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Pago Pago WSO AP Weather Records (AQW00061705)

Record envelope, standing records and threshold days for Pago Pago WSO AP (AQW00061705), AS, American Samoa [United States], with 61 years of record.

Key Facts for Pago Pago WSO AP

  • Pago Pago WSO AP (AQW00061705) is a weather station in AS, American Samoa [United States] at -14.33 latitude and -170.71 longitude, 4 m (12 ft) above sea level.
  • The station reports from 1966 to 2026, 61 years of record.
  • 1,464 records set at Pago Pago WSO AP still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Pago Pago WSO AP set a daily record low maximum temperature of 27.2 C (81.0 F) on 28 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: AS, American Samoa [United States], -14.33 latitude, -170.71 longitude.
  • Elevation: 4 m (12 ft).
  • Period of record: 1966 to 2026, 61 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

3 days at or beyond a record
Daily record high and record low at Pago Pago WSO AP, with 2026 drawn through them The band shows the record high and record low for each calendar day at Pago Pago WSO AP. The lines show the 2026 daily maximum and minimum. 3 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 152025303540 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Pago Pago WSO AP. The lines show the 2026 daily maximum and minimum. 3 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Pago Pago WSO AP, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan35.0 C (95.0 F)20.6 C (69.1 F)32.8 C (91.0 F)23.9 C (75.0 F)
Feb35.6 C (96.1 F)21.1 C (70.0 F)32.8 C (91.0 F)23.9 C (75.0 F)
Mar35.0 C (95.0 F)20.6 C (69.1 F)32.8 C (91.0 F)23.9 C (75.0 F)
Apr35.0 C (95.0 F)20.0 C (68.0 F)32.8 C (91.0 F)25.0 C (77.0 F)
May33.9 C (93.0 F)18.9 C (66.0 F)31.7 C (89.1 F)21.7 C (71.1 F)
Jun35.0 C (95.0 F)18.3 C (64.9 F)30.0 C (86.0 F)22.8 C (73.0 F)
Jul32.8 C (91.0 F)17.8 C (64.0 F)30.6 C (87.1 F)22.2 C (72.0 F)
Aug33.3 C (91.9 F)17.8 C (64.0 F)30.6 C (87.1 F)21.7 C (71.1 F)
Sep33.3 C (91.9 F)17.2 C (63.0 F)30.6 C (87.1 F)22.8 C (73.0 F)
Oct34.4 C (93.9 F)19.4 C (66.9 F)30.0 C (86.0 F)23.3 C (73.9 F)
Nov35.0 C (95.0 F)20.0 C (68.0 F)n/an/a
Dec34.4 C (93.9 F)20.0 C (68.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Pago Pago WSO AP by the year they were set 1,464 records at Pago Pago WSO AP still stand. 1998 holds the most, with 154. 0501001502001966: 351967: 621968: 541969: 321970: 331971: 591972: 441973: 241974: 441975: 211976: 301977: 141978: 231979: 211980: 191981: 161982: 201983: 151984: 91985: 141986: 121987: 201988: 111989: 151990: 111991: 191992: 151993: 111994: 151995: 441996: 401997: 301998: 1541999: 172000: 302001: 382002: 512003: 122004: 242005: 112006: 62007: 262008: 112009: 212010: 162011: 102012: 72013: 62014: 162015: 202016: 282017: 102018: 122019: 62020: 132021: 112022: 122023: 272024: 222025: 92026: 6196619731980198719942001200820152022
1,464 records at Pago Pago WSO AP still stand. 1998 holds the most, with 154.
Standing records at Pago Pago WSO AP by the year they were set
Year setStanding records
196635
196762
196854
196932
197033
197159
197244
197324
197444
197521
197630
197714
197823
197921
198019
198116
198220
198315
19849
198514
198612
198720
198811
198915
199011
199119
199215
199311
199415
199544
199640
199730
1998154
199917
200030
200138
200251
200312
200424
200511
20066
200726
200811
200921
201016
201110
20127
20136
201416
201520
201628
201710
201812
20196
202013
202111
202212
202327
202422
20259
20266

