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Napoopoo 28 Weather Records (USC00516697)

Record envelope, standing records and threshold days for Napoopoo 28 (USC00516697), Hawaii, United States, with 114 years of record.

Key Facts for Napoopoo 28

  • Napoopoo 28 (USC00516697) is a weather station in Hawaii, United States at 19.47 latitude and -155.91 longitude, 122 m (400 ft) above sea level.
  • The station reports from 1905 to 2018, 114 years of record.
  • 1,464 records set at Napoopoo 28 still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Napoopoo 28 set a daily record precipitation of 30.0 mm (1.2 in) on 19 June 2017.

About the Station

  • Location: Hawaii, United States, 19.47 latitude, -155.91 longitude.
  • Elevation: 122 m (400 ft).
  • Period of record: 1905 to 2018, 114 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Napoopoo 28, with 2026 drawn through them The band shows the record high and record low for each calendar day at Napoopoo 28. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 5101520253035 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Napoopoo 28. 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 Napoopoo 28, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.7 C (89.1 F)9.4 C (48.9 F)n/an/a
Feb31.7 C (89.1 F)11.1 C (52.0 F)n/an/a
Mar31.7 C (89.1 F)10.6 C (51.1 F)n/an/a
Apr32.2 C (90.0 F)12.2 C (54.0 F)n/an/a
May32.8 C (91.0 F)12.8 C (55.0 F)n/an/a
Jun31.7 C (89.1 F)12.2 C (54.0 F)n/an/a
Jul34.4 C (93.9 F)13.9 C (57.0 F)n/an/a
Aug33.9 C (93.0 F)13.3 C (55.9 F)n/an/a
Sep33.3 C (91.9 F)14.4 C (57.9 F)n/an/a
Oct33.9 C (93.0 F)11.7 C (53.1 F)n/an/a
Nov32.8 C (91.0 F)12.8 C (55.0 F)n/an/a
Dec33.3 C (91.9 F)10.6 C (51.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Napoopoo 28 by the year they were set 1,464 records at Napoopoo 28 still stand. 1947 holds the most, with 245. 01002003001918: 101919: 1451920: 481921: 241922: 401923: 861924: 111925: 41926: 41927: 1321928: 741929: 201930: 181931: 81932: 281933: 151934: 81935: 131936: 221937: 431938: 1731939: 211940: 161941: 201942: 421943: 31944: 101945: 51946: 621947: 2451948: 91949: 181950: 91951: 61952: 121953: 51954: 71955: 111956: 11957: 91958: 161959: 41960: 11961: 6191819231928193319381943194819531958
1,464 records at Napoopoo 28 still stand. 1947 holds the most, with 245.
Standing records at Napoopoo 28 by the year they were set
Year setStanding records
191810
1919145
192048
192124
192240
192386
192411
19254
19264
1927132
192874
192920
193018
19318
193228
193315
19348
193513
193622
193743
1938173
193921
194016
194120
194242
19433
194410
19455
194662
1947245
19489
194918
19509
19516
195212
19535
19547
195511
19561
19579
195816
19594
19601
19616

All-Time Record Progression

1 new records
When Napoopoo 28 set new all-time records 1 all-time records were set at Napoopoo 28 between 7 March 1951 and 7 March 1951. Each dot is a new record. Record low maximum temperature7 March 1951: Record low maximum temperature 20.6 C (69.1 F)
1 all-time records were set at Napoopoo 28 between 7 March 1951 and 7 March 1951. Each dot is a new record.
When Napoopoo 28 set new all-time records
DateKindDetail
1951-03-07Record low maximum temperatureRecord low maximum temperature 20.6 C (69.1 F)

