Built 2026-10-17 (17 October 2026)

El Morro Natl Mon Weather Records (USC00292785)

Record envelope, standing records and threshold days for El Morro Natl Mon (USC00292785), New Mexico, United States, with 89 years of record.

Key Facts for El Morro Natl Mon

  • El Morro Natl Mon (USC00292785) is a weather station in New Mexico, United States at 35.04 latitude and -108.35 longitude, 2,202 m (7,223 ft) above sea level.
  • The station reports from 1938 to 2026, 89 years of record.
  • 1,464 records set at El Morro Natl Mon still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • El Morro Natl Mon set a daily record low maximum temperature of 10.6 C (51.1 F) on 30 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: New Mexico, United States, 35.04 latitude, -108.35 longitude.
  • Elevation: 2,202 m (7,223 ft).
  • Period of record: 1938 to 2026, 89 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

20 days at or beyond a record
Daily record high and record low at El Morro Natl Mon, with 2026 drawn through them The band shows the record high and record low for each calendar day at El Morro Natl Mon. The lines show the 2026 daily maximum and minimum. 20 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at El Morro Natl Mon. The lines show the 2026 daily maximum and minimum. 20 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at El Morro Natl Mon, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.0 C (68.0 F)-38.9 C (-38.0 F)15.6 C (60.1 F)-22.2 C (-8.0 F)
Feb22.2 C (72.0 F)-30.6 C (-23.1 F)19.4 C (66.9 F)-13.9 C (7.0 F)
Mar28.9 C (84.0 F)-26.1 C (-15.0 F)28.9 C (84.0 F)-8.9 C (16.0 F)
Apr30.6 C (87.1 F)-16.1 C (3.0 F)21.7 C (71.1 F)-9.4 C (15.1 F)
May33.9 C (93.0 F)-11.1 C (12.0 F)30.6 C (87.1 F)-7.2 C (19.0 F)
Jun37.8 C (100.0 F)-5.0 C (23.0 F)32.2 C (90.0 F)2.2 C (36.0 F)
Jul36.7 C (98.1 F)1.1 C (34.0 F)34.4 C (93.9 F)2.8 C (37.0 F)
Aug36.7 C (98.1 F)0.6 C (33.1 F)35.6 C (96.1 F)10.0 C (50.0 F)
Sep34.4 C (93.9 F)-6.1 C (21.0 F)30.0 C (86.0 F)4.4 C (39.9 F)
Oct30.6 C (87.1 F)-20.6 C (-5.1 F)25.0 C (77.0 F)3.3 C (37.9 F)
Nov25.6 C (78.1 F)-30.6 C (-23.1 F)n/an/a
Dec20.6 C (69.1 F)-35.0 C (-31.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at El Morro Natl Mon by the year they were set 1,464 records at El Morro Natl Mon still stand. 1949 holds the most, with 33. 0102030401938: 121939: 231940: 101941: 141942: 91943: 121944: 221945: 201946: 301947: 151948: 191949: 331950: 291951: 191952: 121953: 191954: 91955: 251956: 221957: 231958: 131959: 121960: 131961: 91962: 241963: 191964: 191965: 241966: 161967: 201968: 91969: 111970: 201971: 261972: 231973: 121974: 211975: 221976: 181977: 91978: 181979: 181980: 251981: 181982: 121983: 101984: 121985: 151986: 331987: 151988: 171989: 241990: 131991: 111992: 101993: 61994: 91995: 111996: 181997: 151998: 201999: 132000: 152001: 82002: 92003: 192004: 82005: 132006: 282007: 102008: 102009: 192010: 162011: 182012: 152013: 172014: 102015: 92016: 122017: 102018: 132019: 192020: 122021: 132022: 142023: 262024: 172025: 262026: 181938194719561965197419831992200120102019
1,464 records at El Morro Natl Mon still stand. 1949 holds the most, with 33.
Standing records at El Morro Natl Mon by the year they were set
Year setStanding records
193812
193923
194010
194114
19429
194312
194422
194520
194630
194715
194819
194933
195029
195119
195212
195319
19549
195525
195622
195723
195813
195912
196013
19619
196224
196319
196419
196524
196616
196720
19689
196911
197020
197126
197223
197312
197421
197522
197618
19779
197818
197918
198025
198118
198212
198310
198412
198515
198633
198715
198817
198924
199013
199111
199210
19936
19949
199511
199618
199715
199820
199913
200015
20018
20029
200319
20048
200513
200628
200710
200810
200919
201016
201118
201215
201317
201410
20159
201612
201710
201813
201919
202012
202113
202214
202326
202417
202526
202618

