Fern Tree (Grays Road) Threshold Days by Year (ASN00094139)

4 fixed thresholds counted per year at Fern Tree (Grays Road) (ASN00094139): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Fern Tree (Grays Road) Thresholds

Fern Tree (Grays Road): days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 2009 with 51.
Fern Tree (Grays Road): days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 2016 with 15.
Fern Tree (Grays Road): days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1969 with 5.
Fern Tree (Grays Road): days with 100 mm (3.94 in) or more of precipitation in 7 years, most in 1970 with 2.
4 fixed thresholds have at least one qualifying day at Fern Tree (Grays Road).

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

40 years with a qualifying day

Days per year at Fern Tree (Grays Road) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 51 in 2009.

Days with 10 mm (0.39 in) or more of precipitation per year at Fern Tree (Grays Road)
Year	Days	Decade average
1969	31	31
1970	37	32.3
1971	45	32.3
1972	18	32.3
1973	31	32.3
1974	32	32.3
1975	39	32.3
1976	42	32.3
1977	23	32.3
1978	33	32.3
1979	23	32.3
1980	31	32.3
1981	33	32.3
1982	22	32.3
1983	33	32.3
1984	27	32.3
1985	47	32.3
1986	35	32.3
1987	31	32.3
1988	36	32.3
1989	28	32.3
1992	26	24.5
1993	20	24.5
1994	23	24.5
1997	28	24.5
1998	29	24.5
1999	21	24.5
2000	28	30.9
2001	36	30.9
2002	23	30.9
2004	22	30.9
2005	35	30.9
2007	30	30.9
2008	22	30.9
2009	51	30.9
2011	47	33.6
2012	30	33.6
2013	34	33.6
2014	18	33.6
2016	39	33.6

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

First to last qualifying date each year at Fern Tree (Grays Road)
Year	First date	Last date
1969	1969-01-15	1969-12-14
1970	1970-01-03	1970-12-31
1971	1971-01-01	1971-12-10
1972	1972-01-10	1972-12-25
1973	1973-01-13	1973-12-22
1974	1974-02-02	1974-12-28
1975	1975-01-09	1975-12-17
1976	1976-01-15	1976-12-24
1977	1977-01-17	1977-11-30
1978	1978-01-01	1978-12-27
1979	1979-01-21	1979-12-31
1980	1980-01-07	1980-12-29
1981	1981-02-25	1981-12-28
1982	1982-01-07	1982-12-08
1983	1983-01-27	1983-12-07
1984	1984-03-01	1984-12-21
1985	1985-01-05	1985-12-24
1986	1986-01-02	1986-12-17
1987	1987-01-07	1987-12-21
1988	1988-01-31	1988-12-26
1989	1989-01-10	1989-12-14
1992	1992-01-02	1992-11-22
1993	1993-01-25	1993-12-29
1994	1994-01-07	1994-11-21
1997	1997-01-16	1997-12-02
1998	1998-01-29	1998-12-28
1999	1999-01-26	1999-12-06
2000	2000-01-04	2000-12-27
2001	2001-01-08	2001-12-23
2002	2002-01-03	2002-11-01
2004	2004-01-18	2004-12-29
2005	2005-01-05	2005-12-25
2007	2007-01-06	2007-12-22
2008	2008-02-13	2008-12-14
2009	2009-01-16	2009-12-18
2011	2011-01-09	2011-12-26
2012	2012-01-18	2012-11-10
2013	2013-02-01	2013-12-29
2014	2014-02-16	2014-12-26
2016	2016-01-25	2016-12-05

Every Fixed Threshold

Fixed thresholds at Fern Tree (Grays Road)
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	40	51	2009	39
25 mm (0.98 in): Days with 25 mm or more rain	40	15	2016	15
50 mm (1.97 in): Days with 50 mm or more rain	29	5	1969	2
100 mm (3.94 in): Days with 100 mm or more rain	7	2	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

Data for Fern Tree (Grays Road) 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Fern Tree (Grays Road) Threshold Days by Year (ASN00094139)

Key Facts for Fern Tree (Grays Road) Thresholds

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

Every Fixed Threshold

Download the Data

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