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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Ulithi Threshold Days by Year (FMC00914892)

10 fixed thresholds counted per year at Ulithi (FMC00914892): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ulithi Thresholds

  • Ulithi: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 2011 with 95.
  • Ulithi: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 2011 with 48.
  • Ulithi: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 2001 with 15.
  • Ulithi: days with 100 mm (3.94 in) or more of precipitation in 19 years, most in 2002 with 3.
  • 10 fixed thresholds have at least one qualifying day at Ulithi.
10 years with a qualifying day
Days at or above 30 C (86 F) per year at Ulithi Days per year at Ulithi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 352 in 1998. 01002003004001990: 3041991: 2911993: 2941995: 3021997: 2761998: 3521999: 3292000: 3082001: 3362002: 3211990199119931995199719981999200020012002
Days per year at Ulithi with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 352 in 1998.
Days at or above 30 C (86 F) per year at Ulithi
YearDaysDecade average
1990304306.9
1991291306.9
1993294306.9
1995302306.9
1997276306.9
1998352306.9
1999329306.9
2000308321.7
2001336321.7
2002321321.7
First to last qualifying date each year at Ulithi For each year, a bar from the first to the last day at Ulithi meeting 30 C (86 F). 1990: 3 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911993: 3 January 1993 to 31 December 19931995: 1 January 1995 to 31 December 19951997: 2 January 1997 to 31 December 19971998: 1 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992000: 1 January 2000 to 31 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 200219901993199719992001JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ulithi meeting 30 C (86 F).
First to last qualifying date each year at Ulithi
YearFirst dateLast date
19901990-01-031990-12-31
19911991-01-011991-12-31
19931993-01-031993-12-31
19951995-01-011995-12-31
19971997-01-021997-12-31
19981998-01-011998-12-31
19991999-01-011999-12-31
20002000-01-012000-12-31
20012001-01-012001-12-31
20022002-01-012002-12-31

Every Fixed Threshold

Fixed thresholds at Ulithi
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days103521998321
35 C (95 F): Days4219951
90 F (32.2 C): Days10113200184
20 C (68 F): Tropical nights (min103651999365
25 C (77 F): Days with min102692002269
10 mm (0.39 in): Days with 10 mm or more rain2295201134
25 mm (0.98 in): Days with 25 mm or more rain2248201116
50 mm (1.97 in): Days with 50 mm or more rain221520012
100 mm (3.94 in): Days with 100 mm or more rain19320023
200 mm (7.87 in): Days with 200 mm or more rain1120141

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1990.

Download the Data

  • Data for Ulithi 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).