Data / Heating degree days / Michigan

Heating degree days in Michigan

Heating degree days in Michigan was 6,634 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is up 19.3% from 2024. That is the 10th highest of 48 states in 2025.

2025, degree days (base 65°F)6,634
Change on 2024+19.3%
Rank10th of 48US states ranked
Series high8,5941917
Series low5,5602024

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Heating degree days in Michigan, 1895 to 2025

5,0006,0007,0008,0009,000189519141933195219711990200920251895: 7,931 degree days (base 65°F)1896: 7,322 degree days (base 65°F)1897: 7,540 degree days (base 65°F)1898: 7,329 degree days (base 65°F)1899: 7,542 degree days (base 65°F)1900: 7,280 degree days (base 65°F)1901: 7,777 degree days (base 65°F)1902: 7,254 degree days (base 65°F)1903: 7,518 degree days (base 65°F)1904: 8,402 degree days (base 65°F)1905: 7,715 degree days (base 65°F)1906: 7,222 degree days (base 65°F)1907: 7,985 degree days (base 65°F)1908: 7,192 degree days (base 65°F)1909: 7,432 degree days (base 65°F)1910: 7,330 degree days (base 65°F)1911: 7,032 degree days (base 65°F)1912: 8,024 degree days (base 65°F)1913: 6,948 degree days (base 65°F)1914: 7,517 degree days (base 65°F)1915: 7,375 degree days (base 65°F)1916: 7,651 degree days (base 65°F)1917: 8,594 degree days (base 65°F)1918: 7,458 degree days (base 65°F)1919: 7,152 degree days (base 65°F)1920: 7,585 degree days (base 65°F)1921: 6,359 degree days (base 65°F)1922: 6,926 degree days (base 65°F)1923: 7,437 degree days (base 65°F)1924: 7,950 degree days (base 65°F)1925: 7,550 degree days (base 65°F)1926: 8,029 degree days (base 65°F)1927: 6,979 degree days (base 65°F)1928: 7,331 degree days (base 65°F)1929: 7,686 degree days (base 65°F)1930: 7,091 degree days (base 65°F)1931: 6,286 degree days (base 65°F)1932: 7,043 degree days (base 65°F)1933: 6,991 degree days (base 65°F)1934: 7,359 degree days (base 65°F)1935: 7,567 degree days (base 65°F)1936: 7,640 degree days (base 65°F)1937: 7,440 degree days (base 65°F)1938: 6,643 degree days (base 65°F)1939: 6,954 degree days (base 65°F)1940: 7,747 degree days (base 65°F)1941: 6,685 degree days (base 65°F)1942: 7,112 degree days (base 65°F)1943: 7,741 degree days (base 65°F)1944: 7,150 degree days (base 65°F)1945: 7,317 degree days (base 65°F)1946: 6,516 degree days (base 65°F)1947: 7,409 degree days (base 65°F)1948: 7,204 degree days (base 65°F)1949: 6,696 degree days (base 65°F)1950: 7,567 degree days (base 65°F)1951: 7,392 degree days (base 65°F)1952: 6,918 degree days (base 65°F)1953: 6,487 degree days (base 65°F)1954: 6,944 degree days (base 65°F)1955: 6,937 degree days (base 65°F)1956: 7,157 degree days (base 65°F)1957: 7,158 degree days (base 65°F)1958: 7,422 degree days (base 65°F)1959: 7,250 degree days (base 65°F)1960: 7,356 degree days (base 65°F)1961: 7,101 degree days (base 65°F)1962: 7,437 degree days (base 65°F)1963: 7,513 degree days (base 65°F)1964: 6,859 degree days (base 65°F)1965: 7,246 degree days (base 65°F)1966: 7,428 degree days (base 65°F)1967: 7,416 degree days (base 65°F)1968: 7,112 degree days (base 65°F)1969: 7,333 degree days (base 65°F)1970: 7,272 degree days (base 65°F)1971: 7,019 degree days (base 65°F)1972: 7,662 degree days (base 65°F)1973: 6,575 degree days (base 65°F)1974: 7,225 degree days (base 65°F)1975: 6,949 degree days (base 65°F)1976: 7,593 degree days (base 65°F)1977: 7,176 degree days (base 65°F)1978: 7,741 degree days (base 65°F)1979: 7,511 degree days (base 65°F)1980: 7,579 degree days (base 65°F)1981: 7,216 degree days (base 65°F)1982: 7,246 degree days (base 65°F)1983: 7,078 degree days (base 65°F)1984: 7,119 degree days (base 65°F)1985: 7,117 degree days (base 65°F)1986: 6,911 degree days (base 65°F)1987: 6,426 degree days (base 65°F)1988: 7,154 degree days (base 65°F)1989: 7,514 degree days (base 65°F)1990: 6,396 degree days (base 65°F)1991: 6,505 degree days (base 65°F)1992: 7,124 degree days (base 65°F)1993: 7,362 degree days (base 65°F)1994: 7,110 degree days (base 65°F)1995: 7,253 degree days (base 65°F)1996: 7,502 degree days (base 65°F)1997: 7,248 degree days (base 65°F)1998: 5,766 degree days (base 65°F)1999: 6,505 degree days (base 65°F)2000: 6,777 degree days (base 65°F)2001: 6,272 degree days (base 65°F)2002: 6,657 degree days (base 65°F)2003: 7,132 degree days (base 65°F)2004: 6,774 degree days (base 65°F)2005: 6,793 degree days (base 65°F)2006: 6,159 degree days (base 65°F)2007: 6,554 degree days (base 65°F)2008: 7,073 degree days (base 65°F)2009: 7,029 degree days (base 65°F)2010: 6,401 degree days (base 65°F)2011: 6,727 degree days (base 65°F)2012: 5,774 degree days (base 65°F)2013: 7,009 degree days (base 65°F)2014: 7,670 degree days (base 65°F)2015: 6,713 degree days (base 65°F)2016: 6,156 degree days (base 65°F)2017: 6,225 degree days (base 65°F)2018: 6,854 degree days (base 65°F)2019: 6,963 degree days (base 65°F)2020: 6,276 degree days (base 65°F)2021: 6,079 degree days (base 65°F)2022: 6,708 degree days (base 65°F)2023: 5,867 degree days (base 65°F)2024: 5,560 degree days (base 65°F)2025: 6,634 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)
20256,634
20245,560
20235,867
20226,708
20216,079
20206,276
20196,963
20186,854
20176,225
20166,156
20156,713
20147,670
20137,009
20125,774
20116,727
20106,401
20097,029
20087,073
20076,554
20066,159
20056,793
20046,774
20037,132
20026,657
20016,272
20006,777
19996,505
19985,766
19977,248
19967,502
19957,253
19947,110
19937,362
19927,124
19916,505
19906,396
19897,514
19887,154
19876,426
19866,911
19857,117
19847,119
19837,078
19827,246
19817,216
19807,579
19797,511
19787,741
19777,176
19767,593
19756,949
19747,225
19736,575
19727,662
19717,019
19707,272
19697,333
19687,112
19677,416
19667,428
19657,246
19646,859
19637,513
19627,437
19617,101
19607,356
19597,250
19587,422
19577,158
19567,157
19556,937
19546,944
19536,487
19526,918
19517,392
19507,567
19496,696
19487,204
19477,409
19466,516
19457,317
19447,150
19437,741
19427,112
19416,685
19407,747
19396,954
19386,643
19377,440
19367,640
19357,567
19347,359
19336,991
19327,043
19316,286
19307,091
19297,686
19287,331
19276,979
19268,029
19257,550
19247,950
19237,437
19226,926
19216,359
19207,585
19197,152
19187,458
19178,594
19167,651
19157,375
19147,517
19136,948
19128,024
19117,032
19107,330
19097,432
19087,192
19077,985
19067,222
19057,715
19048,402
19037,518
19027,254
19017,777
19007,280
18997,542
18987,329
18977,540
18967,322
18957,931

