Trelew Aero Threshold Days by Year

11 fixed thresholds counted per year at Trelew Aero (AR000087828): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Trelew Aero Thresholds

Trelew Aero: nights with a minimum temperature at or below 0 C (32 F) in 64 years, most in 1993 with 80.
Trelew Aero: nights with a minimum temperature at or above 20 C (68 F) in 60 years, most in 1983 with 7.
Trelew Aero: days with a maximum temperature at or above 30 C (86 F) in 48 years, most in 1989 with 64.
Trelew Aero: days with a maximum temperature at or above 35 C (95 F) in 48 years, most in 1989 with 16.
11 fixed thresholds have at least one qualifying day at Trelew Aero.

Days at or above 30 C (86 F)

48 years with a qualifying day

Days per year at Trelew Aero with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1989.

Days at or above 30 C (86 F) per year at Trelew Aero
Year	Days	Decade average
1956	43	40.8
1957	36	40.8
1958	38	40.8
1959	46	40.8
1960	56	39.6
1961	40	39.6
1962	44	39.6
1963	39	39.6
1964	29	39.6
1965	38	39.6
1966	26	39.6
1967	47	39.6
1968	39	39.6
1969	38	39.6
1970	25	35
1971	24	35
1972	33	35
1973	33	35
1974	26	35
1975	45	35
1976	28	35
1977	42	35
1978	42	35
1979	52	35
1980	49	47.9
1981	41	47.9
1982	49	47.9
1983	49	47.9
1984	40	47.9
1985	44	47.9
1986	46	47.9
1987	54	47.9
1988	43	47.9
1989	64	47.9
1990	46	42.8
1991	46	42.8
1992	32	42.8
1993	49	42.8
1994	48	42.8
1995	42	42.8
1996	35	42.8
1997	32	42.8
1998	45	42.8
1999	53	42.8
2000	41	44
2001	62	44
2002	33	44
2003	40	44

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

First to last qualifying date each year at Trelew Aero
Year	First date	Last date
1956	1956-02-02	1956-12-31
1957	1957-01-01	1957-12-27
1958	1958-01-01	1958-12-25
1959	1959-01-01	1959-12-27
1960	1960-01-03	1960-12-30
1961	1961-01-08	1961-12-31
1962	1962-01-03	1962-12-31
1963	1963-01-06	1963-12-27
1964	1964-01-04	1964-12-04
1965	1965-01-04	1965-12-29
1966	1966-01-03	1966-12-31
1967	1967-01-01	1967-12-30
1968	1968-01-04	1968-12-09
1969	1969-01-02	1969-12-31
1970	1970-01-11	1970-12-24
1971	1971-01-01	1971-12-25
1972	1972-01-07	1972-12-25
1973	1973-01-10	1973-12-31
1974	1974-01-11	1974-12-25
1975	1975-01-02	1975-12-31
1976	1976-01-02	1976-12-30
1977	1977-01-06	1977-12-26
1978	1978-01-02	1978-12-26
1979	1979-01-04	1979-12-31
1980	1980-01-01	1980-12-30
1981	1981-01-02	1981-12-29
1982	1982-01-07	1982-12-31
1983	1983-01-02	1983-12-31
1984	1984-01-01	1984-12-30
1985	1985-01-01	1985-12-27
1986	1986-01-01	1986-12-29
1987	1987-01-01	1987-12-31
1988	1988-01-02	1988-12-31
1989	1989-01-02	1989-12-29
1990	1990-01-01	1990-12-31
1991	1991-01-03	1991-12-27
1992	1992-01-04	1992-12-26
1993	1993-01-01	1993-12-29
1994	1994-01-03	1994-12-31
1995	1995-01-02	1995-12-31
1996	1996-01-06	1996-12-24
1997	1997-01-01	1997-12-24
1998	1998-01-02	1998-12-26
1999	1999-01-05	1999-12-31
2000	2000-01-02	2000-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-05	2002-12-13
2003	2003-01-07	2003-12-31

Every Fixed Threshold

Fixed thresholds at Trelew Aero
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	48	64	1989	40
35 C (95 F): Days	48	16	1989	2
40 C (104 F): Days	11	3	1989	1
90 F (32.2 C): Days	48	37	1989	24
100 F (37.8 C): Days	36	7	1979	1
0 C (32 F): Frost days (min	64	80	1993	71
-10 C (14 F): Days with min	10	4	1995	2
20 C (68 F): Tropical nights (min	60	7	1983	1
25 C (77 F): Days with min	5	1	1965	1
10 mm (0.39 in): Days with 10 mm or more rain	2	6	1977	4
25 mm (0.98 in): Days with 25 mm or more rain	2	2	1977	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

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Data for Trelew Aero 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Trelew Aero Threshold Days by Year

Key Facts for Trelew Aero Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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