Daily records
Page built 2026-10-15
Data as of 2025-12-31
Search
Built 2026-10-15 (15 October 2026)

Maunawili Rch Weather Records (USC00516228)

Record envelope, standing records and threshold days for Maunawili Rch (USC00516228), Hawaii, United States, with 40 years of record.

Key Facts for Maunawili Rch

  • Maunawili Rch (USC00516228) is a weather station in Hawaii, United States at 21.37 latitude and -157.77 longitude, 76 m (249 ft) above sea level.
  • The station reports from 1905 to 1944, 40 years of record.
  • 1,464 records set at Maunawili Rch still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Maunawili Rch tied a daily record high minimum temperature of 20.6 C (69.1 F) on 15 April 1944.

About the Station

  • Location: Hawaii, United States, 21.37 latitude, -157.77 longitude.
  • Elevation: 76 m (249 ft).
  • Period of record: 1905 to 1944, 40 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Maunawili Rch, with 2026 drawn through them The band shows the record high and record low for each calendar day at Maunawili Rch. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 101520253035 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Maunawili Rch. 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 Maunawili Rch, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.6 C (87.1 F)10.0 C (50.0 F)n/an/a
Feb30.0 C (86.0 F)11.1 C (52.0 F)n/an/a
Mar31.1 C (88.0 F)10.0 C (50.0 F)n/an/a
Apr31.7 C (89.1 F)11.1 C (52.0 F)n/an/a
May31.7 C (89.1 F)13.3 C (55.9 F)n/an/a
Jun31.1 C (88.0 F)13.9 C (57.0 F)n/an/a
Jul31.1 C (88.0 F)17.8 C (64.0 F)n/an/a
Aug32.2 C (90.0 F)16.7 C (62.1 F)n/an/a
Sep33.3 C (91.9 F)16.1 C (61.0 F)n/an/a
Oct33.3 C (91.9 F)13.9 C (57.0 F)n/an/a
Nov30.6 C (87.1 F)12.8 C (55.0 F)n/an/a
Dec29.4 C (84.9 F)12.2 C (54.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Maunawili Rch by the year they were set 1,464 records at Maunawili Rch still stand. 1906 holds the most, with 119. 0501001501905: 491906: 1191907: 691908: 471909: 611910: 711911: 421912: 371913: 671914: 541915: 861916: 261917: 551918: 401919: 401920: 361921: 411922: 181923: 221924: 131925: 241926: 231927: 261928: 201929: 241930: 311931: 271932: 231933: 161934: 381935: 251936: 371937: 251938: 191939: 291940: 261941: 141942: 281943: 151944: 11905190919131917192119251929193319371941
1,464 records at Maunawili Rch still stand. 1906 holds the most, with 119.
Standing records at Maunawili Rch by the year they were set
Year setStanding records
190549
1906119
190769
190847
190961
191071
191142
191237
191367
191454
191586
191626
191755
191840
191940
192036
192141
192218
192322
192413
192524
192623
192726
192820
192924
193031
193127
193223
193316
193438
193525
193637
193725
193819
193929
194026
194114
194228
194315
19441

All-Time Record Progression

2 new records
When Maunawili Rch set new all-time records 2 all-time records were set at Maunawili Rch between 6 April 1939 and 10 March 1942. Each dot is a new record. Record low maximum temperature6 April 1939: Record low maximum temperature 18.9 C (66.0 F)10 March 1942: Record low maximum temperature 18.3 C (64.9 F)1940
2 all-time records were set at Maunawili Rch between 6 April 1939 and 10 March 1942. Each dot is a new record.
When Maunawili Rch set new all-time records
DateKindDetail
1939-04-06Record low maximum temperatureRecord low maximum temperature 18.9 C (66.0 F)
1942-03-10Record low maximum temperatureRecord low maximum temperature 18.3 C (64.9 F)

