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Built 2026-10-18 (18 October 2026)

Roma Airport Threshold Days by Year

14 fixed thresholds counted per year at Roma Airport (ASN00043091): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Roma Airport Thresholds

  • Roma Airport: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 2010 with 31.
  • Roma Airport: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1988 with 12.
  • Roma Airport: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 2013 with 186.
  • Roma Airport: days with a maximum temperature at or above 35 C (95 F) in 34 years, most in 2019 with 117.
  • 14 fixed thresholds have at least one qualifying day at Roma Airport.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Roma Airport Days per year at Roma Airport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 186 in 2013. 0501001502001993: 1511994: 1091995: 1331996: 1461997: 1401998: 1441999: 1132000: 1262001: 1392002: 1792003: 1502004: 1642005: 1742006: 1592007: 1382008: 1162009: 1812010: 852011: 1222012: 1552013: 1862014: 1722015: 1772016: 1752017: 1562018: 1772019: 1862020: 1562021: 1432022: 1292023: 1802024: 1792025: 1722026: 106199319972001200520092013201720212025
Days per year at Roma Airport with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 186 in 2013.
Days at or above 30 C (86 F) per year at Roma Airport
YearDaysDecade average
1993151133.7
1994109133.7
1995133133.7
1996146133.7
1997140133.7
1998144133.7
1999113133.7
2000126152.6
2001139152.6
2002179152.6
2003150152.6
2004164152.6
2005174152.6
2006159152.6
2007138152.6
2008116152.6
2009181152.6
201085159.1
2011122159.1
2012155159.1
2013186159.1
2014172159.1
2015177159.1
2016175159.1
2017156159.1
2018177159.1
2019186159.1
2020156152.1
2021143152.1
2022129152.1
2023180152.1
2024179152.1
2025172152.1
2026106152.1
First to last qualifying date each year at Roma Airport For each year, a bar from the first to the last day at Roma Airport meeting 30 C (86 F). 1993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 30 December 19981999: 4 January 1999 to 30 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 29 December 20062007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 29 December 20092010: 2 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20112012: 1 January 2012 to 29 December 20122013: 4 January 2013 to 31 December 20132014: 1 January 2014 to 31 December 20142015: 1 January 2015 to 31 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 31 December 20192020: 1 January 2020 to 31 December 20202021: 1 January 2021 to 31 December 20212022: 1 January 2022 to 31 December 20222023: 1 January 2023 to 31 December 20232024: 1 January 2024 to 31 December 20242025: 2 January 2025 to 31 December 20252026: 1 January 2026 to 8 October 20261993199820032008201320182023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Roma Airport meeting 30 C (86 F).
First to last qualifying date each year at Roma Airport
YearFirst dateLast date
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-30
19991999-01-041999-12-30
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-31
20052005-01-012005-12-31
20062006-01-012006-12-29
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-29
20102010-01-022010-12-31
20112011-01-012011-12-31
20122012-01-012012-12-29
20132013-01-042013-12-31
20142014-01-012014-12-31
20152015-01-012015-12-31
20162016-01-012016-12-31
20172017-01-012017-12-31
20182018-01-012018-12-31
20192019-01-012019-12-31
20202020-01-012020-12-31
20212021-01-012021-12-31
20222022-01-012022-12-31
20232023-01-012023-12-31
20242024-01-012024-12-31
20252025-01-022025-12-31
20262026-01-012026-10-08

Every Fixed Threshold

Fixed thresholds at Roma Airport
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days341862013106
35 C (95 F): Days34117201934
40 C (104 F): Days282220198
45 C (113 F): Days3120131
90 F (32.2 C): Days34161201974
100 F (37.8 C): Days3462201918
110 F (43.3 C): Days12320131
0 C (32 F): Frost days (min3349199410
20 C (68 F): Tropical nights (min33100202456
25 C (77 F): Days with min261620064
10 mm (0.39 in): Days with 10 mm or more rain403120109
25 mm (0.98 in): Days with 25 mm or more rain401219884
50 mm (1.97 in): Days with 50 mm or more rain33520101
100 mm (3.94 in): Days with 100 mm or more rain6119891

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 Roma Airport 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).