Built 2026-10-16 (16 October 2026)

Carlsbad Weather Records (USC00291469)

Record envelope, standing records and threshold days for Carlsbad (USC00291469), New Mexico, United States, with 122 years of record.

Key Facts for Carlsbad

  • Carlsbad (USC00291469) is a weather station in New Mexico, United States at 32.35 latitude and -104.22 longitude, 951 m (3,120 ft) above sea level.
  • The station reports from 1900 to 2021, 122 years of record.
  • 1,464 records set at Carlsbad still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Carlsbad tied a daily record snow depth of 7.6 cm (3.0 in) on 10 January 2021.

About the Station

  • Location: New Mexico, United States, 32.35 latitude, -104.22 longitude.
  • Elevation: 951 m (3,120 ft).
  • Period of record: 1900 to 2021, 122 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 Carlsbad, with 2026 drawn through them The band shows the record high and record low for each calendar day at Carlsbad. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Carlsbad. 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 Carlsbad, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.1 C (88.0 F)-26.7 C (-16.1 F)n/an/a
Feb37.8 C (100.0 F)-25.0 C (-13.0 F)n/an/a
Mar36.7 C (98.1 F)-13.3 C (8.1 F)n/an/a
Apr38.3 C (100.9 F)-5.0 C (23.0 F)n/an/a
May42.8 C (109.0 F)-0.6 C (30.9 F)n/an/a
Jun45.6 C (114.1 F)5.6 C (42.1 F)n/an/a
Jul44.4 C (111.9 F)10.0 C (50.0 F)n/an/a
Aug43.9 C (111.0 F)8.9 C (48.0 F)n/an/a
Sep41.1 C (106.0 F)-1.7 C (28.9 F)n/an/a
Oct38.3 C (100.9 F)-6.1 C (21.0 F)n/an/a
Nov36.1 C (97.0 F)-18.3 C (-0.9 F)n/an/a
Dec30.0 C (86.0 F)-20.0 C (-4.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Carlsbad by the year they were set 1,464 records at Carlsbad still stand. 1902 holds the most, with 38. 0102030401901: 101902: 381903: 381904: 221905: 181906: 261907: 221908: 201909: 221910: 241911: 301912: 171913: 111914: 61915: 171916: 211917: 131918: 201919: 51920: 101921: 101922: 141923: 141924: 141925: 171926: 111927: 111928: 211929: 51930: 211931: 81932: 81933: 341934: 311935: 91936: 171937: 81938: 121939: 91940: 101941: 21942: 121943: 101944: 51945: 91946: 51947: 101948: 281949: 141950: 141951: 181952: 91953: 101954: 61955: 91956: 71957: 71958: 61959: 91960: 101961: 121962: 81963: 181964: 81965: 81966: 171967: 61968: 81969: 61970: 51971: 111972: 121973: 41974: 81975: 131976: 151977: 121978: 111979: 91980: 121981: 71982: 71983: 81984: 91985: 41986: 91987: 31988: 61989: 181990: 121991: 101992: 41993: 121994: 71995: 71996: 161997: 121998: 81999: 12000: 172001: 22002: 82003: 52004: 102005: 82006: 72007: 102008: 72009: 82010: 52011: 212012: 72013: 152014: 92015: 62016: 132017: 132018: 122019: 202020: 241901191319251937194919611973198519972009
1,464 records at Carlsbad still stand. 1902 holds the most, with 38.
Standing records at Carlsbad by the year they were set
Year setStanding records
190110
190238
190338
190422
190518
190626
190722
190820
190922
191024
191130
191217
191311
19146
191517
191621
191713
191820
19195
192010
192110
192214
192314
192414
192517
192611
192711
192821
19295
193021
19318
19328
193334
193431
19359
193617
19378
193812
19399
194010
19412
194212
194310
19445
19459
19465
194710
194828
194914
195014
195118
19529
195310
19546
19559
19567
19577
19586
19599
196010
196112
19628
196318
19648
19658
196617
19676
19688
19696
19705
197111
197212
19734
19748
197513
197615
197712
197811
19799
198012
19817
19827
19838
19849
19854
19869
19873
19886
198918
199012
199110
19924
199312
19947
19957
199616
199712
19988
19991
200017
20012
20028
20035
200410
20058
20067
200710
20087
20098
20105
201121
20127
201315
20149
20156
201613
201713
201812
201920
202024

All-Time Record Progression

8 new records
When Carlsbad set new all-time records 8 all-time records were set at Carlsbad between 8 February 1933 and 25 December 2011. Each dot is a new record. Record low maximum temperatureRecord low minimum temperatureRecord high maximum temperatureRecord snow depth8 February 1933: Record low maximum temperature -6.7 C (19.9 F)9 February 1933: Record low minimum temperature -25.0 C (-13.0 F)30 January 1949: Record low maximum temperature -7.2 C (19.0 F)11 January 1962: Record low maximum temperature -7.8 C (18.0 F)11 January 1962: Record low minimum temperature -26.7 C (-16.1 F)13 January 1963: Record low maximum temperature -11.1 C (12.0 F)28 June 1994: Record high maximum temperature 45.6 C (114.1 F)25 December 2011: Record snow depth 30.5 cm (12.0 in)19401950196019701980199020002010
8 all-time records were set at Carlsbad between 8 February 1933 and 25 December 2011. Each dot is a new record.
When Carlsbad set new all-time records
DateKindDetail
1933-02-08Record low maximum temperatureRecord low maximum temperature -6.7 C (19.9 F)
1933-02-09Record low minimum temperatureRecord low minimum temperature -25.0 C (-13.0 F)
1949-01-30Record low maximum temperatureRecord low maximum temperature -7.2 C (19.0 F)
1962-01-11Record low maximum temperatureRecord low maximum temperature -7.8 C (18.0 F)
1962-01-11Record low minimum temperatureRecord low minimum temperature -26.7 C (-16.1 F)
1963-01-13Record low maximum temperatureRecord low maximum temperature -11.1 C (12.0 F)
1994-06-28Record high maximum temperatureRecord high maximum temperature 45.6 C (114.1 F)
2011-12-25Record snow depthRecord snow depth 30.5 cm (12.0 in)

