Nephi Threshold Days by Year (USC00426135)

16 fixed thresholds counted per year at Nephi (USC00426135): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nephi Thresholds

Nephi: days with 10 mm (0.39 in) or more of precipitation in 90 years, most in 1983 with 20.
Nephi: nights with a minimum temperature at or below 0 C (32 F) in 82 years, most in 2002 with 189.
Nephi: nights with a minimum temperature at or below -10 C (14 F) in 82 years, most in 1964 with 61.
Nephi: days with a maximum temperature at or above 30 C (86 F) in 80 years, most in 1952 with 116.
16 fixed thresholds have at least one qualifying day at Nephi.

Days at or above 30 C (86 F)

80 years with a qualifying day

Days per year at Nephi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 1952.

Days at or above 30 C (86 F) per year at Nephi
Year	Days	Decade average
1943	93	88.5
1944	84	88.5
1945	75	88.5
1946	91	88.5
1947	90	88.5
1949	98	88.5
1950	104	94.6
1951	94	94.6
1952	116	94.6
1953	105	94.6
1954	87	94.6
1955	83	94.6
1956	75	94.6
1957	84	94.6
1958	109	94.6
1959	89	94.6
1960	94	75.2
1961	82	75.2
1962	91	75.2
1963	57	75.2
1964	67	75.2
1965	55	75.2
1966	91	75.2
1967	72	75.2
1968	59	75.2
1969	84	75.2
1970	70	80.2
1971	78	80.2
1972	70	80.2
1973	72	80.2
1974	90	80.2
1975	60	80.2
1976	84	80.2
1977	99	80.2
1979	99	80.2
1980	86	85.5
1981	93	85.5
1982	74	85.5
1983	75	85.5
1984	78	85.5
1985	76	85.5
1986	89	85.5
1987	90	85.5
1988	100	85.5
1989	94	85.5
1990	92	76.4
1991	71	76.4
1992	74	76.4
1993	65	76.4
1994	100	76.4
1995	73	76.4
1996	95	76.4
1997	55	76.4
1998	61	76.4
1999	78	76.4
2000	75	75.8
2001	89	75.8
2002	88	75.8
2003	87	75.8
2004	64	75.8
2005	60	75.8
2007	84	75.8
2009	59	75.8
2010	64	70.5
2011	57	70.5
2012	74	70.5
2013	73	70.5
2014	56	70.5
2015	69	70.5
2016	75	70.5
2017	78	70.5
2018	86	70.5
2019	73	70.5
2020	95	82.7
2021	82	82.7
2022	90	82.7
2023	52	82.7
2024	89	82.7
2025	89	82.7
2026	82	82.7

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

First to last qualifying date each year at Nephi
Year	First date	Last date
1943	1943-05-27	1943-10-01
1944	1944-06-20	1944-10-08
1945	1945-06-19	1945-10-08
1946	1946-06-03	1946-09-29
1947	1947-05-02	1947-10-09
1949	1949-04-24	1949-10-05
1950	1950-04-22	1950-10-23
1951	1951-05-06	1951-10-10
1952	1952-05-03	1952-10-24
1953	1953-06-10	1953-10-11
1954	1954-05-08	1954-09-23
1955	1955-05-22	1955-09-17
1956	1956-05-17	1956-10-08
1957	1957-06-03	1957-10-01
1958	1958-05-19	1958-10-18
1959	1959-05-13	1959-09-14
1960	1960-05-11	1960-09-29
1961	1961-05-23	1961-09-07
1962	1962-06-11	1962-09-27
1963	1963-05-23	1963-10-08
1964	1964-05-17	1964-09-14
1965	1965-06-08	1965-09-02
1966	1966-05-05	1966-09-26
1967	1967-05-23	1967-09-22
1968	1968-05-30	1968-09-11
1969	1969-05-25	1969-09-30
1970	1970-05-18	1970-09-12
1971	1971-06-15	1971-09-14
1972	1972-05-17	1972-09-05
1973	1973-06-07	1973-09-14
1974	1974-05-27	1974-09-11
1975	1975-06-07	1975-09-08
1976	1976-05-15	1976-09-10
1977	1977-06-01	1977-09-13
1979	1979-05-14	1979-10-07
1980	1980-04-19	1980-09-30
1981	1981-05-01	1981-09-27
1982	1982-05-26	1982-09-23
1983	1983-05-26	1983-09-18
1984	1984-05-13	1984-09-19
1985	1985-05-02	1985-09-03
1986	1986-05-03	1986-09-08
1987	1987-04-17	1987-10-04
1988	1988-05-15	1988-10-04
1989	1989-05-06	1989-10-13
1990	1990-04-15	1990-09-23
1991	1991-05-30	1991-09-26
1992	1992-05-18	1992-10-02
1993	1993-05-12	1993-10-04
1994	1994-05-29	1994-09-28
1995	1995-06-12	1995-09-17
1996	1996-05-12	1996-09-10
1997	1997-05-16	1997-09-08
1998	1998-06-22	1998-09-17
1999	1999-05-28	1999-09-09
2000	2000-05-04	2000-09-17
2001	2001-05-12	2001-09-21
2002	2002-05-29	2002-09-24
2003	2003-05-22	2003-10-01
2004	2004-06-02	2004-09-17
2005	2005-05-20	2005-09-20
2007	2007-05-11	2007-09-05
2009	2009-05-18	2009-09-12
2010	2010-06-06	2010-10-02
2011	2011-06-15	2011-09-30
2012	2012-05-21	2012-09-09
2013	2013-05-13	2013-09-07
2014	2014-05-27	2014-09-18
2015	2015-05-31	2015-09-26
2016	2016-06-02	2016-09-19
2017	2017-06-03	2017-09-12
2018	2018-06-03	2018-09-18
2019	2019-06-13	2019-09-15
2020	2020-05-28	2020-09-25
2021	2021-05-06	2021-09-27
2022	2022-05-16	2022-09-27
2023	2023-06-19	2023-09-09
2024	2024-06-06	2024-10-04
2025	2025-05-28	2025-09-25
2026	2026-03-20	2026-08-27

Every Fixed Threshold

Fixed thresholds at Nephi
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	80	116	1952	82
35 C (95 F): Days	80	47	1950	49
40 C (104 F): Days	14	5	2002	3
90 F (32.2 C): Days	80	88	1977	68
100 F (37.8 C): Days	57	16	1960	14
110 F (43.3 C): Days	1	1	1970	1
0 C (32 F): Ice days (max	80	49	2013	1
0 C (32 F): Frost days (min	82	189	2002	53
-10 C (14 F): Days with min	82	61	1964	4
-20 C (-4 F): Days with min	43	17	1949	1
20 C (68 F): Tropical nights (min	67	21	2007	21
25 C (77 F): Days with min	1	1	2002	1
10 mm (0.39 in): Days with 10 mm or more rain	90	20	1983	2
25 mm (0.98 in): Days with 25 mm or more rain	44	3	1908	1
10 cm (3.9 in): Days with 10 cm or more snowfall	63	12	1983	1
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	1944	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

Data for Nephi 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Nephi Threshold Days by Year (USC00426135)

Key Facts for Nephi Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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