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Built 2026-10-19 (19 October 2026)

Korosten Threshold Days by Year (UPM00033215)

10 fixed thresholds counted per year at Korosten (UPM00033215): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Korosten Thresholds

  • Korosten: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1977 with 29.
  • Korosten: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 1975 with 5.
  • Korosten: days with 50 mm (1.97 in) or more of precipitation in 10 years, most in 1960 with 1.
  • Korosten: days with a maximum temperature at or above 30 C (86 F) in 2 years, most in 2001 with 13.
  • 10 fixed thresholds have at least one qualifying day at Korosten.
24 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Korosten Days per year at Korosten with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1977. 01020301960: 171961: 101962: 231963: 71964: 121965: 151967: 91972: 101973: 161974: 171975: 181977: 291979: 151980: 301981: 241982: 151983: 131984: 131985: 151986: 171987: 131988: 141989: 141990: 1419601963196719741979198219851988
Days per year at Korosten with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 29 in 1977.
Days with 10 mm (0.39 in) or more of precipitation per year at Korosten
YearDaysDecade average
19601713.3
19611013.3
19622313.3
1963713.3
19641213.3
19651513.3
1967913.3
19721017.5
19731617.5
19741717.5
19751817.5
19772917.5
19791517.5
19803016.8
19812416.8
19821516.8
19831316.8
19841316.8
19851516.8
19861716.8
19871316.8
19881416.8
19891416.8
19901414
First to last qualifying date each year at Korosten For each year, a bar from the first to the last day at Korosten meeting 10 mm (0.39 in). 1960: 13 January 1960 to 24 December 19601961: 3 February 1961 to 13 November 19611962: 14 February 1962 to 22 November 19621963: 13 March 1963 to 17 December 19631964: 1 May 1964 to 2 December 19641965: 5 January 1965 to 12 December 19651967: 23 January 1967 to 10 December 19671972: 29 January 1972 to 23 October 19721973: 18 February 1973 to 1 December 19731974: 8 June 1974 to 27 November 19741975: 2 April 1975 to 18 December 19751977: 27 January 1977 to 27 November 19771979: 15 January 1979 to 7 November 19791980: 1 January 1980 to 3 December 19801981: 21 January 1981 to 26 December 19811982: 26 February 1982 to 9 September 19821983: 12 February 1983 to 29 November 19831984: 21 January 1984 to 5 October 19841985: 6 January 1985 to 4 December 19851986: 8 January 1986 to 31 August 19861987: 12 January 1987 to 30 December 19871988: 19 May 1988 to 7 September 19881989: 27 February 1989 to 10 September 19891990: 8 April 1990 to 13 December 199019601963196719741979198219851988JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Korosten meeting 10 mm (0.39 in).
First to last qualifying date each year at Korosten
YearFirst dateLast date
19601960-01-131960-12-24
19611961-02-031961-11-13
19621962-02-141962-11-22
19631963-03-131963-12-17
19641964-05-011964-12-02
19651965-01-051965-12-12
19671967-01-231967-12-10
19721972-01-291972-10-23
19731973-02-181973-12-01
19741974-06-081974-11-27
19751975-04-021975-12-18
19771977-01-271977-11-27
19791979-01-151979-11-07
19801980-01-011980-12-03
19811981-01-211981-12-26
19821982-02-261982-09-09
19831983-02-121983-11-29
19841984-01-211984-10-05
19851985-01-061985-12-04
19861986-01-081986-08-31
19871987-01-121987-12-30
19881988-05-191988-09-07
19891989-02-271989-09-10
19901990-04-081990-12-13

Every Fixed Threshold

Fixed thresholds at Korosten
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days21320014
90 F (32.2 C): Days1420014
0 C (32 F): Ice days (max252200147
0 C (32 F): Frost days (min21162003116
-10 C (14 F): Days with min223200122
-20 C (-4 F): Days with min2220032
20 C (68 F): Tropical nights (min1720017
10 mm (0.39 in): Days with 10 mm or more rain2429197714
25 mm (0.98 in): Days with 25 mm or more rain20519751
50 mm (1.97 in): Days with 50 mm or more rain10119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2001.

Download the Data

  • Data for Korosten 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).