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Onslow Airport Weather Records (ASN00005017)

Record envelope, standing records and threshold days for Onslow Airport (ASN00005017), Australia, with 87 years of record.

Key Facts for Onslow Airport

  • Onslow Airport (ASN00005017) is a weather station in Australia at -21.67 latitude and 115.11 longitude, 11 m (34 ft) above sea level.
  • The station reports from 1940 to 2026, 87 years of record.
  • 1,464 records set at Onslow Airport still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Onslow Airport set a daily record precipitation of 4.8 mm (0.19 in) on 29 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Australia, -21.67 latitude, 115.11 longitude.
  • Elevation: 11 m (34 ft).
  • Period of record: 1940 to 2026, 87 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record
Daily record high and record low at Onslow Airport, with 2026 drawn through them The band shows the record high and record low for each calendar day at Onslow Airport. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 0102030405060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Onslow Airport. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Onslow Airport, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan50.7 C (123.3 F)16.3 C (61.3 F)49.0 C (120.2 F)21.8 C (71.2 F)
Feb48.1 C (118.6 F)18.2 C (64.8 F)44.9 C (112.8 F)23.7 C (74.7 F)
Mar47.2 C (117.0 F)16.0 C (60.8 F)43.0 C (109.4 F)22.1 C (71.8 F)
Apr43.4 C (110.1 F)11.8 C (53.2 F)36.7 C (98.1 F)19.5 C (67.1 F)
May38.8 C (101.8 F)7.5 C (45.5 F)33.7 C (92.7 F)12.0 C (53.6 F)
Jun33.5 C (92.3 F)3.5 C (38.3 F)29.5 C (85.1 F)10.2 C (50.4 F)
Jul33.4 C (92.1 F)4.0 C (39.2 F)31.1 C (88.0 F)10.6 C (51.1 F)
Aug37.7 C (99.9 F)5.1 C (41.2 F)30.4 C (86.7 F)9.5 C (49.1 F)
Sep41.7 C (107.1 F)8.4 C (47.1 F)37.4 C (99.3 F)15.3 C (59.5 F)
Oct46.0 C (114.8 F)11.5 C (52.7 F)28.4 C (83.1 F)16.0 C (60.8 F)
Nov44.8 C (112.6 F)13.1 C (55.6 F)n/an/a
Dec49.2 C (120.6 F)16.4 C (61.5 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Onslow Airport by the year they were set 1,464 records at Onslow Airport still stand. 2024 holds the most, with 41. 02040601940: 11943: 221944: 361945: 291946: 401947: 241948: 151949: 231950: 151951: 341952: 381953: 321954: 321955: 161956: 261957: 191958: 231959: 391960: 271961: 301962: 101963: 191964: 201965: 201966: 201967: 181968: 261969: 231970: 251971: 281972: 211973: 251974: 131975: 81998: 211999: 112000: 192001: 212002: 152003: 222004: 162005: 172006: 222007: 222008: 112009: 192010: 262011: 122012: 212013: 262014: 172015: 312016: 292017: 252018: 322019: 352020: 402021: 162022: 252023: 222024: 412025: 372026: 16194019491956196319701999200620132020
1,464 records at Onslow Airport still stand. 2024 holds the most, with 41.
Standing records at Onslow Airport by the year they were set
Year setStanding records
19401
194322
194436
194529
194640
194724
194815
194923
195015
195134
195238
195332
195432
195516
195626
195719
195823
195939
196027
196130
196210
196319
196420
196520
196620
196718
196826
196923
197025
197128
197221
197325
197413
19758
199821
199911
200019
200121
200215
200322
200416
200517
200622
200722
200811
200919
201026
201112
201221
201326
201417
201531
201629
201725
201832
201935
202040
202116
202225
202322
202441
202537
202616