Wettest Day of Each Month

Dec: 152.4 mm (6.0 in)
Record daily precipitation for each month at Napoopoo 28 The wettest day on record for each calendar month at Napoopoo 28. The most was 152.4 mm (6.0 in) on 26 December 1909. 050100150200 Jan: 109.2 mm (4.3 in), 31 January 1937 Jan Feb: 101.6 mm (4.0 in), 20 February 1918 Feb Mar: 127.0 mm (5.0 in), 18 March 1911 Mar Apr: 86.9 mm (3.4 in), 21 April 2004 Apr May: 71.6 mm (2.8 in), 7 May 1984 May Jun: 109.2 mm (4.3 in), 26 June 1997 Jun Jul: 108.5 mm (4.3 in), 27 July 1992 Jul Aug: 106.7 mm (4.2 in), 16 August 1914 Aug Sep: 86.4 mm (3.4 in), 8 September 1933 Sep Oct: 75.9 mm (3.0 in), 29 October 1984 Oct Nov: 144.8 mm (5.7 in), 29 November 2007 Nov Dec: 152.4 mm (6.0 in), 26 December 1909 Dec
The wettest day on record for each calendar month at Napoopoo 28. The most was 152.4 mm (6.0 in) on 26 December 1909.
Record daily precipitation for each month at Napoopoo 28
MonthRecord daily precipitation (mm)Date
Jan109.2 mm (4.3 in)31 January 1937
Feb101.6 mm (4.0 in)20 February 1918
Mar127.0 mm (5.0 in)18 March 1911
Apr86.9 mm (3.4 in)21 April 2004
May71.6 mm (2.8 in)7 May 1984
Jun109.2 mm (4.3 in)26 June 1997
Jul108.5 mm (4.3 in)27 July 1992
Aug106.7 mm (4.2 in)16 August 1914
Sep86.4 mm (3.4 in)8 September 1933
Oct75.9 mm (3.0 in)29 October 1984
Nov144.8 mm (5.7 in)29 November 2007
Dec152.4 mm (6.0 in)26 December 1909

Period of Record Coverage

1918 to 1961
Days with data per year at Napoopoo 28 44 years of record at Napoopoo 28, 1918 to 1961. 13 years have data for under 90 percent of days and are left out of rankings: 1918, 1920, 1923, 1928, 1937, 1939, 1942, 1945 and others. 1918: 52 of 365 days1919: 361 of 365 days1920: 239 of 366 days1921: 365 of 365 days1922: 350 of 365 days1923: 276 of 365 days1924: 365 of 366 days1925: 365 of 365 days1926: 364 of 365 days1927: 357 of 365 days1928: 319 of 366 days1929: 365 of 365 days1930: 365 of 365 days1931: 365 of 365 days1932: 365 of 366 days1933: 364 of 365 days1934: 364 of 365 days1935: 364 of 365 days1936: 366 of 366 days1937: 233 of 365 days1938: 334 of 365 days1939: 214 of 365 days1940: 360 of 366 days1941: 357 of 365 days1942: 298 of 365 days1943: 351 of 365 days1944: 354 of 366 days1945: 313 of 365 days1946: 349 of 365 days1947: 354 of 365 days1948: 332 of 366 days1949: 363 of 365 days1950: 364 of 365 days1951: 364 of 365 days1952: 354 of 366 days1953: 365 of 365 days1954: 364 of 365 days1955: 343 of 365 days1956: 331 of 366 days1957: 304 of 365 days1958: 327 of 365 days1959: 312 of 365 days1960: 300 of 366 days1961: 135 of 365 days19201930194019501960
44 years of record at Napoopoo 28, 1918 to 1961. 13 years have data for under 90 percent of days and are left out of rankings: 1918, 1920, 1923, 1928, 1937, 1939, 1942, 1945 and others.
Days with data per year at Napoopoo 28
YearDays with dataShare of yearComplete
19185214%No
191936199%Yes
192023965%No
1921365100%Yes
192235096%Yes
192327676%No
1924365100%Yes
1925365100%Yes
1926364100%Yes
192735798%Yes
192831987%No
1929365100%Yes
1930365100%Yes
1931365100%Yes
1932365100%Yes
1933364100%Yes
1934364100%Yes
1935364100%Yes
1936366100%Yes
193723364%No
193833492%Yes
193921459%No
194036098%Yes
194135798%Yes
194229882%No
194335196%Yes
194435497%Yes
194531386%No
194634996%Yes
194735497%Yes
194833291%Yes
194936399%Yes
1950364100%Yes
1951364100%Yes
195235497%Yes
1953365100%Yes
1954364100%Yes
195534394%Yes
195633190%Yes
195730483%No
195832790%No
195931285%No
196030082%No
196113537%No

