Daily records
Page built 2026-10-17
Data as of 2025-12-31
Search
Built 2026-10-17 (17 October 2026)

Hamilton Weather Records (USC00413884)

Record envelope, standing records and threshold days for Hamilton (USC00413884), Texas, United States, with 102 years of record.

Key Facts for Hamilton

  • Hamilton (USC00413884) is a weather station in Texas, United States at 31.71 latitude and -98.11 longitude, 348 m (1,143 ft) above sea level.
  • The station reports from 1915 to 2016, 102 years of record.
  • 1,464 records set at Hamilton still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Hamilton tied a daily record high minimum temperature of 23.9 C (75.0 F) on 20 July 2016.

About the Station

  • Location: Texas, United States, 31.71 latitude, -98.11 longitude.
  • Elevation: 348 m (1,143 ft).
  • Period of record: 1915 to 2016, 102 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 Hamilton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hamilton. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Hamilton. 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 Hamilton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan32.8 C (91.0 F)-16.7 C (1.9 F)n/an/a
Feb33.9 C (93.0 F)-14.4 C (6.1 F)n/an/a
Mar34.4 C (93.9 F)-12.2 C (10.0 F)n/an/a
Apr37.8 C (100.0 F)-2.2 C (28.0 F)n/an/a
May39.4 C (102.9 F)2.2 C (36.0 F)n/an/a
Jun41.1 C (106.0 F)8.9 C (48.0 F)n/an/a
Jul41.7 C (107.1 F)13.3 C (55.9 F)n/an/a
Aug42.8 C (109.0 F)11.7 C (53.1 F)n/an/a
Sep42.2 C (108.0 F)3.9 C (39.0 F)n/an/a
Oct36.7 C (98.1 F)-2.2 C (28.0 F)n/an/a
Nov34.4 C (93.9 F)-9.4 C (15.1 F)n/an/a
Dec31.7 C (89.1 F)-19.4 C (-2.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hamilton by the year they were set 1,464 records at Hamilton still stand. 1963 holds the most, with 62. 0204060801962: 331963: 621964: 561965: 491966: 471967: 551968: 361969: 581970: 411971: 251972: 331973: 241974: 421975: 71976: 431977: 281978: 391979: 481980: 451981: 281982: 381983: 431984: 441985: 581986: 281987: 211988: 101989: 521990: 202001: 62002: 242003: 252004: 342005: 332006: 452007: 242011: 302012: 392013: 412014: 282015: 102016: 12196219671972197719821987200220072015
1,464 records at Hamilton still stand. 1963 holds the most, with 62.
Standing records at Hamilton by the year they were set
Year setStanding records
196233
196362
196456
196549
196647
196755
196836
196958
197041
197125
197233
197324
197442
19757
197643
197728
197839
197948
198045
198128
198238
198343
198444
198558
198628
198721
198810
198952
199020
20016
200224
200325
200434
200533
200645
200724
201130
201239
201341
201428
201510
201612

All-Time Record Progression

2 new records
When Hamilton set new all-time records 2 all-time records were set at Hamilton between 26 July 2011 and 2 August 2011. Each dot is a new record. Record high minimum temperature26 July 2011: Record high minimum temperature 27.2 C (81.0 F)2 August 2011: Record high minimum temperature 27.8 C (82.0 F)
2 all-time records were set at Hamilton between 26 July 2011 and 2 August 2011. Each dot is a new record.
When Hamilton set new all-time records
DateKindDetail
2011-07-26Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
2011-08-02Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)

