Blacksburg Nwso Weather Records (USC00440766)

Record envelope, standing records and threshold days for Blacksburg Nwso (USC00440766), Virginia, United States, with 75 years of record.

Key Facts for Blacksburg Nwso

Blacksburg Nwso (USC00440766) is a weather station in Virginia, United States at 37.20 latitude and -80.41 longitude, 641 m (2,103 ft) above sea level.
The station reports from 1952 to 2026, 75 years of record.
1,464 records set at Blacksburg Nwso still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Blacksburg Nwso set a daily record precipitation of 37.1 mm (1.5 in) on 4 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Virginia, United States, 37.20 latitude, -80.41 longitude.
Elevation: 641 m (2,103 ft).
Period of record: 1952 to 2026, 75 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

16 days at or beyond a record

The band shows the record high and record low for each calendar day at Blacksburg Nwso. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Blacksburg Nwso, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.8 C (73.0 F)	-27.8 C (-18.0 F)	16.7 C (62.1 F)	-17.8 C (0.0 F)
Feb	26.7 C (80.1 F)	-24.4 C (-11.9 F)	18.9 C (66.0 F)	-15.0 C (5.0 F)
Mar	30.0 C (86.0 F)	-16.7 C (1.9 F)	27.2 C (81.0 F)	-8.3 C (17.1 F)
Apr	35.0 C (95.0 F)	-10.0 C (14.0 F)	30.0 C (86.0 F)	-3.3 C (26.1 F)
May	32.2 C (90.0 F)	-5.0 C (23.0 F)	31.7 C (89.1 F)	-0.6 C (30.9 F)
Jun	35.0 C (95.0 F)	-1.1 C (30.0 F)	32.2 C (90.0 F)	8.3 C (46.9 F)
Jul	37.2 C (99.0 F)	5.0 C (41.0 F)	35.6 C (96.1 F)	12.8 C (55.0 F)
Aug	37.2 C (99.0 F)	2.2 C (36.0 F)	31.7 C (89.1 F)	9.4 C (48.9 F)
Sep	35.6 C (96.1 F)	-5.6 C (21.9 F)	33.9 C (93.0 F)	3.9 C (39.0 F)
Oct	34.4 C (93.9 F)	-10.6 C (12.9 F)	28.9 C (84.0 F)	5.0 C (41.0 F)
Nov	27.8 C (82.0 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	23.9 C (75.0 F)	-23.3 C (-9.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Blacksburg Nwso still stand. 1953 holds the most, with 47.

Standing records at Blacksburg Nwso by the year they were set
Year set	Standing records
1952	1
1953	47
1954	37
1955	17
1956	18
1957	21
1958	11
1959	21
1960	24
1961	18
1962	26
1963	28
1964	23
1965	7
1966	20
1967	38
1968	23
1969	26
1970	24
1971	28
1972	23
1973	18
1974	38
1975	19
1976	28
1977	23
1978	24
1979	20
1980	12
1981	16
1982	17
1983	28
1984	37
1985	33
1986	17
1987	12
1988	32
1989	26
1990	17
1991	18
1992	15
1993	15
1994	6
1995	10
1996	18
1997	21
1998	19
1999	20
2000	11
2001	20
2002	22
2003	9
2004	15
2005	9
2006	10
2007	31
2008	11
2009	13
2010	17
2011	16
2012	15
2013	11
2014	19
2015	18
2016	10
2017	20
2018	31
2019	19
2020	17
2021	3
2022	12
2023	15
2024	16
2025	19
2026	15

All-Time Record Progression

6 new records

6 all-time records were set at Blacksburg Nwso between 21 January 1985 and 22 September 2021. Each dot is a new record.