Wettest Day of Each Month

Aug: 130.0 mm (5.1 in)
Record daily precipitation for each month at Carlsbad The wettest day on record for each calendar month at Carlsbad. The most was 130.0 mm (5.1 in) on 8 August 1916. 050100150 Jan: 20.1 mm (0.8 in), 22 January 1980 Jan Feb: 31.8 mm (1.3 in), 12 February 1997 Feb Mar: 61.2 mm (2.4 in), 21 March 1919 Mar Apr: 72.6 mm (2.9 in), 4 April 2004 Apr May: 86.6 mm (3.4 in), 8 May 1959 May Jun: 96.5 mm (3.8 in), 12 June 1972 Jun Jul: 96.5 mm (3.8 in), 10 July 1902 Jul Aug: 130.0 mm (5.1 in), 8 August 1916 Aug Sep: 116.8 mm (4.6 in), 26 September 1980 Sep Oct: 109.2 mm (4.3 in), 9 October 1945 Oct Nov: 50.8 mm (2.0 in), 3 November 2000 Nov Dec: 50.8 mm (2.0 in), 28 December 2014 Dec
The wettest day on record for each calendar month at Carlsbad. The most was 130.0 mm (5.1 in) on 8 August 1916.
Record daily precipitation for each month at Carlsbad
MonthRecord daily precipitation (mm)Date
Jan20.1 mm (0.8 in)22 January 1980
Feb31.8 mm (1.3 in)12 February 1997
Mar61.2 mm (2.4 in)21 March 1919
Apr72.6 mm (2.9 in)4 April 2004
May86.6 mm (3.4 in)8 May 1959
Jun96.5 mm (3.8 in)12 June 1972
Jul96.5 mm (3.8 in)10 July 1902
Aug130.0 mm (5.1 in)8 August 1916
Sep116.8 mm (4.6 in)26 September 1980
Oct109.2 mm (4.3 in)9 October 1945
Nov50.8 mm (2.0 in)3 November 2000
Dec50.8 mm (2.0 in)28 December 2014

Period of Record Coverage

1900 to 2021
Days with data per year at Carlsbad 122 years of record at Carlsbad, 1900 to 2021. 24 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1904, 1949, 1950, 1954, 1955, 1956 and others. 1900: 59 of 365 days1901: 195 of 365 days1902: 360 of 365 days1903: 353 of 365 days1904: 308 of 366 days1905: 349 of 365 days1906: 332 of 365 days1907: 365 of 365 days1908: 354 of 366 days1909: 353 of 365 days1910: 359 of 365 days1911: 359 of 365 days1912: 364 of 366 days1913: 363 of 365 days1914: 365 of 365 days1915: 359 of 365 days1916: 342 of 366 days1917: 351 of 365 days1918: 353 of 365 days1919: 362 of 365 days1920: 346 of 366 days1921: 344 of 365 days1922: 347 of 365 days1923: 339 of 365 days1924: 349 of 366 days1925: 361 of 365 days1926: 346 of 365 days1927: 331 of 365 days1928: 360 of 366 days1929: 331 of 365 days1930: 363 of 365 days1931: 359 of 365 days1932: 361 of 366 days1933: 363 of 365 days1934: 364 of 365 days1935: 364 of 365 days1936: 362 of 366 days1937: 362 of 365 days1938: 362 of 365 days1939: 361 of 365 days1940: 355 of 366 days1941: 364 of 365 days1942: 362 of 365 days1943: 357 of 365 days1944: 365 of 366 days1945: 350 of 365 days1946: 353 of 365 days1947: 357 of 365 days1948: 366 of 366 days1949: 322 of 365 days1950: 278 of 365 days1951: 360 of 365 days1952: 357 of 366 days1953: 339 of 365 days1954: 327 of 365 days1955: 241 of 365 days1956: 327 of 366 days1957: 365 of 365 days1958: 358 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 363 of 365 days1963: 365 of 365 days1964: 336 of 366 days1965: 364 of 365 days1966: 359 of 365 days1967: 307 of 365 days1968: 335 of 366 days1969: 344 of 365 days1970: 327 of 365 days1971: 332 of 365 days1972: 329 of 366 days1973: 239 of 365 days1974: 303 of 365 days1975: 265 of 365 days1976: 327 of 366 days1977: 296 of 365 days1978: 309 of 365 days1979: 350 of 365 days1980: 359 of 366 days1981: 290 of 365 days1982: 296 of 365 days1983: 337 of 365 days1984: 330 of 366 days1985: 321 of 365 days1986: 314 of 365 days1987: 347 of 365 days1988: 310 of 366 days1989: 359 of 365 days1990: 361 of 365 days1991: 363 of 365 days1992: 364 of 366 days1993: 357 of 365 days1994: 364 of 365 days1995: 362 of 365 days1996: 361 of 366 days1997: 362 of 365 days1998: 365 of 365 days1999: 363 of 365 days2000: 366 of 366 days2001: 359 of 365 days2002: 365 of 365 days2003: 364 of 365 days2004: 335 of 366 days2005: 365 of 365 days2006: 302 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 335 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 364 of 365 days2014: 360 of 365 days2015: 336 of 365 days2016: 361 of 366 days2017: 352 of 365 days2018: 351 of 365 days2019: 354 of 365 days2020: 346 of 366 days2021: 27 of 365 days1900192019401960198020002020
122 years of record at Carlsbad, 1900 to 2021. 24 years have data for under 90 percent of days and are left out of rankings: 1900, 1901, 1904, 1949, 1950, 1954, 1955, 1956 and others.
Days with data per year at Carlsbad
YearDays with dataShare of yearComplete
19005916%No
190119553%No
190236099%Yes
190335397%Yes
190430884%No
190534996%Yes
190633291%Yes
1907365100%Yes
190835497%Yes
190935397%Yes
191035998%Yes
191135998%Yes
191236499%Yes
191336399%Yes
1914365100%Yes
191535998%Yes
191634293%Yes
191735196%Yes
191835397%Yes
191936299%Yes
192034695%Yes
192134494%Yes
192234795%Yes
192333993%Yes
192434995%Yes
192536199%Yes
192634695%Yes
192733191%Yes
192836098%Yes
192933191%Yes
193036399%Yes
193135998%Yes
193236199%Yes
193336399%Yes
1934364100%Yes
1935364100%Yes
193636299%Yes
193736299%Yes
193836299%Yes
193936199%Yes
194035597%Yes
1941364100%Yes
194236299%Yes
194335798%Yes
1944365100%Yes
194535096%Yes
194635397%Yes
194735798%Yes
1948366100%Yes
194932288%No
195027876%No
195136099%Yes
195235798%Yes
195333993%Yes
195432790%No
195524166%No
195632789%No
1957365100%Yes
195835898%Yes
1959364100%Yes
1960366100%Yes
1961365100%Yes
196236399%Yes
1963365100%Yes
196433692%Yes
1965364100%Yes
196635998%Yes
196730784%No
196833592%Yes
196934494%Yes
197032790%No
197133291%Yes
197232990%No
197323965%No
197430383%No
197526573%No
197632789%No
197729681%No
197830985%No
197935096%Yes
198035998%Yes
198129079%No
198229681%No
198333792%Yes
198433090%Yes
198532188%No
198631486%No
198734795%Yes
198831085%No
198935998%Yes
199036199%Yes
199136399%Yes
199236499%Yes
199335798%Yes
1994364100%Yes
199536299%Yes
199636199%Yes
199736299%Yes
1998365100%Yes
199936399%Yes
2000366100%Yes
200135998%Yes
2002365100%Yes
2003364100%Yes
200433592%Yes
2005365100%Yes
200630283%No
2007365100%Yes
2008366100%Yes
200933592%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013364100%Yes
201436099%Yes
201533692%Yes
201636199%Yes
201735296%Yes
201835196%Yes
201935497%Yes
202034695%Yes
2021277%No

