Data / Cooling degree days / Louisiana

Cooling degree days in Louisiana

Cooling degree days in Louisiana was 3,033 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 3.6% from 2024. That is the 4th highest of 48 states in 2025.

2025, degree days (base 65°F)3,033
Change on 2024-3.6%
Rank4th of 48US states ranked
Series high3,2352023
Series low2,0921976

Next release: Wednesday, 6 October 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Cooling degree days in Louisiana, 1895 to 2025

2,0002,2502,5002,7503,0003,250189519141933195219711990200920251895: 2,476 degree days (base 65°F)1896: 2,806 degree days (base 65°F)1897: 2,713 degree days (base 65°F)1898: 2,487 degree days (base 65°F)1899: 2,660 degree days (base 65°F)1900: 2,687 degree days (base 65°F)1901: 2,405 degree days (base 65°F)1902: 2,771 degree days (base 65°F)1903: 2,193 degree days (base 65°F)1904: 2,442 degree days (base 65°F)1905: 2,735 degree days (base 65°F)1906: 2,565 degree days (base 65°F)1907: 2,653 degree days (base 65°F)1908: 2,676 degree days (base 65°F)1909: 2,683 degree days (base 65°F)1910: 2,519 degree days (base 65°F)1911: 2,926 degree days (base 65°F)1912: 2,581 degree days (base 65°F)1913: 2,349 degree days (base 65°F)1914: 2,579 degree days (base 65°F)1915: 2,658 degree days (base 65°F)1916: 2,515 degree days (base 65°F)1917: 2,248 degree days (base 65°F)1918: 2,636 degree days (base 65°F)1919: 2,634 degree days (base 65°F)1920: 2,494 degree days (base 65°F)1921: 2,829 degree days (base 65°F)1922: 2,680 degree days (base 65°F)1923: 2,371 degree days (base 65°F)1924: 2,552 degree days (base 65°F)1925: 2,758 degree days (base 65°F)1926: 2,550 degree days (base 65°F)1927: 2,881 degree days (base 65°F)1928: 2,424 degree days (base 65°F)1929: 2,560 degree days (base 65°F)1930: 2,510 degree days (base 65°F)1931: 2,485 degree days (base 65°F)1932: 2,577 degree days (base 65°F)1933: 2,828 degree days (base 65°F)1934: 2,617 degree days (base 65°F)1935: 2,645 degree days (base 65°F)1936: 2,621 degree days (base 65°F)1937: 2,490 degree days (base 65°F)1938: 2,584 degree days (base 65°F)1939: 2,599 degree days (base 65°F)1940: 2,160 degree days (base 65°F)1941: 2,715 degree days (base 65°F)1942: 2,355 degree days (base 65°F)1943: 2,564 degree days (base 65°F)1944: 2,597 degree days (base 65°F)1945: 2,557 degree days (base 65°F)1946: 2,519 degree days (base 65°F)1947: 2,641 degree days (base 65°F)1948: 2,615 degree days (base 65°F)1949: 2,636 degree days (base 65°F)1950: 2,531 degree days (base 65°F)1951: 2,657 degree days (base 65°F)1952: 2,433 degree days (base 65°F)1953: 2,670 degree days (base 65°F)1954: 2,675 degree days (base 65°F)1955: 2,574 degree days (base 65°F)1956: 2,502 degree days (base 65°F)1957: 2,526 degree days (base 65°F)1958: 2,475 degree days (base 65°F)1959: 2,490 degree days (base 65°F)1960: 2,481 degree days (base 65°F)1961: 2,159 degree days (base 65°F)1962: 2,697 degree days (base 65°F)1963: 2,709 degree days (base 65°F)1964: 2,521 degree days (base 65°F)1965: 2,555 degree days (base 65°F)1966: 2,320 degree days (base 65°F)1967: 2,269 degree days (base 65°F)1968: 2,287 degree days (base 65°F)1969: 2,455 degree days (base 65°F)1970: 2,417 degree days (base 65°F)1971: 2,425 degree days (base 65°F)1972: 2,550 degree days (base 65°F)1973: 2,523 degree days (base 65°F)1974: 2,386 degree days (base 