Clarksville Threshold Days by Year

17 fixed thresholds counted per year at Clarksville (USC00031455): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clarksville Thresholds

Clarksville: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1963 with 154.
Clarksville: days with a maximum temperature at or above 35 C (95 F) in 39 years, most in 1954 with 89.
Clarksville: days with a maximum temperature at or above 90 F (32.2 C) in 39 years, most in 1954 with 115.
Clarksville: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1976 with 126.
17 fixed thresholds have at least one qualifying day at Clarksville.

Days at or above 30 C (86 F)

39 years with a qualifying day

Days per year at Clarksville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 154 in 1963.

Days at or above 30 C (86 F) per year at Clarksville
Year	Days	Decade average
1954	134	113.2
1955	115	113.2
1956	135	113.2
1957	79	113.2
1958	112	113.2
1959	104	113.2
1960	117	110.9
1961	85	110.9
1962	124	110.9
1963	154	110.9
1964	107	110.9
1965	112	110.9
1966	97	110.9
1967	93	110.9
1968	103	110.9
1969	117	110.9
1970	110	99.2
1971	98	99.2
1972	117	99.2
1973	103	99.2
1974	84	99.2
1975	95	99.2
1976	78	99.2
1977	114	99.2
1978	110	99.2
1979	83	99.2
1980	120	104.3
1981	99	104.3
1982	102	104.3
1983	108	104.3
1984	100	104.3
1985	104	104.3
1986	102	104.3
1987	109	104.3
1988	111	104.3
1989	88	104.3
1990	92	85.3
1991	96	85.3
1992	68	85.3

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

First to last qualifying date each year at Clarksville
Year	First date	Last date
1954	1954-04-05	1954-10-11
1955	1955-03-10	1955-11-13
1956	1956-03-06	1956-10-18
1957	1957-05-10	1957-09-20
1958	1958-04-04	1958-10-09
1959	1959-04-26	1959-10-03
1960	1960-04-07	1960-10-05
1961	1961-04-24	1961-10-12
1962	1962-02-12	1962-10-11
1963	1963-03-28	1963-10-27
1964	1964-04-16	1964-10-17
1965	1965-04-04	1965-10-17
1966	1966-03-31	1966-10-14
1967	1967-03-11	1967-10-06
1968	1968-05-02	1968-10-15
1969	1969-04-09	1969-10-11
1970	1970-04-28	1970-10-02
1971	1971-05-26	1971-10-02
1972	1972-04-12	1972-10-16
1973	1973-05-10	1973-10-10
1974	1974-03-31	1974-09-13
1975	1975-05-02	1975-10-14
1976	1976-05-23	1976-10-04
1977	1977-05-08	1977-10-02
1978	1978-05-20	1978-10-23
1979	1979-05-08	1979-10-22
1980	1980-04-22	1980-10-11
1981	1981-04-11	1981-10-06
1982	1982-03-18	1982-10-06
1983	1983-05-28	1983-10-09
1984	1984-04-25	1984-09-26
1985	1985-03-29	1985-09-23
1986	1986-04-08	1986-10-04
1987	1987-04-18	1987-09-26
1988	1988-04-05	1988-10-18
1989	1989-03-12	1989-10-17
1990	1990-04-30	1990-10-06
1991	1991-05-13	1991-10-19
1992	1992-05-05	1992-10-14

Every Fixed Threshold

Fixed thresholds at Clarksville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	39	154	1963	68
35 C (95 F): Days	39	89	1954	3
40 C (104 F): Days	10	24	1954	5
90 F (32.2 C): Days	39	115	1954	32
100 F (37.8 C): Days	32	56	1980	5
110 F (43.3 C): Days	1	2	1954	2
0 C (32 F): Ice days (max	34	15	1978	1
0 C (32 F): Frost days (min	39	126	1976	81
-10 C (14 F): Days with min	37	26	1979	2
-20 C (-4 F): Days with min	5	5	1977	2
20 C (68 F): Tropical nights (min	39	89	1954	36
25 C (77 F): Days with min	9	4	1966	2
10 mm (0.39 in): Days with 10 mm or more rain	39	52	1984	40
25 mm (0.98 in): Days with 25 mm or more rain	39	22	1973	11
50 mm (1.97 in): Days with 50 mm or more rain	37	7	1968	2
100 mm (3.94 in): Days with 100 mm or more rain	11	2	1965	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	2	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 1954.

Download the Data

Data for Clarksville 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Clarksville Threshold Days by Year

Key Facts for Clarksville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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