Built 2026-10-19 (19 October 2026)

Heber (Black Mesa) Rs Weather Records (USC00023961)

Record envelope, standing records and threshold days for Heber (Black Mesa) Rs (USC00023961), Arizona, United States, with 77 years of record.

Key Facts for Heber (Black Mesa) Rs

  • Heber (Black Mesa) Rs (USC00023961) is a weather station in Arizona, United States at 34.39 latitude and -110.56 longitude, 2,009 m (6,590 ft) above sea level.
  • The station reports from 1950 to 2026, 77 years of record.
  • 1,464 records set at Heber (Black Mesa) Rs still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Heber (Black Mesa) Rs set a daily record low maximum temperature of 12.8 C (55.0 F) on 28 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Arizona, United States, 34.39 latitude, -110.56 longitude.
  • Elevation: 2,009 m (6,590 ft).
  • Period of record: 1950 to 2026, 77 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

12 days at or beyond a record
Daily record high and record low at Heber (Black Mesa) Rs, with 2026 drawn through them The band shows the record high and record low for each calendar day at Heber (Black Mesa) Rs. The lines show the 2026 daily maximum and minimum. 12 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 Heber (Black Mesa) Rs. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Heber (Black Mesa) Rs, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.2 C (72.0 F)-31.7 C (-25.1 F)15.0 C (59.0 F)-12.2 C (10.0 F)
Feb25.6 C (78.1 F)-27.8 C (-18.0 F)22.2 C (72.0 F)-10.0 C (14.0 F)
Mar28.9 C (84.0 F)-24.4 C (-11.9 F)28.9 C (84.0 F)-6.7 C (19.9 F)
Apr29.4 C (84.9 F)-16.1 C (3.0 F)21.7 C (71.1 F)-4.4 C (24.1 F)
May32.8 C (91.0 F)-10.6 C (12.9 F)28.3 C (82.9 F)-1.1 C (30.0 F)
Jun37.8 C (100.0 F)-6.1 C (21.0 F)32.2 C (90.0 F)3.9 C (39.0 F)
Jul37.8 C (100.0 F)-1.1 C (30.0 F)32.8 C (91.0 F)4.4 C (39.9 F)
Aug36.7 C (98.1 F)-1.1 C (30.0 F)31.7 C (89.1 F)8.9 C (48.0 F)
Sep34.4 C (93.9 F)-6.1 C (21.0 F)22.8 C (73.0 F)7.8 C (46.0 F)
Oct30.6 C (87.1 F)-12.8 C (9.0 F)21.7 C (71.1 F)7.2 C (45.0 F)
Nov25.6 C (78.1 F)-23.9 C (-11.0 F)n/an/a
Dec21.1 C (70.0 F)-30.0 C (-22.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Heber (Black Mesa) Rs by the year they were set 1,464 records at Heber (Black Mesa) Rs still stand. 1971 holds the most, with 41. 02040601950: 231951: 321952: 231953: 211954: 251955: 341956: 231957: 191958: 221959: 221960: 181961: 141962: 331963: 301964: 281965: 391966: 241967: 281968: 261969: 301970: 221971: 411972: 211973: 201974: 241975: 311976: 141977: 141978: 251979: 281980: 201981: 151982: 91983: 111984: 101985: 91986: 191987: 121988: 91989: 151990: 121991: 51992: 141993: 51994: 71995: 121996: 281997: 61998: 61999: 82000: 292001: 122002: 102003: 132004: 142005: 202006: 72007: 182008: 222009: 172010: 192011: 282012: 182013: 182014: 192015: 162016: 172017: 222018: 212019: 142020: 282021: 202022: 122023: 92024: 102025: 282026: 171950195819661974198219901998200620142022
1,464 records at Heber (Black Mesa) Rs still stand. 1971 holds the most, with 41.
Standing records at Heber (Black Mesa) Rs by the year they were set
Year setStanding records
195023
195132
195223
195321
195425
195534
195623
195719
195822
195922
196018
196114
196233
196330
196428
196539
196624
196728
196826
196930
197022
197141
197221
197320
197424
197531
197614
197714
197825
197928
198020
198115
19829
198311
198410
19859
198619
198712
19889
198915
199012
19915
199214
19935
19947
199512
199628
19976
19986
19998
200029
200112
200210
200313
200414
200520
20067
200718
200822
200917
201019
201128
201218
201318
201419
201516
201617
201722
201821
201914
202028
202120
202212
20239
202410
202528
202617