Latest Records

20
Latest records at Napoopoo 28
DateStationRecordValueBeat old record byOld record stoodSignificance
19 June 2017Napoopoo 28, USdaily rain30.0 mm (1.2 in)0.8 mm (0.03 in)102 years40 of 100 (Notable)
17 April 2017Napoopoo 28, USdaily rain38.6 mm (1.5 in)18.3 mm (0.7 in)90 years56 of 100 (Notable)
11 April 2017Napoopoo 28, USdaily rain31.8 mm (1.3 in)14.8 mm (0.6 in)92 years52 of 100 (Notable)
19 December 2016Napoopoo 28, USdaily rain63.8 mm (2.5 in)38.4 mm (1.5 in)102 years61 of 100 (Major)
19 April 2016Napoopoo 28, USdaily rain69.9 mm (2.8 in)25.4 mm (1.0 in)89 years63 of 100 (Major)
16 November 2015Napoopoo 28, USdaily rain55.9 mm (2.2 in)11.4 mm (0.4 in)100 years49 of 100 (Notable)
24 August 2015Napoopoo 28, USdaily rain44.7 mm (1.8 in)13.2 mm (0.5 in)10 years27 of 100 (Routine)
20 August 2015Napoopoo 28, USdaily rain46.5 mm (1.8 in)27.2 mm (1.1 in)56 years56 of 100 (Notable)
18 August 2015Napoopoo 28, USdaily rain35.6 mm (1.4 in)6.1 mm (0.24 in)54 years32 of 100 (Routine)
17 August 2015Napoopoo 28, USdaily rain31.8 mm (1.3 in)6.4 mm (0.25 in)17 years21 of 100 (Routine)
16 April 2015Napoopoo 28, USdaily rain40.9 mm (1.6 in)27.7 mm (1.1 in)74 years62 of 100 (Major)
10 February 2015Napoopoo 28, USdaily rain27.9 mm (1.1 in)10.1 mm (0.4 in)56 years33 of 100 (Routine)
5 February 2014Napoopoo 28, USdaily rain10.9 mm (0.4 in)3.3 mm (0.13 in)96 years20 of 100 (Routine)
26 September 2013Napoopoo 28, USdaily rain49.8 mm (2.0 in)29.7 mm (1.2 in)104 years70 of 100 (Major)
30 January 2013Napoopoo 28, USdaily rain23.1 mm (0.9 in)6.6 mm (0.26 in)11 years17 of 100 (Routine)
15 November 2012Napoopoo 28, USdaily rain49.8 mm (2.0 in)16.8 mm (0.7 in)73 years44 of 100 (Notable)
19 May 2011Napoopoo 28, USdaily rain24.4 mm (1.0 in)3.8 mm (0.15 in)6 years16 of 100 (Routine)
4 May 2011Napoopoo 28, USdaily rain42.7 mm (1.7 in)17.0 mm (0.7 in)85 years55 of 100 (Notable)
7 April 2011Napoopoo 28, USdaily rain35.3 mm (1.4 in)20.8 mm (0.8 in)65 years51 of 100 (Notable)
9 February 2011Napoopoo 28, USdaily rain17.3 mm (0.7 in)6.4 mm (0.25 in)61 years20 of 100 (Routine)

