Spencer Threshold Days by Year (USC00128290)

18 fixed thresholds counted per year at Spencer (USC00128290): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spencer Thresholds

Spencer: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1982 with 52.
Spencer: days with 25 mm (0.98 in) or more of precipitation in 76 years, most in 2013 with 19.
Spencer: days with 50 mm (1.97 in) or more of precipitation in 73 years, most in 1961 with 6.
Spencer: days with a maximum temperature at or above 30 C (86 F) in 72 years, most in 1953 with 99.
18 fixed thresholds have at least one qualifying day at Spencer.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at Spencer with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 1953.

Days at or above 30 C (86 F) per year at Spencer
Year	Days	Decade average
1950	39	73.1
1951	69	73.1
1952	90	73.1
1953	99	73.1
1954	98	73.1
1955	91	73.1
1957	56	73.1
1958	43	73.1
1961	71	61
1962	77	61
1963	64	61
1964	66	61
1965	48	61
1966	56	61
1967	46	61
1968	57	61
1969	64	61
1970	52	52
1971	49	52
1972	46	52
1973	53	52
1974	38	52
1975	68	52
1976	45	52
1977	66	52
1978	60	52
1979	43	52
1980	73	47.6
1981	37	47.6
1982	35	47.6
1983	82	47.6
1984	56	47.6
1985	26	47.6
1986	20	47.6
1987	59	47.6
1988	62	47.6
1989	26	47.6
1990	26	30.7
1991	35	30.7
1992	8	30.7
1993	33	30.7
1994	31	30.7
1995	39	30.7
1996	26	30.7
1997	28	30.7
1998	34	30.7
1999	47	30.7
2000	35	44.1
2001	45	44.1
2002	66	44.1
2003	28	44.1
2004	24	44.1
2005	65	44.1
2006	47	44.1
2007	71	44.1
2008	32	44.1
2009	28	44.1
2010	72	62.1
2011	76	62.1
2012	76	62.1
2013	40	62.1
2014	35	62.1
2015	47	62.1
2016	73	62.1
2017	57	62.1
2018	81	62.1
2019	64	62.1
2020	62	45.4
2021	58	45.4
2022	53	45.4
2023	49	45.4
2025	5	45.4

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

First to last qualifying date each year at Spencer
Year	First date	Last date
1950	1950-05-05	1950-10-18
1951	1951-05-01	1951-10-06
1952	1952-04-29	1952-10-02
1953	1953-04-10	1953-10-23
1954	1954-04-26	1954-10-11
1955	1955-05-03	1955-09-30
1957	1957-04-27	1957-09-16
1958	1958-04-19	1958-09-26
1961	1961-06-02	1961-10-13
1962	1962-04-28	1962-10-12
1963	1963-05-09	1963-10-24
1964	1964-05-19	1964-09-16
1965	1965-04-24	1965-09-21
1966	1966-05-24	1966-09-13
1967	1967-04-17	1967-10-05
1968	1968-05-03	1968-09-24
1969	1969-05-06	1969-09-08
1970	1970-05-01	1970-09-24
1971	1971-06-04	1971-10-03
1972	1972-05-22	1972-09-20
1973	1973-06-04	1973-09-27
1974	1974-05-21	1974-08-28
1975	1975-05-20	1975-10-14
1976	1976-06-08	1976-09-09
1977	1977-04-18	1977-09-19
1978	1978-05-27	1978-09-21
1979	1979-05-09	1979-09-13
1980	1980-04-23	1980-09-23
1981	1981-06-09	1981-09-14
1982	1982-05-14	1982-10-07
1983	1983-06-12	1983-10-03
1984	1984-06-07	1984-09-23
1985	1985-06-01	1985-09-10
1986	1986-05-18	1986-09-30
1987	1987-04-23	1987-09-15
1988	1988-05-16	1988-09-23
1989	1989-05-31	1989-09-10
1990	1990-06-09	1990-09-08
1991	1991-05-29	1991-09-17
1992	1992-06-18	1992-08-11
1993	1993-06-18	1993-08-31
1994	1994-06-07	1994-09-15
1995	1995-06-08	1995-09-07
1996	1996-06-15	1996-08-25
1997	1997-06-20	1997-09-20
1998	1998-05-15	1998-09-28
1999	1999-06-07	1999-09-29
2000	2000-05-25	2000-09-04
2001	2001-05-16	2001-09-08
2002	2002-06-01	2002-10-03
2003	2003-06-25	2003-08-29
2004	2004-05-22	2004-08-28
2005	2005-05-09	2005-10-06
2006	2006-04-16	2006-10-05
2007	2007-05-01	2007-10-09
2008	2008-06-03	2008-09-25
2009	2009-05-24	2009-09-16
2010	2010-05-24	2010-10-11
2011	2011-05-12	2011-09-14
2012	2012-05-03	2012-09-08
2013	2013-05-16	2013-09-12
2014	2014-05-27	2014-09-06
2015	2015-05-07	2015-09-19
2016	2016-05-31	2016-10-07
2017	2017-05-19	2017-09-27
2018	2018-05-12	2018-10-10
2019	2019-05-19	2019-10-03
2020	2020-05-25	2020-10-08
2021	2021-05-21	2021-10-01
2022	2022-05-11	2022-09-22
2023	2023-05-25	2023-10-04
2025	2025-06-22	2025-06-26

Every Fixed Threshold

Fixed thresholds at Spencer
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	99	1953	5
35 C (95 F): Days	44	36	1954	1
40 C (104 F): Days	3	4	1954	4
90 F (32.2 C): Days	70	71	1953	5
100 F (37.8 C): Days	11	11	1954	10
0 C (32 F): Ice days (max	72	51	1978	20
0 C (32 F): Frost days (min	72	166	1976	53
-10 C (14 F): Days with min	72	54	1963	23
-20 C (-4 F): Days with min	48	26	1977	1
-30 C (-22 F): Days with min	5	3	1977	2
20 C (68 F): Tropical nights (min	72	41	2016	5
25 C (77 F): Days with min	5	1	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	77	52	1982	2
25 mm (0.98 in): Days with 25 mm or more rain	76	19	2013	7
50 mm (1.97 in): Days with 50 mm or more rain	73	6	1961	3
100 mm (3.94 in): Days with 100 mm or more rain	9	1	1979	1
10 cm (3.9 in): Days with 10 cm or more snowfall	46	5	1951	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1973	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 Spencer 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).

Spencer Threshold Days by Year (USC00128290)

Key Facts for Spencer Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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