Wettest Day of Each Month

Oct: 208.3 mm (8.2 in)
Record daily precipitation for each month at Hamilton The wettest day on record for each calendar month at Hamilton. The most was 208.3 mm (8.2 in) on 4 October 1959. 0100200300 Jan: 86.4 mm (3.4 in), 31 January 2002 Jan Feb: 65.3 mm (2.6 in), 9 February 1965 Feb Mar: 84.3 mm (3.3 in), 28 March 1989 Mar Apr: 140.5 mm (5.5 in), 16 April 1977 Apr May: 108.7 mm (4.3 in), 7 May 1980 May Jun: 115.6 mm (4.6 in), 16 June 1981 Jun Jul: 107.7 mm (4.2 in), 25 July 1971 Jul Aug: 94.5 mm (3.7 in), 18 August 2004 Aug Sep: 149.4 mm (5.9 in), 17 September 1974 Sep Oct: 208.3 mm (8.2 in), 4 October 1959 Oct Nov: 77.2 mm (3.0 in), 24 November 1952 Nov Dec: 52.1 mm (2.1 in), 11 December 1946 Dec
The wettest day on record for each calendar month at Hamilton. The most was 208.3 mm (8.2 in) on 4 October 1959.
Record daily precipitation for each month at Hamilton
MonthRecord daily precipitation (mm)Date
Jan86.4 mm (3.4 in)31 January 2002
Feb65.3 mm (2.6 in)9 February 1965
Mar84.3 mm (3.3 in)28 March 1989
Apr140.5 mm (5.5 in)16 April 1977
May108.7 mm (4.3 in)7 May 1980
Jun115.6 mm (4.6 in)16 June 1981
Jul107.7 mm (4.2 in)25 July 1971
Aug94.5 mm (3.7 in)18 August 2004
Sep149.4 mm (5.9 in)17 September 1974
Oct208.3 mm (8.2 in)4 October 1959
Nov77.2 mm (3.0 in)24 November 1952
Dec52.1 mm (2.1 in)11 December 1946

Period of Record Coverage

1962 to 2016
Days with data per year at Hamilton 42 years of record at Hamilton, 1962 to 2016. 12 years have data for under 90 percent of days and are left out of rankings: 1962, 1971, 1973, 1974, 1975, 1990, 2001, 2007 and others. 1962: 319 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 364 of 365 days1967: 362 of 365 days1968: 366 of 366 days1969: 361 of 365 days1970: 361 of 365 days1971: 319 of 365 days1972: 362 of 366 days1973: 238 of 365 days1974: 300 of 365 days1975: 87 of 365 days1976: 333 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 364 of 365 days1980: 346 of 366 days1981: 363 of 365 days1982: 363 of 365 days1983: 362 of 365 days1984: 360 of 366 days1985: 346 of 365 days1986: 355 of 365 days1987: 358 of 365 days1988: 335 of 366 days1989: 339 of 365 days1990: 287 of 365 days2001: 61 of 365 days2002: 364 of 365 days2003: 358 of 365 days2004: 362 of 366 days2005: 363 of 365 days2006: 364 of 365 days2007: 218 of 365 days2011: 168 of 365 days2012: 366 of 366 days2013: 363 of 365 days2014: 302 of 365 days2015: 147 of 365 days2016: 124 of 366 days197019801990
42 years of record at Hamilton, 1962 to 2016. 12 years have data for under 90 percent of days and are left out of rankings: 1962, 1971, 1973, 1974, 1975, 1990, 2001, 2007 and others.
Days with data per year at Hamilton
YearDays with dataShare of yearComplete
196231987%No
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966364100%Yes
196736299%Yes
1968366100%Yes
196936199%Yes
197036199%Yes
197131987%No
197236299%Yes
197323865%No
197430082%No
19758724%No
197633391%Yes
1977365100%Yes
1978365100%Yes
1979364100%Yes
198034695%Yes
198136399%Yes
198236399%Yes
198336299%Yes
198436098%Yes
198534695%Yes
198635597%Yes
198735898%Yes
198833592%Yes
198933993%Yes
199028779%No
20016117%No
2002364100%Yes
200335898%Yes
200436299%Yes
200536399%Yes
2006364100%Yes
200721860%No
201116846%No
2012366100%Yes
201336399%Yes
201430283%No
201514740%No
201612434%No