When Blacksburg Nwso set new all-time records
Date	Kind	Detail
1985-01-21	Record low minimum temperature	Record low minimum temperature -27.8 C (-18.0 F)
1986-01-28	Record low maximum temperature	Record low maximum temperature -16.7 C (1.9 F)
1996-01-07	Record daily snowfall	Record daily snowfall 45.2 cm (17.8 in)
1998-01-28	Record daily snowfall	Record daily snowfall 51.8 cm (20.4 in)
2006-06-27	Record daily precipitation	Record daily precipitation 103.4 mm (4.1 in)
2021-09-22	Record daily precipitation	Record daily precipitation 112.8 mm (4.4 in)

Wettest Day of Each Month

Sep: 112.8 mm (4.4 in)

The wettest day on record for each calendar month at Blacksburg Nwso. The most was 112.8 mm (4.4 in) on 22 September 2021.

Record daily precipitation for each month at Blacksburg Nwso
Month	Record daily precipitation (mm)	Date
Jan	57.4 mm (2.3 in)	4 January 1992
Feb	60.2 mm (2.4 in)	16 February 2025
Mar	74.9 mm (2.9 in)	29 March 2007
Apr	86.9 mm (3.4 in)	22 April 1992
May	74.2 mm (2.9 in)	26 May 1975
Jun	103.4 mm (4.1 in)	27 June 2006
Jul	90.4 mm (3.6 in)	2 July 2021
Aug	87.4 mm (3.4 in)	27 August 1992
Sep	112.8 mm (4.4 in)	22 September 2021
Oct	74.7 mm (2.9 in)	19 October 1966
Nov	74.2 mm (2.9 in)	12 November 2020
Dec	80.8 mm (3.2 in)	29 December 1958

Period of Record Coverage

1952 to 2026

75 years of record at Blacksburg Nwso, 1952 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1952, 1994, 1995, 2026.

Days with data per year at Blacksburg Nwso
Year	Days with data	Share of year	Complete
1952	60	16%	No
1953	365	100%	Yes
1954	360	99%	Yes
1955	363	99%	Yes
1956	366	100%	Yes
1957	359	98%	Yes
1958	364	100%	Yes
1959	365	100%	Yes
1960	365	100%	Yes
1961	362	99%	Yes
1962	362	99%	Yes
1963	364	100%	Yes
1964	365	100%	Yes
1965	334	92%	Yes
1966	363	99%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	363	99%	Yes
1973	365	100%	Yes
1974	360	99%	Yes
1975	364	100%	Yes
1976	363	99%	Yes
1977	362	99%	Yes
1978	364	100%	Yes
1979	362	99%	Yes
1980	363	99%	Yes
1981	363	99%	Yes
1982	362	99%	Yes
1983	363	99%	Yes
1984	366	100%	Yes
1985	362	99%	Yes
1986	361	99%	Yes
1987	361	99%	Yes
1988	364	99%	Yes
1989	329	90%	Yes
1990	364	100%	Yes
1991	360	99%	Yes
1992	366	100%	Yes
1993	356	98%	Yes
1994	264	72%	No
1995	153	42%	No
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	365	100%	Yes
2001	365	100%	Yes
2002	334	92%	Yes
2003	364	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	362	99%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	364	100%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	364	100%	Yes
2026	283	78%	No