All-Time Record Progression

4 new records
When Pago Pago WSO AP set new all-time records 4 all-time records were set at Pago Pago WSO AP between 7 January 1997 and 19 May 2003. Each dot is a new record. Record daily precipitationRecord high maximum temperatureRecord high minimum temperature7 January 1997: Record daily precipitation 262.6 mm (10.3 in)27 February 1998: Record high maximum temperature 35.6 C (96.1 F)25 November 1998: Record high minimum temperature 30.0 C (86.0 F)19 May 2003: Record daily precipitation 271.3 mm (10.7 in)2000
4 all-time records were set at Pago Pago WSO AP between 7 January 1997 and 19 May 2003. Each dot is a new record.
When Pago Pago WSO AP set new all-time records
DateKindDetail
1997-01-07Record daily precipitationRecord daily precipitation 262.6 mm (10.3 in)
1998-02-27Record high maximum temperatureRecord high maximum temperature 35.6 C (96.1 F)
1998-11-25Record high minimum temperatureRecord high minimum temperature 30.0 C (86.0 F)
2003-05-19Record daily precipitationRecord daily precipitation 271.3 mm (10.7 in)

Wettest Day of Each Month

May: 271.3 mm (10.7 in)
Record daily precipitation for each month at Pago Pago WSO AP The wettest day on record for each calendar month at Pago Pago WSO AP. The most was 271.3 mm (10.7 in) on 19 May 2003. 0100200300 Jan: 262.6 mm (10.3 in), 7 January 1997 Jan Feb: 209.6 mm (8.3 in), 3 February 1990 Feb Mar: 133.4 mm (5.3 in), 2 March 1981 Mar Apr: 258.6 mm (10.2 in), 29 April 1975 Apr May: 271.3 mm (10.7 in), 19 May 2003 May Jun: 178.2 mm (7.0 in), 5 June 2013 Jun Jul: 154.9 mm (6.1 in), 31 July 2014 Jul Aug: 147.8 mm (5.8 in), 10 August 1978 Aug Sep: 210.8 mm (8.3 in), 1 September 2012 Sep Oct: 190.5 mm (7.5 in), 9 October 1967 Oct Nov: 192.0 mm (7.6 in), 5 November 2012 Nov Dec: 202.9 mm (8.0 in), 9 December 1991 Dec
The wettest day on record for each calendar month at Pago Pago WSO AP. The most was 271.3 mm (10.7 in) on 19 May 2003.
Record daily precipitation for each month at Pago Pago WSO AP
MonthRecord daily precipitation (mm)Date
Jan262.6 mm (10.3 in)7 January 1997
Feb209.6 mm (8.3 in)3 February 1990
Mar133.4 mm (5.3 in)2 March 1981
Apr258.6 mm (10.2 in)29 April 1975
May271.3 mm (10.7 in)19 May 2003
Jun178.2 mm (7.0 in)5 June 2013
Jul154.9 mm (6.1 in)31 July 2014
Aug147.8 mm (5.8 in)10 August 1978
Sep210.8 mm (8.3 in)1 September 2012
Oct190.5 mm (7.5 in)9 October 1967
Nov192.0 mm (7.6 in)5 November 2012
Dec202.9 mm (8.0 in)9 December 1991

Period of Record Coverage

1966 to 2026
Days with data per year at Pago Pago WSO AP 61 years of record at Pago Pago WSO AP, 1966 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1966, 2026. 1966: 275 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 337 of 366 days2025: 365 of 365 days2026: 287 of 365 days197019801990200020102020
61 years of record at Pago Pago WSO AP, 1966 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1966, 2026.
Days with data per year at Pago Pago WSO AP
YearDays with dataShare of yearComplete
196627575%No
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
202433792%Yes
2025365100%Yes
202628779%No