Wettest Day of Each Month

Apr: 278.6 mm (11.0 in)
Record daily precipitation for each month at Maunawili Rch The wettest day on record for each calendar month at Maunawili Rch. The most was 278.6 mm (11.0 in) on 6 April 1914. 0100200300 Jan: 201.9 mm (7.9 in), 19 January 1916 Jan Feb: 120.9 mm (4.8 in), 6 February 1942 Feb Mar: 222.3 mm (8.8 in), 16 March 1908 Mar Apr: 278.6 mm (11.0 in), 6 April 1914 Apr May: 190.8 mm (7.5 in), 1 May 1932 May Jun: 95.0 mm (3.7 in), 4 June 1913 Jun Jul: 64.0 mm (2.5 in), 18 July 1915 Jul Aug: 101.6 mm (4.0 in), 25 August 1910 Aug Sep: 120.7 mm (4.8 in), 2 September 1930 Sep Oct: 242.8 mm (9.6 in), 23 October 1939 Oct Nov: 173.2 mm (6.8 in), 19 November 1930 Nov Dec: 170.7 mm (6.7 in), 24 December 1923 Dec
The wettest day on record for each calendar month at Maunawili Rch. The most was 278.6 mm (11.0 in) on 6 April 1914.
Record daily precipitation for each month at Maunawili Rch
MonthRecord daily precipitation (mm)Date
Jan201.9 mm (7.9 in)19 January 1916
Feb120.9 mm (4.8 in)6 February 1942
Mar222.3 mm (8.8 in)16 March 1908
Apr278.6 mm (11.0 in)6 April 1914
May190.8 mm (7.5 in)1 May 1932
Jun95.0 mm (3.7 in)4 June 1913
Jul64.0 mm (2.5 in)18 July 1915
Aug101.6 mm (4.0 in)25 August 1910
Sep120.7 mm (4.8 in)2 September 1930
Oct242.8 mm (9.6 in)23 October 1939
Nov173.2 mm (6.8 in)19 November 1930
Dec170.7 mm (6.7 in)24 December 1923

Period of Record Coverage

1905 to 1944
Days with data per year at Maunawili Rch 40 years of record at Maunawili Rch, 1905 to 1944. 3 years have data for under 90 percent of days and are left out of rankings: 1905, 1924, 1944. 1905: 326 of 365 days1906: 359 of 365 days1907: 362 of 365 days1908: 366 of 366 days1909: 363 of 365 days1910: 362 of 365 days1911: 364 of 365 days1912: 336 of 366 days1913: 365 of 365 days1914: 365 of 365 days1915: 365 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 365 of 365 days1919: 365 of 365 days1920: 349 of 366 days1921: 362 of 365 days1922: 364 of 365 days1923: 334 of 365 days1924: 292 of 366 days1925: 365 of 365 days1926: 365 of 365 days1927: 362 of 365 days1928: 366 of 366 days1929: 364 of 365 days1930: 364 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 365 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 365 of 366 days1937: 360 of 365 days1938: 348 of 365 days1939: 364 of 365 days1940: 366 of 366 days1941: 363 of 365 days1942: 363 of 365 days1943: 364 of 365 days1944: 121 of 366 days19051910191519201925193019351940
40 years of record at Maunawili Rch, 1905 to 1944. 3 years have data for under 90 percent of days and are left out of rankings: 1905, 1924, 1944.
Days with data per year at Maunawili Rch
YearDays with dataShare of yearComplete
190532689%No
190635998%Yes
190736299%Yes
1908366100%Yes
190936399%Yes
191036299%Yes
1911364100%Yes
191233692%Yes
1913365100%Yes
1914365100%Yes
1915365100%Yes
1916366100%Yes
1917364100%Yes
1918365100%Yes
1919365100%Yes
192034995%Yes
192136299%Yes
1922364100%Yes
192333492%Yes
192429280%No
1925365100%Yes
1926365100%Yes
192736299%Yes
1928366100%Yes
1929364100%Yes
1930364100%Yes
1931365100%Yes
1932366100%Yes
1933365100%Yes
1934365100%Yes
1935365100%Yes
1936365100%Yes
193736099%Yes
193834895%Yes
1939364100%Yes
1940366100%Yes
194136399%Yes
194236399%Yes
1943364100%Yes
194412133%No

