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Built 2026-10-19 (19 October 2026)

Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021

Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021: 154 records at 110 stations, peak on 21 September 2021. Closed.

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

Key Facts

  • Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 set or tied 154 station records at 110 stations.
  • It ran from 16 September 2021 to 25 September 2021 (10 days) and its peak day was 21 September 2021.
  • Status: closed.
  • Baia Mare set a daily record low maximum temperature of 10.8 C (51.4 F) on 22 September 2021.
  • The busiest day was 21 September 2021 with 45 records.
  • The oldest broken record in the ranked list had stood for 119 years.

Footprint

16 to 25 September 2021
Footprint of Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 The area covered by Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 is outlined, with 17 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021: stations that set records in the event
StationTypeValueDate
Baia MareRecord low maximum temperature10.8 C (51.4 F)2021-09-22
KisinevRecord low maximum temperature10.9 C (51.6 F)2021-09-23
VilniusRecord low maximum temperature6.8 C (44.2 F)2021-09-21
Visby_FlygplatsRecord low minimum temperature-1.1 C (30.0 F)2021-09-21
Krasnaja_GoraRecord low maximum temperature7.9 C (46.2 F)2021-09-23
Velikie LukiRecord low maximum temperature5.7 C (42.3 F)2021-09-20
AradRecord low maximum temperature13.7 C (56.7 F)2021-09-22
VoruRecord low maximum temperature6.0 C (42.8 F)2021-09-21
SulinaRecord low minimum temperature8.7 C (47.7 F)2021-09-23
ShepetivkaRecord low maximum temperature8.3 C (46.9 F)2021-09-20
MedvezegorskRecord low minimum temperature-3.2 C (26.2 F)2021-09-23
HolmRecord low maximum temperature6.1 C (43.0 F)2021-09-20
BrestRecord low maximum temperature9.1 C (48.4 F)2021-09-22
Volodymyr-VolynskyiRecord low maximum temperature8.2 C (46.8 F)2021-09-19
VitebskRecord low maximum temperature6.3 C (43.3 F)2021-09-20
VozegaRecord low minimum temperature-3.9 C (25.0 F)2021-09-21
Ocna SugatagRecord low maximum temperature9.0 C (48.2 F)2021-09-22

Records per Day

Peak day 45
Records per day during Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 Records set or tied each day from 16 September 2021 to 25 September 2021. The most in one day was 45 on 21 September 2021. 0 13 25 38 50 09-1609-1709-1809-1909-2009-2109-2209-2309-2409-25
Records set or tied each day from 16 September 2021 to 25 September 2021. The most in one day was 45 on 21 September 2021.
Records per day during Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021
DateRecords
2021-09-161
2021-09-172
2021-09-186
2021-09-1917
2021-09-2023
2021-09-2145
2021-09-2232
2021-09-2321
2021-09-246
2021-09-251

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 ranked by margin
Volodymyr-Volynskyi, 09-192.8 C (5.0 F)
Baia Mare, 09-222.2 C (4.0 F)
Vozega, 09-211.9 C (3.4 F)
Holm, 09-201.7 C (3.1 F)
Velikie Luki, 09-201.5 C (2.7 F)
Voru, 09-211.5 C (2.7 F)
Vilnius, 09-191.5 C (2.7 F)
Vitebsk, 09-201.5 C (2.7 F)
Medvezegorsk, 09-231.0 C (1.8 F)
Shepetivka, 09-201.0 C (1.8 F)
Sulina, 09-230.9 C (1.6 F)
Brest, 09-220.8 C (1.4 F)
Ocna Sugatag, 09-220.8 C (1.4 F)
Kisinev, 09-230.7 C (1.3 F)
Krasnaja_Gora, 09-230.7 C (1.3 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 Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 154 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 30 60 90 120 0.01.53.04.56.0 Margin (C) Years the old record stood
154 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 Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021
Margin (C)Years the old record stood
2.295
0.7106
0.2119
0.1119
0.770
0.756
1.552
1.552
0.960
1.056
1.050
0.856
1.543
1.752
1.552
0.252
0.859
1.944
0.648
2.844
3.243
3.343
1.644
1.644
0.244
1.152
1.352
0.156
0.256
0.751
0.848
0.456
1.844
1.148
0.752
2.343
1.244
0.548
3.124
0.946
0.540
1.443
2.040
3.924
1.044
1.443
4.124
3.524
1.243
0.344
0.844
0.148
0.730
0.144
0.544
0.643
0.843
1.244
1.234
0.843
0.640
0.140
0.143
2.824
2.324
2.224
2.624
0.143
0.340
0.644
0.140
2.920
2.224
1.828
1.034
0.540
5.48
1.027
1.924
1.824
2.324
1.624
1.926
0.924
1.424
1.520
2.424
0.435
0.128
1.424
1.224
2.020
0.132
0.532
0.727
0.624
0.724
1.231
0.324
3.04
1.424
1.024
0.720
2.312
0.819
0.519
3.012
0.624
0.524
1.58
0.924
0.124
0.522
1.019
0.622
1.520
0.820
0.124
0.520
0.527
1.719
0.219
0.324
1.08
1.111
2.88
0.619
0.220
1.019
0.519
0.512
0.324
0.120
0.115
0.219
0.219
0.119
1.412
0.720
0.119
0.315
1.712
0.312
0.84
1.08
0.98
0.92
0.219
0.84
0.34
1.02
0.37
0.64
0.22

