Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

St Ignace Mackinac Br Threshold Days by Year (USC00207274)

13 fixed thresholds counted per year at St Ignace Mackinac Br (USC00207274): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Ignace Mackinac Br Thresholds

  • St Ignace Mackinac Br: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 1995 with 96.
  • St Ignace Mackinac Br: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1981 with 169.
  • St Ignace Mackinac Br: nights with a minimum temperature at or below -10 C (14 F) in 26 years, most in 1980 with 74.
  • St Ignace Mackinac Br: nights with a minimum temperature at or below -20 C (-4 F) in 22 years, most in 1994 with 20.
  • 13 fixed thresholds have at least one qualifying day at St Ignace Mackinac Br.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at St Ignace Mackinac Br Days per year at St Ignace Mackinac Br with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2005. 024681975: 51976: 51977: 11985: 11991: 11999: 62000: 12001: 52002: 12005: 82006: 42007: 5197519771991200020022006
Days per year at St Ignace Mackinac Br with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2005.
Days at or above 30 C (86 F) per year at St Ignace Mackinac Br
YearDaysDecade average
197553.7
197653.7
197713.7
198511
199113.5
199963.5
200014
200154
200214
200584
200644
200754
First to last qualifying date each year at St Ignace Mackinac Br For each year, a bar from the first to the last day at St Ignace Mackinac Br meeting 30 C (86 F). 1975: 1 July 1975 to 2 August 19751976: 15 June 1976 to 28 August 19761977: 19 July 1977 to 19 July 19771985: 4 August 1985 to 4 August 19851991: 29 August 1991 to 29 August 19911999: 27 June 1999 to 5 September 19992000: 1 September 2000 to 1 September 20002001: 14 June 2001 to 5 August 20012002: 10 September 2002 to 10 September 20022005: 11 July 2005 to 4 August 20052006: 18 June 2006 to 1 August 20062007: 14 June 2007 to 1 August 2007197519771991200020022006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Ignace Mackinac Br meeting 30 C (86 F).
First to last qualifying date each year at St Ignace Mackinac Br
YearFirst dateLast date
19751975-07-011975-08-02
19761976-06-151976-08-28
19771977-07-191977-07-19
19851985-08-041985-08-04
19911991-08-291991-08-29
19991999-06-271999-09-05
20002000-09-012000-09-01
20012001-06-142001-08-05
20022002-09-102002-09-10
20052005-07-112005-08-04
20062006-06-182006-08-01
20072007-06-142007-08-01

Every Fixed Threshold

Fixed thresholds at St Ignace Mackinac Br
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days12820055
90 F (32.2 C): Days3220052
0 C (32 F): Ice days (max2996199570
0 C (32 F): Frost days (min261691981156
-10 C (14 F): Days with min2674198060
-20 C (-4 F): Days with min222019945
-30 C (-22 F): Days with min3119811
20 C (68 F): Tropical nights (min191420051
10 mm (0.39 in): Days with 10 mm or more rain2133199527
25 mm (0.98 in): Days with 25 mm or more rain211119958
50 mm (1.97 in): Days with 50 mm or more rain3319953
10 cm (3.9 in): Days with 10 cm or more snowfall131120001
25 cm (9.8 in): Days with 25 cm or more snowfall6319991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

  • Data for St Ignace Mackinac Br 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 (2025-12-31).