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Built 2026-10-19 (19 October 2026)

St Germain Threshold Days by Year (USC00477480)

17 fixed thresholds counted per year at St Germain (USC00477480): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Germain Thresholds

  • St Germain: days with 10 cm (3.9 in) or more of snowfall in 49 years, most in 2019 with 11.
  • St Germain: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 2002 with 37.
  • St Germain: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1999 with 12.
  • St Germain: days with a maximum temperature at or below 0 C (32 F) in 36 years, most in 1978 with 117.
  • 17 fixed thresholds have at least one qualifying day at St Germain.
28 years with a qualifying day
Days at or above 30 C (86 F) per year at St Germain Days per year at St Germain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1988. 0102030401972: 31973: 21974: 21975: 51976: 51977: 31980: 31983: 41986: 41987: 221988: 361989: 151990: 11993: 11994: 21995: 111996: 21998: 51999: 62000: 22001: 102002: 62003: 42004: 12005: 132006: 92007: 82009: 11972197519801987199019951999200220052009
Days per year at St Germain with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 1988.
Days at or above 30 C (86 F) per year at St Germain
YearDaysDecade average
197233.3
197323.3
197423.3
197553.3
197653.3
197733.3
1980314
1983414
1986414
19872214
19883614
19891514
199014
199314
199424
1995114
199624
199854
199964
200026
2001106
200266
200346
200416
2005136
200696
200786
200916
First to last qualifying date each year at St Germain For each year, a bar from the first to the last day at St Germain meeting 30 C (86 F). 1972: 18 May 1972 to 25 May 19721973: 8 July 1973 to 28 August 19731974: 9 July 1974 to 14 July 19741975: 23 May 1975 to 2 August 19751976: 19 August 1976 to 8 September 19761977: 6 July 1977 to 20 July 19771980: 23 April 1980 to 11 July 19801983: 11 July 1983 to 8 August 19831986: 27 June 1986 to 19 July 19861987: 14 June 1987 to 6 September 19871988: 30 May 1988 to 17 August 19881989: 3 July 1989 to 5 August 19891990: 4 July 1990 to 4 July 19901993: 13 August 1993 to 13 August 19931994: 21 May 1994 to 17 June 19941995: 18 June 1995 to 31 July 19951996: 29 June 1996 to 30 June 19961998: 14 July 1998 to 12 September 19981999: 5 July 1999 to 31 July 19992000: 9 June 2000 to 10 June 20002001: 26 June 2001 to 9 August 20012002: 1 July 2002 to 31 July 20022003: 16 August 2003 to 9 September 20032004: 8 June 2004 to 8 June 20042005: 24 June 2005 to 12 September 20052006: 29 May 2006 to 1 August 20062007: 27 June 2007 to 12 August 20072009: 24 June 2009 to 24 June 20091972197619861990199620012005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Germain meeting 30 C (86 F).
First to last qualifying date each year at St Germain
YearFirst dateLast date
19721972-05-181972-05-25
19731973-07-081973-08-28
19741974-07-091974-07-14
19751975-05-231975-08-02
19761976-08-191976-09-08
19771977-07-061977-07-20
19801980-04-231980-07-11
19831983-07-111983-08-08
19861986-06-271986-07-19
19871987-06-141987-09-06
19881988-05-301988-08-17
19891989-07-031989-08-05
19901990-07-041990-07-04
19931993-08-131993-08-13
19941994-05-211994-06-17
19951995-06-181995-07-31
19961996-06-291996-06-30
19981998-07-141998-09-12
19991999-07-051999-07-31
20002000-06-092000-06-10
20012001-06-262001-08-09
20022002-07-012002-07-31
20032003-08-162003-09-09
20042004-06-082004-06-08
20052005-06-242005-09-12
20062006-05-292006-08-01
20072007-06-272007-08-12
20092009-06-242009-06-24

Every Fixed Threshold

Fixed thresholds at St Germain
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days283619881
35 C (95 F): Days2519881
90 F (32.2 C): Days161819881
0 C (32 F): Ice days (max36117197883
0 C (32 F): Frost days (min362021997176
-10 C (14 F): Days with min36107197881
-20 C (-4 F): Days with min3652197843
-30 C (-22 F): Days with min321719948
-40 C (-40 F): Days with min2219962
20 C (68 F): Tropical nights (min23819832
25 C (77 F): Days with min1119831
10 mm (0.39 in): Days with 10 mm or more rain413720024
25 mm (0.98 in): Days with 25 mm or more rain401219996
50 mm (1.97 in): Days with 50 mm or more rain18219771
100 mm (3.94 in): Days with 100 mm or more rain2119811
10 cm (3.9 in): Days with 10 cm or more snowfall491120194
25 cm (9.8 in): Days with 25 cm or more snowfall7220191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1972.

Download the Data

  • Data for St Germain 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).