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Chatham Islands AWS Weather Records (NZ000939870)

Record envelope, standing records and threshold days for Chatham Islands AWS (NZ000939870), New Zealand, with 50 years of record.

Key Facts for Chatham Islands AWS

  • Chatham Islands AWS (NZ000939870) is a weather station in New Zealand at -43.95 latitude and -176.57 longitude, 49 m (161 ft) above sea level.
  • The station reports from 1956 to 2005, 50 years of record.
  • 1,464 records set at Chatham Islands AWS still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Chatham Islands AWS set a daily record high maximum temperature of 21.9 C (71.4 F) on 21 December 2005.

About the Station

  • Location: New Zealand, -43.95 latitude, -176.57 longitude.
  • Elevation: 49 m (161 ft).
  • Period of record: 1956 to 2005, 50 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Chatham Islands AWS, with 2026 drawn through them The band shows the record high and record low for each calendar day at Chatham Islands AWS. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -100102030 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Chatham Islands AWS. 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 Chatham Islands AWS, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.5 C (74.3 F)4.9 C (40.8 F)n/an/a
Feb23.8 C (74.8 F)4.7 C (40.5 F)n/an/a
Mar22.3 C (72.1 F)2.7 C (36.9 F)n/an/a
Apr20.8 C (69.4 F)2.1 C (35.8 F)n/an/a
May18.4 C (65.1 F)1.1 C (34.0 F)n/an/a
Jun17.7 C (63.9 F)-0.7 C (30.7 F)n/an/a
Jul17.8 C (64.0 F)-0.5 C (31.1 F)n/an/a
Aug15.3 C (59.5 F)-2.3 C (27.9 F)n/an/a
Sep15.5 C (59.9 F)-0.4 C (31.3 F)n/an/a
Oct24.5 C (76.1 F)0.2 C (32.4 F)n/an/a
Nov24.8 C (76.6 F)1.1 C (34.0 F)n/an/a
Dec22.6 C (72.7 F)3.3 C (37.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Chatham Islands AWS by the year they were set 1,464 records at Chatham Islands AWS still stand. 1972 holds the most, with 50. 02040601956: 21957: 301958: 381959: 241960: 241961: 301962: 421963: 281964: 201965: 221966: 391967: 311968: 251969: 311970: 221972: 501973: 291974: 371975: 431976: 371977: 211978: 121979: 241980: 131981: 201982: 251983: 241984: 361985: 421986: 251987: 161988: 301989: 371990: 391991: 151992: 381993: 241994: 241995: 491996: 241997: 211998: 461999: 432000: 342001: 402002: 322003: 322004: 322005: 421956196119661972197719821987199219972002
1,464 records at Chatham Islands AWS still stand. 1972 holds the most, with 50.
Standing records at Chatham Islands AWS by the year they were set
Year setStanding records
19562
195730
195838
195924
196024
196130
196242
196328
196420
196522
196639
196731
196825
196931
197022
197250
197329
197437
197543
197637
197721
197812
197924
198013
198120
198225
198324
198436
198542
198625
198716
198830
198937
199039
199115
199238
199324
199424
199549
199624
199721
199846
199943
200034
200140
200232
200332
200432
200542

All-Time Record Progression

3 new records
When Chatham Islands AWS set new all-time records 3 all-time records were set at Chatham Islands AWS between 13 February 1988 and 19 November 1995. Each dot is a new record. Record high maximum temperature13 February 1988: Record high maximum temperature 23.8 C (74.8 F)31 October 1995: Record high maximum temperature 24.5 C (76.1 F)19 November 1995: Record high maximum temperature 24.8 C (76.6 F)19901995
3 all-time records were set at Chatham Islands AWS between 13 February 1988 and 19 November 1995. Each dot is a new record.
When Chatham Islands AWS set new all-time records
DateKindDetail
1988-02-13Record high maximum temperatureRecord high maximum temperature 23.8 C (74.8 F)
1995-10-31Record high maximum temperatureRecord high maximum temperature 24.5 C (76.1 F)
1995-11-19Record high maximum temperatureRecord high maximum temperature 24.8 C (76.6 F)