Compared with United States

Place2025
Michigan6,634
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/20/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, Michigan, 1895 to 2025) [Data set]. Retrieved October 12, 2026, from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/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, Michigan, 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/20/hdd/12/12/1895-2025/data.json. Invokely, https://invokely.ai/en/heating-degree-days/michigan. 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, Michigan, 1895 to 2025. Dataset. Accessed October 12, 2026. https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/hdd/12/12/1895-2025/data.json. Also distributed by Invokely, https://invokely.ai/en/heating-degree-days/michigan.

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, Michigan, 1895 to 2025 [Dataset]. Available at: https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/hdd/12/12/1895-2025/data.json, via Invokely: https://invokely.ai/en/heating-degree-days/michigan (Accessed: 12 October 2026).

BibTeX
@misc{noaa_heating_degree_days_michigan_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, Michigan, 1895 to 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/statewide/time-series/20/hdd/12/12/1895-2025/data.json},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/heating-degree-days/michigan. 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/20/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, Michigan, 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/20/hdd/12/12/1895-2025/data.json
L2  - https://invokely.ai/en/heating-degree-days/michigan
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/heating-degree-days/michigan.
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/20/hdd/12/12/1895-2025/data.json. Retrieved 2026-10-12.
ER  -
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Questions

What is the heating degree days in Michigan?

Heating degree days in Michigan was 6,634 degree days (base 65°F) in 2025, according to NOAA National Centers for Environmental Information. That is up 19.3% from 2024. That is the 10th 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 Michigan?

8,594 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 Michigan

All statistics for Michigan | Michigan in figures