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

Armagh Threshold Days by Year (UK000047811)

7 fixed thresholds counted per year at Armagh (UK000047811): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Armagh Thresholds

  • Armagh: days with 10 mm (0.39 in) or more of precipitation in 188 years, most in 1852 with 38.
  • Armagh: nights with a minimum temperature at or below 0 C (32 F) in 183 years, most in 2010 with 89.
  • Armagh: days with 25 mm (0.98 in) or more of precipitation in 147 years, most in 1865 with 8.
  • Armagh: days with a maximum temperature at or below 0 C (32 F) in 68 years, most in 1881 with 13.
  • 7 fixed thresholds have at least one qualifying day at Armagh.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Armagh Days per year at Armagh with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2018. 011221934: 11983: 11989: 12018: 22021: 22022: 1193419831989201820212022
Days per year at Armagh with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 2018.
Days at or above 30 C (86 F) per year at Armagh
YearDaysDecade average
193411
198311
198911
201822
202121.5
202211.5
First to last qualifying date each year at Armagh For each year, a bar from the first to the last day at Armagh meeting 30 C (86 F). 1934: 10 July 1934 to 10 July 19341983: 13 July 1983 to 13 July 19831989: 19 June 1989 to 19 June 19892018: 26 June 2018 to 27 June 20182021: 20 July 2021 to 21 July 20212022: 17 July 2022 to 17 July 2022193419831989201820212022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Armagh meeting 30 C (86 F).
First to last qualifying date each year at Armagh
YearFirst dateLast date
19341934-07-101934-07-10
19831983-07-131983-07-13
19891989-06-191989-06-19
20182018-06-262018-06-27
20212021-07-202021-07-21
20222022-07-172022-07-17

Every Fixed Threshold

Fixed thresholds at Armagh
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days6220181
0 C (32 F): Ice days (max681318812
0 C (32 F): Frost days (min18389201017
-10 C (14 F): Days with min20618954
10 mm (0.39 in): Days with 10 mm or more rain18838185213
25 mm (0.98 in): Days with 25 mm or more rain147818651
50 mm (1.97 in): Days with 50 mm or more rain7219291

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1934.

Download the Data

  • Data for Armagh 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).