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Built 2026-10-19 (19 October 2026)

Blue Ridge Rs Threshold Days by Year (USC00020871)

14 fixed thresholds counted per year at Blue Ridge Rs (USC00020871): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blue Ridge Rs Thresholds

  • Blue Ridge Rs: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1969 with 23.
  • Blue Ridge Rs: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1978 with 8.
  • Blue Ridge Rs: days with 10 cm (3.9 in) or more of snowfall in 45 years, most in 1973 with 14.
  • Blue Ridge Rs: days with a maximum temperature at or above 30 C (86 F) in 32 years, most in 2020 with 60.
  • 14 fixed thresholds have at least one qualifying day at Blue Ridge Rs.
32 years with a qualifying day
Days at or above 30 C (86 F) per year at Blue Ridge Rs Days per year at Blue Ridge Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2020. 02040601968: 191969: 151970: 281971: 261973: 261974: 381977: 231978: 301979: 351980: 321981: 291983: 102006: 162007: 212008: 232009: 192010: 102011: 172012: 232013: 152014: 112015: 172016: 302017: 322018: 462019: 322020: 602021: 372022: 282023: 362024: 512026: 5519681973197920062010201420182022
Days per year at Blue Ridge Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 2020.
Days at or above 30 C (86 F) per year at Blue Ridge Rs
YearDaysDecade average
19681917
19691517
19702829.4
19712629.4
19732629.4
19743829.4
19772329.4
19783029.4
19793529.4
19803223.7
19812923.7
19831023.7
20061619.8
20072119.8
20082319.8
20091919.8
20101023.3
20111723.3
20122323.3
20131523.3
20141123.3
20151723.3
20163023.3
20173223.3
20184623.3
20193223.3
20206044.5
20213744.5
20222844.5
20233644.5
20245144.5
20265544.5
First to last qualifying date each year at Blue Ridge Rs For each year, a bar from the first to the last day at Blue Ridge Rs meeting 30 C (86 F). 1968: 17 June 1968 to 30 August 19681969: 30 June 1969 to 10 August 19691970: 18 June 1970 to 30 August 19701971: 16 June 1971 to 13 September 19711973: 9 June 1973 to 6 September 19731974: 12 June 1974 to 10 September 19741977: 31 May 1977 to 8 September 19771978: 10 June 1978 to 4 September 19781979: 26 June 1979 to 13 September 19791980: 17 June 1980 to 19 September 19801981: 7 June 1981 to 27 August 19811983: 5 July 1983 to 3 September 19832006: 5 June 2006 to 26 July 20062007: 16 June 2007 to 14 August 20072008: 19 May 2008 to 26 August 20082009: 1 July 2009 to 30 August 20092010: 7 June 2010 to 20 July 20102011: 23 June 2011 to 1 September 20112012: 2 June 2012 to 15 August 20122013: 7 June 2013 to 10 July 20132014: 3 June 2014 to 18 August 20142015: 18 June 2015 to 20 August 20152016: 3 June 2016 to 16 August 20162017: 8 June 2017 to 6 September 20172018: 9 May 2018 to 21 August 20182019: 29 June 2019 to 1 September 20192020: 28 May 2020 to 25 September 20202021: 4 June 2021 to 9 September 20212022: 8 June 2022 to 8 September 20222023: 27 June 2023 to 10 September 20232024: 6 June 2024 to 5 October 20242026: 21 March 2026 to 11 September 202619681973197920062010201420182022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Blue Ridge Rs meeting 30 C (86 F).
First to last qualifying date each year at Blue Ridge Rs
YearFirst dateLast date
19681968-06-171968-08-30
19691969-06-301969-08-10
19701970-06-181970-08-30
19711971-06-161971-09-13
19731973-06-091973-09-06
19741974-06-121974-09-10
19771977-05-311977-09-08
19781978-06-101978-09-04
19791979-06-261979-09-13
19801980-06-171980-09-19
19811981-06-071981-08-27
19831983-07-051983-09-03
20062006-06-052006-07-26
20072007-06-162007-08-14
20082008-05-192008-08-26
20092009-07-012009-08-30
20102010-06-072010-07-20
20112011-06-232011-09-01
20122012-06-022012-08-15
20132013-06-072013-07-10
20142014-06-032014-08-18
20152015-06-182015-08-20
20162016-06-032016-08-16
20172017-06-082017-09-06
20182018-05-092018-08-21
20192019-06-292019-09-01
20202020-05-282020-09-25
20212021-06-042021-09-09
20222022-06-082022-09-08
20232023-06-272023-09-10
20242024-06-062024-10-05
20262026-03-212026-09-11

Every Fixed Threshold

Fixed thresholds at Blue Ridge Rs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3260202055
35 C (95 F): Days12720231
90 F (32.2 C): Days3228202022
0 C (32 F): Ice days (max301920132
0 C (32 F): Frost days (min28219197198
-10 C (14 F): Days with min2869197911
-20 C (-4 F): Days with min19819712
-30 C (-22 F): Days with min1119711
10 mm (0.39 in): Days with 10 mm or more rain472319698
25 mm (0.98 in): Days with 25 mm or more rain47819783
50 mm (1.97 in): Days with 50 mm or more rain15220081
10 cm (3.9 in): Days with 10 cm or more snowfall451419732
25 cm (9.8 in): Days with 25 cm or more snowfall24320101
50 cm (19.7 in): Days with 50 cm or more snowfall5120061

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.

Download the Data

  • Data for Blue Ridge Rs 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 . Last revised (2026-10-17).