Latest Records

20
Latest records at Hamilton
DateStationRecordValueBeat old record byOld record stoodSignificance
20 July 2016Hamilton, USdaily high min (Tie)23.9 C (75.0 F)tie36 years3 of 100 (Routine)
15 July 2016Hamilton, USdaily high min (Tie)24.4 C (75.9 F)tie47 years4 of 100 (Routine)
7 July 2016Hamilton, USdaily high min (Tie)24.4 C (75.9 F)tie51 years5 of 100 (Routine)
5 July 2016Hamilton, USdaily high min (Tie)24.4 C (75.9 F)tie46 years4 of 100 (Routine)
4 July 2016Hamilton, USdaily high min26.1 C (79.0 F)2.2 C (4.0 F)38 years28 of 100 (Routine)
3 July 2016Hamilton, USdaily high min24.4 C (75.9 F)1.1 C (2.0 F)12 years14 of 100 (Routine)
29 June 2016Hamilton, USdaily rain38.1 mm (1.5 in)16.5 mm (0.6 in)34 years29 of 100 (Routine)
16 June 2016Hamilton, USdaily high min24.4 C (75.9 F)1.1 C (2.0 F)38 years20 of 100 (Routine)
15 June 2016Hamilton, USdaily high min23.9 C (75.0 F)0.6 C (1.1 F)26 years14 of 100 (Routine)
14 June 2016Hamilton, USdaily high min24.4 C (75.9 F)0.5 C (0.9 F)26 years13 of 100 (Routine)
3 June 2016Hamilton, USdaily rain48.5 mm (1.9 in)18.0 mm (0.7 in)43 years32 of 100 (Routine)
3 June 2016Hamilton, USdaily low max21.1 C (70.0 F)2.2 C (4.0 F)37 years22 of 100 (Routine)
27 May 2016Hamilton, USdaily rain63.5 mm (2.5 in)21.8 mm (0.9 in)29 years31 of 100 (Routine)
25 May 2016Hamilton, USdaily high min22.8 C (73.0 F)1.7 C (3.1 F)36 years19 of 100 (Routine)
24 May 2016Hamilton, USdaily high min (Tie)21.7 C (71.1 F)tie27 years3 of 100 (Routine)
20 May 2016Hamilton, USdaily low max21.1 C (70.0 F)1.7 C (3.1 F)35 years19 of 100 (Routine)
19 May 2016Hamilton, USdaily low max16.1 C (61.0 F)6.1 C (11.0 F)14 years24 of 100 (Routine)
26 April 2016Hamilton, USdaily high min20.0 C (68.0 F)1.1 C (2.0 F)53 years22 of 100 (Routine)
19 April 2016Hamilton, USdaily low max19.4 C (66.9 F)0.6 C (1.1 F)40 years18 of 100 (Routine)
28 March 2016Hamilton, USdaily low min-0.6 C (30.9 F)1.2 C (2.2 F)33 years16 of 100 (Routine)

Climate Trend

19 complete years, 1963 to 2013
Annual mean temperature at Hamilton as warming stripes, 1963 to 2013 One stripe for each of 19 complete years at Hamilton, 1963 to 2013. Blue stripes are years cooler than the station's own mean of 17.9 C (64.3 F); red stripes are warmer. The coolest year was 1979, at 16.4 C (61.5 F), and the warmest was 1963, at 19.3 C (66.7 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1963: 19.3 C, +1.3 C from the station mean1965: 18.2 C, +0.3 C from the station mean1966: 17.3 C, -0.6 C from the station mean1967: 18.4 C, +0.5 C from the station mean1968: 16.9 C, -1.0 C from the station mean1969: 17.8 C, -0.1 C from the station mean1970: 17.5 C, -0.4 C from the station mean1972: 17.9 C, 0.0 C from the station mean1977: 18.2 C, +0.2 C from the station mean1978: 17.2 C, -0.8 C from the station mean1979: 16.4 C, -1.5 C from the station mean1981: 17.9 C, 0.0 C from the station mean2002: 17.5 C, -0.4 C from the station mean2003: 17.7 C, -0.2 C from the station mean2004: 18.0 C, 0.0 C from the station mean2005: 18.4 C, +0.5 C from the station mean2006: 19.2 C, +1.3 C from the station mean2012: 19.2 C, +1.3 C from the station mean2013: 17.5 C, -0.4 C from the station mean1963197019751980198519901995200020052010
One stripe for each of 19 complete years at Hamilton, 1963 to 2013. Blue stripes are years cooler than the station's own mean of 17.9 C (64.3 F); red stripes are warmer. The coolest year was 1979, at 16.4 C (61.5 F), and the warmest was 1963, at 19.3 C (66.7 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Hamilton as warming stripes, 1963 to 2013
YearAnnual mean temperatureDifference from the station mean
196319.3 C+1.35 C
196518.2 C+0.32 C
196617.3 C-0.63 C
196718.4 C+0.51 C
196816.9 C-1.03 C
196917.8 C-0.13 C
197017.5 C-0.38 C
197217.9 C+0.01 C
197718.2 C+0.24 C
197817.2 C-0.76 C
197916.4 C-1.51 C
198117.9 C+0.01 C
200217.5 C-0.44 C
200317.7 C-0.18 C
200418.0 C+0.03 C
200518.4 C+0.49 C
200619.2 C+1.27 C
201219.2 C+1.28 C
201317.5 C-0.40 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