Latest Records

20
Latest records at Pago Pago WSO AP
DateStationRecordValueBeat old record byOld record stoodSignificance
28 September 2026Pago Pago WSO AP, ASdaily low max (Provisional)27.2 C (81.0 F)0.6 C (1.1 F)55 years26 of 100 (Routine)
18 September 2026Pago Pago WSO AP, ASdaily low max (Tie, Provisional)27.2 C (81.0 F)tie20 years3 of 100 (Routine)
14 September 2026Pago Pago WSO AP, ASdaily low max (Provisional)25.6 C (78.1 F)0.8 C (1.4 F)11 years15 of 100 (Routine)
13 September 2026Pago Pago WSO AP, ASdaily low max (Provisional)26.7 C (80.1 F)0.2 C (0.4 F)11 years10 of 100 (Routine)
8 August 2026Pago Pago WSO AP, ASdaily low max (Tie)26.1 C (79.0 F)tie59 years5 of 100 (Routine)
7 August 2026Pago Pago WSO AP, ASdaily low max25.0 C (77.0 F)0.8 C (1.4 F)8 years14 of 100 (Routine)
30 July 2026Pago Pago WSO AP, ASdaily low max (Tie)25.6 C (78.1 F)tie59 years5 of 100 (Routine)
29 July 2026Pago Pago WSO AP, ASdaily low max25.6 C (78.1 F)0.4 C (0.7 F)12 years12 of 100 (Routine)
28 July 2026Pago Pago WSO AP, ASdaily low max (Tie)26.1 C (79.0 F)tie59 years5 of 100 (Routine)
18 July 2026Pago Pago WSO AP, ASdaily low max26.1 C (79.0 F)0.1 C (0.2 F)9 years8 of 100 (Routine)
15 July 2026Pago Pago WSO AP, ASdaily low max (Tie)26.7 C (80.1 F)tie60 years6 of 100 (Routine)
14 July 2026Pago Pago WSO AP, ASdaily low max (Tie)25.6 C (78.1 F)tie13 years2 of 100 (Routine)
8 July 2026Pago Pago WSO AP, ASdaily low max (Tie)26.1 C (79.0 F)tie56 years5 of 100 (Routine)
6 July 2026Pago Pago WSO AP, ASdaily low max (Tie)26.1 C (79.0 F)tie56 years5 of 100 (Routine)
4 July 2026Pago Pago WSO AP, ASdaily low max (Tie)26.1 C (79.0 F)tie40 years4 of 100 (Routine)
1 July 2026Pago Pago WSO AP, ASdaily rain66.3 mm (2.6 in)1.5 mm (0.06 in)59 years23 of 100 (Routine)
1 July 2026Pago Pago WSO AP, ASmonthly low max (Tie)25.0 C (77.0 F)tie44 years7 of 100 (Routine)
30 June 2026Pago Pago WSO AP, ASdaily low max (Tie)26.7 C (80.1 F)tie52 years5 of 100 (Routine)
21 June 2026Pago Pago WSO AP, ASdaily low max (Tie)26.7 C (80.1 F)tie60 years6 of 100 (Routine)
20 June 2026Pago Pago WSO AP, ASdaily low max26.7 C (80.1 F)0.3 C (0.5 F)3 years8 of 100 (Routine)