Compared With Other Events

Station records per event
Station records in Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 compared with similar events
Cold outbreak in United States and Mexico, 6 February to 5 March 202112,118 records
Cold outbreak in United States and Mexico, 13 October to 5 November 20209,841 records
Cold outbreak in United States and Mexico, 23 December 2017 to 8 January 20188,263 records
Cold outbreak in United States and Mexico, 3 to 23 January 20247,675 records
Cold outbreak in United States, 15 January to 10 February 20265,568 records
Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021 (this event)154 records

Every Record Set

20 of 154
Every record set or tied during Cold outbreak in Ukraine and 15 other countries, 16 to 25 September 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-09-17Krasnaja_GoraRecord low maximum temperature8.6 C (47.5 F)0.6 C (1.1 F)4824 of 100 (Routine)
2021-09-19VilniusRecord low maximum temperature7.0 C (44.6 F)1.5 C (2.7 F)4325 of 100 (Routine)
2021-09-19Volodymyr-VolynskyiRecord low maximum temperature8.2 C (46.8 F)2.8 C (5.0 F)4424 of 100 (Routine)
2021-09-20Velikie LukiRecord low maximum temperature5.7 C (42.3 F)1.5 C (2.7 F)5228 of 100 (Routine)
2021-09-20ShepetivkaRecord low maximum temperature8.3 C (46.9 F)1.0 C (1.8 F)5026 of 100 (Routine)
2021-09-20HolmRecord low maximum temperature6.1 C (43.0 F)1.7 C (3.1 F)5225 of 100 (Routine)
2021-09-20VitebskRecord low maximum temperature6.3 C (43.3 F)1.5 C (2.7 F)5224 of 100 (Routine)
2021-09-20VoruRecord low maximum temperature6.7 C (44.1 F)0.2 C (0.4 F)5224 of 100 (Routine)
2021-09-21VilniusRecord low maximum temperature6.8 C (44.2 F)0.2 C (0.4 F)11940 of 100 (Notable)
2021-09-21Visby_FlygplatsRecord low minimum temperature-1.1 C (30.0 F)0.1 C (0.2 F)11940 of 100 (Notable)
2021-09-21VoruRecord low maximum temperature6.0 C (42.8 F)1.5 C (2.7 F)5227 of 100 (Routine)
2021-09-21VozegaRecord low minimum temperature-3.9 C (25.0 F)1.9 C (3.4 F)4424 of 100 (Routine)
2021-09-22Baia MareRecord low maximum temperature10.8 C (51.4 F)2.2 C (4.0 F)9542 of 100 (Notable)
2021-09-22AradRecord low maximum temperature13.7 C (56.7 F)0.7 C (1.3 F)5628 of 100 (Routine)
2021-09-22BrestRecord low maximum temperature9.1 C (48.4 F)0.8 C (1.4 F)5625 of 100 (Routine)
2021-09-22Ocna SugatagRecord low maximum temperature9.0 C (48.2 F)0.8 C (1.4 F)5924 of 100 (Routine)
2021-09-23KisinevRecord low maximum temperature10.9 C (51.6 F)0.7 C (1.3 F)10641 of 100 (Notable)
2021-09-23Krasnaja_GoraRecord low maximum temperature7.9 C (46.2 F)0.7 C (1.3 F)7031 of 100 (Routine)
2021-09-23SulinaRecord low minimum temperature8.7 C (47.7 F)0.9 C (1.6 F)6027 of 100 (Routine)
2021-09-23MedvezegorskRecord low minimum temperature-3.2 C (26.2 F)1.0 C (1.8 F)5626 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 154 records the event counts. The counts above use the full total.

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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.