All-Time Record Progression

8 new records
When Onslow Airport set new all-time records 8 all-time records were set at Onslow Airport between 8 July 1998 and 4 March 2025. Each dot is a new record. Record low maximum temperatureRecord high maximum temperatureRecord high minimum temperature8 July 1998: Record low maximum temperature 16.0 C (60.8 F)20 January 2003: Record high maximum temperature 48.6 C (119.5 F)21 January 2003: Record high maximum temperature 48.7 C (119.7 F)21 January 2003: Record high minimum temperature 32.0 C (89.6 F)11 January 2008: Record high maximum temperature 48.9 C (120.0 F)22 December 2011: Record high maximum temperature 49.2 C (120.6 F)13 January 2022: Record high maximum temperature 50.7 C (123.3 F)4 March 2025: Record high minimum temperature 32.1 C (89.8 F)200020052010201520202025
8 all-time records were set at Onslow Airport between 8 July 1998 and 4 March 2025. Each dot is a new record.
When Onslow Airport set new all-time records
DateKindDetail
1998-07-08Record low maximum temperatureRecord low maximum temperature 16.0 C (60.8 F)
2003-01-20Record high maximum temperatureRecord high maximum temperature 48.6 C (119.5 F)
2003-01-21Record high maximum temperatureRecord high maximum temperature 48.7 C (119.7 F)
2003-01-21Record high minimum temperatureRecord high minimum temperature 32.0 C (89.6 F)
2008-01-11Record high maximum temperatureRecord high maximum temperature 48.9 C (120.0 F)
2011-12-22Record high maximum temperatureRecord high maximum temperature 49.2 C (120.6 F)
2022-01-13Record high maximum temperatureRecord high maximum temperature 50.7 C (123.3 F)
2025-03-04Record high minimum temperatureRecord high minimum temperature 32.1 C (89.8 F)

Wettest Day of Each Month

Mar: 312.2 mm (12.3 in)
Record daily precipitation for each month at Onslow Airport The wettest day on record for each calendar month at Onslow Airport. The most was 312.2 mm (12.3 in) on 3 March 1961. 0100200300400 Jan: 238.4 mm (9.4 in), 27 January 2009 Jan Feb: 274.1 mm (10.8 in), 12 February 1961 Feb Mar: 312.2 mm (12.3 in), 3 March 1961 Mar Apr: 82.6 mm (3.3 in), 28 April 1970 Apr May: 106.9 mm (4.2 in), 17 May 1942 May Jun: 94.0 mm (3.7 in), 6 June 1951 Jun Jul: 81.6 mm (3.2 in), 10 July 2005 Jul Aug: 61.5 mm (2.4 in), 27 August 1941 Aug Sep: 15.0 mm (0.6 in), 11 September 1970 Sep Oct: 10.2 mm (0.4 in), 9 October 2008 Oct Nov: 27.7 mm (1.1 in), 15 November 1971 Nov Dec: 41.0 mm (1.6 in), 6 December 1998 Dec
The wettest day on record for each calendar month at Onslow Airport. The most was 312.2 mm (12.3 in) on 3 March 1961.
Record daily precipitation for each month at Onslow Airport
MonthRecord daily precipitation (mm)Date
Jan238.4 mm (9.4 in)27 January 2009
Feb274.1 mm (10.8 in)12 February 1961
Mar312.2 mm (12.3 in)3 March 1961
Apr82.6 mm (3.3 in)28 April 1970
May106.9 mm (4.2 in)17 May 1942
Jun94.0 mm (3.7 in)6 June 1951
Jul81.6 mm (3.2 in)10 July 2005
Aug61.5 mm (2.4 in)27 August 1941
Sep15.0 mm (0.6 in)11 September 1970
Oct10.2 mm (0.4 in)9 October 2008
Nov27.7 mm (1.1 in)15 November 1971
Dec41.0 mm (1.6 in)6 December 1998

