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

Louisbourg Threshold Days by Year (CA008203161)

12 fixed thresholds counted per year at Louisbourg (CA008203161): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Louisbourg Thresholds

  • Louisbourg: days with a maximum temperature at or below 0 C (32 F) in 11 years, most in 1974 with 66.
  • Louisbourg: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 1978 with 175.
  • Louisbourg: nights with a minimum temperature at or below -10 C (14 F) in 11 years, most in 1978 with 52.
  • Louisbourg: days with 10 mm (0.39 in) or more of precipitation in 11 years, most in 1983 with 73.
  • 12 fixed thresholds have at least one qualifying day at Louisbourg.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Louisbourg Days per year at Louisbourg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1976. 011221973: 11976: 21977: 11978: 11979: 119731976197719781979
Days per year at Louisbourg with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 2 in 1976.
Days at or above 30 C (86 F) per year at Louisbourg
YearDaysDecade average
197311.2
197621.2
197711.2
197811.2
197911.2
First to last qualifying date each year at Louisbourg For each year, a bar from the first to the last day at Louisbourg meeting 30 C (86 F). 1973: 9 July 1973 to 9 July 19731976: 22 June 1976 to 24 June 19761977: 29 June 1977 to 29 June 19771978: 16 August 1978 to 16 August 19781979: 16 June 1979 to 16 June 197919731976197719781979JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Louisbourg meeting 30 C (86 F).
First to last qualifying date each year at Louisbourg
YearFirst dateLast date
19731973-07-091973-07-09
19761976-06-221976-06-24
19771977-06-291977-06-29
19781978-08-161978-08-16
19791979-06-161979-06-16

Every Fixed Threshold

Fixed thresholds at Louisbourg
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5219761
0 C (32 F): Ice days (max1166197454
0 C (32 F): Frost days (min111751978143
-10 C (14 F): Days with min1152197822
-20 C (-4 F): Days with min9719753
20 C (68 F): Tropical nights (min1119781
10 mm (0.39 in): Days with 10 mm or more rain1173198373
25 mm (0.98 in): Days with 25 mm or more rain1126198326
50 mm (1.97 in): Days with 50 mm or more rain8419834
100 mm (3.94 in): Days with 100 mm or more rain1119811
10 cm (3.9 in): Days with 10 cm or more snowfall111119766
25 cm (9.8 in): Days with 25 cm or more snowfall9419834

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Louisbourg 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).