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

Merrill Threshold Days by Year (USC00135414)

3 fixed thresholds counted per year at Merrill (USC00135414): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Merrill Thresholds

  • Merrill: days with 10 mm (0.39 in) or more of precipitation in 4 years, most in 1992 with 22.
  • Merrill: days with 25 mm (0.98 in) or more of precipitation in 4 years, most in 1992 with 9.
  • Merrill: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1988 with 1.
  • 3 fixed thresholds have at least one qualifying day at Merrill.
4 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Merrill Days per year at Merrill with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1992. 01020301988: 171989: 121992: 221993: 221988198919921993
Days per year at Merrill with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1992.
Days with 10 mm (0.39 in) or more of precipitation per year at Merrill
YearDaysDecade average
19881714.5
19891214.5
19922222
19932222
First to last qualifying date each year at Merrill For each year, a bar from the first to the last day at Merrill meeting 10 mm (0.39 in). 1988: 24 March 1988 to 28 November 19881989: 5 January 1989 to 11 December 19891992: 6 March 1992 to 2 November 19921993: 21 February 1993 to 16 October 19931988198919921993JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Merrill meeting 10 mm (0.39 in).
First to last qualifying date each year at Merrill
YearFirst dateLast date
19881988-03-241988-11-28
19891989-01-051989-12-11
19921992-03-061992-11-02
19931993-02-211993-10-16

Every Fixed Threshold

Fixed thresholds at Merrill
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain422199222
25 mm (0.98 in): Days with 25 mm or more rain4919926
50 mm (1.97 in): Days with 50 mm or more rain3119881

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Merrill 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).