Climate Trend

24 complete years, 1919 to 1958
Annual mean temperature at Napoopoo 28 as warming stripes, 1919 to 1958 One stripe for each of 24 complete years at Napoopoo 28, 1919 to 1958. Blue stripes are years cooler than the station's own mean of 23.1 C (73.5 F); red stripes are warmer. The coolest year was 1947, at 21.3 C (70.3 F), and the warmest was 1930, at 24.1 C (75.3 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1919: 23.7 C, +0.6 C from the station mean1921: 24.0 C, +0.9 C from the station mean1924: 23.6 C, +0.6 C from the station mean1925: 23.6 C, +0.5 C from the station mean1926: 23.8 C, +0.7 C from the station mean1929: 23.9 C, +0.9 C from the station mean1930: 24.1 C, +1.0 C from the station mean1931: 23.6 C, +0.6 C from the station mean1933: 23.1 C, 0.0 C from the station mean1934: 23.9 C, +0.9 C from the station mean1935: 23.9 C, +0.9 C from the station mean1936: 23.7 C, +0.6 C from the station mean1940: 23.3 C, +0.3 C from the station mean1941: 22.4 C, -0.7 C from the station mean1943: 23.0 C, -0.1 C from the station mean1944: 22.8 C, -0.3 C from the station mean1946: 21.8 C, -1.2 C from the station mean1947: 21.3 C, -1.8 C from the station mean1949: 22.0 C, -1.0 C from the station mean1950: 22.7 C, -0.4 C from the station mean1951: 22.4 C, -0.6 C from the station mean1953: 22.2 C, -0.9 C from the station mean1956: 22.6 C, -0.5 C from the station mean1958: 21.9 C, -1.1 C from the station mean19191925193019351940194519501955
One stripe for each of 24 complete years at Napoopoo 28, 1919 to 1958. Blue stripes are years cooler than the station's own mean of 23.1 C (73.5 F); red stripes are warmer. The coolest year was 1947, at 21.3 C (70.3 F), and the warmest was 1930, at 24.1 C (75.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Napoopoo 28 as warming stripes, 1919 to 1958
YearAnnual mean temperatureDifference from the station mean
191923.7 C+0.64 C
192124.0 C+0.93 C
192423.6 C+0.56 C
192523.6 C+0.53 C
192623.8 C+0.69 C
192923.9 C+0.85 C
193024.1 C+1.01 C
193123.6 C+0.58 C
193323.1 C+0.00 C
193423.9 C+0.88 C
193523.9 C+0.87 C
193623.7 C+0.64 C
194023.3 C+0.25 C
194122.4 C-0.66 C
194323.0 C-0.08 C
194422.8 C-0.27 C
194621.8 C-1.25 C
194721.3 C-1.78 C
194922.0 C-1.05 C
195022.7 C-0.38 C
195122.4 C-0.63 C
195322.2 C-0.86 C
195622.6 C-0.46 C
195821.9 C-1.12 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1905 to 2018
Yearly extremes at Napoopoo 28: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.4 C (93.9 F)193831.7 C (89.1 F)44
Coldest night (TNn)9.4 C (48.9 F)194713.9 C (57.0 F)44
Wettest day (Rx1day)152.4 mm (6.0 in)190954.1 mm (2.1 in)114
Wettest five days (Rx5day)216.4 mm (8.5 in)192765.8 mm (2.6 in)112
Longest dry spell (CDD)137 days191019 days114

Hottest day (TXx)

