Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

Portis Threshold Days by Year (USC00146511)

14 fixed thresholds counted per year at Portis (USC00146511): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Portis Thresholds

  • Portis: days with a maximum temperature at or above 30 C (86 F) in 2 years, most in 1994 with 99.
  • Portis: days with a maximum temperature at or above 35 C (95 F) in 2 years, most in 1994 with 33.
  • Portis: days with a maximum temperature at or above 90 F (32.2 C) in 2 years, most in 1994 with 72.
  • Portis: days with a maximum temperature at or below 0 C (32 F) in 2 years, most in 1993 with 32.
  • 14 fixed thresholds have at least one qualifying day at Portis.
2 years with a qualifying day
Days at or above 30 C (86 F) per year at Portis Days per year at Portis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 1994. 02550751001993: 561994: 9919931994
Days per year at Portis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 1994.
Days at or above 30 C (86 F) per year at Portis
YearDaysDecade average
19935677.5
19949977.5
First to last qualifying date each year at Portis For each year, a bar from the first to the last day at Portis meeting 30 C (86 F). 1993: 27 May 1993 to 6 October 19931994: 17 March 1994 to 6 October 199419931994JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Portis meeting 30 C (86 F).
First to last qualifying date each year at Portis
YearFirst dateLast date
19931993-05-271993-10-06
19941994-03-171994-10-06

Every Fixed Threshold

Fixed thresholds at Portis
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days299199499
35 C (95 F): Days233199433
40 C (104 F): Days1319943
90 F (32.2 C): Days272199472
100 F (37.8 C): Days111199411
0 C (32 F): Ice days (max232199321
0 C (32 F): Frost days (min21441993138
-10 C (14 F): Days with min239199336
-20 C (-4 F): Days with min2219931
20 C (68 F): Tropical nights (min231199431
25 C (77 F): Days with min1119941
10 mm (0.39 in): Days with 10 mm or more rain230199321
25 mm (0.98 in): Days with 25 mm or more rain21219932
50 mm (1.97 in): Days with 50 mm or more rain2219931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1993.

Download the Data

  • Data for Portis 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).