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Built 2026-10-19 (19 October 2026)

Norwood Threshold Days by Year

4 fixed thresholds counted per year at Norwood (ASN00008153): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Norwood Thresholds

  • Norwood: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1918 with 19.
  • Norwood: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1916 with 6.
  • Norwood: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1915 with 2.
  • Norwood: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1915 with 1.
  • 4 fixed thresholds have at least one qualifying day at Norwood.
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Norwood Days per year at Norwood with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1918. 051015201913: 101914: 31915: 181916: 111917: 171918: 191919: 121920: 71921: 111922: 61923: 111924: 41925: 101926: 61927: 91928: 71929: 101930: 91931: 51932: 101933: 91934: 111935: 61936: 51937: 51938: 51939: 151940: 61941: 91942: 81943: 121944: 121945: 81946: 111947: 81948: 71949: 91950: 71951: 131954: 51913191719211925192919331937194119451949
Days per year at Norwood with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1918.
Days with 10 mm (0.39 in) or more of precipitation per year at Norwood
YearDaysDecade average
19131012.9
1914312.9
19151812.9
19161112.9
19171712.9
19181912.9
19191212.9
192078.1
1921118.1
192268.1
1923118.1
192448.1
1925108.1
192668.1
192798.1
192878.1
1929108.1
193098
193158
1932108
193398
1934118
193568
193658
193758
193858
1939158
194069
194199
194289
1943129
1944129
194589
1946119
194789
194879
194999
195078.3
1951138.3
195458.3
First to last qualifying date each year at Norwood For each year, a bar from the first to the last day at Norwood meeting 10 mm (0.39 in). 1913: 19 April 1913 to 20 December 19131914: 27 July 1914 to 1 December 19141915: 1 January 1915 to 16 December 19151916: 13 January 1916 to 5 October 19161917: 18 March 1917 to 9 December 19171918: 11 February 1918 to 16 September 19181919: 17 April 1919 to 5 November 19191920: 12 March 1920 to 12 September 19201921: 15 February 1921 to 17 September 19211922: 2 March 1922 to 25 September 19221923: 23 April 1923 to 12 July 19231924: 18 March 1924 to 8 August 19241925: 23 January 1925 to 25 December 19251926: 6 February 1926 to 19 November 19261927: 13 March 1927 to 19 September 19271928: 28 January 1928 to 6 December 19281929: 15 February 1929 to 15 November 19291930: 7 March 1930 to 12 December 19301931: 22 February 1931 to 25 December 19311932: 10 January 1932 to 18 December 19321933: 7 March 1933 to 30 August 19331934: 16 January 1934 to 23 August 19341935: 6 January 1935 to 7 August 19351936: 6 March 1936 to 2 August 19361937: 19 April 1937 to 30 August 19371938: 15 March 1938 to 23 November 19381939: 26 January 1939 to 29 July 19391940: 14 May 1940 to 3 December 19401941: 5 April 1941 to 14 November 19411942: 19 March 1942 to 2 December 19421943: 31 January 1943 to 8 December 19431944: 15 March 1944 to 28 August 19441945: 5 February 1945 to 8 August 19451946: 5 February 1946 to 12 November 19461947: 19 January 1947 to 26 October 19471948: 8 February 1948 to 24 November 19481949: 31 January 1949 to 1 September 19491950: 10 May 1950 to 30 August 19501951: 18 January 1951 to 25 July 19511954: 26 May 1954 to 7 December 195419131918192319281933193819431948JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Norwood meeting 10 mm (0.39 in).
First to last qualifying date each year at Norwood
YearFirst dateLast date
19131913-04-191913-12-20
19141914-07-271914-12-01
19151915-01-011915-12-16
19161916-01-131916-10-05
19171917-03-181917-12-09
19181918-02-111918-09-16
19191919-04-171919-11-05
19201920-03-121920-09-12
19211921-02-151921-09-17
19221922-03-021922-09-25
19231923-04-231923-07-12
19241924-03-181924-08-08
19251925-01-231925-12-25
19261926-02-061926-11-19
19271927-03-131927-09-19
19281928-01-281928-12-06
19291929-02-151929-11-15
19301930-03-071930-12-12
19311931-02-221931-12-25
19321932-01-101932-12-18
19331933-03-071933-08-30
19341934-01-161934-08-23
19351935-01-061935-08-07
19361936-03-061936-08-02
19371937-04-191937-08-30
19381938-03-151938-11-23
19391939-01-261939-07-29
19401940-05-141940-12-03
19411941-04-051941-11-14
19421942-03-191942-12-02
19431943-01-311943-12-08
19441944-03-151944-08-28
19451945-02-051945-08-08
19461946-02-051946-11-12
19471947-01-191947-10-26
19481948-02-081948-11-24
19491949-01-311949-09-01
19501950-05-101950-08-30
19511951-01-181951-07-25
19541954-05-261954-12-07

Every Fixed Threshold

Fixed thresholds at Norwood
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain401919185
25 mm (0.98 in): Days with 25 mm or more rain32619161
50 mm (1.97 in): Days with 50 mm or more rain5219151
100 mm (3.94 in): Days with 100 mm or more rain1119151

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1913.

Download the Data

  • Data for Norwood 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).