Period of Record Coverage

1940 to 2026
Days with data per year at Onslow Airport 63 years of record at Onslow Airport, 1940 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1940, 1943, 1946, 1975, 1998, 1999, 2026. 1940: 22 of 366 days1943: 241 of 365 days1944: 363 of 366 days1945: 364 of 365 days1946: 328 of 365 days1947: 362 of 365 days1948: 365 of 366 days1949: 365 of 365 days1950: 363 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 363 of 365 days1972: 365 of 366 days1973: 363 of 365 days1974: 365 of 365 days1975: 59 of 365 days1998: 274 of 365 days1999: 312 of 365 days2000: 353 of 366 days2001: 358 of 365 days2002: 359 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 358 of 365 days2006: 337 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 363 of 365 days2011: 365 of 365 days2012: 365 of 366 days2013: 365 of 365 days2014: 363 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 360 of 365 days2018: 364 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 362 of 365 days2022: 363 of 365 days2023: 363 of 365 days2024: 363 of 366 days2025: 364 of 365 days2026: 272 of 365 days1940195019601970200020102020
63 years of record at Onslow Airport, 1940 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1940, 1943, 1946, 1975, 1998, 1999, 2026.
Days with data per year at Onslow Airport
YearDays with dataShare of yearComplete
1940226%No
194324166%No
194436399%Yes
1945364100%Yes
194632890%No
194736299%Yes
1948365100%Yes
1949365100%Yes
195036399%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
197136399%Yes
1972365100%Yes
197336399%Yes
1974365100%Yes
19755916%No
199827475%No
199931285%No
200035396%Yes
200135898%Yes
200235998%Yes
2003365100%Yes
2004366100%Yes
200535898%Yes
200633792%Yes
2007365100%Yes
2008366100%Yes
2009364100%Yes
201036399%Yes
2011365100%Yes
2012365100%Yes
2013365100%Yes
201436399%Yes
2015365100%Yes
2016366100%Yes
201736099%Yes
2018364100%Yes
2019365100%Yes
2020366100%Yes
202136299%Yes
202236399%Yes
202336399%Yes
202436399%Yes
2025364100%Yes
202627275%No

Latest Records

20
Latest records at Onslow Airport
DateStationRecordValueBeat old record byOld record stoodSignificance
29 September 2026Onslow Airport, AUdaily rain (Provisional)4.8 mm (0.19 in)4.5 mm (0.18 in)56 years20 of 100 (Routine)
25 September 2026Onslow Airport, AUdaily high min (Provisional)20.6 C (69.1 F)0.9 C (1.6 F)8 years13 of 100 (Routine)
23 September 2026Onslow Airport, AUdaily high min (Provisional)21.2 C (70.2 F)0.2 C (0.4 F)1 year8 of 100 (Routine)
17 September 2026Onslow Airport, AUdaily high min (Provisional)22.4 C (72.3 F)1.3 C (2.3 F)8 years15 of 100 (Routine)
1 September 2026Onslow Airport, AUdaily high min (Tie, Provisional)17.7 C (63.9 F)tie1 year2 of 100 (Routine)
22 August 2026Onslow Airport, AUdaily high min (Provisional)20.3 C (68.5 F)0.8 C (1.4 F)0 years11 of 100 (Routine)
21 August 2026Onslow Airport, AUdaily high min (Provisional)20.1 C (68.2 F)1.2 C (2.2 F)0 years12 of 100 (Routine)
20 August 2026Onslow Airport, AUdaily high min (Provisional)20.3 C (68.5 F)0.6 C (1.1 F)79 years33 of 100 (Routine)
18 August 2026Onslow Airport, AUdaily high min (Provisional)20.8 C (69.4 F)1.8 C (3.2 F)24 years22 of 100 (Routine)
8 August 2026Onslow Airport, AUdaily high min20.4 C (68.7 F)1.1 C (2.0 F)4 years13 of 100 (Routine)
7 August 2026Onslow Airport, AUdaily high min20.6 C (69.1 F)1.0 C (1.8 F)3 years11 of 100 (Routine)
6 August 2026Onslow Airport, AUdaily high min20.2 C (68.4 F)1.1 C (2.0 F)3 years12 of 100 (Routine)
5 August 2026Onslow Airport, AUdaily high min20.4 C (68.7 F)1.2 C (2.2 F)12 years15 of 100 (Routine)
4 August 2026Onslow Airport, AUdaily high min20.6 C (69.1 F)2.0 C (3.6 F)20 years21 of 100 (Routine)
3 August 2026Onslow Airport, AUdaily high min20.7 C (69.3 F)1.9 C (3.4 F)20 years21 of 100 (Routine)
22 July 2026Onslow Airport, AUdaily high max31.1 C (88.0 F)1.1 C (2.0 F)24 years19 of 100 (Routine)
21 July 2026Onslow Airport, AUdaily high max31.1 C (88.0 F)0.4 C (0.7 F)23 years15 of 100 (Routine)
12 June 2026Onslow Airport, AUdaily rain27.6 mm (1.1 in)4.7 mm (0.19 in)52 years25 of 100 (Routine)
9 June 2026Onslow Airport, AUdaily rain13.4 mm (0.5 in)6.0 mm (0.24 in)57 years20 of 100 (Routine)
31 May 2026Onslow Airport, AUdaily high min20.6 C (69.1 F)0.3 C (0.5 F)67 years29 of 100 (Routine)