Latest Records

Latest records at Blacksburg Nwso
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 2026	Blacksburg Nwso, US	daily rain (Provisional)	37.1 mm (1.5 in)	14.0 mm (0.6 in)	64 years	37 of 100 (Notable)
20 September 2026	Blacksburg Nwso, US	daily high min (Tie, Provisional)	18.3 C (64.9 F)	tie	24 years	3 of 100 (Routine)
18 September 2026	Blacksburg Nwso, US	daily high max (Tie, Provisional)	32.8 C (91.0 F)	tie	72 years	7 of 100 (Routine)
13 September 2026	Blacksburg Nwso, US	daily high min (Provisional)	19.4 C (66.9 F)	0.5 C (0.9 F)	36 years	19 of 100 (Routine)
5 September 2026	Blacksburg Nwso, US	daily high max (Tie, Provisional)	33.3 C (91.9 F)	tie	7 years	2 of 100 (Routine)
4 September 2026	Blacksburg Nwso, US	daily high max (Provisional)	33.9 C (93.0 F)	2.2 C (4.0 F)	72 years	33 of 100 (Routine)
4 September 2026	Blacksburg Nwso, US	daily high min (Tie, Provisional)	19.4 C (66.9 F)	tie	72 years	7 of 100 (Routine)
19 July 2026	Blacksburg Nwso, US	daily rain	41.4 mm (1.6 in)	8.9 mm (0.35 in)	29 years	23 of 100 (Routine)
9 July 2026	Blacksburg Nwso, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	4 years	10 of 100 (Routine)
8 July 2026	Blacksburg Nwso, US	daily high min (Tie)	19.4 C (66.9 F)	tie	72 years	7 of 100 (Routine)
4 July 2026	Blacksburg Nwso, US	daily high max	35.6 C (96.1 F)	1.2 C (2.2 F)	60 years	29 of 100 (Routine)
4 July 2026	Blacksburg Nwso, US	daily high min	19.4 C (66.9 F)	0.5 C (0.9 F)	4 years	9 of 100 (Routine)
3 July 2026	Blacksburg Nwso, US	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	72 years	30 of 100 (Routine)
1 July 2026	Blacksburg Nwso, US	daily high min	20.6 C (69.1 F)	1.2 C (2.2 F)	29 years	19 of 100 (Routine)
19 June 2026	Blacksburg Nwso, US	daily rain	37.8 mm (1.5 in)	21.3 mm (0.8 in)	43 years	39 of 100 (Notable)
13 June 2026	Blacksburg Nwso, US	daily high max	32.2 C (90.0 F)	0.5 C (0.9 F)	72 years	29 of 100 (Routine)
12 June 2026	Blacksburg Nwso, US	daily high min	18.9 C (66.0 F)	0.6 C (1.1 F)	4 years	9 of 100 (Routine)
12 June 2026	Blacksburg Nwso, US	daily high max (Tie)	31.7 C (89.1 F)	tie	40 years	4 of 100 (Routine)
27 May 2026	Blacksburg Nwso, US	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	35 years	19 of 100 (Routine)
24 May 2026	Blacksburg Nwso, US	daily low max	11.7 C (53.1 F)	2.7 C (4.9 F)	8 years	14 of 100 (Routine)

