Rumford 1 SSE Threshold Days by Year (USC00177325)

17 fixed thresholds counted per year at Rumford 1 SSE (USC00177325): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rumford 1 SSE Thresholds

Rumford 1 SSE: days with 10 cm (3.9 in) or more of snowfall in 57 years, most in 1972 with 16.
Rumford 1 SSE: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 2005 with 53.
Rumford 1 SSE: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 2007 with 19.
Rumford 1 SSE: days with a maximum temperature at or above 30 C (86 F) in 55 years, most in 1988 with 33.
17 fixed thresholds have at least one qualifying day at Rumford 1 SSE.

Days at or above 30 C (86 F)

55 years with a qualifying day

Days per year at Rumford 1 SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 33 in 1988.

Days at or above 30 C (86 F) per year at Rumford 1 SSE
Year	Days	Decade average
1949	28	28
1950	5	11
1951	9	11
1952	22	11
1953	14	11
1954	2	11
1955	27	11
1956	5	11
1957	7	11
1958	3	11
1959	16	11
1960	6	11.7
1961	9	11.7
1963	18	11.7
1964	13	11.7
1965	14	11.7
1966	12	11.7
1967	11	11.7
1968	10	11.7
1969	12	11.7
1970	24	17.4
1971	14	17.4
1972	10	17.4
1973	20	17.4
1974	10	17.4
1975	22	17.4
1976	13	17.4
1977	20	17.4
1978	21	17.4
1979	20	17.4
1980	20	14.7
1981	8	14.7
1982	12	14.7
1983	15	14.7
1984	14	14.7
1985	9	14.7
1986	6	14.7
1987	15	14.7
1988	33	14.7
1989	15	14.7
1990	14	15.4
1991	19	15.4
1992	6	15.4
1993	18	15.4
1994	15	15.4
1996	8	15.4
1997	11	15.4
1998	17	15.4
1999	31	15.4
2003	9	10.8
2004	3	10.8
2005	11	10.8
2006	9	10.8
2007	23	10.8
2008	10	10.8

For each year, a bar from the first to the last day at Rumford 1 SSE meeting 30 C (86 F).

First to last qualifying date each year at Rumford 1 SSE
Year	First date	Last date
1949	1949-06-03	1949-08-27
1950	1950-06-09	1950-08-18
1951	1951-05-16	1951-08-10
1952	1952-06-25	1952-08-29
1953	1953-05-10	1953-09-04
1954	1954-06-21	1954-06-22
1955	1955-05-22	1955-09-19
1956	1956-06-12	1956-08-17
1957	1957-06-15	1957-06-24
1958	1958-07-24	1958-08-31
1959	1959-05-27	1959-09-08
1960	1960-06-17	1960-09-09
1961	1961-05-14	1961-09-11
1963	1963-06-02	1963-10-07
1964	1964-05-07	1964-08-30
1965	1965-06-20	1965-09-23
1966	1966-05-24	1966-08-07
1967	1967-06-03	1967-08-28
1968	1968-07-01	1968-08-25
1969	1969-05-17	1969-08-31
1970	1970-06-02	1970-09-22
1971	1971-06-07	1971-09-08
1972	1972-05-23	1972-08-24
1973	1973-06-11	1973-09-03
1974	1974-05-15	1974-08-22
1975	1975-05-20	1975-08-14
1976	1976-04-18	1976-09-14
1977	1977-04-21	1977-08-29
1978	1978-05-28	1978-09-21
1979	1979-05-09	1979-09-03
1980	1980-06-24	1980-09-02
1981	1981-06-16	1981-08-22
1982	1982-05-26	1982-07-19
1983	1983-06-12	1983-09-06
1984	1984-06-08	1984-08-08
1985	1985-07-01	1985-09-20
1986	1986-05-18	1986-07-26
1987	1987-05-30	1987-08-19
1988	1988-05-28	1988-08-15
1989	1989-05-18	1989-09-10
1990	1990-04-27	1990-08-27
1991	1991-05-16	1991-08-30
1992	1992-05-21	1992-09-18
1993	1993-05-09	1993-09-15
1994	1994-05-21	1994-08-04
1996	1996-06-01	1996-09-06
1997	1997-06-09	1997-08-16
1998	1998-05-20	1998-08-28
1999	1999-05-30	1999-09-04
2003	2003-05-20	2003-08-23
2004	2004-05-16	2004-08-29
2005	2005-06-05	2005-08-11
2006	2006-05-30	2006-08-03
2007	2007-05-10	2007-09-27
2008	2008-06-08	2008-08-24

Every Fixed Threshold

Fixed thresholds at Rumford 1 SSE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	55	33	1988	10
35 C (95 F): Days	15	3	1952	1
90 F (32.2 C): Days	49	15	1988	4
100 F (37.8 C): Days	1	1	1975	1
0 C (32 F): Ice days (max	55	96	1955	58
0 C (32 F): Frost days (min	53	213	1956	163
-10 C (14 F): Days with min	53	94	1978	69
-20 C (-4 F): Days with min	52	35	2003	20
-30 C (-22 F): Days with min	13	6	1957	2
20 C (68 F): Tropical nights (min	27	6	1979	1
10 mm (0.39 in): Days with 10 mm or more rain	56	53	2005	49
25 mm (0.98 in): Days with 25 mm or more rain	56	19	2007	15
50 mm (1.97 in): Days with 50 mm or more rain	47	5	1973	3
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1960	1
10 cm (3.9 in): Days with 10 cm or more snowfall	57	16	1972	8
25 cm (9.8 in): Days with 25 cm or more snowfall	37	6	1969	3
50 cm (19.7 in): Days with 50 cm or more snowfall	6	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 Rumford 1 SSE 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).

Rumford 1 SSE Threshold Days by Year (USC00177325)

Key Facts for Rumford 1 SSE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related