Hottest day (TXx) at Napoopoo 28 by year The hottest day of the year at Napoopoo 28, 1905 to 2018. The record is 34.4 C (93.9 F) in 1938, marked on the chart; the median year is 31.7 C (89.1 F). 3032343619201940196019802000Record: 34.4 C (93.9 F) in 1938
The hottest day of the year at Napoopoo 28, 1905 to 2018. The record is 34.4 C (93.9 F) in 1938, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Napoopoo 28 by year
YearHottest day (TXx)
1905n/a
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
191832.2 C (90.0 F)
191933.3 C (91.9 F)
192031.7 C (89.1 F)
192131.7 C (89.1 F)
192231.1 C (88.0 F)
192332.8 C (91.0 F)
192430.6 C (87.1 F)
192531.1 C (88.0 F)
192631.7 C (89.1 F)
192730.0 C (86.0 F)
192831.1 C (88.0 F)
192930.6 C (87.1 F)
193032.2 C (90.0 F)
193131.1 C (88.0 F)
193230.6 C (87.1 F)
193331.7 C (89.1 F)
193431.7 C (89.1 F)
193531.1 C (88.0 F)
193631.7 C (89.1 F)
193733.3 C (91.9 F)
193834.4 C (93.9 F)
193931.7 C (89.1 F)
194032.2 C (90.0 F)
194133.3 C (91.9 F)
194231.7 C (89.1 F)
194331.7 C (89.1 F)
194431.7 C (89.1 F)
194531.7 C (89.1 F)
194633.3 C (91.9 F)
194731.7 C (89.1 F)
194831.7 C (89.1 F)
194930.6 C (87.1 F)
195032.2 C (90.0 F)
195130.6 C (87.1 F)
195230.6 C (87.1 F)
195330.6 C (87.1 F)
195431.1 C (88.0 F)
195531.7 C (89.1 F)
195631.1 C (88.0 F)
195731.1 C (88.0 F)
195831.7 C (89.1 F)
195931.1 C (88.0 F)
196031.1 C (88.0 F)
196131.1 C (88.0 F)
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a

Coldest night (TNn)

