
3.2	4
3.9	4
1.8	4
2.8	4
1.9	4
2.2	20
1.2	13
0.4	20
1.5	20
1.1	8
1.8	12
1.8	12
1.6	12
3.5	11
0.8	7
0.8	4
2.4	4
1.5	12
3.5	4
1.9	1
4.2	1
0.5	16
0.8	13
0.1	20
0.2	16
0.1	24
1.4	12
2.1	4
1.3	11
1.3	4
1.0	8
1.8	7
2.4	4
2.8	4
2.8	4

Compared With Other Events

Station records per event

Station records in Heat wave in Russia and Mongolia, 28 April to 13 May 2018 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 Mongolia, 28 April to 13 May 2018 (this event)	254 records

Every Record Set

20 of 254

Every record set or tied during Heat wave in Russia and Mongolia, 28 April to 13 May 2018, in date order
Date	Station	Record	Value	Margin	Years stood	Significance
2018-05-01	Enisejsk	Record high minimum temperature	9.1 C (48.4 F)	1.5 C (2.7 F)	68	33 of 100 (Routine)
2018-05-01	Krasnojarsk	Record high maximum temperature	25.5 C (77.9 F)	5.1 C (9.2 F)	51	31 of 100 (Routine)
2018-05-02	Erbogacen	Record high minimum temperature	7.7 C (45.9 F)	2.7 C (4.9 F)	75	35 of 100 (Notable)
2018-05-02	Orlinga	Record high maximum temperature	24.9 C (76.8 F)	0.9 C (1.6 F)	84	34 of 100 (Routine)
2018-05-02	Lensk	Record high minimum temperature	5.2 C (41.4 F)	2.3 C (4.1 F)	71	33 of 100 (Routine)
2018-05-02	Strelka Chunja	Record high minimum temperature	3.5 C (38.3 F)	0.7 C (1.3 F)	75	31 of 100 (Routine)
2018-05-02	Vanavara	Record high minimum temperature	5.6 C (42.1 F)	1.7 C (3.1 F)	68	31 of 100 (Routine)
2018-05-03	Ulan-Ude	Record high minimum temperature	10.7 C (51.3 F)	3.2 C (5.8 F)	103	47 of 100 (Notable)
2018-05-03	Barguzin	Record high minimum temperature	7.6 C (45.7 F)	2.1 C (3.8 F)	99	44 of 100 (Notable)
2018-05-03	Vitim	Record high minimum temperature	5.5 C (41.9 F)	2.4 C (4.3 F)	71	35 of 100 (Notable)
2018-05-04	Dzhikimda	Record high maximum temperature	24.0 C (75.2 F)	5.8 C (10.4 F)	75	39 of 100 (Notable)
2018-05-04	Nelkan	Record high maximum temperature	19.6 C (67.3 F)	1.7 C (3.1 F)	75	32 of 100 (Routine)
2018-05-04	Culman	Record high maximum temperature	18.0 C (64.4 F)	0.8 C (1.4 F)	75	31 of 100 (Routine)
2018-05-05	Aldan	Record high minimum temperature	5.3 C (41.5 F)	1.8 C (3.2 F)	79	35 of 100 (Notable)
2018-05-05	Uchur	Record high maximum temperature	23.3 C (73.9 F)	1.7 C (3.1 F)	79	33 of 100 (Routine)
2018-05-08	Chita	Record high minimum temperature	11.7 C (53.1 F)	0.6 C (1.1 F)	115	41 of 100 (Notable)
2018-05-08	Troickij Priisk	Record high minimum temperature	5.8 C (42.4 F)	5.2 C (9.4 F)	68	38 of 100 (Notable)
2018-05-08	Romanovka	Record high minimum temperature	8.0 C (46.4 F)	2.4 C (4.3 F)	80	37 of 100 (Notable)
2018-05-08	Sosnovo-Ozerskoe	Record high minimum temperature	4.2 C (39.6 F)	0.7 C (1.3 F)	80	33 of 100 (Routine)
2018-05-10	Moskalvo	Record high minimum temperature	4.2 C (39.6 F)	2.5 C (4.5 F)	51	32 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 254 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
3.2	103
2.1	99
0.6	115
5.8	75
5.2	68
2.4	80
2.7	75
2.4	71
1.8	79
0.9	84
2.3	71
1.5	68
0.7	80
1.7	79
1.7	75
2.5	51
0.7	75
1.7	68
5.1	51
0.8	75
0.8	75
6.8	32
1.1	75
0.3	72
2.4	56
1.8	64
0.1	75
0.8	67
0.5	71
1.6	61
0.3	60
7.3	33
3.0	52
0.4	68
1.5	51
4.1	40
1.1	51
3.5	51
0.2	60
2.4	48
1.8	51
0.1	56
0.8	45
3.2	40
3.3	36
1.6	51
0.7	51
0.7	51
3.7	32
0.7	52
1.3	49
1.9	51
4.0	33
2.7	24
1.7	35
1.1	48
3.2	33
2.3	32
2.9	33
3.5	32
3.5	33
2.0	33
0.6	52
0.9	40
4.0	16
1.1	41
1.6	40
1.6	33
5.0	20
1.9	32
2.1	33
2.8	32
1.7	33
2.6	32
2.6	33
1.1	40
4.6	4
1.9	17
1.3	40
2.1	32
2.5	27
5.7	20
4.2	20
2.2	33
1.4	32
1.3	39
0.2	39
0.1	40
0.7	40
0.1	40
3.9	24
2.0	24
4.1	24
2.5	35
0.1	35
1.5	32
1.1	33
3.2	20
0.8	32
0.5	32
4.1	16
0.8	39
1.5	24
2.3	25
0.4	33
2.4	12
0.7	33
1.7	27
1.4	33
1.3	32
1.1	32
0.1	37
0.6	20
0.7	32
0.9	32
0.1	31
0.1	39
0.1	33
6.0	4
0.9	32
2.7	19
0.9	32
3.3	5
0.5	27
0.4	35
0.3	36
0.2	20
1.8	16
1.6	16
0.2	32
2.7	8
2.3	16
2.1	16
3.9	4
2.8	12
0.5	27
1.0	27
1.4	27
1.5	21
0.5	32
0.1	32
3.0	4
3.3	12
0.9	23
0.2	28
0.5	32
2.7	12
1.2	8
2.6	12
1.4	24
0.4	24
4.0	20
2.3	12
3.2	4
0.6	28
1.7	16
1.3	29
0.5	20
1.2	19
3.7	12
1.3	4
0.3	11
1.8	7
0.7	16
0.1	20
3.2	4
3.9	4
1.8	4
2.8	4
1.9	4
2.2	20
1.2	13
0.4	20
1.5	20
1.1	8
1.8	12
1.8	12
1.6	12
3.5	11
0.8	7
0.8	4
2.4	4
1.5	12
3.5	4
1.9	1
4.2	1
0.5	16
0.8	13
0.1	20
0.2	16
0.1	24
1.4	12
2.1	4
1.3	11
1.3	4
1.0	8
1.8	7
2.4	4
2.8	4
2.8	4

