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Built 2026-10-19 (19 October 2026)

Calcutta/Dum Dum Threshold Days by Year (IN024141500)

14 fixed thresholds counted per year at Calcutta/Dum Dum (IN024141500): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calcutta/Dum Dum Thresholds

  • Calcutta/Dum Dum: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1980 with 54.
  • Calcutta/Dum Dum: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1968 with 28.
  • Calcutta/Dum Dum: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1970 with 13.
  • Calcutta/Dum Dum: days with a maximum temperature at or above 30 C (86 F) in 19 years, most in 2006 with 263.
  • 14 fixed thresholds have at least one qualifying day at Calcutta/Dum Dum.
19 years with a qualifying day
Days at or above 30 C (86 F) per year at Calcutta/Dum Dum Days per year at Calcutta/Dum Dum with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 263 in 2006. 01002003001978: 2451979: 2621980: 2571981: 2451982: 2421983: 2311984: 2291985: 2421987: 2351991: 2381992: 2231993: 2411994: 2321995: 2382005: 2412006: 2632007: 2302012: 2492025: 1661978198019821984198719921994200520072025
Days per year at Calcutta/Dum Dum with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 263 in 2006.
Days at or above 30 C (86 F) per year at Calcutta/Dum Dum
YearDaysDecade average
1978245253.5
1979262253.5
1980257240.1
1981245240.1
1982242240.1
1983231240.1
1984229240.1
1985242240.1
1987235240.1
1991238234.4
1992223234.4
1993241234.4
1994232234.4
1995238234.4
2005241244.7
2006263244.7
2007230244.7
2012249249
2025166166
First to last qualifying date each year at Calcutta/Dum Dum For each year, a bar from the first to the last day at Calcutta/Dum Dum meeting 30 C (86 F). 1978: 30 January 1978 to 27 November 19781979: 18 January 1979 to 29 November 19791980: 27 January 1980 to 24 November 19801981: 30 January 1981 to 22 November 19811982: 13 February 1982 to 20 November 19821983: 14 February 1983 to 28 November 19831984: 3 February 1984 to 14 December 19841985: 5 February 1985 to 18 December 19851987: 13 February 1987 to 18 November 19871991: 1 February 1991 to 13 November 19911992: 14 February 1992 to 23 November 19921993: 8 January 1993 to 1 December 19931994: 29 January 1994 to 11 December 19941995: 12 February 1995 to 16 November 19952005: 6 February 2005 to 24 November 20052006: 17 January 2006 to 11 December 20062007: 28 January 2007 to 24 November 20072012: 6 February 2012 to 20 November 20122025: 5 February 2025 to 19 August 20251978198119841991199420062025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Calcutta/Dum Dum meeting 30 C (86 F).
First to last qualifying date each year at Calcutta/Dum Dum
YearFirst dateLast date
19781978-01-301978-11-27
19791979-01-181979-11-29
19801980-01-271980-11-24
19811981-01-301981-11-22
19821982-02-131982-11-20
19831983-02-141983-11-28
19841984-02-031984-12-14
19851985-02-051985-12-18
19871987-02-131987-11-18
19911991-02-011991-11-13
19921992-02-141992-11-23
19931993-01-081993-12-01
19941994-01-291994-12-11
19951995-02-121995-11-16
20052005-02-062005-11-24
20062006-01-172006-12-11
20072007-01-282007-11-24
20122012-02-062012-11-20
20252025-02-052025-08-19

Every Fixed Threshold

Fixed thresholds at Calcutta/Dum Dum
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days192632006166
35 C (95 F): Days19105201273
40 C (104 F): Days121519795
45 C (113 F): Days1119791
90 F (32.2 C): Days192192012132
100 F (37.8 C): Days1932201211
110 F (43.3 C): Days1319793
20 C (68 F): Tropical nights (min10n/a107
25 C (77 F): Days with min10n/a79
10 mm (0.39 in): Days with 10 mm or more rain2754198031
25 mm (0.98 in): Days with 25 mm or more rain2728196812
50 mm (1.97 in): Days with 50 mm or more rain271319705
100 mm (3.94 in): Days with 100 mm or more rain16319561
200 mm (7.87 in): Days with 200 mm or more rain3219801

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1978.

Download the Data

  • Data for Calcutta/Dum Dum 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).