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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Sumiha Threshold Days by Year (RSM00028655)

6 fixed thresholds counted per year at Sumiha (RSM00028655): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sumiha Thresholds

  • Sumiha: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1946 with 23.
  • Sumiha: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1944 with 3.
  • Sumiha: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1936 with 1.
  • Sumiha: days with a maximum temperature at or above 30 C (86 F) in 4 years, most in 1996 with 17.
  • 6 fixed thresholds have at least one qualifying day at Sumiha.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Sumiha Days per year at Sumiha with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 1996. 051015201996: 172008: 102009: 62011: 131996200820092011
Days per year at Sumiha with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 17 in 1996.
Days at or above 30 C (86 F) per year at Sumiha
YearDaysDecade average
19961717
2008108
200968
20111313
First to last qualifying date each year at Sumiha For each year, a bar from the first to the last day at Sumiha meeting 30 C (86 F). 1996: 9 May 1996 to 21 July 19962008: 19 June 2008 to 13 August 20082009: 5 June 2009 to 19 June 20092011: 4 July 2011 to 6 September 20111996200820092011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sumiha meeting 30 C (86 F).
First to last qualifying date each year at Sumiha
YearFirst dateLast date
19961996-05-091996-07-21
20082008-06-192008-08-13
20092009-06-052009-06-19
20112011-07-042011-09-06

Every Fixed Threshold

Fixed thresholds at Sumiha
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days417199613
90 F (32.2 C): Days4819964
0 C (32 F): Ice days (max41182011118
10 mm (0.39 in): Days with 10 mm or more rain592319468
25 mm (0.98 in): Days with 25 mm or more rain43319441
50 mm (1.97 in): Days with 50 mm or more rain6119362

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Sumiha 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).