Manypeaks Threshold Days by Year (ASN00009582)

4 fixed thresholds counted per year at Manypeaks (ASN00009582): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Manypeaks Thresholds

Manypeaks: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1945 with 34.
Manypeaks: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1947 with 8.
Manypeaks: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1942 with 2.
Manypeaks: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1945 with 1.
4 fixed thresholds have at least one qualifying day at Manypeaks.

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

43 years with a qualifying day

Days per year at Manypeaks with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1945.

Days with 10 mm (0.39 in) or more of precipitation per year at Manypeaks
Year	Days	Decade average
1931	25	23
1936	17	23
1937	27	23
1938	21	23
1939	25	23
1940	12	22.4
1941	19	22.4
1942	31	22.4
1943	26	22.4
1944	14	22.4
1945	34	22.4
1946	20	22.4
1947	25	22.4
1948	21	22.4
1952	24	17.6
1953	13	17.6
1954	7	17.6
1955	28	17.6
1957	12	17.6
1958	22	17.6
1959	17	17.6
1960	24	20.9
1961	24	20.9
1962	18	20.9
1963	23	20.9
1964	20	20.9
1965	24	20.9
1966	22	20.9
1967	21	20.9
1968	20	20.9
1969	13	20.9
1970	16	22
1971	15	22
1975	18	22
1976	28	22
1978	34	22
1979	21	22
1980	15	16.2
1981	17	16.2
1982	13	16.2
1987	13	16.2
1988	19	16.2
1989	20	16.2

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

First to last qualifying date each year at Manypeaks
Year	First date	Last date
1931	1931-03-06	1931-12-16
1936	1936-04-15	1936-10-17
1937	1937-03-02	1937-10-08
1938	1938-01-18	1938-11-03
1939	1939-01-19	1939-11-13
1940	1940-05-06	1940-12-06
1941	1941-03-02	1941-11-14
1942	1942-03-12	1942-12-03
1943	1943-01-31	1943-12-14
1944	1944-05-16	1944-10-29
1945	1945-03-21	1945-11-14
1946	1946-05-28	1946-12-04
1947	1947-04-07	1947-12-19
1948	1948-03-30	1948-12-24
1952	1952-01-23	1952-12-18
1953	1953-02-02	1953-11-03
1954	1954-04-23	1954-11-11
1955	1955-02-06	1955-12-15
1957	1957-04-21	1957-09-05
1958	1958-01-27	1958-12-22
1959	1959-04-12	1959-12-31
1960	1960-01-01	1960-12-17
1961	1961-01-26	1961-12-15
1962	1962-02-17	1962-12-26
1963	1963-02-09	1963-11-01
1964	1964-01-30	1964-12-20
1965	1965-02-04	1965-12-15
1966	1966-04-08	1966-12-23
1967	1967-02-03	1967-10-08
1968	1968-01-27	1968-10-31
1969	1969-03-13	1969-12-04
1970	1970-02-05	1970-12-03
1971	1971-01-30	1971-10-25
1975	1975-04-02	1975-11-15
1976	1976-02-26	1976-11-27
1978	1978-01-02	1978-12-15
1979	1979-02-26	1979-11-14
1980	1980-01-10	1980-11-02
1981	1981-04-11	1981-11-26
1982	1982-01-21	1982-11-28
1987	1987-04-08	1987-11-30
1988	1988-01-13	1988-11-07
1989	1989-01-25	1989-09-28

Every Fixed Threshold

Fixed thresholds at Manypeaks
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	43	34	1945	20
25 mm (0.98 in): Days with 25 mm or more rain	39	8	1947	3
50 mm (1.97 in): Days with 50 mm or more rain	16	2	1942	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Manypeaks 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).

Manypeaks Threshold Days by Year (ASN00009582)

Key Facts for Manypeaks Thresholds

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

Every Fixed Threshold

Download the Data

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