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

Worcester Threshold Days by Year (SF000227590)

11 fixed thresholds counted per year at Worcester (SF000227590): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Worcester Thresholds

  • Worcester: days with 10 mm (0.39 in) or more of precipitation in 112 years, most in 1977 with 19.
  • Worcester: days with 25 mm (0.98 in) or more of precipitation in 85 years, most in 1902 with 6.
  • Worcester: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 2016 with 150.
  • Worcester: days with a maximum temperature at or above 35 C (95 F) in 17 years, most in 2017 with 61.
  • 11 fixed thresholds have at least one qualifying day at Worcester.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at Worcester Days per year at Worcester with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 150 in 2016. 0501001502001: 1422005: 1182006: 1192007: 1232008: 1262013: 1102014: 1192015: 1362016: 1502017: 1492018: 1372019: 1402020: 1282021: 1172022: 1412024: 1412025: 96200120062008201420162018202020222025
Days per year at Worcester with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 150 in 2016.
Days at or above 30 C (86 F) per year at Worcester
YearDaysDecade average
2001142125.6
2005118125.6
2006119125.6
2007123125.6
2008126125.6
2013110134.4
2014119134.4
2015136134.4
2016150134.4
2017149134.4
2018137134.4
2019140134.4
2020128124.6
2021117124.6
2022141124.6
2024141124.6
202596124.6
First to last qualifying date each year at Worcester For each year, a bar from the first to the last day at Worcester meeting 30 C (86 F). 2001: 2 January 2001 to 31 December 20012005: 2 January 2005 to 31 December 20052006: 2 January 2006 to 29 December 20062007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082013: 5 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 20222024: 1 January 2024 to 31 December 20242025: 1 January 2025 to 31 December 2025200120072014201720202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Worcester meeting 30 C (86 F).
First to last qualifying date each year at Worcester
YearFirst dateLast date
20012001-01-022001-12-31
20052005-01-022005-12-31
20062006-01-022006-12-29
20072007-01-012007-12-31
20082008-01-012008-12-31
20132013-01-052013-12-31
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
20242024-01-012024-12-31
20252025-01-012025-12-31

Every Fixed Threshold

Fixed thresholds at Worcester
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days17150201696
35 C (95 F): Days1761201721
40 C (104 F): Days131620242
90 F (32.2 C): Days17113201658
100 F (37.8 C): Days173020163
110 F (43.3 C): Days2220152
0 C (32 F): Frost days (min7720143
20 C (68 F): Tropical nights (min1723201612
10 mm (0.39 in): Days with 10 mm or more rain11219197715
25 mm (0.98 in): Days with 25 mm or more rain85619022
50 mm (1.97 in): Days with 50 mm or more rain6219852

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2001.

Download the Data

  • Data for Worcester 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).