Smyrna Threshold Days by Year (USC00457727)

18 fixed thresholds counted per year at Smyrna (USC00457727): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Smyrna Thresholds

Smyrna: days with a maximum temperature at or above 30 C (86 F) in 50 years, most in 1958 with 102.
Smyrna: days with a maximum temperature at or above 35 C (95 F) in 50 years, most in 1958 with 68.
Smyrna: days with a maximum temperature at or above 90 F (32.2 C) in 50 years, most in 1958 with 86.
Smyrna: days with a maximum temperature at or above 100 F (37.8 C) in 49 years, most in 1958 with 41.
18 fixed thresholds have at least one qualifying day at Smyrna.

Days at or above 30 C (86 F)

50 years with a qualifying day

Days per year at Smyrna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 102 in 1958.

Days at or above 30 C (86 F) per year at Smyrna
Year	Days	Decade average
1952	95	75.1
1953	66	75.1
1954	58	75.1
1955	70	75.1
1956	78	75.1
1957	76	75.1
1958	102	75.1
1959	56	75.1
1960	77	70.7
1961	87	70.7
1962	67	70.7
1963	77	70.7
1964	52	70.7
1965	64	70.7
1971	63	65.4
1972	65	65.4
1973	68	65.4
1974	76	65.4
1975	57	65.4
1976	65	65.4
1977	71	65.4
1978	57	65.4
1979	67	65.4
1980	61	68.6
1981	70	68.6
1982	65	68.6
1983	67	68.6
1984	61	68.6
1985	73	68.6
1986	73	68.6
1987	79	68.6
1988	73	68.6
1989	64	68.6
1990	72	69.2
1991	68	69.2
1993	51	69.2
1994	85	69.2
1995	60	69.2
1996	63	69.2
1997	70	69.2
1998	91	69.2
1999	63	69.2
2000	64	72.8
2001	74	72.8
2002	44	72.8
2003	93	72.8
2004	66	72.8
2005	71	72.8
2006	83	72.8
2007	87	72.8

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

First to last qualifying date each year at Smyrna
Year	First date	Last date
1952	1952-04-18	1952-10-11
1953	1953-05-05	1953-09-21
1954	1954-05-15	1954-09-26
1955	1955-05-19	1955-09-12
1956	1956-04-21	1956-09-25
1957	1957-04-29	1957-09-25
1958	1958-05-08	1958-10-05
1959	1959-05-13	1959-09-13
1960	1960-05-10	1960-09-30
1961	1961-05-19	1961-09-17
1962	1962-06-07	1962-09-27
1963	1963-05-18	1963-09-29
1964	1964-05-16	1964-09-24
1965	1965-05-11	1965-09-21
1971	1971-05-03	1971-10-05
1972	1972-05-14	1972-09-16
1973	1973-05-14	1973-09-30
1974	1974-06-02	1974-09-26
1975	1975-05-15	1975-09-23
1976	1976-05-02	1976-10-01
1977	1977-04-24	1977-09-14
1978	1978-05-21	1978-09-27
1979	1979-05-15	1979-09-25
1980	1980-04-28	1980-10-08
1981	1981-04-24	1981-09-19
1982	1982-05-25	1982-09-19
1983	1983-05-21	1983-09-27
1984	1984-05-30	1984-09-19
1985	1985-05-17	1985-09-05
1986	1986-05-26	1986-09-06
1987	1987-04-28	1987-09-25
1988	1988-05-12	1988-10-03
1989	1989-05-07	1989-09-30
1990	1990-05-05	1990-09-28
1991	1991-06-02	1991-10-01
1993	1993-05-11	1993-09-30
1994	1994-04-17	1994-09-28
1995	1995-05-24	1995-09-18
1996	1996-05-25	1996-09-29
1997	1997-05-12	1997-09-25
1998	1998-04-30	1998-09-30
1999	1999-05-24	1999-09-23
2000	2000-06-04	2000-09-19
2001	2001-05-12	2001-09-24
2002	2002-06-12	2002-09-19
2003	2003-05-24	2003-10-21
2004	2004-06-03	2004-09-28
2005	2005-05-27	2005-09-08
2006	2006-05-15	2006-09-30
2007	2007-05-08	2007-09-15

Every Fixed Threshold

Fixed thresholds at Smyrna
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	50	102	1958	87
35 C (95 F): Days	50	68	1958	36
40 C (104 F): Days	40	16	1958	4
45 C (113 F): Days	2	1	1961	1
90 F (32.2 C): Days	50	86	1958	68
100 F (37.8 C): Days	49	41	1958	15
110 F (43.3 C): Days	3	2	1960	1
0 C (32 F): Ice days (max	49	64	1985	17
0 C (32 F): Frost days (min	49	157	1955	120
-10 C (14 F): Days with min	47	47	1985	13
-20 C (-4 F): Days with min	19	12	1957	1
-30 C (-22 F): Days with min	3	4	1996	4
20 C (68 F): Tropical nights (min	46	17	1958	5
25 C (77 F): Days with min	5	1	1959	1
10 mm (0.39 in): Days with 10 mm or more rain	47	9	1995	2
25 mm (0.98 in): Days with 25 mm or more rain	7	1	1963	1
10 cm (3.9 in): Days with 10 cm or more snowfall	6	2	1954	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1963	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 Smyrna 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).

Smyrna Threshold Days by Year (USC00457727)

Key Facts for Smyrna Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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