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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Derby Rfds Threshold Days by Year

4 fixed thresholds counted per year at Derby Rfds (ASN00003075): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Derby Rfds Thresholds

  • Derby Rfds: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 2025 with 28.
  • Derby Rfds: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 2018 with 15.
  • Derby Rfds: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 2018 with 9.
  • Derby Rfds: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1986 with 2.
  • 4 fixed thresholds have at least one qualifying day at Derby Rfds.
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Derby Rfds Days per year at Derby Rfds with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 2025. 01020301984: 261985: 151986: 211987: 171988: 101989: 161990: 62013: 242014: 172015: 142016: 212018: 212019: 132020: 192021: 122022: 202023: 182024: 162025: 281984198619881990201420162019202120232025
Days per year at Derby Rfds with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 28 in 2025.
Days with 10 mm (0.39 in) or more of precipitation per year at Derby Rfds
YearDaysDecade average
19842617.5
19851517.5
19862117.5
19871717.5
19881017.5
19891617.5
199066
20132418.3
20141718.3
20151418.3
20162118.3
20182118.3
20191318.3
20201918.8
20211218.8
20222018.8
20231818.8
20241618.8
20252818.8
First to last qualifying date each year at Derby Rfds For each year, a bar from the first to the last day at Derby Rfds meeting 10 mm (0.39 in). 1984: 7 January 1984 to 22 December 19841985: 5 January 1985 to 22 April 19851986: 6 January 1986 to 20 November 19861987: 12 January 1987 to 23 December 19871988: 2 February 1988 to 29 December 19881989: 25 January 1989 to 27 December 19891990: 16 January 1990 to 22 October 19902013: 2 January 2013 to 30 December 20132014: 15 January 2014 to 26 December 20142015: 4 January 2015 to 7 March 20152016: 6 January 2016 to 27 December 20162018: 4 January 2018 to 6 December 20182019: 6 January 2019 to 24 December 20192020: 5 January 2020 to 21 December 20202021: 8 January 2021 to 22 December 20212022: 14 January 2022 to 30 December 20222023: 17 January 2023 to 22 June 20232024: 20 February 2024 to 20 December 20242025: 13 January 2025 to 31 December 20251984198719902015201920222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Derby Rfds meeting 10 mm (0.39 in).
First to last qualifying date each year at Derby Rfds
YearFirst dateLast date
19841984-01-071984-12-22
19851985-01-051985-04-22
19861986-01-061986-11-20
19871987-01-121987-12-23
19881988-02-021988-12-29
19891989-01-251989-12-27
19901990-01-161990-10-22
20132013-01-022013-12-30
20142014-01-152014-12-26
20152015-01-042015-03-07
20162016-01-062016-12-27
20182018-01-042018-12-06
20192019-01-062019-12-24
20202020-01-052020-12-21
20212021-01-082021-12-22
20222022-01-142022-12-30
20232023-01-172023-06-22
20242024-02-202024-12-20
20252025-01-132025-12-31

Every Fixed Threshold

Fixed thresholds at Derby Rfds
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1928202528
25 mm (0.98 in): Days with 25 mm or more rain191520188
50 mm (1.97 in): Days with 50 mm or more rain17920184
100 mm (3.94 in): Days with 100 mm or more rain9219862

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1984.

Download the Data

  • Data for Derby Rfds 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).