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

Cold outbreak in United States, 5 to 27 October 2021

Cold outbreak in United States, 5 to 27 October 2021: 1,619 records at 949 stations, peak on 13 October 2021. Closed.

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

Key Facts

  • Cold outbreak in United States, 5 to 27 October 2021 set or tied 1,619 station records at 949 stations.
  • It ran from 5 October 2021 to 27 October 2021 (23 days) and its peak day was 13 October 2021.
  • Status: closed.
  • Colusa 2 SSW set a monthly record low minimum temperature of -6.7 C (19.9 F) on 15 October 2021.
  • The busiest day was 13 October 2021 with 498 records.
  • The oldest broken record in the ranked list had stood for 126 years.

Footprint

5 to 27 October 2021
Footprint of Cold outbreak in United States, 5 to 27 October 2021 The area covered by Cold outbreak in United States, 5 to 27 October 2021 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United States, 5 to 27 October 2021 is outlined, with 20 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in United States, 5 to 27 October 2021: stations that set records in the event
StationTypeValueDate
Colusa 2 SSWRecord low minimum temperature-6.7 C (19.9 F)2021-10-15
NorthdaleRecord low maximum temperature-0.6 C (30.9 F)2021-10-13
PanguitchRecord low maximum temperature3.3 C (37.9 F)2021-10-13
Utah Lake LehiRecord low maximum temperature7.8 C (46.0 F)2021-10-13
ArcoRecord low maximum temperature2.8 C (37.0 F)2021-10-07
Zion NpRecord low maximum temperature8.3 C (46.9 F)2021-10-13
MantiRecord low maximum temperature5.0 C (41.0 F)2021-10-14
AberdeenRecord low maximum temperature8.9 C (48.0 F)2021-10-13
FillmoreRecord low maximum temperature3.9 C (39.0 F)2021-10-14
MercedRecord low maximum temperature16.7 C (62.1 F)2021-10-22
OjaiRecord low maximum temperature15.6 C (60.1 F)2021-10-26
StanleyRecord low maximum temperature0.0 C (32.0 F)2021-10-13
Missoula 6 NW WFORecord low minimum temperature-6.1 C (21.0 F)2021-10-13
BremertonRecord low minimum temperature-0.6 C (30.9 F)2021-10-13
Julian CdfRecord low minimum temperature-1.1 C (30.0 F)2021-10-19
Cimarron 4 SWRecord low minimum temperature-10.6 C (12.9 F)2021-10-20
LindsayRecord low maximum temperature16.1 C (61.0 F)2021-10-26
PortolaRecord low maximum temperature4.4 C (39.9 F)2021-10-12
Gila Bend 2SERecord low maximum temperature22.2 C (72.0 F)2021-10-13
Turlock #2Record low maximum temperature17.2 C (63.0 F)2021-10-18

Records per Day

Peak day 498
Records per day during Cold outbreak in United States, 5 to 27 October 2021 Records set or tied each day from 5 October 2021 to 27 October 2021. The most in one day was 498 on 13 October 2021. 0 125 250 375 500 10-0510-0810-1110-1410-1710-2010-2310-26
Records set or tied each day from 5 October 2021 to 27 October 2021. The most in one day was 498 on 13 October 2021.
Records per day during Cold outbreak in United States, 5 to 27 October 2021
DateRecords
2021-10-052
2021-10-067
2021-10-0718
2021-10-0856
2021-10-0928
2021-10-106
2021-10-1143
2021-10-12286
2021-10-13498
2021-10-14274
2021-10-1596
2021-10-1617
2021-10-1722
2021-10-18102
2021-10-1980
2021-10-2026
2021-10-219
2021-10-223
2021-10-237
2021-10-248
2021-10-2517
2021-10-2611
2021-10-273

