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Built 2026-10-19 (19 October 2026)

South Wales Emery Park Threshold Days by Year (USC00308058)

16 fixed thresholds counted per year at South Wales Emery Park (USC00308058): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for South Wales Emery Park Thresholds

  • South Wales Emery Park: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1947 with 46.
  • South Wales Emery Park: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1975 with 12.
  • South Wales Emery Park: days with 10 cm (3.9 in) or more of snowfall in 45 years, most in 1942 with 12.
  • South Wales Emery Park: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1943 with 180.
  • 16 fixed thresholds have at least one qualifying day at South Wales Emery Park.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at South Wales Emery Park Days per year at South Wales Emery Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1955. 02040601935: 281936: 351938: 121939: 81940: 121941: 191942: 121943: 151944: 241945: 201946: 111947: 301948: 191949: 381950: 91951: 111952: 371953: 231954: 91955: 451956: 71957: 111958: 31959: 371960: 131961: 161963: 141964: 251966: 201970: 111972: 141973: 201975: 171976: 51978: 20193519401944194819521956196019661975
Days per year at South Wales Emery Park with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1955.
Days at or above 30 C (86 F) per year at South Wales Emery Park
YearDaysDecade average
19352820.8
19363520.8
19381220.8
1939820.8
19401220
19411920
19421220
19431520
19442420
19452020
19461120
19473020
19481920
19493820
1950919.2
19511119.2
19523719.2
19532319.2
1954919.2
19554519.2
1956719.2
19571119.2
1958319.2
19593719.2
19601317.6
19611617.6
19631417.6
19642517.6
19662017.6
19701114.5
19721414.5
19732014.5
19751714.5
1976514.5
19782014.5
First to last qualifying date each year at South Wales Emery Park For each year, a bar from the first to the last day at South Wales Emery Park meeting 30 C (86 F). 1935: 2 June 1935 to 18 September 19351936: 10 May 1936 to 23 September 19361938: 22 June 1938 to 20 August 19381939: 27 May 1939 to 16 September 19391940: 8 June 1940 to 18 August 19401941: 22 June 1941 to 9 September 19411942: 10 June 1942 to 18 September 19421943: 5 June 1943 to 2 September 19431944: 31 May 1944 to 17 August 19441945: 15 June 1945 to 11 September 19451946: 26 June 1946 to 29 September 19461947: 30 May 1947 to 14 September 19471948: 29 May 1948 to 6 September 19481949: 5 May 1949 to 11 October 19491950: 6 May 1950 to 28 August 19501951: 9 July 1951 to 6 October 19511952: 9 June 1952 to 15 September 19521953: 20 June 1953 to 5 September 19531954: 13 June 1954 to 30 September 19541955: 28 May 1955 to 20 September 19551956: 14 June 1956 to 6 September 19561957: 14 June 1957 to 3 September 19571958: 6 July 1958 to 1 September 19581959: 21 May 1959 to 29 September 19591960: 13 July 1960 to 9 September 19601961: 13 June 1961 to 25 September 19611963: 25 June 1963 to 29 July 19631964: 10 June 1964 to 11 September 19641966: 25 May 1966 to 10 August 19661970: 1 May 1970 to 25 September 19701972: 28 May 1972 to 25 August 19721973: 6 June 1973 to 6 September 19731975: 23 May 1975 to 3 August 19751976: 11 June 1976 to 10 September 19761978: 29 May 1978 to 19 August 19781935194119461951195619611972JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at South Wales Emery Park meeting 30 C (86 F).
First to last qualifying date each year at South Wales Emery Park
YearFirst dateLast date
19351935-06-021935-09-18
19361936-05-101936-09-23
19381938-06-221938-08-20
19391939-05-271939-09-16
19401940-06-081940-08-18
19411941-06-221941-09-09
19421942-06-101942-09-18
19431943-06-051943-09-02
19441944-05-311944-08-17
19451945-06-151945-09-11
19461946-06-261946-09-29
19471947-05-301947-09-14
19481948-05-291948-09-06
19491949-05-051949-10-11
19501950-05-061950-08-28
19511951-07-091951-10-06
19521952-06-091952-09-15
19531953-06-201953-09-05
19541954-06-131954-09-30
19551955-05-281955-09-20
19561956-06-141956-09-06
19571957-06-141957-09-03
19581958-07-061958-09-01
19591959-05-211959-09-29
19601960-07-131960-09-09
19611961-06-131961-09-25
19631963-06-251963-07-29
19641964-06-101964-09-11
19661966-05-251966-08-10
19701970-05-011970-09-25
19721972-05-281972-08-25
19731973-06-061973-09-06
19751975-05-231975-08-03
19761976-06-111976-09-10
19781978-05-291978-08-19

Every Fixed Threshold

Fixed thresholds at South Wales Emery Park
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3545195520
35 C (95 F): Days8519361
90 F (32.2 C): Days271819364
100 F (37.8 C): Days1319363
0 C (32 F): Ice days (max3573196064
0 C (32 F): Frost days (min421801943153
-10 C (14 F): Days with min4267196358
-20 C (-4 F): Days with min372019634
-30 C (-22 F): Days with min10n/a1
20 C (68 F): Tropical nights (min371319445
25 C (77 F): Days with min2119361
10 mm (0.39 in): Days with 10 mm or more rain4646194725
25 mm (0.98 in): Days with 25 mm or more rain461219756
50 mm (1.97 in): Days with 50 mm or more rain18219531
10 cm (3.9 in): Days with 10 cm or more snowfall4512194210
25 cm (9.8 in): Days with 25 cm or more snowfall18219782

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1935.

Download the Data

  • Data for South Wales Emery Park 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).