All-Time Record Progression

7 new records
When El Morro Natl Mon set new all-time records 7 all-time records were set at El Morro Natl Mon between 18 August 1972 and 13 July 2023. Each dot is a new record. Record daily precipitationRecord daily snowfallRecord high minimum temperatureRecord low maximum temperature18 August 1972: Record daily precipitation 53.3 mm (2.1 in)16 January 1987: Record daily snowfall 33.0 cm (13.0 in)4 August 1987: Record daily precipitation 58.4 mm (2.3 in)28 August 1993: Record daily precipitation 63.5 mm (2.5 in)3 September 1997: Record high minimum temperature 19.4 C (66.9 F)3 February 2011: Record low maximum temperature -15.6 C (3.9 F)13 July 2023: Record high minimum temperature 21.1 C (70.0 F)19801990200020102020
7 all-time records were set at El Morro Natl Mon between 18 August 1972 and 13 July 2023. Each dot is a new record.
When El Morro Natl Mon set new all-time records
DateKindDetail
1972-08-18Record daily precipitationRecord daily precipitation 53.3 mm (2.1 in)
1987-01-16Record daily snowfallRecord daily snowfall 33.0 cm (13.0 in)
1987-08-04Record daily precipitationRecord daily precipitation 58.4 mm (2.3 in)
1993-08-28Record daily precipitationRecord daily precipitation 63.5 mm (2.5 in)
1997-09-03Record high minimum temperatureRecord high minimum temperature 19.4 C (66.9 F)
2011-02-03Record low maximum temperatureRecord low maximum temperature -15.6 C (3.9 F)
2023-07-13Record high minimum temperatureRecord high minimum temperature 21.1 C (70.0 F)

Wettest Day of Each Month

Aug: 63.5 mm (2.5 in)
Record daily precipitation for each month at El Morro Natl Mon The wettest day on record for each calendar month at El Morro Natl Mon. The most was 63.5 mm (2.5 in) on 28 August 1993. 020406080 Jan: 30.5 mm (1.2 in), 28 January 1956 Jan Feb: 31.8 mm (1.3 in), 5 February 1989 Feb Mar: 43.2 mm (1.7 in), 28 March 2000 Mar Apr: 50.8 mm (2.0 in), 3 April 1977 Apr May: 27.9 mm (1.1 in), 1 May 2016 May Jun: 30.2 mm (1.2 in), 23 June 2022 Jun Jul: 38.1 mm (1.5 in), 8 July 2006 Jul Aug: 63.5 mm (2.5 in), 28 August 1993 Aug Sep: 51.3 mm (2.0 in), 6 September 1980 Sep Oct: 40.6 mm (1.6 in), 26 October 1998 Oct Nov: 26.9 mm (1.1 in), 25 November 1984 Nov Dec: 29.0 mm (1.1 in), 28 December 1983 Dec
The wettest day on record for each calendar month at El Morro Natl Mon. The most was 63.5 mm (2.5 in) on 28 August 1993.
Record daily precipitation for each month at El Morro Natl Mon
MonthRecord daily precipitation (mm)Date
Jan30.5 mm (1.2 in)28 January 1956
Feb31.8 mm (1.3 in)5 February 1989
Mar43.2 mm (1.7 in)28 March 2000
Apr50.8 mm (2.0 in)3 April 1977
May27.9 mm (1.1 in)1 May 2016
Jun30.2 mm (1.2 in)23 June 2022
Jul38.1 mm (1.5 in)8 July 2006
Aug63.5 mm (2.5 in)28 August 1993
Sep51.3 mm (2.0 in)6 September 1980
Oct40.6 mm (1.6 in)26 October 1998
Nov26.9 mm (1.1 in)25 November 1984
Dec29.0 mm (1.1 in)28 December 1983

Period of Record Coverage

1938 to 2026
Days with data per year at El Morro Natl Mon 89 years of record at El Morro Natl Mon, 1938 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1938, 1942, 1946, 1948, 1999, 2001, 2015, 2016 and others. 1938: 305 of 365 days1939: 364 of 365 days1940: 356 of 366 days1941: 332 of 365 days1942: 308 of 365 days1943: 355 of 365 days1944: 360 of 366 days1945: 363 of 365 days1946: 323 of 365 days1947: 331 of 365 days1948: 313 of 366 days1949: 347 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 341 of 365 days1955: 362 of 365 days1956: 364 of 366 days1957: 364 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 364 of 365 days1962: 364 of 365 days1963: 359 of 365 days1964: 366 of 366 days1965: 349 of 365 days1966: 359 of 365 days1967: 360 of 365 days1968: 361 of 366 days1969: 363 of 365 days1970: 362 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 362 of 365 days1978: 362 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 362 of 365 days1982: 360 of 365 days1983: 350 of 365 days1984: 364 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 363 of 366 days1989: 365 of 365 days1990: 359 of 365 days1991: 363 of 365 days1992: 357 of 366 days1993: 353 of 365 days1994: 351 of 365 days1995: 350 of 365 days1996: 332 of 366 days1997: 347 of 365 days1998: 349 of 365 days1999: 323 of 365 days2000: 344 of 366 days2001: 316 of 365 days2002: 340 of 365 days2003: 356 of 365 days2004: 360 of 366 days2005: 360 of 365 days2006: 358 of 365 days2007: 361 of 365 days2008: 362 of 366 days2009: 332 of 365 days2010: 357 of 365 days2011: 358 of 365 days2012: 355 of 366 days2013: 346 of 365 days2014: 363 of 365 days2015: 328 of 365 days2016: 321 of 366 days2017: 352 of 365 days2018: 349 of 365 days2019: 333 of 365 days2020: 280 of 366 days2021: 356 of 365 days2022: 362 of 365 days2023: 328 of 365 days2024: 358 of 366 days2025: 352 of 365 days2026: 274 of 365 days195019651980199520102025
89 years of record at El Morro Natl Mon, 1938 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1938, 1942, 1946, 1948, 1999, 2001, 2015, 2016 and others.
Days with data per year at El Morro Natl Mon
YearDays with dataShare of yearComplete
193830584%No
1939364100%Yes
194035697%Yes
194133291%Yes
194230884%No
194335597%Yes
194436098%Yes
194536399%Yes
194632388%No
194733191%Yes
194831386%No
194934795%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953364100%Yes
195434193%Yes
195536299%Yes
195636499%Yes
1957364100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961364100%Yes
1962364100%Yes
196335998%Yes
1964366100%Yes
196534996%Yes
196635998%Yes
196736099%Yes
196836199%Yes
196936399%Yes
197036299%Yes
1971365100%Yes
1972365100%Yes
197336399%Yes
1974364100%Yes
1975365100%Yes
1976366100%Yes
197736299%Yes
197836299%Yes
1979365100%Yes
1980365100%Yes
198136299%Yes
198236099%Yes
198335096%Yes
198436499%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
198836399%Yes
1989365100%Yes
199035998%Yes
199136399%Yes
199235798%Yes
199335397%Yes
199435196%Yes
199535096%Yes
199633291%Yes
199734795%Yes
199834996%Yes
199932388%No
200034494%Yes
200131687%No
200234093%Yes
200335698%Yes
200436098%Yes
200536099%Yes
200635898%Yes
200736199%Yes
200836299%Yes
200933291%Yes
201035798%Yes
201135898%Yes
201235597%Yes
201334695%Yes
201436399%Yes
201532890%No
201632188%No
201735296%Yes
201834996%Yes
201933391%Yes
202028077%No
202135698%Yes
202236299%Yes
202332890%No
202435898%Yes
202535296%Yes
202627475%No