All-Time Record Progression

2 new records
When Heber (Black Mesa) Rs set new all-time records 2 all-time records were set at Heber (Black Mesa) Rs between 6 February 1989 and 24 July 2000. Each dot is a new record. Record low maximum temperatureRecord high minimum temperature6 February 1989: Record low maximum temperature -13.3 C (8.1 F)24 July 2000: Record high minimum temperature 24.4 C (75.9 F)199019952000
2 all-time records were set at Heber (Black Mesa) Rs between 6 February 1989 and 24 July 2000. Each dot is a new record.
When Heber (Black Mesa) Rs set new all-time records
DateKindDetail
1989-02-06Record low maximum temperatureRecord low maximum temperature -13.3 C (8.1 F)
2000-07-24Record high minimum temperatureRecord high minimum temperature 24.4 C (75.9 F)

Wettest Day of Each Month

Aug: 110.5 mm (4.4 in)
Record daily precipitation for each month at Heber (Black Mesa) Rs The wettest day on record for each calendar month at Heber (Black Mesa) Rs. The most was 110.5 mm (4.4 in) on 28 August 1951. 050100150 Jan: 94.7 mm (3.7 in), 24 January 2010 Jan Feb: 39.1 mm (1.5 in), 8 February 1994 Feb Mar: 53.3 mm (2.1 in), 3 March 2014 Mar Apr: 25.4 mm (1.0 in), 2 April 1999 Apr May: 36.6 mm (1.4 in), 5 May 1973 May Jun: 45.7 mm (1.8 in), 5 June 2015 Jun Jul: 54.4 mm (2.1 in), 18 July 2021 Jul Aug: 110.5 mm (4.4 in), 28 August 1951 Aug Sep: 85.1 mm (3.4 in), 7 September 1995 Sep Oct: 64.8 mm (2.6 in), 13 October 2025 Oct Nov: 60.7 mm (2.4 in), 22 November 2013 Nov Dec: 69.9 mm (2.8 in), 14 December 1967 Dec
The wettest day on record for each calendar month at Heber (Black Mesa) Rs. The most was 110.5 mm (4.4 in) on 28 August 1951.
Record daily precipitation for each month at Heber (Black Mesa) Rs
MonthRecord daily precipitation (mm)Date
Jan94.7 mm (3.7 in)24 January 2010
Feb39.1 mm (1.5 in)8 February 1994
Mar53.3 mm (2.1 in)3 March 2014
Apr25.4 mm (1.0 in)2 April 1999
May36.6 mm (1.4 in)5 May 1973
Jun45.7 mm (1.8 in)5 June 2015
Jul54.4 mm (2.1 in)18 July 2021
Aug110.5 mm (4.4 in)28 August 1951
Sep85.1 mm (3.4 in)7 September 1995
Oct64.8 mm (2.6 in)13 October 2025
Nov60.7 mm (2.4 in)22 November 2013
Dec69.9 mm (2.8 in)14 December 1967

