3 counties set all-time record highs in July 15
Across Michigan, the highest readings in each county's series since 1951. The warmest was Iosco, Michigan, at 98.9°F.
The RecordThursday, November 12, 2026Michigan
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Milepost 1668
Between July 15 and July 15, 2026, 3 counties across 1 state recorded the highest value in their county series, which begins in 1951. The series is NOAA/NCEI nClimGrid-Daily, a gridded county-area average — so these are areal extremes, not single-station readings, and they are not directly comparable to a co-op station's record book.
| County | State | °F | Date |
|---|---|---|---|
| Iosco | Michigan | 98.9 | Jul 15 |
| Alcona | Michigan | 97.9 | Jul 15 |
| Alger | Michigan | 95.8 | Jul 15 |
The numbers in this piece, with what they are measured against
| counties setting an all-time high NOAA/NCEI nClimGrid-Daily |
3 counties | of 3,107 1951-present |
| highest in the outbreak — Iosco, Michigan NOAA/NCEI nClimGrid-Daily (county-area) |
98.9 °F | 1 of 3 1951-present |
- Milepost
- 1668 · laid 2026-11-12T05:25:30Z
- Model
- nClimGrid-Daily
- Desk
- records v2
- Method
- county-area daily extreme vs. the same county's series extreme over the full period of record
- Stores
- /var/www/weather.city/data/records.json
- Tagged
- I-30 Climate · Michigan (44.3, -84.7) · by rule, at build
- Digest
- 952d8378a440f2b42d99c0bc08d9ed49798e64f77a0e06d16ab2ac249a0b554b