Coldest night (TNn) at Napoopoo 28 by year The coldest night of the year at Napoopoo 28, 1905 to 2018. The record is 9.4 C (48.9 F) in 1947, marked on the chart; the median year is 13.9 C (57.0 F). 7.51012.51517.52019201940196019802000Record: 9.4 C (48.9 F) in 1947
The coldest night of the year at Napoopoo 28, 1905 to 2018. The record is 9.4 C (48.9 F) in 1947, marked on the chart; the median year is 13.9 C (57.0 F).
Coldest night (TNn) at Napoopoo 28 by year
YearColdest night (TNn)
1905n/a
1906n/a
1907n/a
1908n/a
1909n/a
1910n/a
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
191815.6 C (60.1 F)
191915.6 C (60.1 F)
192016.1 C (61.0 F)
192114.4 C (57.9 F)
192214.4 C (57.9 F)
192317.8 C (64.0 F)
192415.6 C (60.1 F)
192516.1 C (61.0 F)
192612.8 C (55.0 F)
192716.1 C (61.0 F)
192815.6 C (60.1 F)
192915.6 C (60.1 F)
193013.9 C (57.0 F)
193116.7 C (62.1 F)
193213.9 C (57.0 F)
193313.3 C (55.9 F)
193416.7 C (62.1 F)
193516.1 C (61.0 F)
193615.0 C (59.0 F)
193714.4 C (57.9 F)
193815.0 C (59.0 F)
193915.6 C (60.1 F)
194013.3 C (55.9 F)
194111.1 C (52.0 F)
194211.1 C (52.0 F)
194313.3 C (55.9 F)
194413.3 C (55.9 F)
194512.2 C (54.0 F)
194611.1 C (52.0 F)
19479.4 C (48.9 F)
194812.8 C (55.0 F)
194911.7 C (53.1 F)
195014.4 C (57.9 F)
195110.6 C (51.1 F)
195213.9 C (57.0 F)
195313.9 C (57.0 F)
195411.7 C (53.1 F)
195513.3 C (55.9 F)
195613.9 C (57.0 F)
195712.2 C (54.0 F)
195812.2 C (54.0 F)
195911.7 C (53.1 F)
196013.3 C (55.9 F)
196115.6 C (60.1 F)
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014n/a
2015n/a
2016n/a
2017n/a
2018n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Napoopoo 28 by year The wettest day of the year at Napoopoo 28, 1905 to 2018. The record is 152.4 mm (6.0 in) in 1909, marked on the chart; the median year is 54.1 mm (2.1 in). 05010015020019201940196019802000Record: 152.4 mm (6.0 in) in 1909
The wettest day of the year at Napoopoo 28, 1905 to 2018. The record is 152.4 mm (6.0 in) in 1909, marked on the chart; the median year is 54.1 mm (2.1 in).
Wettest day (Rx1day) at Napoopoo 28 by year
YearWettest day (Rx1day)
190553.3 mm (2.1 in)
190661.0 mm (2.4 in)
190766.0 mm (2.6 in)
190850.8 mm (2.0 in)
1909152.4 mm (6.0 in)
191054.6 mm (2.1 in)
1911127.0 mm (5.0 in)
191244.5 mm (1.8 in)
191363.5 mm (2.5 in)
1914127.0 mm (5.0 in)
191568.6 mm (2.7 in)
191638.1 mm (1.5 in)
191772.4 mm (2.9 in)
1918101.6 mm (4.0 in)
191953.6 mm (2.1 in)
1920108.0 mm (4.3 in)
192182.0 mm (3.2 in)
192250.8 mm (2.0 in)
192346.0 mm (1.8 in)
192464.0 mm (2.5 in)
192528.7 mm (1.1 in)
192654.6 mm (2.1 in)
192771.1 mm (2.8 in)
192831.8 mm (1.3 in)
192968.6 mm (2.7 in)
1930102.9 mm (4.1 in)
193149.5 mm (1.9 in)
193231.8 mm (1.3 in)
193386.4 mm (3.4 in)
193476.2 mm (3.0 in)
193566.0 mm (2.6 in)
193696.5 mm (3.8 in)
1937109.2 mm (4.3 in)
193829.7 mm (1.2 in)
193959.7 mm (2.4 in)
1940109.2 mm (4.3 in)
194183.8 mm (3.3 in)
194250.3 mm (2.0 in)
194355.9 mm (2.2 in)
194480.0 mm (3.1 in)
194557.4 mm (2.3 in)
194647.2 mm (1.9 in)
194743.7 mm (1.7 in)
194871.1 mm (2.8 in)
194958.7 mm (2.3 in)
195078.5 mm (3.1 in)
1951107.4 mm (4.2 in)
195270.6 mm (2.8 in)
195362.2 mm (2.4 in)
195431.0 mm (1.2 in)
195563.5 mm (2.5 in)
195692.7 mm (3.6 in)
195740.9 mm (1.6 in)
195834.8 mm (1.4 in)
195997.3 mm (3.8 in)
196062.2 mm (2.4 in)
196151.1 mm (2.0 in)
196226.7 mm (1.1 in)
19630.0 mm (0.00 in)
19642.3 mm (0.09 in)
196543.7 mm (1.7 in)
