Rowlesburg 1 Threshold Days by Year (USC00467785)

15 fixed thresholds counted per year at Rowlesburg 1 (USC00467785): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rowlesburg 1 Thresholds

Rowlesburg 1: days with 10 mm (0.39 in) or more of precipitation in 113 years, most in 1956 with 67.
Rowlesburg 1: days with 25 mm (0.98 in) or more of precipitation in 113 years, most in 1996 with 23.
Rowlesburg 1: days with 50 mm (1.97 in) or more of precipitation in 70 years, most in 1945 with 4.
Rowlesburg 1: days with a maximum temperature at or above 30 C (86 F) in 66 years, most in 1959 with 79.
15 fixed thresholds have at least one qualifying day at Rowlesburg 1.

Days at or above 30 C (86 F)

66 years with a qualifying day

Days per year at Rowlesburg 1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1959.

Days at or above 30 C (86 F) per year at Rowlesburg 1
Year	Days	Decade average
1943	58	51.1
1944	66	51.1
1945	54	51.1
1946	45	51.1
1947	49	51.1
1948	29	51.1
1949	57	51.1
1950	27	53.5
1951	52	53.5
1952	58	53.5
1953	68	53.5
1954	48	53.5
1955	63	53.5
1956	34	53.5
1957	65	53.5
1958	41	53.5
1959	79	53.5
1960	47	35.7
1961	34	35.7
1962	31	35.7
1963	19	35.7
1964	42	35.7
1965	42	35.7
1966	46	35.7
1967	19	35.7
1968	42	35.7
1969	35	35.7
1970	32	23.6
1971	23	23.6
1972	13	23.6
1973	30	23.6
1974	11	23.6
1975	22	23.6
1976	16	23.6
1977	38	23.6
1978	41	23.6
1979	10	23.6
1980	15	15.4
1981	11	15.4
1982	9	15.4
1983	34	15.4
1984	3	15.4
1985	11	15.4
1986	13	15.4
1987	32	15.4
1989	11	15.4
1990	9	23.1
1991	41	23.1
1992	1	23.1
1993	33	23.1
1994	16	23.1
1996	16	23.1
1997	19	23.1
1998	25	23.1
1999	48	23.1
2000	9	22.1
2001	16	22.1
2002	48	22.1
2003	12	22.1
2004	7	22.1
2005	41	22.1
2006	24	22.1
2007	34	22.1
2009	8	22.1
2015	19	29.5
2016	40	29.5

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

First to last qualifying date each year at Rowlesburg 1
Year	First date	Last date
1943	1943-05-11	1943-09-07
1944	1944-05-02	1944-10-06
1945	1945-05-14	1945-09-28
1946	1946-05-15	1946-10-13
1947	1947-05-23	1947-10-23
1948	1948-05-10	1948-09-18
1949	1949-05-05	1949-10-12
1950	1950-05-05	1950-10-17
1951	1951-05-16	1951-10-05
1952	1952-06-06	1952-10-01
1953	1953-05-30	1953-10-04
1954	1954-04-21	1954-10-14
1955	1955-05-04	1955-10-07
1956	1956-05-11	1956-09-13
1957	1957-04-24	1957-09-22
1958	1958-05-31	1958-09-26
1959	1959-05-06	1959-10-06
1960	1960-04-23	1960-09-09
1961	1961-05-14	1961-09-25
1962	1962-04-27	1962-09-13
1963	1963-05-09	1963-08-01
1964	1964-05-19	1964-09-17
1965	1965-05-02	1965-09-22
1966	1966-05-23	1966-09-03
1967	1967-06-09	1967-08-16
1968	1968-06-06	1968-09-24
1969	1969-05-16	1969-09-07
1970	1970-04-30	1970-09-27
1971	1971-05-19	1971-09-11
1972	1972-06-16	1972-08-27
1973	1973-06-05	1973-09-06
1974	1974-05-15	1974-08-28
1975	1975-05-21	1975-08-27
1976	1976-04-18	1976-09-14
1977	1977-05-18	1977-09-04
1978	1978-05-26	1978-09-21
1979	1979-05-07	1979-08-10
1980	1980-06-29	1980-09-05
1981	1981-06-16	1981-08-29
1982	1982-05-17	1982-09-14
1983	1983-06-14	1983-09-12
1984	1984-07-15	1984-08-11
1985	1985-04-22	1985-09-10
1986	1986-04-29	1986-08-17
1987	1987-05-30	1987-08-22
1989	1989-06-02	1989-09-11
1990	1990-04-27	1990-08-29
1991	1991-05-16	1991-09-17
1992	1992-07-15	1992-07-15
1993	1993-05-11	1993-09-15
1994	1994-06-14	1994-08-16
1996	1996-05-19	1996-09-06
1997	1997-06-22	1997-09-03
1998	1998-05-15	1998-09-19
1999	1999-05-12	1999-09-30
2000	2000-05-08	2000-09-11
2001	2001-04-24	2001-09-10
2002	2002-04-17	2002-09-21
2003	2003-06-26	2003-09-15
2004	2004-05-23	2004-08-30
2005	2005-05-12	2005-10-07
2006	2006-05-30	2006-08-27
2007	2007-05-10	2007-10-06
2009	2009-04-26	2009-08-18
2015	2015-05-08	2015-09-10
2016	2016-05-28	2016-09-24

Every Fixed Threshold

Fixed thresholds at Rowlesburg 1
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	66	79	1959	40
35 C (95 F): Days	18	11	1944	2
90 F (32.2 C): Days	51	38	1944	8
100 F (37.8 C): Days	1	1	1953	1
0 C (32 F): Ice days (max	66	41	1979	28
0 C (32 F): Frost days (min	62	163	1976	113
-10 C (14 F): Days with min	62	46	1977	26
-20 C (-4 F): Days with min	38	14	1977	6
20 C (68 F): Tropical nights (min	53	18	2016	18
10 mm (0.39 in): Days with 10 mm or more rain	113	67	1956	37
25 mm (0.98 in): Days with 25 mm or more rain	113	23	1996	10
50 mm (1.97 in): Days with 50 mm or more rain	70	4	1945	2
100 mm (3.94 in): Days with 100 mm or more rain	4	1	1912	1
10 cm (3.9 in): Days with 10 cm or more snowfall	59	10	1968	20
25 cm (9.8 in): Days with 25 cm or more snowfall	12	2	1999	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 Rowlesburg 1 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).

Rowlesburg 1 Threshold Days by Year (USC00467785)

Key Facts for Rowlesburg 1 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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