Climate Trend

68 complete years, 1953 to 2025

One stripe for each of 68 complete years at Blacksburg Nwso, 1953 to 2025. Blue stripes are years cooler than the station's own mean of 11.1 C (51.9 F); red stripes are warmer. The coolest year was 1968, at 9.7 C (49.4 F), and the warmest was 2024, at 12.9 C (55.2 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Blacksburg Nwso as warming stripes, 1953 to 2025
Year	Annual mean temperature	Difference from the station mean
1953	12.8 C	+1.74 C
1954	11.7 C	+0.65 C
1955	11.4 C	+0.33 C
1956	11.4 C	+0.36 C
1957	11.7 C	+0.61 C
1958	10.1 C	-0.95 C
1959	11.6 C	+0.52 C
1960	10.2 C	-0.90 C
1961	10.8 C	-0.29 C
1962	10.5 C	-0.62 C
1963	10.2 C	-0.86 C
1964	11.2 C	+0.07 C
1966	10.1 C	-1.02 C
1967	9.8 C	-1.31 C
1968	9.7 C	-1.40 C
1969	9.7 C	-1.38 C
1970	10.3 C	-0.74 C
1971	10.3 C	-0.78 C
1972	9.9 C	-1.15 C
1973	10.6 C	-0.48 C
1974	10.3 C	-0.75 C
1975	11.2 C	+0.10 C
1976	10.4 C	-0.67 C
1977	10.6 C	-0.46 C
1978	10.2 C	-0.86 C
1979	10.2 C	-0.88 C
1980	10.7 C	-0.38 C
1981	10.2 C	-0.84 C
1982	10.9 C	-0.18 C
1983	10.0 C	-1.12 C
1984	11.6 C	+0.48 C
1985	11.0 C	-0.13 C
1986	11.2 C	+0.07 C
1987	11.2 C	+0.11 C
1988	10.3 C	-0.81 C
1990	12.5 C	+1.40 C
1991	12.3 C	+1.24 C
1992	11.2 C	+0.10 C
1993	11.4 C	+0.31 C
1996	10.0 C	-1.11 C
1997	10.3 C	-0.83 C
1998	11.8 C	+0.71 C
1999	11.2 C	+0.14 C
2000	10.6 C	-0.50 C
2001	11.1 C	+0.04 C
2003	10.7 C	-0.38 C
2004	11.4 C	+0.28 C
2005	11.4 C	+0.29 C
2006	11.6 C	+0.56 C
2007	12.0 C	+0.95 C
2008	10.9 C	-0.14 C
2009	11.0 C	-0.11 C
2010	10.9 C	-0.20 C
2011	11.9 C	+0.85 C
2012	11.9 C	+0.82 C
2013	10.5 C	-0.57 C
2014	10.6 C	-0.46 C
2015	12.0 C	+0.90 C
2016	12.2 C	+1.11 C
2017	12.0 C	+0.96 C
2018	11.5 C	+0.41 C
2019	12.3 C	+1.21 C
2020	12.0 C	+0.95 C
2021	12.0 C	+0.90 C
2022	11.6 C	+0.49 C
2023	12.6 C	+1.52 C
2024	12.9 C	+1.81 C
2025	11.5 C	+0.39 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1953 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 68 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Blacksburg Nwso
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1953 to 2025	68	Rise
Mean daily maximum	0.13 C (0.04 to 0.22) per decade	0.2 F (0.1 to 0.4) per decade	1953 to 2025	68	Rise
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1953 to 2025	68	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1952 to 2026

Yearly extremes at Blacksburg Nwso: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1954	32.8 C (91.0 F)	75
Coldest night (TNn)	-27.8 C (-18.0 F)	1985	-17.8 C (0.0 F)	75
Wettest day (Rx1day)	112.8 mm (4.4 in)	2021	55.4 mm (2.2 in)	75
Wettest five days (Rx5day)	239.1 mm (9.4 in)	2006	93.4 mm (3.7 in)	75
Longest dry spell (CDD)	42 days	2000	17 days	75

Hottest day (TXx)

The hottest day of the year at Blacksburg Nwso, 1952 to 2026. The record is 37.2 C (99.0 F) in 1954, marked on the chart; the median year is 32.8 C (91.0 F).

