Newhalem Threshold Days by Year (USC00455840)

18 fixed thresholds counted per year at Newhalem (USC00455840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Newhalem Thresholds

Newhalem: days with a maximum temperature at or above 30 C (86 F) in 66 years, most in 2018 with 39.
Newhalem: days with a maximum temperature at or above 90 F (32.2 C) in 66 years, most in 2015 with 29.
Newhalem: days with 10 mm (0.39 in) or more of precipitation in 66 years, most in 1990 with 87.
Newhalem: days with 25 mm (0.98 in) or more of precipitation in 66 years, most in 1961 with 39.
18 fixed thresholds have at least one qualifying day at Newhalem.

Days at or above 30 C (86 F)

66 years with a qualifying day

Days per year at Newhalem with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 39 in 2018.

Days at or above 30 C (86 F) per year at Newhalem
Year	Days	Decade average
1959	16	16
1960	17	18.4
1961	32	18.4
1962	12	18.4
1963	17	18.4
1964	9	18.4
1965	18	18.4
1966	11	18.4
1967	33	18.4
1968	18	18.4
1969	17	18.4
1970	15	16.9
1971	21	16.9
1972	17	16.9
1973	24	16.9
1974	25	16.9
1975	14	16.9
1976	4	16.9
1977	22	16.9
1978	16	16.9
1979	11	16.9
1980	6	13.6
1981	17	13.6
1982	13	13.6
1983	6	13.6
1984	12	13.6
1985	27	13.6
1986	19	13.6
1989	9	13.6
1990	19	16.7
1991	13	16.7
1992	21	16.7
1993	12	16.7
1994	11	16.7
1995	15	16.7
1996	25	16.7
1997	15	16.7
1998	23	16.7
1999	13	16.7
2000	10	20.6
2001	12	20.6
2002	16	20.6
2003	33	20.6
2004	28	20.6
2005	24	20.6
2006	28	20.6
2007	15	20.6
2008	17	20.6
2009	23	20.6
2010	17	24.3
2011	11	24.3
2012	21	24.3
2013	21	24.3
2014	27	24.3
2015	35	24.3
2016	22	24.3
2017	33	24.3
2018	39	24.3
2019	17	24.3
2020	19	30.6
2021	33	30.6
2022	33	30.6
2023	37	30.6
2024	35	30.6
2025	31	30.6
2026	26	30.6

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

First to last qualifying date each year at Newhalem
Year	First date	Last date
1959	1959-05-14	1959-08-01
1960	1960-07-06	1960-09-12
1961	1961-05-20	1961-08-25
1962	1962-06-24	1962-09-05
1963	1963-05-19	1963-09-10
1964	1964-07-08	1964-08-25
1965	1965-07-01	1965-08-19
1966	1966-05-05	1966-09-23
1967	1967-05-21	1967-09-17
1968	1968-05-19	1968-08-11
1969	1969-05-09	1969-09-09
1970	1970-06-02	1970-08-24
1971	1971-05-12	1971-08-20
1972	1972-05-29	1972-09-04
1973	1973-05-14	1973-09-17
1974	1974-06-14	1974-09-25
1975	1975-06-01	1975-09-14
1976	1976-06-19	1976-07-17
1977	1977-04-25	1977-08-21
1978	1978-06-02	1978-08-10
1979	1979-05-23	1979-08-10
1980	1980-05-05	1980-08-11
1981	1981-07-04	1981-09-17
1982	1982-06-12	1982-08-25
1983	1983-05-25	1983-07-31
1984	1984-06-24	1984-08-23
1985	1985-05-18	1985-08-26
1986	1986-05-30	1986-09-06
1989	1989-06-04	1989-08-07
1990	1990-06-22	1990-08-13
1991	1991-07-03	1991-08-22
1992	1992-05-05	1992-08-18
1993	1993-05-13	1993-09-11
1994	1994-07-13	1994-08-12
1995	1995-05-30	1995-09-15
1996	1996-07-08	1996-08-30
1997	1997-05-13	1997-09-10
1998	1998-05-01	1998-09-07
1999	1999-05-24	1999-08-28
2000	2000-06-05	2000-08-25
2001	2001-05-23	2001-08-16
2002	2002-06-13	2002-08-29
2003	2003-06-05	2003-09-29
2004	2004-06-04	2004-08-20
2005	2005-05-27	2005-08-28
2006	2006-05-16	2006-09-04
2007	2007-05-31	2007-09-14
2008	2008-05-17	2008-08-18
2009	2009-06-02	2009-08-28
2010	2010-07-07	2010-08-26
2011	2011-07-25	2011-09-12
2012	2012-05-15	2012-09-18
2013	2013-05-06	2013-09-13
2014	2014-05-15	2014-09-10
2015	2015-06-07	2015-08-20
2016	2016-04-20	2016-08-28
2017	2017-05-22	2017-09-05
2018	2018-05-14	2018-09-07
2019	2019-05-11	2019-09-07
2020	2020-05-29	2020-09-11
2021	2021-06-02	2021-09-08
2022	2022-06-26	2022-09-11
2023	2023-05-13	2023-09-16
2024	2024-05-11	2024-09-08
2025	2025-05-29	2025-09-17
2026	2026-05-04	2026-08-26

Every Fixed Threshold

Fixed thresholds at Newhalem
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	66	39	2018	26
35 C (95 F): Days	52	12	2015	3
40 C (104 F): Days	3	4	2021	4
45 C (113 F): Days	1	1	2021	1
90 F (32.2 C): Days	66	29	2015	11
100 F (37.8 C): Days	24	5	2021	1
110 F (43.3 C): Days	1	2	2021	2
0 C (32 F): Ice days (max	61	19	1972	4
0 C (32 F): Frost days (min	64	94	1982	22
-10 C (14 F): Days with min	29	7	1996	2
20 C (68 F): Tropical nights (min	6	4	2021	1
10 mm (0.39 in): Days with 10 mm or more rain	66	87	1990	34
25 mm (0.98 in): Days with 25 mm or more rain	66	39	1961	14
50 mm (1.97 in): Days with 50 mm or more rain	66	11	2015	3
100 mm (3.94 in): Days with 100 mm or more rain	12	3	2003	1
10 cm (3.9 in): Days with 10 cm or more snowfall	54	11	1990	1
25 cm (9.8 in): Days with 25 cm or more snowfall	26	3	1969	1
50 cm (19.7 in): Days with 50 cm or more snowfall	4	1	1966	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for Newhalem 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).

Newhalem Threshold Days by Year (USC00455840)

Key Facts for Newhalem Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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