Johnson Exp Farm Threshold Days by Year (USC00124407)

16 fixed thresholds counted per year at Johnson Exp Farm (USC00124407): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Johnson Exp Farm Thresholds

Johnson Exp Farm: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1953 with 119.
Johnson Exp Farm: days with a maximum temperature at or above 90 F (32.2 C) in 41 years, most in 1953 with 85.
Johnson Exp Farm: days with a maximum temperature at or below 0 C (32 F) in 41 years, most in 1977 with 42.
Johnson Exp Farm: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1976 with 121.
16 fixed thresholds have at least one qualifying day at Johnson Exp Farm.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Johnson Exp Farm with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 119 in 1953.

Days at or above 30 C (86 F) per year at Johnson Exp Farm
Year	Days	Decade average
1937	103	109
1938	106	109
1939	118	109
1940	87	86
1941	111	86
1942	89	86
1943	88	86
1944	111	86
1945	67	86
1946	68	86
1947	80	86
1948	79	86
1949	80	86
1950	55	87.8
1951	80	87.8
1952	101	87.8
1953	119	87.8
1954	98	87.8
1955	96	87.8
1956	95	87.8
1957	78	87.8
1958	63	87.8
1959	93	87.8
1960	81	76.1
1961	78	76.1
1962	91	76.1
1963	90	76.1
1964	91	76.1
1965	78	76.1
1966	69	76.1
1967	45	76.1
1968	70	76.1
1969	68	76.1
1970	74	67.4
1971	67	67.4
1972	64	67.4
1973	75	67.4
1974	49	67.4
1975	71	67.4
1976	55	67.4
1977	84	67.4

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

First to last qualifying date each year at Johnson Exp Farm
Year	First date	Last date
1937	1937-04-17	1937-10-05
1938	1938-04-19	1938-10-18
1939	1939-04-24	1939-10-09
1940	1940-05-07	1940-10-26
1941	1941-04-13	1941-10-06
1942	1942-04-29	1942-10-09
1943	1943-05-05	1943-09-04
1944	1944-05-12	1944-10-06
1945	1945-05-27	1945-09-24
1946	1946-06-07	1946-10-07
1947	1947-05-15	1947-10-22
1948	1948-04-25	1948-09-21
1949	1949-05-03	1949-09-04
1950	1950-05-17	1950-10-17
1951	1951-04-28	1951-10-05
1952	1952-04-28	1952-10-01
1953	1953-05-21	1953-10-22
1954	1954-04-25	1954-10-05
1955	1955-05-03	1955-09-30
1956	1956-05-12	1956-10-02
1957	1957-05-15	1957-09-25
1958	1958-05-15	1958-09-26
1959	1959-04-30	1959-10-04
1960	1960-04-24	1960-10-02
1961	1961-05-29	1961-10-12
1962	1962-04-30	1962-10-12
1963	1963-05-08	1963-10-23
1964	1964-05-17	1964-09-20
1965	1965-04-22	1965-09-14
1966	1966-05-09	1966-09-05
1967	1967-04-17	1967-10-05
1968	1968-05-02	1968-10-01
1969	1969-05-06	1969-10-01
1970	1970-05-22	1970-09-26
1971	1971-04-21	1971-10-04
1972	1972-05-22	1972-09-21
1973	1973-06-04	1973-09-27
1974	1974-05-20	1974-09-13
1975	1975-05-20	1975-10-14
1976	1976-05-22	1976-09-20
1977	1977-04-16	1977-09-19

Every Fixed Threshold

Fixed thresholds at Johnson Exp Farm
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	119	1953	84
35 C (95 F): Days	40	51	1953	11
40 C (104 F): Days	9	3	1954	1
90 F (32.2 C): Days	41	85	1953	37
100 F (37.8 C): Days	17	14	1938	4
0 C (32 F): Ice days (max	41	42	1977	42
0 C (32 F): Frost days (min	41	121	1976	96
-10 C (14 F): Days with min	41	48	1977	48
-20 C (-4 F): Days with min	19	12	1977	12
20 C (68 F): Tropical nights (min	41	63	1943	50
25 C (77 F): Days with min	19	4	1952	1
10 mm (0.39 in): Days with 10 mm or more rain	40	54	1945	39
25 mm (0.98 in): Days with 25 mm or more rain	40	20	1945	11
50 mm (1.97 in): Days with 50 mm or more rain	34	8	1945	2
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1945	1
10 cm (3.9 in): Days with 10 cm or more snowfall	19	3	1970	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1937.

Download the Data

Data for Johnson Exp Farm 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).

Johnson Exp Farm Threshold Days by Year (USC00124407)

Key Facts for Johnson Exp Farm Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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