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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Assab Threshold Days by Year (ER000063043)

12 fixed thresholds counted per year at Assab (ER000063043): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Assab Thresholds

  • Assab: nights with a minimum temperature at or above 20 C (68 F) in 33 years, most in 1952 with 366.
  • Assab: nights with a minimum temperature at or above 25 C (77 F) in 33 years, most in 1947 with 275.
  • Assab: days with a maximum temperature at or above 30 C (86 F) in 30 years, most in 1961 with 362.
  • Assab: days with a maximum temperature at or above 35 C (95 F) in 30 years, most in 1962 with 262.
  • 12 fixed thresholds have at least one qualifying day at Assab.
30 years with a qualifying day
Days at or above 30 C (86 F) per year at Assab Days per year at Assab with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 362 in 1961. 01002003004001947: 2661949: 2481950: 2391951: 2531952: 2521953: 2601954: 2351955: 2681956: 2671957: 2891958: 3581961: 3621962: 3541963: 3611964: 3551965: 3601966: 3511967: 3271968: 3121969: 3601970: 3621971: 3391972: 3571973: 3541974: 3551975: 3601979: 3541980: 3621983: 3351984: 3241947195119541957196219651968197119741980
Days per year at Assab with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 362 in 1961.
Days at or above 30 C (86 F) per year at Assab
YearDaysDecade average
1947266257
1949248257
1950239269
1951253269
1952252269
1953260269
1954235269
1955268269
1956267269
1957289269
1958358269
1961362349.1
1962354349.1
1963361349.1
1964355349.1
1965360349.1
1966351349.1
1967327349.1
1968312349.1
1969360349.1
1970362354.4
1971339354.4
1972357354.4
1973354354.4
1974355354.4
1975360354.4
1979354354.4
1980362340.3
1983335340.3
1984324340.3
First to last qualifying date each year at Assab For each year, a bar from the first to the last day at Assab meeting 30 C (86 F). 1947: 2 February 1947 to 30 November 19471949: 2 March 1949 to 2 December 19491950: 6 February 1950 to 29 November 19501951: 19 February 1951 to 9 December 19511952: 8 February 1952 to 28 November 19521953: 12 February 1953 to 19 December 19531954: 5 January 1954 to 8 December 19541955: 1 January 1955 to 19 December 19551956: 25 January 1956 to 3 December 19561957: 5 February 1957 to 31 December 19571958: 1 January 1958 to 31 December 19581961: 1 January 1961 to 31 December 19611962: 1 January 1962 to 31 December 19621963: 1 January 1963 to 31 December 19631964: 1 January 1964 to 30 December 19641965: 4 January 1965 to 31 December 19651966: 1 January 1966 to 30 December 19661967: 1 January 1967 to 30 November 19671968: 1 January 1968 to 30 November 19681969: 1 January 1969 to 31 December 19691970: 1 January 1970 to 31 December 19701971: 3 January 1971 to 28 December 19711972: 1 January 1972 to 31 December 19721973: 1 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 30 December 19751979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801983: 1 January 1983 to 31 December 19831984: 1 January 1984 to 31 December 198419471952195619621966197019741983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Assab meeting 30 C (86 F).
First to last qualifying date each year at Assab
YearFirst dateLast date
19471947-02-021947-11-30
19491949-03-021949-12-02
19501950-02-061950-11-29
19511951-02-191951-12-09
19521952-02-081952-11-28
19531953-02-121953-12-19
19541954-01-051954-12-08
19551955-01-011955-12-19
19561956-01-251956-12-03
19571957-02-051957-12-31
19581958-01-011958-12-31
19611961-01-011961-12-31
19621962-01-011962-12-31
19631963-01-011963-12-31
19641964-01-011964-12-30
19651965-01-041965-12-31
19661966-01-011966-12-30
19671967-01-011967-11-30
19681968-01-011968-11-30
19691969-01-011969-12-31
19701970-01-011970-12-31
19711971-01-031971-12-28
19721972-01-011972-12-31
19731973-01-011973-12-31
19741974-01-011974-12-31
19751975-01-011975-12-30
19791979-01-011979-12-31
19801980-01-011980-12-31
19831983-01-011983-12-31
19841984-01-011984-12-31

Every Fixed Threshold

Fixed thresholds at Assab
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days303621961324
35 C (95 F): Days302621962189
40 C (104 F): Days3061196231
45 C (113 F): Days1119621
90 F (32.2 C): Days303201975264
100 F (37.8 C): Days30150196299
110 F (43.3 C): Days8519703
20 C (68 F): Tropical nights (min333661952335
25 C (77 F): Days with min332751947207
10 mm (0.39 in): Days with 10 mm or more rain22619511
25 mm (0.98 in): Days with 25 mm or more rain13319672
50 mm (1.97 in): Days with 50 mm or more rain4119511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1947.

Download the Data

  • Data for Assab 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 (2025-12-31).