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Built 2026-10-19 (19 October 2026)

Cold outbreak in United States, 11 to 16 December 2020

Cold outbreak in United States, 11 to 16 December 2020: 164 records at 131 stations, peak on 13 December 2020. Closed.

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

Key Facts

  • Cold outbreak in United States, 11 to 16 December 2020 set or tied 164 station records at 131 stations.
  • It ran from 11 December 2020 to 16 December 2020 (6 days) and its peak day was 13 December 2020.
  • Status: closed.
  • Bryce Canyon Np Hqrs set a daily record low minimum temperature of -25.0 C (-13.0 F) on 14 December 2020.
  • The busiest day was 13 December 2020 with 91 records.
  • The oldest broken record in the ranked list had stood for 60 years.

Footprint

11 to 16 December 2020
Footprint of Cold outbreak in United States, 11 to 16 December 2020 The area covered by Cold outbreak in United States, 11 to 16 December 2020 is outlined, with 17 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United States, 11 to 16 December 2020 is outlined, with 17 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in United States, 11 to 16 December 2020: stations that set records in the event
StationTypeValueDate
Bryce Canyon Np HqrsRecord low minimum temperature-25.0 C (-13.0 F)2020-12-14
Laramie APRecord low minimum temperature-27.1 C (-16.8 F)2020-12-13
CimarronRecord low maximum temperature-6.1 C (21.0 F)2020-12-13
Antero RsvrRecord low maximum temperature-15.0 C (5.0 F)2020-12-14
Ordway 4 WRecord low minimum temperature-21.7 C (-7.1 F)2020-12-14
Divide PeakRecord low minimum temperature-25.1 C (-13.2 F)2020-12-12
Grizzly PeakRecord low minimum temperature-27.2 C (-17.0 F)2020-12-13
Reese Rvr - Ione 13NERecord low minimum temperature-23.3 C (-9.9 F)2020-12-13
HikoRecord low minimum temperature-10.6 C (12.9 F)2020-12-13
Galena SummitRecord low maximum temperature-13.0 C (8.6 F)2020-12-12
Skull Gulch IdahoRecord low maximum temperature-8.9 C (16.0 F)2020-12-13
El Diente PeakRecord low maximum temperature-8.2 C (17.2 F)2020-12-12
Lindrith 1 WSWRecord low maximum temperature-2.2 C (28.0 F)2020-12-13
La Sal 1SWRecord low minimum temperature-19.4 C (-2.9 F)2020-12-13
Laramie 2NWRecord low minimum temperature-27.8 C (-18.0 F)2020-12-13
Bonanza IdahoRecord low maximum temperature-9.4 C (15.1 F)2020-12-13
Banner SummitRecord low maximum temperature-8.7 C (16.3 F)2020-12-13

Records per Day

Peak day 91
Records per day during Cold outbreak in United States, 11 to 16 December 2020 Records set or tied each day from 11 December 2020 to 16 December 2020. The most in one day was 91 on 13 December 2020. 0 25 50 75 100 12-1112-1212-1312-1412-1512-16
Records set or tied each day from 11 December 2020 to 16 December 2020. The most in one day was 91 on 13 December 2020.
Records per day during Cold outbreak in United States, 11 to 16 December 2020
DateRecords
2020-12-113
2020-12-1254
2020-12-1391
2020-12-1412
2020-12-153
2020-12-161

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United States, 11 to 16 December 2020 ranked by margin
Bryce Canyon Np Hqrs, 12-146.1 C (11.0 F)
Divide Peak, 12-125.7 C (10.3 F)
Ordway 4 W, 12-145.6 C (10.1 F)
Grizzly Peak, 12-135.1 C (9.2 F)
Hiko, 12-133.9 C (7.0 F)
Galena Summit, 12-123.8 C (6.8 F)
El Diente Peak, 12-123.8 C (6.8 F)
Skull Gulch Idaho, 12-133.2 C (5.8 F)
Antero Rsvr, 12-142.8 C (5.0 F)
Laramie 2NW, 12-132.2 C (4.0 F)
Banner Summit, 12-131.8 C (3.2 F)
Antero Rsvr, 12-141.7 C (3.1 F)
Bonanza Idaho, 12-131.7 C (3.1 F)
Reese Rvr - Ione 13NE, 12-131.6 C (2.9 F)
La Sal 1SW, 12-131.6 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

