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Nannilam Weather Records (IN020120500)

Record envelope, standing records and threshold days for Nannilam (IN020120500), India, with 70 years of record.

Key Facts for Nannilam

  • Nannilam (IN020120500) is a weather station in India at 10.88 latitude and 79.62 longitude, 18 m (59 ft) above sea level.
  • The station reports from 1901 to 1970, 70 years of record.
  • 0 records set at Nannilam still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Nannilam set a daily record precipitation of 78.0 mm (3.1 in) on 23 November 1970.

About the Station

  • Location: India, 10.88 latitude, 79.62 longitude.
  • Elevation: 18 m (59 ft).
  • Period of record: 1901 to 1970, 70 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Nannilam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Nannilam. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Nannilam. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Nannilam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
Mayn/an/an/an/a
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Juln/an/an/an/a
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Octn/an/an/an/a
Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Nannilam by the year they were set 0 records at Nannilam still stand. 00000000000
0 records at Nannilam still stand.
Standing records at Nannilam by the year they were set
Year setStanding records

All-Time Record Progression

1 new records
When Nannilam set new all-time records 1 all-time records were set at Nannilam between 10 December 1954 and 10 December 1954. Each dot is a new record. Record daily precipitation10 December 1954: Record daily precipitation 291.3 mm (11.5 in)1955
1 all-time records were set at Nannilam between 10 December 1954 and 10 December 1954. Each dot is a new record.
When Nannilam set new all-time records
DateKindDetail
1954-12-10Record daily precipitationRecord daily precipitation 291.3 mm (11.5 in)

Wettest Day of Each Month

Dec: 291.3 mm (11.5 in)
Record daily precipitation for each month at Nannilam The wettest day on record for each calendar month at Nannilam. The most was 291.3 mm (11.5 in) on 10 December 1954. 0100200300 Jan: 266.7 mm (10.5 in), 17 January 1906 Jan Feb: 68.6 mm (2.7 in), 7 February 1938 Feb Mar: 99.1 mm (3.9 in), 13 March 1954 Mar Apr: 253.5 mm (10.0 in), 14 April 1939 Apr May: 176.5 mm (6.9 in), 13 May 1943 May Jun: 81.3 mm (3.2 in), 30 June 1944 Jun Jul: 118.1 mm (4.6 in), 14 July 1928 Jul Aug: 98.0 mm (3.9 in), 25 August 1970 Aug Sep: 106.7 mm (4.2 in), 7 September 1923 Sep Oct: 228.3 mm (9.0 in), 23 October 1930 Oct Nov: 250.2 mm (9.9 in), 14 November 1906 Nov Dec: 291.3 mm (11.5 in), 10 December 1954 Dec
The wettest day on record for each calendar month at Nannilam. The most was 291.3 mm (11.5 in) on 10 December 1954.
Record daily precipitation for each month at Nannilam
MonthRecord daily precipitation (mm)Date
Jan266.7 mm (10.5 in)17 January 1906
Feb68.6 mm (2.7 in)7 February 1938
Mar99.1 mm (3.9 in)13 March 1954
Apr253.5 mm (10.0 in)14 April 1939
May176.5 mm (6.9 in)13 May 1943
Jun81.3 mm (3.2 in)30 June 1944
Jul118.1 mm (4.6 in)14 July 1928
Aug98.0 mm (3.9 in)25 August 1970
Sep106.7 mm (4.2 in)7 September 1923
Oct228.3 mm (9.0 in)23 October 1930
Nov250.2 mm (9.9 in)14 November 1906
Dec291.3 mm (11.5 in)10 December 1954

