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

Irht Threshold Days by Year (TI000038869)

5 fixed thresholds counted per year at Irht (TI000038869): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Irht Thresholds

  • Irht: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1948 with 3.
  • Irht: days with a maximum temperature at or below 0 C (32 F) in 2 years, most in 2014 with 91.
  • 5 fixed thresholds have at least one qualifying day at Irht.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Irht Days per year at Irht with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 3 in 1948. 012341941: 21942: 21944: 11945: 11946: 21948: 31950: 21958: 31959: 31960: 11962: 11965: 21967: 11968: 21969: 21972: 11973: 11974: 11975: 11977: 31979: 11980: 21981: 11982: 21984: 11985: 41986: 41987: 31990: 11941194519501960196719721975198019841987
Days per year at Irht with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 3 in 1948.
Days with 10 mm (0.39 in) or more of precipitation per year at Irht
YearDaysDecade average
194121.8
194221.8
194411.8
194511.8
194621.8
194831.8
195022.7
195832.7
195932.7
196011.5
196211.5
196521.5
196711.5
196821.5
196921.5
197211.3
197311.3
197411.3
197511.3
197731.3
197911.3
198022.4
198112.4
198222.4
198412.4
198542.4
198642.4
198732.4
199011
First to last qualifying date each year at Irht For each year, a bar from the first to the last day at Irht meeting 10 mm (0.39 in). 1941: 25 March 1941 to 8 May 19411942: 17 June 1942 to 23 July 19421944: 6 October 1944 to 6 October 19441945: 15 March 1945 to 15 March 19451946: 2 February 1946 to 3 April 19461948: 27 April 1948 to 15 December 19481950: 6 August 1950 to 16 August 19501958: 21 April 1958 to 25 April 19581959: 25 January 1959 to 4 May 19591960: 12 April 1960 to 12 April 19601962: 26 April 1962 to 26 April 19621965: 18 January 1965 to 1 August 19651967: 10 March 1967 to 10 March 19671968: 21 May 1968 to 12 August 19681969: 24 January 1969 to 15 April 19691972: 23 February 1972 to 23 February 19721973: 21 April 1973 to 21 April 19731974: 1 June 1974 to 1 June 19741975: 15 August 1975 to 15 August 19751977: 10 January 1977 to 2 November 19771979: 28 April 1979 to 28 April 19791980: 22 May 1980 to 28 August 19801981: 14 April 1981 to 14 April 19811982: 23 June 1982 to 24 June 19821984: 13 April 1984 to 13 April 19841985: 2 June 1985 to 22 December 19851986: 25 April 1986 to 6 September 19861987: 21 April 1987 to 28 October 19871990: 19 March 1990 to 19 March 199019411946195919671973197919841990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Irht meeting 10 mm (0.39 in).
First to last qualifying date each year at Irht
YearFirst dateLast date
19411941-03-251941-05-08
19421942-06-171942-07-23
19441944-10-061944-10-06
19451945-03-151945-03-15
19461946-02-021946-04-03
19481948-04-271948-12-15
19501950-08-061950-08-16
19581958-04-211958-04-25
19591959-01-251959-05-04
19601960-04-121960-04-12
19621962-04-261962-04-26
19651965-01-181965-08-01
19671967-03-101967-03-10
19681968-05-211968-08-12
19691969-01-241969-04-15
19721972-02-231972-02-23
19731973-04-211973-04-21
19741974-06-011974-06-01
19751975-08-151975-08-15
19771977-01-101977-11-02
19791979-04-281979-04-28
19801980-05-221980-08-28
19811981-04-141981-04-14
19821982-06-231982-06-24
19841984-04-131984-04-13
19851985-06-021985-12-22
19861986-04-251986-09-06
19871987-04-211987-10-28
19901990-03-191990-03-19

Every Fixed Threshold

Fixed thresholds at Irht
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max291201467
0 C (32 F): Frost days (min10n/a98
-10 C (14 F): Days with min10n/a57
-20 C (-4 F): Days with min10n/a2
10 mm (0.39 in): Days with 10 mm or more rain29319481

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2014.

Download the Data

  • Data for Irht 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 (2026-10-12).