Latest Records

20
Latest records at El Morro Natl Mon
DateStationRecordValueBeat old record byOld record stoodSignificance
30 September 2026El Morro Natl Mon, USdaily low max (Provisional)10.6 C (51.1 F)3.8 C (6.8 F)43 years31 of 100 (Routine)
17 September 2026El Morro Natl Mon, USdaily high min (Tie, Provisional)12.8 C (55.0 F)tie3 years2 of 100 (Routine)
15 September 2026El Morro Natl Mon, USdaily rain (Provisional)47.5 mm (1.9 in)34.5 mm (1.4 in)60 years66 of 100 (Major)
8 August 2026El Morro Natl Mon, USdaily high max (Tie)33.9 C (93.0 F)tie0 years2 of 100 (Routine)
5 August 2026El Morro Natl Mon, USdaily high max35.6 C (96.1 F)1.7 C (3.1 F)16 years18 of 100 (Routine)
4 August 2026El Morro Natl Mon, USdaily high max (Tie)33.9 C (93.0 F)tie25 years3 of 100 (Routine)
1 August 2026El Morro Natl Mon, USdaily high min16.1 C (61.0 F)0.5 C (0.9 F)5 years10 of 100 (Routine)
22 July 2026El Morro Natl Mon, USdaily low max22.8 C (73.0 F)1.1 C (2.0 F)40 years23 of 100 (Routine)
12 June 2026El Morro Natl Mon, USdaily high min16.1 C (61.0 F)1.1 C (2.0 F)4 years11 of 100 (Routine)
26 May 2026El Morro Natl Mon, USdaily rain8.1 mm (0.32 in)2.3 mm (0.09 in)32 years20 of 100 (Routine)
14 May 2026El Morro Natl Mon, USdaily high max30.6 C (87.1 F)2.3 C (4.1 F)88 years39 of 100 (Notable)
7 May 2026El Morro Natl Mon, USdaily low min-7.2 C (19.0 F)0.5 C (0.9 F)19 years14 of 100 (Routine)
24 April 2026El Morro Natl Mon, USdaily low min (Tie)-9.4 C (15.1 F)tie80 years8 of 100 (Routine)
29 March 2026El Morro Natl Mon, USdaily high max23.9 C (75.0 F)0.6 C (1.1 F)83 years33 of 100 (Routine)
27 March 2026El Morro Natl Mon, USdaily high max (Tie)22.8 C (73.0 F)tie40 years5 of 100 (Routine)
26 March 2026El Morro Natl Mon, USdaily high max26.7 C (80.1 F)2.8 C (5.0 F)55 years29 of 100 (Routine)
25 March 2026El Morro Natl Mon, USdaily high max22.8 C (73.0 F)1.1 C (2.0 F)69 years30 of 100 (Routine)
24 March 2026El Morro Natl Mon, USdaily high max24.4 C (75.9 F)2.7 C (4.9 F)69 years33 of 100 (Routine)
23 March 2026El Morro Natl Mon, USdaily high max25.6 C (78.1 F)2.8 C (5.0 F)8 years15 of 100 (Routine)
23 March 2026El Morro Natl Mon, USdaily high min (Tie)5.0 C (41.0 F)tie8 years2 of 100 (Routine)

