Blacksburg Nwso Threshold Days by Year (USC00440766)

15 fixed thresholds counted per year at Blacksburg Nwso (USC00440766): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blacksburg Nwso Thresholds

Blacksburg Nwso: days with a maximum temperature at or above 30 C (86 F) in 72 years, most in 2019 with 65.
Blacksburg Nwso: days with a maximum temperature at or below 0 C (32 F) in 72 years, most in 1977 with 42.
Blacksburg Nwso: days with 10 mm (0.39 in) or more of precipitation in 72 years, most in 1971 with 49.
Blacksburg Nwso: days with 25 mm (0.98 in) or more of precipitation in 72 years, most in 2020 with 19.
15 fixed thresholds have at least one qualifying day at Blacksburg Nwso.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at Blacksburg Nwso with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 65 in 2019.

Days at or above 30 C (86 F) per year at Blacksburg Nwso
Year	Days	Decade average
1953	63	34.7
1954	48	34.7
1955	34	34.7
1956	19	34.7
1957	38	34.7
1958	19	34.7
1959	22	34.7
1960	18	19
1961	11	19
1962	10	19
1963	19	19
1964	27	19
1965	19	19
1966	33	19
1967	2	19
1968	24	19
1969	27	19
1970	15	16.1
1971	4	16.1
1972	8	16.1
1973	17	16.1
1974	7	16.1
1975	28	16.1
1976	14	16.1
1977	30	16.1
1978	31	16.1
1979	7	16.1
1980	29	29.3
1981	24	29.3
1982	14	29.3
1983	50	29.3
1984	28	29.3
1985	27	29.3
1986	27	29.3
1987	47	29.3
1988	39	29.3
1989	8	29.3
1990	24	26.3
1991	38	26.3
1992	16	26.3
1993	50	26.3
1996	9	26.3
1997	16	26.3
1998	27	26.3
1999	30	26.3
2000	9	19.4
2001	9	19.4
2002	44	19.4
2003	9	19.4
2004	4	19.4
2005	21	19.4
2006	22	19.4
2007	48	19.4
2008	21	19.4
2009	7	19.4
2010	50	31.6
2011	38	31.6
2012	29	31.6
2013	5	31.6
2014	16	31.6
2015	27	31.6
2016	42	31.6
2017	19	31.6
2018	25	31.6
2019	65	31.6
2020	32	31.6
2021	23	31.6
2022	34	31.6
2023	21	31.6
2024	41	31.6
2025	32	31.6
2026	38	31.6

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

First to last qualifying date each year at Blacksburg Nwso
Year	First date	Last date
1953	1953-05-23	1953-10-01
1954	1954-05-03	1954-10-06
1955	1955-05-28	1955-09-21
1956	1956-05-14	1956-09-01
1957	1957-04-25	1957-09-03
1958	1958-06-10	1958-09-18
1959	1959-05-30	1959-08-27
1960	1960-07-23	1960-09-06
1961	1961-06-03	1961-09-13
1962	1962-05-18	1962-09-02
1963	1963-05-10	1963-08-25
1964	1964-06-10	1964-09-12
1965	1965-06-24	1965-09-22
1966	1966-06-10	1966-08-23
1967	1967-06-17	1967-08-04
1968	1968-06-24	1968-08-26
1969	1969-05-31	1969-08-10
1970	1970-06-19	1970-09-26
1971	1971-06-07	1971-07-11
1972	1972-07-19	1972-08-28
1973	1973-06-11	1973-09-05
1974	1974-06-10	1974-08-29
1975	1975-06-18	1975-09-06
1976	1976-04-19	1976-08-27
1977	1977-07-06	1977-09-03
1978	1978-06-19	1978-09-22
1979	1979-07-16	1979-08-11
1980	1980-06-28	1980-09-23
1981	1981-06-15	1981-08-17
1982	1982-05-14	1982-09-16
1983	1983-06-26	1983-09-19
1984	1984-06-05	1984-09-22
1985	1985-05-15	1985-09-10
1986	1986-06-23	1986-09-21
1987	1987-05-31	1987-08-28
1988	1988-06-01	1988-08-28
1989	1989-06-01	1989-09-11
1990	1990-06-09	1990-09-08
1991	1991-05-30	1991-09-18
1992	1992-07-01	1992-08-26
1993	1993-06-09	1993-09-16
1996	1996-05-19	1996-08-23
1997	1997-06-25	1997-09-03
1998	1998-05-31	1998-09-18
1999	1999-06-08	1999-09-04
2000	2000-05-14	2000-08-10
2001	2001-06-21	2001-08-12
2002	2002-04-17	2002-09-11
2003	2003-06-26	2003-08-29
2004	2004-07-11	2004-08-29
2005	2005-06-06	2005-09-25
2006	2006-05-30	2006-08-29
2007	2007-05-02	2007-10-10
2008	2008-06-05	2008-09-14
2009	2009-04-26	2009-08-18
2010	2010-04-03	2010-09-25
2011	2011-05-31	2011-09-05
2012	2012-05-04	2012-09-02
2013	2013-07-16	2013-07-20
2014	2014-05-13	2014-09-03
2015	2015-06-12	2015-09-05
2016	2016-06-12	2016-09-25
2017	2017-04-30	2017-09-28
2018	2018-06-18	2018-09-07
2019	2019-05-19	2019-10-04
2020	2020-03-29	2020-08-29
2021	2021-06-22	2021-08-30
2022	2022-05-21	2022-08-30
2023	2023-07-03	2023-09-08
2024	2024-05-03	2024-09-23
2025	2025-06-22	2025-08-18
2026	2026-04-16	2026-09-18

Every Fixed Threshold

Fixed thresholds at Blacksburg Nwso
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	65	2019	38
35 C (95 F): Days	13	5	1953	2
90 F (32.2 C): Days	55	27	1983	12
0 C (32 F): Ice days (max	72	42	1977	18
0 C (32 F): Frost days (min	71	158	1983	75
-10 C (14 F): Days with min	71	46	1978	18
-20 C (-4 F): Days with min	21	4	1962	1
20 C (68 F): Tropical nights (min	43	10	2010	4
10 mm (0.39 in): Days with 10 mm or more rain	72	49	1971	25
25 mm (0.98 in): Days with 25 mm or more rain	72	19	2020	9
50 mm (1.97 in): Days with 50 mm or more rain	50	5	2020	1
100 mm (3.94 in): Days with 100 mm or more rain	3	1	2006	1
10 cm (3.9 in): Days with 10 cm or more snowfall	50	8	1987	1
25 cm (9.8 in): Days with 25 cm or more snowfall	15	2	1969	2
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1998	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

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Data for Blacksburg Nwso 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).

Blacksburg Nwso Threshold Days by Year (USC00440766)

Key Facts for Blacksburg Nwso Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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