Ulithi Weather Records (FMC00914892)

Record envelope, standing records and threshold days for Ulithi (FMC00914892), FM, Federated States of Micronesia, with 38 years of record.

Key Facts for Ulithi

Ulithi (FMC00914892) is a weather station in FM, Federated States of Micronesia at 10.03 latitude and 139.80 longitude, 2 m (6 ft) above sea level.
The station reports from 1989 to 2026, 38 years of record.
1,464 records set at Ulithi still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Ulithi set a daily record precipitation of 57.9 mm (2.3 in) on 20 August 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: FM, Federated States of Micronesia, 10.03 latitude, 139.80 longitude.
Elevation: 2 m (6 ft).
Period of record: 1989 to 2026, 38 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Ulithi. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Ulithi, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	32.8 C (91.0 F)	20.0 C (68.0 F)	n/a	n/a
Feb	33.3 C (91.9 F)	19.4 C (66.9 F)	n/a	n/a
Mar	33.3 C (91.9 F)	21.1 C (70.0 F)	n/a	n/a
Apr	34.4 C (93.9 F)	16.7 C (62.1 F)	n/a	n/a
May	34.4 C (93.9 F)	21.1 C (70.0 F)	n/a	n/a
Jun	34.4 C (93.9 F)	20.0 C (68.0 F)	n/a	n/a
Jul	35.0 C (95.0 F)	17.8 C (64.0 F)	n/a	n/a
Aug	35.0 C (95.0 F)	18.9 C (66.0 F)	n/a	n/a
Sep	37.2 C (99.0 F)	18.9 C (66.0 F)	n/a	n/a
Oct	35.6 C (96.1 F)	18.9 C (66.0 F)	n/a	n/a
Nov	33.9 C (93.0 F)	20.6 C (69.1 F)	n/a	n/a
Dec	36.1 C (97.0 F)	21.1 C (70.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ulithi still stand. 1997 holds the most, with 170.

Wettest Day of Each Month

Jan: 251.2 mm (9.9 in)

The wettest day on record for each calendar month at Ulithi. The most was 251.2 mm (9.9 in) on 8 January 2017.

Record daily precipitation for each month at Ulithi
Month	Record daily precipitation (mm)	Date
Jan	251.2 mm (9.9 in)	8 January 2017
Feb	107.4 mm (4.2 in)	7 February 1997
Mar	101.1 mm (4.0 in)	23 March 2010
Apr	153.9 mm (6.1 in)	10 April 2022
May	119.4 mm (4.7 in)	5 May 2015
Jun	171.2 mm (6.7 in)	22 June 1997
Jul	201.4 mm (7.9 in)	4 July 2014
Aug	191.5 mm (7.5 in)	7 August 2006
Sep	132.8 mm (5.2 in)	8 September 2021
Oct	199.9 mm (7.9 in)	24 October 2017
Nov	128.8 mm (5.1 in)	5 November 2001
Dec	154.9 mm (6.1 in)	7 December 2006

Period of Record Coverage

1989 to 2004

16 years of record at Ulithi, 1989 to 2004. 6 years have data for under 90 percent of days and are left out of rankings: 1989, 1992, 1994, 1996, 2003, 2004.

Days with data per year at Ulithi
Year	Days with data	Share of year	Complete
1989	149	41%	No
1990	358	98%	Yes
1991	355	97%	Yes
1992	319	87%	No
1993	355	97%	Yes
1994	325	89%	No
1995	359	98%	Yes
1996	223	61%	No
1997	363	99%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	334	91%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	288	79%	No
2004	116	32%	No