Climate Trend

54 complete years, 1944 to 2025
Annual mean temperature at Onslow Airport as warming stripes, 1944 to 2025 One stripe for each of 54 complete years at Onslow Airport, 1944 to 2025. Blue stripes are years cooler than the station's own mean of 25.7 C (78.3 F); red stripes are warmer. The coolest year was 1952, at 24.4 C (76.0 F), and the warmest was 2024, at 27.3 C (81.2 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1944: 25.4 C, -0.3 C from the station mean1945: 25.3 C, -0.4 C from the station mean1947: 25.2 C, -0.5 C from the station mean1948: 25.4 C, -0.3 C from the station mean1949: 24.8 C, -0.9 C from the station mean1950: 25.4 C, -0.3 C from the station mean1951: 24.7 C, -1.0 C from the station mean1952: 24.4 C, -1.3 C from the station mean1953: 25.0 C, -0.8 C from the station mean1954: 25.7 C, 0.0 C from the station mean1955: 25.1 C, -0.7 C from the station mean1956: 25.0 C, -0.7 C from the station mean1957: 25.5 C, -0.3 C from the station mean1958: 25.3 C, -0.4 C from the station mean1959: 25.7 C, -0.1 C from the station mean1960: 24.6 C, -1.1 C from the station mean1961: 25.1 C, -0.6 C from the station mean1962: 25.5 C, -0.3 C from the station mean1963: 25.4 C, -0.3 C from the station mean1964: 25.3 C, -0.4 C from the station mean1965: 25.1 C, -0.7 C from the station mean1966: 24.6 C, -1.1 C from the station mean1967: 25.1 C, -0.6 C from the station mean1968: 24.6 C, -1.1 C from the station mean1969: 25.4 C, -0.4 C from the station mean1970: 25.3 C, -0.5 C from the station mean1971: 24.9 C, -0.8 C from the station mean1972: 25.6 C, -0.2 C from the station mean1973: 25.6 C, -0.1 C from the station mean1974: 25.4 C, -0.3 C from the station mean2000: 25.6 C, -0.1 C from the station mean2002: 26.0 C, +0.3 C from the station mean2003: 26.1 C, +0.4 C from the station mean2004: 26.4 C, +0.6 C from the station mean2005: 26.0 C, +0.3 C from the station mean2007: 26.5 C, +0.8 C from the station mean2008: 26.0 C, +0.3 C from the station mean2009: 26.0 C, +0.3 C from the station mean2010: 26.4 C, +0.7 C from the station mean2011: 25.9 C, +0.2 C from the station mean2012: 26.5 C, +0.7 C from the station mean2013: 26.7 C, +0.9 C from the station mean2014: 26.6 C, +0.9 C from the station mean2015: 26.5 C, +0.8 C from the station mean2016: 26.4 C, +0.7 C from the station mean2017: 26.3 C, +0.6 C from the station mean2018: 26.3 C, +0.5 C from the station mean2019: 27.2 C, +1.4 C from the station mean2020: 27.2 C, +1.4 C from the station mean2021: 26.4 C, +0.7 C from the station mean2022: 25.9 C, +0.2 C from the station mean2023: 26.6 C, +0.8 C from the station mean2024: 27.3 C, +1.6 C from the station mean2025: 27.2 C, +1.4 C from the station mean194419501960197019801990200020102020
One stripe for each of 54 complete years at Onslow Airport, 1944 to 2025. Blue stripes are years cooler than the station's own mean of 25.7 C (78.3 F); red stripes are warmer. The coolest year was 1952, at 24.4 C (76.0 F), and the warmest was 2024, at 27.3 C (81.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Onslow Airport as warming stripes, 1944 to 2025
YearAnnual mean temperatureDifference from the station mean
194425.4 C-0.30 C
194525.3 C-0.40 C
194725.2 C-0.49 C
194825.4 C-0.32 C
194924.8 C-0.88 C
195025.4 C-0.29 C
195124.7 C-1.01 C
195224.4 C-1.30 C
195325.0 C-0.77 C
195425.7 C-0.04 C
195525.1 C-0.67 C
195625.0 C-0.72 C
195725.5 C-0.25 C
195825.3 C-0.39 C
195925.7 C-0.07 C
196024.6 C-1.10 C
196125.1 C-0.64 C
196225.5 C-0.25 C
196325.4 C-0.34 C
196425.3 C-0.41 C
196525.1 C-0.67 C
196624.6 C-1.13 C
196725.1 C-0.59 C
196824.6 C-1.14 C
196925.4 C-0.35 C
197025.3 C-0.46 C
197124.9 C-0.84 C
197225.6 C-0.17 C
197325.6 C-0.14 C
197425.4 C-0.33 C
200025.6 C-0.12 C
200226.0 C+0.27 C
200326.1 C+0.40 C
200426.4 C+0.64 C
200526.0 C+0.29 C
200726.5 C+0.80 C
200826.0 C+0.27 C
200926.0 C+0.29 C
201026.4 C+0.71 C
201125.9 C+0.17 C
201226.5 C+0.74 C
201326.7 C+0.93 C
201426.6 C+0.86 C
201526.5 C+0.76 C
201626.4 C+0.67 C
201726.3 C+0.62 C
201826.3 C+0.54 C
201927.2 C+1.45 C
202027.2 C+1.43 C
202126.4 C+0.66 C
202225.9 C+0.22 C
202326.6 C+0.85 C
202427.3 C+1.59 C
202527.2 C+1.44 C

