Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Coonoor Weather Records (IN020091800)

Record envelope, standing records and threshold days for Coonoor (IN020091800), India, with 43 years of record.

Key Facts for Coonoor

  • Coonoor (IN020091800) is a weather station in India at 11.35 latitude and 76.80 longitude, 1,747 m (5,732 ft) above sea level.
  • The station reports from 1928 to 1970, 43 years of record.
  • 0 records set at Coonoor still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Coonoor set a daily record precipitation of 39.8 mm (1.6 in) on 15 April 1970.

About the Station

  • Location: India, 11.35 latitude, 76.80 longitude.
  • Elevation: 1,747 m (5,732 ft).
  • Period of record: 1928 to 1970, 43 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Coonoor, with 2026 drawn through them The band shows the record high and record low for each calendar day at Coonoor. 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 Coonoor. 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 Coonoor, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
Febn/an/an/an/a
Marn/an/an/an/a
Aprn/an/an/an/a
Mayn/an/an/an/a
Junn/an/an/an/a
Juln/an/an/an/a
Augn/an/an/an/a
Sepn/an/an/an/a
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 Coonoor by the year they were set 0 records at Coonoor still stand. 00000000000
0 records at Coonoor still stand.
Standing records at Coonoor by the year they were set
Year setStanding records

Wettest Day of Each Month

Dec: 228.6 mm (9.0 in)
Record daily precipitation for each month at Coonoor The wettest day on record for each calendar month at Coonoor. The most was 228.6 mm (9.0 in) on 2 December 1952. 0100200300 Jan: 196.6 mm (7.7 in), 4 January 1943 Jan Feb: 207.5 mm (8.2 in), 3 February 1936 Feb Mar: 157.5 mm (6.2 in), 26 March 1951 Mar Apr: 179.4 mm (7.1 in), 3 April 1960 Apr May: 193.0 mm (7.6 in), 22 May 1957 May Jun: 97.3 mm (3.8 in), 28 June 1939 Jun Jul: 46.0 mm (1.8 in), 19 July 1960 Jul Aug: 70.6 mm (2.8 in), 19 August 1933 Aug Sep: 73.2 mm (2.9 in), 13 September 1955 Sep Oct: 181.4 mm (7.1 in), 26 October 1930 Oct Nov: 199.6 mm (7.9 in), 11 November 1966 Nov Dec: 228.6 mm (9.0 in), 2 December 1952 Dec
The wettest day on record for each calendar month at Coonoor. The most was 228.6 mm (9.0 in) on 2 December 1952.
Record daily precipitation for each month at Coonoor
MonthRecord daily precipitation (mm)Date
Jan196.6 mm (7.7 in)4 January 1943
Feb207.5 mm (8.2 in)3 February 1936
Mar157.5 mm (6.2 in)26 March 1951
Apr179.4 mm (7.1 in)3 April 1960
May193.0 mm (7.6 in)22 May 1957
Jun97.3 mm (3.8 in)28 June 1939
Jul46.0 mm (1.8 in)19 July 1960
Aug70.6 mm (2.8 in)19 August 1933
Sep73.2 mm (2.9 in)13 September 1955
Oct181.4 mm (7.1 in)26 October 1930
Nov199.6 mm (7.9 in)11 November 1966
Dec228.6 mm (9.0 in)2 December 1952

