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

Perungalur Threshold Days by Year (IN020132201)

5 fixed thresholds counted per year at Perungalur (IN020132201): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Perungalur Thresholds

  • Perungalur: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1954 with 37.
  • Perungalur: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1969 with 25.
  • Perungalur: days with 50 mm (1.97 in) or more of precipitation in 27 years, most in 1969 with 13.
  • Perungalur: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1969 with 5.
  • 5 fixed thresholds have at least one qualifying day at Perungalur.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Perungalur Days per year at Perungalur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1954. 0102030401938: 361939: 281940: 351941: 361942: 311943: 331944: 321945: 241946: 301947: 251948: 211949: 351950: 271951: 271952: 181953: 301954: 371955: 321956: 331957: 231958: 281959: 81960: 271961: 141962: 261963: 261964: 141966: 371967: 321968: 221969: 3319381942194619501954195819621967
Days per year at Perungalur with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1954.
Days with 10 mm (0.39 in) or more of precipitation per year at Perungalur
YearDaysDecade average
19383632
19392832
19403530.2
19413630.2
19423130.2
19433330.2
19443230.2
19452430.2
19463030.2
19472530.2
19482130.2
19493530.2
19502726.3
19512726.3
19521826.3
19533026.3
19543726.3
19553226.3
19563326.3
19572326.3
19582826.3
1959826.3
19602725.7
19611425.7
19622625.7
19632625.7
19641425.7
19663725.7
19673225.7
19682225.7
19693325.7
First to last qualifying date each year at Perungalur For each year, a bar from the first to the last day at Perungalur meeting 10 mm (0.39 in). 1938: 5 February 1938 to 28 December 19381939: 11 January 1939 to 22 November 19391940: 9 April 1940 to 5 December 19401941: 10 April 1941 to 22 December 19411942: 2 March 1942 to 21 December 19421943: 2 January 1943 to 14 December 19431944: 22 February 1944 to 13 December 19441945: 1 April 1945 to 20 November 19451946: 11 April 1946 to 27 December 19461947: 5 January 1947 to 23 October 19471948: 17 January 1948 to 17 December 19481949: 7 April 1949 to 27 November 19491950: 20 February 1950 to 14 December 19501951: 16 January 1951 to 29 November 19511952: 25 February 1952 to 10 December 19521953: 18 April 1953 to 15 December 19531954: 6 January 1954 to 26 December 19541955: 20 April 1955 to 8 December 19551956: 12 January 1956 to 26 December 19561957: 2 February 1957 to 29 December 19571958: 3 January 1958 to 23 November 19581959: 12 May 1959 to 27 October 19591960: 2 April 1960 to 23 November 19601961: 18 June 1961 to 5 December 19611962: 13 May 1962 to 4 December 19621963: 7 January 1963 to 10 December 19631964: 18 April 1964 to 24 December 19641966: 30 April 1966 to 21 December 19661967: 12 June 1967 to 8 December 19671968: 5 January 1968 to 18 December 19681969: 2 June 1969 to 31 December 196919381942194619501954195819621967JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Perungalur meeting 10 mm (0.39 in).
First to last qualifying date each year at Perungalur
YearFirst dateLast date
19381938-02-051938-12-28
19391939-01-111939-11-22
19401940-04-091940-12-05
19411941-04-101941-12-22
19421942-03-021942-12-21
19431943-01-021943-12-14
19441944-02-221944-12-13
19451945-04-011945-11-20
19461946-04-111946-12-27
19471947-01-051947-10-23
19481948-01-171948-12-17
19491949-04-071949-11-27
19501950-02-201950-12-14
19511951-01-161951-11-29
19521952-02-251952-12-10
19531953-04-181953-12-15
19541954-01-061954-12-26
19551955-04-201955-12-08
19561956-01-121956-12-26
19571957-02-021957-12-29
19581958-01-031958-11-23
19591959-05-121959-10-27
19601960-04-021960-11-23
19611961-06-181961-12-05
19621962-05-131962-12-04
19631963-01-071963-12-10
19641964-04-181964-12-24
19661966-04-301966-12-21
19671967-06-121967-12-08
19681968-01-051968-12-18
19691969-06-021969-12-31

Every Fixed Threshold

Fixed thresholds at Perungalur
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3137195433
25 mm (0.98 in): Days with 25 mm or more rain3125196925
50 mm (1.97 in): Days with 50 mm or more rain2713196913
100 mm (3.94 in): Days with 100 mm or more rain9519695
200 mm (7.87 in): Days with 200 mm or more rain1119391

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

  • Data for Perungalur 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).