Built 2026-10-18 (18 October 2026)

Castelo Branco Threshold Days by Year

8 fixed thresholds counted per year at Castelo Branco (POM00008570): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Castelo Branco Thresholds

  • Castelo Branco: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 2005 with 88.
  • Castelo Branco: days with a maximum temperature at or above 35 C (95 F) in 17 years, most in 2010 with 36.
  • Castelo Branco: days with a maximum temperature at or above 90 F (32.2 C) in 17 years, most in 2010 with 68.
  • Castelo Branco: days with a maximum temperature at or above 100 F (37.8 C) in 15 years, most in 2003 with 16.
  • 8 fixed thresholds have at least one qualifying day at Castelo Branco.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at Castelo Branco Days per year at Castelo Branco with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 2005. 02550751001997: 521998: 672000: 662001: 732002: 672003: 752004: 832005: 882006: 792007: 552008: 562009: 812010: 862011: 782012: 822013: 862014: 61199720002002200420062008201020122014
Days per year at Castelo Branco with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 2005.
Days at or above 30 C (86 F) per year at Castelo Branco
YearDaysDecade average
19975259.5
19986759.5
20006672.3
20017372.3
20026772.3
20037572.3
20048372.3
20058872.3
20067972.3
20075572.3
20085672.3
20098172.3
20108678.6
20117878.6
20128278.6
20138678.6
20146178.6
First to last qualifying date each year at Castelo Branco For each year, a bar from the first to the last day at Castelo Branco meeting 30 C (86 F). 1997: 29 April 1997 to 3 October 19971998: 9 June 1998 to 18 September 19982000: 30 May 2000 to 15 September 20002001: 25 May 2001 to 17 September 20012002: 25 April 2002 to 12 September 20022003: 22 May 2003 to 26 September 20032004: 1 June 2004 to 4 October 20042005: 24 May 2005 to 1 October 20052006: 27 May 2006 to 19 September 20062007: 17 May 2007 to 24 September 20072008: 13 June 2008 to 15 September 20082009: 6 May 2009 to 12 October 20092010: 19 May 2010 to 14 September 20102011: 23 May 2011 to 14 October 20112012: 10 May 2012 to 22 September 20122013: 12 June 2013 to 23 September 20132014: 9 May 2014 to 5 September 2014199720012004200720102013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Castelo Branco meeting 30 C (86 F).
First to last qualifying date each year at Castelo Branco
YearFirst dateLast date
19971997-04-291997-10-03
19981998-06-091998-09-18
20002000-05-302000-09-15
20012001-05-252001-09-17
20022002-04-252002-09-12
20032003-05-222003-09-26
20042004-06-012004-10-04
20052005-05-242005-10-01
20062006-05-272006-09-19
20072007-05-172007-09-24
20082008-06-132008-09-15
20092009-05-062009-10-12
20102010-05-192010-09-14
20112011-05-232011-10-14
20122012-05-102012-09-22
20132013-06-122013-09-23
20142014-05-092014-09-05

Every Fixed Threshold

Fixed thresholds at Castelo Branco
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1788200561
35 C (95 F): Days1736201012
40 C (104 F): Days5320133
90 F (32.2 C): Days1768201037
100 F (37.8 C): Days1516200311
10 mm (0.39 in): Days with 10 mm or more rain10n/a31
25 mm (0.98 in): Days with 25 mm or more rain10n/a6
50 mm (1.97 in): Days with 50 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1997.

Download the Data

  • Data for Castelo Branco 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).