Latest Records

20
Latest records at Carlsbad
DateStationRecordValueBeat old record byOld record stoodSignificance
10 January 2021Carlsbad, USdaily snow depth (Tie)7.6 cm (3.0 in)tie59 years6 of 100 (Routine)
27 October 2020Carlsbad, USmonthly low max (Tie)3.3 C (37.9 F)tie28 years7 of 100 (Routine)
28 September 2020Carlsbad, USdaily high max39.4 C (102.9 F)1.1 C (2.0 F)43 years24 of 100 (Routine)
11 September 2020Carlsbad, USdaily low max15.6 C (60.1 F)6.1 C (11.0 F)40 years35 of 100 (Notable)
10 September 2020Carlsbad, USdaily low min6.7 C (44.1 F)2.2 C (4.0 F)91 years43 of 100 (Notable)
10 September 2020Carlsbad, USdaily low max11.1 C (52.0 F)6.1 C (11.0 F)44 years36 of 100 (Notable)
9 September 2020Carlsbad, USdaily low min7.8 C (46.0 F)1.1 C (2.0 F)67 years33 of 100 (Routine)
1 September 2020Carlsbad, USmonthly high min26.7 C (80.1 F)1.1 C (2.0 F)83 years48 of 100 (Notable)
31 August 2020Carlsbad, USdaily high min23.3 C (73.9 F)1.6 C (2.9 F)9 years19 of 100 (Routine)
30 August 2020Carlsbad, USdaily high min23.3 C (73.9 F)1.6 C (2.9 F)110 years47 of 100 (Notable)
30 August 2020Carlsbad, USdaily high max39.4 C (102.9 F)0.5 C (0.9 F)86 years36 of 100 (Notable)
29 August 2020Carlsbad, USdaily high max40.0 C (104.0 F)0.6 C (1.1 F)2 years11 of 100 (Routine)
15 August 2020Carlsbad, USdaily high max41.7 C (107.1 F)0.6 C (1.1 F)5 years12 of 100 (Routine)
14 August 2020Carlsbad, USdaily high max41.7 C (107.1 F)0.6 C (1.1 F)76 years33 of 100 (Routine)
14 August 2020Carlsbad, USdaily high min (Tie)23.3 C (73.9 F)tie114 years10 of 100 (Routine)
13 August 2020Carlsbad, USdaily high max (Tie)41.7 C (107.1 F)tie8 years3 of 100 (Routine)
31 July 2020Carlsbad, USdaily high max (Tie)41.7 C (107.1 F)tie63 years7 of 100 (Routine)
30 July 2020Carlsbad, USdaily high min24.4 C (75.9 F)1.1 C (2.0 F)38 years26 of 100 (Routine)
21 July 2020Carlsbad, USdaily high min (Tie)23.9 C (75.0 F)tie86 years8 of 100 (Routine)
18 July 2020Carlsbad, USdaily high min (Tie)23.9 C (75.0 F)tie1 year2 of 100 (Routine)

