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Built 2026-10-19 (19 October 2026)

Cold outbreak in United States and Mexico, 14 to 21 December 2019

Cold outbreak in United States and Mexico, 14 to 21 December 2019: 223 records at 159 stations, peak on 16 December 2019. Closed.

Data as of . Last revised (2026-10-18).

Key Facts

  • Cold outbreak in United States and Mexico, 14 to 21 December 2019 set or tied 223 station records at 159 stations.
  • It ran from 14 December 2019 to 21 December 2019 (8 days) and its peak day was 16 December 2019.
  • Status: closed.
  • San Carlos Rsvr set a daily record low minimum temperature of -6.7 C (19.9 F) on 19 December 2019.
  • The busiest day was 16 December 2019 with 97 records.
  • The oldest broken record in the ranked list had stood for 123 years.

Footprint

14 to 21 December 2019
Footprint of Cold outbreak in United States and Mexico, 14 to 21 December 2019 The area covered by Cold outbreak in United States and Mexico, 14 to 21 December 2019 is outlined, with 14 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United States and Mexico, 14 to 21 December 2019 is outlined, with 14 of the stations that set records marked, coloured by record type. Made with Natural Earth.
Footprint of Cold outbreak in United States and Mexico, 14 to 21 December 2019: stations that set records in the event
StationTypeValueDate
San Carlos RsvrRecord low minimum temperature-6.7 C (19.9 F)2019-12-19
ClimaxRecord low maximum temperature-15.6 C (3.9 F)2019-12-17
Crested ButteRecord low minimum temperature-33.3 C (-27.9 F)2019-12-17
Telluride 4WNWRecord low maximum temperature-10.6 C (12.9 F)2019-12-17
Carrizo Springs 3SRecord low minimum temperature-6.1 C (21.0 F)2019-12-20
Del Norte 3ENERecord low minimum temperature-26.7 C (-16.1 F)2019-12-19
FredericksburgRecord low minimum temperature-8.3 C (17.1 F)2019-12-20
Roosevelt 1 SRecord low minimum temperature-3.3 C (26.1 F)2019-12-14
IbapahRecord low maximum temperature-5.6 C (21.9 F)2019-12-17
ManassaRecord low maximum temperature-8.9 C (16.0 F)2019-12-18
Bright Angel RsRecord low maximum temperature-7.2 C (19.0 F)2019-12-16
Leo 6 SWRecord low minimum temperature-22.8 C (-9.0 F)2019-12-16
Mtn ParkRecord low maximum temperature0.0 C (32.0 F)2019-12-17
WoodruffRecord low minimum temperature-31.7 C (-25.1 F)2019-12-17

Records per Day

Peak day 97
Records per day during Cold outbreak in United States and Mexico, 14 to 21 December 2019 Records set or tied each day from 14 December 2019 to 21 December 2019. The most in one day was 97 on 16 December 2019. 0 25 50 75 100 12-1412-1512-1612-1712-1812-1912-2012-21
Records set or tied each day from 14 December 2019 to 21 December 2019. The most in one day was 97 on 16 December 2019.
Records per day during Cold outbreak in United States and Mexico, 14 to 21 December 2019
DateRecords
2019-12-141
2019-12-157
2019-12-1697
2019-12-1743
2019-12-1845
2019-12-1921
2019-12-208
2019-12-211

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United States and Mexico, 14 to 21 December 2019 ranked by margin
Carrizo Springs 3S, 12-202.8 C (5.0 F)
Del Norte 3ENE, 12-192.3 C (4.1 F)
Leo 6 SW, 12-161.7 C (3.1 F)
San Carlos Rsvr, 12-191.1 C (2.0 F)
Crested Butte, 12-171.1 C (2.0 F)
Roosevelt 1 S, 12-141.1 C (2.0 F)
Manassa, 12-181.1 C (2.0 F)
Mtn Park, 12-171.1 C (2.0 F)
San Carlos Rsvr, 12-200.6 C (1.1 F)
Climax, 12-170.6 C (1.1 F)
Telluride 4WNW, 12-170.6 C (1.1 F)
San Carlos Rsvr, 12-180.6 C (1.1 F)
San Carlos Rsvr, 12-210.6 C (1.1 F)
Ibapah, 12-170.6 C (1.1 F)
Del Norte 3ENE, 12-180.6 C (1.1 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 and Mexico, 14 to 21 December 2019 223 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 0.02.55.07.510.0 Margin (C) Years the old record stood
223 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 and Mexico, 14 to 21 December 2019
Margin (C)Years the old record stood
1.1112
0.6109
0.6123
1.1100
0.6104
2.889
2.386
0.5109
1.188
0.693
0.693
0.696
1.192
0.590
0.588
0.686
1.185
1.786
0.685
0.586
8.353
4.452
0.672
4.454
2.750
1.465
1.762
1.750
2.254
0.564
1.154
1.646
1.648
1.754
0.654
0.658
2.854
2.226
1.752
0.654
1.753
1.644
1.154
5.630
1.753
1.736
1.145
4.534
2.834
0.554
1.648
0.648
0.652
0.552
3.322
3.932
3.429
2.837
0.646
2.234
1.134
2.222
3.930
2.140
2.332
2.829
5.010
1.137
3.826
4.229
2.329
1.140
3.38
1.129
2.216
0.637
0.640
2.826
1.626
3.48
1.116
1.117
1.712
2.826
2.826
2.726
1.734
1.029
0.632
2.28
0.616
1.712
1.626
1.122
0.534
1.612
2.226
1.726
2.326
2.229
2.326
2.326
2.629
0.526
3.422
2.222
0.534
2.82
1.726
4.410
1.732
2.029
1.021
0.322
0.526
2.316
0.626
0.68
2.222
1.713
0.512
0.526
2.222
1.229
1.626
1.126
1.229
1.629
1.226
1.326
1.122
1.122
0.622
3.92
0.626
0.626
0.530
1.722
1.822
1.029
0.626
0.728
0.826
0.729
1.116
0.522
1.112
0.526
0.628
1.722
0.618
2.813
0.524
2.813
0.326
0.429
0.326
0.526
0.526
0.226
0.416
1.716
1.122
1.122
2.410
3.24
2.32
1.72
1.14
2.24
0.622
2.84
1.116
1.14
1.216
1.116
2.74
1.316
0.522
0.610
2.74
0.716
2.36
1.86
0.714
0.62
1.12
0.54
1.72
0.66
2.21
0.610
0.610
0.113
0.712
0.416
2.24
1.110
0.516
0.710