Period of Record Coverage

1950 to 2026
Days with data per year at Heber (Black Mesa) Rs 77 years of record at Heber (Black Mesa) Rs, 1950 to 2026. 31 years have data for under 90 percent of days and are left out of rankings: 1950, 1982, 1983, 1984, 1985, 1986, 1987, 1988 and others. 1950: 153 of 365 days1951: 364 of 365 days1952: 351 of 366 days1953: 351 of 365 days1954: 360 of 365 days1955: 331 of 365 days1956: 330 of 366 days1957: 334 of 365 days1958: 357 of 365 days1959: 362 of 365 days1960: 366 of 366 days1961: 356 of 365 days1962: 364 of 365 days1963: 364 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 363 of 365 days1967: 365 of 365 days1968: 364 of 366 days1969: 363 of 365 days1970: 365 of 365 days1971: 364 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 352 of 365 days1975: 362 of 365 days1976: 361 of 366 days1977: 360 of 365 days1978: 355 of 365 days1979: 359 of 365 days1980: 353 of 366 days1981: 338 of 365 days1982: 288 of 365 days1983: 281 of 365 days1984: 283 of 366 days1985: 269 of 365 days1986: 295 of 365 days1987: 266 of 365 days1988: 290 of 366 days1989: 295 of 365 days1990: 293 of 365 days1991: 276 of 365 days1992: 286 of 366 days1993: 272 of 365 days1994: 270 of 365 days1995: 276 of 365 days1996: 238 of 366 days1997: 258 of 365 days1998: 232 of 365 days1999: 248 of 365 days2000: 243 of 366 days2001: 232 of 365 days2002: 243 of 365 days2003: 245 of 365 days2004: 252 of 366 days2005: 260 of 365 days2006: 277 of 365 days2007: 308 of 365 days2008: 326 of 366 days2009: 335 of 365 days2010: 336 of 365 days2011: 336 of 365 days2012: 360 of 366 days2013: 365 of 365 days2014: 355 of 365 days2015: 361 of 365 days2016: 359 of 366 days2017: 358 of 365 days2018: 330 of 365 days2019: 327 of 365 days2020: 361 of 366 days2021: 302 of 365 days2022: 343 of 365 days2023: 348 of 365 days2024: 357 of 366 days2025: 364 of 365 days2026: 247 of 365 days19501960197019801990200020102020
77 years of record at Heber (Black Mesa) Rs, 1950 to 2026. 31 years have data for under 90 percent of days and are left out of rankings: 1950, 1982, 1983, 1984, 1985, 1986, 1987, 1988 and others.
Days with data per year at Heber (Black Mesa) Rs
YearDays with dataShare of yearComplete
195015342%No
1951364100%Yes
195235196%Yes
195335196%Yes
195436099%Yes
195533191%Yes
195633090%Yes
195733492%Yes
195835798%Yes
195936299%Yes
1960366100%Yes
196135698%Yes
1962364100%Yes
1963364100%Yes
1964365100%Yes
196536399%Yes
196636399%Yes
1967365100%Yes
196836499%Yes
196936399%Yes
1970365100%Yes
1971364100%Yes
1972366100%Yes
1973364100%Yes
197435296%Yes
197536299%Yes
197636199%Yes
197736099%Yes
197835597%Yes
197935998%Yes
198035396%Yes
198133893%Yes
198228879%No
198328177%No
198428377%No
198526974%No
198629581%No
198726673%No
198829079%No
198929581%No
199029380%No
199127676%No
199228678%No
199327275%No
199427074%No
199527676%No
199623865%No
199725871%No
199823264%No
199924868%No
200024366%No
200123264%No
200224367%No
200324567%No
200425269%No
200526071%No
200627776%No
200730884%No
200832689%No
200933592%Yes
201033692%Yes
201133692%Yes
201236098%Yes
2013365100%Yes
201435597%Yes
201536199%Yes
201635998%Yes
201735898%Yes
201833090%Yes
201932790%No
202036199%Yes
202130283%No
202234394%Yes
202334895%Yes
202435798%Yes
2025364100%Yes
202624768%No

Latest Records

20
Latest records at Heber (Black Mesa) Rs
DateStationRecordValueBeat old record byOld record stoodSignificance
28 September 2026Heber (Black Mesa) Rs, USdaily low max (Provisional)12.8 C (55.0 F)2.8 C (5.0 F)44 years28 of 100 (Routine)
31 August 2026Heber (Black Mesa) Rs, USdaily low max (Provisional)17.8 C (64.0 F)0.5 C (0.9 F)17 years13 of 100 (Routine)
22 August 2026Heber (Black Mesa) Rs, USdaily high min (Provisional)16.7 C (62.1 F)1.1 C (2.0 F)56 years27 of 100 (Routine)
8 August 2026Heber (Black Mesa) Rs, USdaily high min (Tie)17.8 C (64.0 F)tie56 years6 of 100 (Routine)
5 August 2026Heber (Black Mesa) Rs, USdaily high min17.2 C (63.0 F)0.5 C (0.9 F)4 years9 of 100 (Routine)
20 July 2026Heber (Black Mesa) Rs, USdaily rain36.8 mm (1.4 in)0.2 mm (0.01 in)69 years27 of 100 (Routine)
17 June 2026Heber (Black Mesa) Rs, USdaily high min (Tie)16.7 C (62.1 F)tie23 years3 of 100 (Routine)
11 June 2026Heber (Black Mesa) Rs, USdaily high min (Tie)13.3 C (55.9 F)tie69 years6 of 100 (Routine)
26 May 2026Heber (Black Mesa) Rs, USdaily rain3.8 mm (0.15 in)1.0 mm (0.04 in)56 years20 of 100 (Routine)
1 April 2026Heber (Black Mesa) Rs, USdaily rain (Tie)10.2 mm (0.4 in)tie27 years3 of 100 (Routine)
30 March 2026Heber (Black Mesa) Rs, USdaily high min8.9 C (48.0 F)2.8 C (5.0 F)16 years17 of 100 (Routine)
29 March 2026Heber (Black Mesa) Rs, USdaily high max (Tie)22.2 C (72.0 F)tie57 years6 of 100 (Routine)
28 March 2026Heber (Black Mesa) Rs, USdaily high min7.8 C (46.0 F)3.4 C (6.1 F)29 years22 of 100 (Routine)
27 March 2026Heber (Black Mesa) Rs, USdaily high max26.1 C (79.0 F)1.7 C (3.1 F)63 years28 of 100 (Routine)
26 March 2026Heber (Black Mesa) Rs, USdaily high max25.6 C (78.1 F)2.8 C (5.0 F)55 years28 of 100 (Routine)
25 March 2026Heber (Black Mesa) Rs, USdaily high max27.8 C (82.0 F)4.5 C (8.1 F)37 years26 of 100 (Routine)
24 March 2026Heber (Black Mesa) Rs, USdaily high max26.1 C (79.0 F)3.9 C (7.0 F)28 years22 of 100 (Routine)
23 March 2026Heber (Black Mesa) Rs, USdaily high max25.6 C (78.1 F)2.3 C (4.1 F)55 years27 of 100 (Routine)
22 March 2026Heber (Black Mesa) Rs, USdaily high max26.1 C (79.0 F)2.8 C (5.0 F)21 years18 of 100 (Routine)
21 March 2026Heber (Black Mesa) Rs, USmonthly high max28.9 C (84.0 F)1.1 C (2.0 F)0 years19 of 100 (Routine)

