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Built 2026-10-16 (16 October 2026)

Bonai Weather Records (IN017130500)

Record envelope, standing records and threshold days for Bonai (IN017130500), India, with 57 years of record.

Key Facts for Bonai

  • Bonai (IN017130500) is a weather station in India at 21.83 latitude and 84.97 longitude, 122 m (400 ft) above sea level.
  • The station reports from 1911 to 1967, 57 years of record.
  • 0 records set at Bonai still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Bonai set a daily record precipitation of 38.0 mm (1.5 in) on 28 August 1967.

About the Station

  • Location: India, 21.83 latitude, 84.97 longitude.
  • Elevation: 122 m (400 ft).
  • Period of record: 1911 to 1967, 57 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Bonai, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bonai. 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 Bonai. 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 Bonai, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

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

Wettest Day of Each Month

Jul: 333.5 mm (13.1 in)
Record daily precipitation for each month at Bonai The wettest day on record for each calendar month at Bonai. The most was 333.5 mm (13.1 in) on 20 July 1920. 0100200300400 Jan: 56.4 mm (2.2 in), 22 January 1921 Jan Feb: 44.2 mm (1.7 in), 24 February 1923 Feb Mar: 41.0 mm (1.6 in), 22 March 1967 Mar Apr: 35.6 mm (1.4 in), 7 April 1939 Apr May: 153.4 mm (6.0 in), 23 May 1920 May Jun: 201.2 mm (7.9 in), 11 June 1919 Jun Jul: 333.5 mm (13.1 in), 20 July 1920 Jul Aug: 181.6 mm (7.1 in), 1 August 1913 Aug Sep: 157.0 mm (6.2 in), 13 September 1937 Sep Oct: 190.5 mm (7.5 in), 5 October 1936 Oct Nov: 67.3 mm (2.6 in), 1 November 1912 Nov Dec: 29.2 mm (1.1 in), 22 December 1940 Dec
The wettest day on record for each calendar month at Bonai. The most was 333.5 mm (13.1 in) on 20 July 1920.
Record daily precipitation for each month at Bonai
MonthRecord daily precipitation (mm)Date
Jan56.4 mm (2.2 in)22 January 1921
Feb44.2 mm (1.7 in)24 February 1923
Mar41.0 mm (1.6 in)22 March 1967
Apr35.6 mm (1.4 in)7 April 1939
May153.4 mm (6.0 in)23 May 1920
Jun201.2 mm (7.9 in)11 June 1919
Jul333.5 mm (13.1 in)20 July 1920
Aug181.6 mm (7.1 in)1 August 1913
Sep157.0 mm (6.2 in)13 September 1937
Oct190.5 mm (7.5 in)5 October 1936
Nov67.3 mm (2.6 in)1 November 1912
Dec29.2 mm (1.1 in)22 December 1940

