Built 2026-10-19 (19 October 2026)

Lake Boulka Threshold Days by Year (ASN00046088)

4 fixed thresholds counted per year at Lake Boulka (ASN00046088): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lake Boulka Thresholds

  • Lake Boulka: days with 10 mm (0.39 in) or more of precipitation in 14 years, most in 1911 with 10.
  • Lake Boulka: days with 25 mm (0.98 in) or more of precipitation in 8 years, most in 1911 with 5.
  • Lake Boulka: days with 50 mm (1.97 in) or more of precipitation in 4 years, most in 1900 with 1.
  • Lake Boulka: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1901 with 1.
  • 4 fixed thresholds have at least one qualifying day at Lake Boulka.
14 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Boulka Days per year at Lake Boulka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 10 in 1911. 0358101878: 51900: 31901: 31902: 41904: 51905: 21906: 41907: 61908: 41909: 31910: 51911: 101912: 31913: 11878190119041906190819101912
Days per year at Lake Boulka with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 10 in 1911.
Days with 10 mm (0.39 in) or more of precipitation per year at Lake Boulka
YearDaysDecade average
187855
190033.8
190133.8
190243.8
190453.8
190523.8
190643.8
190763.8
190843.8
190933.8
191054.8
1911104.8
191234.8
191314.8
First to last qualifying date each year at Lake Boulka For each year, a bar from the first to the last day at Lake Boulka meeting 10 mm (0.39 in). 1878: 25 February 1878 to 6 October 18781900: 20 January 1900 to 17 November 19001901: 13 February 1901 to 24 August 19011902: 2 October 1902 to 17 December 19021904: 24 February 1904 to 26 September 19041905: 10 April 1905 to 1 July 19051906: 11 June 1906 to 18 December 19061907: 27 January 1907 to 28 December 19071908: 4 March 1908 to 1 December 19081909: 15 May 1909 to 23 June 19091910: 10 January 1910 to 5 November 19101911: 1 February 1911 to 16 December 19111912: 8 June 1912 to 17 November 19121913: 23 October 1913 to 23 October 19131878190119041906190819101912JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lake Boulka meeting 10 mm (0.39 in).
First to last qualifying date each year at Lake Boulka
YearFirst dateLast date
18781878-02-251878-10-06
19001900-01-201900-11-17
19011901-02-131901-08-24
19021902-10-021902-12-17
19041904-02-241904-09-26
19051905-04-101905-07-01
19061906-06-111906-12-18
19071907-01-271907-12-28
19081908-03-041908-12-01
19091909-05-151909-06-23
19101910-01-101910-11-05
19111911-02-011911-12-16
19121912-06-081912-11-17
19131913-10-231913-10-23

Every Fixed Threshold

Fixed thresholds at Lake Boulka
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain141019111
25 mm (0.98 in): Days with 25 mm or more rain8519111
50 mm (1.97 in): Days with 50 mm or more rain4119001
100 mm (3.94 in): Days with 100 mm or more rain1119011

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1878.

Download the Data

  • Data for Lake Boulka 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).