Climate Trend

58 complete years, 1967 to 2025
Annual mean temperature at Pago Pago WSO AP as warming stripes, 1967 to 2025 One stripe for each of 58 complete years at Pago Pago WSO AP, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 27.4 C (81.4 F); red stripes are warmer. The coolest year was 1971, at 26.2 C (79.2 F), and the warmest was 1998, at 29.2 C (84.5 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1967: 26.3 C, -1.2 C from the station mean1968: 26.4 C, -1.0 C from the station mean1969: 26.7 C, -0.7 C from the station mean1970: 26.6 C, -0.8 C from the station mean1971: 26.2 C, -1.2 C from the station mean1972: 26.7 C, -0.7 C from the station mean1973: 27.1 C, -0.4 C from the station mean1974: 26.4 C, -1.0 C from the station mean1975: 26.7 C, -0.8 C from the station mean1976: 26.5 C, -1.0 C from the station mean1977: 26.9 C, -0.5 C from the station mean1978: 26.7 C, -0.7 C from the station mean1979: 27.0 C, -0.5 C from the station mean1980: 27.1 C, -0.3 C from the station mean1981: 26.8 C, -0.6 C from the station mean1982: 27.0 C, -0.5 C from the station mean1983: 27.0 C, -0.4 C from the station mean1984: 27.0 C, -0.5 C from the station mean1985: 27.0 C, -0.4 C from the station mean1986: 27.1 C, -0.4 C from the station mean1987: 27.0 C, -0.4 C from the station mean1988: 27.2 C, -0.2 C from the station mean1989: 26.9 C, -0.6 C from the station mean1990: 27.3 C, -0.2 C from the station mean1991: 27.5 C, 0.0 C from the station mean1992: 27.5 C, 0.0 C from the station mean1993: 27.2 C, -0.2 C from the station mean1994: 27.6 C, +0.2 C from the station mean1995: 28.2 C, +0.7 C from the station mean1996: 28.1 C, +0.6 C from the station mean1997: 28.2 C, +0.7 C from the station mean1998: 29.2 C, +1.7 C from the station mean1999: 27.6 C, +0.1 C from the station mean2000: 28.0 C, +0.6 C from the station mean2001: 28.3 C, +0.8 C from the station mean2002: 28.6 C, +1.2 C from the station mean2003: 28.0 C, +0.5 C from the station mean2004: 27.7 C, +0.2 C from the station mean2005: 28.1 C, +0.7 C from the station mean2006: 27.8 C, +0.4 C from the station mean2007: 28.5 C, +1.1 C from the station mean2008: 28.2 C, +0.7 C from the station mean2009: 28.0 C, +0.5 C from the station mean2010: 28.0 C, +0.5 C from the station mean2011: 27.3 C, -0.1 C from the station mean2012: 27.4 C, 0.0 C from the station mean2013: 27.8 C, +0.3 C from the station mean2014: 27.6 C, +0.2 C from the station mean2015: 27.5 C, 0.0 C from the station mean2016: 28.1 C, +0.6 C from the station mean2017: 27.9 C, +0.4 C from the station mean2018: 27.7 C, +0.2 C from the station mean2019: 28.0 C, +0.5 C from the station mean2020: 27.9 C, +0.4 C from the station mean2021: 27.8 C, +0.3 C from the station mean2022: 27.7 C, +0.3 C from the station mean2023: 27.9 C, +0.5 C from the station mean2025: 27.7 C, +0.2 C from the station mean196719751980198519901995200020052010201520202025
One stripe for each of 58 complete years at Pago Pago WSO AP, 1967 to 2025. Blue stripes are years cooler than the station's own mean of 27.4 C (81.4 F); red stripes are warmer. The coolest year was 1971, at 26.2 C (79.2 F), and the warmest was 1998, at 29.2 C (84.5 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Pago Pago WSO AP as warming stripes, 1967 to 2025
YearAnnual mean temperatureDifference from the station mean
196726.3 C-1.19 C
196826.4 C-1.01 C
196926.7 C-0.73 C
197026.6 C-0.82 C
197126.2 C-1.24 C
197226.7 C-0.70 C
197327.1 C-0.38 C
197426.4 C-1.01 C
197526.7 C-0.78 C
197626.5 C-0.95 C
197726.9 C-0.51 C
197826.7 C-0.71 C
197927.0 C-0.48 C
198027.1 C-0.34 C
198126.8 C-0.63 C
198227.0 C-0.48 C
198327.0 C-0.42 C
198427.0 C-0.48 C
198527.0 C-0.44 C
198627.1 C-0.35 C
198727.0 C-0.41 C
198827.2 C-0.20 C
198926.9 C-0.56 C
199027.3 C-0.18 C
199127.5 C+0.02 C
199227.5 C+0.03 C
199327.2 C-0.21 C
199427.6 C+0.20 C
199528.2 C+0.72 C
199628.1 C+0.65 C
199728.2 C+0.71 C
199829.2 C+1.73 C
199927.6 C+0.13 C
200028.0 C+0.60 C
200128.3 C+0.85 C
200228.6 C+1.19 C
200328.0 C+0.53 C
200427.7 C+0.21 C
200528.1 C+0.67 C
200627.8 C+0.36 C
200728.5 C+1.07 C
200828.2 C+0.72 C
200928.0 C+0.53 C
201028.0 C+0.52 C
201127.3 C-0.10 C
201227.4 C-0.01 C
201327.8 C+0.33 C
201427.6 C+0.18 C
201527.5 C+0.04 C
201628.1 C+0.64 C
201727.9 C+0.43 C
201827.7 C+0.25 C
201928.0 C+0.53 C
202027.9 C+0.43 C
202127.8 C+0.31 C
202227.7 C+0.27 C
202327.9 C+0.48 C
202527.7 C+0.22 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1967 to 2025. In Fahrenheit: 0.5 F (0.4 to 0.6) per decade. The slope is a straight line fitted to 58 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pago Pago WSO AP
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.2 to 0.3) per decade0.5 F (0.4 to 0.6) per decade1967 to 202558Rise
Mean daily maximum0.2 C (0.1 to 0.2) per decade0.3 F (0.2 to 0.4) per decade1967 to 202558Rise
Mean daily minimum0.4 C (0.3 to 0.5) per decade0.7 F (0.6 to 0.9) per decade1967 to 202558Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1966 to 2026
Yearly extremes at Pago Pago WSO AP: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)199833.3 C (91.9 F)61
Coldest night (TNn)17.2 C (63.0 F)197021.0 C (69.8 F)61
Wettest day (Rx1day)271.3 mm (10.7 in)2003144.5 mm (5.7 in)61
Wettest five days (Rx5day)639.8 mm (25.2 in)1997307.7 mm (12.1 in)61
Longest dry spell (CDD)31 days19879 days61