Wettest Day of Each Month

May: 67.1 mm (2.6 in)
Record daily precipitation for each month at Chatham Islands AWS The wettest day on record for each calendar month at Chatham Islands AWS. The most was 67.1 mm (2.6 in) on 5 May 2004. 020406080 Jan: 38.1 mm (1.5 in), 19 January 2002 Jan Feb: 45.0 mm (1.8 in), 3 February 1997 Feb Mar: 47.0 mm (1.9 in), 19 March 2004 Mar Apr: 40.9 mm (1.6 in), 8 April 2003 Apr May: 67.1 mm (2.6 in), 5 May 2004 May Jun: 30.2 mm (1.2 in), 4 June 2003 Jun Jul: 30.0 mm (1.2 in), 10 July 1997 Jul Aug: 41.7 mm (1.6 in), 17 August 2004 Aug Sep: 32.0 mm (1.3 in), 30 September 1996 Sep Oct: 29.0 mm (1.1 in), 19 October 2004 Oct Nov: 42.9 mm (1.7 in), 17 November 1996 Nov Dec: 47.0 mm (1.9 in), 20 December 1994 Dec
The wettest day on record for each calendar month at Chatham Islands AWS. The most was 67.1 mm (2.6 in) on 5 May 2004.
Record daily precipitation for each month at Chatham Islands AWS
MonthRecord daily precipitation (mm)Date
Jan38.1 mm (1.5 in)19 January 2002
Feb45.0 mm (1.8 in)3 February 1997
Mar47.0 mm (1.9 in)19 March 2004
Apr40.9 mm (1.6 in)8 April 2003
May67.1 mm (2.6 in)5 May 2004
Jun30.2 mm (1.2 in)4 June 2003
Jul30.0 mm (1.2 in)10 July 1997
Aug41.7 mm (1.6 in)17 August 2004
Sep32.0 mm (1.3 in)30 September 1996
Oct29.0 mm (1.1 in)19 October 2004
Nov42.9 mm (1.7 in)17 November 1996
Dec47.0 mm (1.9 in)20 December 1994

Period of Record Coverage

1956 to 2005
Days with data per year at Chatham Islands AWS 49 years of record at Chatham Islands AWS, 1956 to 2005. 2 years have data for under 90 percent of days and are left out of rankings: 1956, 1970. 1956: 92 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: 364 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 273 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 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: 364 of 366 days1993: 364 of 365 days1994: 359 of 365 days1995: 342 of 365 days1996: 365 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 364 of 366 days2001: 358 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 360 of 365 days19601970198019902000
49 years of record at Chatham Islands AWS, 1956 to 2005. 2 years have data for under 90 percent of days and are left out of rankings: 1956, 1970.
Days with data per year at Chatham Islands AWS
YearDays with dataShare of yearComplete
19569225%No
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967364100%Yes
1968366100%Yes
1969365100%Yes
197027375%No
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%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
199236499%Yes
1993364100%Yes
199435998%Yes
199534294%Yes
1996365100%Yes
1997364100%Yes
1998365100%Yes
1999365100%Yes
200036499%Yes
200135898%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
200536099%Yes

