Nitta Yuma Threshold Days by Year (USC00226351)

16 fixed thresholds counted per year at Nitta Yuma (USC00226351): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nitta Yuma Thresholds

Nitta Yuma: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1960 with 77.
Nitta Yuma: nights with a minimum temperature at or above 20 C (68 F) in 33 years, most in 1970 with 109.
Nitta Yuma: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1957 with 62.
Nitta Yuma: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1968 with 28.
16 fixed thresholds have at least one qualifying day at Nitta Yuma.

Days at or above 30 C (86 F)

32 years with a qualifying day

Days per year at Nitta Yuma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 151 in 1963.

Days at or above 30 C (86 F) per year at Nitta Yuma
Year	Days	Decade average
1902	131	131.5
1905	132	131.5
1955	150	132.6
1956	135	132.6
1957	116	132.6
1958	116	132.6
1959	146	132.6
1960	128	124.9
1961	113	124.9
1962	147	124.9
1963	151	124.9
1964	118	124.9
1965	141	124.9
1966	114	124.9
1967	113	124.9
1968	113	124.9
1969	111	124.9
1970	135	119.5
1971	113	119.5
1972	138	119.5
1973	129	119.5
1974	104	119.5
1975	109	119.5
1976	101	119.5
1977	137	119.5
1978	126	119.5
1979	103	119.5
1981	129	126.4
1982	135	126.4
1983	117	126.4
1984	121	126.4
1985	130	126.4

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

First to last qualifying date each year at Nitta Yuma
Year	First date	Last date
1902	1902-04-20	1902-09-29
1905	1905-04-08	1905-10-19
1955	1955-03-11	1955-11-14
1956	1956-04-29	1956-10-19
1957	1957-04-20	1957-09-22
1958	1958-04-24	1958-10-10
1959	1959-04-21	1959-10-12
1960	1960-04-07	1960-10-04
1961	1961-05-06	1961-10-13
1962	1962-04-21	1962-10-21
1963	1963-03-14	1963-10-24
1964	1964-05-03	1964-09-28
1965	1965-04-10	1965-10-18
1966	1966-04-01	1966-10-15
1967	1967-03-14	1967-10-24
1968	1968-04-20	1968-10-17
1969	1969-05-21	1969-10-20
1970	1970-04-23	1970-10-09
1971	1971-04-27	1971-11-03
1972	1972-04-13	1972-10-19
1973	1973-05-11	1973-10-13
1974	1974-03-07	1974-09-29
1975	1975-04-25	1975-10-15
1976	1976-04-16	1976-10-04
1977	1977-04-11	1977-10-02
1978	1978-04-02	1978-10-13
1979	1979-05-08	1979-10-22
1981	1981-04-14	1981-10-16
1982	1982-04-17	1982-10-10
1983	1983-05-14	1983-10-21
1984	1984-05-07	1984-11-01
1985	1985-04-20	1985-10-15

Every Fixed Threshold

Fixed thresholds at Nitta Yuma
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	32	151	1963	130
35 C (95 F): Days	32	58	1902	45
40 C (104 F): Days	2	1	1902	1
90 F (32.2 C): Days	32	111	1977	90
100 F (37.8 C): Days	16	11	1956	5
0 C (32 F): Ice days (max	29	10	1963	7
0 C (32 F): Frost days (min	33	77	1960	59
-10 C (14 F): Days with min	16	6	1962	2
20 C (68 F): Tropical nights (min	33	109	1970	101
25 C (77 F): Days with min	16	7	1969	6
10 mm (0.39 in): Days with 10 mm or more rain	33	62	1957	32
25 mm (0.98 in): Days with 25 mm or more rain	33	28	1968	13
50 mm (1.97 in): Days with 50 mm or more rain	32	11	1975	5
100 mm (3.94 in): Days with 100 mm or more rain	14	4	1982	2
10 cm (3.9 in): Days with 10 cm or more snowfall	5	1	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	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 1902.

Download the Data

Data for Nitta Yuma 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).

Nitta Yuma Threshold Days by Year (USC00226351)

Key Facts for Nitta Yuma Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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