Daily records
Page built 2026-10-19
Data as of 2026-10-17
Search
Built 2026-10-19 (19 October 2026)

Risdon Threshold Days by Year (ASN00094056)

11 fixed thresholds counted per year at Risdon (ASN00094056): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Risdon Thresholds

  • Risdon: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1947 with 26.
  • Risdon: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1975 with 7.
  • Risdon: days with 50 mm (1.97 in) or more of precipitation in 23 years, most in 1946 with 3.
  • Risdon: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 1961 with 11.
  • 11 fixed thresholds have at least one qualifying day at Risdon.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at Risdon Days per year at Risdon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 1961. 0510151957: 71958: 51959: 91960: 91961: 111962: 71963: 61964: 31965: 81966: 61967: 91968: 81969: 51974: 111975: 71976: 71977: 6195719591961196319651967196919751977
Days per year at Risdon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 1961.
Days at or above 30 C (86 F) per year at Risdon
YearDaysDecade average
195777
195857
195997
196097.2
1961117.2
196277.2
196367.2
196437.2
196587.2
196667.2
196797.2
196887.2
196957.2
1974117.8
197577.8
197677.8
197767.8
First to last qualifying date each year at Risdon For each year, a bar from the first to the last day at Risdon meeting 30 C (86 F). 1957: 12 January 1957 to 28 December 19571958: 9 January 1958 to 9 December 19581959: 17 January 1959 to 21 November 19591960: 7 January 1960 to 27 December 19601961: 7 January 1961 to 28 December 19611962: 16 January 1962 to 23 December 19621963: 12 January 1963 to 5 December 19631964: 6 January 1964 to 30 November 19641965: 17 January 1965 to 22 December 19651966: 12 January 1966 to 25 December 19661967: 6 January 1967 to 17 March 19671968: 23 January 1968 to 18 March 19681969: 22 January 1969 to 11 March 19691974: 19 January 1974 to 11 March 19741975: 31 January 1975 to 28 December 19751976: 4 January 1976 to 22 December 19761977: 13 January 1977 to 26 November 1977195719601963196619691976JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Risdon meeting 30 C (86 F).
First to last qualifying date each year at Risdon
YearFirst dateLast date
19571957-01-121957-12-28
19581958-01-091958-12-09
19591959-01-171959-11-21
19601960-01-071960-12-27
19611961-01-071961-12-28
19621962-01-161962-12-23
19631963-01-121963-12-05
19641964-01-061964-11-30
19651965-01-171965-12-22
19661966-01-121966-12-25
19671967-01-061967-03-17
19681968-01-231968-03-18
19691969-01-221969-03-11
19741974-01-191974-03-11
19751975-01-311975-12-28
19761976-01-041976-12-22
19771977-01-131977-11-26

Every Fixed Threshold

Fixed thresholds at Risdon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days171119616
35 C (95 F): Days14419601
90 F (32.2 C): Days17719612
100 F (37.8 C): Days3119591
0 C (32 F): Frost days (min15919573
20 C (68 F): Tropical nights (min6319752
25 C (77 F): Days with min1119621
10 mm (0.39 in): Days with 10 mm or more rain5426194712
25 mm (0.98 in): Days with 25 mm or more rain47719752
50 mm (1.97 in): Days with 50 mm or more rain23319461
100 mm (3.94 in): Days with 100 mm or more rain2119541

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

  • Data for Risdon 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).