Hottest day (TXx) at Blacksburg Nwso by year
Year	Hottest day (TXx)
1952	21.1 C (70.0 F)
1953	35.6 C (96.1 F)
1954	37.2 C (99.0 F)
1955	33.3 C (91.9 F)
1956	32.2 C (90.0 F)
1957	35.0 C (95.0 F)
1958	32.2 C (90.0 F)
1959	35.6 C (96.1 F)
1960	33.3 C (91.9 F)
1961	31.1 C (88.0 F)
1962	32.2 C (90.0 F)
1963	34.4 C (93.9 F)
1964	33.9 C (93.0 F)
1965	33.3 C (91.9 F)
1966	35.6 C (96.1 F)
1967	30.6 C (87.1 F)
1968	32.2 C (90.0 F)
1969	32.8 C (91.0 F)
1970	32.2 C (90.0 F)
1971	31.7 C (89.1 F)
1972	32.2 C (90.0 F)
1973	32.2 C (90.0 F)
1974	31.1 C (88.0 F)
1975	33.3 C (91.9 F)
1976	31.7 C (89.1 F)
1977	33.9 C (93.0 F)
1978	33.3 C (91.9 F)
1979	31.7 C (89.1 F)
1980	35.6 C (96.1 F)
1981	32.2 C (90.0 F)
1982	31.1 C (88.0 F)
1983	37.2 C (99.0 F)
1984	32.2 C (90.0 F)
1985	32.2 C (90.0 F)
1986	33.3 C (91.9 F)
1987	35.0 C (95.0 F)
1988	36.1 C (97.0 F)
1989	31.1 C (88.0 F)
1990	33.3 C (91.9 F)
1991	33.9 C (93.0 F)
1992	32.2 C (90.0 F)
1993	34.4 C (93.9 F)
1994	32.2 C (90.0 F)
1995	33.9 C (93.0 F)
1996	31.7 C (89.1 F)
1997	32.2 C (90.0 F)
1998	33.3 C (91.9 F)
1999	33.3 C (91.9 F)
2000	31.1 C (88.0 F)
2001	31.7 C (89.1 F)
2002	33.9 C (93.0 F)
2003	30.6 C (87.1 F)
2004	30.6 C (87.1 F)
2005	32.8 C (91.0 F)
2006	32.8 C (91.0 F)
2007	35.6 C (96.1 F)
2008	32.2 C (90.0 F)
2009	30.0 C (86.0 F)
2010	34.4 C (93.9 F)
2011	33.9 C (93.0 F)
2012	35.0 C (95.0 F)
2013	31.7 C (89.1 F)
2014	31.7 C (89.1 F)
2015	31.1 C (88.0 F)
2016	33.9 C (93.0 F)
2017	33.3 C (91.9 F)
2018	32.2 C (90.0 F)
2019	34.4 C (93.9 F)
2020	33.3 C (91.9 F)
2021	32.8 C (91.0 F)
2022	32.8 C (91.0 F)
2023	32.8 C (91.0 F)
2024	35.0 C (95.0 F)
2025	33.3 C (91.9 F)
2026	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Blacksburg Nwso, 1952 to 2026. The record is -27.8 C (-18.0 F) in 1985, marked on the chart; the median year is -17.8 C (0.0 F).

Coldest night (TNn) at Blacksburg Nwso by year
Year	Coldest night (TNn)
1952	-12.2 C (10.0 F)
1953	-13.3 C (8.1 F)
1954	-13.9 C (7.0 F)
1955	-17.8 C (0.0 F)
1956	-13.9 C (7.0 F)
1957	-16.7 C (1.9 F)
1958	-19.4 C (-2.9 F)
1959	-18.3 C (-0.9 F)
1960	-21.7 C (-7.1 F)
1961	-18.9 C (-2.0 F)
1962	-20.6 C (-5.1 F)
1963	-23.9 C (-11.0 F)
1964	-16.7 C (1.9 F)
1965	-18.3 C (-0.9 F)
1966	-23.3 C (-9.9 F)
1967	-19.4 C (-2.9 F)
1968	-20.6 C (-5.1 F)
1969	-20.0 C (-4.0 F)
1970	-24.4 C (-11.9 F)
1971	-20.0 C (-4.0 F)
1972	-23.3 C (-9.9 F)
1973	-20.0 C (-4.0 F)
1974	-16.7 C (1.9 F)
1975	-15.6 C (3.9 F)
1976	-18.3 C (-0.9 F)
1977	-24.4 C (-11.9 F)
1978	-18.9 C (-2.0 F)
1979	-18.9 C (-2.0 F)
1980	-18.9 C (-2.0 F)
1981	-18.9 C (-2.0 F)
1982	-24.4 C (-11.9 F)
1983	-22.2 C (-8.0 F)
1984	-19.4 C (-2.9 F)
1985	-27.8 C (-18.0 F)
1986	-23.3 C (-9.9 F)
1987	-20.0 C (-4.0 F)
1988	-18.3 C (-0.9 F)
1989	-23.3 C (-9.9 F)
1990	-14.4 C (6.1 F)
1991	-16.7 C (1.9 F)
1992	-13.9 C (7.0 F)
1993	-15.6 C (3.9 F)
1994	-23.9 C (-11.0 F)
1995	-17.2 C (1.0 F)
1996	-20.6 C (-5.1 F)
1997	-17.2 C (1.0 F)
1998	-13.3 C (8.1 F)
1999	-16.7 C (1.9 F)
2000	-16.1 C (3.0 F)
2001	-11.7 C (10.9 F)
2002	-18.3 C (-0.9 F)
2003	-15.6 C (3.9 F)
2004	-17.8 C (0.0 F)
2005	-15.0 C (5.0 F)
2006	-13.9 C (7.0 F)
2007	-15.0 C (5.0 F)
2008	-14.4 C (6.1 F)
2009	-20.0 C (-4.0 F)
2010	-17.8 C (0.0 F)
2011	-14.4 C (6.1 F)
2012	-11.1 C (12.0 F)
2013	-13.3 C (8.1 F)
2014	-20.6 C (-5.1 F)
2015	-20.6 C (-5.1 F)
2016	-15.0 C (5.0 F)
2017	-15.0 C (5.0 F)
2018	-18.3 C (-0.9 F)
2019	-16.7 C (1.9 F)
2020	-13.3 C (8.1 F)
2021	-11.1 C (12.0 F)
2022	-20.0 C (-4.0 F)
2023	-10.6 C (12.9 F)
2024	-15.6 C (3.9 F)
2025	-16.7 C (1.9 F)
2026	-17.8 C (0.0 F)

