Stephenville A Threshold Days by Year (CA008403800)

12 fixed thresholds counted per year at Stephenville A (CA008403800): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stephenville A Thresholds

Stephenville A: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1972 with 94.
Stephenville A: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1972 with 195.
Stephenville A: nights with a minimum temperature at or below -10 C (14 F) in 41 years, most in 1972 with 86.
Stephenville A: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1982 with 57.
12 fixed thresholds have at least one qualifying day at Stephenville A.

Nights at or below 0 C (32 F)

41 years with a qualifying day

Days per year at Stephenville A with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 195 in 1972.

Nights at or below 0 C (32 F) per year at Stephenville A
Year	Days	Decade average
1943	176	169.6
1944	168	169.6
1945	158	169.6
1946	152	169.6
1947	173	169.6
1948	185	169.6
1949	175	169.6
1950	165	150.9
1951	132	150.9
1952	157	150.9
1953	128	150.9
1954	146	150.9
1955	144	150.9
1956	156	150.9
1957	169	150.9
1958	146	150.9
1959	166	150.9
1960	157	159.2
1961	153	159.2
1962	149	159.2
1963	155	159.2
1964	177	159.2
1965	175	159.2
1966	129	159.2
1967	172	159.2
1968	168	159.2
1969	157	159.2
1970	166	170.3
1971	155	170.3
1972	195	170.3
1973	165	170.3
1974	191	170.3
1975	178	170.3
1976	171	170.3
1977	162	170.3
1978	185	170.3
1979	135	170.3
1980	150	150
1981	142	150
1982	170	150
1983	138	150

For each year, a bar from the first to the last day at Stephenville A meeting 0 C (32 F).

First to last qualifying date each year at Stephenville A
Year	First date	Last date
1943	1943-01-01	1943-12-31
1944	1944-01-01	1944-12-31
1945	1945-01-01	1945-12-31
1946	1946-01-01	1946-12-31
1947	1947-01-01	1947-12-31
1948	1948-01-01	1948-12-31
1949	1949-01-01	1949-12-31
1950	1950-01-01	1950-12-31
1951	1951-01-01	1951-12-31
1952	1952-01-01	1952-12-31
1953	1953-01-01	1953-12-31
1954	1954-01-01	1954-12-31
1955	1955-01-01	1955-12-31
1956	1956-01-01	1956-12-31
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-06	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-03	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1968	1968-01-01	1968-12-31
1969	1969-01-01	1969-12-31
1970	1970-01-01	1970-12-31
1971	1971-01-01	1971-12-31
1972	1972-01-01	1972-12-31
1973	1973-01-01	1973-12-31
1974	1974-01-01	1974-12-31
1975	1975-01-01	1975-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-01	1977-12-31
1978	1978-01-01	1978-12-31
1979	1979-01-01	1979-12-31
1980	1980-01-01	1980-12-31
1981	1981-01-01	1981-12-31
1982	1982-01-01	1982-12-31
1983	1983-01-01	1983-12-31

Every Fixed Threshold

Fixed thresholds at Stephenville A
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	2	1	1949	1
0 C (32 F): Ice days (max	41	94	1972	65
0 C (32 F): Frost days (min	41	195	1972	138
-10 C (14 F): Days with min	41	86	1972	39
-20 C (-4 F): Days with min	26	18	1961	4
20 C (68 F): Tropical nights (min	7	2	1967	1
10 mm (0.39 in): Days with 10 mm or more rain	40	57	1982	49
25 mm (0.98 in): Days with 25 mm or more rain	40	13	1982	9
50 mm (1.97 in): Days with 50 mm or more rain	19	4	1973	2
10 cm (3.9 in): Days with 10 cm or more snowfall	40	20	1982	5
25 cm (9.8 in): Days with 25 cm or more snowfall	17	5	1959	3
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1947	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 Stephenville A 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).

Stephenville A Threshold Days by Year (CA008403800)

Key Facts for Stephenville A Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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