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

Holm Threshold Days by Year (RSM00026378)

11 fixed thresholds counted per year at Holm (RSM00026378): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Holm Thresholds

  • Holm: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 2025 with 58.
  • Holm: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 2025 with 16.
  • Holm: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 2025 with 3.
  • Holm: days with a maximum temperature at or above 30 C (86 F) in 4 years, most in 2020 with 9.
  • 11 fixed thresholds have at least one qualifying day at Holm.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Holm Days per year at Holm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 2020. 0358101969: 52020: 92025: 12026: 11969202020252026
Days per year at Holm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 9 in 2020.
Days at or above 30 C (86 F) per year at Holm
YearDaysDecade average
196955
202093.7
202513.7
202613.7
First to last qualifying date each year at Holm For each year, a bar from the first to the last day at Holm meeting 30 C (86 F). 1969: 8 July 1969 to 29 August 19692020: 8 June 2020 to 27 June 20202025: 11 July 2025 to 11 July 20252026: 19 May 2026 to 19 May 20261969202020252026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Holm meeting 30 C (86 F).
First to last qualifying date each year at Holm
YearFirst dateLast date
19691969-07-081969-08-29
20202020-06-082020-06-27
20252025-07-112025-07-11
20262026-05-192026-05-19

Every Fixed Threshold

Fixed thresholds at Holm
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4920201
90 F (32.2 C): Days2420204
0 C (32 F): Ice days (max487196948
0 C (32 F): Frost days (min2124202586
-10 C (14 F): Days with min212202537
-20 C (-4 F): Days with min10n/a15
-30 C (-22 F): Days with min10n/a4
10 mm (0.39 in): Days with 10 mm or more rain565820254
25 mm (0.98 in): Days with 25 mm or more rain4116202516
50 mm (1.97 in): Days with 50 mm or more rain8320253
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Holm 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).