Latest Records

20
Latest records at Nannilam
DateStationRecordValueBeat old record byOld record stoodSignificance
23 November 1970Nannilam, INdaily rain78.0 mm (3.1 in)33.3 mm (1.3 in)37 years28 of 100 (Routine)
10 September 1970Nannilam, INdaily rain68.0 mm (2.7 in)15.9 mm (0.6 in)23 years22 of 100 (Routine)
25 August 1970Nannilam, INmonthly rain98.0 mm (3.9 in)7.8 mm (0.31 in)20 years27 of 100 (Routine)
3 June 1970Nannilam, INdaily rain38.0 mm (1.5 in)9.3 mm (0.37 in)51 years29 of 100 (Routine)
14 December 1969Nannilam, INdaily rain72.0 mm (2.8 in)36.7 mm (1.4 in)46 years30 of 100 (Routine)
19 November 1969Nannilam, INdaily rain132.0 mm (5.2 in)66.5 mm (2.6 in)48 years40 of 100 (Notable)
3 May 1968Nannilam, INdaily rain41.0 mm (1.6 in)38.0 mm (1.5 in)41 years33 of 100 (Routine)
2 May 1968Nannilam, INdaily rain12.0 mm (0.5 in)1.3 mm (0.05 in)52 years20 of 100 (Routine)
27 April 1968Nannilam, INdaily rain30.0 mm (1.2 in)1.0 mm (0.04 in)31 years15 of 100 (Routine)
25 April 1968Nannilam, INdaily rain85.4 mm (3.4 in)35.9 mm (1.4 in)59 years36 of 100 (Notable)
21 April 1968Nannilam, INdaily rain48.0 mm (1.9 in)4.0 mm (0.16 in)1 year7 of 100 (Routine)
27 March 1968Nannilam, INdaily rain15.0 mm (0.6 in)4.6 mm (0.18 in)21 years14 of 100 (Routine)
8 December 1967Nannilam, INdaily rain115.0 mm (4.5 in)29.1 mm (1.1 in)48 years29 of 100 (Routine)
7 December 1967Nannilam, INdaily rain126.0 mm (5.0 in)19.3 mm (0.8 in)14 years15 of 100 (Routine)
21 June 1967Nannilam, INdaily rain34.0 mm (1.3 in)27.1 mm (1.1 in)16 years31 of 100 (Routine)
21 April 1967Nannilam, INdaily rain44.0 mm (1.7 in)10.5 mm (0.4 in)34 years19 of 100 (Routine)
24 March 1967Nannilam, INdaily rain19.0 mm (0.7 in)9.3 mm (0.37 in)28 years18 of 100 (Routine)
20 March 1967Nannilam, INdaily rain39.0 mm (1.5 in)25.6 mm (1.0 in)2 years17 of 100 (Routine)
19 October 1966Nannilam, INdaily rain140.0 mm (5.5 in)75.0 mm (3.0 in)60 years58 of 100 (Notable)
18 October 1966Nannilam, INdaily rain56.0 mm (2.2 in)3.2 mm (0.13 in)43 years19 of 100 (Routine)

Extremes by Year

1901 to 1970
Yearly extremes at Nannilam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)291.3 mm (11.5 in)1954113.8 mm (4.5 in)69
Wettest five days (Rx5day)550.2 mm (21.7 in)1960239.8 mm (9.4 in)69
Longest dry spell (CDD)123 days197057 days69

Wettest day (Rx1day)

