Niles Threshold Days by Year (USC00145768)

6 fixed thresholds counted per year at Niles (USC00145768): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Niles Thresholds

Niles: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1993 with 39.
Niles: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1967 with 14.
Niles: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1967 with 6.
Niles: days with 10 cm (3.9 in) or more of snowfall in 20 years, most in 1960 with 3.
6 fixed thresholds have at least one qualifying day at Niles.

Days with 10 mm (0.39 in) or more of precipitation

40 years with a qualifying day

Days per year at Niles with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1993.

Days with 10 mm (0.39 in) or more of precipitation per year at Niles
Year	Days	Decade average
1944	26	25.5
1945	25	25.5
1959	27	27
1960	25	22
1961	25	22
1962	26	22
1963	18	22
1964	18	22
1965	27	22
1966	11	22
1967	24	22
1968	22	22
1969	24	22
1970	23	24.7
1971	25	24.7
1972	27	24.7
1973	35	24.7
1974	19	24.7
1975	25	24.7
1976	19	24.7
1977	30	24.7
1978	17	24.7
1979	27	24.7
1980	22	21.9
1981	28	21.9
1982	26	21.9
1983	25	21.9
1985	22	21.9
1986	24	21.9
1987	23	21.9
1988	11	21.9
1989	16	21.9
1990	24	24.4
1991	19	24.4
1992	23	24.4
1993	39	24.4
1994	21	24.4
1995	23	24.4
1996	25	24.4
1997	21	24.4

For each year, a bar from the first to the last day at Niles meeting 10 mm (0.39 in).

First to last qualifying date each year at Niles
Year	First date	Last date
1944	1944-01-27	1944-12-04
1945	1945-02-21	1945-12-24
1959	1959-03-26	1959-12-27
1960	1960-01-14	1960-12-11
1961	1961-04-08	1961-12-09
1962	1962-01-26	1962-11-27
1963	1963-03-04	1963-10-21
1964	1964-03-20	1964-12-10
1965	1965-01-02	1965-12-24
1966	1966-02-09	1966-12-28
1967	1967-03-26	1967-12-17
1968	1968-04-03	1968-12-19
1969	1969-02-15	1969-12-06
1970	1970-04-01	1970-10-09
1971	1971-02-05	1971-11-17
1972	1972-03-15	1972-12-12
1973	1973-02-01	1973-12-24
1974	1974-04-11	1974-10-29
1975	1975-02-04	1975-12-14
1976	1976-03-04	1976-10-27
1977	1977-03-28	1977-11-09
1978	1978-02-13	1978-11-26
1979	1979-01-19	1979-12-28
1980	1980-01-19	1980-12-08
1981	1981-03-25	1981-11-30
1982	1982-03-14	1982-12-28
1983	1983-02-01	1983-12-21
1985	1985-01-11	1985-11-15
1986	1986-03-12	1986-12-08
1987	1987-01-09	1987-12-27
1988	1988-04-01	1988-09-19
1989	1989-05-18	1989-10-27
1990	1990-02-22	1990-11-27
1991	1991-03-17	1991-12-20
1992	1992-01-01	1992-12-15
1993	1993-01-09	1993-12-13
1994	1994-01-27	1994-12-07
1995	1995-01-27	1995-09-21
1996	1996-03-15	1996-11-17
1997	1997-02-21	1997-12-24

Every Fixed Threshold

Fixed thresholds at Niles
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
10 mm (0.39 in): Days with 10 mm or more rain	40	39	1993	21
25 mm (0.98 in): Days with 25 mm or more rain	40	14	1967	10
50 mm (1.97 in): Days with 50 mm or more rain	30	6	1967	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1972	1
10 cm (3.9 in): Days with 10 cm or more snowfall	20	3	1960	1
25 cm (9.8 in): Days with 25 cm or more snowfall	2	2	1983	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

Data for Niles 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).

Niles Threshold Days by Year (USC00145768)

Key Facts for Niles Thresholds

Days with 10 mm (0.39 in) or more of precipitation

Every Fixed Threshold

Download the Data

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