San Andres (Isla)/S Threshold Days by Year (CO000080001)

9 fixed thresholds counted per year at San Andres (Isla)/S (CO000080001): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Andres (Isla)/S Thresholds

San Andres (Isla)/S: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1981 with 80.
San Andres (Isla)/S: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1981 with 35.
San Andres (Isla)/S: days with 50 mm (1.97 in) or more of precipitation in 39 years, most in 1962 with 12.
San Andres (Isla)/S: days with 100 mm (3.94 in) or more of precipitation in 29 years, most in 1963 with 3.
9 fixed thresholds have at least one qualifying day at San Andres (Isla)/S.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at San Andres (Isla)/S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 237 in 1998.

Days at or above 30 C (86 F) per year at San Andres (Isla)/S
Year	Days	Decade average
1979	112	112
1981	113	89.3
1982	56	89.3
1983	110	89.3
1986	32	89.3
1987	118	89.3
1989	107	89.3
1990	101	162.7
1994	88	162.7
1995	202	162.7
1996	161	162.7
1997	204	162.7
1998	237	162.7
1999	146	162.7

For each year, a bar from the first to the last day at San Andres (Isla)/S meeting 30 C (86 F).

First to last qualifying date each year at San Andres (Isla)/S
Year	First date	Last date
1979	1979-03-26	1979-12-07
1981	1981-03-07	1981-12-29
1982	1982-01-04	1982-10-04
1983	1983-02-26	1983-11-28
1986	1986-04-14	1986-10-25
1987	1987-03-23	1987-12-30
1989	1989-04-29	1989-12-14
1990	1990-03-30	1990-12-21
1994	1994-03-19	1994-12-02
1995	1995-04-01	1995-12-31
1996	1996-01-01	1996-11-25
1997	1997-01-10	1997-12-29
1998	1998-01-05	1998-12-14
1999	1999-02-18	1999-11-14

Every Fixed Threshold

Fixed thresholds at San Andres (Isla)/S
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	237	1998	146
90 F (32.2 C): Days	6	21	1998	1
20 C (68 F): Tropical nights (min	17	365	1997	87
25 C (77 F): Days with min	17	326	1998	71
10 mm (0.39 in): Days with 10 mm or more rain	39	80	1981	12
25 mm (0.98 in): Days with 25 mm or more rain	39	35	1981	7
50 mm (1.97 in): Days with 50 mm or more rain	39	12	1962	2
100 mm (3.94 in): Days with 100 mm or more rain	29	3	1963	1
200 mm (7.87 in): Days with 200 mm or more rain	4	1	1972	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

Data for San Andres (Isla)/S 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).

San Andres (Isla)/S Threshold Days by Year (CO000080001)

Key Facts for San Andres (Isla)/S Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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