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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Macdowall Threshold Days by Year (CA004054795)

13 fixed thresholds counted per year at Macdowall (CA004054795): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Macdowall Thresholds

  • Macdowall: days with a maximum temperature at or below 0 C (32 F) in 9 years, most in 1920 with 130.
  • Macdowall: nights with a minimum temperature at or below 0 C (32 F) in 9 years, most in 1916 with 229.
  • Macdowall: nights with a minimum temperature at or below -10 C (14 F) in 9 years, most in 1920 with 136.
  • Macdowall: nights with a minimum temperature at or below -20 C (-4 F) in 9 years, most in 1917 with 91.
  • 13 fixed thresholds have at least one qualifying day at Macdowall.
8 years with a qualifying day
Days at or above 30 C (86 F) per year at Macdowall Days per year at Macdowall with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 1917. 0510151916: 81917: 111920: 91921: 21922: 81924: 41925: 81926: 919161917192019211922192419251926
Days per year at Macdowall with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 11 in 1917.
Days at or above 30 C (86 F) per year at Macdowall
YearDaysDecade average
191689.5
1917119.5
192096.7
192126.7
192286.7
192446.7
192586.7
192696.7
First to last qualifying date each year at Macdowall For each year, a bar from the first to the last day at Macdowall meeting 30 C (86 F). 1916: 10 July 1916 to 1 August 19161917: 14 May 1917 to 22 September 19171920: 10 July 1920 to 23 August 19201921: 20 July 1921 to 22 July 19211922: 25 May 1922 to 27 September 19221924: 2 July 1924 to 25 July 19241925: 18 May 1925 to 3 August 19251926: 26 June 1926 to 24 August 192619161917192019211922192419251926JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Macdowall meeting 30 C (86 F).
First to last qualifying date each year at Macdowall
YearFirst dateLast date
19161916-07-101916-08-01
19171917-05-141917-09-22
19201920-07-101920-08-23
19211921-07-201921-07-22
19221922-05-251922-09-27
19241924-07-021924-07-25
19251925-05-181925-08-03
19261926-06-261926-08-24

Every Fixed Threshold

Fixed thresholds at Macdowall
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days81119179
35 C (95 F): Days1119261
90 F (32.2 C): Days6619266
0 C (32 F): Ice days (max91301920118
0 C (32 F): Frost days (min92291916223
-10 C (14 F): Days with min91361920123
-20 C (-4 F): Days with min991191756
-30 C (-22 F): Days with min94519179
-40 C (-40 F): Days with min81119172
10 mm (0.39 in): Days with 10 mm or more rain81719217
25 mm (0.98 in): Days with 25 mm or more rain6619161
50 mm (1.97 in): Days with 50 mm or more rain1119201
10 cm (3.9 in): Days with 10 cm or more snowfall7419172

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1916.

Download the Data

  • Data for Macdowall 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).