Climate Trend

85 complete years, 1902 to 2020
Annual mean temperature at Carlsbad as warming stripes, 1902 to 2020 One stripe for each of 85 complete years at Carlsbad, 1902 to 2020. Blue stripes are years cooler than the station's own mean of 17.3 C (63.1 F); red stripes are warmer. The coolest year was 1960, at 15.7 C (60.2 F), and the warmest was 1934, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1902: 18.3 C, +1.1 C from the station mean1903: 17.5 C, +0.3 C from the station mean1905: 16.4 C, -0.9 C from the station mean1907: 17.4 C, +0.1 C from the station mean1908: 17.0 C, -0.3 C from the station mean1909: 17.6 C, +0.4 C from the station mean1910: 18.5 C, +1.2 C from the station mean1911: 17.9 C, +0.6 C from the station mean1912: 16.1 C, -1.1 C from the station mean1913: 16.6 C, -0.7 C from the station mean1914: 17.4 C, +0.1 C from the station mean1915: 16.8 C, -0.5 C from the station mean1918: 15.9 C, -1.4 C from the station mean1919: 15.9 C, -1.4 C from the station mean1923: 16.4 C, -0.8 C from the station mean1924: 16.3 C, -0.9 C from the station mean1925: 17.4 C, +0.1 C from the station mean1928: 17.4 C, +0.2 C from the station mean1930: 17.6 C, +0.3 C from the station mean1932: 16.5 C, -0.7 C from the station mean1933: 18.5 C, +1.2 C from the station mean1934: 19.1 C, +1.8 C from the station mean1935: 18.3 C, +1.0 C from the station mean1936: 17.7 C, +0.4 C from the station mean1937: 17.3 C, 0.0 C from the station mean1938: 18.5 C, +1.2 C from the station mean1939: 17.8 C, +0.5 C from the station mean1940: 16.9 C, -0.4 C from the station mean1941: 17.4 C, +0.1 C from the station mean1942: 17.5 C, +0.3 C from the station mean1943: 17.6 C, +0.4 C from the station mean1944: 16.9 C, -0.3 C from the station mean1945: 18.0 C, +0.7 C from the station mean1946: 18.0 C, +0.8 C from the station mean1947: 17.4 C, +0.1 C from the station mean1948: 17.8 C, +0.5 C from the station mean1951: 17.1 C, -0.2 C from the station mean1952: 16.6 C, -0.7 C from the station mean1953: 16.9 C, -0.4 C from the station mean1957: 16.8 C, -0.4 C from the station mean1958: 16.1 C, -1.1 C from the station mean1959: 16.2 C, -1.0 C from the station mean1960: 15.7 C, -1.6 C from the station mean1961: 16.2 C, -1.1 C from the station mean1962: 17.4 C, +0.2 C from the station mean1963: 17.1 C, -0.1 C from the station mean1965: 17.0 C, -0.2 C from the station mean1966: 16.3 C, -1.0 C from the station mean1969: 17.2 C, 0.0 C from the station mean1970: 16.3 C, -1.0 C from the station mean1971: 16.8 C, -0.5 C from the station mean1976: 15.7 C, -1.5 C from the station mean1979: 16.2 C, -1.1 C from the station mean1980: 17.1 C, -0.1 C from the station mean1981: 17.3 C, 0.0 C from the station mean1982: 17.5 C, +0.2 C from the station mean1983: 17.1 C, -0.2 C from the station mean1987: 16.5 C, -0.7 C from the station mean1989: 17.3 C, +0.1 C from the station mean1990: 17.6 C, +0.3 C from the station mean1991: 17.1 C, -0.2 C from the station mean1992: 17.0 C, -0.3 C from the station mean1993: 17.3 C, +0.1 C from the station mean1994: 18.1 C, +0.8 C from the station mean1995: 17.8 C, +0.5 C from the station mean1996: 18.0 C, +0.8 C from the station mean1997: 16.8 C, -0.4 C from the station mean1998: 18.2 C, +1.0 C from the station mean1999: 18.5 C, +1.3 C from the station mean2000: 18.3 C, +1.0 C from the station mean2001: 17.6 C, +0.3 C from the station mean2002: 17.1 C, -0.2 C from the station mean2003: 17.5 C, +0.2 C from the station mean2005: 17.2 C, -0.1 C from the station mean2007: 16.9 C, -0.4 C from the station mean2008: 17.0 C, -0.2 C from the station mean2010: 17.1 C, -0.1 C from the station mean2011: 17.8 C, +0.6 C from the station mean2012: 18.1 C, +0.8 C from the station mean2013: 16.7 C, -0.5 C from the station mean2014: 16.9 C, -0.4 C from the station mean2016: 17.8 C, +0.5 C from the station mean2017: 18.2 C, +0.9 C from the station mean2019: 18.2 C, +0.9 C from the station mean2020: 18.7 C, +1.5 C from the station mean1902191019201930194019501960197019801990200020102020
One stripe for each of 85 complete years at Carlsbad, 1902 to 2020. Blue stripes are years cooler than the station's own mean of 17.3 C (63.1 F); red stripes are warmer. The coolest year was 1960, at 15.7 C (60.2 F), and the warmest was 1934, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Carlsbad as warming stripes, 1902 to 2020
YearAnnual mean temperatureDifference from the station mean
190218.3 C+1.06 C
190317.5 C+0.28 C
190516.4 C-0.91 C
190717.4 C+0.09 C
190817.0 C-0.29 C
190917.6 C+0.37 C
191018.5 C+1.20 C
191117.9 C+0.59 C
191216.1 C-1.14 C
191316.6 C-0.68 C
191417.4 C+0.12 C
191516.8 C-0.49 C
191815.9 C-1.39 C
191915.9 C-1.37 C
192316.4 C-0.82 C
192416.3 C-0.95 C
192517.4 C+0.09 C
192817.4 C+0.16 C
193017.6 C+0.34 C
193216.5 C-0.73 C
193318.5 C+1.19 C
193419.1 C+1.81 C
193518.3 C+1.02 C
193617.7 C+0.43 C
193717.3 C+0.00 C
193818.5 C+1.19 C
193917.8 C+0.53 C
194016.9 C-0.40 C
194117.4 C+0.10 C
194217.5 C+0.28 C
194317.6 C+0.37 C
194416.9 C-0.33 C
194518.0 C+0.69 C
194618.0 C+0.76 C
194717.4 C+0.11 C
194817.8 C+0.54 C
195117.1 C-0.20 C
195216.6 C-0.69 C
195316.9 C-0.39 C
195716.8 C-0.45 C
195816.1 C-1.12 C
195916.2 C-1.04 C
196015.7 C-1.58 C
196116.2 C-1.10 C
196217.4 C+0.16 C
196317.1 C-0.13 C
196517.0 C-0.22 C
196616.3 C-0.96 C
196917.2 C-0.04 C
197016.3 C-0.96 C
197116.8 C-0.47 C
197615.7 C-1.54 C
197916.2 C-1.09 C
198017.1 C-0.13 C
198117.3 C+0.03 C
198217.5 C+0.24 C
198317.1 C-0.16 C
198716.5 C-0.73 C
198917.3 C+0.05 C
199017.6 C+0.33 C
199117.1 C-0.19 C
199217.0 C-0.30 C
199317.3 C+0.06 C
199418.1 C+0.82 C
199517.8 C+0.54 C
199618.0 C+0.78 C
199716.8 C-0.44 C
199818.2 C+0.97 C
199918.5 C+1.25 C
200018.3 C+1.03 C
200117.6 C+0.31 C
200217.1 C-0.16 C
200317.5 C+0.19 C
200517.2 C-0.09 C
200716.9 C-0.41 C
200817.0 C-0.24 C
201017.1 C-0.15 C
201117.8 C+0.55 C
201218.1 C+0.81 C
201316.7 C-0.52 C
201416.9 C-0.37 C
201617.8 C+0.54 C
201718.2 C+0.91 C
201918.2 C+0.89 C
202018.7 C+1.45 C

