Built 2026-10-18 (18 October 2026)

Bettiah Weather Records (IN004021200)

Record envelope, standing records and threshold days for Bettiah (IN004021200), India, with 70 years of record.

Key Facts for Bettiah

  • Bettiah (IN004021200) is a weather station in India at 26.80 latitude and 84.50 longitude, 68 m (223 ft) above sea level.
  • The station reports from 1901 to 1970, 70 years of record.
  • 0 records set at Bettiah still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Bettiah set a daily record precipitation of 181.6 mm (7.1 in) on 18 September 1970.

About the Station

  • Location: India, 26.80 latitude, 84.50 longitude.
  • Elevation: 68 m (223 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 Bettiah, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bettiah. 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 Bettiah. 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 Bettiah, 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 Bettiah by the year they were set 0 records at Bettiah still stand. 00000000000
0 records at Bettiah still stand.
Standing records at Bettiah by the year they were set
Year setStanding records

Wettest Day of Each Month

Jul: 268.0 mm (10.6 in)
Record daily precipitation for each month at Bettiah The wettest day on record for each calendar month at Bettiah. The most was 268.0 mm (10.6 in) on 1 July 1914. 0100200300 Jan: 45.7 mm (1.8 in), 10 January 1957 Jan Feb: 29.2 mm (1.1 in), 11 February 1940 Feb Mar: 99.8 mm (3.9 in), 29 March 1915 Mar Apr: 61.0 mm (2.4 in), 22 April 1945 Apr May: 85.3 mm (3.4 in), 4 May 1915 May Jun: 145.3 mm (5.7 in), 19 June 1934 Jun Jul: 268.0 mm (10.6 in), 1 July 1914 Jul Aug: 225.0 mm (8.9 in), 14 August 1915 Aug Sep: 213.4 mm (8.4 in), 6 September 1927 Sep Oct: 160.0 mm (6.3 in), 5 October 1928 Oct Nov: 63.5 mm (2.5 in), 2 November 1956 Nov Dec: 23.6 mm (0.9 in), 30 December 1930 Dec
The wettest day on record for each calendar month at Bettiah. The most was 268.0 mm (10.6 in) on 1 July 1914.
Record daily precipitation for each month at Bettiah
MonthRecord daily precipitation (mm)Date
Jan45.7 mm (1.8 in)10 January 1957
Feb29.2 mm (1.1 in)11 February 1940
Mar99.8 mm (3.9 in)29 March 1915
Apr61.0 mm (2.4 in)22 April 1945
May85.3 mm (3.4 in)4 May 1915
Jun145.3 mm (5.7 in)19 June 1934
Jul268.0 mm (10.6 in)1 July 1914
Aug225.0 mm (8.9 in)14 August 1915
Sep213.4 mm (8.4 in)6 September 1927
Oct160.0 mm (6.3 in)5 October 1928
Nov63.5 mm (2.5 in)2 November 1956
Dec23.6 mm (0.9 in)30 December 1930

Latest Records

20
Latest records at Bettiah
DateStationRecordValueBeat old record byOld record stoodSignificance
18 September 1970Bettiah, INdaily rain181.6 mm (7.1 in)29.2 mm (1.1 in)45 years29 of 100 (Routine)
12 August 1970Bettiah, INdaily rain162.6 mm (6.4 in)6.4 mm (0.25 in)31 years18 of 100 (Routine)
13 July 1970Bettiah, INdaily rain104.8 mm (4.1 in)23.5 mm (0.9 in)21 years20 of 100 (Routine)
21 May 1970Bettiah, INdaily rain29.0 mm (1.1 in)13.8 mm (0.5 in)60 years34 of 100 (Routine)
27 February 1970Bettiah, INdaily rain1.0 mm (0.04 in)1.0 mm (0.04 in)68 years20 of 100 (Routine)
19 February 1970Bettiah, INdaily rain12.4 mm (0.5 in)6.8 mm (0.27 in)26 years20 of 100 (Routine)
11 November 1969Bettiah, INdaily rain1.8 mm (0.07 in)1.8 mm (0.07 in)68 years20 of 100 (Routine)
24 September 1969Bettiah, INdaily rain179.4 mm (7.1 in)89.7 mm (3.5 in)16 years40 of 100 (Notable)
20 June 1969Bettiah, INdaily rain81.8 mm (3.2 in)11.9 mm (0.5 in)14 years15 of 100 (Routine)
6 October 1968Bettiah, INdaily rain66.6 mm (2.6 in)19.9 mm (0.8 in)40 years24 of 100 (Routine)
18 June 1968Bettiah, INdaily rain118.0 mm (4.6 in)40.8 mm (1.6 in)49 years37 of 100 (Notable)
3 June 1968Bettiah, INdaily rain35.0 mm (1.4 in)0.7 mm (0.03 in)16 years10 of 100 (Routine)
8 January 1968Bettiah, INdaily rain13.6 mm (0.5 in)13.6 mm (0.5 in)66 years20 of 100 (Routine)
3 December 1966Bettiah, INdaily rain2.0 mm (0.08 in)2.0 mm (0.08 in)64 years20 of 100 (Routine)
2 December 1966Bettiah, INdaily rain2.5 mm (0.10 in)2.5 mm (0.10 in)64 years20 of 100 (Routine)
2 September 1966Bettiah, INdaily rain86.5 mm (3.4 in)26.3 mm (1.0 in)32 years23 of 100 (Routine)
23 August 1966Bettiah, INdaily rain111.0 mm (4.4 in)44.7 mm (1.8 in)44 years36 of 100 (Notable)
22 August 1966Bettiah, INdaily rain104.0 mm (4.1 in)52.2 mm (2.1 in)31 years34 of 100 (Routine)
30 May 1966Bettiah, INdaily rain45.0 mm (1.8 in)18.3 mm (0.7 in)36 years29 of 100 (Routine)
10 September 1965Bettiah, INdaily rain31.5 mm (1.2 in)3.6 mm (0.14 in)22 years13 of 100 (Routine)

