Bellevue L/D 12 Threshold Days by Year

17 fixed thresholds counted per year at Bellevue L/D 12 (USC00130608): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bellevue L/D 12 Thresholds

Bellevue L/D 12: days with a maximum temperature at or above 30 C (86 F) in 84 years, most in 1988 with 67.
Bellevue L/D 12: days with a maximum temperature at or above 90 F (32.2 C) in 84 years, most in 1988 with 48.
Bellevue L/D 12: days with a maximum temperature at or below 0 C (32 F) in 84 years, most in 2014 with 75.
Bellevue L/D 12: days with 10 mm (0.39 in) or more of precipitation in 84 years, most in 1951 with 50.
17 fixed thresholds have at least one qualifying day at Bellevue L/D 12.

Days at or above 30 C (86 F)

84 years with a qualifying day

Days per year at Bellevue L/D 12 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 67 in 1988.

Days at or above 30 C (86 F) per year at Bellevue L/D 12
Year	Days	Decade average
1941	43	37.8
1942	30	37.8
1943	39	37.8
1944	35	37.8
1945	24	37.8
1946	34	37.8
1947	45	37.8
1948	41	37.8
1949	49	37.8
1950	15	34.2
1951	10	34.2
1952	47	34.2
1953	36	34.2
1954	44	34.2
1955	56	34.2
1956	40	34.2
1957	34	34.2
1958	17	34.2
1959	43	34.2
1960	29	29.8
1961	28	29.8
1962	26	29.8
1963	42	29.8
1964	42	29.8
1965	21	29.8
1966	35	29.8
1967	19	29.8
1968	29	29.8
1969	27	29.8
1970	40	37.2
1971	36	37.2
1972	30	37.2
1973	37	37.2
1974	23	37.2
1975	50	37.2
1976	40	37.2
1977	39	37.2
1978	43	37.2
1979	34	37.2
1980	48	43.8
1981	29	43.8
1982	22	43.8
1983	64	43.8
1984	48	43.8
1985	46	43.8
1986	32	43.8
1987	48	43.8
1988	67	43.8
1989	34	43.8
1990	27	32
1991	45	32
1992	15	32
1993	14	32
1994	38	32
1995	49	32
1996	25	32
1997	26	32
1998	38	32
1999	43	32
2000	33	44
2001	43	44
2002	59	44
2003	41	44
2004	24	44
2005	62	44
2006	43	44
2007	62	44
2008	29	44
2010	57	42.3
2012	63	42.3
2013	40	42.3
2014	30	42.3
2015	28	42.3
2016	52	42.3
2017	32	42.3
2018	46	42.3
2019	33	42.3
2020	39	42.4
2021	50	42.4
2022	37	42.4
2023	46	42.4
2024	40	42.4
2025	48	42.4
2026	37	42.4

For each year, a bar from the first to the last day at Bellevue L/D 12 meeting 30 C (86 F).

