San Nicolas Threshold Days by Year (MXN00019107)

16 fixed thresholds counted per year at San Nicolas (MXN00019107): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Nicolas Thresholds

San Nicolas: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 1981 with 18.
San Nicolas: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 2002 with 11.
San Nicolas: nights with a minimum temperature at or above 20 C (68 F) in 15 years, most in 1990 with 167.
San Nicolas: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1985 with 4.
16 fixed thresholds have at least one qualifying day at San Nicolas.

Days at or above 30 C (86 F)

13 years with a qualifying day

Days per year at San Nicolas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 225 in 2011.

Days at or above 30 C (86 F) per year at San Nicolas
Year	Days	Decade average
1979	180	180
1981	174	178.2
1982	190	178.2
1983	173	178.2
1985	184	178.2
1987	170	178.2
1990	181	200
1991	219	200
2002	211	174.7
2004	141	174.7
2008	172	174.7
2010	172	198.5
2011	225	198.5

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

First to last qualifying date each year at San Nicolas
Year	First date	Last date
1979	1979-02-14	1979-11-27
1981	1981-03-28	1981-12-27
1982	1982-01-06	1982-11-19
1983	1983-02-19	1983-12-04
1985	1985-03-03	1985-11-14
1987	1987-04-10	1987-12-11
1990	1990-01-11	1990-12-21
1991	1991-01-29	1991-11-29
2002	2002-01-30	2002-12-17
2004	2004-03-08	2004-10-30
2008	2008-02-14	2008-10-22
2010	2010-03-09	2010-11-22
2011	2011-02-16	2011-11-25

Every Fixed Threshold

Fixed thresholds at San Nicolas
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	13	225	2011	225
35 C (95 F): Days	13	148	2002	143
40 C (104 F): Days	9	54	2002	40
45 C (113 F): Days	1	1	2002	1
90 F (32.2 C): Days	13	169	2002	155
100 F (37.8 C): Days	13	102	2011	102
110 F (43.3 C): Days	4	4	2002	1
0 C (32 F): Ice days (max	1	3	1983	3
0 C (32 F): Frost days (min	14	13	1985	6
-10 C (14 F): Days with min	1	1	1983	1
20 C (68 F): Tropical nights (min	15	167	1990	131
25 C (77 F): Days with min	11	60	1990	31
10 mm (0.39 in): Days with 10 mm or more rain	20	18	1981	8
25 mm (0.98 in): Days with 25 mm or more rain	19	11	2002	2
50 mm (1.97 in): Days with 50 mm or more rain	15	4	1985	4
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1987	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 Nicolas 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 Nicolas Threshold Days by Year (MXN00019107)

Key Facts for San Nicolas Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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