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Built 2026-10-19 (19 October 2026)

Black River Threshold Days by Year (ASN00091137)

3 fixed thresholds counted per year at Black River (ASN00091137): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Black River Thresholds

  • Black River: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1923 with 45.
  • Black River: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1907 with 9.
  • Black River: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1929 with 2.
  • 3 fixed thresholds have at least one qualifying day at Black River.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Black River Days per year at Black River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1923. 02040601896: 331897: 281898: 381899: 351900: 311907: 291908: 221909: 391910: 401911: 311912: 381913: 281914: 191915: 391916: 411917: 401918: 251919: 171920: 221921: 231922: 311923: 451924: 221925: 201926: 251927: 191928: 321929: 301896189919081911191419171920192319261929
Days per year at Black River with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 45 in 1923.
Days with 10 mm (0.39 in) or more of precipitation per year at Black River
YearDaysDecade average
18963333.5
18972833.5
18983833.5
18993533.5
19003130.3
19072930.3
19082230.3
19093930.3
19104031.8
19113131.8
19123831.8
19132831.8
19141931.8
19153931.8
19164131.8
19174031.8
19182531.8
19191731.8
19202226.9
19212326.9
19223126.9
19234526.9
19242226.9
19252026.9
19262526.9
19271926.9
19283226.9
19293026.9
First to last qualifying date each year at Black River For each year, a bar from the first to the last day at Black River meeting 10 mm (0.39 in). 1896: 12 January 1896 to 27 December 18961897: 4 January 1897 to 12 November 18971898: 19 January 1898 to 23 November 18981899: 1 January 1899 to 9 December 18991900: 18 January 1900 to 12 December 19001907: 3 January 1907 to 17 October 19071908: 9 January 1908 to 26 November 19081909: 16 February 1909 to 21 December 19091910: 10 January 1910 to 4 December 19101911: 11 February 1911 to 27 December 19111912: 22 January 1912 to 23 December 19121913: 5 March 1913 to 26 December 19131914: 27 January 1914 to 26 December 19141915: 8 March 1915 to 14 November 19151916: 4 January 1916 to 29 December 19161917: 9 January 1917 to 30 December 19171918: 15 January 1918 to 3 December 19181919: 18 February 1919 to 8 October 19191920: 11 April 1920 to 14 December 19201921: 2 February 1921 to 27 November 19211922: 30 January 1922 to 30 December 19221923: 5 January 1923 to 14 December 19231924: 9 January 1924 to 11 November 19241925: 13 January 1925 to 3 December 19251926: 28 January 1926 to 17 December 19261927: 27 January 1927 to 5 December 19271928: 1 January 1928 to 15 December 19281929: 26 January 1929 to 29 December 19291896190019101914191819221926JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Black River meeting 10 mm (0.39 in).
First to last qualifying date each year at Black River
YearFirst dateLast date
18961896-01-121896-12-27
18971897-01-041897-11-12
18981898-01-191898-11-23
18991899-01-011899-12-09
19001900-01-181900-12-12
19071907-01-031907-10-17
19081908-01-091908-11-26
19091909-02-161909-12-21
19101910-01-101910-12-04
19111911-02-111911-12-27
19121912-01-221912-12-23
19131913-03-051913-12-26
19141914-01-271914-12-26
19151915-03-081915-11-14
19161916-01-041916-12-29
19171917-01-091917-12-30
19181918-01-151918-12-03
19191919-02-181919-10-08
19201920-04-111920-12-14
19211921-02-021921-11-27
19221922-01-301922-12-30
19231923-01-051923-12-14
19241924-01-091924-11-11
19251925-01-131925-12-03
19261926-01-281926-12-17
19271927-01-271927-12-05
19281928-01-011928-12-15
19291929-01-261929-12-29

Every Fixed Threshold

Fixed thresholds at Black River
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2845192330
25 mm (0.98 in): Days with 25 mm or more rain28919075
50 mm (1.97 in): Days with 50 mm or more rain6219292

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for Black River 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).