Hottest day (TXx)

Hottest day (TXx) at Pago Pago WSO AP by year The hottest day of the year at Pago Pago WSO AP, 1966 to 2026. The record is 35.6 C (96.1 F) in 1998, marked on the chart; the median year is 33.3 C (91.9 F). 313233343536197019801990200020102020Record: 35.6 C (96.1 F) in 1998
The hottest day of the year at Pago Pago WSO AP, 1966 to 2026. The record is 35.6 C (96.1 F) in 1998, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Pago Pago WSO AP by year
YearHottest day (TXx)
196633.3 C (91.9 F)
196732.8 C (91.0 F)
196832.8 C (91.0 F)
196933.3 C (91.9 F)
197032.2 C (90.0 F)
197131.7 C (89.1 F)
197233.3 C (91.9 F)
197332.8 C (91.0 F)
197431.7 C (89.1 F)
197532.2 C (90.0 F)
197632.2 C (90.0 F)
197733.3 C (91.9 F)
197832.8 C (91.0 F)
197932.8 C (91.0 F)
198033.3 C (91.9 F)
198132.8 C (91.0 F)
198232.8 C (91.0 F)
198333.3 C (91.9 F)
198432.2 C (90.0 F)
198533.3 C (91.9 F)
198633.3 C (91.9 F)
198732.2 C (90.0 F)
198835.0 C (95.0 F)
198931.7 C (89.1 F)
199033.3 C (91.9 F)
199133.3 C (91.9 F)
199232.2 C (90.0 F)
199332.8 C (91.0 F)
199434.4 C (93.9 F)
199533.9 C (93.0 F)
199633.9 C (93.0 F)
199733.9 C (93.0 F)
199835.6 C (96.1 F)
199933.9 C (93.0 F)
200033.9 C (93.0 F)
200134.4 C (93.9 F)
200235.0 C (95.0 F)
200334.4 C (93.9 F)
200432.8 C (91.0 F)
200532.8 C (91.0 F)
200633.3 C (91.9 F)
200733.3 C (91.9 F)
200833.9 C (93.0 F)
200933.9 C (93.0 F)
201033.9 C (93.0 F)
201132.2 C (90.0 F)
201232.2 C (90.0 F)
201332.8 C (91.0 F)
201433.1 C (91.6 F)
201533.0 C (91.4 F)
201634.8 C (94.6 F)
201733.2 C (91.8 F)
201832.9 C (91.2 F)
201932.9 C (91.2 F)
202033.2 C (91.8 F)
202132.6 C (90.7 F)
202234.5 C (94.1 F)
202333.9 C (93.0 F)
202435.4 C (95.7 F)
202533.3 C (91.9 F)
202632.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at Pago Pago WSO AP by year The coldest night of the year at Pago Pago WSO AP, 1966 to 2026. The record is 17.2 C (63.0 F) in 1970, marked on the chart; the median year is 21.0 C (69.8 F). 1618202224197019801990200020102020Record: 17.2 C (63.0 F) in 1970
The coldest night of the year at Pago Pago WSO AP, 1966 to 2026. The record is 17.2 C (63.0 F) in 1970, marked on the chart; the median year is 21.0 C (69.8 F).
Coldest night (TNn) at Pago Pago WSO AP by year
YearColdest night (TNn)
196619.4 C (66.9 F)
196718.3 C (64.9 F)
196818.3 C (64.9 F)
196917.8 C (64.0 F)
197017.2 C (63.0 F)
197117.8 C (64.0 F)
197218.9 C (66.0 F)
197319.4 C (66.9 F)
197418.3 C (64.9 F)
197519.4 C (66.9 F)
197619.4 C (66.9 F)
197717.8 C (64.0 F)
197817.8 C (64.0 F)
197917.8 C (64.0 F)
198020.6 C (69.1 F)
198120.6 C (69.1 F)
198219.4 C (66.9 F)
198319.4 C (66.9 F)
198420.6 C (69.1 F)
198520.6 C (69.1 F)
198620.6 C (69.1 F)
198718.3 C (64.9 F)
198821.7 C (71.1 F)
198919.4 C (66.9 F)
199020.0 C (68.0 F)
199121.1 C (70.0 F)
199221.1 C (70.0 F)
199321.1 C (70.0 F)
199421.1 C (70.0 F)
199522.8 C (73.0 F)
199621.1 C (70.0 F)
