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Built 2026-10-19 (19 October 2026)

Princetown (Rivernook) Threshold Days by Year (ASN00090073)

3 fixed thresholds counted per year at Princetown (Rivernook) (ASN00090073): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Princetown (Rivernook) Thresholds

  • Princetown (Rivernook): days with 10 mm (0.39 in) or more of precipitation in 45 years, most in 1923 with 37.
  • Princetown (Rivernook): days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1923 with 7.
  • Princetown (Rivernook): days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1928 with 1.
  • 3 fixed thresholds have at least one qualifying day at Princetown (Rivernook).
45 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Princetown (Rivernook) Days per year at Princetown (Rivernook) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1923. 0102030401902: 241903: 351904: 161905: 201906: 291907: 161908: 271909: 211910: 311911: 281912: 181913: 171914: 151915: 291916: 271917: 311918: 221919: 211920: 221921: 221922: 281923: 371924: 181925: 201926: 211927: 191928: 321929: 311930: 301931: 261932: 231933: 211934: 251935: 351936: 201937: 271938: 271939: 361940: 161941: 201942: 261943: 241944: 271945: 231946: 35190219071912191719221927193219371942
Days per year at Princetown (Rivernook) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1923.
Days with 10 mm (0.39 in) or more of precipitation per year at Princetown (Rivernook)
YearDaysDecade average
19022423.5
19033523.5
19041623.5
19052023.5
19062923.5
19071623.5
19082723.5
19092123.5
19103123.9
19112823.9
19121823.9
19131723.9
19141523.9
19152923.9
19162723.9
19173123.9
19182223.9
19192123.9
19202225
19212225
19222825
19233725
19241825
19252025
19262125
19271925
19283225
19293125
19303027
19312627
19322327
19332127
19342527
19353527
19362027
19372727
19382727
19393627
19401624.4
19412024.4
19422624.4
19432424.4
19442724.4
19452324.4
19463524.4
First to last qualifying date each year at Princetown (Rivernook) For each year, a bar from the first to the last day at Princetown (Rivernook) meeting 10 mm (0.39 in). 1902: 3 February 1902 to 20 December 19021903: 6 January 1903 to 27 December 19031904: 3 January 1904 to 19 October 19041905: 29 January 1905 to 3 December 19051906: 28 February 1906 to 29 November 19061907: 7 February 1907 to 29 December 19071908: 9 January 1908 to 22 December 19081909: 22 January 1909 to 4 December 19091910: 6 March 1910 to 23 December 19101911: 7 February 1911 to 26 December 19111912: 5 March 1912 to 11 December 19121913: 5 February 1913 to 23 December 19131914: 27 January 1914 to 29 December 19141915: 20 January 1915 to 26 October 19151916: 28 January 1916 to 15 November 19161917: 15 February 1917 to 31 December 19171918: 17 February 1918 to 19 November 19181919: 7 January 1919 to 28 December 19191920: 29 February 1920 to 5 November 19201921: 2 January 1921 to 26 November 19211922: 21 February 1922 to 29 October 19221923: 10 May 1923 to 16 December 19231924: 26 January 1924 to 8 November 19241925: 14 January 1925 to 20 November 19251926: 9 February 1926 to 17 December 19261927: 5 February 1927 to 5 December 19271928: 1 January 1928 to 26 October 19281929: 30 January 1929 to 28 December 19291930: 20 February 1930 to 26 December 19301931: 25 January 1931 to 18 November 19311932: 12 January 1932 to 1 December 19321933: 30 January 1933 to 16 December 19331934: 9 January 1934 to 30 November 19341935: 5 January 1935 to 22 November 19351936: 9 January 1936 to 30 December 19361937: 1 January 1937 to 8 December 19371938: 26 January 1938 to 4 November 19381939: 4 January 1939 to 25 December 19391940: 6 January 1940 to 31 December 19401941: 25 January 1941 to 7 December 19411942: 20 January 1942 to 19 December 19421943: 18 February 1943 to 28 September 19431944: 3 January 1944 to 21 December 19441945: 31 January 1945 to 27 December 19451946: 4 January 1946 to 20 November 194619021908191419201926193219381944JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Princetown (Rivernook) meeting 10 mm (0.39 in).
First to last qualifying date each year at Princetown (Rivernook)
YearFirst dateLast date
19021902-02-031902-12-20
19031903-01-061903-12-27
19041904-01-031904-10-19
19051905-01-291905-12-03
19061906-02-281906-11-29
19071907-02-071907-12-29
19081908-01-091908-12-22
19091909-01-221909-12-04
19101910-03-061910-12-23
19111911-02-071911-12-26
19121912-03-051912-12-11
19131913-02-051913-12-23
19141914-01-271914-12-29
19151915-01-201915-10-26
19161916-01-281916-11-15
19171917-02-151917-12-31
19181918-02-171918-11-19
19191919-01-071919-12-28
19201920-02-291920-11-05
19211921-01-021921-11-26
19221922-02-211922-10-29
19231923-05-101923-12-16
19241924-01-261924-11-08
19251925-01-141925-11-20
19261926-02-091926-12-17
19271927-02-051927-12-05
19281928-01-011928-10-26
19291929-01-301929-12-28
19301930-02-201930-12-26
19311931-01-251931-11-18
19321932-01-121932-12-01
19331933-01-301933-12-16
19341934-01-091934-11-30
19351935-01-051935-11-22
19361936-01-091936-12-30
19371937-01-011937-12-08
19381938-01-261938-11-04
19391939-01-041939-12-25
19401940-01-061940-12-31
19411941-01-251941-12-07
19421942-01-201942-12-19
19431943-02-181943-09-28
19441944-01-031944-12-21
19451945-01-311945-12-27
19461946-01-041946-11-20

Every Fixed Threshold

Fixed thresholds at Princetown (Rivernook)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4537192335
25 mm (0.98 in): Days with 25 mm or more rain42719237
50 mm (1.97 in): Days with 50 mm or more rain7119281

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

  • Data for Princetown (Rivernook) 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).