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

Rosera Threshold Days by Year (IN004030100)

5 fixed thresholds counted per year at Rosera (IN004030100): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rosera Thresholds

  • Rosera: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1916 with 44.
  • Rosera: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1915 with 25.
  • Rosera: days with 50 mm (1.97 in) or more of precipitation in 52 years, most in 1916 with 14.
  • Rosera: days with 100 mm (3.94 in) or more of precipitation in 36 years, most in 1909 with 6.
  • 5 fixed thresholds have at least one qualifying day at Rosera.
55 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rosera Days per year at Rosera with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1916. 02040601901: 251902: 351903: 191904: 401905: 341906: 391907: 341908: 171909: 421910: 291911: 431912: 411913: 401914: 281915: 391916: 441917: 311918: 311919: 341920: 381921: 321922: 371923: 121924: 431925: 291926: 291927: 381928: 431929: 371930: 241931: 301932: 251933: 341934: 351935: 281936: 401937: 341938: 381939: 381940: 221941: 241942: 341943: 281944: 411945: 281951: 211952: 351954: 401955: 401958: 401959: 351967: 271968: 301969: 381970: 201901190719131919192519311937194319551970
Days per year at Rosera with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1916.
Days with 10 mm (0.39 in) or more of precipitation per year at Rosera
YearDaysDecade average
19012531.7
19023531.7
19031931.7
19044031.7
19053431.7
19063931.7
19073431.7
19081731.7
19094231.7
19102936
19114336
19124136
19134036
19142836
19153936
19164436
19173136
19183136
19193436
19203833.8
19213233.8
19223733.8
19231233.8
19244333.8
19252933.8
19262933.8
19273833.8
19284333.8
19293733.8
19302432.6
19313032.6
19322532.6
19333432.6
19343532.6
19352832.6
19364032.6
19373432.6
19383832.6
19393832.6
19402229.5
19412429.5
19423429.5
19432829.5
19444129.5
19452829.5
19512135.2
19523535.2
19544035.2
19554035.2
19584035.2
19593535.2
19672731.7
19683031.7
19693831.7
19702020
First to last qualifying date each year at Rosera For each year, a bar from the first to the last day at Rosera meeting 10 mm (0.39 in). 1901: 1 January 1901 to 26 September 19011902: 13 March 1902 to 19 October 19021903: 27 May 1903 to 16 October 19031904: 9 April 1904 to 18 October 19041905: 23 January 1905 to 30 September 19051906: 16 February 1906 to 6 October 19061907: 6 February 1907 to 22 September 19071908: 12 January 1908 to 30 September 19081909: 19 April 1909 to 3 October 19091910: 13 June 1910 to 24 September 19101911: 20 April 1911 to 13 October 19111912: 28 March 1912 to 24 November 19121913: 16 February 1913 to 13 December 19131914: 18 February 1914 to 9 October 19141915: 5 February 1915 to 19 November 19151916: 18 February 1916 to 22 October 19161917: 5 February 1917 to 8 October 19171918: 26 April 1918 to 8 September 19181919: 30 January 1919 to 3 October 19191920: 4 February 1920 to 26 September 19201921: 22 January 1921 to 13 October 19211922: 30 January 1922 to 3 October 19221923: 11 May 1923 to 22 September 19231924: 5 May 1924 to 8 November 19241925: 19 January 1925 to 20 October 19251926: 13 April 1926 to 28 September 19261927: 13 January 1927 to 15 November 19271928: 20 January 1928 to 15 October 19281929: 17 January 1929 to 21 December 19291930: 6 May 1930 to 30 December 19301931: 8 February 1931 to 17 October 19311932: 2 June 1932 to 6 November 19321933: 15 February 1933 to 22 October 19331934: 29 January 1934 to 17 October 19341935: 18 February 1935 to 7 October 19351936: 16 May 1936 to 19 October 19361937: 12 February 1937 to 7 October 19371938: 26 January 1938 to 12 October 19381939: 23 February 1939 to 3 October 19391940: 4 February 1940 to 24 September 19401941: 31 January 1941 to 23 September 19411942: 22 February 1942 to 30 September 19421943: 15 February 1943 to 20 October 19431944: 25 January 1944 to 6 October 19441945: 6 January 1945 to 23 October 19451951: 22 March 1951 to 29 September 19511952: 21 February 1952 to 23 September 19521954: 9 January 1954 to 30 September 19541955: 2 May 1955 to 10 October 19551958: 29 January 1958 to 11 October 19581959: 22 January 1959 to 27 October 19591967: 15 March 1967 to 24 September 19671968: 31 January 1968 to 4 October 19681969: 13 January 1969 to 10 November 19691970: 20 January 1970 to 16 September 197019011908191519221929193619431958JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rosera meeting 10 mm (0.39 in).
First to last qualifying date each year at Rosera
YearFirst dateLast date
19011901-01-011901-09-26
19021902-03-131902-10-19
19031903-05-271903-10-16
19041904-04-091904-10-18
19051905-01-231905-09-30
19061906-02-161906-10-06
19071907-02-061907-09-22
19081908-01-121908-09-30
19091909-04-191909-10-03
19101910-06-131910-09-24
19111911-04-201911-10-13
19121912-03-281912-11-24
19131913-02-161913-12-13
19141914-02-181914-10-09
19151915-02-051915-11-19
19161916-02-181916-10-22
19171917-02-051917-10-08
19181918-04-261918-09-08
19191919-01-301919-10-03
19201920-02-041920-09-26
19211921-01-221921-10-13
19221922-01-301922-10-03
19231923-05-111923-09-22
19241924-05-051924-11-08
19251925-01-191925-10-20
19261926-04-131926-09-28
19271927-01-131927-11-15
19281928-01-201928-10-15
19291929-01-171929-12-21
19301930-05-061930-12-30
19311931-02-081931-10-17
19321932-06-021932-11-06
19331933-02-151933-10-22
19341934-01-291934-10-17
19351935-02-181935-10-07
19361936-05-161936-10-19
19371937-02-121937-10-07
19381938-01-261938-10-12
19391939-02-231939-10-03
19401940-02-041940-09-24
19411941-01-311941-09-23
19421942-02-221942-09-30
19431943-02-151943-10-20
19441944-01-251944-10-06
19451945-01-061945-10-23
19511951-03-221951-09-29
19521952-02-211952-09-23
19541954-01-091954-09-30
19551955-05-021955-10-10
19581958-01-291958-10-11
19591959-01-221959-10-27
19671967-03-151967-09-24
19681968-01-311968-10-04
19691969-01-131969-11-10
19701970-01-201970-09-16

Every Fixed Threshold

Fixed thresholds at Rosera
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5544191620
25 mm (0.98 in): Days with 25 mm or more rain552519157
50 mm (1.97 in): Days with 50 mm or more rain521419162
100 mm (3.94 in): Days with 100 mm or more rain36619092
200 mm (7.87 in): Days with 200 mm or more rain6219091

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

  • Data for Rosera 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).