65°F)1975: 2,335 degree days (base 65°F)1976: 2,092 degree days (base 65°F)1977: 2,632 degree days (base 65°F)1978: 2,585 degree days (base 65°F)1979: 2,336 degree days (base 65°F)1980: 2,655 degree days (base 65°F)1981: 2,563 degree days (base 65°F)1982: 2,538 degree days (base 65°F)1983: 2,231 degree days (base 65°F)1984: 2,429 degree days (base 65°F)1985: 2,670 degree days (base 65°F)1986: 2,712 degree days (base 65°F)1987: 2,430 degree days (base 65°F)1988: 2,380 degree days (base 65°F)1989: 2,361 degree days (base 65°F)1990: 2,660 degree days (base 65°F)1991: 2,637 degree days (base 65°F)1992: 2,283 degree days (base 65°F)1993: 2,435 degree days (base 65°F)1994: 2,419 degree days (base 65°F)1995: 2,625 degree days (base 65°F)1996: 2,447 degree days (base 65°F)1997: 2,475 degree days (base 65°F)1998: 3,049 degree days (base 65°F)1999: 2,732 degree days (base 65°F)2000: 2,792 degree days (base 65°F)2001: 2,515 degree days (base 65°F)2002: 2,669 degree days (base 65°F)2003: 2,604 degree days (base 65°F)2004: 2,711 degree days (base 65°F)2005: 2,732 degree days (base 65°F)2006: 2,784 degree days (base 65°F)2007: 2,680 degree days (base 65°F)2008: 2,527 degree days (base 65°F)2009: 2,664 degree days (base 65°F)2010: 2,921 degree days (base 65°F)2011: 2,883 degree days (base 65°F)2012: 2,847 degree days (base 65°F)2013: 2,521 degree days (base 65°F)2014: 2,427 degree days (base 65°F)2015: 2,984 degree days (base 65°F)2016: 2,977 degree days (base 65°F)2017: 2,747 degree days (base 65°F)2018: 3,006 degree days (base 65°F)2019: 2,918 degree days (base 65°F)2020: 2,856 degree days (base 65°F)2021: 2,703 degree days (base 65°F)2022: 2,790 degree days (base 65°F)2023: 3,235 degree days (base 65°F)2024: 3,147 degree days (base 65°F)2025: 3,033 degree days (base 65°F)2,0002,5003,0003,50018951939198320252025: 3,033 degree days (base 65°F)
degree days (base 65°F). Source: NOAA NCEI, NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Retrieved 2026-10-12, published 2026-10-06.
All 131 values
Perioddegree days (base 65°F)
20253,033
20243,147
20233,235
20222,790
20212,703
20202,856
20192,918
20183,006
20172,747
20162,977
20152,984
20142,427
20132,521
20122,847
20112,883
20102,921
20092,664
20082,527
20072,680
20062,784
20052,732
20042,711
20032,604
20022,669
20012,515
20002,792
19992,732
19983,049
19972,475
19962,447
19952,625
19942,419
19932,435
19922,283
19912,637
19902,660
19892,361
19882,380
19872,430
19862,712
19852,670
19842,429
19832,231
19822,538
19812,563
19802,655
19792,336
19782,585
19772,632
19762,092
19752,335
19742,386
19732,523
19722,550
19712,425
19702,417
19692,455
19682,287
19672,269
19662,320
19652,555
19642,521
19632,709
19622,697
19612,159
19602,481
19592,490
19582,475
19572,526
19562,502
19552,574
19542,675
19532,670
19522,433
19512,657
19502,531
19492,636
19482,615
19472,641
19462,519
19452,557
19442,597
19432,564
19422,355
19412,715
19402,160
19392,599
19382,584
19372,490
19362,621
19352,645
19342,617
19332,828
19322,577
19312,485
19302,510
19292,560
19282,424
19272,881
19262,550
19252,758
19242,552
19232,371
19222,680
19212,829
19202,494
19192,634
19182,636
19172,248
19162,515
19152,658
19142,579
19132,349
19122,581
19112,926
19102,519
19092,683
19082,676
19072,653
19062,565
19052,735
19042,442
19032,193
19022,771
19012,405
19002,687
18992,660
18982,487
18972,713
18962,806
18952,476