Extremes by Year

1901 to 1970
Yearly extremes at Bettiah: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)268.0 mm (10.6 in)1914119.7 mm (4.7 in)68
Wettest five days (Rx5day)630.1 mm (24.8 in)1940249.4 mm (9.8 in)68
Longest dry spell (CDD)126 days191075 days68

Wettest day (Rx1day)

Wettest day (Rx1day) at Bettiah by year The wettest day of the year at Bettiah, 1901 to 1970. The record is 268.0 mm (10.6 in) in 1914, marked on the chart; the median year is 119.7 mm (4.7 in). 50100150200250300192019401960Record: 268.0 mm (10.6 in) in 1914
The wettest day of the year at Bettiah, 1901 to 1970. The record is 268.0 mm (10.6 in) in 1914, marked on the chart; the median year is 119.7 mm (4.7 in).
Wettest day (Rx1day) at Bettiah by year
YearWettest day (Rx1day)
1901101.6 mm (4.0 in)
1902130.6 mm (5.1 in)
1903127.0 mm (5.0 in)
1904104.1 mm (4.1 in)
190599.1 mm (3.9 in)
190689.4 mm (3.5 in)
190798.0 mm (3.9 in)
1908101.9 mm (4.0 in)
1909124.2 mm (4.9 in)
1910101.1 mm (4.0 in)
1911114.3 mm (4.5 in)
1912107.4 mm (4.2 in)
1913119.9 mm (4.7 in)
1914268.0 mm (10.6 in)
1915225.0 mm (8.9 in)
1916113.8 mm (4.5 in)
1917113.3 mm (4.5 in)
1918151.1 mm (5.9 in)
191977.2 mm (3.0 in)
192088.9 mm (3.5 in)
192193.2 mm (3.7 in)
1922102.9 mm (4.1 in)
1923127.0 mm (5.0 in)
1924152.4 mm (6.0 in)
192580.0 mm (3.1 in)
1926102.1 mm (4.0 in)
1927213.4 mm (8.4 in)
1928160.0 mm (6.3 in)
192993.0 mm (3.7 in)
1930142.7 mm (5.6 in)
1931116.8 mm (4.6 in)
193268.3 mm (2.7 in)
1933119.4 mm (4.7 in)
1934165.1 mm (6.5 in)
1935109.7 mm (4.3 in)
1936114.8 mm (4.5 in)
1937115.1 mm (4.5 in)
1938138.4 mm (5.4 in)
1939156.2 mm (6.1 in)
1940234.4 mm (9.2 in)
1941224.8 mm (8.9 in)
194271.9 mm (2.8 in)
1943106.7 mm (4.2 in)
1944134.6 mm (5.3 in)
194571.9 mm (2.8 in)
1946156.2 mm (6.1 in)
194795.3 mm (3.8 in)
1948160.0 mm (6.3 in)
194976.2 mm (3.0 in)
1950120.7 mm (4.8 in)
1951144.8 mm (5.7 in)
1952142.2 mm (5.6 in)
1953139.7 mm (5.5 in)
1954114.3 mm (4.5 in)
1955158.8 mm (6.3 in)
1956139.7 mm (5.5 in)
1957120.7 mm (4.8 in)
1958129.5 mm (5.1 in)
1959131.6 mm (5.2 in)
1960120.0 mm (4.7 in)
196187.2 mm (3.4 in)
1964124.4 mm (4.9 in)
1965198.5 mm (7.8 in)
1966111.0 mm (4.4 in)
196781.0 mm (3.2 in)
1968118.0 mm (4.6 in)
1969179.4 mm (7.1 in)
1970181.6 mm (7.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Bettiah by year The wettest five days of the year at Bettiah, 1901 to 1970. The record is 630.1 mm (24.8 in) in 1940, marked on the chart; the median year is 249.4 mm (9.8 in). 0200400600800192019401960Record: 630.1 mm (24.8 in) in 1940
The wettest five days of the year at Bettiah, 1901 to 1970. The record is 630.1 mm (24.8 in) in 1940, marked on the chart; the median year is 249.4 mm (9.8 in).
Wettest five days (Rx5day) at Bettiah by year
YearWettest five days (Rx5day)
1901190.6 mm (7.5 in)
1902221.3 mm (8.7 in)
1903335.0 mm (13.2 in)
1904192.1 mm (7.6 in)
1905290.4 mm (11.4 in)
1906253.9 mm (10.0 in)
1907226.0 mm (8.9 in)
1908256.1 mm (10.1 in)
1909165.6 mm (6.5 in)
1910177.1 mm (7.0 in)
1911258.8 mm (10.2 in)
1912226.6 mm (8.9 in)
1913285.0 mm (11.2 in)
1914421.2 mm (16.6 in)
1915475.2 mm (18.7 in)
1916182.6 mm (7.2 in)
1917174.8 mm (6.9 in)
1918328.7 mm (12.9 in)
191996.3 mm (3.8 in)
1920131.8 mm (5.2 in)
1921177.0 mm (7.0 in)
