Dilia Threshold Days by Year (USC00292510)

18 fixed thresholds counted per year at Dilia (USC00292510): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dilia Thresholds

Dilia: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 1997 with 25.
Dilia: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 2020 with 130.
Dilia: days with a maximum temperature at or above 35 C (95 F) in 67 years, most in 1980 with 53.
Dilia: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 2020 with 100.
18 fixed thresholds have at least one qualifying day at Dilia.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Dilia with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 130 in 2020.

Days at or above 30 C (86 F) per year at Dilia
Year	Days	Decade average
1945	93	82.3
1946	75	82.3
1948	93	82.3
1949	68	82.3
1950	69	85.3
1951	90	85.3
1952	97	85.3
1953	100	85.3
1955	49	85.3
1956	105	85.3
1957	82	85.3
1958	90	85.3
1960	70	76.2
1965	78	76.2
1966	83	76.2
1967	70	76.2
1968	71	76.2
1969	85	76.2
1970	93	80.5
1971	72	80.5
1972	68	80.5
1973	77	80.5
1974	89	80.5
1975	75	80.5
1976	72	80.5
1977	88	80.5
1978	76	80.5
1979	95	80.5
1980	108	89.5
1981	91	89.5
1982	90	89.5
1983	104	89.5
1984	92	89.5
1985	93	89.5
1986	84	89.5
1987	71	89.5
1988	73	89.5
1989	89	89.5
1990	81	85.7
1991	71	85.7
1992	96	85.7
1993	86	85.7
1994	94	85.7
1995	80	85.7
1996	91	85.7
1997	88	85.7
1998	99	85.7
1999	71	85.7
2000	123	102.5
2001	120	102.5
2002	103	102.5
2003	107	102.5
2004	85	102.5
2005	99	102.5
2006	87	102.5
2007	101	102.5
2008	93	102.5
2009	107	102.5
2010	109	106.8
2011	111	106.8
2012	122	106.8
2013	105	106.8
2014	92	106.8
2015	107	106.8
2017	98	106.8
2019	110	106.8
2020	130	130

For each year, a bar from the first to the last day at Dilia meeting 30 C (86 F).

First to last qualifying date each year at Dilia
Year	First date	Last date
1945	1945-05-18	1945-09-20
1946	1946-05-08	1946-09-26
1948	1948-04-18	1948-09-24
1949	1949-05-10	1949-09-20
1950	1950-05-22	1950-10-13
1951	1951-05-26	1951-09-26
1952	1952-05-03	1952-10-09
1953	1953-05-21	1953-10-07
1955	1955-05-28	1955-09-21
1956	1956-05-06	1956-09-28
1957	1957-06-06	1957-09-28
1958	1958-05-21	1958-09-03
1960	1960-05-19	1960-10-11
1965	1965-04-21	1965-09-13
1966	1966-05-06	1966-09-29
1967	1967-04-04	1967-10-19
1968	1968-05-26	1968-10-14
1969	1969-05-18	1969-10-01
1970	1970-05-14	1970-09-20
1971	1971-05-03	1971-09-14
1972	1972-05-16	1972-10-02
1973	1973-05-10	1973-10-04
1974	1974-05-08	1974-09-11
1975	1975-05-12	1975-09-18
1976	1976-05-15	1976-09-18
1977	1977-05-28	1977-10-04
1978	1978-05-14	1978-10-01
1979	1979-05-07	1979-10-25
1980	1980-05-30	1980-10-05
1981	1981-04-26	1981-09-30
1982	1982-05-27	1982-09-23
1983	1983-05-24	1983-09-28
1984	1984-05-09	1984-09-24
1985	1985-05-09	1985-10-06
1986	1986-05-21	1986-09-21
1987	1987-04-17	1987-10-05
1988	1988-05-12	1988-10-17
1989	1989-03-11	1989-10-13
1990	1990-05-14	1990-09-27
1991	1991-05-09	1991-10-17
1992	1992-04-27	1992-10-03
1993	1993-04-22	1993-10-05
1994	1994-04-18	1994-09-30
1995	1995-05-15	1995-09-12
1996	1996-04-24	1996-10-12
1997	1997-05-07	1997-10-05
1998	1998-05-17	1998-09-29
1999	1999-05-13	1999-10-12
2000	2000-04-26	2000-10-03
2001	2001-04-30	2001-10-06
2002	2002-04-23	2002-09-25
2003	2003-05-12	2003-10-23
2004	2004-05-04	2004-09-18
2005	2005-05-10	2005-10-01
2006	2006-04-13	2006-10-02
2007	2007-03-17	2007-10-14
2008	2008-05-18	2008-10-03
2009	2009-04-22	2009-09-29
2010	2010-05-06	2010-10-01
2011	2011-04-02	2011-10-16
2012	2012-03-25	2012-10-20
2013	2013-04-29	2013-10-01
2014	2014-04-11	2014-10-25
2015	2015-05-02	2015-10-15
2017	2017-03-21	2017-09-22
2019	2019-04-20	2019-10-02
2020	2020-04-26	2020-10-21

Every Fixed Threshold

Fixed thresholds at Dilia
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	130	2020	130
35 C (95 F): Days	67	53	1980	47
40 C (104 F): Days	7	3	1980	1
90 F (32.2 C): Days	67	100	2020	100
100 F (37.8 C): Days	42	22	1980	15
0 C (32 F): Ice days (max	58	13	1960	1
0 C (32 F): Frost days (min	67	170	1956	108
-10 C (14 F): Days with min	67	46	1956	5
-20 C (-4 F): Days with min	30	7	1948	1
-30 C (-22 F): Days with min	1	1	1990	1
20 C (68 F): Tropical nights (min	36	7	1981	2
25 C (77 F): Days with min	2	1	1978	1
10 mm (0.39 in): Days with 10 mm or more rain	73	25	1997	8
25 mm (0.98 in): Days with 25 mm or more rain	63	9	2017	1
50 mm (1.97 in): Days with 50 mm or more rain	20	2	1971	2
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1942	1
10 cm (3.9 in): Days with 10 cm or more snowfall	55	10	1958	2
25 cm (9.8 in): Days with 25 cm or more snowfall	14	5	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

Data for Dilia 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).

Dilia Threshold Days by Year (USC00292510)

Key Facts for Dilia Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related