Latest Records

20
Latest records at Maunawili Rch
DateStationRecordValueBeat old record byOld record stoodSignificance
15 April 1944Maunawili Rch, USdaily high min (Tie)20.6 C (69.1 F)tie30 years3 of 100 (Routine)
30 March 1944Maunawili Rch, USdaily low min (Tie)14.4 C (57.9 F)tie26 years2 of 100 (Routine)
11 March 1944Maunawili Rch, USdaily rain66.0 mm (2.6 in)7.8 mm (0.31 in)2 years8 of 100 (Routine)
10 March 1944Maunawili Rch, USdaily rain102.9 mm (4.1 in)70.1 mm (2.8 in)26 years48 of 100 (Notable)
29 February 1944Maunawili Rch, USdaily high max (Tie)26.7 C (80.1 F)tie28 years3 of 100 (Routine)
23 February 1944Maunawili Rch, USdaily rain26.7 mm (1.1 in)6.4 mm (0.25 in)32 years17 of 100 (Routine)
23 January 1944Maunawili Rch, USdaily high max (Tie)27.8 C (82.0 F)tie30 years3 of 100 (Routine)
23 January 1944Maunawili Rch, USdaily high min (Tie)20.0 C (68.0 F)tie22 years2 of 100 (Routine)
22 January 1944Maunawili Rch, USdaily high max27.8 C (82.0 F)0.6 C (1.1 F)32 years16 of 100 (Routine)
28 December 1943Maunawili Rch, USdaily low min (Tie)14.4 C (57.9 F)tie29 years2 of 100 (Routine)
24 November 1943Maunawili Rch, USdaily low min14.4 C (57.9 F)0.6 C (1.1 F)4 years7 of 100 (Routine)
1 October 1943Maunawili Rch, USdaily high min (Tie)22.2 C (72.0 F)tie20 years2 of 100 (Routine)
29 August 1943Maunawili Rch, USdaily rain32.5 mm (1.3 in)26.9 mm (1.1 in)29 years41 of 100 (Notable)
23 August 1943Maunawili Rch, USdaily rain39.6 mm (1.6 in)9.1 mm (0.36 in)13 years17 of 100 (Routine)
30 July 1943Maunawili Rch, USdaily high min23.3 C (73.9 F)0.5 C (0.9 F)29 years16 of 100 (Routine)
29 July 1943Maunawili Rch, USdaily high min (Tie)22.8 C (73.0 F)tie12 years1 of 100 (Routine)
28 July 1943Maunawili Rch, USdaily high max (Tie)29.4 C (84.9 F)tie36 years3 of 100 (Routine)
10 July 1943Maunawili Rch, USdaily high min (Tie)22.8 C (73.0 F)tie36 years3 of 100 (Routine)
8 July 1943Maunawili Rch, USdaily high min (Tie)22.2 C (72.0 F)tie6 years1 of 100 (Routine)
5 July 1943Maunawili Rch, USdaily rain24.6 mm (1.0 in)13.4 mm (0.5 in)5 years20 of 100 (Routine)