Climate Trend

44 complete years, 1951 to 2025
Annual mean temperature at Heber (Black Mesa) Rs as warming stripes, 1951 to 2025 One stripe for each of 44 complete years at Heber (Black Mesa) Rs, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.1 F); red stripes are warmer. The coolest year was 1955, at 7.8 C (46.1 F), and the warmest was 2017, at 11.2 C (52.1 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1951: 9.3 C, -0.2 C from the station mean1952: 8.9 C, -0.6 C from the station mean1953: 9.5 C, 0.0 C from the station mean1954: 10.4 C, +0.9 C from the station mean1955: 7.8 C, -1.7 C from the station mean1956: 8.6 C, -0.9 C from the station mean1957: 9.1 C, -0.4 C from the station mean1958: 9.5 C, 0.0 C from the station mean1959: 9.7 C, +0.2 C from the station mean1960: 9.0 C, -0.5 C from the station mean1961: 9.1 C, -0.4 C from the station mean1962: 9.0 C, -0.5 C from the station mean1963: 9.2 C, -0.3 C from the station mean1964: 7.9 C, -1.6 C from the station mean1965: 8.2 C, -1.3 C from the station mean1966: 9.0 C, -0.6 C from the station mean1967: 9.0 C, -0.5 C from the station mean1968: 8.8 C, -0.7 C from the station mean1969: 9.6 C, +0.1 C from the station mean1970: 9.3 C, -0.2 C from the station mean1971: 8.9 C, -0.7 C from the station mean1972: 9.7 C, +0.1 C from the station mean1973: 8.9 C, -0.6 C from the station mean1974: 9.6 C, 0.0 C from the station mean1975: 8.4 C, -1.2 C from the station mean1976: 8.9 C, -0.6 C from the station mean1977: 9.8 C, +0.3 C from the station mean1978: 9.5 C, 0.0 C from the station mean1979: 9.1 C, -0.4 C from the station mean1980: 9.8 C, +0.2 C from the station mean2008: 10.0 C, +0.4 C from the station mean2009: 10.0 C, +0.4 C from the station mean2010: 9.9 C, +0.3 C from the station mean2012: 10.7 C, +1.2 C from the station mean2013: 9.5 C, 0.0 C from the station mean2014: 10.8 C, +1.2 C from the station mean2015: 10.4 C, +0.9 C from the station mean2016: 10.6 C, +1.1 C from the station mean2017: 11.2 C, +1.6 C from the station mean2020: 11.0 C, +1.4 C from the station mean2022: 10.0 C, +0.5 C from the station mean2023: 9.5 C, -0.1 C from the station mean2024: 10.7 C, +1.1 C from the station mean2025: 11.1 C, +1.5 C from the station mean19511960197019801990200020102020
One stripe for each of 44 complete years at Heber (Black Mesa) Rs, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 9.5 C (49.1 F); red stripes are warmer. The coolest year was 1955, at 7.8 C (46.1 F), and the warmest was 2017, at 11.2 C (52.1 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Heber (Black Mesa) Rs as warming stripes, 1951 to 2025
YearAnnual mean temperatureDifference from the station mean
19519.3 C-0.23 C
19528.9 C-0.63 C
19539.5 C+0.01 C
195410.4 C+0.88 C
19557.8 C-1.70 C
19568.6 C-0.89 C
19579.1 C-0.37 C
19589.5 C-0.02 C
19599.7 C+0.21 C
19609.0 C-0.50 C
19619.1 C-0.40 C
19629.0 C-0.47 C
19639.2 C-0.32 C
19647.9 C-1.59 C
19658.2 C-1.28 C
19669.0 C-0.56 C
19679.0 C-0.50 C
19688.8 C-0.74 C
19699.6 C+0.09 C
19709.3 C-0.18 C
19718.9 C-0.65 C
19729.7 C+0.15 C
19738.9 C-0.62 C
19749.6 C+0.04 C
19758.4 C-1.15 C
19768.9 C-0.58 C
19779.8 C+0.30 C
19789.5 C0.00 C
19799.1 C-0.44 C
19809.8 C+0.25 C
200810.0 C+0.45 C
200910.0 C+0.45 C
20109.9 C+0.35 C
201210.7 C+1.23 C
20139.5 C+0.02 C
201410.8 C+1.24 C
201510.4 C+0.87 C
201610.6 C+1.08 C
201711.2 C+1.65 C
202011.0 C+1.45 C
202210.0 C+0.47 C
20239.5 C-0.05 C
202410.7 C+1.14 C
202511.1 C+1.55 C