First to last qualifying date each year at Bellevue L/D 12
Year	First date	Last date
1941	1941-05-20	1941-09-22
1942	1942-04-29	1942-09-16
1943	1943-06-12	1943-09-01
1944	1944-05-15	1944-09-03
1945	1945-06-23	1945-09-07
1946	1946-06-07	1946-09-06
1947	1947-06-09	1947-10-14
1948	1948-04-18	1948-09-19
1949	1949-05-03	1949-08-28
1950	1950-05-24	1950-10-18
1951	1951-06-01	1951-08-30
1952	1952-04-29	1952-09-30
1953	1953-05-25	1953-10-02
1954	1954-06-09	1954-10-03
1955	1955-05-19	1955-09-18
1956	1956-05-12	1956-09-03
1957	1957-06-06	1957-09-01
1958	1958-06-29	1958-08-30
1959	1959-05-02	1959-09-22
1960	1960-06-28	1960-09-08
1961	1961-05-31	1961-09-10
1962	1962-05-16	1962-10-11
1963	1963-05-08	1963-10-06
1964	1964-05-18	1964-09-09
1965	1965-05-02	1965-09-09
1966	1966-05-26	1966-09-02
1967	1967-05-18	1967-08-03
1968	1968-06-04	1968-09-03
1969	1969-05-27	1969-10-01
1970	1970-04-28	1970-09-20
1971	1971-05-17	1971-10-01
1972	1972-05-20	1972-09-16
1973	1973-06-08	1973-09-01
1974	1974-06-20	1974-08-26
1975	1975-05-18	1975-10-13
1976	1976-06-06	1976-10-01
1977	1977-04-18	1977-09-08
1978	1978-05-25	1978-09-19
1979	1979-05-08	1979-09-12
1980	1980-04-21	1980-09-20
1981	1981-05-31	1981-09-30
1982	1982-05-17	1982-09-30
1983	1983-06-11	1983-10-02
1984	1984-05-17	1984-09-24
1985	1985-04-18	1985-09-19
1986	1986-03-30	1986-09-27
1987	1987-04-21	1987-09-06
1988	1988-05-13	1988-09-23
1989	1989-05-25	1989-08-23
1990	1990-04-25	1990-10-07
1991	1991-04-07	1991-09-10
1992	1992-05-02	1992-08-26
1993	1993-06-23	1993-08-28
1994	1994-04-19	1994-09-16
1995	1995-06-07	1995-09-14
1996	1996-05-18	1996-09-07
1997	1997-06-21	1997-10-08
1998	1998-05-18	1998-09-27
1999	1999-05-29	1999-09-05
2000	2000-06-02	2000-09-19
2001	2001-05-16	2001-09-08
2002	2002-04-16	2002-10-01
2003	2003-04-15	2003-09-09
2004	2004-04-17	2004-09-15
2005	2005-06-07	2005-10-06
2006	2006-04-14	2006-10-04
2007	2007-04-30	2007-10-08
2008	2008-06-06	2008-09-26
2010	2010-05-24	2010-09-22
2012	2012-05-19	2012-09-13
2013	2013-05-01	2013-09-20
2014	2014-05-26	2014-09-29
2015	2015-06-05	2015-09-17
2016	2016-05-07	2016-09-21
2017	2017-05-16	2017-09-26
2018	2018-05-18	2018-09-21
2019	2019-05-17	2019-10-01
2020	2020-06-03	2020-09-07
2021	2021-05-03	2021-10-01
2022	2022-05-11	2022-09-21
2023	2023-05-30	2023-10-04
2024	2024-05-13	2024-10-12
2025	2025-05-16	2025-10-06
2026	2026-04-23	2026-09-10

Every Fixed Threshold

Fixed thresholds at Bellevue L/D 12
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	84	67	1988	37
35 C (95 F): Days	64	24	1988	6
90 F (32.2 C): Days	84	48	1988	17
100 F (37.8 C): Days	14	8	1988	2
0 C (32 F): Ice days (max	84	75	2014	29
0 C (32 F): Frost days (min	81	171	1989	83
-10 C (14 F): Days with min	81	77	2013	27
-20 C (-4 F): Days with min	80	35	1963	5
-30 C (-22 F): Days with min	21	6	1996	4
20 C (68 F): Tropical nights (min	80	38	1983	36
25 C (77 F): Days with min	18	5	1955	3
10 mm (0.39 in): Days with 10 mm or more rain	84	50	1951	33
25 mm (0.98 in): Days with 25 mm or more rain	84	16	2008	11
50 mm (1.97 in): Days with 50 mm or more rain	62	4	2008	3
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1961	1
10 cm (3.9 in): Days with 10 cm or more snowfall	69	7	2007	1
25 cm (9.8 in): Days with 25 cm or more snowfall	9	2	1996	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

Data for Bellevue L/D 12 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Bellevue L/D 12 Threshold Days by Year

Key Facts for Bellevue L/D 12 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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