199721.7 C (71.1 F)
199821.1 C (70.0 F)
199921.7 C (71.1 F)
200021.1 C (70.0 F)
200121.7 C (71.1 F)
200222.2 C (72.0 F)
200320.0 C (68.0 F)
200421.1 C (70.0 F)
200522.8 C (73.0 F)
200622.8 C (73.0 F)
200723.9 C (75.0 F)
200821.7 C (71.1 F)
200920.6 C (69.1 F)
201020.0 C (68.0 F)
201121.1 C (70.0 F)
201221.1 C (70.0 F)
201322.4 C (72.3 F)
201419.1 C (66.4 F)
201521.5 C (70.7 F)
201621.2 C (70.2 F)
201722.2 C (72.0 F)
201821.6 C (70.9 F)
201923.0 C (73.4 F)
202021.4 C (70.5 F)
202121.3 C (70.3 F)
202219.2 C (66.6 F)
202321.0 C (69.8 F)
202421.1 C (70.0 F)
202519.4 C (66.9 F)
202621.7 C (71.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Pago Pago WSO AP by year The wettest day of the year at Pago Pago WSO AP, 1966 to 2026. The record is 271.3 mm (10.7 in) in 2003, marked on the chart; the median year is 144.5 mm (5.7 in). 50100150200250300197019801990200020102020Record: 271.3 mm (10.7 in) in 2003
The wettest day of the year at Pago Pago WSO AP, 1966 to 2026. The record is 271.3 mm (10.7 in) in 2003, marked on the chart; the median year is 144.5 mm (5.7 in).
Wettest day (Rx1day) at Pago Pago WSO AP by year
YearWettest day (Rx1day)
1966116.8 mm (4.6 in)
1967190.5 mm (7.5 in)
1968151.1 mm (5.9 in)
1969133.9 mm (5.3 in)
1970134.4 mm (5.3 in)
1971108.7 mm (4.3 in)
1972194.8 mm (7.7 in)
1973152.4 mm (6.0 in)
197485.3 mm (3.4 in)
1975258.6 mm (10.2 in)
1976131.6 mm (5.2 in)
1977131.6 mm (5.2 in)
1978147.8 mm (5.8 in)
197997.3 mm (3.8 in)
1980161.5 mm (6.4 in)
1981133.4 mm (5.3 in)
1982176.3 mm (6.9 in)
1983161.0 mm (6.3 in)
198492.5 mm (3.6 in)
1985150.1 mm (5.9 in)
1986175.0 mm (6.9 in)
1987125.7 mm (4.9 in)
1988115.8 mm (4.6 in)
1989143.8 mm (5.7 in)
1990209.6 mm (8.3 in)
1991202.9 mm (8.0 in)
1992178.3 mm (7.0 in)
1993149.4 mm (5.9 in)
1994137.4 mm (5.4 in)
1995122.7 mm (4.8 in)
1996146.1 mm (5.8 in)
1997262.6 mm (10.3 in)
199892.7 mm (3.6 in)
1999218.4 mm (8.6 in)
2000177.5 mm (7.0 in)
200194.0 mm (3.7 in)
200298.0 mm (3.9 in)
2003271.3 mm (10.7 in)
200491.4 mm (3.6 in)
2005132.3 mm (5.2 in)
2006144.0 mm (5.7 in)
2007141.2 mm (5.6 in)
2008131.8 mm (5.2 in)
2009167.6 mm (6.6 in)
2010175.5 mm (6.9 in)
2011148.6 mm (5.9 in)
2012210.8 mm (8.3 in)
2013178.2 mm (7.0 in)
2014154.9 mm (6.1 in)
2015144.5 mm (5.7 in)
2016129.8 mm (5.1 in)
2017204.0 mm (8.0 in)
2018183.6 mm (7.2 in)
2019133.9 mm (5.3 in)
2020170.2 mm (6.7 in)
2021101.6 mm (4.0 in)
2022104.6 mm (4.1 in)
2023129.3 mm (5.1 in)
2024130.6 mm (5.1 in)
2025183.4 mm (7.2 in)
2026132.6 mm (5.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Pago Pago WSO AP by year The wettest five days of the year at Pago Pago WSO AP, 1966 to 2026. The record is 639.8 mm (25.2 in) in 1997, marked on the chart; the median year is 307.7 mm (12.1 in). 0200400600800197019801990200020102020Record: 639.8 mm (25.2 in) in 1997