Compared With Other Events

Station records per event
Station records in Cold outbreak in United States and Mexico, 14 to 21 December 2019 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 and Mexico, 14 to 21 December 2019 (this event)223 records

Every Record Set

20 of 223
Every record set or tied during Cold outbreak in United States and Mexico, 14 to 21 December 2019, in date order
DateStationRecordValueMarginYears stoodSignificance
2019-12-14Roosevelt 1 SRecord low minimum temperature-3.3 C (26.1 F)1.1 C (2.0 F)8839 of 100 (Notable)
2019-12-15Roosevelt 1 SRecord low minimum temperature-3.3 C (26.1 F)0.5 C (0.9 F)8837 of 100 (Notable)
2019-12-16Bright Angel RsRecord low maximum temperature-7.2 C (19.0 F)0.5 C (0.9 F)9037 of 100 (Notable)
2019-12-16Leo 6 SWRecord low minimum temperature-22.8 C (-9.0 F)1.7 C (3.1 F)8637 of 100 (Notable)
2019-12-16Leo 6 SWRecord low maximum temperature-4.4 C (24.1 F)0.5 C (0.9 F)8635 of 100 (Notable)
2019-12-17ClimaxRecord low maximum temperature-15.6 C (3.9 F)0.6 C (1.1 F)12341 of 100 (Notable)
2019-12-17Crested ButteRecord low minimum temperature-33.3 C (-27.9 F)1.1 C (2.0 F)10041 of 100 (Notable)
2019-12-17Telluride 4WNWRecord low maximum temperature-10.6 C (12.9 F)0.6 C (1.1 F)10441 of 100 (Notable)
2019-12-17IbapahRecord low maximum temperature-5.6 C (21.9 F)0.6 C (1.1 F)9639 of 100 (Notable)
2019-12-17Mtn ParkRecord low maximum temperature0.0 C (32.0 F)1.1 C (2.0 F)8537 of 100 (Notable)
2019-12-17WoodruffRecord low minimum temperature-31.7 C (-25.1 F)0.6 C (1.1 F)8535 of 100 (Notable)
2019-12-18San Carlos RsvrRecord low minimum temperature-6.7 C (19.9 F)0.6 C (1.1 F)9339 of 100 (Notable)
2019-12-18ManassaRecord low maximum temperature-8.9 C (16.0 F)1.1 C (2.0 F)9238 of 100 (Notable)
2019-12-18Del Norte 3ENERecord low minimum temperature-26.7 C (-16.1 F)0.6 C (1.1 F)8637 of 100 (Notable)
2019-12-19San Carlos RsvrRecord low minimum temperature-6.7 C (19.9 F)1.1 C (2.0 F)11243 of 100 (Notable)
2019-12-19Del Norte 3ENERecord low minimum temperature-26.7 C (-16.1 F)2.3 C (4.1 F)8640 of 100 (Notable)
2019-12-20San Carlos RsvrRecord low minimum temperature-5.6 C (21.9 F)0.6 C (1.1 F)10941 of 100 (Notable)
2019-12-20Carrizo Springs 3SRecord low minimum temperature-6.1 C (21.0 F)2.8 C (5.0 F)8941 of 100 (Notable)
2019-12-20FredericksburgRecord low minimum temperature-8.3 C (17.1 F)0.5 C (0.9 F)10940 of 100 (Notable)
2019-12-21San Carlos RsvrRecord low minimum temperature-6.7 C (19.9 F)0.6 C (1.1 F)9339 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 223 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 2026-10-18. Events are found by this site from station records and are not official designations. Records are provisional until reprocessed.