Margin against age of the broken record in Cold outbreak in United States, 11 to 16 December 2020 164 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 15 30 45 60 0.02.04.06.08.0 Margin (C) Years the old record stood
164 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, 11 to 16 December 2020
Margin (C)Years the old record stood
6.159
1.060
2.853
0.559
5.631
1.748
0.653
5.135
5.733
1.648
3.921
3.227
3.828
1.135
1.135
1.635
2.235
3.828
1.730
1.830
2.826
1.733
2.728
2.827
2.728
2.030
1.633
2.228
0.535
0.535
1.130
1.130
1.828
0.935
1.528
2.127
1.128
2.219
5.62
0.533
0.631
0.135
1.128
0.633
0.530
0.535
0.633
0.631
1.628
2.819
2.820
2.719
2.720
0.833
0.830
1.328
1.230
0.830
1.431
1.719
2.319
0.528
1.128
2.219
0.531
1.723
0.533
2.219
1.123
0.628
1.228
0.828
0.628
1.823
0.333
0.333
2.519
1.820
1.129
0.728
1.228
0.828
1.028
0.131
0.330
0.330
0.130
0.330
0.528
0.230
1.028
0.528
1.621
1.719
1.120
0.526
1.123
0.128
0.428
0.228
2.019
2.513
1.420
2.019
0.527
0.627
0.528
0.628
1.719
0.626
1.020
1.419
0.329
1.619
0.623
1.713
5.02
1.119
1.119
0.523
1.419
0.426
2.113
0.823
0.226
1.119
1.112
2.212
0.519
1.119
0.619
0.423
1.019
0.320
0.120
0.219
0.119
0.319
2.013
0.219
1.313
0.815
0.119
0.119
0.415
1.74
0.513
0.613
0.613
1.013
1.94
0.612
0.613
1.17
0.413
1.34
0.57
1.32
0.84
1.32
0.34
0.14
0.52
0.12

Compared With Other Events

Station records per event
Station records in Cold outbreak in United States, 11 to 16 December 2020 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, 11 to 16 December 2020 (this event)164 records

Every Record Set

20 of 164
Every record set or tied during Cold outbreak in United States, 11 to 16 December 2020, in date order
DateStationRecordValueMarginYears stoodSignificance
2020-12-12Divide PeakRecord low minimum temperature-25.1 C (-13.2 F)5.7 C (10.3 F)3322 of 100 (Routine)
2020-12-12Galena SummitRecord low maximum temperature-13.0 C (8.6 F)3.8 C (6.8 F)2818 of 100 (Routine)
2020-12-12El Diente PeakRecord low maximum temperature-8.2 C (17.2 F)3.8 C (6.8 F)2817 of 100 (Routine)
2020-12-13Laramie APRecord low minimum temperature-27.1 C (-16.8 F)1.0 C (1.8 F)6026 of 100 (Routine)
2020-12-13CimarronRecord low maximum temperature-6.1 C (21.0 F)0.5 C (0.9 F)5925 of 100 (Routine)
2020-12-13Bryce Canyon Np HqrsRecord low minimum temperature-25.0 C (-13.0 F)0.6 C (1.1 F)5322 of 100 (Routine)
2020-12-13Grizzly PeakRecord low minimum temperature-27.2 C (-17.0 F)5.1 C (9.2 F)3522 of 100 (Routine)
2020-12-13Reese Rvr - Ione 13NERecord low minimum temperature-23.3 C (-9.9 F)1.6 C (2.9 F)4820 of 100 (Routine)
2020-12-13HikoRecord low minimum temperature-10.6 C (12.9 F)3.9 C (7.0 F)2119 of 100 (Routine)
2020-12-13Skull Gulch IdahoRecord low maximum temperature-8.9 C (16.0 F)3.2 C (5.8 F)2718 of 100 (Routine)
2020-12-13Lindrith 1 WSWRecord low maximum temperature-2.2 C (28.0 F)1.1 C (2.0 F)3517 of 100 (Routine)
2020-12-13Lindrith 1 WSWRecord low minimum temperature-17.2 C (1.0 F)1.1 C (2.0 F)3517 of 100 (Routine)
2020-12-13La Sal 1SWRecord low minimum temperature-19.4 C (-2.9 F)1.6 C (2.9 F)3517 of 100 (Routine)
2020-12-13Laramie 2NWRecord low minimum temperature-27.8 C (-18.0 F)2.2 C (4.0 F)3517 of 100 (Routine)
2020-12-13Bonanza IdahoRecord low maximum temperature-9.4 C (15.1 F)1.7 C (3.1 F)3016 of 100 (Routine)
2020-12-13Banner SummitRecord low maximum temperature-8.7 C (16.3 F)1.8 C (3.2 F)3016 of 100 (Routine)
2020-12-14Bryce Canyon Np HqrsRecord low minimum temperature-25.0 C (-13.0 F)6.1 C (11.0 F)5934 of 100 (Routine)
2020-12-14Antero RsvrRecord low maximum temperature-15.0 C (5.0 F)2.8 C (5.0 F)5325 of 100 (Routine)
2020-12-14Ordway 4 WRecord low minimum temperature-21.7 C (-7.1 F)5.6 C (10.1 F)3123 of 100 (Routine)
2020-12-14Antero RsvrRecord low minimum temperature-35.0 C (-31.0 F)1.7 C (3.1 F)4822 of 100 (Routine)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 164 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.