Climate Trend

71 complete years, 1939 to 2025
Annual mean temperature at El Morro Natl Mon as warming stripes, 1939 to 2025 One stripe for each of 71 complete years at El Morro Natl Mon, 1939 to 2025. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1964, at 7.1 C (44.8 F), and the warmest was 2003, at 9.7 C (49.5 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1939: 8.4 C, -0.3 C from the station mean1940: 9.4 C, +0.7 C from the station mean1943: 9.5 C, +0.8 C from the station mean1944: 8.4 C, -0.3 C from the station mean1945: 8.4 C, -0.3 C from the station mean1949: 7.9 C, -0.8 C from the station mean1950: 9.4 C, +0.7 C from the station mean1951: 8.6 C, -0.1 C from the station mean1952: 8.6 C, -0.1 C from the station mean1953: 8.8 C, +0.1 C from the station mean1955: 8.2 C, -0.5 C from the station mean1956: 8.5 C, -0.2 C from the station mean1957: 8.9 C, +0.2 C from the station mean1958: 9.2 C, +0.5 C from the station mean1959: 8.9 C, +0.2 C from the station mean1960: 8.2 C, -0.5 C from the station mean1961: 8.4 C, -0.3 C from the station mean1962: 8.4 C, -0.3 C from the station mean1963: 8.6 C, -0.1 C from the station mean1964: 7.1 C, -1.6 C from the station mean1966: 8.3 C, -0.4 C from the station mean1967: 8.5 C, -0.2 C from the station mean1968: 7.8 C, -0.9 C from the station mean1969: 9.0 C, +0.3 C from the station mean1970: 8.5 C, -0.2 C from the station mean1971: 8.3 C, -0.4 C from the station mean1972: 9.0 C, +0.3 C from the station mean1973: 7.9 C, -0.8 C from the station mean1974: 8.8 C, +0.1 C from the station mean1975: 7.6 C, -1.1 C from the station mean1976: 8.6 C, -0.1 C from the station mean1977: 8.8 C, +0.1 C from the station mean1978: 9.0 C, +0.3 C from the station mean1979: 8.2 C, -0.5 C from the station mean1980: 9.4 C, +0.7 C from the station mean1981: 9.7 C, +1.0 C from the station mean1982: 8.3 C, -0.4 C from the station mean1983: 8.5 C, -0.2 C from the station mean1984: 8.7 C, 0.0 C from the station mean1985: 8.8 C, +0.1 C from the station mean1986: 9.4 C, +0.7 C from the station mean1987: 8.1 C, -0.6 C from the station mean1988: 8.6 C, -0.1 C from the station mean1989: 9.1 C, +0.4 C from the station mean1990: 8.5 C, -0.2 C from the station mean1991: 8.3 C, -0.4 C from the station mean1992: 8.1 C, -0.6 C from the station mean1993: 8.6 C, -0.1 C from the station mean1994: 9.0 C, +0.3 C from the station mean1995: 9.1 C, +0.4 C from the station mean1996: 9.3 C, +0.6 C from the station mean1997: 8.5 C, -0.2 C from the station mean1998: 8.8 C, +0.1 C from the station mean2000: 9.5 C, +0.8 C from the station mean2002: 9.1 C, +0.4 C from the station mean2003: 9.7 C, +1.0 C from the station mean2004: 8.8 C, +0.1 C from the station mean2005: 9.3 C, +0.6 C from the station mean2006: 8.2 C, -0.5 C from the station mean2007: 8.4 C, -0.3 C from the station mean2008: 8.3 C, -0.4 C from the station mean2010: 8.2 C, -0.5 C from the station mean2011: 8.2 C, -0.5 C from the station mean2012: 9.3 C, +0.6 C from the station mean2014: 9.0 C, +0.3 C from the station mean2017: 9.5 C, +0.8 C from the station mean2018: 9.3 C, +0.6 C from the station mean2021: 8.9 C, +0.2 C from the station mean2022: 8.6 C, -0.1 C from the station mean2024: 9.1 C, +0.4 C from the station mean2025: 9.6 C, +0.9 C from the station mean193919501960197019801990200020102020
One stripe for each of 71 complete years at El Morro Natl Mon, 1939 to 2025. Blue stripes are years cooler than the station's own mean of 8.7 C (47.7 F); red stripes are warmer. The coolest year was 1964, at 7.1 C (44.8 F), and the warmest was 2003, at 9.7 C (49.5 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at El Morro Natl Mon as warming stripes, 1939 to 2025
YearAnnual mean temperatureDifference from the station mean
19398.4 C-0.27 C
19409.4 C+0.66 C
19439.5 C+0.77 C
19448.4 C-0.32 C
19458.4 C-0.29 C
19497.9 C-0.76 C
19509.4 C+0.65 C
19518.6 C-0.11 C
19528.6 C-0.13 C
19538.8 C+0.05 C
19558.2 C-0.46 C
19568.5 C-0.22 C
19578.9 C+0.18 C
19589.2 C+0.48 C
19598.9 C+0.18 C
19608.2 C-0.51 C
19618.4 C-0.35 C
19628.4 C-0.27 C
19638.6 C-0.08 C
19647.1 C-1.61 C
19668.3 C-0.39 C
19678.5 C-0.19 C
19687.8 C-0.88 C
19699.0 C+0.27 C
19708.5 C-0.19 C
19718.3 C-0.39 C
19729.0 C+0.31 C
19737.9 C-0.80 C
19748.8 C+0.14 C
19757.6 C-1.12 C
19768.6 C-0.08 C
19778.8 C+0.09 C
19789.0 C+0.27 C
19798.2 C-0.49 C
19809.4 C+0.69 C
19819.7 C+0.99 C
19828.3 C-0.41 C
19838.5 C-0.21 C
19848.7 C+0.02 C
19858.8 C+0.12 C
19869.4 C+0.67 C
19878.1 C-0.61 C
19888.6 C-0.11 C
19899.1 C+0.36 C
19908.5 C-0.21 C
19918.3 C-0.42 C
19928.1 C-0.58 C
19938.6 C-0.10 C
19949.0 C+0.27 C
19959.1 C+0.36 C
19969.3 C+0.60 C
19978.5 C-0.19 C
19988.8 C+0.12 C
20009.5 C+0.80 C
20029.1 C+0.37 C
20039.7 C+1.00 C
20048.8 C+0.06 C
20059.3 C+0.61 C
20068.2 C-0.48 C
20078.4 C-0.31 C
20088.3 C-0.44 C
20108.2 C-0.53 C
20118.2 C-0.55 C
20129.3 C+0.61 C
20149.0 C+0.30 C
20179.5 C+0.82 C
20189.3 C+0.55 C
20218.9 C+0.20 C
20228.6 C-0.12 C
20249.1 C+0.44 C
20259.6 C+0.87 C