Climate Trend

34 complete years, 1906 to 1943
Annual mean temperature at Maunawili Rch as warming stripes, 1906 to 1943 One stripe for each of 34 complete years at Maunawili Rch, 1906 to 1943. Blue stripes are years cooler than the station's own mean of 22.6 C (72.6 F); red stripes are warmer. The coolest year was 1910, at 22.0 C (71.6 F), and the warmest was 1913, at 23.2 C (73.7 F). The strongest colour marks a difference of 0.7 C (1.3 F). 1906: 23.0 C, +0.4 C from the station mean1907: 23.1 C, +0.5 C from the station mean1908: 22.6 C, 0.0 C from the station mean1909: 22.2 C, -0.4 C from the station mean1910: 22.0 C, -0.6 C from the station mean1911: 22.3 C, -0.3 C from the station mean1913: 23.2 C, +0.6 C from the station mean1914: 22.4 C, -0.2 C from the station mean1915: 22.7 C, +0.1 C from the station mean1916: 22.6 C, 0.0 C from the station mean1917: 22.8 C, +0.2 C from the station mean1918: 22.5 C, 0.0 C from the station mean1919: 22.6 C, 0.0 C from the station mean1920: 22.7 C, +0.1 C from the station mean1921: 22.5 C, -0.1 C from the station mean1922: 22.1 C, -0.4 C from the station mean1925: 22.2 C, -0.3 C from the station mean1926: 22.6 C, +0.1 C from the station mean1927: 22.4 C, -0.2 C from the station mean1928: 22.5 C, -0.1 C from the station mean1929: 22.7 C, +0.2 C from the station mean1930: 22.6 C, +0.1 C from the station mean1931: 22.8 C, +0.2 C from the station mean1932: 22.6 C, +0.1 C from the station mean1933: 22.2 C, -0.3 C from the station mean1934: 22.9 C, +0.3 C from the station mean1935: 22.5 C, -0.1 C from the station mean1936: 22.6 C, +0.1 C from the station mean1937: 22.4 C, -0.2 C from the station mean1939: 22.2 C, -0.4 C from the station mean1940: 22.9 C, +0.4 C from the station mean1941: 22.6 C, +0.1 C from the station mean1942: 22.6 C, 0.0 C from the station mean1943: 22.8 C, +0.2 C from the station mean19061910191519201925193019351940
One stripe for each of 34 complete years at Maunawili Rch, 1906 to 1943. Blue stripes are years cooler than the station's own mean of 22.6 C (72.6 F); red stripes are warmer. The coolest year was 1910, at 22.0 C (71.6 F), and the warmest was 1913, at 23.2 C (73.7 F). The strongest colour marks a difference of 0.7 C (1.3 F).
Annual mean temperature at Maunawili Rch as warming stripes, 1906 to 1943
YearAnnual mean temperatureDifference from the station mean
190623.0 C+0.40 C
190723.1 C+0.49 C
190822.6 C-0.01 C
190922.2 C-0.41 C
191022.0 C-0.57 C
191122.3 C-0.31 C
191323.2 C+0.61 C
191422.4 C-0.19 C
191522.7 C+0.11 C
191622.6 C+0.00 C
191722.8 C+0.19 C
191822.5 C-0.05 C
191922.6 C+0.00 C
192022.7 C+0.09 C
192122.5 C-0.10 C
192222.1 C-0.44 C
192522.2 C-0.32 C
192622.6 C+0.06 C
192722.4 C-0.16 C
192822.5 C-0.09 C
192922.7 C+0.18 C
193022.6 C+0.07 C
193122.8 C+0.21 C
193222.6 C+0.06 C
193322.2 C-0.33 C
193422.9 C+0.29 C
193522.5 C-0.07 C
193622.6 C+0.06 C
193722.4 C-0.21 C
193922.2 C-0.37 C
194022.9 C+0.37 C
194122.6 C+0.06 C
194222.6 C+0.03 C
194322.8 C+0.20 C

The fitted trend in annual mean temperature here over 1906 to 1943 is 0.01 C (-0.08 to 0.09) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.15 to 0.16) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Maunawili Rch
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.01 C (-0.08 to 0.09) per decade0.01 F (-0.15 to 0.16) per decade1906 to 194334Not clearly different from zero
Mean daily maximum-0.15 C (-0.28 to -0.02) per decade-0.27 F (-0.50 to -0.04) per decade1906 to 194334Fall
Mean daily minimum0.16 C (0.04 to 0.28) per decade0.3 F (0.1 to 0.5) per decade1906 to 194334Rise

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 1944
Yearly extremes at Maunawili Rch: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.3 C (91.9 F)191330.6 C (87.1 F)40
Coldest night (TNn)10.0 C (50.0 F)190511.7 C (53.1 F)40
Wettest day (Rx1day)278.6 mm (11.0 in)1914118.9 mm (4.7 in)40
Wettest five days (Rx5day)446.0 mm (17.6 in)1941227.3 mm (8.9 in)40
Longest dry spell (CDD)24 days19058 days40

Hottest day (TXx)

Hottest day (TXx) at Maunawili Rch by year The hottest day of the year at Maunawili Rch, 1905 to 1944. The record is 33.3 C (91.9 F) in 1913, marked on the chart; the median year is 30.6 C (87.1 F). 26283032341910192019301940Record: 33.3 C (91.9 F) in 1913
The hottest day of the year at Maunawili Rch, 1905 to 1944. The record is 33.3 C (91.9 F) in 1913, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Maunawili Rch by year
YearHottest day (TXx)
190530.6 C (87.1 F)
190631.7 C (89.1 F)
190732.2 C (90.0 F)
190830.0 C (86.0 F)
190931.1 C (88.0 F)
191031.1 C (88.0 F)
191130.0 C (86.0 F)
191231.1 C (88.0 F)
191333.3 C (91.9 F)
191430.6 C (87.1 F)
191531.7 C (89.1 F)
191630.0 C (86.0 F)
191731.1 C (88.0 F)
191832.2 C (90.0 F)
191931.1 C (88.0 F)
192030.6 C (87.1 F)
192130.0 C (86.0 F)
192229.4 C (84.9 F)
192330.0 C (86.0 F)
192428.3 C (82.9 F)
192529.4 C (84.9 F)
192631.1 C (88.0 F)
192730.0 C (86.0 F)
192829.4 C (84.9 F)
192930.6 C (87.1 F)
193029.4 C (84.9 F)
193131.7 C (89.1 F)
193230.6 C (87.1 F)
193330.6 C (87.1 F)
193430.6 C (87.1 F)
193531.1 C (88.0 F)
193628.9 C (84.0 F)
193730.0 C (86.0 F)
193829.4 C (84.9 F)
193930.0 C (86.0 F)
194030.0 C (86.0 F)
194130.0 C (86.0 F)
194230.6 C (87.1 F)
194331.1 C (88.0 F)
194427.8 C (82.0 F)

