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

Robson Threshold Days by Year (USC00167924)

14 fixed thresholds counted per year at Robson (USC00167924): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Robson Thresholds

  • Robson: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1957 with 58.
  • Robson: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1991 with 29.
  • Robson: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1991 with 11.
  • Robson: days with 100 mm (3.94 in) or more of precipitation in 17 years, most in 1997 with 4.
  • 14 fixed thresholds have at least one qualifying day at Robson.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Robson Days per year at Robson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 156 in 2010. 0501001502002004: 1362005: 1372006: 1472007: 1372008: 1182010: 1562011: 1532004200520062007200820102011
Days per year at Robson with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 156 in 2010.
Days at or above 30 C (86 F) per year at Robson
YearDaysDecade average
2004136135
2005137135
2006147135
2007137135
2008118135
2010156154.5
2011153154.5
First to last qualifying date each year at Robson For each year, a bar from the first to the last day at Robson meeting 30 C (86 F). 2004: 20 March 2004 to 1 November 20042005: 14 March 2005 to 29 September 20052006: 12 March 2006 to 19 October 20062007: 30 April 2007 to 22 October 20072008: 25 April 2008 to 15 October 20082010: 2 May 2010 to 2 November 20102011: 27 March 2011 to 26 October 20112004200520062007200820102011JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Robson meeting 30 C (86 F).
First to last qualifying date each year at Robson
YearFirst dateLast date
20042004-03-202004-11-01
20052005-03-142005-09-29
20062006-03-122006-10-19
20072007-04-302007-10-22
20082008-04-252008-10-15
20102010-05-022010-11-02
20112011-03-272011-10-26

Every Fixed Threshold

Fixed thresholds at Robson
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days71562010153
35 C (95 F): Days792201192
40 C (104 F): Days316201116
90 F (32.2 C): Days71282010124
100 F (37.8 C): Days651201151
0 C (32 F): Ice days (max4220101
0 C (32 F): Frost days (min759200436
20 C (68 F): Tropical nights (min71182010115
25 C (77 F): Days with min633201133
10 mm (0.39 in): Days with 10 mm or more rain4858195724
25 mm (0.98 in): Days with 25 mm or more rain4829199110
50 mm (1.97 in): Days with 50 mm or more rain471119913
100 mm (3.94 in): Days with 100 mm or more rain17419971
10 cm (3.9 in): Days with 10 cm or more snowfall3119491

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2004.

Download the Data

  • Data for Robson 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).