Latest Records

20
Latest records at Coonoor
DateStationRecordValueBeat old record byOld record stoodSignificance
15 April 1970Coonoor, INdaily rain39.8 mm (1.6 in)1.7 mm (0.07 in)23 years10 of 100 (Routine)
6 April 1970Coonoor, INdaily rain82.2 mm (3.2 in)19.4 mm (0.8 in)0 years12 of 100 (Routine)
11 March 1970Coonoor, INdaily rain146.6 mm (5.8 in)128.8 mm (5.1 in)9 years46 of 100 (Notable)
20 January 1970Coonoor, INdaily rain26.4 mm (1.0 in)24.9 mm (1.0 in)22 years19 of 100 (Routine)
16 December 1969Coonoor, INdaily rain47.8 mm (1.9 in)8.0 mm (0.31 in)2 years7 of 100 (Routine)
29 November 1969Coonoor, INdaily rain118.6 mm (4.7 in)67.0 mm (2.6 in)35 years40 of 100 (Notable)
11 April 1969Coonoor, INdaily rain39.6 mm (1.6 in)1.0 mm (0.04 in)18 years9 of 100 (Routine)
6 April 1969Coonoor, INdaily rain62.8 mm (2.5 in)27.5 mm (1.1 in)12 years19 of 100 (Routine)
20 December 1968Coonoor, INdaily rain41.2 mm (1.6 in)3.9 mm (0.15 in)26 years12 of 100 (Routine)
19 December 1968Coonoor, INdaily rain53.8 mm (2.1 in)22.6 mm (0.9 in)32 years21 of 100 (Routine)
31 August 1968Coonoor, INdaily rain21.2 mm (0.8 in)5.5 mm (0.22 in)25 years17 of 100 (Routine)
22 June 1968Coonoor, INdaily rain13.0 mm (0.5 in)2.8 mm (0.11 in)15 years11 of 100 (Routine)
31 May 1968Coonoor, INdaily rain26.0 mm (1.0 in)23.0 mm (0.9 in)17 years22 of 100 (Routine)
20 April 1968Coonoor, INdaily rain65.8 mm (2.6 in)47.5 mm (1.9 in)13 years28 of 100 (Routine)
14 March 1968Coonoor, INdaily rain40.0 mm (1.6 in)29.3 mm (1.2 in)14 years17 of 100 (Routine)
13 March 1968Coonoor, INdaily rain36.2 mm (1.4 in)23.2 mm (0.9 in)35 years21 of 100 (Routine)
25 February 1968Coonoor, INdaily rain62.2 mm (2.4 in)26.6 mm (1.0 in)16 years17 of 100 (Routine)
23 February 1968Coonoor, INdaily rain50.0 mm (2.0 in)37.3 mm (1.5 in)14 years21 of 100 (Routine)
21 February 1968Coonoor, INdaily rain112.2 mm (4.4 in)51.2 mm (2.0 in)16 years26 of 100 (Routine)
24 January 1968Coonoor, INdaily rain14.4 mm (0.6 in)9.6 mm (0.38 in)14 years11 of 100 (Routine)

Extremes by Year

1928 to 1970
Yearly extremes at Coonoor: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)228.6 mm (9.0 in)1952116.6 mm (4.6 in)39
Wettest five days (Rx5day)406.4 mm (16.0 in)1948209.8 mm (8.3 in)39
Longest dry spell (CDD)92 days194930 days39

Wettest day (Rx1day)

