Nashua Threshold Days by Year (USC00275702)

17 fixed thresholds counted per year at Nashua (USC00275702): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nashua Thresholds

Nashua: days with a maximum temperature at or above 30 C (86 F) in 45 years, most in 1983 with 52.
Nashua: days with a maximum temperature at or above 90 F (32.2 C) in 45 years, most in 1955 with 35.
Nashua: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 1970 with 55.
Nashua: nights with a minimum temperature at or below 0 C (32 F) in 44 years, most in 1956 with 188.
17 fixed thresholds have at least one qualifying day at Nashua.

Days at or above 30 C (86 F)

45 years with a qualifying day

Days per year at Nashua with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 52 in 1983.

Days at or above 30 C (86 F) per year at Nashua
Year	Days	Decade average
1950	34	32.9
1951	26	32.9
1952	41	32.9
1953	38	32.9
1954	18	32.9
1955	45	32.9
1956	26	32.9
1957	35	32.9
1958	21	32.9
1959	45	32.9
1960	20	26.7
1961	34	26.7
1962	13	26.7
1963	27	26.7
1964	24	26.7
1965	31	26.7
1966	39	26.7
1967	22	26.7
1968	27	26.7
1969	30	26.7
1970	32	26.1
1971	29	26.1
1972	16	26.1
1973	33	26.1
1974	23	26.1
1975	24	26.1
1976	31	26.1
1977	26	26.1
1978	23	26.1
1979	24	26.1
1980	33	25.4
1981	17	25.4
1982	10	25.4
1983	52	25.4
1984	30	25.4
1985	16	25.4
1986	14	25.4
1987	23	25.4
1988	40	25.4
1989	19	25.4
1990	19	25.6
1991	35	25.6
1992	11	25.6
1993	37	25.6
1994	26	25.6

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

First to last qualifying date each year at Nashua
Year	First date	Last date
1950	1950-06-07	1950-10-03
1951	1951-05-16	1951-09-13
1952	1952-06-16	1952-09-14
1953	1953-05-10	1953-09-05
1954	1954-04-20	1954-10-12
1955	1955-05-04	1955-09-18
1956	1956-05-31	1956-09-05
1957	1957-05-09	1957-09-16
1958	1958-06-01	1958-09-26
1959	1959-05-12	1959-09-24
1960	1960-06-05	1960-09-08
1961	1961-05-14	1961-09-14
1962	1962-04-27	1962-08-08
1963	1963-06-05	1963-10-07
1964	1964-05-07	1964-09-11
1965	1965-05-09	1965-09-23
1966	1966-06-04	1966-09-02
1967	1967-06-02	1967-08-18
1968	1968-06-06	1968-09-25
1969	1969-04-28	1969-09-01
1970	1970-05-01	1970-09-25
1971	1971-06-07	1971-09-09
1972	1972-05-23	1972-08-26
1973	1973-04-22	1973-09-04
1974	1974-06-05	1974-08-24
1975	1975-05-20	1975-08-11
1976	1976-04-17	1976-08-22
1977	1977-05-17	1977-09-02
1978	1978-05-20	1978-08-23
1979	1979-05-09	1979-08-05
1980	1980-05-22	1980-09-22
1981	1981-05-25	1981-08-23
1982	1982-07-07	1982-09-12
1983	1983-06-12	1983-09-20
1984	1984-05-23	1984-09-24
1985	1985-05-11	1985-09-21
1986	1986-05-18	1986-07-26
1987	1987-05-29	1987-08-19
1988	1988-05-28	1988-08-15
1989	1989-05-20	1989-09-10
1990	1990-04-27	1990-09-02
1991	1991-05-12	1991-09-16
1992	1992-05-21	1992-08-27
1993	1993-05-09	1993-09-15
1994	1994-04-28	1994-08-05

Every Fixed Threshold

Fixed thresholds at Nashua
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	45	52	1983	26
35 C (95 F): Days	25	8	1955	2
90 F (32.2 C): Days	45	35	1955	8
100 F (37.8 C): Days	3	2	1955	1
0 C (32 F): Ice days (max	45	55	1970	47
0 C (32 F): Frost days (min	44	188	1956	149
-10 C (14 F): Days with min	44	71	1968	56
-20 C (-4 F): Days with min	42	19	1961	12
-30 C (-22 F): Days with min	8	2	1957	1
20 C (68 F): Tropical nights (min	37	20	1988	9
10 mm (0.39 in): Days with 10 mm or more rain	44	53	1983	35
25 mm (0.98 in): Days with 25 mm or more rain	44	19	1979	10
50 mm (1.97 in): Days with 50 mm or more rain	32	5	1990	1
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1954	1
10 cm (3.9 in): Days with 10 cm or more snowfall	26	9	1958	1
25 cm (9.8 in): Days with 25 cm or more snowfall	10	3	1967	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1958	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Nashua 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).

Nashua Threshold Days by Year (USC00275702)

Key Facts for Nashua Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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