Lois River Dam Threshold Days by Year

7 fixed thresholds counted per year at Lois River Dam (CA001044710): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lois River Dam Thresholds

Lois River Dam: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1953 with 76.
Lois River Dam: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1983 with 23.
Lois River Dam: days with 10 cm (3.9 in) or more of snowfall in 36 years, most in 1937 with 11.
Lois River Dam: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1983 with 8.
7 fixed thresholds have at least one qualifying day at Lois River Dam.

Days with 10 mm (0.39 in) or more of precipitation

47 years with a qualifying day

Days per year at Lois River Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 76 in 1953.

Days with 10 mm (0.39 in) or more of precipitation per year at Lois River Dam
Year	Days	Decade average
1932	53	53.5
1933	63	53.5
1934	55	53.5
1935	54	53.5
1936	47	53.5
1937	47	53.5
1938	41	53.5
1939	68	53.5
1940	55	52
1941	68	52
1942	49	52
1943	44	52
1944	57	52
1945	41	52
1946	47	52
1947	55	52
1948	65	52
1949	39	52
1950	60	56.9
1951	49	56.9
1952	45	56.9
1953	76	56.9
1954	63	56.9
1955	57	56.9
1956	55	56.9
1957	54	56.9
1958	63	56.9
1959	47	56.9
1960	49	57.7
1961	59	57.7
1965	55	57.7
1966	63	57.7
1967	58	57.7
1968	62	57.7
1970	40	52.6
1972	59	52.6
1973	56	52.6
1974	63	52.6
1975	63	52.6
1976	45	52.6
1977	48	52.6
1978	49	52.6
1979	50	52.6
1980	64	49
1981	35	49
1982	32	49
1983	65	49

For each year, a bar from the first to the last day at Lois River Dam meeting 10 mm (0.39 in).

First to last qualifying date each year at Lois River Dam
Year	First date	Last date
1932	1932-01-09	1932-12-22
1933	1933-01-06	1933-12-28
1934	1934-01-02	1934-12-31
1935	1935-01-01	1935-12-31
1936	1936-01-03	1936-12-25
1937	1937-02-01	1937-12-27
1938	1938-01-12	1938-12-31
1939	1939-01-01	1939-12-31
1940	1940-01-01	1940-12-28
1941	1941-01-03	1941-12-22
1942	1942-01-12	1942-12-30
1943	1943-01-18	1943-12-31
1944	1944-01-11	1944-12-31
1945	1945-01-04	1945-12-27
1946	1946-01-03	1946-12-09
1947	1947-01-09	1947-12-31
1948	1948-01-07	1948-12-28
1949	1949-02-03	1949-12-30
1950	1950-01-02	1950-12-29
1951	1951-01-01	1951-12-26
1952	1952-01-15	1952-12-29
1953	1953-01-02	1953-12-31
1954	1954-01-02	1954-12-30
1955	1955-01-07	1955-12-25
1956	1956-01-05	1956-12-19
1957	1957-01-30	1957-12-27
1958	1958-01-08	1958-12-29
1959	1959-01-04	1959-12-17
1960	1960-01-05	1960-12-31
1961	1961-01-04	1961-12-28
1965	1965-01-04	1965-12-30
1966	1966-01-02	1966-12-29
1967	1967-01-03	1967-12-24
1968	1968-01-08	1968-12-23
1970	1970-01-08	1970-12-19
1972	1972-01-08	1972-12-26
1973	1973-01-13	1973-12-23
1974	1974-01-12	1974-12-20
1975	1975-01-01	1975-12-29
1976	1976-01-03	1976-12-25
1977	1977-01-13	1977-12-15
1978	1978-01-07	1978-12-17
1979	1979-01-12	1979-12-30
1980	1980-01-09	1980-12-26
1981	1981-01-17	1981-12-23
1982	1982-01-16	1982-12-21
1983	1983-01-01	1983-12-30

Every Fixed Threshold

Fixed thresholds at Lois River Dam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	47	76	1953	65
25 mm (0.98 in): Days with 25 mm or more rain	47	23	1983	23
50 mm (1.97 in): Days with 50 mm or more rain	33	8	1983	8
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	36	11	1937	2
25 cm (9.8 in): Days with 25 cm or more snowfall	7	1	1935	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1935	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.

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Data for Lois River Dam 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).

Lois River Dam Threshold Days by Year

Key Facts for Lois River Dam Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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