Grahamsville Threshold Days by Year (USC00303365)

6 fixed thresholds counted per year at Grahamsville (USC00303365): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grahamsville Thresholds

Grahamsville: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1996 with 57.
Grahamsville: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1952 with 17.
Grahamsville: days with 50 mm (1.97 in) or more of precipitation in 38 years, most in 1976 with 6.
Grahamsville: days with 10 cm (3.9 in) or more of snowfall in 8 years, most in 1966 with 8.
6 fixed thresholds have at least one qualifying day at Grahamsville.

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

48 years with a qualifying day

Days per year at Grahamsville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 57 in 1996.

Days with 10 mm (0.39 in) or more of precipitation per year at Grahamsville
Year	Days	Decade average
1949	35	35
1950	44	42.6
1951	51	42.6
1952	45	42.6
1953	45	42.6
1954	35	42.6
1955	38	42.6
1956	51	42.6
1957	31	42.6
1958	42	42.6
1959	44	42.6
1960	39	33
1961	31	33
1962	32	33
1963	31	33
1964	31	33
1965	31	33
1966	30	33
1967	40	33
1968	32	33
1969	33	33
1970	39	42.6
1971	37	42.6
1972	49	42.6
1973	48	42.6
1974	43	42.6
1975	48	42.6
1976	44	42.6
1977	42	42.6
1978	37	42.6
1979	39	42.6
1980	23	34.6
1981	34	34.6
1982	33	34.6
1983	41	34.6
1984	36	34.6
1985	36	34.6
1987	40	34.6
1988	31	34.6
1989	37	34.6
1991	31	41.2
1992	40	41.2
1993	46	41.2
1994	45	41.2
1995	28	41.2
1996	57	41.2
2001	25	34.5
2002	44	34.5

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

First to last qualifying date each year at Grahamsville
Year	First date	Last date
1949	1949-01-01	1949-12-27
1950	1950-01-06	1950-12-16
1951	1951-01-08	1951-12-26
1952	1952-01-03	1952-12-22
1953	1953-01-09	1953-12-14
1954	1954-01-06	1954-12-30
1955	1955-01-02	1955-11-17
1956	1956-02-02	1956-12-23
1957	1957-01-23	1957-12-27
1958	1958-01-01	1958-12-06
1959	1959-01-02	1959-12-29
1960	1960-01-03	1960-12-21
1961	1961-02-04	1961-11-17
1962	1962-01-07	1962-12-30
1963	1963-01-20	1963-12-24
1964	1964-01-02	1964-12-28
1965	1965-01-03	1965-12-26
1966	1966-01-03	1966-12-29
1967	1967-01-28	1967-12-29
1968	1968-01-15	1968-12-28
1969	1969-01-24	1969-12-26
1970	1970-02-03	1970-12-24
1971	1971-01-05	1971-12-31
1972	1972-01-02	1972-12-31
1973	1973-01-01	1973-12-27
1974	1974-01-11	1974-12-25
1975	1975-01-07	1975-12-31
1976	1976-01-08	1976-12-08
1977	1977-02-25	1977-12-25
1978	1978-01-09	1978-12-25
1979	1979-01-01	1979-12-25
1980	1980-02-16	1980-12-16
1981	1981-01-07	1981-12-23
1982	1982-01-04	1982-12-16
1983	1983-01-11	1983-11-29
1984	1984-02-04	1984-12-22
1985	1985-02-13	1985-12-14
1987	1987-01-03	1987-12-16
1988	1988-01-26	1988-12-25
1989	1989-01-13	1989-11-17
1991	1991-01-12	1991-12-30
1992	1992-01-24	1992-12-31
1993	1993-01-05	1993-12-21
1994	1994-01-08	1994-12-24
1995	1995-01-01	1995-12-16
1996	1996-01-02	1996-12-25
2001	2001-01-31	2001-12-18
2002	2002-01-07	2002-12-26

Every Fixed Threshold

Fixed thresholds at Grahamsville
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	48	57	1996	44
25 mm (0.98 in): Days with 25 mm or more rain	48	17	1952	10
50 mm (1.97 in): Days with 50 mm or more rain	38	6	1976	2
100 mm (3.94 in): Days with 100 mm or more rain	6	1	1950	1
10 cm (3.9 in): Days with 10 cm or more snowfall	8	8	1966	4
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1961	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 Grahamsville 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).

Grahamsville Threshold Days by Year (USC00303365)

Key Facts for Grahamsville Thresholds

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

Every Fixed Threshold

Download the Data

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