Latest Records

Latest records at Ulithi
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 2026	Ulithi, FM	daily rain (Provisional)	57.9 mm (2.3 in)	6.3 mm (0.25 in)	32 years	14 of 100 (Routine)
28 December 2024	Ulithi, FM	daily rain	24.4 mm (1.0 in)	4.3 mm (0.17 in)	4 years	6 of 100 (Routine)
14 November 2024	Ulithi, FM	daily rain	66.0 mm (2.6 in)	50.8 mm (2.0 in)	15 years	41 of 100 (Notable)
9 November 2024	Ulithi, FM	daily rain	94.0 mm (3.7 in)	57.7 mm (2.3 in)	6 years	43 of 100 (Notable)
22 October 2024	Ulithi, FM	daily rain	101.6 mm (4.0 in)	33.5 mm (1.3 in)	31 years	28 of 100 (Routine)
13 September 2024	Ulithi, FM	daily rain	104.1 mm (4.1 in)	1.0 mm (0.04 in)	6 years	4 of 100 (Routine)
16 July 2024	Ulithi, FM	daily rain	97.3 mm (3.8 in)	53.1 mm (2.1 in)	27 years	38 of 100 (Notable)
22 May 2024	Ulithi, FM	daily rain	68.6 mm (2.7 in)	9.4 mm (0.37 in)	29 years	18 of 100 (Routine)
1 February 2024	Ulithi, FM	daily rain	11.4 mm (0.4 in)	2.3 mm (0.09 in)	26 years	12 of 100 (Routine)
30 January 2024	Ulithi, FM	daily rain	38.1 mm (1.5 in)	12.7 mm (0.5 in)	28 years	17 of 100 (Routine)

Extremes by Year

1989 to 2026

Yearly extremes at Ulithi: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.2 C (99.0 F)	1995	33.9 C (93.0 F)	16
Coldest night (TNn)	16.7 C (62.1 F)	2004	20.6 C (69.1 F)	16
Wettest day (Rx1day)	251.2 mm (9.9 in)	2017	115.1 mm (4.5 in)	38
Wettest five days (Rx5day)	379.2 mm (14.9 in)	2024	210.7 mm (8.3 in)	38
Longest dry spell (CDD)	25 days	2024	10 days	37

Hottest day (TXx)

The hottest day of the year at Ulithi, 1989 to 2026. The record is 37.2 C (99.0 F) in 1995, marked on the chart; the median year is 33.9 C (93.0 F).

Hottest day (TXx) at Ulithi by year
Year	Hottest day (TXx)
1989	33.9 C (93.0 F)
1990	33.9 C (93.0 F)
1991	35.0 C (95.0 F)
1992	34.4 C (93.9 F)
1993	33.9 C (93.0 F)
1994	33.9 C (93.0 F)
1995	37.2 C (99.0 F)
1996	33.9 C (93.0 F)
1997	34.4 C (93.9 F)
1998	35.6 C (96.1 F)
1999	33.3 C (91.9 F)
2000	35.0 C (95.0 F)
2001	34.4 C (93.9 F)
2002	33.3 C (91.9 F)
2003	33.9 C (93.0 F)
2004	33.3 C (91.9 F)
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at Ulithi, 1989 to 2026. The record is 16.7 C (62.1 F) in 2004, marked on the chart; the median year is 20.6 C (69.1 F).

Coldest night (TNn) at Ulithi by year
Year	Coldest night (TNn)
1989	22.2 C (72.0 F)
1990	21.7 C (71.1 F)
1991	20.0 C (68.0 F)
1992	20.6 C (69.1 F)
1993	21.1 C (70.0 F)
1994	21.1 C (70.0 F)
1995	20.6 C (69.1 F)
1996	19.4 C (66.9 F)
1997	19.4 C (66.9 F)
1998	17.8 C (64.0 F)
1999	21.1 C (70.0 F)
2000	20.0 C (68.0 F)
2001	20.0 C (68.0 F)
2002	21.7 C (71.1 F)
2003	21.7 C (71.1 F)
2004	16.7 C (62.1 F)
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	n/a
2013	n/a
2014	n/a
2015	n/a
2016	n/a
2017	n/a
2018	n/a
2019	n/a
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at Ulithi, 1989 to 2026. The record is 251.2 mm (9.9 in) in 2017, marked on the chart; the median year is 115.1 mm (4.5 in).

