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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Macomb Threshold Days by Year (USC00115280)

15 fixed thresholds counted per year at Macomb (USC00115280): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Macomb Thresholds

  • Macomb: days with 10 mm (0.39 in) or more of precipitation in 116 years, most in 1935 with 44.
  • Macomb: days with 25 mm (0.98 in) or more of precipitation in 116 years, most in 2010 with 22.
  • Macomb: days with 50 mm (1.97 in) or more of precipitation in 92 years, most in 2015 with 6.
  • Macomb: days with 10 cm (3.9 in) or more of snowfall in 50 years, most in 1983 with 8.
  • 15 fixed thresholds have at least one qualifying day at Macomb.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Macomb Days per year at Macomb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1906. 0204060801903: 401904: 161905: 541906: 711907: 471908: 61190319041905190619071908
Days per year at Macomb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1906.
Days at or above 30 C (86 F) per year at Macomb
YearDaysDecade average
19034048.2
19041648.2
19055448.2
19067148.2
19074748.2
19086148.2
First to last qualifying date each year at Macomb For each year, a bar from the first to the last day at Macomb meeting 30 C (86 F). 1903: 22 May 1903 to 14 September 19031904: 3 July 1904 to 17 September 19041905: 10 May 1905 to 29 September 19051906: 16 May 1906 to 19 September 19061907: 21 March 1907 to 20 September 19071908: 16 May 1908 to 14 October 1908190319041905190619071908JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Macomb meeting 30 C (86 F).
First to last qualifying date each year at Macomb
YearFirst dateLast date
19031903-05-221903-09-14
19041904-07-031904-09-17
19051905-05-101905-09-29
19061906-05-161906-09-19
19071907-03-211907-09-20
19081908-05-161908-10-14

Every Fixed Threshold

Fixed thresholds at Macomb
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days671190661
35 C (95 F): Days51019035
90 F (32.2 C): Days648190636
0 C (32 F): Ice days (max645190424
0 C (32 F): Frost days (min61401907126
-10 C (14 F): Days with min648190425
-20 C (-4 F): Days with min51419051
-30 C (-22 F): Days with min1219052
20 C (68 F): Tropical nights (min626190720
10 mm (0.39 in): Days with 10 mm or more rain11644193528
25 mm (0.98 in): Days with 25 mm or more rain11622201014
50 mm (1.97 in): Days with 50 mm or more rain92620154
100 mm (3.94 in): Days with 100 mm or more rain11220262
10 cm (3.9 in): Days with 10 cm or more snowfall50819832
25 cm (9.8 in): Days with 25 cm or more snowfall3119181

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

  • Data for Macomb threshold days by year: CSV or JSON. Field meanings are on the data page.

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 (17 October 2026). Threshold counts are computed by this site.

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