Data / Heating degree days / Indiana

Heating degree days in Indiana

Heating degree days in Indiana was 5,589 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is up 18.1% from 2024. That is the 23rd highest of 48 states in 2025.

2025, degree days (base 65°F)5,589
Change on 2024+18.1%
Rank23rd of 48US states ranked
Series high6,9081917
Series low4,7312024

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Heating degree days in Indiana, 1895 to 2025

4,5005,0005,5006,0006,5007,000189519141933195219711990200920251895: 6,570 degree days (base 65°F)1896: 5,809 degree days (base 65°F)1897: 5,994 degree days (base 65°F)1898: 5,894 degree days (base 65°F)1899: 6,060 degree days (base 65°F)1900: 5,812 degree days (base 65°F)1901: 6,483 degree days (base 65°F)1902: 5,975 degree days (base 65°F)1903: 6,227 degree days (base 65°F)1904: 6,755 degree days (base 65°F)1905: 6,313 degree days (base 65°F)1906: 5,993 degree days (base 65°F)1907: 6,303 degree days (base 65°F)1908: 5,705 degree days (base 65°F)1909: 6,117 degree days (base 65°F)1910: 6,207 degree days (base 65°F)1911: 5,750 degree days (base 65°F)1912: 6,696 degree days (base 65°F)1913: 5,677 degree days (base 65°F)1914: 6,166 degree days (base 65°F)1915: 5,966 degree days (base 65°F)1916: 6,127 degree days (base 65°F)1917: 6,908 degree days (base 65°F)1918: 6,048 degree days (base 65°F)1919: 5,792 degree days (base 65°F)1920: 6,177 degree days (base 65°F)1921: 5,011 degree days (base 65°F)1922: 5,526 degree days (base 65°F)1923: 5,887 degree days (base 65°F)1924: 6,586 degree days (base 65°F)1925: 6,046 degree days (base 65°F)1926: 6,450 degree days (base 65°F)1927: 5,541 degree days (base 65°F)1928: 6,058 degree days (base 65°F)1929: 6,310 degree days (base 65°F)1930: 5,825 degree days (base 65°F)1931: 5,144 degree days (base 65°F)1932: 5,832 degree days (base 65°F)1933: 5,561 degree days (base 65°F)1934: 5,927 degree days (base 65°F)1935: 6,058 degree days (base 65°F)1936: 6,341 degree days (base 65°F)1937: 6,294 degree days (base 65°F)1938: 5,256 degree days (base 65°F)1939: 5,587 degree days (base 65°F)1940: 6,452 degree days (base 65°F)1941: 5,568 degree days (base 65°F)1942: 5,896 degree days (base 65°F)1943: 6,296 degree days (base 65°F)1944: 5,876 degree days (base 65°F)1945: 6,061 degree days (base 65°F)1946: 5,111 degree days (base 65°F)1947: 6,234 degree days (base 65°F)1948: 5,899 degree days (base 65°F)1949: 5,451 degree days (base 65°F)1950: 6,252 degree days (base 65°F)1951: 6,214 degree days (base 65°F)1952: 5,689 degree days (base 65°F)1953: 5,407 degree days (base 65°F)1954: 5,499 degree days (base 65°F)1955: 5,851 degree days (base 65°F)1956: 5,636 degree days (base 65°F)1957: 5,843 degree days (base 65°F)1958: 6,436 degree days (base 65°F)1959: 5,917 degree days (base 65°F)1960: 6,368 degree days (base 65°F)1961: 6,065 degree days (base 65°F)1962: 6,238 degree days (base 65°F)1963: 6,445 degree days (base 65°F)1964: 5,755 degree days (base 65°F)1965: 5,825 degree days (base 65°F)1966: 6,301 degree days (base 65°F)1967: 6,074 degree days (base 65°F)1968: 6,127 degree days (base 65°F)1969: 6,309 degree days (base 65°F)1970: 6,109 degree days (base 65°F)1971: 5,846 degree days (base 65°F)1972: 6,269 degree days (base 65°F)1973: 5,432 degree days (base 65°F)1974: 5,812 degree days (base 65°F)1975: 5,721 degree days (base 65°F)1976: 6,260 degree days (base 65°F)1977: 6,199 degree days (base 65°F)1978: 6,765 degree days (base 65°F)1979: 6,549 degree days (base 65°F)1980: 6,369 degree days (base 65°F)1981: 6,087 degree days (base 65°F)1982: 6,067 degree days (base 65°F)1983: 5,981 degree days (base 65°F)1984: 5,960 degree days (base 65°F)1985: 5,964 degree days (base 65°F)1986: 5,627 degree days (base 65°F)1987: 5,443 degree days (base 65°F)1988: 6,154 degree days (base 65°F)1989: 6,262 degree days (base 65°F)1990: 5,116 degree days (base 65°F)1991: 5,334 degree days (base 65°F)1992: 5,677 degree days (base 65°F)1993: 6,131 degree days (base 65°F)1994: 5,786 degree days (base 65°F)1995: 6,040 degree days (base 65°F)1996: 6,312 degree days (base 65°F)1997: 6,084 degree days (base 65°F)1998: 4,782 degree days (base 65°F)1999: 5,412 degree days (base 65°F)2000: 5,810 degree days (base 65°F)2001: 5,259 degree days (base 65°F)2002: 5,529 degree days (base 65°F)2003: 5,913 degree days (base 65°F)2004: 5,524 degree days (base 65°F)2005: 5,617 degree days (base 65°F)2006: 5,147 degree days (base 65°F)2007: 5,459 degree days (base 65°F)2008: 6,038 degree days (base 65°F)2009: 5,822 degree days (base 65°F)2010: 5,779 degree days (base 65°F)2011: 5,494 degree days (base 65°F)2012: 4,832 degree days (base 65°F)2013: 5,961 degree days (base 65°F)2014: 6,563 degree days (base 65°F)2015: 5,605 degree days (base 65°F)2016: 5,133 degree days (base 65°F)2017: 4,986 degree days (base 65°F)2018: 5,801 degree days (base 65°F)2019: 5,725 degree days (base 65°F)2020: 5,279 degree days (base 65°F)2021: 5,273 degree days (base 65°F)2022: 5,746 degree days (base 65°F)2023: 4,821 degree days (base 65°F)2024: 4,731 degree days (base 65°F)2025: 5,589 degree days (base 65°F)
degree days (base 65°F). Source: NOAA NCEI, NOAA Climate at a Glance, January to December heating 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)
20255,589
20244,731
20234,821
20225,746
20215,273
20205,279
20195,725
20185,801
20174,986
20165,133
20155,605
20146,563
20135,961
20124,832
20115,494
20105,779
20095,822
20086,038
20075,459
20065,147
20055,617
20045,524
20035,913
20025,529
20015,259
20005,810
19995,412
19984,782
19976,084
19966,312
19956,040
19945,786
19936,131
19925,677
19915,334
19905,116
19896,262
19886,154
19875,443
19865,627
19855,964
19845,960
19835,981
19826,067
19816,087
19806,369
19796,549
19786,765
19776,199
19766,260
19755,721
19745,812
19735,432
19726,269
19715,846
19706,109
19696,309
19686,127
19676,074
19666,301
19655,825
19645,755
19636,445
19626,238
19616,065
19606,368
19595,917
19586,436
19575,843
19565,636
19555,851
19545,499
19535,407
19525,689
19516,214
19506,252
19495,451
19485,899
19476,234
19465,111
19456,061
19445,876
19436,296
19425,896
19415,568
19406,452
19395,587
19385,256
19376,294
19366,341
19356,058
19345,927
19335,561
19325,832
19315,144
19305,825
19296,310
19286,058
19275,541
19266,450
19256,046
19246,586
19235,887
19225,526
19215,011
19206,177
19195,792
19186,048
19176,908
19166,127
19155,966
19146,166
19135,677
19126,696
19115,750
19106,207
19096,117
19085,705
19076,303
19065,993
19056,313
19046,755
19036,227
19025,975
19016,483
19005,812
18996,060
18985,894
18975,994
18965,809
18956,570