The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1944 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.5) per decade. The slope is a straight line fitted to 54 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Onslow Airport
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.2 to 0.3) per decade0.4 F (0.3 to 0.5) per decade1944 to 202554Rise
Mean daily maximum0.2 C (0.1 to 0.2) per decade0.3 F (0.2 to 0.4) per decade1944 to 202554Rise
Mean daily minimum0.3 C (0.2 to 0.3) per decade0.5 F (0.4 to 0.5) per decade1944 to 202554Rise

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

1940 to 2026
Yearly extremes at Onslow Airport: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)50.7 C (123.3 F)202246.4 C (115.5 F)63
Coldest night (TNn)3.5 C (38.3 F)19468.2 C (46.8 F)62
Wettest day (Rx1day)312.2 mm (12.3 in)196161.7 mm (2.4 in)65
Wettest five days (Rx5day)357.7 mm (14.1 in)196192.3 mm (3.6 in)65
Longest dry spell (CDD)218 days1944111 days65

Hottest day (TXx)

Hottest day (TXx) at Onslow Airport by year The hottest day of the year at Onslow Airport, 1940 to 2026. The record is 50.7 C (123.3 F) in 2022, marked on the chart; the median year is 46.4 C (115.5 F). 30354045505519401960198020002020Record: 50.7 C (123.3 F) in 2022
The hottest day of the year at Onslow Airport, 1940 to 2026. The record is 50.7 C (123.3 F) in 2022, marked on the chart; the median year is 46.4 C (115.5 F).
Hottest day (TXx) at Onslow Airport by year
YearHottest day (TXx)
194032.6 C (90.7 F)
1941n/a
1942n/a
194345.0 C (113.0 F)
194445.5 C (113.9 F)
194544.3 C (111.7 F)
194644.8 C (112.6 F)
194745.9 C (114.6 F)
194846.5 C (115.7 F)
194943.3 C (109.9 F)
195047.3 C (117.1 F)
195143.3 C (109.9 F)
195244.6 C (112.3 F)
195344.9 C (112.8 F)
195447.0 C (116.6 F)
195547.9 C (118.2 F)
195646.4 C (115.5 F)
195744.4 C (111.9 F)
195846.7 C (116.1 F)
195948.1 C (118.6 F)
196046.2 C (115.2 F)
196145.0 C (113.0 F)
196246.0 C (114.8 F)
196346.4 C (115.5 F)
196445.4 C (113.7 F)
196544.9 C (112.8 F)
196646.2 C (115.2 F)
196744.3 C (111.7 F)
196847.1 C (116.8 F)
196945.0 C (113.0 F)
197046.9 C (116.4 F)
197147.1 C (116.8 F)
197246.5 C (115.7 F)
197346.4 C (115.5 F)
197442.9 C (109.2 F)
197546.1 C (115.0 F)
199848.0 C (118.4 F)
199946.0 C (114.8 F)
200045.0 C (113.0 F)
200144.3 C (111.7 F)
200246.0 C (114.8 F)
200348.7 C (119.7 F)
200447.4 C (117.3 F)
200547.5 C (117.5 F)
200648.2 C (118.8 F)
200745.7 C (114.3 F)
200848.9 C (120.0 F)
200946.7 C (116.1 F)
201048.8 C (119.8 F)
201149.2 C (120.6 F)
201244.8 C (112.6 F)
201346.8 C (116.2 F)
201448.7 C (119.7 F)
201547.8 C (118.0 F)
201646.9 C (116.4 F)
201746.7 C (116.1 F)
201849.1 C (120.4 F)
201947.2 C (117.0 F)
202045.1 C (113.2 F)
202146.7 C (116.1 F)
202250.7 C (123.3 F)
202349.3 C (120.7 F)
202448.7 C (119.7 F)
202545.7 C (114.3 F)
202649.0 C (120.2 F)

Coldest night (TNn)

