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

Walhallow Threshold Days by Year (ASN00015147)

4 fixed thresholds counted per year at Walhallow (ASN00015147): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Walhallow Thresholds

  • Walhallow: days with 10 mm (0.39 in) or more of precipitation in 17 years, most in 2000 with 34.
  • Walhallow: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 2000 with 17.
  • Walhallow: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1993 with 6.
  • Walhallow: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1991 with 1.
  • 4 fixed thresholds have at least one qualifying day at Walhallow.
17 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Walhallow Days per year at Walhallow with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 2000. 0102030401920: 221989: 151990: 71991: 141992: 101993: 261998: 141999: 212000: 342001: 162002: 112003: 192004: 172005: 82006: 232007: 192018: 14192019901992199820002002200420062018
Days per year at Walhallow with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 2000.
Days with 10 mm (0.39 in) or more of precipitation per year at Walhallow
YearDaysDecade average
19202222
19891515
1990715.3
19911415.3
19921015.3
19932615.3
19981415.3
19992115.3
20003418.4
20011618.4
20021118.4
20031918.4
20041718.4
2005818.4
20062318.4
20071918.4
20181414
First to last qualifying date each year at Walhallow For each year, a bar from the first to the last day at Walhallow meeting 10 mm (0.39 in). 1920: 9 January 1920 to 31 December 19201989: 3 January 1989 to 28 December 19891990: 8 January 1990 to 21 May 19901991: 3 January 1991 to 16 November 19911992: 1 January 1992 to 17 December 19921993: 4 January 1993 to 24 December 19931998: 23 January 1998 to 29 December 19981999: 3 January 1999 to 25 December 19992000: 10 January 2000 to 27 December 20002001: 26 January 2001 to 10 November 20012002: 12 January 2002 to 21 February 20022003: 1 January 2003 to 30 December 20032004: 12 January 2004 to 27 December 20042005: 12 January 2005 to 25 December 20052006: 3 January 2006 to 22 December 20062007: 12 January 2007 to 10 December 20072018: 3 January 2018 to 19 November 2018192019911998200120042007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Walhallow meeting 10 mm (0.39 in).
First to last qualifying date each year at Walhallow
YearFirst dateLast date
19201920-01-091920-12-31
19891989-01-031989-12-28
19901990-01-081990-05-21
19911991-01-031991-11-16
19921992-01-011992-12-17
19931993-01-041993-12-24
19981998-01-231998-12-29
19991999-01-031999-12-25
20002000-01-102000-12-27
20012001-01-262001-11-10
20022002-01-122002-02-21
20032003-01-012003-12-30
20042004-01-122004-12-27
20052005-01-122005-12-25
20062006-01-032006-12-22
20072007-01-122007-12-10
20182018-01-032018-11-19

Every Fixed Threshold

Fixed thresholds at Walhallow
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1734200014
25 mm (0.98 in): Days with 25 mm or more rain171720004
50 mm (1.97 in): Days with 50 mm or more rain15619933
100 mm (3.94 in): Days with 100 mm or more rain1119911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Walhallow 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).