Latest Records

20
Latest records at Bonai
DateStationRecordValueBeat old record byOld record stoodSignificance
28 August 1967Bonai, INdaily rain38.0 mm (1.5 in)2.4 mm (0.09 in)36 years16 of 100 (Routine)
12 June 1967Bonai, INdaily rain66.3 mm (2.6 in)2.8 mm (0.11 in)53 years22 of 100 (Routine)
23 April 1967Bonai, INdaily rain19.0 mm (0.7 in)13.9 mm (0.5 in)37 years20 of 100 (Routine)
22 March 1967Bonai, INmonthly rain41.0 mm (1.6 in)2.9 mm (0.11 in)54 years34 of 100 (Routine)
16 March 1967Bonai, INdaily rain21.3 mm (0.8 in)18.0 mm (0.7 in)28 years20 of 100 (Routine)
17 January 1967Bonai, INdaily rain27.0 mm (1.1 in)24.0 mm (0.9 in)28 years33 of 100 (Routine)
16 January 1967Bonai, INdaily rain48.0 mm (1.9 in)31.0 mm (1.2 in)28 years39 of 100 (Notable)
15 January 1967Bonai, INdaily rain19.8 mm (0.8 in)15.5 mm (0.6 in)28 years20 of 100 (Routine)
13 January 1967Bonai, INdaily rain3.0 mm (0.12 in)3.0 mm (0.12 in)56 years20 of 100 (Routine)
12 January 1967Bonai, INdaily rain11.0 mm (0.4 in)8.2 mm (0.32 in)48 years20 of 100 (Routine)
7 January 1967Bonai, INdaily rain14.0 mm (0.6 in)9.9 mm (0.39 in)28 years20 of 100 (Routine)
6 January 1967Bonai, INdaily rain22.0 mm (0.9 in)4.0 mm (0.16 in)43 years20 of 100 (Routine)
25 February 1958Bonai, INdaily rain23.6 mm (0.9 in)19.8 mm (0.8 in)39 years20 of 100 (Routine)
27 January 1958Bonai, INdaily rain1.1 mm (0.04 in)1.1 mm (0.04 in)47 years18 of 100 (Routine)
26 October 1957Bonai, INdaily rain4.8 mm (0.19 in)0.5 mm (0.02 in)18 years9 of 100 (Routine)
3 April 1957Bonai, INdaily rain8.1 mm (0.32 in)0.7 mm (0.03 in)4 years6 of 100 (Routine)
26 February 1957Bonai, INdaily rain19.8 mm (0.8 in)19.8 mm (0.8 in)46 years20 of 100 (Routine)
7 November 1955Bonai, INdaily rain14.0 mm (0.6 in)4.6 mm (0.18 in)30 years16 of 100 (Routine)
30 September 1955Bonai, INdaily rain19.1 mm (0.8 in)0.6 mm (0.02 in)0 years4 of 100 (Routine)
12 September 1955Bonai, INdaily rain33.5 mm (1.3 in)3.3 mm (0.13 in)17 years11 of 100 (Routine)

Extremes by Year

1911 to 1967
Yearly extremes at Bonai: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)333.5 mm (13.1 in)1920115.6 mm (4.6 in)36
Wettest five days (Rx5day)669.6 mm (26.4 in)1920219.8 mm (8.7 in)36
Longest dry spell (CDD)123 days195566 days36

Wettest day (Rx1day)