19660.0 mm (0.00 in)
19670.0 mm (0.00 in)
19680.0 mm (0.00 in)
19690.0 mm (0.00 in)
19700.0 mm (0.00 in)
19710.0 mm (0.00 in)
19720.0 mm (0.00 in)
19730.0 mm (0.00 in)
197440.6 mm (1.6 in)
19750.0 mm (0.00 in)
19760.5 mm (0.02 in)
19770.0 mm (0.00 in)
19781.0 mm (0.04 in)
19790.0 mm (0.00 in)
198025.1 mm (1.0 in)
198133.5 mm (1.3 in)
198274.7 mm (2.9 in)
198384.1 mm (3.3 in)
198475.9 mm (3.0 in)
198567.1 mm (2.6 in)
198670.9 mm (2.8 in)
198781.8 mm (3.2 in)
198878.7 mm (3.1 in)
198974.7 mm (2.9 in)
199057.2 mm (2.3 in)
19910.0 mm (0.00 in)
1992108.5 mm (4.3 in)
19930.0 mm (0.00 in)
19940.0 mm (0.00 in)
199536.6 mm (1.4 in)
1996111.0 mm (4.4 in)
1997109.2 mm (4.3 in)
199845.7 mm (1.8 in)
199968.6 mm (2.7 in)
200035.6 mm (1.4 in)
200168.6 mm (2.7 in)
200253.3 mm (2.1 in)
200329.2 mm (1.1 in)
200486.9 mm (3.4 in)
200548.8 mm (1.9 in)
200638.1 mm (1.5 in)
2007144.8 mm (5.7 in)
200852.1 mm (2.1 in)
200967.3 mm (2.6 in)
201049.8 mm (2.0 in)
201142.7 mm (1.7 in)
201249.8 mm (2.0 in)
201349.8 mm (2.0 in)
201438.1 mm (1.5 in)
201555.9 mm (2.2 in)
201669.9 mm (2.8 in)
201738.6 mm (1.5 in)
20186.1 mm (0.24 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Napoopoo 28 by year The wettest five days of the year at Napoopoo 28, 1905 to 2018. The record is 216.4 mm (8.5 in) in 1927, marked on the chart; the median year is 65.8 mm (2.6 in). 010020030019201940196019802000Record: 216.4 mm (8.5 in) in 1927
The wettest five days of the year at Napoopoo 28, 1905 to 2018. The record is 216.4 mm (8.5 in) in 1927, marked on the chart; the median year is 65.8 mm (2.6 in).
Wettest five days (Rx5day) at Napoopoo 28 by year
YearWettest five days (Rx5day)
1905100.4 mm (4.0 in)
190680.1 mm (3.2 in)
1907165.0 mm (6.5 in)
190864.8 mm (2.6 in)
1909188.0 mm (7.4 in)
191045.3 mm (1.8 in)
1911129.5 mm (5.1 in)
191248.3 mm (1.9 in)
191373.1 mm (2.9 in)
1914181.6 mm (7.1 in)
1915210.6 mm (8.3 in)
191664.8 mm (2.6 in)
1917114.4 mm (4.5 in)
1918142.3 mm (5.6 in)
191974.1 mm (2.9 in)
1920116.9 mm (4.6 in)
192197.6 mm (3.8 in)
192271.6 mm (2.8 in)
192365.3 mm (2.6 in)
192467.3 mm (2.6 in)
192557.4 mm (2.3 in)
192685.1 mm (3.4 in)
1927216.4 mm (8.5 in)
192863.7 mm (2.5 in)
192974.2 mm (2.9 in)
1930102.9 mm (4.1 in)
193143.7 mm (1.7 in)
193255.9 mm (2.2 in)
1933118.5 mm (4.7 in)
1934104.2 mm (4.1 in)
1935115.6 mm (4.6 in)
1936205.8 mm (8.1 in)
193741.9 mm (1.6 in)
193855.9 mm (2.2 in)
193979.2 mm (3.1 in)
1940147.3 mm (5.8 in)
1941118.6 mm (4.7 in)
1942102.4 mm (4.0 in)
194382.8 mm (3.3 in)
194491.2 mm (3.6 in)
194579.7 mm (3.1 in)
194682.0 mm (3.2 in)
194757.2 mm (2.3 in)
194873.1 mm (2.9 in)
194974.2 mm (2.9 in)
1950141.8 mm (5.6 in)
1951150.3 mm (5.9 in)
1952152.6 mm (6.0 in)
195394.1 mm (3.7 in)
195467.1 mm (2.6 in)
1955122.5 mm (4.8 in)
1956116.1 mm (4.6 in)
195755.2 mm (2.2 in)
195847.7 mm (1.9 in)
1959130.0 mm (5.1 in)
196075.1 mm (3.0 in)
196186.7 mm (3.4 in)
196226.7 mm (1.1 in)
19630.0 mm (0.00 in)
19642.3 mm (0.09 in)
196543.7 mm (1.7 in)
19660.0 mm (0.00 in)
19670.0 mm (0.00 in)
19680.0 mm (0.00 in)
19690.0 mm (0.00 in)
19700.0 mm (0.00 in)
19710.0 mm (0.00 in)
19720.0 mm (0.00 in)
19730.0 mm (0.00 in)
197440.6 mm (1.6 in)
19750.0 mm (0.00 in)
19760.5 mm (0.02 in)
19770.0 mm (0.00 in)
19781.0 mm (0.04 in)
19790.0 mm (0.00 in)
1980n/a
198133.5 mm (1.3 in)
19820.0 mm (0.00 in)
19832.3 mm (0.09 in)
19840.0 mm (0.00 in)
19855.6 mm (0.22 in)
198628.4 mm (1.1 in)
