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Built 2026-10-19 (19 October 2026)

St Nazaire Threshold Days by Year (CA007027588)

14 fixed thresholds counted per year at St Nazaire (CA007027588): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Nazaire Thresholds

  • St Nazaire: days with a maximum temperature at or above 30 C (86 F) in 10 years, most in 1975 with 16.
  • St Nazaire: days with a maximum temperature at or below 0 C (32 F) in 10 years, most in 1976 with 99.
  • St Nazaire: nights with a minimum temperature at or below 0 C (32 F) in 10 years, most in 1978 with 190.
  • St Nazaire: nights with a minimum temperature at or below -10 C (14 F) in 10 years, most in 1978 with 97.
  • 14 fixed thresholds have at least one qualifying day at St Nazaire.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at St Nazaire Days per year at St Nazaire with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 1975. 051015201974: 11975: 161976: 41977: 91978: 121979: 91980: 21981: 31982: 61983: 131974197519761977197819791980198119821983
Days per year at St Nazaire with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 16 in 1975.
Days at or above 30 C (86 F) per year at St Nazaire
YearDaysDecade average
197418.5
1975168.5
197648.5
197798.5
1978128.5
197998.5
198026
198136
198266
1983136
First to last qualifying date each year at St Nazaire For each year, a bar from the first to the last day at St Nazaire meeting 30 C (86 F). 1974: 12 July 1974 to 12 July 19741975: 20 May 1975 to 3 August 19751976: 10 June 1976 to 21 August 19761977: 21 May 1977 to 29 August 19771978: 27 May 1978 to 16 August 19781979: 9 May 1979 to 2 August 19791980: 24 June 1980 to 25 June 19801981: 16 June 1981 to 9 July 19811982: 7 July 1982 to 18 July 19821983: 13 June 1983 to 20 September 198319741976197819801982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Nazaire meeting 30 C (86 F).
First to last qualifying date each year at St Nazaire
YearFirst dateLast date
19741974-07-121974-07-12
19751975-05-201975-08-03
19761976-06-101976-08-21
19771977-05-211977-08-29
19781978-05-271978-08-16
19791979-05-091979-08-02
19801980-06-241980-06-25
19811981-06-161981-07-09
19821982-07-071982-07-18
19831983-06-131983-09-20

Every Fixed Threshold

Fixed thresholds at St Nazaire
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1016197513
35 C (95 F): Days1119751
90 F (32.2 C): Days5519752
0 C (32 F): Ice days (max1099197662
0 C (32 F): Frost days (min101901978154
-10 C (14 F): Days with min1097197859
-20 C (-4 F): Days with min1045197619
-30 C (-22 F): Days with min101619793
20 C (68 F): Tropical nights (min1011198311
10 mm (0.39 in): Days with 10 mm or more rain1050198350
25 mm (0.98 in): Days with 25 mm or more rain101019748
50 mm (1.97 in): Days with 50 mm or more rain6119741
10 cm (3.9 in): Days with 10 cm or more snowfall10919759
25 cm (9.8 in): Days with 25 cm or more snowfall1119811

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

  • Data for St Nazaire 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).