1922195.4 mm (7.7 in)
1923204.9 mm (8.1 in)
1924302.9 mm (11.9 in)
1925198.1 mm (7.8 in)
1926291.1 mm (11.5 in)
1927243.9 mm (9.6 in)
1928223.5 mm (8.8 in)
1929151.2 mm (6.0 in)
1930273.3 mm (10.8 in)
1931157.7 mm (6.2 in)
1932132.9 mm (5.2 in)
1933255.4 mm (10.1 in)
1934306.6 mm (12.1 in)
1935284.5 mm (11.2 in)
1936303.8 mm (12.0 in)
1937301.5 mm (11.9 in)
1938260.3 mm (10.2 in)
1939248.6 mm (9.8 in)
1940630.1 mm (24.8 in)
1941319.5 mm (12.6 in)
1942175.2 mm (6.9 in)
1943130.5 mm (5.1 in)
1944283.7 mm (11.2 in)
1945128.3 mm (5.1 in)
1946253.2 mm (10.0 in)
1947196.6 mm (7.7 in)
1948263.1 mm (10.4 in)
1949112.5 mm (4.4 in)
1950157.1 mm (6.2 in)
1951327.9 mm (12.9 in)
1952313.8 mm (12.4 in)
1953250.2 mm (9.9 in)
1954195.5 mm (7.7 in)
1955490.0 mm (19.3 in)
1956318.1 mm (12.5 in)
1957279.5 mm (11.0 in)
1958210.5 mm (8.3 in)
1959286.0 mm (11.3 in)
1960176.0 mm (6.9 in)
1961219.8 mm (8.7 in)
1964267.8 mm (10.5 in)
1965288.2 mm (11.3 in)
1966251.4 mm (9.9 in)
1967134.5 mm (5.3 in)
1968173.6 mm (6.8 in)
1969231.8 mm (9.1 in)
1970288.1 mm (11.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Bettiah by year The longest dry spell of the year at Bettiah, 1901 to 1970. The record is 126 days in 1910, marked on the chart; the median year is 75 days. 255075100125150192019401960Record: 126 days in 1910
The longest dry spell of the year at Bettiah, 1901 to 1970. The record is 126 days in 1910, marked on the chart; the median year is 75 days.
Longest dry spell (CDD) at Bettiah by year
YearLongest dry spell (CDD)
190196 days
190273 days
190374 days
190480 days
190588 days
190686 days
190799 days
190891 days
190949 days
1910126 days
191141 days
191273 days
191363 days
191497 days
191542 days
191683 days
191783 days
191892 days
191981 days
192096 days
192174 days
192288 days
192371 days
192454 days
192551 days
192685 days
192732 days
192855 days
192961 days
193059 days
193155 days
193257 days
193370 days
193474 days
193598 days
193692 days
193776 days
193886 days
193996 days
194033 days
194171 days
194274 days
194371 days
194498 days
194574 days
194663 days
194785 days
1948122 days
194973 days
1950107 days
195166 days
195258 days
195393 days
195491 days
195579 days
195657 days
195752 days
195888 days
195962 days
196075 days
196151 days
196471 days
196567 days
196694 days
196787 days
196886 days
1969106 days
197096 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

64 years, 1901 to 1970

A day with at least 119.4 mm (4.7 in) of rain is expected about once in 2 years. A day with at least 253.6 mm (10.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Bettiah: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years119.4 mm (4.7 in)
5 years153.2 mm (6.0 in)
10 years176.5 mm (6.9 in)
25 years206.8 mm (8.1 in)
50 years229.9 mm (9.1 in)
100 years253.6 mm (10.0 in)Longer than the 64 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, 64 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: 234.4 mm (9.2 in) in 1940; 225.0 mm (8.9 in) in 1915; 224.8 mm (8.9 in) in 1941.

Download the Data

  • Data for Bettiah standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bettiah 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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