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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, 19 September to 4 October 2023

Cold outbreak in United States, 19 September to 4 October 2023: 333 records at 275 stations, peak on 1 October 2023. Closed.

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

Key Facts

  • Cold outbreak in United States, 19 September to 4 October 2023 set or tied 333 station records at 275 stations.
  • It ran from 19 September 2023 to 4 October 2023 (16 days) and its peak day was 1 October 2023.
  • Status: closed.
  • Colville set a daily record low maximum temperature of 9.4 C (48.9 F) on 28 September 2023.
  • The busiest day was 1 October 2023 with 99 records.
  • The oldest broken record in the ranked list had stood for 106 years.

Footprint

19 September to 4 October 2023
Footprint of Cold outbreak in United States, 19 September to 4 October 2023 The area covered by Cold outbreak in United States, 19 September to 4 October 2023 is outlined, with 20 of the stations that set records marked, coloured by record type.
The area covered by Cold outbreak in United States, 19 September to 4 October 2023 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, 19 September to 4 October 2023: stations that set records in the event
StationTypeValueDate
ColvilleRecord low maximum temperature9.4 C (48.9 F)2023-09-28
Snake Creek PowerhouseRecord low maximum temperature7.2 C (45.0 F)2023-10-03
Antelope 6 SSWRecord low maximum temperature9.4 C (48.9 F)2023-09-22
ColfaxRecord low maximum temperature13.9 C (57.0 F)2023-09-29
LandsburgRecord low minimum temperature-1.1 C (30.0 F)2023-09-29
OjaiRecord low maximum temperature19.4 C (66.9 F)2023-09-30
Gold Beach RsRecord low minimum temperature1.7 C (35.1 F)2023-10-04
PrinevilleRecord low maximum temperature10.6 C (51.1 F)2023-09-22
HeppnerRecord low maximum temperature11.1 C (52.0 F)2023-09-22
Culver CityRecord low maximum temperature20.0 C (68.0 F)2023-10-01
PalmdaleRecord low maximum temperature18.9 C (66.0 F)2023-10-01
Swan Falls PhRecord low maximum temperature13.9 C (57.0 F)2023-10-02
Colusa 2 SSWRecord low minimum temperature2.2 C (36.0 F)2023-09-21
Craters of the MoonRecord low maximum temperature2.8 C (37.0 F)2023-09-22
Gran Quivira Natl MonRecord low minimum temperature-2.8 C (27.0 F)2023-10-03
Klamath Falls Intl APRecord low minimum temperature-3.8 C (25.2 F)2023-09-28
Boise Air TerminalRecord low maximum temperature11.1 C (52.0 F)2023-10-01
Desert NwrRecord low maximum temperature21.7 C (71.1 F)2023-10-03
Manzanita LakeRecord low minimum temperature-3.9 C (25.0 F)2023-09-29
Idyllwild Fire DeptRecord low maximum temperature10.0 C (50.0 F)2023-10-01

Records per Day

Peak day 99
Records per day during Cold outbreak in United States, 19 September to 4 October 2023 Records set or tied each day from 19 September 2023 to 4 October 2023. The most in one day was 99 on 1 October 2023. 0 25 50 75 100 09-1909-2109-2309-2509-2709-2910-0110-03
Records set or tied each day from 19 September 2023 to 4 October 2023. The most in one day was 99 on 1 October 2023.
Records per day during Cold outbreak in United States, 19 September to 4 October 2023
DateRecords
2023-09-191
2023-09-206
2023-09-2141
2023-09-2219
2023-09-236
2023-09-2415
2023-09-256
2023-09-267
2023-09-2732
2023-09-286
2023-09-294
2023-09-3043
2023-10-0199
2023-10-0221
2023-10-0326
2023-10-041