Wettest day (Rx1day)

The wettest day of the year at Blacksburg Nwso, 1952 to 2026. The record is 112.8 mm (4.4 in) in 2021, marked on the chart; the median year is 55.4 mm (2.2 in).

Wettest day (Rx1day) at Blacksburg Nwso by year
Year	Wettest day (Rx1day)
1952	26.7 mm (1.1 in)
1953	30.0 mm (1.2 in)
1954	65.3 mm (2.6 in)
1955	47.0 mm (1.9 in)
1956	56.1 mm (2.2 in)
1957	61.5 mm (2.4 in)
1958	80.8 mm (3.2 in)
1959	86.9 mm (3.4 in)
1960	49.8 mm (2.0 in)
1961	55.4 mm (2.2 in)
1962	54.6 mm (2.1 in)
1963	38.6 mm (1.5 in)
1964	75.7 mm (3.0 in)
1965	41.1 mm (1.6 in)
1966	76.2 mm (3.0 in)
1967	36.8 mm (1.4 in)
1968	73.7 mm (2.9 in)
1969	43.7 mm (1.7 in)
1970	48.3 mm (1.9 in)
1971	50.8 mm (2.0 in)
1972	85.1 mm (3.4 in)
1973	66.0 mm (2.6 in)
1974	50.8 mm (2.0 in)
1975	74.2 mm (2.9 in)
1976	96.5 mm (3.8 in)
1977	67.3 mm (2.6 in)
1978	68.6 mm (2.7 in)
1979	50.8 mm (2.0 in)
1980	46.5 mm (1.8 in)
1981	66.8 mm (2.6 in)
1982	45.7 mm (1.8 in)
1983	45.0 mm (1.8 in)
1984	48.3 mm (1.9 in)
1985	75.2 mm (3.0 in)
1986	31.8 mm (1.3 in)
1987	55.6 mm (2.2 in)
1988	58.7 mm (2.3 in)
1989	64.8 mm (2.6 in)
1990	66.8 mm (2.6 in)
1991	35.8 mm (1.4 in)
1992	87.4 mm (3.4 in)
1993	68.3 mm (2.7 in)
1994	62.5 mm (2.5 in)
1995	29.7 mm (1.2 in)
1996	84.6 mm (3.3 in)
1997	41.9 mm (1.6 in)
1998	58.2 mm (2.3 in)
1999	46.0 mm (1.8 in)
2000	55.4 mm (2.2 in)
2001	52.8 mm (2.1 in)
2002	52.8 mm (2.1 in)
2003	50.0 mm (2.0 in)
2004	89.4 mm (3.5 in)
2005	45.2 mm (1.8 in)
2006	103.4 mm (4.1 in)
2007	74.9 mm (2.9 in)
2008	42.9 mm (1.7 in)
2009	52.3 mm (2.1 in)
2010	52.8 mm (2.1 in)
2011	66.5 mm (2.6 in)
2012	34.0 mm (1.3 in)
2013	76.2 mm (3.0 in)
2014	46.5 mm (1.8 in)
2015	89.4 mm (3.5 in)
2016	71.1 mm (2.8 in)
2017	69.6 mm (2.7 in)
2018	49.3 mm (1.9 in)
2019	53.6 mm (2.1 in)
2020	74.2 mm (2.9 in)
2021	112.8 mm (4.4 in)
2022	54.6 mm (2.1 in)
2023	112.3 mm (4.4 in)
2024	54.1 mm (2.1 in)
2025	60.2 mm (2.4 in)
2026	41.4 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Blacksburg Nwso, 1952 to 2026. The record is 239.1 mm (9.4 in) in 2006, marked on the chart; the median year is 93.4 mm (3.7 in).