The annual mean temperature here has risen by 0.06 C (0.00 to 0.11) per decade over 1939 to 2025. In Fahrenheit: 0.10 F (0.01 to 0.19) per decade. The slope is a straight line fitted to 71 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at El Morro Natl Mon
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.06 C (0.00 to 0.11) per decade0.10 F (0.01 to 0.19) per decade1939 to 202571Rise
Mean daily maximum0.04 C (-0.03 to 0.11) per decade0.1 F (-0.1 to 0.2) per decade1939 to 202571Not clearly different from zero
Mean daily minimum0.07 C (0.01 to 0.13) per decade0.13 F (0.02 to 0.24) per decade1939 to 202571Rise

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

1938 to 2026
Yearly extremes at El Morro Natl Mon: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)195334.4 C (93.9 F)89
Coldest night (TNn)-38.9 C (-38.0 F)1963-24.4 C (-11.9 F)89
Wettest day (Rx1day)63.5 mm (2.5 in)199325.1 mm (1.0 in)89
Wettest five days (Rx5day)88.8 mm (3.5 in)200245.0 mm (1.8 in)89
Longest dry spell (CDD)87 days201741 days89

Hottest day (TXx)

Hottest day (TXx) at El Morro Natl Mon by year The hottest day of the year at El Morro Natl Mon, 1938 to 2026. The record is 37.8 C (100.0 F) in 1953, marked on the chart; the median year is 34.4 C (93.9 F). 303234363819401960198020002020Record: 37.8 C (100.0 F) in 1953
The hottest day of the year at El Morro Natl Mon, 1938 to 2026. The record is 37.8 C (100.0 F) in 1953, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at El Morro Natl Mon by year
YearHottest day (TXx)
193835.0 C (95.0 F)
193933.9 C (93.0 F)
194035.0 C (95.0 F)
194132.2 C (90.0 F)
194236.1 C (97.0 F)
194333.9 C (93.0 F)
194434.4 C (93.9 F)
194533.9 C (93.0 F)
194633.3 C (91.9 F)
194733.9 C (93.0 F)
194836.1 C (97.0 F)
194935.0 C (95.0 F)
195036.7 C (98.1 F)
195135.0 C (95.0 F)
195232.8 C (91.0 F)
195337.8 C (100.0 F)
195434.4 C (93.9 F)
195534.4 C (93.9 F)
195633.9 C (93.0 F)
195735.6 C (96.1 F)
195835.6 C (96.1 F)
195933.9 C (93.0 F)
196035.6 C (96.1 F)
196135.6 C (96.1 F)
196234.4 C (93.9 F)
196335.0 C (95.0 F)
196433.3 C (91.9 F)
196532.8 C (91.0 F)
196633.9 C (93.0 F)
196733.9 C (93.0 F)
196833.9 C (93.0 F)
196935.6 C (96.1 F)
197036.1 C (97.0 F)
197136.7 C (98.1 F)
197235.6 C (96.1 F)
197335.6 C (96.1 F)
197435.0 C (95.0 F)
197532.8 C (91.0 F)
197635.0 C (95.0 F)
197733.9 C (93.0 F)
197834.4 C (93.9 F)
197935.0 C (95.0 F)
198035.6 C (96.1 F)
198136.1 C (97.0 F)
198233.3 C (91.9 F)
198335.0 C (95.0 F)
198435.0 C (95.0 F)
198536.7 C (98.1 F)
198632.2 C (90.0 F)
198731.1 C (88.0 F)
198832.2 C (90.0 F)
198935.6 C (96.1 F)
199035.6 C (96.1 F)
199132.2 C (90.0 F)
199232.2 C (90.0 F)
199332.8 C (91.0 F)
199434.4 C (93.9 F)
199535.6 C (96.1 F)
199635.0 C (95.0 F)
199733.3 C (91.9 F)
199834.4 C (93.9 F)
199933.9 C (93.0 F)
200033.9 C (93.0 F)
200132.8 C (91.0 F)
200233.9 C (93.0 F)
200336.1 C (97.0 F)
200432.8 C (91.0 F)
200534.4 C (93.9 F)
200633.9 C (93.0 F)
200735.0 C (95.0 F)
200831.7 C (89.1 F)
200933.9 C (93.0 F)
201034.4 C (93.9 F)
201132.8 C (91.0 F)
201234.4 C (93.9 F)
201335.0 C (95.0 F)
201432.8 C (91.0 F)
201533.9 C (93.0 F)
201634.4 C (93.9 F)
201734.4 C (93.9 F)
201834.4 C (93.9 F)
201933.3 C (91.9 F)
202034.4 C (93.9 F)
202135.6 C (96.1 F)
202233.3 C (91.9 F)
202336.1 C (97.0 F)
202433.9 C (93.0 F)
202534.4 C (93.9 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at El Morro Natl Mon by year The coldest night of the year at El Morro Natl Mon, 1938 to 2026. The record is -38.9 C (-38.0 F) in 1963, marked on the chart; the median year is -24.4 C (-11.9 F). -40-30-20-1019401960198020002020Record: -38.9 C (-38.0 F) in 1963
The coldest night of the year at El Morro Natl Mon, 1938 to 2026. The record is -38.9 C (-38.0 F) in 1963, marked on the chart; the median year is -24.4 C (-11.9 F).
Coldest night (TNn) at El Morro Natl Mon by year
YearColdest night (TNn)
1938-20.0 C (-4.0 F)
1939-29.4 C (-20.9 F)
1940-19.4 C (-2.9 F)
1941-19.4 C (-2.9 F)
1942-26.1 C (-15.0 F)
1943-24.4 C (-11.9 F)
1944-23.3 C (-9.9 F)
1945-28.9 C (-20.0 F)
1946-25.6 C (-14.1 F)
1947-32.2 C (-26.0 F)
1948-26.1 C (-15.0 F)