The fitted trend in annual mean temperature here over 1902 to 2020 is 0.03 C (-0.02 to 0.08) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.03 to 0.14) per decade. The slope is a straight line fitted to 85 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Carlsbad
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.03 C (-0.02 to 0.08) per decade0.05 F (-0.03 to 0.14) per decade1902 to 202085Not clearly different from zero
Mean daily maximum-0.06 C (-0.12 to 0.01) per decade-0.10 F (-0.22 to 0.02) per decade1902 to 202085Not clearly different from zero
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.2 F (0.1 to 0.3) per decade1902 to 202085Rise

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

1900 to 2021
Yearly extremes at Carlsbad: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.6 C (114.1 F)199441.7 C (107.1 F)122
Coldest night (TNn)-26.7 C (-16.1 F)1962-12.2 C (10.0 F)122
Wettest day (Rx1day)130.0 mm (5.1 in)191645.1 mm (1.8 in)122
Wettest five days (Rx5day)210.4 mm (8.3 in)201466.8 mm (2.6 in)122
Longest dry spell (CDD)160 days201158 days122

Hottest day (TXx)

Hottest day (TXx) at Carlsbad by year The hottest day of the year at Carlsbad, 1900 to 2021. The record is 45.6 C (114.1 F) in 1994, marked on the chart; the median year is 41.7 C (107.1 F). 203040501900192019401960198020002020Record: 45.6 C (114.1 F) in 1994
The hottest day of the year at Carlsbad, 1900 to 2021. The record is 45.6 C (114.1 F) in 1994, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at Carlsbad by year
YearHottest day (TXx)
190030.6 C (87.1 F)
190140.0 C (104.0 F)
190244.4 C (111.9 F)
190340.6 C (105.1 F)
190440.0 C (104.0 F)
190542.8 C (109.0 F)
190642.8 C (109.0 F)
190743.3 C (109.9 F)
190840.6 C (105.1 F)
190943.3 C (109.9 F)
191042.8 C (109.0 F)
191140.6 C (105.1 F)
191239.4 C (102.9 F)
191342.8 C (109.0 F)
191438.9 C (102.0 F)
191542.2 C (108.0 F)
191641.1 C (106.0 F)
191743.3 C (109.9 F)
191842.2 C (108.0 F)
191940.0 C (104.0 F)
192041.1 C (106.0 F)
192143.3 C (109.9 F)
192240.0 C (104.0 F)
192340.6 C (105.1 F)
192443.3 C (109.9 F)
192541.7 C (107.1 F)
192640.0 C (104.0 F)
192741.1 C (106.0 F)
192843.3 C (109.9 F)
192942.2 C (108.0 F)
193042.2 C (108.0 F)
193141.1 C (106.0 F)
193241.7 C (107.1 F)
193343.3 C (109.9 F)
193443.3 C (109.9 F)
193542.8 C (109.0 F)
193642.2 C (108.0 F)
193741.7 C (107.1 F)
193841.7 C (107.1 F)
193943.9 C (111.0 F)
194041.7 C (107.1 F)
194138.9 C (102.0 F)
194243.3 C (109.9 F)
194342.2 C (108.0 F)
194443.3 C (109.9 F)
194542.8 C (109.0 F)
194642.8 C (109.0 F)
194743.3 C (109.9 F)
194842.8 C (109.0 F)
194942.2 C (108.0 F)
195038.3 C (100.9 F)
195141.1 C (106.0 F)
195240.6 C (105.1 F)
195341.7 C (107.1 F)
195440.6 C (105.1 F)
195538.9 C (102.0 F)
195639.4 C (102.9 F)
195741.7 C (107.1 F)
195842.8 C (109.0 F)
195938.9 C (102.0 F)
196042.2 C (108.0 F)
196140.0 C (104.0 F)
196239.4 C (102.9 F)
196340.0 C (104.0 F)
196440.6 C (105.1 F)
196540.0 C (104.0 F)
196640.6 C (105.1 F)
196737.8 C (100.0 F)
196840.6 C (105.1 F)
196941.1 C (106.0 F)
197040.6 C (105.1 F)
197140.6 C (105.1 F)
197240.6 C (105.1 F)
197339.4 C (102.9 F)
197440.0 C (104.0 F)
197540.0 C (104.0 F)
197638.9 C (102.0 F)
197742.2 C (108.0 F)
197843.3 C (109.9 F)
197941.1 C (106.0 F)
198042.8 C (109.0 F)
198142.2 C (108.0 F)
198240.6 C (105.1 F)
198341.7 C (107.1 F)
198438.3 C (100.9 F)
198539.4 C (102.9 F)
198640.0 C (104.0 F)
198740.0 C (104.0 F)
198838.9 C (102.0 F)
198943.3 C (109.9 F)
199042.8 C (109.0 F)
199140.6 C (105.1 F)
199240.6 C (105.1 F)
199340.6 C (105.1 F)
199445.6 C (114.1 F)
199543.9 C (111.0 F)
199643.3 C (109.9 F)
199740.6 C (105.1 F)
199843.9 C (111.0 F)
199942.2 C (108.0 F)
200042.8 C (109.0 F)
200141.1 C (106.0 F)
200241.7 C (107.1 F)
200341.1 C (106.0 F)
200440.6 C (105.1 F)
200542.2 C (108.0 F)
200641.7 C (107.1 F)
200742.2 C (108.0 F)
200842.8 C (109.0 F)
200940.0 C (104.0 F)
201043.9 C (111.0 F)
201143.3 C (109.9 F)
201243.3 C (109.9 F)
201341.1 C (106.0 F)
201442.8 C (109.0 F)
201541.1 C (106.0 F)
201643.3 C (109.9 F)
201741.7 C (107.1 F)
201842.8 C (109.0 F)
201943.9 C (111.0 F)
202044.4 C (111.9 F)
202120.6 C (69.1 F)

Coldest night (TNn)

