Built 2026-10-19 (19 October 2026)

Troickoe Threshold Days by Year (RSM00031655)

14 fixed thresholds counted per year at Troickoe (RSM00031655): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Troickoe Thresholds

  • Troickoe: days with 10 mm (0.39 in) or more of precipitation in 62 years, most in 1981 with 31.
  • Troickoe: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1981 with 11.
  • Troickoe: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 1979 with 149.
  • Troickoe: days with a maximum temperature at or above 30 C (86 F) in 44 years, most in 1975 with 32.
  • 14 fixed thresholds have at least one qualifying day at Troickoe.
44 years with a qualifying day
Days at or above 30 C (86 F) per year at Troickoe Days per year at Troickoe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1975. 0102030401961: 21963: 41964: 11967: 41968: 131969: 61970: 81973: 81974: 161975: 321976: 51977: 71978: 31979: 81980: 211981: 21982: 211983: 21984: 31985: 21986: 121987: 51988: 171989: 81990: 91992: 51994: 41996: 141997: 71998: 122001: 72007: 172008: 182009: 32010: 92011: 182012: 112015: 42016: 62017: 72018: 12019: 42020: 82025: 14196119691976198119861992200120112018
Days per year at Troickoe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 32 in 1975.
Days at or above 30 C (86 F) per year at Troickoe
YearDaysDecade average
196125
196345
196415
196745
1968135
196965
1970810.9
1973810.9
19741610.9
19753210.9
1976510.9
1977710.9
1978310.9
1979810.9
1980219.3
198129.3
1982219.3
198329.3
198439.3
198529.3
1986129.3
198759.3
1988179.3
198989.3
199098.5
199258.5
199448.5
1996148.5
199778.5
1998128.5
2001711.3
20071711.3
20081811.3
2009311.3
201097.5
2011187.5
2012117.5
201547.5
201667.5
201777.5
201817.5
201947.5
2020811
20251411
First to last qualifying date each year at Troickoe For each year, a bar from the first to the last day at Troickoe meeting 30 C (86 F). 1961: 3 June 1961 to 28 June 19611963: 2 July 1963 to 26 July 19631964: 4 July 1964 to 4 July 19641967: 9 July 1967 to 2 August 19671968: 25 June 1968 to 11 August 19681969: 21 June 1969 to 21 July 19691970: 2 July 1970 to 25 August 19701973: 13 June 1973 to 7 August 19731974: 7 June 1974 to 1 August 19741975: 27 May 1975 to 30 August 19751976: 14 July 1976 to 24 July 19761977: 12 May 1977 to 30 August 19771978: 14 June 1978 to 8 July 19781979: 21 June 1979 to 11 August 19791980: 28 June 1980 to 4 August 19801981: 13 July 1981 to 16 July 19811982: 30 June 1982 to 26 August 19821983: 25 July 1983 to 26 July 19831984: 21 May 1984 to 9 August 19841985: 24 May 1985 to 5 July 19851986: 5 June 1986 to 26 July 19861987: 1 June 1987 to 26 June 19871988: 21 June 1988 to 7 August 19881989: 25 June 1989 to 7 August 19891990: 30 June 1990 to 20 July 19901992: 25 June 1992 to 29 June 19921994: 18 July 1994 to 1 September 19941996: 9 July 1996 to 24 July 19961997: 19 June 1997 to 27 July 19971998: 16 May 1998 to 3 August 19982001: 13 May 2001 to 14 August 20012007: 1 June 2007 to 7 August 20072008: 17 June 2008 to 29 July 20082009: 21 May 2009 to 10 August 20092010: 11 June 2010 to 30 June 20102011: 1 July 2011 to 8 August 20112012: 22 May 2012 to 7 August 20122015: 11 July 2015 to 14 August 20152016: 20 May 2016 to 23 July 20162017: 3 July 2017 to 9 July 20172018: 29 July 2018 to 29 July 20182019: 8 July 2019 to 22 July 20192020: 29 May 2020 to 4 September 20202025: 31 May 2025 to 28 July 202519611970197819841990200120122020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Troickoe meeting 30 C (86 F).
First to last qualifying date each year at Troickoe
YearFirst dateLast date
19611961-06-031961-06-28
19631963-07-021963-07-26
19641964-07-041964-07-04
19671967-07-091967-08-02
19681968-06-251968-08-11
19691969-06-211969-07-21
19701970-07-021970-08-25
19731973-06-131973-08-07
19741974-06-071974-08-01
19751975-05-271975-08-30
19761976-07-141976-07-24
19771977-05-121977-08-30
19781978-06-141978-07-08
19791979-06-211979-08-11
19801980-06-281980-08-04
19811981-07-131981-07-16
19821982-06-301982-08-26
19831983-07-251983-07-26
19841984-05-211984-08-09
19851985-05-241985-07-05
19861986-06-051986-07-26
19871987-06-011987-06-26
19881988-06-211988-08-07
19891989-06-251989-08-07
19901990-06-301990-07-20
19921992-06-251992-06-29
19941994-07-181994-09-01
19961996-07-091996-07-24
19971997-06-191997-07-27
19981998-05-161998-08-03
20012001-05-132001-08-14
20072007-06-012007-08-07
20082008-06-172008-07-29
20092009-05-212009-08-10
20102010-06-112010-06-30
20112011-07-012011-08-08
20122012-05-222012-08-07
20152015-07-112015-08-14
20162016-05-202016-07-23
20172017-07-032017-07-09
20182018-07-292018-07-29
20192019-07-082019-07-22
20202020-05-292020-09-04
20252025-05-312025-07-28

Every Fixed Threshold

Fixed thresholds at Troickoe
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4432197514
35 C (95 F): Days4319741
90 F (32.2 C): Days23920073
100 F (37.8 C): Days1119821
0 C (32 F): Ice days (max45149197976
0 C (32 F): Frost days (min15207197778
-10 C (14 F): Days with min15137197461
-20 C (-4 F): Days with min1593197436
-30 C (-22 F): Days with min153619775
-40 C (-40 F): Days with min3319761
20 C (68 F): Tropical nights (min1511201619
10 mm (0.39 in): Days with 10 mm or more rain6231198118
25 mm (0.98 in): Days with 25 mm or more rain621119813
50 mm (1.97 in): Days with 50 mm or more rain24219611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.

Download the Data

  • Data for Troickoe 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).