1949-30.0 C (-22.0 F)
1950-23.9 C (-11.0 F)
1951-28.9 C (-20.0 F)
1952-22.8 C (-9.0 F)
1953-24.4 C (-11.9 F)
1954-16.7 C (1.9 F)
1955-26.7 C (-16.1 F)
1956-28.9 C (-20.0 F)
1957-17.2 C (1.0 F)
1958-25.0 C (-13.0 F)
1959-26.1 C (-15.0 F)
1960-28.9 C (-20.0 F)
1961-19.4 C (-2.9 F)
1962-30.6 C (-23.1 F)
1963-38.9 C (-38.0 F)
1964-24.4 C (-11.9 F)
1965-29.4 C (-20.9 F)
1966-28.3 C (-18.9 F)
1967-26.7 C (-16.1 F)
1968-25.0 C (-13.0 F)
1969-17.8 C (0.0 F)
1970-24.4 C (-11.9 F)
1971-35.6 C (-32.1 F)
1972-22.8 C (-9.0 F)
1973-20.0 C (-4.0 F)
1974-27.2 C (-17.0 F)
1975-26.7 C (-16.1 F)
1976-28.9 C (-20.0 F)
1977-30.0 C (-22.0 F)
1978-33.3 C (-27.9 F)
1979-28.9 C (-20.0 F)
1980-16.7 C (1.9 F)
1981-21.7 C (-7.1 F)
1982-25.0 C (-13.0 F)
1983-24.4 C (-11.9 F)
1984-21.7 C (-7.1 F)
1985-25.6 C (-14.1 F)
1986-16.1 C (3.0 F)
1987-26.1 C (-15.0 F)
1988-23.9 C (-11.0 F)
1989-26.7 C (-16.1 F)
1990-35.0 C (-31.0 F)
1991-25.0 C (-13.0 F)
1992-24.4 C (-11.9 F)
1993-27.8 C (-18.0 F)
1994-22.8 C (-9.0 F)
1995-21.1 C (-6.0 F)
1996-21.1 C (-6.0 F)
1997-26.7 C (-16.1 F)
1998-22.8 C (-9.0 F)
1999-20.6 C (-5.1 F)
2000-24.4 C (-11.9 F)
2001-27.2 C (-17.0 F)
2002-22.2 C (-8.0 F)
2003-26.7 C (-16.1 F)
2004-22.2 C (-8.0 F)
2005-21.1 C (-6.0 F)
2006-30.6 C (-23.1 F)
2007-29.4 C (-20.9 F)
2008-25.0 C (-13.0 F)
2009-25.6 C (-14.1 F)
2010-23.3 C (-9.9 F)
2011-33.3 C (-27.9 F)
2012-25.6 C (-14.1 F)
2013-28.3 C (-18.9 F)
2014-20.6 C (-5.1 F)
2015-18.9 C (-2.0 F)
2016-25.6 C (-14.1 F)
2017-23.9 C (-11.0 F)
2018-22.8 C (-9.0 F)
2019-24.4 C (-11.9 F)
2020-18.9 C (-2.0 F)
2021-19.4 C (-2.9 F)
2022-23.9 C (-11.0 F)
2023-23.3 C (-9.9 F)
2024-24.4 C (-11.9 F)
2025-23.9 C (-11.0 F)
2026-22.2 C (-8.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at El Morro Natl Mon by year The wettest day of the year at El Morro Natl Mon, 1938 to 2026. The record is 63.5 mm (2.5 in) in 1993, marked on the chart; the median year is 25.1 mm (1.0 in). 02040608019401960198020002020Record: 63.5 mm (2.5 in) in 1993
The wettest day of the year at El Morro Natl Mon, 1938 to 2026. The record is 63.5 mm (2.5 in) in 1993, marked on the chart; the median year is 25.1 mm (1.0 in).
Wettest day (Rx1day) at El Morro Natl Mon by year
YearWettest day (Rx1day)
193819.8 mm (0.8 in)
193920.1 mm (0.8 in)
194034.0 mm (1.3 in)
194127.9 mm (1.1 in)
194227.2 mm (1.1 in)
194331.2 mm (1.2 in)
194421.3 mm (0.8 in)
194520.3 mm (0.8 in)
194636.8 mm (1.4 in)
194732.8 mm (1.3 in)
194822.9 mm (0.9 in)
194921.6 mm (0.9 in)
195036.1 mm (1.4 in)
195130.5 mm (1.2 in)
195223.6 mm (0.9 in)
195318.5 mm (0.7 in)
195435.1 mm (1.4 in)
195519.1 mm (0.8 in)
195630.5 mm (1.2 in)
195736.6 mm (1.4 in)
195821.1 mm (0.8 in)
195927.9 mm (1.1 in)
196011.9 mm (0.5 in)
196130.2 mm (1.2 in)
196230.7 mm (1.2 in)
196323.9 mm (0.9 in)
196439.1 mm (1.5 in)
196527.9 mm (1.1 in)
196619.3 mm (0.8 in)
196727.9 mm (1.1 in)
196814.5 mm (0.6 in)
196932.8 mm (1.3 in)
197018.0 mm (0.7 in)
197124.4 mm (1.0 in)
197253.3 mm (2.1 in)
197326.7 mm (1.1 in)
197451.1 mm (2.0 in)
197517.0 mm (0.7 in)
197615.2 mm (0.6 in)
197750.8 mm (2.0 in)
197817.8 mm (0.7 in)
197926.9 mm (1.1 in)
198051.3 mm (2.0 in)
198118.0 mm (0.7 in)
198217.5 mm (0.7 in)
198337.8 mm (1.5 in)
198436.1 mm (1.4 in)
198527.2 mm (1.1 in)
198625.4 mm (1.0 in)
198758.4 mm (2.3 in)
198825.1 mm (1.0 in)
198935.1 mm (1.4 in)
199023.4 mm (0.9 in)
199130.2 mm (1.2 in)
199224.1 mm (0.9 in)
199363.5 mm (2.5 in)
199422.9 mm (0.9 in)
199521.6 mm (0.9 in)
199624.9 mm (1.0 in)
199726.7 mm (1.1 in)
199840.6 mm (1.6 in)
199947.8 mm (1.9 in)
200043.2 mm (1.7 in)
200121.8 mm (0.9 in)
200235.3 mm (1.4 in)
200316.0 mm (0.6 in)
200419.3 mm (0.8 in)
200518.8 mm (0.7 in)
200638.1 mm (1.5 in)
200739.6 mm (1.6 in)
200834.0 mm (1.3 in)
200916.5 mm (0.6 in)
201026.7 mm (1.1 in)
201124.4 mm (1.0 in)
201224.1 mm (0.9 in)
201315.5 mm (0.6 in)
201424.4 mm (1.0 in)
201520.3 mm (0.8 in)
201627.9 mm (1.1 in)
201718.8 mm (0.7 in)
201820.3 mm (0.8 in)
201920.6 mm (0.8 in)
202017.0 mm (0.7 in)
202114.7 mm (0.6 in)
202235.3 mm (1.4 in)
202322.4 mm (0.9 in)
202424.1 mm (0.9 in)
202518.5 mm (0.7 in)
