Cayey 1 E Threshold Days by Year (RQC00661901)

9 fixed thresholds counted per year at Cayey 1 E (RQC00661901): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cayey 1 E Thresholds

Cayey 1 E: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1958 with 60.
Cayey 1 E: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1970 with 24.
Cayey 1 E: days with 50 mm (1.97 in) or more of precipitation in 42 years, most in 1970 with 15.
Cayey 1 E: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1960 with 195.
9 fixed thresholds have at least one qualifying day at Cayey 1 E.

Days at or above 30 C (86 F)

38 years with a qualifying day

Days per year at Cayey 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 195 in 1960.

Days at or above 30 C (86 F) per year at Cayey 1 E
Year	Days	Decade average
1955	93	128
1956	91	128
1957	129	128
1958	163	128
1959	164	128
1960	195	85.3
1961	156	85.3
1965	47	85.3
1966	64	85.3
1968	19	85.3
1969	31	85.3
1970	10	36.2
1971	27	36.2
1972	41	36.2
1973	42	36.2
1974	72	36.2
1975	40	36.2
1976	38	36.2
1977	41	36.2
1979	15	36.2
1980	63	38.5
1981	41	38.5
1982	23	38.5
1983	72	38.5
1984	33	38.5
1986	13	38.5
1987	50	38.5
1988	13	38.5
1990	68	49
1991	45	49
1992	10	49
1993	9	49
1994	42	49
1995	41	49
1996	17	49
1997	101	49
1998	102	49
1999	55	49

For each year, a bar from the first to the last day at Cayey 1 E meeting 30 C (86 F).

First to last qualifying date each year at Cayey 1 E
Year	First date	Last date
1955	1955-04-08	1955-12-30
1956	1956-02-27	1956-11-15
1957	1957-03-25	1957-11-08
1958	1958-01-02	1958-11-11
1959	1959-02-16	1959-12-24
1960	1960-01-12	1960-12-03
1961	1961-01-31	1961-10-27
1965	1965-02-21	1965-11-22
1966	1966-04-02	1966-11-20
1968	1968-02-14	1968-11-11
1969	1969-04-14	1969-10-17
1970	1970-04-15	1970-10-03
1971	1971-08-02	1971-10-17
1972	1972-06-10	1972-10-27
1973	1973-04-14	1973-09-23
1974	1974-05-19	1974-10-11
1975	1975-05-08	1975-11-01
1976	1976-05-19	1976-11-06
1977	1977-04-17	1977-11-11
1979	1979-06-15	1979-10-31
1980	1980-03-02	1980-10-22
1981	1981-05-06	1981-11-26
1982	1982-05-03	1982-10-15
1983	1983-01-03	1983-11-19
1984	1984-04-01	1984-09-28
1986	1986-07-24	1986-10-08
1987	1987-06-02	1987-11-12
1988	1988-06-06	1988-10-01
1990	1990-05-07	1990-10-03
1991	1991-05-01	1991-10-23
1992	1992-07-04	1992-10-13
1993	1993-06-08	1993-09-21
1994	1994-05-24	1994-10-07
1995	1995-05-04	1995-10-26
1996	1996-05-16	1996-10-23
1997	1997-05-06	1997-11-16
1998	1998-05-03	1998-11-04
1999	1999-04-16	1999-10-17

Every Fixed Threshold

Fixed thresholds at Cayey 1 E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	38	195	1960	55
90 F (32.2 C): Days	12	24	1959	2
20 C (68 F): Tropical nights (min	38	180	1998	128
25 C (77 F): Days with min	2	1	1957	1
10 mm (0.39 in): Days with 10 mm or more rain	44	60	1958	39
25 mm (0.98 in): Days with 25 mm or more rain	44	24	1970	17
50 mm (1.97 in): Days with 50 mm or more rain	42	15	1970	5
100 mm (3.94 in): Days with 100 mm or more rain	24	5	1970	2
200 mm (7.87 in): Days with 200 mm or more rain	6	2	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 1955.

Download the Data

Data for Cayey 1 E 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).

Cayey 1 E Threshold Days by Year (RQC00661901)

Key Facts for Cayey 1 E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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