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Built 2026-10-19 (19 October 2026)

Bonrook Threshold Days by Year (ASN00014912)

5 fixed thresholds counted per year at Bonrook (ASN00014912): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bonrook Thresholds

  • Bonrook: days with 10 mm (0.39 in) or more of precipitation in 28 years, most in 1904 with 55.
  • Bonrook: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1904 with 25.
  • Bonrook: days with 50 mm (1.97 in) or more of precipitation in 25 years, most in 1921 with 9.
  • Bonrook: days with 100 mm (3.94 in) or more of precipitation in 11 years, most in 1897 with 2.
  • 5 fixed thresholds have at least one qualifying day at Bonrook.
28 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bonrook Days per year at Bonrook with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 55 in 1904. 02040601896: 361897: 291898: 341899: 391900: 271901: 271902: 301903: 341904: 551905: 281906: 341907: 281908: 281909: 251910: 441911: 371912: 351913: 341914: 251915: 371916: 371917: 371918: 301919: 321920: 281921: 421969: 371970: 271896189919021905190819111914191719201970
Days per year at Bonrook with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 55 in 1904.
Days with 10 mm (0.39 in) or more of precipitation per year at Bonrook
YearDaysDecade average
18963634.5
18972934.5
18983434.5
18993934.5
19002731.6
19012731.6
19023031.6
19033431.6
19045531.6
19052831.6
19063431.6
19072831.6
19082831.6
19092531.6
19104434.8
19113734.8
19123534.8
19133434.8
19142534.8
19153734.8
19163734.8
19173734.8
19183034.8
19193234.8
19202835
19214235
19693737
19702727
First to last qualifying date each year at Bonrook For each year, a bar from the first to the last day at Bonrook meeting 10 mm (0.39 in). 1896: 6 January 1896 to 27 December 18961897: 1 January 1897 to 30 December 18971898: 2 January 1898 to 30 December 18981899: 3 January 1899 to 25 December 18991900: 4 January 1900 to 30 December 19001901: 9 January 1901 to 31 December 19011902: 1 January 1902 to 30 December 19021903: 2 January 1903 to 25 December 19031904: 1 January 1904 to 28 December 19041905: 2 January 1905 to 29 December 19051906: 6 January 1906 to 30 December 19061907: 6 January 1907 to 26 December 19071908: 3 January 1908 to 29 December 19081909: 11 January 1909 to 29 December 19091910: 1 January 1910 to 31 December 19101911: 9 January 1911 to 28 December 19111912: 4 January 1912 to 29 December 19121913: 1 January 1913 to 29 December 19131914: 3 January 1914 to 27 December 19141915: 8 January 1915 to 24 December 19151916: 9 January 1916 to 31 December 19161917: 1 January 1917 to 31 December 19171918: 2 January 1918 to 27 December 19181919: 6 January 1919 to 31 December 19191920: 11 January 1920 to 30 December 19201921: 1 January 1921 to 28 December 19211969: 6 January 1969 to 24 December 19691970: 3 January 1970 to 30 December 19701896190019041908191219161920JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bonrook meeting 10 mm (0.39 in).
First to last qualifying date each year at Bonrook
YearFirst dateLast date
18961896-01-061896-12-27
18971897-01-011897-12-30
18981898-01-021898-12-30
18991899-01-031899-12-25
19001900-01-041900-12-30
19011901-01-091901-12-31
19021902-01-011902-12-30
19031903-01-021903-12-25
19041904-01-011904-12-28
19051905-01-021905-12-29
19061906-01-061906-12-30
19071907-01-061907-12-26
19081908-01-031908-12-29
19091909-01-111909-12-29
19101910-01-011910-12-31
19111911-01-091911-12-28
19121912-01-041912-12-29
19131913-01-011913-12-29
19141914-01-031914-12-27
19151915-01-081915-12-24
19161916-01-091916-12-31
19171917-01-011917-12-31
19181918-01-021918-12-27
19191919-01-061919-12-31
19201920-01-111920-12-30
19211921-01-011921-12-28
19691969-01-061969-12-24
19701970-01-031970-12-30

Every Fixed Threshold

Fixed thresholds at Bonrook
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2855190427
25 mm (0.98 in): Days with 25 mm or more rain2825190410
50 mm (1.97 in): Days with 50 mm or more rain25919213
100 mm (3.94 in): Days with 100 mm or more rain11218972
200 mm (7.87 in): Days with 200 mm or more rain2118971

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 Bonrook 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).