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Built 2026-10-19 (19 October 2026)

Radway Threshold Days by Year (CA003015345)

17 fixed thresholds counted per year at Radway (CA003015345): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Radway Thresholds

  • Radway: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1950 with 19.
  • Radway: days with a maximum temperature at or below 0 C (32 F) in 27 years, most in 1935 with 122.
  • Radway: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1928 with 242.
  • Radway: nights with a minimum temperature at or below -10 C (14 F) in 26 years, most in 1935 with 151.
  • 17 fixed thresholds have at least one qualifying day at Radway.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Radway Days per year at Radway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 1950. 051015201923: 51926: 81927: 31928: 61929: 11930: 31931: 41932: 61933: 91934: 41935: 41936: 71937: 91938: 81939: 121940: 61941: 151942: 121943: 61944: 11945: 91946: 111947: 51948: 111949: 91950: 191951: 5192319281931193419371940194319461949
Days per year at Radway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 19 in 1950.
Days at or above 30 C (86 F) per year at Radway
YearDaysDecade average
192354.6
192684.6
192734.6
192864.6
192914.6
193036.6
193146.6
193266.6
193396.6
193446.6
193546.6
193676.6
193796.6
193886.6
1939126.6
194068.5
1941158.5
1942128.5
194368.5
194418.5
194598.5
1946118.5
194758.5
1948118.5
194998.5
19501912
1951512
First to last qualifying date each year at Radway For each year, a bar from the first to the last day at Radway meeting 30 C (86 F). 1923: 30 May 1923 to 16 June 19231926: 26 June 1926 to 25 July 19261927: 23 July 1927 to 25 July 19271928: 21 May 1928 to 10 August 19281929: 14 July 1929 to 14 July 19291930: 7 June 1930 to 7 August 19301931: 20 July 1931 to 23 July 19311932: 22 July 1932 to 6 September 19321933: 13 June 1933 to 28 August 19331934: 24 May 1934 to 6 September 19341935: 14 July 1935 to 23 July 19351936: 26 May 1936 to 27 June 19361937: 13 June 1937 to 18 September 19371938: 12 June 1938 to 4 September 19381939: 29 April 1939 to 22 August 19391940: 23 May 1940 to 31 August 19401941: 11 June 1941 to 12 August 19411942: 7 June 1942 to 17 August 19421943: 1 July 1943 to 23 July 19431944: 28 May 1944 to 28 May 19441945: 10 July 1945 to 16 August 19451946: 25 May 1946 to 23 August 19461947: 6 July 1947 to 2 August 19471948: 22 May 1948 to 22 July 19481949: 11 May 1949 to 3 August 19491950: 11 June 1950 to 22 September 19501951: 23 May 1951 to 4 August 19511923192919331937194119451949JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Radway meeting 30 C (86 F).
First to last qualifying date each year at Radway
YearFirst dateLast date
19231923-05-301923-06-16
19261926-06-261926-07-25
19271927-07-231927-07-25
19281928-05-211928-08-10
19291929-07-141929-07-14
19301930-06-071930-08-07
19311931-07-201931-07-23
19321932-07-221932-09-06
19331933-06-131933-08-28
19341934-05-241934-09-06
19351935-07-141935-07-23
19361936-05-261936-06-27
19371937-06-131937-09-18
19381938-06-121938-09-04
19391939-04-291939-08-22
19401940-05-231940-08-31
19411941-06-111941-08-12
19421942-06-071942-08-17
19431943-07-011943-07-23
19441944-05-281944-05-28
19451945-07-101945-08-16
19461946-05-251946-08-23
19471947-07-061947-08-02
19481948-05-221948-07-22
19491949-05-111949-08-03
19501950-06-111950-09-22
19511951-05-231951-08-04

Every Fixed Threshold

Fixed thresholds at Radway
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days271919505
35 C (95 F): Days4219412
90 F (32.2 C): Days22819411
100 F (37.8 C): Days1119371
0 C (32 F): Ice days (max271221935107
0 C (32 F): Frost days (min262421928189
-10 C (14 F): Days with min261511935115
-20 C (-4 F): Days with min2685192765
-30 C (-22 F): Days with min2643193622
-40 C (-40 F): Days with min211419503
20 C (68 F): Tropical nights (min1119411
25 C (77 F): Days with min1119411
10 mm (0.39 in): Days with 10 mm or more rain2018195118
25 mm (0.98 in): Days with 25 mm or more rain13519352
50 mm (1.97 in): Days with 50 mm or more rain2119371
10 cm (3.9 in): Days with 10 cm or more snowfall19619485
25 cm (9.8 in): Days with 25 cm or more snowfall4219351

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Radway 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).