202647.5 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at El Morro Natl Mon by year The wettest five days of the year at El Morro Natl Mon, 1938 to 2026. The record is 88.8 mm (3.5 in) in 2002, marked on the chart; the median year is 45.0 mm (1.8 in). 02040608010019401960198020002020Record: 88.8 mm (3.5 in) in 2002
The wettest five days of the year at El Morro Natl Mon, 1938 to 2026. The record is 88.8 mm (3.5 in) in 2002, marked on the chart; the median year is 45.0 mm (1.8 in).
Wettest five days (Rx5day) at El Morro Natl Mon by year
YearWettest five days (Rx5day)
193838.3 mm (1.5 in)
193926.1 mm (1.0 in)
194047.9 mm (1.9 in)
194146.2 mm (1.8 in)
194230.2 mm (1.2 in)
194355.9 mm (2.2 in)
194428.5 mm (1.1 in)
194528.2 mm (1.1 in)
194661.2 mm (2.4 in)
194766.5 mm (2.6 in)
194842.0 mm (1.7 in)
194935.3 mm (1.4 in)
195049.0 mm (1.9 in)
195140.9 mm (1.6 in)
195238.6 mm (1.5 in)
195340.3 mm (1.6 in)
195446.5 mm (1.8 in)
195551.1 mm (2.0 in)
195663.0 mm (2.5 in)
195739.9 mm (1.6 in)
195835.1 mm (1.4 in)
195963.2 mm (2.5 in)
196029.8 mm (1.2 in)
196133.7 mm (1.3 in)
196261.3 mm (2.4 in)
196340.2 mm (1.6 in)
196465.5 mm (2.6 in)
196537.8 mm (1.5 in)
196640.5 mm (1.6 in)
196735.0 mm (1.4 in)
196823.1 mm (0.9 in)
196954.5 mm (2.1 in)
197022.3 mm (0.9 in)
197142.7 mm (1.7 in)
197261.0 mm (2.4 in)
197337.6 mm (1.5 in)
197479.1 mm (3.1 in)
197548.2 mm (1.9 in)
197635.3 mm (1.4 in)
197763.8 mm (2.5 in)
197856.8 mm (2.2 in)
197958.0 mm (2.3 in)
198069.6 mm (2.7 in)
198136.8 mm (1.4 in)
198240.1 mm (1.6 in)
198378.2 mm (3.1 in)
198455.1 mm (2.2 in)
198556.3 mm (2.2 in)
198652.9 mm (2.1 in)
198778.7 mm (3.1 in)
198847.5 mm (1.9 in)
198957.0 mm (2.2 in)
199045.0 mm (1.8 in)
199131.5 mm (1.2 in)
199246.5 mm (1.8 in)
199382.6 mm (3.3 in)
199436.4 mm (1.4 in)
199527.2 mm (1.1 in)
199649.4 mm (1.9 in)
199740.9 mm (1.6 in)
199852.6 mm (2.1 in)
199951.4 mm (2.0 in)
200047.3 mm (1.9 in)
200148.0 mm (1.9 in)
200288.8 mm (3.5 in)
200333.7 mm (1.3 in)
200435.8 mm (1.4 in)
200535.8 mm (1.4 in)
200676.2 mm (3.0 in)
200767.5 mm (2.7 in)
200856.6 mm (2.2 in)
200925.9 mm (1.0 in)
201058.9 mm (2.3 in)
201147.7 mm (1.9 in)
201256.4 mm (2.2 in)
201331.2 mm (1.2 in)
201456.6 mm (2.2 in)
201540.2 mm (1.6 in)
201644.9 mm (1.8 in)
201726.3 mm (1.0 in)
201828.2 mm (1.1 in)
201932.7 mm (1.3 in)
202017.8 mm (0.7 in)
202140.6 mm (1.6 in)
202262.4 mm (2.5 in)
202325.2 mm (1.0 in)
202442.1 mm (1.7 in)
202529.0 mm (1.1 in)
202660.2 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at El Morro Natl Mon by year The longest dry spell of the year at El Morro Natl Mon, 1938 to 2026. The record is 87 days in 2017, marked on the chart; the median year is 41 days. 02040608010019401960198020002020Record: 87 days in 2017
The longest dry spell of the year at El Morro Natl Mon, 1938 to 2026. The record is 87 days in 2017, marked on the chart; the median year is 41 days.
Longest dry spell (CDD) at El Morro Natl Mon by year
YearLongest dry spell (CDD)
193839 days
193962 days
194031 days
194117 days
194261 days
194324 days
194430 days
194549 days
194642 days
194761 days
194849 days
194944 days
195048 days
195166 days
195240 days
195358 days
195437 days
195542 days
195644 days
195736 days
195849 days
195955 days
196041 days
196128 days
196262 days
196347 days
196427 days
196534 days
196638 days
196748 days
196842 days
196964 days
197025 days
197156 days
197246 days
197368 days
197477 days
197560 days
197624 days
197753 days
197839 days
197930 days
198050 days
198156 days
198263 days
198334 days
198432 days
198532 days
198636 days
198727 days
198838 days
198972 days
199024 days
199164 days
199235 days
199346 days
199430 days
199540 days
199660 days
199733 days
199867 days
199944 days
200077 days
200136 days
200271 days
200334 days
200478 days
200538 days
200643 days
200736 days
200836 days
200933 days
201053 days
201136 days
201245 days
201335 days
201452 days
201534 days
201627 days
201787 days
201843 days
201927 days
202039 days
202140 days
202278 days
202329 days
202434 days
202540 days
202629 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.