The wettest five days of the year at Pago Pago WSO AP, 1966 to 2026. The record is 639.8 mm (25.2 in) in 1997, marked on the chart; the median year is 307.7 mm (12.1 in).
Wettest five days (Rx5day) at Pago Pago WSO AP by year
YearWettest five days (Rx5day)
1966223.4 mm (8.8 in)
1967307.7 mm (12.1 in)
1968445.5 mm (17.5 in)
1969243.2 mm (9.6 in)
1970379.6 mm (14.9 in)
1971164.2 mm (6.5 in)
1972368.4 mm (14.5 in)
1973327.9 mm (12.9 in)
1974148.3 mm (5.8 in)
1975507.0 mm (20.0 in)
1976246.9 mm (9.7 in)
1977329.2 mm (13.0 in)
1978312.5 mm (12.3 in)
1979166.8 mm (6.6 in)
1980240.0 mm (9.4 in)
1981260.1 mm (10.2 in)
1982519.2 mm (20.4 in)
1983189.9 mm (7.5 in)
1984317.8 mm (12.5 in)
1985251.4 mm (9.9 in)
1986370.6 mm (14.6 in)
1987213.9 mm (8.4 in)
1988228.5 mm (9.0 in)
1989292.6 mm (11.5 in)
1990435.4 mm (17.1 in)
1991445.6 mm (17.5 in)
1992286.2 mm (11.3 in)
1993235.5 mm (9.3 in)
1994213.6 mm (8.4 in)
1995267.5 mm (10.5 in)
1996344.4 mm (13.6 in)
1997639.8 mm (25.2 in)
1998180.5 mm (7.1 in)
1999511.0 mm (20.1 in)
2000278.0 mm (10.9 in)
2001206.0 mm (8.1 in)
2002197.6 mm (7.8 in)
2003400.8 mm (15.8 in)
2004171.9 mm (6.8 in)
2005188.7 mm (7.4 in)
2006400.6 mm (15.8 in)
2007328.1 mm (12.9 in)
2008314.7 mm (12.4 in)
2009357.1 mm (14.1 in)
2010411.4 mm (16.2 in)
2011314.2 mm (12.4 in)
2012270.5 mm (10.6 in)
2013242.8 mm (9.6 in)
2014401.8 mm (15.8 in)
2015416.0 mm (16.4 in)
2016281.2 mm (11.1 in)
2017340.2 mm (13.4 in)
2018589.5 mm (23.2 in)
2019388.0 mm (15.3 in)
2020380.5 mm (15.0 in)
2021248.7 mm (9.8 in)
2022217.2 mm (8.6 in)
2023346.7 mm (13.6 in)
2024294.4 mm (11.6 in)
2025439.7 mm (17.3 in)
2026292.1 mm (11.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Pago Pago WSO AP by year The longest dry spell of the year at Pago Pago WSO AP, 1966 to 2026. The record is 31 days in 1987, marked on the chart; the median year is 9 days. 010203040197019801990200020102020Record: 31 days in 1987
The longest dry spell of the year at Pago Pago WSO AP, 1966 to 2026. The record is 31 days in 1987, marked on the chart; the median year is 9 days.
Longest dry spell (CDD) at Pago Pago WSO AP by year
YearLongest dry spell (CDD)
196612 days
19676 days
196814 days
196919 days
197012 days
197111 days
197211 days
19738 days
197415 days
19758 days
197621 days
197719 days
19786 days
197910 days
198010 days
19818 days
198211 days
19839 days
198411 days
19858 days
19868 days
198731 days
19886 days
198915 days
199010 days
19918 days
199215 days
19938 days
199410 days
199510 days
19969 days
199724 days
199828 days
19996 days
20007 days
20019 days
200211 days
200315 days
200411 days
20059 days
200613 days
20078 days
200813 days
200912 days
20107 days
20119 days
20129 days
20139 days
201413 days
201512 days
20168 days
20176 days
20186 days
20198 days
20205 days
20218 days
20229 days
202315 days
20249 days
20255 days
20269 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.