Latest Records

20
Latest records at Chatham Islands AWS
DateStationRecordValueBeat old record byOld record stoodSignificance
21 December 2005Chatham Islands AWS, NZdaily high max21.9 C (71.4 F)1.3 C (2.3 F)20 years17 of 100 (Routine)
20 December 2005Chatham Islands AWS, NZmonthly high max22.6 C (72.7 F)0.3 C (0.5 F)4 years17 of 100 (Routine)
19 December 2005Chatham Islands AWS, NZdaily high max22.1 C (71.8 F)1.4 C (2.5 F)47 years25 of 100 (Routine)
19 December 2005Chatham Islands AWS, NZdaily high min15.9 C (60.6 F)0.2 C (0.4 F)4 years6 of 100 (Routine)
17 December 2005Chatham Islands AWS, NZdaily high max20.7 C (69.3 F)0.3 C (0.5 F)4 years7 of 100 (Routine)
13 December 2005Chatham Islands AWS, NZdaily low min5.2 C (41.4 F)0.1 C (0.2 F)23 years11 of 100 (Routine)
10 December 2005Chatham Islands AWS, NZdaily high max20.6 C (69.1 F)0.9 C (1.6 F)26 years16 of 100 (Routine)
10 December 2005Chatham Islands AWS, NZdaily high min14.8 C (58.6 F)0.2 C (0.4 F)15 years9 of 100 (Routine)
21 November 2005Chatham Islands AWS, NZdaily high max18.8 C (65.8 F)0.5 C (0.9 F)27 years15 of 100 (Routine)
21 November 2005Chatham Islands AWS, NZdaily high min13.1 C (55.6 F)0.1 C (0.2 F)32 years14 of 100 (Routine)
20 November 2005Chatham Islands AWS, NZdaily high min13.4 C (56.1 F)0.4 C (0.7 F)0 years6 of 100 (Routine)
15 November 2005Chatham Islands AWS, NZdaily low min3.2 C (37.8 F)0.5 C (0.9 F)40 years18 of 100 (Routine)
29 October 2005Chatham Islands AWS, NZdaily high max17.1 C (62.8 F)0.3 C (0.5 F)0 years6 of 100 (Routine)
28 October 2005Chatham Islands AWS, NZdaily high max16.9 C (62.4 F)0.2 C (0.4 F)16 years10 of 100 (Routine)
29 September 2005Chatham Islands AWS, NZdaily low max8.6 C (47.5 F)0.1 C (0.2 F)39 years16 of 100 (Routine)
21 September 2005Chatham Islands AWS, NZdaily low max9.1 C (48.4 F)0.1 C (0.2 F)28 years13 of 100 (Routine)
20 September 2005Chatham Islands AWS, NZdaily low min (Tie)1.7 C (35.1 F)tie12 years2 of 100 (Routine)
12 September 2005Chatham Islands AWS, NZdaily high max14.8 C (58.6 F)0.3 C (0.5 F)35 years16 of 100 (Routine)
28 July 2005Chatham Islands AWS, NZdaily high min10.8 C (51.4 F)1.4 C (2.5 F)4 years11 of 100 (Routine)
27 July 2005Chatham Islands AWS, NZdaily high min10.3 C (50.5 F)0.9 C (1.6 F)27 years16 of 100 (Routine)