Wettest five days (Rx5day) at Blacksburg Nwso by year
Year	Wettest five days (Rx5day)
1952	62.7 mm (2.5 in)
1953	57.9 mm (2.3 in)
1954	89.9 mm (3.5 in)
1955	70.8 mm (2.8 in)
1956	68.3 mm (2.7 in)
1957	103.9 mm (4.1 in)
1958	94.6 mm (3.7 in)
1959	143.3 mm (5.6 in)
1960	57.2 mm (2.3 in)
1961	80.4 mm (3.2 in)
1962	62.5 mm (2.5 in)
1963	53.3 mm (2.1 in)
1964	99.6 mm (3.9 in)
1965	86.5 mm (3.4 in)
1966	91.7 mm (3.6 in)
1967	113.5 mm (4.5 in)
1968	98.2 mm (3.9 in)
1969	75.4 mm (3.0 in)
1970	91.4 mm (3.6 in)
1971	87.9 mm (3.5 in)
1972	131.6 mm (5.2 in)
1973	96.5 mm (3.8 in)
1974	74.6 mm (2.9 in)
1975	90.3 mm (3.6 in)
1976	155.5 mm (6.1 in)
1977	110.3 mm (4.3 in)
1978	127.5 mm (5.0 in)
1979	79.1 mm (3.1 in)
1980	64.5 mm (2.5 in)
1981	94.8 mm (3.7 in)
1982	77.8 mm (3.1 in)
1983	92.0 mm (3.6 in)
1984	71.9 mm (2.8 in)
1985	111.3 mm (4.4 in)
1986	84.9 mm (3.3 in)
1987	123.4 mm (4.9 in)
1988	76.9 mm (3.0 in)
1989	93.4 mm (3.7 in)
1990	97.8 mm (3.9 in)
1991	84.8 mm (3.3 in)
1992	156.4 mm (6.2 in)
1993	83.1 mm (3.3 in)
1994	102.4 mm (4.0 in)
1995	47.0 mm (1.9 in)
1996	100.1 mm (3.9 in)
1997	85.6 mm (3.4 in)
1998	91.0 mm (3.6 in)
1999	69.9 mm (2.8 in)
2000	111.1 mm (4.4 in)
2001	91.3 mm (3.6 in)
2002	62.2 mm (2.4 in)
2003	112.4 mm (4.4 in)
2004	116.6 mm (4.6 in)
2005	72.9 mm (2.9 in)
2006	239.1 mm (9.4 in)
2007	118.3 mm (4.7 in)
2008	75.7 mm (3.0 in)
2009	98.5 mm (3.9 in)
2010	74.4 mm (2.9 in)
2011	102.3 mm (4.0 in)
2012	54.7 mm (2.2 in)
2013	132.4 mm (5.2 in)
2014	99.3 mm (3.9 in)
2015	167.2 mm (6.6 in)
2016	145.3 mm (5.7 in)
2017	90.3 mm (3.6 in)
2018	83.9 mm (3.3 in)
2019	104.2 mm (4.1 in)
2020	143.0 mm (5.6 in)
2021	119.7 mm (4.7 in)
2022	105.2 mm (4.1 in)
2023	135.2 mm (5.3 in)
2024	96.7 mm (3.8 in)
2025	102.1 mm (4.0 in)
2026	109.5 mm (4.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Blacksburg Nwso, 1952 to 2026. The record is 42 days in 2000, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Blacksburg Nwso by year
Year	Longest dry spell (CDD)
1952	9 days
1953	30 days
1954	20 days
1955	15 days
1956	16 days
1957	14 days
1958	23 days
1959	20 days
1960	15 days
1961	13 days
1962	16 days
1963	30 days
1964	22 days
1965	23 days
1966	17 days
1967	18 days
1968	18 days
1969	17 days
1970	20 days
1971	15 days
1972	14 days
1973	15 days
1974	17 days
1975	17 days
1976	15 days
1977	18 days
1978	26 days
1979	16 days
1980	20 days
1981	15 days
1982	11 days
1983	18 days
1984	23 days
1985	13 days
1986	17 days
1987	14 days
1988	16 days
1989	17 days
1990	17 days
1991	22 days
1992	25 days
1993	20 days
1994	26 days
1995	11 days
1996	11 days
1997	19 days
1998	21 days
1999	13 days
2000	42 days
2001	29 days
2002	19 days
2003	14 days
2004	15 days
2005	27 days
2006	11 days
2007	34 days
2008	17 days
2009	17 days
2010	17 days
2011	14 days
2012	13 days
2013	18 days
2014	14 days
2015	15 days
2016	24 days
2017	16 days
2018	9 days
2019	16 days
2020	12 days
2021	21 days
2022	13 days
2023	19 days
2024	39 days
2025	19 days
2026	12 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

