Blue Hill Lcd Threshold Days by Year (USW00014753)

17 fixed thresholds counted per year at Blue Hill Lcd (USW00014753): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blue Hill Lcd Thresholds

Blue Hill Lcd: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 2010 with 44.
Blue Hill Lcd: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 2002 with 23.
Blue Hill Lcd: days with a maximum temperature at or below 0 C (32 F) in 67 years, most in 1970 with 60.
Blue Hill Lcd: nights with a minimum temperature at or below 0 C (32 F) in 67 years, most in 1972 with 143.
17 fixed thresholds have at least one qualifying day at Blue Hill Lcd.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at Blue Hill Lcd with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 44 in 2010.

Days at or above 30 C (86 F) per year at Blue Hill Lcd
Year	Days	Decade average
1960	8	16.2
1961	19	16.2
1962	10	16.2
1963	18	16.2
1964	14	16.2
1965	28	16.2
1966	20	16.2
1967	10	16.2
1968	18	16.2
1969	17	16.2
1970	21	19.3
1971	25	19.3
1972	10	19.3
1973	21	19.3
1974	16	19.3
1975	17	19.3
1976	20	19.3
1977	23	19.3
1978	17	19.3
1979	23	19.3
1980	30	19.2
1981	15	19.2
1982	11	19.2
1983	38	19.2
1984	17	19.2
1985	6	19.2
1986	7	19.2
1987	19	19.2
1988	37	19.2
1989	12	19.2
1990	19	22.9
1991	35	22.9
1992	10	22.9
1993	28	22.9
1994	22	22.9
1995	27	22.9
1996	9	22.9
1997	25	22.9
1998	20	22.9
1999	34	22.9
2000	8	20.1
2001	23	20.1
2002	34	20.1
2003	14	20.1
2004	12	20.1
2005	32	20.1
2006	17	20.1
2007	30	20.1
2008	15	20.1
2009	16	20.1
2010	44	27.7
2011	20	27.7
2012	24	27.7
2013	21	27.7
2014	18	27.7
2015	30	27.7
2016	42	27.7
2017	21	27.7
2018	36	27.7
2019	21	27.7
2020	32	29.1
2021	29	29.1
2022	40	29.1
2023	20	29.1
2024	23	29.1
2025	29	29.1
2026	31	29.1

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

First to last qualifying date each year at Blue Hill Lcd
Year	First date	Last date
1960	1960-06-27	1960-09-08
1961	1961-05-15	1961-09-12
1962	1962-04-27	1962-08-06
1963	1963-05-09	1963-10-07
1964	1964-05-08	1964-08-30
1965	1965-05-10	1965-09-22
1966	1966-06-04	1966-09-02
1967	1967-06-10	1967-08-18
1968	1968-06-06	1968-08-25
1969	1969-06-13	1969-09-01
1970	1970-05-10	1970-09-25
1971	1971-06-07	1971-09-16
1972	1972-07-02	1972-08-26
1973	1973-06-08	1973-09-04
1974	1974-05-17	1974-08-28
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	1978-08-17
1979	1979-05-09	1979-08-05
1980	1980-05-22	1980-09-22
1981	1981-05-25	1981-09-14
1982	1982-07-07	1982-07-26
1983	1983-06-12	1983-09-20
1984	1984-06-07	1984-08-16
1985	1985-05-11	1985-09-04
1986	1986-05-18	1986-07-26
1987	1987-05-30	1987-08-19
1988	1988-06-12	1988-08-15
1989	1989-06-02	1989-09-10
1990	1990-04-27	1990-08-27
1991	1991-04-08	1991-09-17
1992	1992-05-21	1992-08-27
1993	1993-05-11	1993-09-15
1994	1994-06-17	1994-08-05
1995	1995-05-31	1995-09-01
1996	1996-05-20	1996-08-26
1997	1997-06-10	1997-08-17
1998	1998-03-28	1998-09-06
1999	1999-05-30	1999-09-04
2000	2000-05-07	2000-06-27
2001	2001-05-02	2001-08-10
2002	2002-04-17	2002-09-10
2003	2003-06-24	2003-08-22
2004	2004-05-11	2004-08-30
2005	2005-04-20	2005-09-12
2006	2006-06-01	2006-08-03
2007	2007-05-24	2007-10-05
2008	2008-06-07	2008-09-05
2009	2009-04-26	2009-08-23
2010	2010-04-07	2010-09-25
2011	2011-05-27	2011-08-02
2012	2012-04-16	2012-08-31
2013	2013-05-30	2013-09-11
2014	2014-06-25	2014-09-28
2015	2015-05-10	2015-09-18
2016	2016-05-25	2016-09-14
2017	2017-04-16	2017-09-27
2018	2018-05-02	2018-09-06
2019	2019-06-28	2019-09-23
2020	2020-06-04	2020-08-25
2021	2021-05-22	2021-08-27
2022	2022-05-21	2022-09-04
2023	2023-04-13	2023-09-09
2024	2024-05-22	2024-08-28
2025	2025-06-05	2025-08-17
2026	2026-05-17	2026-08-20

Every Fixed Threshold

Fixed thresholds at Blue Hill Lcd
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	44	2010	31
35 C (95 F): Days	32	9	2022	4
90 F (32.2 C): Days	67	23	2002	11
100 F (37.8 C): Days	2	1	1975	1
0 C (32 F): Ice days (max	67	60	1970	28
0 C (32 F): Frost days (min	67	143	1972	83
-10 C (14 F): Days with min	67	48	1989	25
-20 C (-4 F): Days with min	35	6	1979	2
20 C (68 F): Tropical nights (min	67	27	2018	14
25 C (77 F): Days with min	3	1	1975	1
10 mm (0.39 in): Days with 10 mm or more rain	67	56	2011	22
25 mm (0.98 in): Days with 25 mm or more rain	67	23	1975	7
50 mm (1.97 in): Days with 50 mm or more rain	62	9	1998	4
100 mm (3.94 in): Days with 100 mm or more rain	12	2	1996	1
10 cm (3.9 in): Days with 10 cm or more snowfall	65	14	1996	5
25 cm (9.8 in): Days with 25 cm or more snowfall	45	5	2015	2
50 cm (19.7 in): Days with 50 cm or more snowfall	7	1	1960	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1960.

Download the Data

Data for Blue Hill Lcd 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Blue Hill Lcd Threshold Days by Year (USW00014753)

Key Facts for Blue Hill Lcd Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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