Wettest day (Rx1day) at Nannilam by year The wettest day of the year at Nannilam, 1901 to 1970. The record is 291.3 mm (11.5 in) in 1954, marked on the chart; the median year is 113.8 mm (4.5 in). 0100200300192019401960Record: 291.3 mm (11.5 in) in 1954
The wettest day of the year at Nannilam, 1901 to 1970. The record is 291.3 mm (11.5 in) in 1954, marked on the chart; the median year is 113.8 mm (4.5 in).
Wettest day (Rx1day) at Nannilam by year
YearWettest day (Rx1day)
190189.7 mm (3.5 in)
190299.6 mm (3.9 in)
1903101.1 mm (4.0 in)
190473.7 mm (2.9 in)
1905116.8 mm (4.6 in)
1906266.7 mm (10.5 in)
1907105.7 mm (4.2 in)
1908119.9 mm (4.7 in)
190983.8 mm (3.3 in)
191064.5 mm (2.5 in)
1911135.9 mm (5.4 in)
1912143.5 mm (5.6 in)
1913159.5 mm (6.3 in)
1914105.4 mm (4.1 in)
191557.9 mm (2.3 in)
191699.6 mm (3.9 in)
191784.8 mm (3.3 in)
1918199.4 mm (7.9 in)
1919163.8 mm (6.4 in)
1920213.4 mm (8.4 in)
192178.5 mm (3.1 in)
192276.7 mm (3.0 in)
1923205.7 mm (8.1 in)
192476.7 mm (3.0 in)
192579.8 mm (3.1 in)
1926158.8 mm (6.3 in)
192779.2 mm (3.1 in)
1928130.3 mm (5.1 in)
1929130.0 mm (5.1 in)
1930228.3 mm (9.0 in)
1931262.1 mm (10.3 in)
1932239.8 mm (9.4 in)
1933104.6 mm (4.1 in)
193471.1 mm (2.8 in)
1935133.1 mm (5.2 in)
1936153.7 mm (6.1 in)
1937137.2 mm (5.4 in)
1938128.0 mm (5.0 in)
1939253.5 mm (10.0 in)
1940104.9 mm (4.1 in)
1941113.8 mm (4.5 in)
194283.8 mm (3.3 in)
1943176.5 mm (6.9 in)
194489.9 mm (3.5 in)
194599.3 mm (3.9 in)
1946182.4 mm (7.2 in)
194764.5 mm (2.5 in)
194886.4 mm (3.4 in)
194972.6 mm (2.9 in)
195095.3 mm (3.8 in)
195173.7 mm (2.9 in)
1952106.7 mm (4.2 in)
195377.7 mm (3.1 in)
1954291.3 mm (11.5 in)
1955120.4 mm (4.7 in)
1956207.3 mm (8.2 in)
1957114.8 mm (4.5 in)
1958142.0 mm (5.6 in)
195998.0 mm (3.9 in)
1960190.0 mm (7.5 in)
196185.0 mm (3.3 in)
1963167.0 mm (6.6 in)
1964108.0 mm (4.3 in)
196573.0 mm (2.9 in)
1966140.0 mm (5.5 in)
1967134.0 mm (5.3 in)
196885.4 mm (3.4 in)
1969132.0 mm (5.2 in)
1970191.0 mm (7.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Nannilam by year The wettest five days of the year at Nannilam, 1901 to 1970. The record is 550.2 mm (21.7 in) in 1960, marked on the chart; the median year is 239.8 mm (9.4 in). 0200400600192019401960Record: 550.2 mm (21.7 in) in 1960
The wettest five days of the year at Nannilam, 1901 to 1970. The record is 550.2 mm (21.7 in) in 1960, marked on the chart; the median year is 239.8 mm (9.4 in).
Wettest five days (Rx5day) at Nannilam by year
YearWettest five days (Rx5day)
1901193.1 mm (7.6 in)
1902229.8 mm (9.0 in)
1903226.6 mm (8.9 in)
1904227.1 mm (8.9 in)
1905195.6 mm (7.7 in)
1906422.5 mm (16.6 in)
1907265.5 mm (10.5 in)
1908300.2 mm (11.8 in)
1909192.4 mm (7.6 in)
1910115.1 mm (4.5 in)
1911242.4 mm (9.5 in)
1912375.4 mm (14.8 in)
1913394.9 mm (15.5 in)
1914235.3 mm (9.3 in)
1915143.0 mm (5.6 in)
1916119.7 mm (4.7 in)
1917205.0 mm (8.1 in)
1918317.2 mm (12.5 in)
1919478.3 mm (18.8 in)
1920494.3 mm (19.5 in)
1921181.4 mm (7.1 in)
1922158.8 mm (6.3 in)
1923410.4 mm (16.2 in)
1924153.1 mm (6.0 in)
1925211.6 mm (8.3 in)
1926317.6 mm (12.5 in)
1927184.9 mm (7.3 in)