Coldest night (TNn) at Carlsbad by year The coldest night of the year at Carlsbad, 1900 to 2021. The record is -26.7 C (-16.1 F) in 1962, marked on the chart; the median year is -12.2 C (10.0 F). -30-20-1001900192019401960198020002020Record: -26.7 C (-16.1 F) in 1962
The coldest night of the year at Carlsbad, 1900 to 2021. The record is -26.7 C (-16.1 F) in 1962, marked on the chart; the median year is -12.2 C (10.0 F).
Coldest night (TNn) at Carlsbad by year
YearColdest night (TNn)
1900-6.7 C (19.9 F)
1901-12.8 C (9.0 F)
1902-10.6 C (12.9 F)
1903-16.7 C (1.9 F)
1904-13.9 C (7.0 F)
1905-20.6 C (-5.1 F)
1906-16.7 C (1.9 F)
1907-7.2 C (19.0 F)
1908-10.6 C (12.9 F)
1909-17.8 C (0.0 F)
1910-14.4 C (6.1 F)
1911-17.8 C (0.0 F)
1912-12.2 C (10.0 F)
1913-19.4 C (-2.9 F)
1914-10.6 C (12.9 F)
1915-13.9 C (7.0 F)
1916-12.8 C (9.0 F)
1917-12.2 C (10.0 F)
1918-21.7 C (-7.1 F)
1919-13.9 C (7.0 F)
1920-12.2 C (10.0 F)
1921-11.7 C (10.9 F)
1922-13.3 C (8.1 F)
1923-15.6 C (3.9 F)
1924-15.0 C (5.0 F)
1925-10.6 C (12.9 F)
1926-18.9 C (-2.0 F)
1927-8.9 C (16.0 F)
1928-13.9 C (7.0 F)
1929-12.8 C (9.0 F)
1930-16.7 C (1.9 F)
1931-13.3 C (8.1 F)
1932-12.8 C (9.0 F)
1933-25.0 C (-13.0 F)
1934-10.6 C (12.9 F)
1935-12.8 C (9.0 F)
1936-11.7 C (10.9 F)
1937-10.6 C (12.9 F)
1938-12.2 C (10.0 F)
1939-13.3 C (8.1 F)
1940-13.9 C (7.0 F)
1941-7.2 C (19.0 F)
1942-12.8 C (9.0 F)
1943-12.8 C (9.0 F)
1944-11.7 C (10.9 F)
1945-7.8 C (18.0 F)
1946-10.0 C (14.0 F)
1947-20.0 C (-4.0 F)
1948-16.7 C (1.9 F)
1949-16.7 C (1.9 F)
1950-12.8 C (9.0 F)
1951-21.1 C (-6.0 F)
1952-8.9 C (16.0 F)
1953-20.0 C (-4.0 F)
1954-8.3 C (17.1 F)
1955-11.7 C (10.9 F)
1956-10.6 C (12.9 F)
1957-18.3 C (-0.9 F)
1958-12.2 C (10.0 F)
1959-11.7 C (10.9 F)
1960-13.3 C (8.1 F)
1961-8.9 C (16.0 F)
1962-26.7 C (-16.1 F)
1963-18.3 C (-0.9 F)
1964-15.6 C (3.9 F)
1965-10.6 C (12.9 F)
1966-14.4 C (6.1 F)
1967-13.3 C (8.1 F)
1968-10.0 C (14.0 F)
1969-11.7 C (10.9 F)
1970-12.8 C (9.0 F)
1971-16.1 C (3.0 F)
1972-21.1 C (-6.0 F)
1973-12.2 C (10.0 F)
1974-10.6 C (12.9 F)
1975-11.1 C (12.0 F)
1976-17.8 C (0.0 F)
1977-17.2 C (1.0 F)
1978-14.4 C (6.1 F)
1979-16.1 C (3.0 F)
1980-11.7 C (10.9 F)
1981-12.2 C (10.0 F)
1982-13.3 C (8.1 F)
1983-15.6 C (3.9 F)
1984-8.9 C (16.0 F)
1985-12.2 C (10.0 F)
1986-11.7 C (10.9 F)
1987-16.1 C (3.0 F)
1988-9.4 C (15.1 F)
1989-15.0 C (5.0 F)
1990-7.8 C (18.0 F)
1991-7.2 C (19.0 F)
1992-8.9 C (16.0 F)
1993-8.3 C (17.1 F)
1994-8.9 C (16.0 F)
1995-6.1 C (21.0 F)
1996-12.2 C (10.0 F)
1997-14.4 C (6.1 F)
1998-9.4 C (15.1 F)
1999-10.0 C (14.0 F)
2000-8.3 C (17.1 F)
2001-10.0 C (14.0 F)
2002-11.1 C (12.0 F)
2003-9.4 C (15.1 F)
2004-11.1 C (12.0 F)
2005-15.0 C (5.0 F)
2006-8.9 C (16.0 F)
2007-7.8 C (18.0 F)
2008-10.0 C (14.0 F)
2009-10.6 C (12.9 F)
2010-10.0 C (14.0 F)
2011-19.4 C (-2.9 F)
2012-8.3 C (17.1 F)
2013-8.9 C (16.0 F)
2014-11.7 C (10.9 F)
2015-12.8 C (9.0 F)
2016-11.7 C (10.9 F)
2017-12.2 C (10.0 F)
2018-11.1 C (12.0 F)
2019-7.2 C (19.0 F)
2020-8.3 C (17.1 F)
2021-7.8 C (18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Carlsbad by year The wettest day of the year at Carlsbad, 1900 to 2021. The record is 130.0 mm (5.1 in) in 1916, marked on the chart; the median year is 45.1 mm (1.8 in). 0501001501900192019401960198020002020Record: 130.0 mm (5.1 in) in 1916
The wettest day of the year at Carlsbad, 1900 to 2021. The record is 130.0 mm (5.1 in) in 1916, marked on the chart; the median year is 45.1 mm (1.8 in).
Wettest day (Rx1day) at Carlsbad by year
YearWettest day (Rx1day)
190011.4 mm (0.4 in)
190126.7 mm (1.1 in)
190296.5 mm (3.8 in)
190376.2 mm (3.0 in)
190468.3 mm (2.7 in)
190549.5 mm (1.9 in)
190662.5 mm (2.5 in)
190780.0 mm (3.1 in)
190875.7 mm (3.0 in)
190927.7 mm (1.1 in)
191019.3 mm (0.8 in)
191195.3 mm (3.8 in)
191227.7 mm (1.1 in)
191340.6 mm (1.6 in)
191438.6 mm (1.5 in)
191568.6 mm (2.7 in)
1916130.0 mm (5.1 in)
191722.1 mm (0.9 in)
191819.6 mm (0.8 in)
191990.7 mm (3.6 in)
192094.2 mm (3.7 in)
192120.3 mm (0.8 in)
192233.0 mm (1.3 in)
192352.8 mm (2.1 in)
192410.7 mm (0.4 in)
192540.6 mm (1.6 in)
192631.8 mm (1.3 in)
192722.1 mm (0.9 in)
192853.1 mm (2.1 in)
192939.4 mm (1.6 in)
193041.9 mm (1.6 in)
193142.2 mm (1.7 in)
193259.7 mm (2.4 in)
193345.0 mm (1.8 in)
193417.8 mm (0.7 in)
193544.5 mm (1.8 in)
193630.7 mm (1.2 in)
193733.5 mm (1.3 in)
193850.8 mm (2.0 in)
193935.6 mm (1.4 in)
194035.6 mm (1.4 in)
194183.8 mm (3.3 in)
194254.6 mm (2.1 in)
194339.4 mm (1.6 in)
194466.0 mm (2.6 in)
1945109.2 mm (4.3 in)
194650.8 mm (2.0 in)
194714.0 mm (0.6 in)
194894.0 mm (3.7 in)
194945.0 mm (1.8 in)
195057.2 mm (2.3 in)
195117.8 mm (0.7 in)
195245.7 mm (1.8 in)
195328.2 mm (1.1 in)
195438.1 mm (1.5 in)
195528.2 mm (1.1 in)
195638.1 mm (1.5 in)
195727.7 mm (1.1 in)
195819.1 mm (0.8 in)
195986.6 mm (3.4 in)
196077.0 mm (3.0 in)
196124.9 mm (1.0 in)
196257.4 mm (2.3 in)
196366.3 mm (2.6 in)
196413.2 mm (0.5 in)
196562.2 mm (2.4 in)
1966101.6 mm (4.0 in)
196745.2 mm (1.8 in)
196861.7 mm (2.4 in)
196962.5 mm (2.5 in)
197043.7 mm (1.7 in)
197158.4 mm (2.3 in)
197296.5 mm (3.8 in)
197346.5 mm (1.8 in)
197460.5 mm (2.4 in)
197553.3 mm (2.1 in)
197643.2 mm (1.7 in)
197756.6 mm (2.2 in)
197866.5 mm (2.6 in)
197937.1 mm (1.5 in)
1980116.8 mm (4.6 in)
198155.4 mm (2.2 in)
198258.4 mm (2.3 in)