Coldest night (TNn) at Onslow Airport by year The coldest night of the year at Onslow Airport, 1940 to 2026. The record is 3.5 C (38.3 F) in 1946, marked on the chart; the median year is 8.2 C (46.8 F). 051015202519401960198020002020Record: 3.5 C (38.3 F) in 1946
The coldest night of the year at Onslow Airport, 1940 to 2026. The record is 3.5 C (38.3 F) in 1946, marked on the chart; the median year is 8.2 C (46.8 F).
Coldest night (TNn) at Onslow Airport by year
YearColdest night (TNn)
1940n/a
1941n/a
1942n/a
19436.8 C (44.2 F)
19445.6 C (42.1 F)
19455.9 C (42.6 F)
19463.5 C (38.3 F)
19478.3 C (46.9 F)
19486.4 C (43.5 F)
19498.5 C (47.3 F)
19506.1 C (43.0 F)
19514.0 C (39.2 F)
19527.2 C (45.0 F)
19538.0 C (46.4 F)
19547.1 C (44.8 F)
19556.7 C (44.1 F)
19567.2 C (45.0 F)
19575.2 C (41.4 F)
19587.2 C (45.0 F)
19598.3 C (46.9 F)
19607.4 C (45.3 F)
19616.2 C (43.2 F)
19627.2 C (45.0 F)
19638.9 C (48.0 F)
19648.1 C (46.6 F)
19657.1 C (44.8 F)
19666.3 C (43.3 F)
19675.6 C (42.1 F)
19685.1 C (41.2 F)
19697.9 C (46.2 F)
19708.2 C (46.8 F)
19717.8 C (46.0 F)
19727.3 C (45.1 F)
19739.5 C (49.1 F)
19748.8 C (47.8 F)
197520.2 C (68.4 F)
199810.0 C (50.0 F)
19999.0 C (48.2 F)
20009.0 C (48.2 F)
20018.0 C (46.4 F)
20028.0 C (46.4 F)
20039.6 C (49.3 F)
200411.0 C (51.8 F)
20059.9 C (49.8 F)
20067.5 C (45.5 F)
200710.0 C (50.0 F)
20089.1 C (48.4 F)
20099.5 C (49.1 F)
201010.3 C (50.5 F)
201110.6 C (51.1 F)
20127.5 C (45.5 F)
20139.3 C (48.7 F)
20149.3 C (48.7 F)
201510.9 C (51.6 F)
20168.9 C (48.0 F)
20177.8 C (46.0 F)
20188.2 C (46.8 F)
201910.0 C (50.0 F)
202011.0 C (51.8 F)
20218.3 C (46.9 F)
20229.4 C (48.9 F)
20238.3 C (46.9 F)
202411.2 C (52.2 F)
20259.1 C (48.4 F)
20269.5 C (49.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Onslow Airport by year The wettest day of the year at Onslow Airport, 1940 to 2026. The record is 312.2 mm (12.3 in) in 1961, marked on the chart; the median year is 61.7 mm (2.4 in). 010020030040019401960198020002020Record: 312.2 mm (12.3 in) in 1961
The wettest day of the year at Onslow Airport, 1940 to 2026. The record is 312.2 mm (12.3 in) in 1961, marked on the chart; the median year is 61.7 mm (2.4 in).
Wettest day (Rx1day) at Onslow Airport by year
YearWettest day (Rx1day)
19408.4 mm (0.33 in)
194161.5 mm (2.4 in)
1942160.3 mm (6.3 in)
194359.7 mm (2.4 in)
194418.8 mm (0.7 in)
1945115.8 mm (4.6 in)
194683.8 mm (3.3 in)
1947106.4 mm (4.2 in)
1948104.9 mm (4.1 in)
194961.7 mm (2.4 in)
195041.9 mm (1.6 in)
195194.0 mm (3.7 in)
19520.3 mm (0.01 in)
19530.0 mm (0.00 in)
19540.0 mm (0.00 in)
19550.0 mm (0.00 in)