Wettest day (Rx1day) at Bonai by year The wettest day of the year at Bonai, 1911 to 1967. The record is 333.5 mm (13.1 in) in 1920, marked on the chart; the median year is 115.6 mm (4.6 in). 010020030040019201930194019501960Record: 333.5 mm (13.1 in) in 1920
The wettest day of the year at Bonai, 1911 to 1967. The record is 333.5 mm (13.1 in) in 1920, marked on the chart; the median year is 115.6 mm (4.6 in).
Wettest day (Rx1day) at Bonai by year
YearWettest day (Rx1day)
1911111.8 mm (4.4 in)
191286.4 mm (3.4 in)
1913181.6 mm (7.1 in)
191499.8 mm (3.9 in)
1915119.4 mm (4.7 in)
191672.4 mm (2.9 in)
1917140.2 mm (5.5 in)
191888.9 mm (3.5 in)
1919201.2 mm (7.9 in)
1920333.5 mm (13.1 in)
192173.9 mm (2.9 in)
1922137.9 mm (5.4 in)
1923127.0 mm (5.0 in)
192499.1 mm (3.9 in)
1925180.3 mm (7.1 in)
1926130.0 mm (5.1 in)
1927275.8 mm (10.9 in)
1928130.8 mm (5.1 in)
1929124.5 mm (4.9 in)
193073.2 mm (2.9 in)
193193.5 mm (3.7 in)
193271.1 mm (2.8 in)
193367.1 mm (2.6 in)
1934133.9 mm (5.3 in)
1935142.2 mm (5.6 in)
1936190.5 mm (7.5 in)
1937157.0 mm (6.2 in)
193884.3 mm (3.3 in)
1939139.7 mm (5.5 in)
1940105.4 mm (4.1 in)
1952141.2 mm (5.6 in)
195488.9 mm (3.5 in)
195586.4 mm (3.4 in)
195772.4 mm (2.9 in)
195823.6 mm (0.9 in)
196792.0 mm (3.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bonai by year The wettest five days of the year at Bonai, 1911 to 1967. The record is 669.6 mm (26.4 in) in 1920, marked on the chart; the median year is 219.8 mm (8.7 in). 020040060080019201930194019501960Record: 669.6 mm (26.4 in) in 1920
The wettest five days of the year at Bonai, 1911 to 1967. The record is 669.6 mm (26.4 in) in 1920, marked on the chart; the median year is 219.8 mm (8.7 in).
Wettest five days (Rx5day) at Bonai by year
YearWettest five days (Rx5day)
1911214.6 mm (8.4 in)
1912182.9 mm (7.2 in)
1913306.1 mm (12.1 in)
1914194.3 mm (7.6 in)
1915242.6 mm (9.6 in)
1916227.5 mm (9.0 in)
1917250.2 mm (9.9 in)
1918189.2 mm (7.4 in)
1919378.6 mm (14.9 in)
1920669.6 mm (26.4 in)
1921247.7 mm (9.8 in)
1922209.2 mm (8.2 in)
1923334.6 mm (13.2 in)
1924186.3 mm (7.3 in)
1925394.6 mm (15.5 in)
1926210.0 mm (8.3 in)
1927445.5 mm (17.5 in)
1928281.4 mm (11.1 in)
1929294.4 mm (11.6 in)
1930162.3 mm (6.4 in)
1931194.4 mm (7.7 in)
1932145.1 mm (5.7 in)
1933139.3 mm (5.5 in)
1934235.5 mm (9.3 in)
1935234.7 mm (9.2 in)
1936235.8 mm (9.3 in)
1937222.5 mm (8.8 in)
1938186.9 mm (7.4 in)
1939257.0 mm (10.1 in)
1940251.2 mm (9.9 in)
1952204.1 mm (8.0 in)
1954143.5 mm (5.6 in)
1955217.0 mm (8.5 in)
1957185.5 mm (7.3 in)
195823.6 mm (0.9 in)
1967129.0 mm (5.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bonai by year The longest dry spell of the year at Bonai, 1911 to 1967. The record is 123 days in 1955, marked on the chart; the median year is 66 days. 25507510012519201930194019501960Record: 123 days in 1955
The longest dry spell of the year at Bonai, 1911 to 1967. The record is 123 days in 1955, marked on the chart; the median year is 66 days.
Longest dry spell (CDD) at Bonai by year
YearLongest dry spell (CDD)
191172 days
191250 days
191366 days
1914101 days
191537 days
191657 days
191747 days
1918106 days
191946 days
1920106 days
1921112 days
192295 days
192358 days
192434 days
192578 days
192665 days
192779 days
192832 days
192944 days
193042 days
193134 days
193246 days
193343 days
1934100 days
193598 days
193673 days
193766 days
193885 days
193936 days
194069 days
195276 days
195464 days
1955123 days
195766 days
195887 days
196794 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, 1912 to 1967

A day with at least 115.8 mm (4.6 in) of rain is expected about once in 2 years. A day with at least 365.0 mm (14.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Bonai: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years115.8 mm (4.6 in)
5 years163.0 mm (6.4 in)
10 years200.9 mm (7.9 in)
25 years257.8 mm (10.1 in)
50 years307.8 mm (12.1 in)Longer than the 32 years of record
100 years365.0 mm (14.4 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 1912 to 1967.

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: 333.5 mm (13.1 in) in 1920; 275.8 mm (10.9 in) in 1927; 201.2 mm (7.9 in) in 1919.

Download the Data

  • Data for Bonai standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bonai 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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