198320.3 mm (0.8 in)
198459.7 mm (2.4 in)
198561.5 mm (2.4 in)
198669.3 mm (2.7 in)
198757.4 mm (2.3 in)
198872.4 mm (2.9 in)
198935.1 mm (1.4 in)
199034.0 mm (1.3 in)
199168.1 mm (2.7 in)
199265.5 mm (2.6 in)
199326.2 mm (1.0 in)
199428.4 mm (1.1 in)
199533.5 mm (1.3 in)
199647.8 mm (1.9 in)
199776.2 mm (3.0 in)
199826.7 mm (1.1 in)
199957.2 mm (2.3 in)
200050.8 mm (2.0 in)
200118.8 mm (0.7 in)
200240.1 mm (1.6 in)
200325.9 mm (1.0 in)
200472.6 mm (2.9 in)
200516.8 mm (0.7 in)
200632.5 mm (1.3 in)
200751.8 mm (2.0 in)
200825.1 mm (1.0 in)
200933.0 mm (1.3 in)
201047.5 mm (1.9 in)
201120.3 mm (0.8 in)
201240.9 mm (1.6 in)
201374.9 mm (2.9 in)
201468.6 mm (2.7 in)
201534.8 mm (1.4 in)
201653.3 mm (2.1 in)
201731.0 mm (1.2 in)
201843.9 mm (1.7 in)
201961.5 mm (2.4 in)
202031.8 mm (1.3 in)
20217.6 mm (0.30 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Carlsbad by year The wettest five days of the year at Carlsbad, 1900 to 2021. The record is 210.4 mm (8.3 in) in 2014, marked on the chart; the median year is 66.8 mm (2.6 in). 0501001502002501900192019401960198020002020Record: 210.4 mm (8.3 in) in 2014
The wettest five days of the year at Carlsbad, 1900 to 2021. The record is 210.4 mm (8.3 in) in 2014, marked on the chart; the median year is 66.8 mm (2.6 in).
Wettest five days (Rx5day) at Carlsbad by year
YearWettest five days (Rx5day)
190011.4 mm (0.4 in)
190136.4 mm (1.4 in)
1902185.5 mm (7.3 in)
190376.2 mm (3.0 in)
190470.6 mm (2.8 in)
190591.7 mm (3.6 in)
190683.8 mm (3.3 in)
1907101.1 mm (4.0 in)
1908147.6 mm (5.8 in)
190975.9 mm (3.0 in)
191031.0 mm (1.2 in)
191195.3 mm (3.8 in)
191269.1 mm (2.7 in)
191362.7 mm (2.5 in)
191491.7 mm (3.6 in)
191596.8 mm (3.8 in)
1916130.0 mm (5.1 in)
191742.0 mm (1.7 in)
191833.6 mm (1.3 in)
1919111.0 mm (4.4 in)
192094.2 mm (3.7 in)
192145.2 mm (1.8 in)
192259.3 mm (2.3 in)
192366.4 mm (2.6 in)
192410.7 mm (0.4 in)
192573.4 mm (2.9 in)
192667.9 mm (2.7 in)
192722.1 mm (0.9 in)
192877.2 mm (3.0 in)
192957.2 mm (2.3 in)
193047.5 mm (1.9 in)
193149.6 mm (2.0 in)
193284.6 mm (3.3 in)
193358.3 mm (2.3 in)
193434.7 mm (1.4 in)
193584.5 mm (3.3 in)
193684.1 mm (3.3 in)
193773.9 mm (2.9 in)
193855.2 mm (2.2 in)
193935.6 mm (1.4 in)
194054.8 mm (2.2 in)
1941195.4 mm (7.7 in)
194284.3 mm (3.3 in)
194375.5 mm (3.0 in)
194466.0 mm (2.6 in)
1945114.5 mm (4.5 in)
194659.2 mm (2.3 in)
194710.4 mm (0.4 in)
1948155.2 mm (6.1 in)
194984.1 mm (3.3 in)
1950110.8 mm (4.4 in)
195122.0 mm (0.9 in)
195252.6 mm (2.1 in)
195328.2 mm (1.1 in)
195463.8 mm (2.5 in)
195528.4 mm (1.1 in)
195639.4 mm (1.6 in)
195728.2 mm (1.1 in)
195832.1 mm (1.3 in)
195986.6 mm (3.4 in)
196095.5 mm (3.8 in)
196127.0 mm (1.1 in)
196258.9 mm (2.3 in)
196367.1 mm (2.6 in)
196429.4 mm (1.2 in)
196562.2 mm (2.4 in)
1966129.8 mm (5.1 in)
196745.2 mm (1.8 in)
196895.0 mm (3.7 in)
196977.0 mm (3.0 in)
197047.0 mm (1.9 in)
197170.1 mm (2.8 in)
1972115.6 mm (4.6 in)
197346.5 mm (1.8 in)
197474.7 mm (2.9 in)
197564.7 mm (2.5 in)
197659.7 mm (2.4 in)
197759.1 mm (2.3 in)
1978172.1 mm (6.8 in)
197951.4 mm (2.0 in)
1980148.3 mm (5.8 in)
198176.5 mm (3.0 in)
198259.5 mm (2.3 in)
198344.4 mm (1.7 in)
1984128.8 mm (5.1 in)
198561.5 mm (2.4 in)
1986129.3 mm (5.1 in)
198784.3 mm (3.3 in)
198891.2 mm (3.6 in)
198938.9 mm (1.5 in)
199074.4 mm (2.9 in)
1991109.9 mm (4.3 in)
199274.9 mm (2.9 in)
199343.2 mm (1.7 in)
199439.3 mm (1.5 in)
199556.6 mm (2.2 in)
1996106.2 mm (4.2 in)
1997106.7 mm (4.2 in)
199848.3 mm (1.9 in)
199972.7 mm (2.9 in)
200098.3 mm (3.9 in)
200121.5 mm (0.8 in)
200260.2 mm (2.4 in)
200326.4 mm (1.0 in)
200497.8 mm (3.9 in)
200530.3 mm (1.2 in)
2006106.2 mm (4.2 in)
200759.7 mm (2.4 in)
200835.0 mm (1.4 in)
200957.4 mm (2.3 in)
2010114.0 mm (4.5 in)
201134.8 mm (1.4 in)
201260.9 mm (2.4 in)
2013101.1 mm (4.0 in)
2014210.4 mm (8.3 in)
201573.7 mm (2.9 in)
2016102.9 mm (4.1 in)
201770.4 mm (2.8 in)
201845.2 mm (1.8 in)
201981.8 mm (3.2 in)
202038.2 mm (1.5 in)
202112.7 mm (0.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Carlsbad by year The longest dry spell of the year at Carlsbad, 1900 to 2021. The record is 160 days in 2011, marked on the chart; the median year is 58 days. 0501001502001900192019401960198020002020Record: 160 days in 2011
The longest dry spell of the year at Carlsbad, 1900 to 2021. The record is 160 days in 2011, marked on the chart; the median year is 58 days.
Longest dry spell (CDD) at Carlsbad by year
YearLongest dry spell (CDD)
190041 days
190124 days
190262 days
190364 days
190481 days
190538 days
190640 days
1907102 days
190875 days
190994 days
191095 days
191136 days
191250 days
191339 days
191430 days
191550 days
191649 days
191762 days
1918102 days
191934 days
192085 days
192167 days
192272 days
192342 days
192454 days
1925126 days
192658 days
192774 days
192868 days
192942 days
193085 days
193135 days
193248 days
193376 days
193459 days
193540 days
193650 days
193777 days
193848 days
193947 days
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201526 days
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201728 days
201844 days
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202042 days
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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.