Margin (C)	Years the old record stood
3.2	103
2.1	99
0.6	115
5.8	75
5.2	68
2.4	80
2.7	75
2.4	71
1.8	79
0.9	84
2.3	71
1.5	68
0.7	80
1.7	79
1.7	75
2.5	51
0.7	75
1.7	68
5.1	51
0.8	75
0.8	75
6.8	32
1.1	75
0.3	72
2.4	56
1.8	64
0.1	75
0.8	67
0.5	71
1.6	61
0.3	60
7.3	33
3.0	52
0.4	68
1.5	51
4.1	40
1.1	51
3.5	51
0.2	60
2.4	48
1.8	51
0.1	56
0.8	45
3.2	40
3.3	36
1.6	51
0.7	51
0.7	51
3.7	32
0.7	52
1.3	49
1.9	51
4.0	33
2.7	24
1.7	35
1.1	48
3.2	33
2.3	32
2.9	33
3.5	32
3.5	33
2.0	33
0.6	52
0.9	40
4.0	16
1.1	41
1.6	40
1.6	33
5.0	20
1.9	32
2.1	33
2.8	32
1.7	33
2.6	32
2.6	33
1.1	40
4.6	4
1.9	17
1.3	40
2.1	32
2.5	27
5.7	20
4.2	20
2.2	33
1.4	32
1.3	39
0.2	39
0.1	40
0.7	40
0.1	40
3.9	24
2.0	24
4.1	24
2.5	35
0.1	35
1.5	32
1.1	33
3.2	20
0.8	32
0.5	32
4.1	16
0.8	39
1.5	24
2.3	25
0.4	33
2.4	12
0.7	33
1.7	27
1.4	33
1.3	32
1.1	32
0.1	37
0.6	20
0.7	32
0.9	32
0.1	31
0.1	39
0.1	33
6.0	4
0.9	32
2.7	19
0.9	32
3.3	5
0.5	27
0.4	35
0.3	36
0.2	20
1.8	16
1.6	16
0.2	32
2.7	8
2.3	16
2.1	16
3.9	4
2.8	12
0.5	27
1.0	27
1.4	27
1.5	21
0.5	32
0.1	32
3.0	4
3.3	12
0.9	23
0.2	28
0.5	32
2.7	12
1.2	8
2.6	12
1.4	24
0.4	24
4.0	20
2.3	12
3.2	4
0.6	28
1.7	16
1.3	29
0.5	20
1.2	19
3.7	12
1.3	4
0.3	11
1.8	7
0.7	16
0.1	20
3.2	4
3.9	4
1.8	4
2.8	4
1.9	4
2.2	20
1.2	13
0.4	20
1.5	20
1.1	8
1.8	12
1.8	12
1.6	12
3.5	11
0.8	7
0.8	4
2.4	4
1.5	12
3.5	4
1.9	1
4.2	1
0.5	16
0.8	13
0.1	20
0.2	16
0.1	24
1.4	12
2.1	4
1.3	11
1.3	4
1.0	8
1.8	7
2.4	4
2.8	4
2.8	4