Tryon Threshold Days by Year (USC00258650)

18 fixed thresholds counted per year at Tryon (USC00258650): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Tryon Thresholds

Tryon: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1965 with 22.
Tryon: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1965 with 7.
Tryon: days with a maximum temperature at or above 30 C (86 F) in 28 years, most in 1970 with 82.
Tryon: days with a maximum temperature at or above 35 C (95 F) in 28 years, most in 1952 with 33.
18 fixed thresholds have at least one qualifying day at Tryon.

Days at or above 30 C (86 F)

28 years with a qualifying day

Days per year at Tryon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 82 in 1970.

Days at or above 30 C (86 F) per year at Tryon
Year	Days	Decade average
1946	63	64.5
1948	66	64.5
1950	39	61.3
1952	79	61.3
1953	74	61.3
1954	72	61.3
1955	76	61.3
1956	74	61.3
1957	50	61.3
1958	33	61.3
1959	55	61.3
1960	65	63.2
1961	63	63.2
1963	72	63.2
1964	73	63.2
1965	43	63.2
1966	65	63.2
1967	53	63.2
1968	72	63.2
1969	63	63.2
1970	82	62
1971	42	62
1991	58	41.2
1992	24	41.2
1993	25	41.2
1998	54	41.2
1999	45	41.2
2000	73	73

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

First to last qualifying date each year at Tryon
Year	First date	Last date
1946	1946-04-19	1946-09-26
1948	1948-04-18	1948-09-21
1950	1950-04-22	1950-10-18
1952	1952-04-27	1952-09-30
1953	1953-05-24	1953-10-09
1954	1954-05-21	1954-10-08
1955	1955-04-26	1955-10-09
1956	1956-05-18	1956-10-11
1957	1957-06-04	1957-09-29
1958	1958-05-11	1958-09-02
1959	1959-05-01	1959-09-09
1960	1960-04-21	1960-09-20
1961	1961-06-09	1961-09-17
1963	1963-05-07	1963-10-06
1964	1964-04-16	1964-10-15
1965	1965-04-30	1965-10-09
1966	1966-05-04	1966-09-24
1967	1967-05-10	1967-10-04
1968	1968-03-30	1968-10-15
1969	1969-05-25	1969-09-28
1970	1970-05-07	1970-10-06
1971	1971-06-16	1971-09-14
1991	1991-04-07	1991-10-17
1992	1992-05-01	1992-10-05
1993	1993-06-17	1993-10-07
1998	1998-05-14	1998-09-29
1999	1999-06-05	1999-09-25
2000	2000-05-05	2000-09-19

Every Fixed Threshold

Fixed thresholds at Tryon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	28	82	1970	73
35 C (95 F): Days	28	33	1952	23
40 C (104 F): Days	7	6	1954	1
90 F (32.2 C): Days	28	62	1970	58
100 F (37.8 C): Days	23	16	1952	6
110 F (43.3 C): Days	1	1	1954	1
0 C (32 F): Ice days (max	28	61	1955	42
0 C (32 F): Frost days (min	27	186	1999	182
-10 C (14 F): Days with min	27	80	1955	54
-20 C (-4 F): Days with min	27	22	1963	3
-30 C (-22 F): Days with min	7	5	1963	1
20 C (68 F): Tropical nights (min	22	9	1955	1
25 C (77 F): Days with min	1	1	1955	1
10 mm (0.39 in): Days with 10 mm or more rain	31	22	1965	14
25 mm (0.98 in): Days with 25 mm or more rain	30	7	1965	4
50 mm (1.97 in): Days with 50 mm or more rain	12	3	1965	1
10 cm (3.9 in): Days with 10 cm or more snowfall	26	9	1971	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

Data for Tryon 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).

Tryon Threshold Days by Year (USC00258650)

Key Facts for Tryon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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