Wettest day (Rx1day) at Coonoor by year The wettest day of the year at Coonoor, 1928 to 1970. The record is 228.6 mm (9.0 in) in 1952, marked on the chart; the median year is 116.6 mm (4.6 in). 5010015020025019301940195019601970Record: 228.6 mm (9.0 in) in 1952
The wettest day of the year at Coonoor, 1928 to 1970. The record is 228.6 mm (9.0 in) in 1952, marked on the chart; the median year is 116.6 mm (4.6 in).
Wettest day (Rx1day) at Coonoor by year
YearWettest day (Rx1day)
192882.3 mm (3.2 in)
192979.8 mm (3.1 in)
1930181.4 mm (7.1 in)
1931154.9 mm (6.1 in)
1932104.6 mm (4.1 in)
193370.6 mm (2.8 in)
1934140.5 mm (5.5 in)
193583.8 mm (3.3 in)
1936207.5 mm (8.2 in)
1937127.8 mm (5.0 in)
1938140.0 mm (5.5 in)
193997.3 mm (3.8 in)
1940106.2 mm (4.2 in)
194180.3 mm (3.2 in)
194299.1 mm (3.9 in)
1943196.6 mm (7.7 in)
194481.3 mm (3.2 in)
1945104.4 mm (4.1 in)
194690.2 mm (3.6 in)
1947129.3 mm (5.1 in)
1948163.1 mm (6.4 in)
1949119.9 mm (4.7 in)
195078.7 mm (3.1 in)
1951157.5 mm (6.2 in)
1952228.6 mm (9.0 in)
1953117.3 mm (4.6 in)
1954110.5 mm (4.4 in)
195588.9 mm (3.5 in)
195691.4 mm (3.6 in)
1957193.0 mm (7.6 in)
1958117.0 mm (4.6 in)
1959109.0 mm (4.3 in)
1960179.4 mm (7.1 in)
1961116.6 mm (4.6 in)
1966199.6 mm (7.9 in)
1967101.2 mm (4.0 in)
1968112.2 mm (4.4 in)
1969118.6 mm (4.7 in)
1970146.6 mm (5.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Coonoor by year The wettest five days of the year at Coonoor, 1928 to 1970. The record is 406.4 mm (16.0 in) in 1948, marked on the chart; the median year is 209.8 mm (8.3 in). 10020030040050019301940195019601970Record: 406.4 mm (16.0 in) in 1948
The wettest five days of the year at Coonoor, 1928 to 1970. The record is 406.4 mm (16.0 in) in 1948, marked on the chart; the median year is 209.8 mm (8.3 in).
Wettest five days (Rx5day) at Coonoor by year
YearWettest five days (Rx5day)
1928172.0 mm (6.8 in)
1929244.8 mm (9.6 in)
1930332.4 mm (13.1 in)
1931373.6 mm (14.7 in)
1932147.9 mm (5.8 in)
1933139.7 mm (5.5 in)
1934194.6 mm (7.7 in)
1935188.4 mm (7.4 in)
1936265.8 mm (10.5 in)
1937150.9 mm (5.9 in)
1938216.0 mm (8.5 in)
1939158.5 mm (6.2 in)
1940189.3 mm (7.5 in)
1941106.4 mm (4.2 in)
1942187.7 mm (7.4 in)
1943277.7 mm (10.9 in)
1944209.8 mm (8.3 in)
1945365.4 mm (14.4 in)
1946169.9 mm (6.7 in)
1947217.2 mm (8.6 in)
1948406.4 mm (16.0 in)
1949290.0 mm (11.4 in)
1950166.2 mm (6.5 in)
1951224.8 mm (8.9 in)
1952363.5 mm (14.3 in)
1953195.4 mm (7.7 in)
1954176.1 mm (6.9 in)
1955156.1 mm (6.1 in)
1956173.5 mm (6.8 in)
1957327.4 mm (12.9 in)
1958210.2 mm (8.3 in)
1959267.5 mm (10.5 in)
1960261.2 mm (10.3 in)
1961289.8 mm (11.4 in)
1966363.6 mm (14.3 in)
1967163.6 mm (6.4 in)
1968268.2 mm (10.6 in)
1969189.3 mm (7.5 in)
1970146.6 mm (5.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Coonoor by year The longest dry spell of the year at Coonoor, 1928 to 1970. The record is 92 days in 1949, marked on the chart; the median year is 30 days. 02040608010019301940195019601970Record: 92 days in 1949
The longest dry spell of the year at Coonoor, 1928 to 1970. The record is 92 days in 1949, marked on the chart; the median year is 30 days.
Longest dry spell (CDD) at Coonoor by year
YearLongest dry spell (CDD)
192830 days
192921 days
193028 days
193128 days
193213 days
193325 days
193431 days
193536 days
193628 days
193718 days
193832 days
193933 days
194030 days
194149 days
194258 days
194324 days
194415 days
194526 days
194627 days
194720 days
194834 days
194992 days
195049 days
195168 days
195227 days
195326 days
195423 days
195542 days
195640 days
195732 days
195833 days
195945 days
196033 days
196139 days
196616 days
196767 days
196826 days
196941 days
197029 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

32 years, 1929 to 1968

A day with at least 114.3 mm (4.5 in) of rain is expected about once in 2 years. A day with at least 288.4 mm (11.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Coonoor: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years114.3 mm (4.5 in)
5 years152.7 mm (6.0 in)
10 years181.1 mm (7.1 in)
25 years220.8 mm (8.7 in)
50 years253.3 mm (10.0 in)Longer than the 32 years of record
100 years288.4 mm (11.4 in)Longer than the 32 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, 32 years of values from 1929 to 1968.

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: 228.6 mm (9.0 in) in 1952; 207.5 mm (8.2 in) in 1936; 196.6 mm (7.7 in) in 1943.

Download the Data

  • Data for Coonoor standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Coonoor 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). Records are computed by this site and are not official.

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