1915 to 2016
Yearly extremes at Hamilton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)196439.4 C (102.9 F)42
Coldest night (TNn)-19.4 C (-2.9 F)1989-10.0 C (14.0 F)42
Wettest day (Rx1day)208.3 mm (8.2 in)195973.1 mm (2.9 in)60
Wettest five days (Rx5day)233.7 mm (9.2 in)1959102.3 mm (4.0 in)60
Longest dry spell (CDD)84 days201235 days60

Hottest day (TXx)

Hottest day (TXx) at Hamilton by year The hottest day of the year at Hamilton, 1915 to 2016. The record is 42.8 C (109.0 F) in 1964, marked on the chart; the median year is 39.4 C (102.9 F). 253035404519201940196019802000Record: 42.8 C (109.0 F) in 1964
The hottest day of the year at Hamilton, 1915 to 2016. The record is 42.8 C (109.0 F) in 1964, marked on the chart; the median year is 39.4 C (102.9 F).
Hottest day (TXx) at Hamilton by year
YearHottest day (TXx)
1915n/a
1916n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
196241.7 C (107.1 F)
196339.4 C (102.9 F)
196442.8 C (109.0 F)
196538.9 C (102.0 F)
196639.4 C (102.9 F)
196741.7 C (107.1 F)
196837.2 C (99.0 F)
196941.1 C (106.0 F)
197038.9 C (102.0 F)
197138.9 C (102.0 F)
197239.4 C (102.9 F)
197335.0 C (95.0 F)
197440.6 C (105.1 F)
197529.4 C (84.9 F)
197639.4 C (102.9 F)
197740.0 C (104.0 F)
197841.1 C (106.0 F)
197937.8 C (100.0 F)
198041.1 C (106.0 F)
198138.3 C (100.9 F)
198238.9 C (102.0 F)
198341.1 C (106.0 F)
198442.2 C (108.0 F)
198542.2 C (108.0 F)
198640.0 C (104.0 F)
198738.3 C (100.9 F)
198839.4 C (102.9 F)
198938.3 C (100.9 F)
199038.3 C (100.9 F)
200127.2 C (81.0 F)
200238.3 C (100.9 F)
200340.0 C (104.0 F)
200436.7 C (98.1 F)
200540.0 C (104.0 F)
200639.4 C (102.9 F)
200736.7 C (98.1 F)
201141.1 C (106.0 F)
201240.0 C (104.0 F)
201340.0 C (104.0 F)
201438.3 C (100.9 F)
201532.2 C (90.0 F)
201637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Hamilton by year The coldest night of the year at Hamilton, 1915 to 2016. The record is -19.4 C (-2.9 F) in 1989, marked on the chart; the median year is -10.0 C (14.0 F). -20-15-10-5019201940196019802000Record: -19.4 C (-2.9 F) in 1989
The coldest night of the year at Hamilton, 1915 to 2016. The record is -19.4 C (-2.9 F) in 1989, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Hamilton by year
YearColdest night (TNn)
1915n/a
1916n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962-8.9 C (16.0 F)
1963-14.4 C (6.1 F)
1964-13.9 C (7.0 F)
1965-8.3 C (17.1 F)
1966-12.8 C (9.0 F)
1967-9.4 C (15.1 F)
1968-10.6 C (12.9 F)
1969-8.3 C (17.1 F)
1970-8.9 C (16.0 F)
1971-10.0 C (14.0 F)
1972-10.6 C (12.9 F)
1973-13.9 C (7.0 F)
1974-9.4 C (15.1 F)
1975-10.0 C (14.0 F)
1976-12.8 C (9.0 F)
1977-12.2 C (10.0 F)
1978-10.0 C (14.0 F)
1979-16.7 C (1.9 F)
1980-12.2 C (10.0 F)
1981-13.3 C (8.1 F)
1982-16.1 C (3.0 F)
1983-17.2 C (1.0 F)
1984-12.2 C (10.0 F)
1985-14.4 C (6.1 F)
1986-6.7 C (19.9 F)
1987-6.7 C (19.9 F)
1988-10.0 C (14.0 F)
1989-19.4 C (-2.9 F)
1990-3.9 C (25.0 F)
2001-3.9 C (25.0 F)
2002-8.9 C (16.0 F)