1928384.8 mm (15.1 in)
1929150.2 mm (5.9 in)
1930452.1 mm (17.8 in)
1931469.1 mm (18.5 in)
1932445.5 mm (17.5 in)
1933147.5 mm (5.8 in)
1934158.2 mm (6.2 in)
1935241.1 mm (9.5 in)
1936204.5 mm (8.1 in)
1937357.6 mm (14.1 in)
1938295.1 mm (11.6 in)
1939398.1 mm (15.7 in)
1940282.2 mm (11.1 in)
1941171.0 mm (6.7 in)
1942102.1 mm (4.0 in)
1943238.0 mm (9.4 in)
1944196.6 mm (7.7 in)
1945319.5 mm (12.6 in)
1946266.6 mm (10.5 in)
1947150.3 mm (5.9 in)
1948273.6 mm (10.8 in)
1949125.7 mm (4.9 in)
1950177.3 mm (7.0 in)
1951127.3 mm (5.0 in)
1952125.0 mm (4.9 in)
1953133.6 mm (5.3 in)
1954328.1 mm (12.9 in)
1955275.8 mm (10.9 in)
1956239.8 mm (9.4 in)
1957248.4 mm (9.8 in)
1958243.6 mm (9.6 in)
1959163.4 mm (6.4 in)
1960550.2 mm (21.7 in)
1961172.0 mm (6.8 in)
1963332.4 mm (13.1 in)
1964157.0 mm (6.2 in)
1965283.0 mm (11.1 in)
1966273.2 mm (10.8 in)
1967283.0 mm (11.1 in)
1968133.4 mm (5.3 in)
1969294.0 mm (11.6 in)
1970378.0 mm (14.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Nannilam by year The longest dry spell of the year at Nannilam, 1901 to 1970. The record is 123 days in 1970, marked on the chart; the median year is 57 days. 255075100125192019401960Record: 123 days in 1970
The longest dry spell of the year at Nannilam, 1901 to 1970. The record is 123 days in 1970, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Nannilam by year
YearLongest dry spell (CDD)
190143 days
190229 days
190387 days
1904118 days
1905102 days
190655 days
190764 days
190870 days
190956 days
191083 days
191189 days
191230 days
191389 days
191486 days
191553 days
191652 days
191727 days
191843 days
191957 days
192062 days
192174 days
192257 days
192352 days
192468 days
192530 days
192664 days
192745 days
192852 days
192972 days
193029 days
193129 days
193228 days
193334 days
193493 days
193590 days
193652 days
193758 days
193840 days
193956 days
194026 days
194151 days
194285 days
194336 days
194450 days
194553 days
194652 days
194730 days
194854 days
194988 days
195085 days
195176 days
195233 days
195388 days
195458 days
195563 days
195691 days
195798 days
195841 days
195963 days
196041 days
1961116 days
196347 days
196479 days
196543 days
196696 days
196761 days
196886 days
196993 days
1970123 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

69 years, 1901 to 1970

A day with at least 115.4 mm (4.5 in) of rain is expected about once in 2 years. A day with at least 347.6 mm (13.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Nannilam: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years115.4 mm (4.5 in)
5 years164.2 mm (6.5 in)
10 years201.2 mm (7.9 in)
25 years254.3 mm (10.0 in)
50 years298.7 mm (11.8 in)
100 years347.6 mm (13.7 in)Longer than the 69 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 69 years of values from 1901 to 1970.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 291.3 mm (11.5 in) in 1954; 266.7 mm (10.5 in) in 1906; 262.1 mm (10.3 in) in 1931.

Download the Data

  • Data for Nannilam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Nannilam 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).