Cypress River Threshold Days by Year

17 fixed thresholds counted per year at Cypress River (CA005010640): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cypress River Thresholds

Cypress River: days with a maximum temperature at or above 30 C (86 F) in 35 years, most in 1961 with 40.
Cypress River: days with a maximum temperature at or below 0 C (32 F) in 35 years, most in 1950 with 142.
Cypress River: days with a maximum temperature at or above 90 F (32.2 C) in 34 years, most in 1961 with 25.
Cypress River: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1966 with 229.
17 fixed thresholds have at least one qualifying day at Cypress River.

Days at or above 30 C (86 F)

35 years with a qualifying day

Days per year at Cypress River with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1961.

Days at or above 30 C (86 F) per year at Cypress River
Year	Days	Decade average
1949	32	32
1950	14	14
1951	13	14
1952	22	14
1953	16	14
1954	6	14
1955	22	14
1956	7	14
1957	12	14
1958	9	14
1959	19	14
1960	18	16.2
1961	40	16.2
1962	4	16.2
1963	18	16.2
1964	14	16.2
1965	8	16.2
1966	21	16.2
1967	21	16.2
1968	5	16.2
1969	13	16.2
1970	20	16.5
1971	10	16.5
1972	19	16.5
1973	11	16.5
1974	16	16.5
1975	15	16.5
1976	20	16.5
1977	14	16.5
1978	24	16.5
1979	16	16.5
1980	32	22.8
1981	14	22.8
1982	9	22.8
1983	36	22.8

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

First to last qualifying date each year at Cypress River
Year	First date	Last date
1949	1949-04-29	1949-08-26
1950	1950-06-04	1950-09-25
1951	1951-05-24	1951-08-01
1952	1952-04-26	1952-09-27
1953	1953-05-06	1953-08-31
1954	1954-06-23	1954-08-31
1955	1955-05-20	1955-09-05
1956	1956-06-03	1956-08-04
1957	1957-07-10	1957-08-10
1958	1958-05-12	1958-08-16
1959	1959-06-05	1959-08-24
1960	1960-05-13	1960-09-20
1961	1961-05-21	1961-08-31
1962	1962-06-27	1962-08-22
1963	1963-05-30	1963-10-04
1964	1964-05-20	1964-08-05
1965	1965-05-13	1965-08-23
1966	1966-05-21	1966-08-30
1967	1967-06-29	1967-09-06
1968	1968-06-03	1968-09-14
1969	1969-05-26	1969-08-25
1970	1970-05-17	1970-09-05
1971	1971-06-03	1971-09-02
1972	1972-05-15	1972-08-30
1973	1973-06-02	1973-08-31
1974	1974-06-19	1974-08-07
1975	1975-06-20	1975-07-30
1976	1976-06-02	1976-09-30
1977	1977-05-09	1977-07-22
1978	1978-05-23	1978-09-10
1979	1979-06-12	1979-09-16
1980	1980-04-18	1980-09-07
1981	1981-05-21	1981-09-10
1982	1982-07-03	1982-09-10
1983	1983-06-10	1983-09-02

Every Fixed Threshold

Fixed thresholds at Cypress River
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	35	40	1961	36
35 C (95 F): Days	22	10	1961	7
90 F (32.2 C): Days	34	25	1961	18
100 F (37.8 C): Days	4	3	1949	1
0 C (32 F): Ice days (max	35	142	1950	118
0 C (32 F): Frost days (min	33	229	1966	204
-10 C (14 F): Days with min	33	136	1950	95
-20 C (-4 F): Days with min	33	96	1950	42
-30 C (-22 F): Days with min	33	33	1950	11
-40 C (-40 F): Days with min	7	6	1966	1
20 C (68 F): Tropical nights (min	23	5	1969	5
10 mm (0.39 in): Days with 10 mm or more rain	31	23	1970	9
25 mm (0.98 in): Days with 25 mm or more rain	30	7	1977	1
50 mm (1.97 in): Days with 50 mm or more rain	13	2	1968	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1962	1
10 cm (3.9 in): Days with 10 cm or more snowfall	24	7	1966	2
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1964	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

Data for Cypress River 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Cypress River Threshold Days by Year

Key Facts for Cypress River Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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