2003-8.3 C (17.1 F)
2004-8.9 C (16.0 F)
2005-11.7 C (10.9 F)
2006-6.7 C (19.9 F)
2007-9.4 C (15.1 F)
2011-5.6 C (21.9 F)
2012-7.2 C (19.0 F)
2013-8.3 C (17.1 F)
2014-11.1 C (12.0 F)
2015-8.3 C (17.1 F)
2016-1.1 C (30.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hamilton by year The wettest day of the year at Hamilton, 1915 to 2016. The record is 208.3 mm (8.2 in) in 1959, marked on the chart; the median year is 73.1 mm (2.9 in). 05010015020025019201940196019802000Record: 208.3 mm (8.2 in) in 1959
The wettest day of the year at Hamilton, 1915 to 2016. The record is 208.3 mm (8.2 in) in 1959, marked on the chart; the median year is 73.1 mm (2.9 in).
Wettest day (Rx1day) at Hamilton by year
YearWettest day (Rx1day)
191562.7 mm (2.5 in)
1916104.6 mm (4.1 in)
194652.1 mm (2.1 in)
194752.1 mm (2.1 in)
194873.7 mm (2.9 in)
194974.2 mm (2.9 in)
195062.0 mm (2.4 in)
195161.0 mm (2.4 in)
195277.2 mm (3.0 in)
195359.7 mm (2.4 in)
195439.9 mm (1.6 in)
195586.4 mm (3.4 in)
195643.7 mm (1.7 in)
1957147.3 mm (5.8 in)
195853.3 mm (2.1 in)
1959208.3 mm (8.2 in)
196061.7 mm (2.4 in)
196174.9 mm (2.9 in)
196247.5 mm (1.9 in)
196351.3 mm (2.0 in)
196476.2 mm (3.0 in)
196565.3 mm (2.6 in)
196650.8 mm (2.0 in)
196780.8 mm (3.2 in)
196862.0 mm (2.4 in)
1969101.6 mm (4.0 in)
1970113.8 mm (4.5 in)
1971107.7 mm (4.2 in)
197253.1 mm (2.1 in)
197338.1 mm (1.5 in)
1974149.4 mm (5.9 in)
197543.4 mm (1.7 in)
197647.2 mm (1.9 in)
1977140.5 mm (5.5 in)
197875.7 mm (3.0 in)
197949.5 mm (1.9 in)
1980108.7 mm (4.3 in)
1981115.6 mm (4.6 in)
198281.3 mm (3.2 in)
198355.9 mm (2.2 in)
198453.1 mm (2.1 in)
198588.9 mm (3.5 in)
1986103.4 mm (4.1 in)
198772.4 mm (2.9 in)
1988121.9 mm (4.8 in)
198984.3 mm (3.3 in)
199081.3 mm (3.2 in)
200165.0 mm (2.6 in)
200286.4 mm (3.4 in)
200386.9 mm (3.4 in)
200494.5 mm (3.7 in)
200557.9 mm (2.3 in)
200672.4 mm (2.9 in)
200750.3 mm (2.0 in)
2011105.2 mm (4.1 in)
201278.7 mm (3.1 in)
201392.7 mm (3.6 in)
201458.4 mm (2.3 in)
201563.5 mm (2.5 in)
201663.5 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hamilton by year The wettest five days of the year at Hamilton, 1915 to 2016. The record is 233.7 mm (9.2 in) in 1959, marked on the chart; the median year is 102.3 mm (4.0 in). 05010015020025019201940196019802000Record: 233.7 mm (9.2 in) in 1959
The wettest five days of the year at Hamilton, 1915 to 2016. The record is 233.7 mm (9.2 in) in 1959, marked on the chart; the median year is 102.3 mm (4.0 in).
Wettest five days (Rx5day) at Hamilton by year
YearWettest five days (Rx5day)
191572.9 mm (2.9 in)
1916121.2 mm (4.8 in)
194665.5 mm (2.6 in)
194759.2 mm (2.3 in)
194873.7 mm (2.9 in)
1949101.6 mm (4.0 in)
1950108.0 mm (4.3 in)
195166.1 mm (2.6 in)
1952112.8 mm (4.4 in)
195391.9 mm (3.6 in)
195452.1 mm (2.1 in)
1955105.7 mm (4.2 in)
195687.9 mm (3.5 in)
1957175.7 mm (6.9 in)
195897.0 mm (3.8 in)
1959233.7 mm (9.2 in)
1960107.6 mm (4.2 in)
1961132.4 mm (5.2 in)