68 years with a frost

Across 68 years with a frost, the median last spring frost at Blacksburg Nwso falls on 29 April and the median first autumn frost on 10 October, which leaves a median of 162 days between them.

In 1993 to 2025 the median growing season was 176 days. That is 23 days more than in 1953 to 1983.

Fitted over all years, the growing season changes by +4.6 days per decade at this station.

Frost dates and growing season at Blacksburg Nwso
Measure	Median, all years	Earliest period (1953 to 1983)	Recent period (1993 to 2025)	Recent against earliest	Fitted trend
Last spring frost	29 April	6 May	25 April	11 days earlier	-1.3 days per decade
First autumn frost	10 October	6 October	21 October	15 days later	+3.3 days per decade
Growing days	162 days	153 days	176 days	23 days more	+4.6 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

71 years, 1953 to 2025

A day with at least 58.4 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 119.6 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Blacksburg Nwso: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	58.4 mm (2.3 in)
5 years	75.2 mm (3.0 in)
10 years	86.1 mm (3.4 in)
25 years	99.8 mm (3.9 in)
50 years	109.8 mm (4.3 in)
100 years	119.6 mm (4.7 in)	Longer than the 71 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 71 years of values from 1953 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 112.8 mm (4.4 in) in 2021; 112.3 mm (4.4 in) in 2023; 103.4 mm (4.1 in) in 2006.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Blacksburg Nwso had a mean temperature of 11.8 C (53.3 F) and 1,116.6 mm (44.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Gary (United States, 102 km away), Marion (United States, 107 km away) and Fletcher 2 NE (United States, 269 km away).

Climate twins of Blacksburg Nwso: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Gary	United States	102 km (63 mi)	11.7 C (53.0 F)	1,017.0 mm (40.0 in)	0.72
Marion	United States	107 km (66 mi)	11.5 C (52.8 F)	1,123.4 mm (44.2 in)	0.73
Fletcher 2 NE	United States	269 km (167 mi)	11.5 C (52.7 F)	1,175.8 mm (46.3 in)	0.75

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Blacksburg Nwso standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).