Compared with United States

Place2025
Indiana5,589
United States4,062

Rankings

Definition

Sum over January to December of the degrees by which the daily mean temperature falls below 65°F, a measure of heating 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.

How to cite

NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December heating 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/12/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

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

MLA 9

NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide, Heating degree days, Indiana, 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/12/hdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/heating-degree-days/indiana. Accessed 12 Oct. 2026.

Chicago (author-date)

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

Harvard

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

BibTeX
@misc{noaa_heating_degree_days_indiana_2025,
  author = {{NOAA National Centers for Environmental Information}},
  title = {{NOAA Climate at a Glance, January to December heating degree days (base 65°F), contiguous US and statewide: Heating degree days, Indiana, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/12/hdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/heating-degree-days/indiana. Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December heating 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/12/hdd/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 heating degree days (base 65°F), contiguous US and statewide: Heating degree days, Indiana, 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/12/hdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/heating-degree-days/indiana
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/heating-degree-days/indiana.
N1  - Publisher attribution: NOAA National Centers for Environmental Information, Climate at a Glance. NOAA Climate at a Glance, January to December heating 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/12/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -
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Questions

What is the heating degree days in Indiana?

Heating degree days in Indiana was 5,589 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is up 18.1% from 2024. That is the 23rd 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 heating degree days (base 65°F), contiguous US and statewide. Retrieved by Invokely on 2026-10-12.

What was the highest heating degree days in Indiana?

6,908 degree days (base 65°F) in 1917, the highest value since 1895 in this series.

Heating degree days elsewhere in United States

Related statistics for Indiana

All statistics for Indiana | Indiana in figures