Lybrook Threshold Days by Year

16 fixed thresholds counted per year at Lybrook (USC00295290): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lybrook Thresholds

Lybrook: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1994 with 18.
Lybrook: days with a maximum temperature at or above 30 C (86 F) in 38 years, most in 1952 with 47.
Lybrook: days with a maximum temperature at or below 0 C (32 F) in 38 years, most in 1988 with 37.
Lybrook: nights with a minimum temperature at or below 0 C (32 F) in 35 years, most in 1973 with 191.
16 fixed thresholds have at least one qualifying day at Lybrook.

Days at or above 30 C (86 F)

38 years with a qualifying day

Days per year at Lybrook with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 47 in 1952.

Days at or above 30 C (86 F) per year at Lybrook
Year	Days	Decade average
1952	47	34.1
1953	41	34.1
1954	30	34.1
1956	33	34.1
1957	13	34.1
1958	33	34.1
1959	42	34.1
1960	44	27.3
1961	32	27.3
1962	22	27.3
1963	32	27.3
1964	19	27.3
1965	16	27.3
1967	31	27.3
1968	22	27.3
1970	47	27.2
1971	31	27.2
1972	25	27.2
1973	19	27.2
1974	28	27.2
1975	13	27.2
1983	20	17.8
1987	9	17.8
1988	21	17.8
1989	21	17.8
1990	20	20.4
1991	7	20.4
1993	20	20.4
1994	34	20.4
1995	30	20.4
1996	31	20.4
1997	7	20.4
1998	28	20.4
1999	7	20.4
2001	20	32
2003	38	32
2006	30	32
2007	40	32

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

First to last qualifying date each year at Lybrook
Year	First date	Last date
1952	1952-06-06	1952-09-07
1953	1953-06-09	1953-08-26
1954	1954-06-17	1954-08-28
1956	1956-05-31	1956-09-14
1957	1957-06-25	1957-07-31
1958	1958-06-18	1958-09-03
1959	1959-06-11	1959-09-09
1960	1960-06-17	1960-09-05
1961	1961-06-10	1961-08-10
1962	1962-06-20	1962-08-16
1963	1963-06-23	1963-08-14
1964	1964-06-29	1964-08-10
1965	1965-06-29	1965-08-26
1967	1967-06-22	1967-09-04
1968	1968-06-18	1968-07-22
1970	1970-05-20	1970-08-30
1971	1971-06-14	1971-08-18
1972	1972-06-29	1972-08-11
1973	1973-06-09	1973-08-19
1974	1974-06-14	1974-09-09
1975	1975-06-27	1975-08-08
1983	1983-06-21	1983-09-06
1987	1987-06-23	1987-08-19
1988	1988-06-09	1988-08-15
1989	1989-06-17	1989-07-20
1990	1990-06-04	1990-09-13
1991	1991-06-25	1991-08-22
1993	1993-06-14	1993-08-03
1994	1994-06-11	1994-08-26
1995	1995-07-06	1995-09-05
1996	1996-06-05	1996-08-15
1997	1997-06-30	1997-07-25
1998	1998-06-25	1998-09-01
1999	1999-06-24	1999-07-05
2001	2001-06-07	2001-07-23
2003	2003-05-30	2003-08-10
2006	2006-06-03	2006-07-26
2007	2007-06-17	2007-08-26

Every Fixed Threshold

Fixed thresholds at Lybrook
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	38	47	1952	40
35 C (95 F): Days	10	4	1952	1
90 F (32.2 C): Days	31	23	1970	7
100 F (37.8 C): Days	1	1	1952	1
0 C (32 F): Ice days (max	38	37	1988	16
0 C (32 F): Frost days (min	35	191	1973	138
-10 C (14 F): Days with min	35	84	1964	45
-20 C (-4 F): Days with min	23	9	1990	2
-30 C (-22 F): Days with min	2	2	1971	2
20 C (68 F): Tropical nights (min	7	3	1975	3
10 mm (0.39 in): Days with 10 mm or more rain	41	18	1994	13
25 mm (0.98 in): Days with 25 mm or more rain	24	4	1967	4
50 mm (1.97 in): Days with 50 mm or more rain	2	3	2006	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	2006	1
10 cm (3.9 in): Days with 10 cm or more snowfall	31	7	1990	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1974	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

Data for Lybrook 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Lybrook Threshold Days by Year

Key Facts for Lybrook Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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