Coldest night (TNn)

Coldest night (TNn) at Maunawili Rch by year The coldest night of the year at Maunawili Rch, 1905 to 1944. The record is 10.0 C (50.0 F) in 1905, marked on the chart; the median year is 11.7 C (53.1 F). 101214161910192019301940Record: 10.0 C (50.0 F) in 1905
The coldest night of the year at Maunawili Rch, 1905 to 1944. The record is 10.0 C (50.0 F) in 1905, marked on the chart; the median year is 11.7 C (53.1 F).
Coldest night (TNn) at Maunawili Rch by year
YearColdest night (TNn)
190510.0 C (50.0 F)
190611.7 C (53.1 F)
190713.3 C (55.9 F)
190813.3 C (55.9 F)
190911.7 C (53.1 F)
191011.1 C (52.0 F)
191111.1 C (52.0 F)
191211.7 C (53.1 F)
191311.7 C (53.1 F)
191411.7 C (53.1 F)
191510.6 C (51.1 F)
191612.2 C (54.0 F)
191711.1 C (52.0 F)
191811.1 C (52.0 F)
191911.1 C (52.0 F)
192012.2 C (54.0 F)
192112.2 C (54.0 F)
192211.7 C (53.1 F)
192311.7 C (53.1 F)
192411.7 C (53.1 F)
192512.8 C (55.0 F)
192612.2 C (54.0 F)
192711.1 C (52.0 F)
192812.8 C (55.0 F)
192911.1 C (52.0 F)
193010.0 C (50.0 F)
193112.8 C (55.0 F)
193212.2 C (54.0 F)
193312.8 C (55.0 F)
193412.8 C (55.0 F)
193512.2 C (54.0 F)
193612.8 C (55.0 F)
193712.2 C (54.0 F)
193814.4 C (57.9 F)
193913.3 C (55.9 F)
194011.7 C (53.1 F)
194111.7 C (53.1 F)
194211.7 C (53.1 F)
194311.7 C (53.1 F)
194413.9 C (57.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Maunawili Rch by year The wettest day of the year at Maunawili Rch, 1905 to 1944. The record is 278.6 mm (11.0 in) in 1914, marked on the chart; the median year is 118.9 mm (4.7 in). 01002003001910192019301940Record: 278.6 mm (11.0 in) in 1914
The wettest day of the year at Maunawili Rch, 1905 to 1944. The record is 278.6 mm (11.0 in) in 1914, marked on the chart; the median year is 118.9 mm (4.7 in).
Wettest day (Rx1day) at Maunawili Rch by year
YearWettest day (Rx1day)
1905132.1 mm (5.2 in)
1906105.4 mm (4.1 in)
1907101.6 mm (4.0 in)
1908222.3 mm (8.8 in)
190993.2 mm (3.7 in)
1910116.3 mm (4.6 in)
1911109.2 mm (4.3 in)
191291.4 mm (3.6 in)
191395.0 mm (3.7 in)
1914278.6 mm (11.0 in)
1915126.2 mm (5.0 in)
1916201.9 mm (7.9 in)
1917214.9 mm (8.5 in)
1918196.3 mm (7.7 in)
1919159.8 mm (6.3 in)
192080.3 mm (3.2 in)
192170.6 mm (2.8 in)
192268.1 mm (2.7 in)
1923170.7 mm (6.7 in)
1924203.2 mm (8.0 in)
192566.8 mm (2.6 in)
1926108.0 mm (4.3 in)
1927171.2 mm (6.7 in)
192886.4 mm (3.4 in)
192992.2 mm (3.6 in)
1930173.2 mm (6.8 in)
1931119.6 mm (4.7 in)
1932190.8 mm (7.5 in)
1933141.0 mm (5.6 in)
193469.1 mm (2.7 in)
1935113.5 mm (4.5 in)
1936146.1 mm (5.8 in)
1937118.1 mm (4.6 in)
1938126.0 mm (5.0 in)
1939242.8 mm (9.6 in)
194085.9 mm (3.4 in)
1941198.1 mm (7.8 in)
1942120.9 mm (4.8 in)
1943104.1 mm (4.1 in)
1944102.9 mm (4.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Maunawili Rch by year The wettest five days of the year at Maunawili Rch, 1905 to 1944. The record is 446.0 mm (17.6 in) in 1941, marked on the chart; the median year is 227.3 mm (8.9 in). 01002003004005001910192019301940Record: 446.0 mm (17.6 in) in 1941