Wettest day (Rx1day) at Ulithi by year
Year	Wettest day (Rx1day)
1989	164.1 mm (6.5 in)
1990	121.9 mm (4.8 in)
1991	128.3 mm (5.1 in)
1992	81.5 mm (3.2 in)
1993	125.2 mm (4.9 in)
1994	108.0 mm (4.3 in)
1995	104.4 mm (4.1 in)
1996	100.1 mm (3.9 in)
1997	171.2 mm (6.7 in)
1998	77.0 mm (3.0 in)
1999	122.4 mm (4.8 in)
2000	100.6 mm (4.0 in)
2001	128.8 mm (5.1 in)
2002	111.8 mm (4.4 in)
2003	118.4 mm (4.7 in)
2004	128.8 mm (5.1 in)
2005	106.2 mm (4.2 in)
2006	191.5 mm (7.5 in)
2007	92.5 mm (3.6 in)
2008	81.8 mm (3.2 in)
2009	42.4 mm (1.7 in)
2010	101.1 mm (4.0 in)
2011	130.6 mm (5.1 in)
2012	82.0 mm (3.2 in)
2013	107.4 mm (4.2 in)
2014	201.4 mm (7.9 in)
2015	119.4 mm (4.7 in)
2016	142.7 mm (5.6 in)
2017	251.2 mm (9.9 in)
2018	103.1 mm (4.1 in)
2019	43.9 mm (1.7 in)
2020	177.3 mm (7.0 in)
2021	132.8 mm (5.2 in)
2022	153.9 mm (6.1 in)
2023	120.7 mm (4.8 in)
2024	104.1 mm (4.1 in)
2025	15.2 mm (0.6 in)
2026	57.9 mm (2.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ulithi, 1989 to 2026. The record is 379.2 mm (14.9 in) in 2024, marked on the chart; the median year is 210.7 mm (8.3 in).

Wettest five days (Rx5day) at Ulithi by year
Year	Wettest five days (Rx5day)
1989	280.5 mm (11.0 in)
1990	197.3 mm (7.8 in)
1991	205.0 mm (8.1 in)
1992	124.9 mm (4.9 in)
1993	318.0 mm (12.5 in)
1994	201.6 mm (7.9 in)
1995	257.2 mm (10.1 in)
1996	276.9 mm (10.9 in)
1997	321.9 mm (12.7 in)
1998	213.9 mm (8.4 in)
1999	233.1 mm (9.2 in)
2000	185.6 mm (7.3 in)
2001	238.0 mm (9.4 in)
2002	220.1 mm (8.7 in)
2003	132.6 mm (5.2 in)
2004	258.3 mm (10.2 in)
2005	174.3 mm (6.9 in)
2006	369.9 mm (14.6 in)
2007	168.1 mm (6.6 in)
2008	153.7 mm (6.1 in)
2009	98.3 mm (3.9 in)
2010	188.0 mm (7.4 in)
2011	284.0 mm (11.2 in)
2012	134.3 mm (5.3 in)
2013	169.1 mm (6.7 in)
2014	273.6 mm (10.8 in)
2015	285.6 mm (11.2 in)
2016	280.8 mm (11.1 in)
2017	336.8 mm (13.3 in)
2018	207.5 mm (8.2 in)
2019	106.9 mm (4.2 in)
2020	193.8 mm (7.6 in)
2021	200.9 mm (7.9 in)
2022	274.1 mm (10.8 in)
2023	220.5 mm (8.7 in)
2024	379.2 mm (14.9 in)
2025	56.9 mm (2.2 in)
2026	153.2 mm (6.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ulithi, 1989 to 2026. The record is 25 days in 2024, marked on the chart; the median year is 10 days.

Longest dry spell (CDD) at Ulithi by year
Year	Longest dry spell (CDD)
1989	11 days
1990	9 days
1991	18 days
1992	10 days
1993	10 days
1994	12 days
1995	11 days
1996	8 days
1997	11 days
1998	19 days
1999	10 days
2000	6 days
2001	6 days
2002	10 days
2003	12 days
2004	9 days
2005	6 days
2006	8 days
2007	8 days
2008	15 days
2009	8 days
2010	8 days
2011	6 days
2012	10 days
2013	4 days
2014	24 days
2015	15 days
2016	18 days
2017	8 days
2018	8 days
2019	4 days
2020	11 days
2021	6 days
2022	6 days
2023	7 days
2024	25 days
2025	n/a
2026	13 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for Ulithi standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-13. Last revised 13 October 2026 (2026-10-13).