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

Umbakumba Threshold Days by Year

5 fixed thresholds counted per year at Umbakumba (ASN00014503): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Umbakumba Thresholds

  • Umbakumba: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1956 with 40.
  • Umbakumba: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1956 with 21.
  • Umbakumba: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1956 with 11.
  • Umbakumba: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1939 with 2.
  • 5 fixed thresholds have at least one qualifying day at Umbakumba.
19 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Umbakumba Days per year at Umbakumba with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1956. 0102030401939: 271940: 201941: 251942: 171943: 211944: 291947: 151948: 271949: 211950: 381951: 111952: 151953: 211954: 191955: 291956: 401957: 321969: 191971: 301939194119431947194919511953195519571971
Days per year at Umbakumba with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1956.
Days with 10 mm (0.39 in) or more of precipitation per year at Umbakumba
YearDaysDecade average
19392727
19402021.9
19412521.9
19421721.9
19432121.9
19442921.9
19471521.9
19482721.9
19492121.9
19503825.6
19511125.6
19521525.6
19532125.6
19541925.6
19552925.6
19564025.6
19573225.6
19691919
19713030
First to last qualifying date each year at Umbakumba For each year, a bar from the first to the last day at Umbakumba meeting 10 mm (0.39 in). 1939: 8 January 1939 to 20 December 19391940: 3 January 1940 to 29 December 19401941: 2 January 1941 to 21 November 19411942: 10 January 1942 to 25 December 19421943: 15 January 1943 to 18 December 19431944: 24 January 1944 to 26 December 19441947: 13 January 1947 to 4 December 19471948: 3 January 1948 to 30 December 19481949: 27 January 1949 to 29 December 19491950: 12 January 1950 to 11 December 19501951: 6 January 1951 to 1 May 19511952: 16 January 1952 to 28 November 19521953: 1 January 1953 to 23 December 19531954: 3 January 1954 to 15 December 19541955: 9 January 1955 to 26 November 19551956: 2 January 1956 to 30 December 19561957: 3 January 1957 to 25 December 19571969: 2 January 1969 to 27 March 19691971: 30 January 1971 to 4 December 19711939194219471950195319561971JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Umbakumba meeting 10 mm (0.39 in).
First to last qualifying date each year at Umbakumba
YearFirst dateLast date
19391939-01-081939-12-20
19401940-01-031940-12-29
19411941-01-021941-11-21
19421942-01-101942-12-25
19431943-01-151943-12-18
19441944-01-241944-12-26
19471947-01-131947-12-04
19481948-01-031948-12-30
19491949-01-271949-12-29
19501950-01-121950-12-11
19511951-01-061951-05-01
19521952-01-161952-11-28
19531953-01-011953-12-23
19541954-01-031954-12-15
19551955-01-091955-11-26
19561956-01-021956-12-30
19571957-01-031957-12-25
19691969-01-021969-03-27
19711971-01-301971-12-04

Every Fixed Threshold

Fixed thresholds at Umbakumba
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1940195630
25 mm (0.98 in): Days with 25 mm or more rain1921195613
50 mm (1.97 in): Days with 50 mm or more rain171119564
100 mm (3.94 in): Days with 100 mm or more rain10219391
200 mm (7.87 in): Days with 200 mm or more rain1119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Umbakumba 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).