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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Trout Lake 1SW Threshold Days by Year

17 fixed thresholds counted per year at Trout Lake 1SW (USC00208293): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Trout Lake 1SW Thresholds

  • Trout Lake 1SW: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 1989 with 104.
  • Trout Lake 1SW: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1983 with 213.
  • Trout Lake 1SW: nights with a minimum temperature at or below -10 C (14 F) in 28 years, most in 1989 with 105.
  • Trout Lake 1SW: nights with a minimum temperature at or below -20 C (-4 F) in 28 years, most in 1989 with 53.
  • 17 fixed thresholds have at least one qualifying day at Trout Lake 1SW.
22 years with a qualifying day
Days at or above 30 C (86 F) per year at Trout Lake 1SW Days per year at Trout Lake 1SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1999. 0510151979: 11980: 21981: 41983: 101989: 111991: 81993: 21994: 41996: 11997: 51998: 81999: 152000: 42003: 12005: 152006: 42007: 72009: 22010: 12011: 12012: 52013: 419791983199319972000200620102013
Days per year at Trout Lake 1SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 15 in 1999.
Days at or above 30 C (86 F) per year at Trout Lake 1SW
YearDaysDecade average
197911
198026.8
198146.8
1983106.8
1989116.8
199186.1
199326.1
199446.1
199616.1
199756.1
199886.1
1999156.1
200045.5
200315.5
2005155.5
200645.5
200775.5
200925.5
201012.8
201112.8
201252.8
201342.8
First to last qualifying date each year at Trout Lake 1SW For each year, a bar from the first to the last day at Trout Lake 1SW meeting 30 C (86 F). 1979: 12 July 1979 to 12 July 19791980: 24 May 1980 to 24 August 19801981: 7 July 1981 to 1 August 19811983: 14 June 1983 to 19 August 19831989: 5 July 1989 to 5 August 19891991: 29 June 1991 to 31 August 19911993: 13 August 1993 to 26 August 19931994: 17 June 1994 to 7 July 19941996: 17 July 1996 to 17 July 19961997: 10 June 1997 to 27 July 19971998: 15 May 1998 to 5 August 19981999: 10 June 1999 to 5 September 19992000: 9 July 2000 to 31 August 20002003: 15 August 2003 to 15 August 20032005: 27 June 2005 to 4 August 20052006: 17 June 2006 to 1 August 20062007: 13 June 2007 to 1 August 20072009: 24 June 2009 to 25 June 20092010: 24 May 2010 to 24 May 20102011: 1 August 2011 to 1 August 20112012: 4 July 2012 to 14 July 20122013: 26 June 2013 to 17 July 201319791983199319972000200620102013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Trout Lake 1SW meeting 30 C (86 F).
First to last qualifying date each year at Trout Lake 1SW
YearFirst dateLast date
19791979-07-121979-07-12
19801980-05-241980-08-24
19811981-07-071981-08-01
19831983-06-141983-08-19
19891989-07-051989-08-05
19911991-06-291991-08-31
19931993-08-131993-08-26
19941994-06-171994-07-07
19961996-07-171996-07-17
19971997-06-101997-07-27
19981998-05-151998-08-05
19991999-06-101999-09-05
20002000-07-092000-08-31
20032003-08-152003-08-15
20052005-06-272005-08-04
20062006-06-172006-08-01
20072007-06-132007-08-01
20092009-06-242009-06-25
20102010-05-242010-05-24
20112011-08-012011-08-01
20122012-07-042012-07-14
20132013-06-262013-07-17

Every Fixed Threshold

Fixed thresholds at Trout Lake 1SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days221519994
35 C (95 F): Days1119911
90 F (32.2 C): Days8620051
0 C (32 F): Ice days (max29104198972
0 C (32 F): Frost days (min282131983167
-10 C (14 F): Days with min28105198971
-20 C (-4 F): Days with min2853198916
-30 C (-22 F): Days with min141019841
-40 C (-40 F): Days with min1119791
20 C (68 F): Tropical nights (min15420102
25 C (77 F): Days with min1120111
10 mm (0.39 in): Days with 10 mm or more rain2233200827
25 mm (0.98 in): Days with 25 mm or more rain2211201311
50 mm (1.97 in): Days with 50 mm or more rain9219991
100 mm (3.94 in): Days with 100 mm or more rain1120111
10 cm (3.9 in): Days with 10 cm or more snowfall1913200811
25 cm (9.8 in): Days with 25 cm or more snowfall8219961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for Trout Lake 1SW 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).