Climate Trend

47 complete years, 1957 to 2005
Annual mean temperature at Chatham Islands AWS as warming stripes, 1957 to 2005 One stripe for each of 47 complete years at Chatham Islands AWS, 1957 to 2005. Blue stripes are years cooler than the station's own mean of 11.5 C (52.7 F); red stripes are warmer. The coolest year was 1972, at 10.4 C (50.7 F), and the warmest was 1999, at 12.2 C (54.0 F). The strongest colour marks a difference of 1.1 C (2.0 F). 1957: 11.8 C, +0.3 C from the station mean1958: 11.2 C, -0.2 C from the station mean1959: 11.0 C, -0.4 C from the station mean1960: 11.4 C, -0.1 C from the station mean1961: 11.1 C, -0.4 C from the station mean1962: 12.2 C, +0.7 C from the station mean1963: 11.0 C, -0.4 C from the station mean1964: 11.3 C, -0.2 C from the station mean1965: 11.2 C, -0.3 C from the station mean1966: 11.0 C, -0.5 C from the station mean1967: 11.1 C, -0.4 C from the station mean1968: 11.6 C, +0.1 C from the station mean1969: 11.1 C, -0.4 C from the station mean1972: 10.4 C, -1.1 C from the station mean1973: 11.1 C, -0.3 C from the station mean1974: 11.7 C, +0.2 C from the station mean1975: 11.3 C, -0.2 C from the station mean1976: 10.6 C, -0.9 C from the station mean1977: 11.3 C, -0.2 C from the station mean1978: 11.8 C, +0.3 C from the station mean1979: 11.9 C, +0.4 C from the station mean1980: 11.3 C, -0.2 C from the station mean1981: 11.7 C, +0.2 C from the station mean1982: 11.1 C, -0.4 C from the station mean1983: 11.0 C, -0.5 C from the station mean1984: 11.8 C, +0.3 C from the station mean1985: 12.0 C, +0.6 C from the station mean1986: 12.1 C, +0.6 C from the station mean1987: 11.8 C, +0.3 C from the station mean1988: 11.9 C, +0.4 C from the station mean1989: 12.1 C, +0.6 C from the station mean1990: 11.9 C, +0.5 C from the station mean1991: 11.7 C, +0.2 C from the station mean1992: 10.5 C, -0.9 C from the station mean1993: 10.7 C, -0.8 C from the station mean1994: 11.1 C, -0.4 C from the station mean1995: 12.1 C, +0.7 C from the station mean1996: 11.7 C, +0.2 C from the station mean1997: 11.1 C, -0.4 C from the station mean1998: 11.8 C, +0.4 C from the station mean1999: 12.2 C, +0.8 C from the station mean2000: 11.9 C, +0.4 C from the station mean2001: 12.0 C, +0.5 C from the station mean2002: 11.6 C, +0.2 C from the station mean2003: 11.8 C, +0.3 C from the station mean2004: 11.5 C, 0.0 C from the station mean2005: 12.0 C, +0.5 C from the station mean19571960196519701975198019851990199520002005
One stripe for each of 47 complete years at Chatham Islands AWS, 1957 to 2005. Blue stripes are years cooler than the station's own mean of 11.5 C (52.7 F); red stripes are warmer. The coolest year was 1972, at 10.4 C (50.7 F), and the warmest was 1999, at 12.2 C (54.0 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Chatham Islands AWS as warming stripes, 1957 to 2005
YearAnnual mean temperatureDifference from the station mean
195711.8 C+0.32 C
195811.2 C-0.24 C
195911.0 C-0.44 C
196011.4 C-0.13 C
196111.1 C-0.43 C
196212.2 C+0.69 C
196311.0 C-0.45 C
196411.3 C-0.18 C
196511.2 C-0.33 C
196611.0 C-0.53 C
196711.1 C-0.42 C
196811.6 C+0.10 C
196911.1 C-0.39 C
197210.4 C-1.10 C
197311.1 C-0.34 C
197411.7 C+0.20 C
197511.3 C-0.17 C
197610.6 C-0.91 C
197711.3 C-0.18 C
197811.8 C+0.31 C
197911.9 C+0.42 C
198011.3 C-0.18 C
198111.7 C+0.24 C
198211.1 C-0.43 C
198311.0 C-0.51 C
198411.8 C+0.27 C
198512.0 C+0.56 C
198612.1 C+0.62 C
198711.8 C+0.30 C
198811.9 C+0.42 C
198912.1 C+0.64 C
199011.9 C+0.46 C
199111.7 C+0.24 C
199210.5 C-0.94 C
199310.7 C-0.76 C
199411.1 C-0.36 C
199512.1 C+0.65 C
199611.7 C+0.22 C
199711.1 C-0.43 C
199811.8 C+0.35 C
199912.2 C+0.75 C
200011.9 C+0.44 C
200112.0 C+0.49 C
200211.6 C+0.15 C
200311.8 C+0.30 C
200411.5 C-0.01 C
200512.0 C+0.49 C

The annual mean temperature here has risen by 0.12 C (0.03 to 0.21) per decade over 1957 to 2005. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Chatham Islands AWS
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.12 C (0.03 to 0.21) per decade0.2 F (0.1 to 0.4) per decade1957 to 200547Rise
Mean daily maximum0.11 C (0.01 to 0.21) per decade0.19 F (0.01 to 0.38) per decade1957 to 200547Rise
Mean daily minimum0.14 C (0.04 to 0.23) per decade0.2 F (0.1 to 0.4) per decade1957 to 200547Rise