Top Records by Margin

Margin over the record replaced
Top records of Cold outbreak in United States, 19 September to 4 October 2023 ranked by margin
Colusa 2 SSW, 09-214.5 C (8.1 F)
Antelope 6 SSW, 09-223.4 C (6.1 F)
Gold Beach Rs, 10-043.3 C (5.9 F)
Colville, 09-282.8 C (5.0 F)
Klamath Falls Intl AP, 09-282.7 C (4.9 F)
Snake Creek Powerhouse, 10-032.2 C (4.0 F)
Gran Quivira Natl Mon, 10-032.2 C (4.0 F)
Idyllwild Fire Dept, 10-012.2 C (4.0 F)
Boise Air Terminal, 10-011.7 C (3.1 F)
Ojai, 09-301.2 C (2.2 F)
Heppner, 09-221.1 C (2.0 F)
Palmdale, 10-011.1 C (2.0 F)
Swan Falls Ph, 10-021.1 C (2.0 F)
Manzanita Lake, 09-291.1 C (2.0 F)
Culver City, 10-010.6 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, 19 September to 4 October 2023 333 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 0.02.55.07.510.0 Margin (C) Years the old record stood
333 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, 19 September to 4 October 2023
Margin (C)Years the old record stood
2.897
2.2106
0.5104
3.489
0.5104
1.290
3.368
0.593
1.177
0.685
1.178
1.182
4.536
0.558
2.264
0.576
1.772
2.764
2.264
1.172
0.668
3.340
0.574
1.761
0.664
0.572
0.569
0.636
1.752
3.936
8.328
2.838
0.623
1.154
0.653
0.565
3.940
1.654
1.161
2.852
2.240
1.753
1.752
2.840
1.140
1.740
1.152
1.154
0.654
1.752
1.154
1.741
0.553
0.630
0.552
0.552
0.549
1.136
1.145
0.640
0.552
2.241
1.246
0.538
2.236
1.619
1.720
2.836
0.548
4.432
1.720
2.820
2.238
0.636
3.320
0.636
5.020
1.116
0.638
0.641
1.241
0.616
4.520
1.936
1.236
2.320
4.520
2.833
4.520
3.920
1.636
1.120
2.720
0.637
2.720
0.636
1.113
0.537
1.716
1.136
1.714
3.920
1.736
1.134
0.736
0.620
2.317
2.24
2.216
2.216
0.636
3.920
2.232
1.136
1.136
1.726
6.19
1.334
2.220
0.513
1.726
3.320
1.132
1.132
0.436
2.820
0.536
1.034
0.136
0.520
1.717
0.618
1.620
0.614
2.220
2.320
2.320
0.432
1.828
1.428
3.44
0.522
0.65
1.720
2.24
2.25
1.74
2.29
1.712
0.628
0.532
2.316
1.720
1.720
0.530
1.128
1.028
0.232
0.828
0.620
0.620
0.616
0.55
2.24
1.75
1.116
1.220
2.74
1.720
1.120
1.720
1.713
1.620
1.620
1.820
1.120
0.528
0.528
2.216
1.622
0.124
1.124
1.15
0.520
0.520
3.34
1.120
0.620
1.120
0.620
0.620
0.620
1.122
0.622
0.620
1.120
1.120
0.616
0.220
0.225

Compared With Other Events

Station records per event
Station records in Cold outbreak in United States, 19 September to 4 October 2023 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, 19 September to 4 October 2023 (this event)333 records

Every Record Set

20 of 333
Every record set or tied during Cold outbreak in United States, 19 September to 4 October 2023, in date order
DateStationRecordValueMarginYears stoodSignificance
2023-09-21Colusa 2 SSWRecord low minimum temperature2.2 C (36.0 F)4.5 C (8.1 F)3633 of 100 (Routine)
2023-09-22Antelope 6 SSWRecord low maximum temperature9.4 C (48.9 F)3.4 C (6.1 F)8941 of 100 (Notable)
2023-09-22PrinevilleRecord low maximum temperature10.6 C (51.1 F)0.5 C (0.9 F)9338 of 100 (Notable)
2023-09-22HeppnerRecord low maximum temperature11.1 C (52.0 F)1.1 C (2.0 F)7735 of 100 (Notable)
2023-09-22Craters of the MoonRecord low maximum temperature2.8 C (37.0 F)0.5 C (0.9 F)5833 of 100 (Routine)
2023-09-28ColvilleRecord low maximum temperature9.4 C (48.9 F)2.8 C (5.0 F)9744 of 100 (Notable)
2023-09-28Klamath Falls Intl APRecord low minimum temperature-3.8 C (25.2 F)2.7 C (4.9 F)6432 of 100 (Routine)
2023-09-29ColfaxRecord low maximum temperature13.9 C (57.0 F)0.5 C (0.9 F)10441 of 100 (Notable)
2023-09-29LandsburgRecord low minimum temperature-1.1 C (30.0 F)0.5 C (0.9 F)10441 of 100 (Notable)
2023-09-29Manzanita LakeRecord low minimum temperature-3.9 C (25.0 F)1.1 C (2.0 F)7231 of 100 (Routine)
2023-09-30OjaiRecord low maximum temperature19.4 C (66.9 F)1.2 C (2.2 F)9039 of 100 (Notable)
2023-10-01Culver CityRecord low maximum temperature20.0 C (68.0 F)0.6 C (1.1 F)8534 of 100 (Routine)
2023-10-01PalmdaleRecord low maximum temperature18.9 C (66.0 F)1.1 C (2.0 F)7834 of 100 (Routine)
2023-10-01Boise Air TerminalRecord low maximum temperature11.1 C (52.0 F)1.7 C (3.1 F)7232 of 100 (Routine)
2023-10-01Idyllwild Fire DeptRecord low maximum temperature10.0 C (50.0 F)2.2 C (4.0 F)6431 of 100 (Routine)
2023-10-02Swan Falls PhRecord low maximum temperature13.9 C (57.0 F)1.1 C (2.0 F)8234 of 100 (Routine)
2023-10-03Snake Creek PowerhouseRecord low maximum temperature7.2 C (45.0 F)2.2 C (4.0 F)10643 of 100 (Notable)
2023-10-03Gran Quivira Natl MonRecord low minimum temperature-2.8 C (27.0 F)2.2 C (4.0 F)6433 of 100 (Routine)
2023-10-03Desert NwrRecord low maximum temperature21.7 C (71.1 F)0.5 C (0.9 F)7632 of 100 (Routine)
2023-10-04Gold Beach RsRecord low minimum temperature1.7 C (35.1 F)3.3 C (5.9 F)6839 of 100 (Notable)

The daily ledgers keep a limited number of records per day, so this list has 20 of the 333 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.