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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Royles Threshold Days by Year

4 fixed thresholds counted per year at Royles (ASN00034071): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Royles Thresholds

  • Royles: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 1956 with 32.
  • Royles: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1950 with 15.
  • Royles: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1950 with 6.
  • Royles: days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1951 with 2.
  • 4 fixed thresholds have at least one qualifying day at Royles.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Royles Days per year at Royles with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1956. 0102030401942: 191943: 251944: 181945: 121946: 171947: 221948: 111949: 181950: 301951: 131952: 221953: 211954: 181955: 311956: 321957: 131958: 241959: 131960: 151961: 141962: 141963: 221964: 201965: 141966: 211967: 171968: 201969: 91972: 91942194519481951195419571960196319661969
Days per year at Royles with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1956.
Days with 10 mm (0.39 in) or more of precipitation per year at Royles
YearDaysDecade average
19421917.8
19432517.8
19441817.8
19451217.8
19461717.8
19472217.8
19481117.8
19491817.8
19503021.7
19511321.7
19522221.7
19532121.7
19541821.7
19553121.7
19563221.7
19571321.7
19582421.7
19591321.7
19601516.6
19611416.6
19621416.6
19632216.6
19642016.6
19651416.6
19662116.6
19671716.6
19682016.6
1969916.6
197299
First to last qualifying date each year at Royles For each year, a bar from the first to the last day at Royles meeting 10 mm (0.39 in). 1942: 30 January 1942 to 31 December 19421943: 2 January 1943 to 30 December 19431944: 7 January 1944 to 29 December 19441945: 17 January 1945 to 3 December 19451946: 7 January 1946 to 30 December 19461947: 1 February 1947 to 15 December 19471948: 12 February 1948 to 31 December 19481949: 10 January 1949 to 11 December 19491950: 18 January 1950 to 5 December 19501951: 11 January 1951 to 28 December 19511952: 9 January 1952 to 22 December 19521953: 20 January 1953 to 25 December 19531954: 3 January 1954 to 19 December 19541955: 20 January 1955 to 22 December 19551956: 18 January 1956 to 28 December 19561957: 11 January 1957 to 12 December 19571958: 2 January 1958 to 21 December 19581959: 12 January 1959 to 5 December 19591960: 18 January 1960 to 26 December 19601961: 3 January 1961 to 24 December 19611962: 9 January 1962 to 31 December 19621963: 8 January 1963 to 18 December 19631964: 2 January 1964 to 26 December 19641965: 23 January 1965 to 15 December 19651966: 3 January 1966 to 11 December 19661967: 6 January 1967 to 23 December 19671968: 8 January 1968 to 17 December 19681969: 19 January 1969 to 18 November 19691972: 19 January 1972 to 12 November 197219421946195019541958196219661972JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Royles meeting 10 mm (0.39 in).
First to last qualifying date each year at Royles
YearFirst dateLast date
19421942-01-301942-12-31
19431943-01-021943-12-30
19441944-01-071944-12-29
19451945-01-171945-12-03
19461946-01-071946-12-30
19471947-02-011947-12-15
19481948-02-121948-12-31
19491949-01-101949-12-11
19501950-01-181950-12-05
19511951-01-111951-12-28
19521952-01-091952-12-22
19531953-01-201953-12-25
19541954-01-031954-12-19
19551955-01-201955-12-22
19561956-01-181956-12-28
19571957-01-111957-12-12
19581958-01-021958-12-21
19591959-01-121959-12-05
19601960-01-181960-12-26
19611961-01-031961-12-24
19621962-01-091962-12-31
19631963-01-081963-12-18
19641964-01-021964-12-26
19651965-01-231965-12-15
19661966-01-031966-12-11
19671967-01-061967-12-23
19681968-01-081968-12-17
19691969-01-191969-11-18
19721972-01-191972-11-12

Every Fixed Threshold

Fixed thresholds at Royles
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain293219569
25 mm (0.98 in): Days with 25 mm or more rain291519502
50 mm (1.97 in): Days with 50 mm or more rain25619501
100 mm (3.94 in): Days with 100 mm or more rain8219511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Royles 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

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