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

1956 to 2005
Yearly extremes at Chatham Islands AWS: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)24.8 C (76.6 F)199521.9 C (71.4 F)49
Coldest night (TNn)-2.3 C (27.9 F)19750.9 C (33.6 F)50
Wettest day (Rx1day)67.1 mm (2.6 in)200435.1 mm (1.4 in)12
Wettest five days (Rx5day)78.3 mm (3.1 in)200454.6 mm (2.1 in)11
Longest dry spell (CDD)15 days199414 days12

Hottest day (TXx)

Hottest day (TXx) at Chatham Islands AWS by year The hottest day of the year at Chatham Islands AWS, 1956 to 2005. The record is 24.8 C (76.6 F) in 1995, marked on the chart; the median year is 21.9 C (71.4 F). 182022242619601970198019902000Record: 24.8 C (76.6 F) in 1995
The hottest day of the year at Chatham Islands AWS, 1956 to 2005. The record is 24.8 C (76.6 F) in 1995, marked on the chart; the median year is 21.9 C (71.4 F).
Hottest day (TXx) at Chatham Islands AWS by year
YearHottest day (TXx)
195619.6 C (67.3 F)
195723.2 C (73.8 F)
195821.8 C (71.2 F)
195922.1 C (71.8 F)
196021.4 C (70.5 F)
196121.0 C (69.8 F)
196222.0 C (71.6 F)
196320.9 C (69.6 F)
196421.7 C (71.1 F)
196521.9 C (71.4 F)
196622.3 C (72.1 F)
196721.4 C (70.5 F)
196822.3 C (72.1 F)
196921.1 C (70.0 F)
197022.2 C (72.0 F)
1971n/a
197220.7 C (69.3 F)
197320.8 C (69.4 F)
197422.2 C (72.0 F)
197522.2 C (72.0 F)
197619.8 C (67.6 F)
197720.9 C (69.6 F)
197821.8 C (71.2 F)
197922.0 C (71.6 F)
198022.5 C (72.5 F)
198122.2 C (72.0 F)
198221.0 C (69.8 F)
198319.5 C (67.1 F)
198421.5 C (70.7 F)
198523.5 C (74.3 F)
198623.1 C (73.6 F)
198723.0 C (73.4 F)
198823.8 C (74.8 F)
198923.5 C (74.3 F)
199021.8 C (71.2 F)
199121.7 C (71.1 F)
199221.5 C (70.7 F)
199318.9 C (66.0 F)
199421.2 C (70.2 F)
199524.8 C (76.6 F)
199623.1 C (73.6 F)
199720.7 C (69.3 F)
199822.9 C (73.2 F)
199922.0 C (71.6 F)
200023.1 C (73.6 F)
200121.5 C (70.7 F)
200221.7 C (71.1 F)
200322.4 C (72.3 F)
200422.3 C (72.1 F)
200522.9 C (73.2 F)

Coldest night (TNn)

