Calera Threshold Days by Year

9 fixed thresholds counted per year at Calera (MXN00032003): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Calera Thresholds

Calera: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1983 with 87.
Calera: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 1976 with 25.
Calera: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1984 with 72.
Calera: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1970 with 7.
9 fixed thresholds have at least one qualifying day at Calera.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Calera with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 72 in 1984.

Days at or above 30 C (86 F) per year at Calera
Year	Days	Decade average
1958	9	9.5
1959	10	9.5
1960	22	29.4
1961	37	29.4
1962	42	29.4
1963	48	29.4
1964	32	29.4
1965	32	29.4
1966	21	29.4
1967	12	29.4
1968	12	29.4
1969	36	29.4
1970	28	17
1971	19	17
1973	36	17
1975	18	17
1976	5	17
1977	3	17
1978	10	17
1982	58	45
1983	45	45
1984	72	45
1985	28	45
1989	22	45
1990	12	18.1
1991	21	18.1
1992	12	18.1
1994	8	18.1
1996	17	18.1
1997	7	18.1
1998	51	18.1
1999	17	18.1
2000	18	12
2001	11	12
2003	15	12
2004	4	12
2005	17	12
2006	14	12
2007	5	12
2011	33	18.5
2012	4	18.5

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

First to last qualifying date each year at Calera
Year	First date	Last date
1958	1958-04-29	1958-06-12
1959	1959-04-27	1959-09-08
1960	1960-05-15	1960-07-31
1961	1961-03-12	1961-06-06
1962	1962-05-13	1962-08-03
1963	1963-04-10	1963-08-22
1964	1964-04-07	1964-08-28
1965	1965-04-11	1965-06-24
1966	1966-04-29	1966-10-08
1967	1967-04-23	1967-05-14
1968	1968-04-14	1968-06-13
1969	1969-05-16	1969-10-03
1970	1970-04-01	1970-06-17
1971	1971-04-24	1971-06-08
1973	1973-04-24	1973-06-19
1975	1975-04-16	1975-06-16
1976	1976-05-24	1976-06-12
1977	1977-03-15	1977-03-21
1978	1978-04-21	1978-06-03
1982	1982-04-01	1982-06-30
1983	1983-04-18	1983-06-29
1984	1984-04-01	1984-06-30
1985	1985-05-01	1985-07-31
1989	1989-05-17	1989-07-17
1990	1990-05-09	1990-08-02
1991	1991-03-05	1991-06-04
1992	1992-06-13	1992-07-01
1994	1994-04-29	1994-06-07
1996	1996-05-08	1996-06-21
1997	1997-06-05	1997-06-17
1998	1998-04-14	1998-08-06
1999	1999-04-06	1999-06-05
2000	2000-04-17	2000-05-25
2001	2001-04-04	2001-07-23
2003	2003-04-16	2003-05-19
2004	2004-05-25	2004-05-28
2005	2005-04-28	2005-06-17
2006	2006-04-10	2006-05-14
2007	2007-05-16	2007-06-06
2011	2011-03-24	2011-07-20
2012	2012-04-26	2012-06-01

Every Fixed Threshold

Fixed thresholds at Calera
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	72	1984	4
35 C (95 F): Days	5	3	1982	1
90 F (32.2 C): Days	23	22	1982	1
0 C (32 F): Frost days (min	42	87	1983	19
-10 C (14 F): Days with min	8	2	1962	1
10 mm (0.39 in): Days with 10 mm or more rain	42	25	1976	9
25 mm (0.98 in): Days with 25 mm or more rain	40	7	1970	1
50 mm (1.97 in): Days with 50 mm or more rain	7	3	1970	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1970	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

Data for Calera 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).

Calera Threshold Days by Year

Key Facts for Calera Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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