Richton 1 N Threshold Days by Year (USC00227444)

16 fixed thresholds counted per year at Richton 1 N (USC00227444): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richton 1 N Thresholds

Richton 1 N: days with a maximum temperature at or above 30 C (86 F) in 42 years, most in 1963 with 161.
Richton 1 N: days with a maximum temperature at or above 90 F (32.2 C) in 42 years, most in 1962 with 119.
Richton 1 N: nights with a minimum temperature at or below 0 C (32 F) in 41 years, most in 1963 with 92.
Richton 1 N: nights with a minimum temperature at or above 20 C (68 F) in 41 years, most in 1991 with 97.
16 fixed thresholds have at least one qualifying day at Richton 1 N.

Days at or above 30 C (86 F)

42 years with a qualifying day

Days per year at Richton 1 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 161 in 1963.

Days at or above 30 C (86 F) per year at Richton 1 N
Year	Days	Decade average
1959	142	142
1960	131	128.1
1961	118	128.1
1962	157	128.1
1963	161	128.1
1964	129	128.1
1965	130	128.1
1966	110	128.1
1967	106	128.1
1968	116	128.1
1969	123	128.1
1970	134	127.7
1971	131	127.7
1972	142	127.7
1973	134	127.7
1974	122	127.7
1975	119	127.7
1976	110	127.7
1977	137	127.7
1978	140	127.7
1979	108	127.7
1980	132	127.3
1981	137	127.3
1982	144	127.3
1983	109	127.3
1984	127	127.3
1985	122	127.3
1986	142	127.3
1987	134	127.3
1988	120	127.3
1989	106	127.3
1990	128	123
1991	109	123
1992	100	123
1993	111	123
1994	104	123
1995	148	123
1996	136	123
1997	128	123
1998	143	123
2003	89	97
2004	105	97

For each year, a bar from the first to the last day at Richton 1 N meeting 30 C (86 F).

First to last qualifying date each year at Richton 1 N
Year	First date	Last date
1959	1959-05-01	1959-10-14
1960	1960-04-22	1960-10-16
1961	1961-05-06	1961-11-01
1962	1962-04-12	1962-10-21
1963	1963-03-14	1963-10-29
1964	1964-04-23	1964-10-02
1965	1965-04-08	1965-10-10
1966	1966-04-14	1966-10-15
1967	1967-03-12	1967-10-07
1968	1968-04-21	1968-10-15
1969	1969-04-16	1969-10-14
1970	1970-04-18	1970-10-13
1971	1971-04-28	1971-11-02
1972	1972-04-13	1972-11-03
1973	1973-05-11	1973-10-12
1974	1974-03-11	1974-10-12
1975	1975-04-26	1975-10-16
1976	1976-04-20	1976-10-06
1977	1977-05-06	1977-10-02
1978	1978-04-01	1978-10-30
1979	1979-04-18	1979-10-22
1980	1980-04-23	1980-10-18
1981	1981-04-14	1981-10-18
1982	1982-03-18	1982-11-02
1983	1983-05-14	1983-10-21
1984	1984-04-29	1984-11-02
1985	1985-04-29	1985-10-23
1986	1986-04-08	1986-11-09
1987	1987-04-19	1987-10-21
1988	1988-04-06	1988-10-19
1989	1989-03-15	1989-10-07
1990	1990-05-01	1990-10-18
1991	1991-03-26	1991-10-13
1992	1992-04-14	1992-09-22
1993	1993-05-06	1993-10-21
1994	1994-04-16	1994-10-26
1995	1995-03-22	1995-11-01
1996	1996-04-13	1996-10-29
1997	1997-03-22	1997-10-11
1998	1998-03-30	1998-11-01
2003	2003-05-02	2003-10-24
2004	2004-05-07	2004-11-03

Every Fixed Threshold

Fixed thresholds at Richton 1 N
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	42	161	1963	105
35 C (95 F): Days	40	60	1980	9
40 C (104 F): Days	2	2	1988	2
90 F (32.2 C): Days	42	119	1962	48
100 F (37.8 C): Days	15	12	1998	12
0 C (32 F): Ice days (max	12	3	1962	2
0 C (32 F): Frost days (min	41	92	1963	47
-10 C (14 F): Days with min	20	6	1962	4
20 C (68 F): Tropical nights (min	41	97	1991	86
25 C (77 F): Days with min	1	1	1998	1
10 mm (0.39 in): Days with 10 mm or more rain	41	58	1975	41
25 mm (0.98 in): Days with 25 mm or more rain	41	29	1961	20
50 mm (1.97 in): Days with 50 mm or more rain	41	15	1979	7
100 mm (3.94 in): Days with 100 mm or more rain	17	4	1961	2
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1983	1
10 cm (3.9 in): Days with 10 cm or more snowfall	2	1	1977	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

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Data for Richton 1 N 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).

Richton 1 N Threshold Days by Year (USC00227444)

Key Facts for Richton 1 N Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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