Frost Dates and Growing Season

71 years with a frost

Across 71 years with a frost, the median last spring frost at El Morro Natl Mon falls on 4 June and the median first autumn frost on 26 September, which leaves a median of 111 days between them.

In 1987 to 2025 the median growing season was 116 days. That is 6 days more than in 1939 to 1975.

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

Frost dates and growing season at El Morro Natl Mon
MeasureMedian, all yearsEarliest period (1939 to 1975)Recent period (1987 to 2025)Recent against earliestFitted trend
Last spring frost4 June5 June31 May5 days earlier-0.7 days per decade
First autumn frost26 September25 September26 September1 day later+0.4 days per decade
Growing days111 days110 days116 days6 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

81 years, 1939 to 2022

A day with at least 26.2 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 66.1 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at El Morro Natl Mon: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years26.2 mm (1.0 in)
5 years35.7 mm (1.4 in)
10 years42.4 mm (1.7 in)
25 years51.5 mm (2.0 in)
50 years58.6 mm (2.3 in)
100 years66.1 mm (2.6 in)Longer than the 81 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, 81 years of values from 1939 to 2022.

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: 63.5 mm (2.5 in) in 1993; 58.4 mm (2.3 in) in 1987; 53.3 mm (2.1 in) in 1972.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of El Morro Natl Mon, at 1967 and 1985. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1967 ran 0.3 C (0.5 F) higher than in the years before (possible change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1985 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at El Morro Natl Mon, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1967+0.3+0.5possible5
1985-0.4-0.7likely5

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

2004 to 2025 against 1961 to 1990

Over 2004 to 2025, El Morro Natl Mon had a mean temperature of 8.8 C (47.9 F) and 335.8 mm (13.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are El Rito (United States, 243 km away), Beaver (United States, 528 km away) and Lund (United States, 729 km away).

Climate twins of El Morro Natl Mon: stations whose 1961 to 1990 climate is closest to its 2004 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
El RitoUnited States243 km (151 mi)9.2 C (48.5 F)312.1 mm (12.3 in)0.57
BeaverUnited States528 km (328 mi)8.6 C (47.5 F)308.5 mm (12.1 in)0.61
LundUnited States729 km (453 mi)8.8 C (47.8 F)235.2 mm (9.3 in)0.66

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 El Morro Natl Mon standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for El Morro Natl Mon 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 (2026-10-15).