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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Aldergrove Threshold Days by Year (UKM00003917)

5 fixed thresholds counted per year at Aldergrove (UKM00003917): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aldergrove Thresholds

  • Aldergrove: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 2023 with 26.
  • Aldergrove: days with 25 mm (0.98 in) or more of precipitation in 18 years, most in 1976 with 2.
  • Aldergrove: days with a maximum temperature at or below 0 C (32 F) in 2 years, most in 1976 with 2.
  • 5 fixed thresholds have at least one qualifying day at Aldergrove.
22 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Aldergrove Days per year at Aldergrove with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 2023. 01020301974: 161975: 81976: 111977: 161978: 191979: 151980: 231981: 182006: 132007: 152008: 212009: 152010: 202011: 162012: 142013: 192014: 302015: 232022: 242023: 262024: 142025: 719741977198020072010201320222025
Days per year at Aldergrove with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 2023.
Days with 10 mm (0.39 in) or more of precipitation per year at Aldergrove
YearDaysDecade average
19741614.2
1975814.2
19761114.2
19771614.2
19781914.2
19791514.2
19802320.5
19811820.5
20061316
20071516
20082116
20091516
20102020.3
20111620.3
20121420.3
20131920.3
20143020.3
20152320.3
20222417.8
20232617.8
20241417.8
2025717.8
First to last qualifying date each year at Aldergrove For each year, a bar from the first to the last day at Aldergrove meeting 10 mm (0.39 in). 1974: 7 January 1974 to 29 December 19741975: 25 January 1975 to 1 December 19751976: 1 January 1976 to 17 December 19761977: 4 January 1977 to 27 December 19771978: 3 January 1978 to 28 December 19781979: 14 January 1979 to 27 December 19791980: 3 January 1980 to 24 December 19801981: 6 March 1981 to 3 October 19812006: 9 March 2006 to 25 November 20062007: 9 January 2007 to 9 December 20072008: 1 January 2008 to 13 December 20082009: 15 January 2009 to 5 December 20092010: 22 January 2010 to 27 December 20102011: 7 February 2011 to 17 November 20112012: 5 January 2012 to 27 December 20122013: 7 January 2013 to 30 December 20132014: 17 January 2014 to 24 December 20142015: 21 January 2015 to 31 December 20152022: 14 February 2022 to 30 December 20222023: 11 March 2023 to 31 December 20232024: 22 January 2024 to 7 December 20242025: 19 April 2025 to 22 July 202519741977198020072010201320222025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Aldergrove meeting 10 mm (0.39 in).
First to last qualifying date each year at Aldergrove
YearFirst dateLast date
19741974-01-071974-12-29
19751975-01-251975-12-01
19761976-01-011976-12-17
19771977-01-041977-12-27
19781978-01-031978-12-28
19791979-01-141979-12-27
19801980-01-031980-12-24
19811981-03-061981-10-03
20062006-03-092006-11-25
20072007-01-092007-12-09
20082008-01-012008-12-13
20092009-01-152009-12-05
20102010-01-222010-12-27
20112011-02-072011-11-17
20122012-01-052012-12-27
20132013-01-072013-12-30
20142014-01-172014-12-24
20152015-01-212015-12-31
20222022-02-142022-12-30
20232023-03-112023-12-31
20242024-01-222024-12-07
20252025-04-192025-07-22

Every Fixed Threshold

Fixed thresholds at Aldergrove
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max2219761
0 C (32 F): Frost days (min10n/a1
10 mm (0.39 in): Days with 10 mm or more rain222620237
25 mm (0.98 in): Days with 25 mm or more rain18219761
50 mm (1.97 in): Days with 50 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Aldergrove 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).