La Rioja Aero. Threshold Days by Year (AR000087217)

10 fixed thresholds counted per year at La Rioja Aero. (AR000087217): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Rioja Aero. Thresholds

La Rioja Aero.: nights with a minimum temperature at or above 20 C (68 F) in 59 years, most in 1997 with 102.
La Rioja Aero.: nights with a minimum temperature at or below 0 C (32 F) in 58 years, most in 1960 with 18.
La Rioja Aero.: nights with a minimum temperature at or above 25 C (77 F) in 56 years, most in 2003 with 15.
La Rioja Aero.: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1969 with 193.
10 fixed thresholds have at least one qualifying day at La Rioja Aero..

Days at or above 30 C (86 F)

40 years with a qualifying day

Days per year at La Rioja Aero. with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 193 in 1969.

Days at or above 30 C (86 F) per year at La Rioja Aero.
Year	Days	Decade average
1957	167	157.5
1958	148	157.5
1962	169	163.3
1963	152	163.3
1964	148	163.3
1966	128	163.3
1967	183	163.3
1968	170	163.3
1969	193	163.3
1970	176	153.4
1971	177	153.4
1972	160	153.4
1973	154	153.4
1974	145	153.4
1975	143	153.4
1976	156	153.4
1977	146	153.4
1978	154	153.4
1979	123	153.4
1980	155	150.4
1981	143	150.4
1983	151	150.4
1984	130	150.4
1985	136	150.4
1986	150	150.4
1987	153	150.4
1988	167	150.4
1989	169	150.4
1990	150	154.7
1991	154	154.7
1992	129	154.7
1993	164	154.7
1994	167	154.7
1995	176	154.7
1996	163	154.7
1997	170	154.7
1998	133	154.7
1999	141	154.7
2000	138	149.5
2003	161	149.5

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

First to last qualifying date each year at La Rioja Aero.
Year	First date	Last date
1957	1957-01-01	1957-12-30
1958	1958-01-01	1958-12-29
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1966	1966-01-08	1966-12-30
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-02	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-30
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-28
1978	1978-01-03	1978-12-31
1979	1979-01-01	1979-12-30
1980	1980-01-01	1980-12-31
1981	1981-01-03	1981-12-31
1983	1983-01-01	1983-12-31
1984	1984-01-01	1984-12-31
1985	1985-01-01	1985-12-30
1986	1986-01-01	1986-12-31
1987	1987-01-01	1987-12-31
1988	1988-01-01	1988-12-31
1989	1989-01-01	1989-12-31
1990	1990-01-01	1990-12-31
1991	1991-01-01	1991-12-30
1992	1992-01-03	1992-12-30
1993	1993-01-02	1993-12-31
1994	1994-01-01	1994-12-31
1995	1995-01-01	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-02	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-01	1999-12-30
2000	2000-01-01	2000-12-31
2003	2003-01-03	2003-12-31

Every Fixed Threshold

Fixed thresholds at La Rioja Aero.
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	40	193	1969	161
35 C (95 F): Days	40	105	1969	91
40 C (104 F): Days	39	23	1967	20
45 C (113 F): Days	6	3	1971	1
90 F (32.2 C): Days	40	153	1969	131
100 F (37.8 C): Days	40	57	1969	45
110 F (43.3 C): Days	18	10	1971	7
0 C (32 F): Frost days (min	58	18	1960	18
20 C (68 F): Tropical nights (min	59	102	1997	102
25 C (77 F): Days with min	56	15	2003	17

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

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Data for La Rioja 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

La Rioja Aero. Threshold Days by Year (AR000087217)

Key Facts for La Rioja Aero. Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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