Vermeulen Threshold Days by Year

3 fixed thresholds counted per year at Vermeulen (ASN00009928): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Vermeulen Thresholds

Vermeulen: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 2016 with 55.
Vermeulen: days with 25 mm (0.98 in) or more of precipitation in 52 years, most in 1978 with 11.
Vermeulen: days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1976 with 2.
3 fixed thresholds have at least one qualifying day at Vermeulen.

Days with 10 mm (0.39 in) or more of precipitation

52 years with a qualifying day

Days per year at Vermeulen with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 55 in 2016.

Days with 10 mm (0.39 in) or more of precipitation per year at Vermeulen
Year	Days	Decade average
1975	46	39.6
1976	37	39.6
1977	44	39.6
1978	39	39.6
1979	32	39.6
1980	34	35.8
1981	47	35.8
1982	29	35.8
1983	30	35.8
1984	41	35.8
1985	33	35.8
1986	32	35.8
1987	25	35.8
1988	44	35.8
1989	43	35.8
1990	39	39.5
1991	41	39.5
1992	38	39.5
1993	35	39.5
1994	26	39.5
1995	43	39.5
1996	51	39.5
1997	40	39.5
1998	40	39.5
1999	42	39.5
2000	45	39.2
2001	36	39.2
2002	38	39.2
2003	40	39.2
2004	37	39.2
2005	41	39.2
2006	33	39.2
2007	39	39.2
2008	42	39.2
2009	41	39.2
2010	24	37.9
2011	44	37.9
2012	36	37.9
2013	43	37.9
2014	35	37.9
2015	32	37.9
2016	55	37.9
2017	40	37.9
2018	34	37.9
2019	36	37.9
2020	46	37.1
2021	40	37.1
2022	35	37.1
2023	38	37.1
2024	35	37.1
2025	42	37.1
2026	24	37.1

For each year, a bar from the first to the last day at Vermeulen meeting 10 mm (0.39 in).

First to last qualifying date each year at Vermeulen
Year	First date	Last date
1975	1975-03-22	1975-11-17
1976	1976-01-07	1976-11-28
1977	1977-01-19	1977-12-24
1978	1978-02-18	1978-12-02
1979	1979-02-26	1979-11-10
1980	1980-03-20	1980-11-30
1981	1981-03-06	1981-11-28
1982	1982-01-21	1982-11-27
1983	1983-02-16	1983-12-31
1984	1984-02-18	1984-12-28
1985	1985-01-20	1985-11-03
1986	1986-02-21	1986-11-30
1987	1987-03-17	1987-11-30
1988	1988-01-13	1988-11-07
1989	1989-01-06	1989-10-25
1990	1990-01-10	1990-11-20
1991	1991-04-11	1991-11-14
1992	1992-04-03	1992-12-09
1993	1993-03-19	1993-12-13
1994	1994-01-25	1994-11-26
1995	1995-02-24	1995-12-25
1996	1996-01-30	1996-12-13
1997	1997-01-20	1997-11-21
1998	1998-01-16	1998-12-02
1999	1999-03-21	1999-12-13
2000	2000-01-16	2000-12-21
2001	2001-04-25	2001-12-05
2002	2002-04-17	2002-11-01
2003	2003-02-12	2003-11-19
2004	2004-02-17	2004-12-05
2005	2005-02-15	2005-12-23
2006	2006-01-26	2006-11-30
2007	2007-01-03	2007-12-17
2008	2008-04-01	2008-12-21
2009	2009-02-26	2009-11-20
2010	2010-05-13	2010-12-05
2011	2011-01-06	2011-12-08
2012	2012-04-05	2012-12-12
2013	2013-03-26	2013-12-20
2014	2014-04-28	2014-11-13
2015	2015-03-15	2015-12-06
2016	2016-01-18	2016-12-27
2017	2017-02-11	2017-12-18
2018	2018-01-17	2018-12-17
2019	2019-03-07	2019-11-02
2020	2020-01-03	2020-11-30
2021	2021-02-07	2021-11-22
2022	2022-02-07	2022-11-19
2023	2023-03-09	2023-12-28
2024	2024-05-05	2024-11-20
2025	2025-01-18	2025-11-24
2026	2026-03-28	2026-08-27

Every Fixed Threshold

Fixed thresholds at Vermeulen
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	52	55	2016	24
25 mm (0.98 in): Days with 25 mm or more rain	52	11	1978	5
50 mm (1.97 in): Days with 50 mm or more rain	14	2	1976	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1975.

Download the Data

Data for Vermeulen 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Vermeulen Threshold Days by Year

Key Facts for Vermeulen Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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