Rainfall Return Levels

59 years, 1967 to 2025

A day with at least 146.7 mm (5.8 in) of rain is expected about once in 2 years. A day with at least 279.3 mm (11.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Pago Pago WSO AP: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years146.7 mm (5.8 in)
5 years184.7 mm (7.3 in)
10 years208.8 mm (8.2 in)
25 years238.2 mm (9.4 in)
50 years259.2 mm (10.2 in)
100 years279.3 mm (11.0 in)Longer than the 59 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 59 years of values from 1967 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 271.3 mm (10.7 in) in 2003; 262.6 mm (10.3 in) in 1997; 258.6 mm (10.2 in) in 1975.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Pago Pago WSO AP had a mean temperature of 27.7 C (81.9 F) and 3,488.7 mm (137.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Chuuk WSO AP (Federated States of Micronesia, 4,788 km away), Madang W.O. (Papua New Guinea, 4,863 km away) and Majuro Wbas AP (Marshall Islands, 3,100 km away).

Climate twins of Pago Pago WSO AP: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Chuuk WSO APFederated States of Micronesia4,788 km (2,975 mi)27.6 C (81.6 F)3,523.0 mm (138.7 in)0.45
Madang W.O.Papua New Guinea4,863 km (3,022 mi)27.1 C (80.8 F)3,376.8 mm (132.9 in)0.82
Majuro Wbas APMarshall Islands3,100 km (1,926 mi)27.3 C (81.1 F)3,337.1 mm (131.4 in)0.91

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Pago Pago WSO AP standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Pago Pago WSO AP 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). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).