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United States, 5 to 27 October 2021 ranked by margin
Northdale, 10-1310.6 C (19.1 F)
Colusa 2 SSW, 10-156.1 C (11.0 F)
Panguitch, 10-135.6 C (10.1 F)
Arco, 10-074.4 C (7.9 F)
Utah Lake Lehi, 10-133.9 C (7.0 F)
Fillmore, 10-143.9 C (7.0 F)
Zion Np, 10-133.4 C (6.1 F)
Manti, 10-142.2 C (4.0 F)
Gila Bend 2SE, 10-132.2 C (4.0 F)
Stanley, 10-131.7 C (3.1 F)
Merced, 10-221.6 C (2.9 F)
Ojai, 10-261.6 C (2.9 F)
Cimarron 4 SW, 10-201.2 C (2.2 F)
Portola, 10-121.2 C (2.2 F)
Aberdeen, 10-131.1 C (2.0 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 United States, 5 to 27 October 2021 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. 0 38 75 113 150 0.03.06.09.012.0 Margin (C) Years the old record stood
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 Cold outbreak in United States, 5 to 27 October 2021
Margin (C)Years the old record stood
6.171
10.679
5.696
3.9108
4.496
2.2121
3.496
1.6104
1.6110
3.992
1.1104
1.1126
1.1102
1.7100
1.1126
1.2104
0.6121
2.292
1.296
1.196
1.1112
1.1123
0.6112
0.5121
0.5122
1.799
0.6100
1.191
1.292
0.5121
1.792
3.374
0.596
1.692
1.691
1.192
6.667
0.692
0.692
0.692
0.692
0.691
2.279
5.060
1.187
1.182
2.860
1.192
0.691
1.775
0.588
3.367
5.060
1.780
4.460
2.175
2.270
7.324
1.672
1.174
6.755
5.636
0.676
1.772
7.840
2.268
2.260
2.864
1.170
1.172
1.175
0.574
0.579
1.172
3.360
0.679
0.679
0.572
1.171
1.174
0.572
3.355
3.355
0.572
5.540
1.670
1.172
1.172
2.660
0.564
1.764
4.555
1.664
0.664
2.855
0.675
2.252
4.436
3.346
2.852
0.672
1.654
4.552
0.664
3.354
2.848
1.751
1.750
2.260
2.855
2.755
3.840
3.940
2.252
2.252
2.252
0.564
2.852
3.340
1.160
1.652
0.555
1.150
2.844
2.352
1.152
4.536
1.152
0.655
2.855
2.750
1.752
1.655
0.666
0.664
0.560
3.951
0.652
0.658
1.258
2.250
0.564
6.112
0.552
5.040
1.752
1.755
1.752
0.555
2.855
1.150
1.152
8.924
7.724
1.155
3.924
3.432
0.560
0.552
1.159
0.548
1.146
2.835
3.927
0.552
1.154
0.555
1.152
5.039
0.651
0.552
6.235
2.346
3.920
1.736
2.740
1.240
1.152
6.628
1.736
1.640
0.552
1.140
1.140
2.346
0.652
0.652
2.235
1.152
0.555
1.155
0.652
1.052
1.146
2.824
1.152
1.140
2.727
1.151
1.252

Compared With Other Events

Station records per event
Station records in Cold outbreak in United States, 5 to 27 October 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 United States, 5 to 27 October 2021 (this event)1,619 records

Every Record Set

20 of 1,619
Every record set or tied during Cold outbreak in United States, 5 to 27 October 2021, in date order
DateStationRecordValueMarginYears stoodSignificance
2021-10-07ArcoRecord low maximum temperature2.8 C (37.0 F)4.4 C (7.9 F)9645 of 100 (Notable)
2021-10-12PortolaRecord low maximum temperature4.4 C (39.9 F)1.2 C (2.2 F)9641 of 100 (Notable)
2021-10-13NorthdaleRecord low maximum temperature-0.6 C (30.9 F)10.6 C (19.1 F)7952 of 100 (Notable)
2021-10-13PanguitchRecord low maximum temperature3.3 C (37.9 F)5.6 C (10.1 F)9648 of 100 (Notable)
2021-10-13Utah Lake LehiRecord low maximum temperature7.8 C (46.0 F)3.9 C (7.0 F)10847 of 100 (Notable)
2021-10-13Zion NpRecord low maximum temperature8.3 C (46.9 F)3.4 C (6.1 F)9644 of 100 (Notable)
2021-10-13AberdeenRecord low maximum temperature8.9 C (48.0 F)1.1 C (2.0 F)10443 of 100 (Notable)
2021-10-13StanleyRecord low maximum temperature0.0 C (32.0 F)1.7 C (3.1 F)10042 of 100 (Notable)
2021-10-13Missoula 6 NW WFORecord low minimum temperature-6.1 C (21.0 F)1.1 C (2.0 F)12642 of 100 (Notable)
2021-10-13BremertonRecord low minimum temperature-0.6 C (30.9 F)0.6 C (1.1 F)12142 of 100 (Notable)
2021-10-13Gila Bend 2SERecord low maximum temperature22.2 C (72.0 F)2.2 C (4.0 F)9241 of 100 (Notable)
2021-10-14MantiRecord low maximum temperature5.0 C (41.0 F)2.2 C (4.0 F)12144 of 100 (Notable)
2021-10-14FillmoreRecord low maximum temperature3.9 C (39.0 F)3.9 C (7.0 F)9243 of 100 (Notable)
2021-10-15Colusa 2 SSWRecord low minimum temperature-6.7 C (19.9 F)6.1 C (11.0 F)7158 of 100 (Notable)
2021-10-18Turlock #2Record low maximum temperature17.2 C (63.0 F)1.1 C (2.0 F)9641 of 100 (Notable)
2021-10-19Julian CdfRecord low minimum temperature-1.1 C (30.0 F)1.1 C (2.0 F)12642 of 100 (Notable)
2021-10-20Cimarron 4 SWRecord low minimum temperature-10.6 C (12.9 F)1.2 C (2.2 F)10442 of 100 (Notable)
2021-10-22MercedRecord low maximum temperature16.7 C (62.1 F)1.6 C (2.9 F)10443 of 100 (Notable)
2021-10-26OjaiRecord low maximum temperature15.6 C (60.1 F)1.6 C (2.9 F)11043 of 100 (Notable)
2021-10-26LindsayRecord low maximum temperature16.1 C (61.0 F)1.1 C (2.0 F)10242 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 1,619 records the event counts. The counts above use the full total.

Related Headlines

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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.