196268.8 mm (2.7 in)
196356.9 mm (2.2 in)
1964111.2 mm (4.4 in)
1965162.5 mm (6.4 in)
1966103.0 mm (4.1 in)
196787.1 mm (3.4 in)
1968159.5 mm (6.3 in)
1969101.6 mm (4.0 in)
1970140.8 mm (5.5 in)
1971232.6 mm (9.2 in)
197261.7 mm (2.4 in)
197376.3 mm (3.0 in)
1974177.6 mm (7.0 in)
197568.6 mm (2.7 in)
197648.5 mm (1.9 in)
1977183.4 mm (7.2 in)
197877.2 mm (3.0 in)
1979149.1 mm (5.9 in)
1980167.6 mm (6.6 in)
1981121.0 mm (4.8 in)
198281.8 mm (3.2 in)
198364.1 mm (2.5 in)
198477.7 mm (3.1 in)
1985117.6 mm (4.6 in)
1986164.4 mm (6.5 in)
1987121.8 mm (4.8 in)
1988161.2 mm (6.3 in)
198990.7 mm (3.6 in)
199091.0 mm (3.6 in)
200185.8 mm (3.4 in)
200295.4 mm (3.8 in)
2003144.3 mm (5.7 in)
2004169.6 mm (6.7 in)
2005113.2 mm (4.5 in)
200698.8 mm (3.9 in)
2007131.6 mm (5.2 in)
2011105.2 mm (4.1 in)
201284.5 mm (3.3 in)
2013116.5 mm (4.6 in)
201477.5 mm (3.1 in)
2015141.1 mm (5.6 in)
201698.1 mm (3.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hamilton by year The longest dry spell of the year at Hamilton, 1915 to 2016. The record is 84 days in 2012, marked on the chart; the median year is 35 days. 02040608010019201940196019802000Record: 84 days in 2012
The longest dry spell of the year at Hamilton, 1915 to 2016. The record is 84 days in 2012, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Hamilton by year
YearLongest dry spell (CDD)
191523 days
191638 days
194621 days
194735 days
194834 days
194925 days
195044 days
195130 days
195250 days
195342 days
195452 days
195557 days
195664 days
195741 days
195828 days
195932 days
196030 days
196124 days
196235 days
196350 days
196459 days
196539 days
196655 days
196730 days
196830 days
196946 days
197063 days
197136 days
197262 days
197327 days
197429 days
197518 days
197643 days
197745 days
197838 days
197932 days
198042 days
198121 days
198259 days
198328 days
198423 days
198521 days
198633 days
198741 days
198830 days
198943 days
199048 days
200114 days
200227 days
200327 days
200420 days
200536 days
200641 days
200737 days
201130 days
201284 days
201335 days
201434 days
201518 days
201625 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

45 years, 1916 to 2013

A day with at least 71.5 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 196.7 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Hamilton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years71.5 mm (2.8 in)
5 years97.5 mm (3.8 in)
10 years117.4 mm (4.6 in)
25 years146.0 mm (5.7 in)
50 years170.1 mm (6.7 in)Longer than the 45 years of record
100 years196.7 mm (7.7 in)Longer than the 45 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, 45 years of values from 1916 to 2013.

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: 208.3 mm (8.2 in) in 1959; 147.3 mm (5.8 in) in 1957; 140.5 mm (5.5 in) in 1977.

Download the Data

  • Data for Hamilton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Hamilton 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).