Built 2026-10-19 (19 October 2026)

Robertson Threshold Days by Year (SF000236780)

13 fixed thresholds counted per year at Robertson (SF000236780): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Robertson Thresholds

  • Robertson: days with 10 mm (0.39 in) or more of precipitation in 103 years, most in 1956 with 20.
  • Robertson: days with 25 mm (0.98 in) or more of precipitation in 82 years, most in 1956 with 12.
  • Robertson: days with 50 mm (1.97 in) or more of precipitation in 19 years, most in 1956 with 3.
  • Robertson: nights with a minimum temperature at or above 20 C (68 F) in 11 years, most in 2016 with 15.
  • 13 fixed thresholds have at least one qualifying day at Robertson.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Robertson Days per year at Robertson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 152 in 2017. 0501001502002013: 1302015: 1462016: 1352017: 1522018: 1392019: 1412020: 1272021: 1322022: 1362025: 182013201520162017201820192020202120222025
Days per year at Robertson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 152 in 2017.
Days at or above 30 C (86 F) per year at Robertson
YearDaysDecade average
2013130140.5
2015146140.5
2016135140.5
2017152140.5
2018139140.5
2019141140.5
2020127103.3
2021132103.3
2022136103.3
202518103.3
First to last qualifying date each year at Robertson For each year, a bar from the first to the last day at Robertson meeting 30 C (86 F). 2013: 5 January 2013 to 31 December 20132015: 1 January 2015 to 30 December 20152016: 1 January 2016 to 31 December 20162017: 1 January 2017 to 31 December 20172018: 1 January 2018 to 31 December 20182019: 1 January 2019 to 29 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212022: 1 January 2022 to 31 December 20222025: 3 January 2025 to 31 December 202520132016201820202022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Robertson meeting 30 C (86 F).
First to last qualifying date each year at Robertson
YearFirst dateLast date
20132013-01-052013-12-31
20152015-01-012015-12-30
20162016-01-012016-12-31
20172017-01-012017-12-31
20182018-01-012018-12-31
20192019-01-012019-12-29
20202020-01-012020-12-31
20212021-01-012021-12-31
20222022-01-012022-12-31
20252025-01-032025-12-31

Every Fixed Threshold

Fixed thresholds at Robertson
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days10152201718
35 C (95 F): Days106120155
40 C (104 F): Days9920183
45 C (113 F): Days1120221
90 F (32.2 C): Days109820228
100 F (37.8 C): Days919201818
110 F (43.3 C): Days2220151
0 C (32 F): Frost days (min6220159
20 C (68 F): Tropical nights (min111520161
10 mm (0.39 in): Days with 10 mm or more rain10320195613
25 mm (0.98 in): Days with 25 mm or more rain821219564
50 mm (1.97 in): Days with 50 mm or more rain19319561
100 mm (3.94 in): Days with 100 mm or more rain4119021

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2013.

Download the Data

  • Data for Robertson 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).