Frost Dates and Growing Season

85 years with a frost

Across 85 years with a frost, the median last spring frost at Carlsbad falls on 3 April and the median first autumn frost on 4 November, which leaves a median of 218 days between them.

In 1982 to 2020 the median growing season was 222 days. That is 11 days more than in 1902 to 1942.

Fitted over all years, the growing season changes by +1.1 days per decade at this station.

Frost dates and growing season at Carlsbad
MeasureMedian, all yearsEarliest period (1902 to 1942)Recent period (1982 to 2020)Recent against earliestFitted trend
Last spring frost3 April5 April31 March5 days earlier-0.6 days per decade
First autumn frost4 November3 November7 November4 days later+0.5 days per decade
Growing days218 days211 days222 days11 days more+1.1 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

113 years, 1902 to 2020

A day with at least 46.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 121.6 mm (4.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Carlsbad: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years46.7 mm (1.8 in)
5 years68.0 mm (2.7 in)
10 years81.6 mm (3.2 in)
25 years98.2 mm (3.9 in)
50 years110.1 mm (4.3 in)
100 years121.6 mm (4.8 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 113 years of values from 1902 to 2020.

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: 130.0 mm (5.1 in) in 1916; 116.8 mm (4.6 in) in 1980; 101.6 mm (4.0 in) in 1966.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Carlsbad, at 1966 and 1998. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1966 ran 0.4 C (0.6 F) higher than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1998 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Carlsbad, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1966+0.4+0.6likely5
1998-0.4-0.7likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2001 to 2020 against 1961 to 1990

Over 2001 to 2020, Carlsbad had a mean temperature of 17.5 C (63.5 F) and 291.8 mm (11.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Penwell (United States, 168 km away), Grandfalls 3SSE (United States, 176 km away) and La Tuna 1 S (United States, 227 km away).

Climate twins of Carlsbad: stations whose 1961 to 1990 climate is closest to its 2001 to 2020 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
PenwellUnited States168 km (104 mi)17.5 C (63.5 F)334.6 mm (13.2 in)0.56
Grandfalls 3SSEUnited States176 km (109 mi)17.8 C (64.0 F)330.1 mm (13.0 in)0.57
La Tuna 1 SUnited States227 km (141 mi)17.4 C (63.3 F)222.8 mm (8.8 in)0.58

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Carlsbad standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Carlsbad 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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