Compared with United States

Place2025
Louisiana3,033
United States1,502

Louisiana compared with nearby places

Alabama: 2,092 degree days (base 65°F)Arizona: 3,330 degree days (base 65°F)Arkansas: 1,990 degree days (base 65°F)California: 948 degree days (base 65°F)Colorado: 348 degree days (base 65°F)Connecticut: 695 degree days (base 65°F)Delaware: 1,171 degree days (base 65°F)Florida: 3,882 degree days (base 65°F)Georgia: 1,831 degree days (base 65°F)Idaho: 627 degree days (base 65°F)Illinois: 1,038 degree days (base 65°F)Indiana: 1,041 degree days (base 65°F)Iowa: 953 degree days (base 65°F)Kansas: 1,488 degree days (base 65°F)Kentucky: 1,400 degree days (base 65°F)Louisiana: 3,033 degree days (base 65°F)Maine: 282 degree days (base 65°F)Maryland: 1,209 degree days (base 65°F)Massachusetts: 587 degree days (base 65°F)Michigan: 670 degree days (base 65°F)Minnesota: 522 degree days (base 65°F)Mississippi: 2,510 degree days (base 65°F)Missouri: 1,413 degree days (base 65°F)Montana: 237 degree days (base 65°F)Nebraska: 1,096 degree days (base 65°F)Nevada: 2,339 degree days (base 65°F)New Hampshire: 386 degree days (base 65°F)New Jersey: 926 degree days (base 65°F)New Mexico: 1,145 degree days (base 65°F)New York: 716 degree days (base 65°F)North Carolina: 1,533 degree days (base 65°F)North Dakota: 474 degree days (base 65°F)Ohio: 910 degree days (base 65°F)Oklahoma: 2,019 degree days (base 65°F)Oregon: 379 degree days (base 65°F)Pennsylvania: 788 degree days (base 65°F)Rhode Island: 633 degree days (base 65°F)South Carolina: 1,973 degree days (base 65°F)South Dakota: 767 degree days (base 65°F)Tennessee: 1,575 degree days (base 65°F)Texas: 3,219 degree days (base 65°F)Utah: 673 degree days (base 65°F)Vermont: 301 degree days (base 65°F)Virginia: 1,212 degree days (base 65°F)Washington: 298 degree days (base 65°F)West Virginia: 949 degree days (base 65°F)Wisconsin: 589 degree days (base 65°F)Wyoming: 332 degree days (base 65°F)
  • Under 460
  • 460 to 690
  • 690 to 950
  • 950 to 1,300
  • 1,300 to 2,000
  • 2,000 and over
  • No data
Cooling degree days, 2025, degree days (base 65°F). Louisiana is outlined. Same source and period for every area shown. Source: NOAA National Centers for Environmental Information. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

Sum over January to December of the degrees by which the daily mean temperature exceeds 65°F, a measure of cooling demand. NOAA estimates monthly values from nClimDiv temperatures and weights areas by population (2010 Census).

NOAA publishes these for operational monitoring; they can differ from official degree day publications.

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How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.

Citation styles

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APA 7

NOAA National Centers for Environmental Information. (2026). NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide (Cooling degree days, Louisiana, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json

MLA 9

NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, Cooling degree days, Louisiana, 1895 to 2025. NOAA National Centers for Environmental Information, 6 Oct. 2026, https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/cooling-degree-days/louisiana. Accessed 12 Oct. 2026.

Chicago (author-date)

NOAA National Centers for Environmental Information. 2026. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Cooling degree days, Louisiana, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/cooling-degree-days/louisiana.

Harvard

NOAA National Centers for Environmental Information (2026) NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide, Cooling degree days, Louisiana, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/cooling-degree-days/louisiana (Accessed: 12 October 2026).

BibTeX
@misc{noaa_cooling_degree_days_louisiana_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide: Cooling degree days, Louisiana, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/louisiana. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - NOAA National Centers for Environmental Information
TI  - NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide: Cooling degree days, Louisiana, 1895 to 2025
PY  - 2026
DA  - 2026/10/06
PB  - NOAA National Centers for Environmental Information
DB  - Invokely
UR  - https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/cooling-degree-days/louisiana
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/cooling-degree-days/louisiana.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. From the NOAA Monthly U.S. Climate Divisional Database (nClimDiv), doi:10.7289/V5M32STR. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/16/cdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -
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Questions

What is the cooling degree days in Louisiana?

Cooling degree days in Louisiana was 3,033 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is down 3.6% from 2024. That is the 4th highest of 48 states in 2025.

Where does this figure come from?

NOAA National Centers for Environmental Information. NOAA Climate at a Glance, January to December cooling degree days (base 65°F), contiguous US and statewide. Retrieved by Invokely on 2026-10-12.

What was the highest cooling degree days in Louisiana?

3,235 degree days (base 65°F) in 2023, the highest value since 1895 in this series.

Cooling degree days elsewhere in United States

Related statistics for Louisiana

All statistics for Louisiana | Louisiana in figures