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Built 2026-10-19 (19 October 2026)

Radford Threshold Days by Year (USC00446997)

4 fixed thresholds counted per year at Radford (USC00446997): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Radford Thresholds

  • Radford: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1909 with 47.
  • Radford: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1909 with 16.
  • Radford: days with 50 mm (1.97 in) or more of precipitation in 20 years, most in 1901 with 4.
  • Radford: days with 10 cm (3.9 in) or more of snowfall in 2 years, most in 1936 with 2.
  • 4 fixed thresholds have at least one qualifying day at Radford.
31 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Radford Days per year at Radford with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1909. 02040601899: 361900: 251901: 441902: 211903: 191904: 191906: 391907: 451909: 471911: 371912: 401913: 391914: 351915: 391916: 351922: 301923: 291925: 111926: 311927: 341928: 251929: 281930: 201931: 331933: 261934: 281935: 381936: 371938: 251939: 231940: 3718991903190919141923192819331938
Days per year at Radford with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 47 in 1909.
Days with 10 mm (0.39 in) or more of precipitation per year at Radford
YearDaysDecade average
18993636
19002532.4
19014432.4
19022132.4
19031932.4
19041932.4
19063932.4
19074532.4
19094732.4
19113737.5
19124037.5
19133937.5
19143537.5
19153937.5
19163537.5
19223026.9
19232926.9
19251126.9
19263126.9
19273426.9
19282526.9
19292826.9
19302028.8
19313328.8
19332628.8
19342828.8
19353828.8
19363728.8
19382528.8
19392328.8
19403737
First to last qualifying date each year at Radford For each year, a bar from the first to the last day at Radford meeting 10 mm (0.39 in). 1899: 6 January 1899 to 24 December 18991900: 12 January 1900 to 5 December 19001901: 11 January 1901 to 30 December 19011902: 28 February 1902 to 13 December 19021903: 3 January 1903 to 17 September 19031904: 29 January 1904 to 13 November 19041906: 3 January 1906 to 31 December 19061907: 4 January 1907 to 30 December 19071909: 5 January 1909 to 14 December 19091911: 1 January 1911 to 26 December 19111912: 21 February 1912 to 24 December 19121913: 3 January 1913 to 26 December 19131914: 1 January 1914 to 26 December 19141915: 7 January 1915 to 29 December 19151916: 7 January 1916 to 22 December 19161922: 11 January 1922 to 17 December 19221923: 1 January 1923 to 5 December 19231925: 1 January 1925 to 13 November 19251926: 4 January 1926 to 28 December 19261927: 14 February 1927 to 31 December 19271928: 19 January 1928 to 14 December 19281929: 10 January 1929 to 23 December 19291930: 30 January 1930 to 18 December 19301931: 17 February 1931 to 22 December 19311933: 9 January 1933 to 26 December 19331934: 2 January 1934 to 1 December 19341935: 1 January 1935 to 29 December 19351936: 2 January 1936 to 30 December 19361938: 7 January 1938 to 27 December 19381939: 6 January 1939 to 24 December 19391940: 8 January 1940 to 28 December 194018991903190919141923192819331938JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Radford meeting 10 mm (0.39 in).
First to last qualifying date each year at Radford
YearFirst dateLast date
18991899-01-061899-12-24
19001900-01-121900-12-05
19011901-01-111901-12-30
19021902-02-281902-12-13
19031903-01-031903-09-17
19041904-01-291904-11-13
19061906-01-031906-12-31
19071907-01-041907-12-30
19091909-01-051909-12-14
19111911-01-011911-12-26
19121912-02-211912-12-24
19131913-01-031913-12-26
19141914-01-011914-12-26
19151915-01-071915-12-29
19161916-01-071916-12-22
19221922-01-111922-12-17
19231923-01-011923-12-05
19251925-01-011925-11-13
19261926-01-041926-12-28
19271927-02-141927-12-31
19281928-01-191928-12-14
19291929-01-101929-12-23
19301930-01-301930-12-18
19311931-02-171931-12-22
19331933-01-091933-12-26
19341934-01-021934-12-01
19351935-01-011935-12-29
19361936-01-021936-12-30
19381938-01-071938-12-27
19391939-01-061939-12-24
19401940-01-081940-12-28

Every Fixed Threshold

Fixed thresholds at Radford
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3147190937
25 mm (0.98 in): Days with 25 mm or more rain301619098
50 mm (1.97 in): Days with 50 mm or more rain20419013
10 cm (3.9 in): Days with 10 cm or more snowfall2219362

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

  • Data for Radford 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 (2025-12-31).