19560.0 mm (0.00 in)
19570.0 mm (0.00 in)
19580.0 mm (0.00 in)
19590.0 mm (0.00 in)
196052.6 mm (2.1 in)
1961312.2 mm (12.3 in)
196225.4 mm (1.0 in)
1963208.3 mm (8.2 in)
1964134.6 mm (5.3 in)
1965171.2 mm (6.7 in)
196619.3 mm (0.8 in)
196759.7 mm (2.4 in)
196864.5 mm (2.5 in)
196965.0 mm (2.6 in)
197082.6 mm (3.3 in)
1971185.7 mm (7.3 in)
197249.0 mm (1.9 in)
1973147.8 mm (5.8 in)
197460.8 mm (2.4 in)
1975246.0 mm (9.7 in)
199847.0 mm (1.9 in)
1999106.0 mm (4.2 in)
200084.0 mm (3.3 in)
200153.0 mm (2.1 in)
200259.0 mm (2.3 in)
200334.0 mm (1.3 in)
200438.4 mm (1.5 in)
200581.6 mm (3.2 in)
2006205.8 mm (8.1 in)
200715.0 mm (0.6 in)
200895.4 mm (3.8 in)
2009238.4 mm (9.4 in)
201017.4 mm (0.7 in)
2011107.4 mm (4.2 in)
201222.4 mm (0.9 in)
201367.4 mm (2.7 in)
201421.8 mm (0.9 in)
2015106.0 mm (4.2 in)
201680.0 mm (3.1 in)
201771.2 mm (2.8 in)
201887.0 mm (3.4 in)
201932.6 mm (1.3 in)
202038.6 mm (1.5 in)
202174.8 mm (2.9 in)
202287.6 mm (3.4 in)
202324.6 mm (1.0 in)
202416.0 mm (0.6 in)
202578.0 mm (3.1 in)
2026117.8 mm (4.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Onslow Airport by year The wettest five days of the year at Onslow Airport, 1940 to 2026. The record is 357.7 mm (14.1 in) in 1961, marked on the chart; the median year is 92.3 mm (3.6 in). 010020030040019401960198020002020Record: 357.7 mm (14.1 in) in 1961
The wettest five days of the year at Onslow Airport, 1940 to 2026. The record is 357.7 mm (14.1 in) in 1961, marked on the chart; the median year is 92.3 mm (3.6 in).
Wettest five days (Rx5day) at Onslow Airport by year
YearWettest five days (Rx5day)
194010.2 mm (0.4 in)
194181.5 mm (3.2 in)
1942236.7 mm (9.3 in)
194392.4 mm (3.6 in)
194418.8 mm (0.7 in)
1945118.6 mm (4.7 in)
194693.5 mm (3.7 in)
1947165.7 mm (6.5 in)
1948230.8 mm (9.1 in)
1949123.3 mm (4.9 in)
195053.9 mm (2.1 in)
1951174.8 mm (6.9 in)
19520.3 mm (0.01 in)
19530.0 mm (0.00 in)
19540.0 mm (0.00 in)
19550.0 mm (0.00 in)
19560.0 mm (0.00 in)
19570.0 mm (0.00 in)
19580.0 mm (0.00 in)
19590.0 mm (0.00 in)
196067.8 mm (2.7 in)
1961357.7 mm (14.1 in)
196238.9 mm (1.5 in)
1963279.4 mm (11.0 in)
1964168.1 mm (6.6 in)
1965180.0 mm (7.1 in)
196629.6 mm (1.2 in)
196766.9 mm (2.6 in)
1968111.5 mm (4.4 in)
196992.3 mm (3.6 in)
1970237.8 mm (9.4 in)
1971249.8 mm (9.8 in)
197275.2 mm (3.0 in)
1973216.5 mm (8.5 in)
197487.0 mm (3.4 in)
1975311.8 mm (12.3 in)
199849.0 mm (1.9 in)
1999106.0 mm (4.2 in)
2000199.0 mm (7.8 in)
200160.4 mm (2.4 in)
200261.0 mm (2.4 in)
200350.2 mm (2.0 in)
200466.2 mm (2.6 in)
2005117.0 mm (4.6 in)
2006221.8 mm (8.7 in)
200717.8 mm (0.7 in)