Coldest night (TNn) at Chatham Islands AWS by year The coldest night of the year at Chatham Islands AWS, 1956 to 2005. The record is -2.3 C (27.9 F) in 1975, marked on the chart; the median year is 0.9 C (33.6 F). -505101519601970198019902000Record: -2.3 C (27.9 F) in 1975
The coldest night of the year at Chatham Islands AWS, 1956 to 2005. The record is -2.3 C (27.9 F) in 1975, marked on the chart; the median year is 0.9 C (33.6 F).
Coldest night (TNn) at Chatham Islands AWS by year
YearColdest night (TNn)
19562.4 C (36.3 F)
19570.6 C (33.1 F)
19580.9 C (33.6 F)
19590.3 C (32.5 F)
1960-0.5 C (31.1 F)
19610.9 C (33.6 F)
19622.1 C (35.8 F)
1963-1.6 C (29.1 F)
19641.8 C (35.2 F)
19650.9 C (33.6 F)
19661.2 C (34.2 F)
1967-0.3 C (31.5 F)
19681.3 C (34.3 F)
19691.0 C (33.8 F)
1970-0.4 C (31.3 F)
197113.9 C (57.0 F)
1972-0.4 C (31.3 F)
19730.8 C (33.4 F)
1974-0.2 C (31.6 F)
1975-2.3 C (27.9 F)
19760.8 C (33.4 F)
19770.8 C (33.4 F)
19781.7 C (35.1 F)
19791.5 C (34.7 F)
19801.3 C (34.3 F)
19811.5 C (34.7 F)
19820.2 C (32.4 F)
19831.3 C (34.3 F)
1984-0.5 C (31.1 F)
19850.4 C (32.7 F)
19861.5 C (34.7 F)
19870.4 C (32.7 F)
19880.9 C (33.6 F)
19892.0 C (35.6 F)
19900.5 C (32.9 F)
19911.5 C (34.7 F)
1992-0.1 C (31.8 F)
19931.0 C (33.8 F)
19940.2 C (32.4 F)
19951.3 C (34.3 F)
19960.6 C (33.1 F)
19970.7 C (33.3 F)
19981.2 C (34.2 F)
19991.4 C (34.5 F)
20001.3 C (34.3 F)
20010.6 C (33.1 F)
20021.4 C (34.5 F)
20030.6 C (33.1 F)
20040.9 C (33.6 F)
20051.2 C (34.2 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Chatham Islands AWS by year The wettest day of the year at Chatham Islands AWS, 1956 to 2005. The record is 67.1 mm (2.6 in) in 2004, marked on the chart; the median year is 35.1 mm (1.4 in). 02040608019601970198019902000Record: 67.1 mm (2.6 in) in 2004
The wettest day of the year at Chatham Islands AWS, 1956 to 2005. The record is 67.1 mm (2.6 in) in 2004, marked on the chart; the median year is 35.1 mm (1.4 in).
Wettest day (Rx1day) at Chatham Islands AWS by year
YearWettest day (Rx1day)
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
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
19930.0 mm (0.00 in)
199447.0 mm (1.9 in)
199526.9 mm (1.1 in)
199642.9 mm (1.7 in)
199745.0 mm (1.8 in)
199832.0 mm (1.3 in)
199922.1 mm (0.9 in)
200030.0 mm (1.2 in)
200127.9 mm (1.1 in)
200238.1 mm (1.5 in)
200340.9 mm (1.6 in)
200467.1 mm (2.6 in)
2005n/a

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chatham Islands AWS by year The wettest five days of the year at Chatham Islands AWS, 1956 to 2005. The record is 78.3 mm (3.1 in) in 2004, marked on the chart; the median year is 54.6 mm (2.1 in). 2040608019601970198019902000Record: 78.3 mm (3.1 in) in 2004
The wettest five days of the year at Chatham Islands AWS, 1956 to 2005. The record is 78.3 mm (3.1 in) in 2004, marked on the chart; the median year is 54.6 mm (2.1 in).
Wettest five days (Rx5day) at Chatham Islands AWS by year
YearWettest five days (Rx5day)
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
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
199466.0 mm (2.6 in)
199551.0 mm (2.0 in)
199659.9 mm (2.4 in)
199753.9 mm (2.1 in)
199843.4 mm (1.7 in)
199937.1 mm (1.5 in)
200051.3 mm (2.0 in)
200154.6 mm (2.1 in)
200254.8 mm (2.2 in)
200364.0 mm (2.5 in)
200478.3 mm (3.1 in)
2005n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Chatham Islands AWS by year The longest dry spell of the year at Chatham Islands AWS, 1956 to 2005. The record is 15 days in 1994, marked on the chart; the median year is 14 days. 05101519601970198019902000Record: 15 days in 1994
The longest dry spell of the year at Chatham Islands AWS, 1956 to 2005. The record is 15 days in 1994, marked on the chart; the median year is 14 days.
Longest dry spell (CDD) at Chatham Islands AWS by year
YearLongest dry spell (CDD)
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
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
19931 day
199415 days
199514 days
199614 days
199710 days
199814 days
199913 days
20008 days
20015 days
20024 days
200315 days
200415 days
2005n/a

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

Download the Data

  • Data for Chatham Islands AWS standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Chatham Islands AWS 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 (2025-12-31).