Built 2026-10-19 (19 October 2026)

Brest Threshold Days by Year (BOM00033008)

12 fixed thresholds counted per year at Brest (BOM00033008): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Brest Thresholds

  • Brest: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1956 with 20.
  • Brest: days with a maximum temperature at or below 0 C (32 F) in 61 years, most in 1963 with 93.
  • Brest: nights with a minimum temperature at or below 0 C (32 F) in 60 years, most in 1956 with 140.
  • Brest: nights with a minimum temperature at or below -10 C (14 F) in 60 years, most in 1963 with 67.
  • 12 fixed thresholds have at least one qualifying day at Brest.
55 years with a qualifying day
Days at or above 30 C (86 F) per year at Brest Days per year at Brest with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1994. 01020301945: 11946: 61947: 111948: 31949: 51950: 31951: 141952: 111953: 61954: 61956: 11957: 41958: 41959: 121960: 11961: 71962: 11963: 171964: 161967: 41968: 71969: 31970: 11971: 141972: 71973: 11974: 21975: 11976: 21979: 31981: 51982: 31983: 21984: 11985: 61986: 91987: 21988: 21989: 91990: 41991: 81992: 201993: 21994: 221995: 71996: 31997: 51998: 71999: 92000: 102001: 122002: 162003: 122004: 52005: 71945195119581964197219811987199319992005
Days per year at Brest with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1994.
Days at or above 30 C (86 F) per year at Brest
YearDaysDecade average
194515.2
194665.2
1947115.2
194835.2
194955.2
195036.8
1951146.8
1952116.8
195366.8
195466.8
195616.8
195746.8
195846.8
1959126.8
196017
196177
196217
1963177
1964167
196747
196877
196937
197013.9
1971143.9
197273.9
197313.9
197423.9
197513.9
197623.9
197933.9
198154.3
198234.3
198324.3
198414.3
198564.3
198694.3
198724.3
198824.3
198994.3
199048.7
199188.7
1992208.7
199328.7
1994228.7
199578.7
199638.7
199758.7
199878.7
199998.7
20001010.3
20011210.3
20021610.3
20031210.3
2004510.3
2005710.3
First to last qualifying date each year at Brest For each year, a bar from the first to the last day at Brest meeting 30 C (86 F). 1945: 20 July 1945 to 20 July 19451946: 9 June 1946 to 19 August 19461947: 28 June 1947 to 17 September 19471948: 22 July 1948 to 3 August 19481949: 1 June 1949 to 10 August 19491950: 22 April 1950 to 29 August 19501951: 19 June 1951 to 7 September 19511952: 4 July 1952 to 16 August 19521953: 3 July 1953 to 27 July 19531954: 21 June 1954 to 6 September 19541956: 7 June 1956 to 7 June 19561957: 11 June 1957 to 12 August 19571958: 26 May 1958 to 17 July 19581959: 10 July 1959 to 24 August 19591960: 20 July 1960 to 20 July 19601961: 26 June 1961 to 3 September 19611962: 13 August 1962 to 13 August 19621963: 28 June 1963 to 28 August 19631964: 2 June 1964 to 29 August 19641967: 26 June 1967 to 17 August 19671968: 16 June 1968 to 7 July 19681969: 25 July 1969 to 2 August 19691970: 21 June 1970 to 21 June 19701971: 26 July 1971 to 22 August 19711972: 13 June 1972 to 30 July 19721973: 7 August 1973 to 7 August 19731974: 16 August 1974 to 17 August 19741975: 15 July 1975 to 15 July 19751976: 28 June 1976 to 23 July 19761979: 31 May 1979 to 25 June 19791981: 4 June 1981 to 8 August 19811982: 5 August 1982 to 9 August 19821983: 16 May 1983 to 17 May 19831984: 12 July 1984 to 12 July 19841985: 14 August 1985 to 26 August 19851986: 19 June 1986 to 8 August 19861987: 1 July 1987 to 8 July 19871988: 6 July 1988 to 23 July 19881989: 6 July 1989 to 22 August 19891990: 21 June 1990 to 6 August 19901991: 18 June 1991 to 9 August 19911992: 20 June 1992 to 1 September 19921993: 5 August 1993 to 16 August 19931994: 27 June 1994 to 7 August 19941995: 10 July 1995 to 24 August 19951996: 8 June 1996 to 10 June 19961997: 15 May 1997 to 1 July 19971998: 7 June 1998 to 3 August 19981999: 8 June 1999 to 9 August 19992000: 28 May 2000 to 21 August 20002001: 7 July 2001 to 21 August 20012002: 20 June 2002 to 22 August 20022003: 26 May 2003 to 13 August 20032004: 9 July 2004 to 20 August 20042005: 29 May 2005 to 31 July 200519451952196019691976198619932000JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Brest meeting 30 C (86 F).
First to last qualifying date each year at Brest
YearFirst dateLast date
19451945-07-201945-07-20
19461946-06-091946-08-19
19471947-06-281947-09-17
19481948-07-221948-08-03
19491949-06-011949-08-10
19501950-04-221950-08-29
19511951-06-191951-09-07
19521952-07-041952-08-16
19531953-07-031953-07-27
19541954-06-211954-09-06
19561956-06-071956-06-07
19571957-06-111957-08-12
19581958-05-261958-07-17
19591959-07-101959-08-24
19601960-07-201960-07-20
19611961-06-261961-09-03
19621962-08-131962-08-13
19631963-06-281963-08-28
19641964-06-021964-08-29
19671967-06-261967-08-17
19681968-06-161968-07-07
19691969-07-251969-08-02
19701970-06-211970-06-21
19711971-07-261971-08-22
19721972-06-131972-07-30
19731973-08-071973-08-07
19741974-08-161974-08-17
19751975-07-151975-07-15
19761976-06-281976-07-23
19791979-05-311979-06-25
19811981-06-041981-08-08
19821982-08-051982-08-09
19831983-05-161983-05-17
19841984-07-121984-07-12
19851985-08-141985-08-26
19861986-06-191986-08-08
19871987-07-011987-07-08
19881988-07-061988-07-23
19891989-07-061989-08-22
19901990-06-211990-08-06
19911991-06-181991-08-09
19921992-06-201992-09-01
19931993-08-051993-08-16
19941994-06-271994-08-07
19951995-07-101995-08-24
19961996-06-081996-06-10
19971997-05-151997-07-01
19981998-06-071998-08-03
19991999-06-081999-08-09
20002000-05-282000-08-21
20012001-07-072001-08-21
20022002-06-202002-08-22
20032003-05-262003-08-13
20042004-07-092004-08-20
20052005-05-292005-07-31

Every Fixed Threshold

Fixed thresholds at Brest
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days552219947
35 C (95 F): Days5419924
90 F (32.2 C): Days311119942
0 C (32 F): Ice days (max6193196340
0 C (32 F): Frost days (min601401956122
-10 C (14 F): Days with min6067196313
-20 C (-4 F): Days with min362119634
-30 C (-22 F): Days with min1219502
20 C (68 F): Tropical nights (min14519922
10 mm (0.39 in): Days with 10 mm or more rain6420195619
25 mm (0.98 in): Days with 25 mm or more rain56719722
50 mm (1.97 in): Days with 50 mm or more rain16119462

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Brest 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).