The wettest five days of the year at Maunawili Rch, 1905 to 1944. The record is 446.0 mm (17.6 in) in 1941, marked on the chart; the median year is 227.3 mm (8.9 in).
Wettest five days (Rx5day) at Maunawili Rch by year
YearWettest five days (Rx5day)
1905172.6 mm (6.8 in)
1906221.2 mm (8.7 in)
1907265.5 mm (10.5 in)
1908282.5 mm (11.1 in)
1909201.2 mm (7.9 in)
1910156.2 mm (6.1 in)
1911215.9 mm (8.5 in)
1912118.2 mm (4.7 in)
1913180.3 mm (7.1 in)
1914346.4 mm (13.6 in)
1915275.7 mm (10.9 in)
1916407.7 mm (16.1 in)
1917250.2 mm (9.9 in)
1918338.3 mm (13.3 in)
1919244.9 mm (9.6 in)
1920136.4 mm (5.4 in)
1921150.1 mm (5.9 in)
192297.1 mm (3.8 in)
1923233.4 mm (9.2 in)
1924281.7 mm (11.1 in)
1925150.4 mm (5.9 in)
1926167.5 mm (6.6 in)
1927328.4 mm (12.9 in)
1928168.0 mm (6.6 in)
1929171.8 mm (6.8 in)
1930242.6 mm (9.6 in)
1931173.2 mm (6.8 in)
1932314.0 mm (12.4 in)
1933322.9 mm (12.7 in)
1934116.3 mm (4.6 in)
1935214.6 mm (8.4 in)
1936289.6 mm (11.4 in)
1937295.3 mm (11.6 in)
1938248.7 mm (9.8 in)
1939343.1 mm (13.5 in)
1940125.3 mm (4.9 in)
1941446.0 mm (17.6 in)
1942281.9 mm (11.1 in)
1943168.7 mm (6.6 in)
1944189.1 mm (7.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Maunawili Rch by year The longest dry spell of the year at Maunawili Rch, 1905 to 1944. The record is 24 days in 1905, marked on the chart; the median year is 8 days. 5101520251910192019301940Record: 24 days in 1905
The longest dry spell of the year at Maunawili Rch, 1905 to 1944. The record is 24 days in 1905, marked on the chart; the median year is 8 days.
Longest dry spell (CDD) at Maunawili Rch by year
YearLongest dry spell (CDD)
190524 days
19066 days
19077 days
19088 days
19099 days
19108 days
19117 days
19126 days
19138 days
19149 days
19157 days
19167 days
191712 days
191811 days
191913 days
19208 days
192110 days
19227 days
19238 days
192411 days
19258 days
19267 days
19276 days
19288 days
192911 days
19308 days
193110 days
19326 days
19336 days
19348 days
19356 days
193610 days
19378 days
19389 days
19395 days
19408 days
194113 days
19426 days
19438 days
19448 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

37 years, 1905 to 1943

A day with at least 121.4 mm (4.8 in) of rain is expected about once in 2 years. A day with at least 332.8 mm (13.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Maunawili Rch: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years121.4 mm (4.8 in)
5 years169.6 mm (6.7 in)
10 years204.7 mm (8.1 in)
25 years252.9 mm (10.0 in)
50 years291.6 mm (11.5 in)Longer than the 37 years of record
100 years332.8 mm (13.1 in)Longer than the 37 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, 37 years of values from 1905 to 1943.

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: 278.6 mm (11.0 in) in 1914; 242.8 mm (9.6 in) in 1939; 222.3 mm (8.8 in) in 1908.

Download the Data

  • Data for Maunawili Rch standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Maunawili Rch 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).