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Built 2026-10-19 (19 October 2026)

Byron Threshold Days by Year (ASN00008234)

3 fixed thresholds counted per year at Byron (ASN00008234): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Byron Thresholds

  • Byron: days with 10 mm (0.39 in) or more of precipitation in 42 years, most in 2024 with 16.
  • Byron: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1999 with 4.
  • Byron: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 2024 with 2.
  • 3 fixed thresholds have at least one qualifying day at Byron.
42 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Byron Days per year at Byron with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 2024. 051015201969: 51970: 101971: 101972: 91973: 31974: 151975: 121976: 31977: 41978: 71979: 51980: 81981: 71982: 81983: 101984: 151985: 51986: 101987: 71988: 71989: 81990: 51991: 81992: 91993: 101994: 101995: 101996: 151997: 81998: 111999: 102000: 72001: 52002: 22003: 82004: 62005: 62006: 82019: 52022: 72023: 32024: 16196919741979198419891994199920042023
Days per year at Byron with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 16 in 2024.
Days with 10 mm (0.39 in) or more of precipitation per year at Byron
YearDaysDecade average
196955
1970107.8
1971107.8
197297.8
197337.8
1974157.8
1975127.8
197637.8
197747.8
197877.8
197957.8
198088.5
198178.5
198288.5
1983108.5
1984158.5
198558.5
1986108.5
198778.5
198878.5
198988.5
199059.6
199189.6
199299.6
1993109.6
1994109.6
1995109.6
1996159.6
199789.6
1998119.6
1999109.6
200076
200156
200226
200386
200466
200566
200686
201955
202278.7
202338.7
2024168.7
First to last qualifying date each year at Byron For each year, a bar from the first to the last day at Byron meeting 10 mm (0.39 in). 1969: 18 May 1969 to 3 November 19691970: 16 February 1970 to 20 September 19701971: 31 January 1971 to 15 August 19711972: 14 May 1972 to 27 July 19721973: 10 June 1973 to 8 September 19731974: 2 January 1974 to 20 October 19741975: 21 March 1975 to 15 October 19751976: 27 February 1976 to 11 October 19761977: 27 April 1977 to 13 August 19771978: 4 April 1978 to 17 August 19781979: 14 March 1979 to 19 August 19791980: 5 May 1980 to 26 August 19801981: 22 May 1981 to 1 August 19811982: 20 January 1982 to 21 September 19821983: 3 June 1983 to 1 December 19831984: 8 January 1984 to 15 September 19841985: 2 February 1985 to 22 September 19851986: 21 February 1986 to 30 July 19861987: 9 February 1987 to 6 October 19871988: 15 April 1988 to 24 July 19881989: 1 May 1989 to 21 July 19891990: 28 January 1990 to 2 August 19901991: 22 April 1991 to 24 December 19911992: 15 March 1992 to 20 September 19921993: 11 March 1993 to 14 November 19931994: 25 February 1994 to 10 August 19941995: 14 January 1995 to 16 November 19951996: 8 February 1996 to 11 September 19961997: 4 April 1997 to 10 August 19971998: 7 January 1998 to 13 July 19981999: 21 March 1999 to 21 September 19992000: 10 March 2000 to 6 September 20002001: 31 May 2001 to 20 October 20012002: 30 January 2002 to 4 March 20022003: 9 May 2003 to 17 November 20032004: 17 April 2004 to 24 September 20042005: 28 March 2005 to 18 August 20052006: 7 January 2006 to 8 September 20062019: 7 June 2019 to 5 July 20192022: 29 January 2022 to 21 July 20222023: 25 March 2023 to 31 March 20232024: 13 April 2024 to 25 November 20241969197519811987199319992005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Byron meeting 10 mm (0.39 in).
First to last qualifying date each year at Byron
YearFirst dateLast date
19691969-05-181969-11-03
19701970-02-161970-09-20
19711971-01-311971-08-15
19721972-05-141972-07-27
19731973-06-101973-09-08
19741974-01-021974-10-20
19751975-03-211975-10-15
19761976-02-271976-10-11
19771977-04-271977-08-13
19781978-04-041978-08-17
19791979-03-141979-08-19
19801980-05-051980-08-26
19811981-05-221981-08-01
19821982-01-201982-09-21
19831983-06-031983-12-01
19841984-01-081984-09-15
19851985-02-021985-09-22
19861986-02-211986-07-30
19871987-02-091987-10-06
19881988-04-151988-07-24
19891989-05-011989-07-21
19901990-01-281990-08-02
19911991-04-221991-12-24
19921992-03-151992-09-20
19931993-03-111993-11-14
19941994-02-251994-08-10
19951995-01-141995-11-16
19961996-02-081996-09-11
19971997-04-041997-08-10
19981998-01-071998-07-13
19991999-03-211999-09-21
20002000-03-102000-09-06
20012001-05-312001-10-20
20022002-01-302002-03-04
20032003-05-092003-11-17
20042004-04-172004-09-24
20052005-03-282005-08-18
20062006-01-072006-09-08
20192019-06-072019-07-05
20222022-01-292022-07-21
20232023-03-252023-03-31
20242024-04-132024-11-25

Every Fixed Threshold

Fixed thresholds at Byron
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4216202416
25 mm (0.98 in): Days with 25 mm or more rain29419993
50 mm (1.97 in): Days with 50 mm or more rain8220242

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Byron 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).