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Built 2026-10-19 (19 October 2026)

Richmond Threshold Days by Year (USC00047414)

11 fixed thresholds counted per year at Richmond (USC00047414): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richmond Thresholds

  • Richmond: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1983 with 47.
  • Richmond: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1983 with 13.
  • Richmond: days with a maximum temperature at or above 30 C (86 F) in 51 years, most in 2020 with 24.
  • Richmond: days with a maximum temperature at or above 90 F (32.2 C) in 49 years, most in 1976 with 13.
  • 11 fixed thresholds have at least one qualifying day at Richmond.
51 years with a qualifying day
Days at or above 30 C (86 F) per year at Richmond Days per year at Richmond with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 2020. 01020301951: 61952: 61953: 61954: 51955: 61956: 61957: 81958: 111959: 121960: 31961: 121962: 21963: 51964: 111965: 91966: 101967: 71968: 61969: 11970: 171971: 121972: 51973: 91974: 81975: 51976: 161978: 141979: 71980: 101981: 131982: 31983: 141984: 121985: 91986: 21987: 81988: 61989: 101990: 51991: 71996: 111997: 101998: 41999: 82001: 92002: 152015: 222016: 122019: 192020: 242026: 9195119571963196919751982198819982019
Days per year at Richmond with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 24 in 2020.
Days at or above 30 C (86 F) per year at Richmond
YearDaysDecade average
195167.3
195267.3
195367.3
195457.3
195567.3
195667.3
195787.3
1958117.3
1959127.3
196036.6
1961126.6
196226.6
196356.6
1964116.6
196596.6
1966106.6
196776.6
196866.6
196916.6
19701710.3
19711210.3
1972510.3
1973910.3
1974810.3
1975510.3
19761610.3
19781410.3
1979710.3
1980108.7
1981138.7
198238.7
1983148.7
1984128.7
198598.7
198628.7
198788.7
198868.7
1989108.7
199057.5
199177.5
1996117.5
1997107.5
199847.5
199987.5
2001912
20021512
20152217.7
20161217.7
20191917.7
20202416.5
2026916.5
First to last qualifying date each year at Richmond For each year, a bar from the first to the last day at Richmond meeting 30 C (86 F). 1951: 25 May 1951 to 7 October 19511952: 31 August 1952 to 1 October 19521953: 24 June 1953 to 5 October 19531954: 17 April 1954 to 25 September 19541955: 18 May 1955 to 6 October 19551956: 15 May 1956 to 23 September 19561957: 28 April 1957 to 7 September 19571958: 16 May 1958 to 17 October 19581959: 8 May 1959 to 25 October 19591960: 21 June 1960 to 26 September 19601961: 15 June 1961 to 17 October 19611962: 20 June 1962 to 28 August 19621963: 27 July 1963 to 27 September 19631964: 15 April 1964 to 22 October 19641965: 27 April 1965 to 26 October 19651966: 16 April 1966 to 2 November 19661967: 16 May 1967 to 18 October 19671968: 30 August 1968 to 27 October 19681969: 6 May 1969 to 6 May 19691970: 3 May 1970 to 1 October 19701971: 3 September 1971 to 12 October 19711972: 13 May 1972 to 6 October 19721973: 28 May 1973 to 28 September 19731974: 26 May 1974 to 18 October 19741975: 25 May 1975 to 24 September 19751976: 12 May 1976 to 13 October 19761978: 18 May 1978 to 14 October 19781979: 12 May 1979 to 12 September 19791980: 27 June 1980 to 3 October 19801981: 28 April 1981 to 30 September 19811982: 6 August 1982 to 10 October 19821983: 17 May 1983 to 4 October 19831984: 14 April 1984 to 7 October 19841985: 13 April 1985 to 4 October 19851986: 9 June 1986 to 4 October 19861987: 21 April 1987 to 5 October 19871988: 10 April 1988 to 17 October 19881989: 6 April 1989 to 18 October 19891990: 8 June 1990 to 11 October 19901991: 1 July 1991 to 21 October 19911996: 30 April 1996 to 8 October 19961997: 16 May 1997 to 17 October 19971998: 16 June 1998 to 4 August 19981999: 22 August 1999 to 21 October 19992001: 7 May 2001 to 14 October 20012002: 10 June 2002 to 7 October 20022015: 30 April 2015 to 14 October 20152016: 6 April 2016 to 9 October 20162019: 8 June 2019 to 25 October 20192020: 14 April 2020 to 19 October 20202026: 18 March 2026 to 5 October 202619511958196519721980198719982020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Richmond meeting 30 C (86 F).
First to last qualifying date each year at Richmond
YearFirst dateLast date
19511951-05-251951-10-07
19521952-08-311952-10-01
19531953-06-241953-10-05
19541954-04-171954-09-25
19551955-05-181955-10-06
19561956-05-151956-09-23
19571957-04-281957-09-07
19581958-05-161958-10-17
19591959-05-081959-10-25
19601960-06-211960-09-26
19611961-06-151961-10-17
19621962-06-201962-08-28
19631963-07-271963-09-27
19641964-04-151964-10-22
19651965-04-271965-10-26
19661966-04-161966-11-02
19671967-05-161967-10-18
19681968-08-301968-10-27
19691969-05-061969-05-06
19701970-05-031970-10-01
19711971-09-031971-10-12
19721972-05-131972-10-06
19731973-05-281973-09-28
19741974-05-261974-10-18
19751975-05-251975-09-24
19761976-05-121976-10-13
19781978-05-181978-10-14
19791979-05-121979-09-12
19801980-06-271980-10-03
19811981-04-281981-09-30
19821982-08-061982-10-10
19831983-05-171983-10-04
19841984-04-141984-10-07
19851985-04-131985-10-04
19861986-06-091986-10-04
19871987-04-211987-10-05
19881988-04-101988-10-17
19891989-04-061989-10-18
19901990-06-081990-10-11
19911991-07-011991-10-21
19961996-04-301996-10-08
19971997-05-161997-10-17
19981998-06-161998-08-04
19991999-08-221999-10-21
20012001-05-072001-10-14
20022002-06-102002-10-07
20152015-04-302015-10-14
20162016-04-062016-10-09
20192019-06-082019-10-25
20202020-04-142020-10-19
20262026-03-182026-10-05

Every Fixed Threshold

Fixed thresholds at Richmond
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days512420209
35 C (95 F): Days32819762
40 C (104 F): Days1219712
90 F (32.2 C): Days491319764
100 F (37.8 C): Days8219711
0 C (32 F): Frost days (min271019723
20 C (68 F): Tropical nights (min7320203
10 mm (0.39 in): Days with 10 mm or more rain604719837
25 mm (0.98 in): Days with 25 mm or more rain591319832
50 mm (1.97 in): Days with 50 mm or more rain35419811
100 mm (3.94 in): Days with 100 mm or more rain1119821

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

  • Data for Richmond 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).