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Built 2026-10-17 (17 October 2026)

Ipswich Threshold Days by Year

12 fixed thresholds counted per year at Ipswich (ASN00040101): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ipswich Thresholds

  • Ipswich: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1890 with 40.
  • Ipswich: days with 25 mm (0.98 in) or more of precipitation in 101 years, most in 1893 with 21.
  • Ipswich: days with 50 mm (1.97 in) or more of precipitation in 91 years, most in 1893 with 11.
  • Ipswich: days with 100 mm (3.94 in) or more of precipitation in 26 years, most in 1893 with 2.
  • 12 fixed thresholds have at least one qualifying day at Ipswich.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Ipswich Days per year at Ipswich with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1991. 0501001501989: 831990: 1101991: 1201992: 901993: 11419891990199119921993
Days per year at Ipswich with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 120 in 1991.
Days at or above 30 C (86 F) per year at Ipswich
YearDaysDecade average
19898383
1990110108.5
1991120108.5
199290108.5
1993114108.5
First to last qualifying date each year at Ipswich For each year, a bar from the first to the last day at Ipswich meeting 30 C (86 F). 1989: 2 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 30 December 19911992: 5 January 1992 to 31 December 19921993: 1 January 1993 to 30 December 199319891990199119921993JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ipswich meeting 30 C (86 F).
First to last qualifying date each year at Ipswich
YearFirst dateLast date
19891989-01-021989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-30
19921992-01-051992-12-31
19931993-01-011993-12-30

Every Fixed Threshold

Fixed thresholds at Ipswich
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days51201991114
35 C (95 F): Days521199019
40 C (104 F): Days1219902
90 F (32.2 C): Days568199368
100 F (37.8 C): Days4519902
20 C (68 F): Tropical nights (min582199061
25 C (77 F): Days with min4219911
10 mm (0.39 in): Days with 10 mm or more rain10140189012
25 mm (0.98 in): Days with 25 mm or more rain1012118934
50 mm (1.97 in): Days with 50 mm or more rain911118933
100 mm (3.94 in): Days with 100 mm or more rain26218932
200 mm (7.87 in): Days with 200 mm or more rain3118871

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1989.

Download the Data

  • Data for Ipswich 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 (2026-10-16).