Ola 4 S Threshold Days by Year

15 fixed thresholds counted per year at Ola 4 S (USC00106590): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ola 4 S Thresholds

Ola 4 S: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1967 with 96.
Ola 4 S: days with a maximum temperature at or above 35 C (95 F) in 35 years, most in 1961 with 44.
Ola 4 S: days with a maximum temperature at or above 90 F (32.2 C) in 35 years, most in 1967 with 75.
Ola 4 S: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1985 with 79.
15 fixed thresholds have at least one qualifying day at Ola 4 S.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at Ola 4 S with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 96 in 1967.

Days at or above 30 C (86 F) per year at Ola 4 S
Year	Days	Decade average
1952	87	71.3
1953	71	71.3
1954	61	71.3
1955	73	71.3
1956	67	71.3
1957	72	71.3
1958	86	71.3
1959	53	71.3
1960	71	74.8
1961	83	74.8
1962	66	74.8
1965	51	74.8
1966	90	74.8
1967	96	74.8
1968	59	74.8
1969	82	74.8
1970	81	71.6
1971	61	71.6
1972	75	71.6
1973	85	71.6
1974	82	71.6
1975	62	71.6
1976	54	71.6
1977	79	71.6
1978	53	71.6
1979	84	71.6
1980	49	66.9
1981	78	66.9
1982	60	66.9
1983	55	66.9
1984	72	66.9
1985	63	66.9
1986	75	66.9
1987	74	66.9
1988	76	66.9

For each year, a bar from the first to the last day at Ola 4 S meeting 30 C (86 F).

First to last qualifying date each year at Ola 4 S
Year	First date	Last date
1952	1952-05-12	1952-10-08
1953	1953-06-11	1953-09-21
1954	1954-05-15	1954-09-26
1955	1955-06-07	1955-09-13
1956	1956-04-22	1956-09-26
1957	1957-06-04	1957-09-30
1958	1958-05-18	1958-09-11
1959	1959-05-13	1959-09-13
1960	1960-06-02	1960-09-28
1961	1961-05-24	1961-09-16
1962	1962-06-19	1962-09-27
1965	1965-06-08	1965-09-03
1966	1966-05-02	1966-09-24
1967	1967-05-21	1967-09-30
1968	1968-06-02	1968-09-12
1969	1969-05-07	1969-09-27
1970	1970-05-16	1970-09-03
1971	1971-05-26	1971-09-12
1972	1972-05-14	1972-09-05
1973	1973-05-13	1973-09-14
1974	1974-06-10	1974-09-25
1975	1975-05-15	1975-09-14
1976	1976-05-13	1976-09-11
1977	1977-04-23	1977-09-13
1978	1978-06-05	1978-09-26
1979	1979-05-15	1979-10-08
1980	1980-05-21	1980-09-10
1981	1981-06-05	1981-09-19
1982	1982-05-25	1982-09-09
1983	1983-05-24	1983-09-13
1984	1984-05-29	1984-09-19
1985	1985-05-01	1985-08-31
1986	1986-05-26	1986-09-08
1987	1987-04-26	1987-09-25
1988	1988-05-12	1988-09-07

Every Fixed Threshold

Fixed thresholds at Ola 4 S
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	96	1967	76
35 C (95 F): Days	35	44	1961	31
40 C (104 F): Days	3	3	1961	3
90 F (32.2 C): Days	35	75	1967	58
100 F (37.8 C): Days	27	12	1961	4
0 C (32 F): Ice days (max	35	79	1985	27
0 C (32 F): Frost days (min	35	196	1976	133
-10 C (14 F): Days with min	35	71	1985	25
-20 C (-4 F): Days with min	29	26	1985	6
-30 C (-22 F): Days with min	7	4	1957	1
20 C (68 F): Tropical nights (min	13	6	1984	1
10 mm (0.39 in): Days with 10 mm or more rain	35	31	1982	14
25 mm (0.98 in): Days with 25 mm or more rain	19	4	1956	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	6	1971	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1976	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

Data for Ola 4 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ola 4 S Threshold Days by Year

Key Facts for Ola 4 S Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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