2008198.2 mm (7.8 in)
2009275.2 mm (10.8 in)
201033.8 mm (1.3 in)
2011177.6 mm (7.0 in)
201238.4 mm (1.5 in)
2013103.0 mm (4.1 in)
201447.6 mm (1.9 in)
2015134.0 mm (5.3 in)
2016111.4 mm (4.4 in)
2017143.4 mm (5.6 in)
201897.2 mm (3.8 in)
201937.2 mm (1.5 in)
202038.6 mm (1.5 in)
202184.2 mm (3.3 in)
2022141.6 mm (5.6 in)
202377.2 mm (3.0 in)
202431.2 mm (1.2 in)
2025154.4 mm (6.1 in)
2026132.0 mm (5.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Onslow Airport by year The longest dry spell of the year at Onslow Airport, 1940 to 2026. The record is 218 days in 1944, marked on the chart; the median year is 111 days. 05010015020025019401960198020002020Record: 218 days in 1944
The longest dry spell of the year at Onslow Airport, 1940 to 2026. The record is 218 days in 1944, marked on the chart; the median year is 111 days.
Longest dry spell (CDD) at Onslow Airport by year
YearLongest dry spell (CDD)
1940142 days
1941125 days
1942102 days
1943154 days
1944218 days
1945151 days
1946111 days
194765 days
1948166 days
194990 days
1950115 days
1951153 days
1952122 days
195361 days
1954122 days
195561 days
195631 days
195730 days
195828 days
1959122 days
1960111 days
1961182 days
1962122 days
1963170 days
196488 days
1965142 days
196689 days
1967144 days
1968112 days
1969191 days
1970102 days
1971104 days
1972133 days
197394 days
197471 days
197533 days
199830 days
199951 days
2000123 days
2001102 days
200287 days
2003133 days
2004133 days
200569 days
2006213 days
2007156 days
200864 days
200986 days
2010125 days
2011173 days
2012138 days
2013123 days
201454 days
201554 days
201645 days
201777 days
201895 days
2019127 days
2020119 days
202165 days
202248 days
202354 days
202442 days
2025116 days
202693 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

51 years, 1941 to 2025

A day with at least 69.6 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 327.2 mm (12.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Onslow Airport: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years69.6 mm (2.7 in)
5 years121.3 mm (4.8 in)
10 years161.5 mm (6.4 in)
25 years220.4 mm (8.7 in)
50 years270.7 mm (10.7 in)
100 years327.2 mm (12.9 in)Longer than the 51 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, 51 years of values from 1941 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: 312.2 mm (12.3 in) in 1961; 238.4 mm (9.4 in) in 2009; 208.3 mm (8.2 in) in 1963.

Download the Data

  • Data for Onslow Airport standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Onslow Airport 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).