19870.8 mm (0.03 in)
198878.7 mm (3.1 in)
198940.9 mm (1.6 in)
19905.1 mm (0.20 in)
19910.0 mm (0.00 in)
1992108.5 mm (4.3 in)
19930.0 mm (0.00 in)
19940.0 mm (0.00 in)
199536.6 mm (1.4 in)
1996176.1 mm (6.9 in)
199790.9 mm (3.6 in)
199854.6 mm (2.1 in)
199980.3 mm (3.2 in)
200068.6 mm (2.7 in)
2001101.6 mm (4.0 in)
200268.6 mm (2.7 in)
200313.9 mm (0.5 in)
200455.6 mm (2.2 in)
200566.3 mm (2.6 in)
200642.7 mm (1.7 in)
2007150.1 mm (5.9 in)
200855.4 mm (2.2 in)
200957.1 mm (2.2 in)
201087.9 mm (3.5 in)
201138.8 mm (1.5 in)
201230.5 mm (1.2 in)
20130.3 mm (0.01 in)
201414.2 mm (0.6 in)
2015113.9 mm (4.5 in)
201667.1 mm (2.6 in)
201753.1 mm (2.1 in)
2018n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Napoopoo 28 by year The longest dry spell of the year at Napoopoo 28, 1905 to 2018. The record is 137 days in 1910, marked on the chart; the median year is 19 days. 05010015019201940196019802000Record: 137 days in 1910
The longest dry spell of the year at Napoopoo 28, 1905 to 2018. The record is 137 days in 1910, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Napoopoo 28 by year
YearLongest dry spell (CDD)
190574 days
190628 days
190724 days
190838 days
190932 days
1910137 days
191126 days
191256 days
191342 days
191441 days
191550 days
191626 days
191719 days
191830 days
191952 days
192029 days
192125 days
192226 days
192311 days
19246 days
19252 days
192614 days
19274 days
19289 days
19298 days
193011 days
19311 day
19325 days
19331 day
19342 days
19357 days
193613 days
193729 days
193843 days
193913 days
194026 days
194117 days
194225 days
194313 days
194418 days
194516 days
19468 days
194738 days
194819 days
194915 days
195024 days
195115 days
195216 days
195326 days
195430 days
195515 days
195612 days
195715 days
195822 days
195920 days
196029 days
196119 days
19627 days
196315 days
196420 days
196513 days
19667 days
19677 days
196821 days
19697 days
19707 days
19717 days
197222 days
197321 days
19747 days
19757 days
197614 days
197721 days
197828 days
197921 days
19801 day
19818 days
19828 days
198320 days
19849 days
198514 days
198627 days
198721 days
198815 days
198913 days
199014 days
199114 days
199213 days
199314 days
199419 days
199522 days
199627 days
199730 days
199840 days
199914 days
200061 days
200132 days
200223 days
200321 days
200421 days
200523 days
200621 days
200725 days
200818 days
200922 days
201029 days
201121 days
201218 days
20135 days
20144 days
201523 days
201627 days
201734 days
20181 day

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

34 years, 1906 to 1959

A day with at least 64.1 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 163.2 mm (6.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Napoopoo 28: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.1 mm (2.5 in)
5 years88.9 mm (3.5 in)
10 years105.9 mm (4.2 in)
25 years128.3 mm (5.1 in)
50 years145.5 mm (5.7 in)Longer than the 34 years of record
100 years163.2 mm (6.4 in)Longer than the 34 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, 34 years of values from 1906 to 1959.

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: 152.4 mm (6.0 in) in 1909; 127.0 mm (5.0 in) in 1914; 109.2 mm (4.3 in) in 1940.

Download the Data

  • Data for Napoopoo 28 standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Napoopoo 28 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 . Last revised (2025-12-31).