The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1951 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.5) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Heber (Black Mesa) Rs
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.2 to 0.3) per decade0.4 F (0.3 to 0.5) per decade1951 to 202544Rise
Mean daily maximum-0.05 C (-0.13 to 0.04) per decade-0.1 F (-0.2 to 0.1) per decade1951 to 202544Not clearly different from zero
Mean daily minimum0.5 C (0.4 to 0.6) per decade0.9 F (0.8 to 1.1) per decade1951 to 202544Rise

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

1950 to 2026
Yearly extremes at Heber (Black Mesa) Rs: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)197033.9 C (93.0 F)77
Coldest night (TNn)-31.7 C (-25.1 F)1963-20.0 C (-4.0 F)77
Wettest day (Rx1day)110.5 mm (4.4 in)195138.9 mm (1.5 in)77
Wettest five days (Rx5day)153.2 mm (6.0 in)195158.2 mm (2.3 in)77
Longest dry spell (CDD)147 days197249 days77

Hottest day (TXx)

Hottest day (TXx) at Heber (Black Mesa) Rs by year The hottest day of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 37.8 C (100.0 F) in 1970, marked on the chart; the median year is 33.9 C (93.0 F). 30323436381960198020002020Record: 37.8 C (100.0 F) in 1970
The hottest day of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 37.8 C (100.0 F) in 1970, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Heber (Black Mesa) Rs by year
YearHottest day (TXx)
195033.3 C (91.9 F)
195135.6 C (96.1 F)
195233.3 C (91.9 F)
195333.9 C (93.0 F)
195435.0 C (95.0 F)
195533.3 C (91.9 F)
195632.8 C (91.0 F)
195734.4 C (93.9 F)
195836.7 C (98.1 F)
195935.0 C (95.0 F)
196037.2 C (99.0 F)
196136.1 C (97.0 F)
196235.0 C (95.0 F)
196333.9 C (93.0 F)
196435.6 C (96.1 F)
196533.3 C (91.9 F)
196635.0 C (95.0 F)
196735.0 C (95.0 F)
196834.4 C (93.9 F)
196936.7 C (98.1 F)
197037.8 C (100.0 F)
197135.6 C (96.1 F)
197234.4 C (93.9 F)
197336.1 C (97.0 F)
197435.0 C (95.0 F)
197532.8 C (91.0 F)
197634.4 C (93.9 F)
197735.0 C (95.0 F)
197833.9 C (93.0 F)
197935.6 C (96.1 F)
198035.6 C (96.1 F)
198135.6 C (96.1 F)
198233.3 C (91.9 F)
198335.6 C (96.1 F)
198435.0 C (95.0 F)
198535.0 C (95.0 F)
198632.2 C (90.0 F)
198731.7 C (89.1 F)
198831.7 C (89.1 F)
198937.8 C (100.0 F)
199035.6 C (96.1 F)
199133.3 C (91.9 F)
199232.2 C (90.0 F)
199332.8 C (91.0 F)
199434.4 C (93.9 F)
199534.4 C (93.9 F)
199635.0 C (95.0 F)
199733.9 C (93.0 F)
199834.4 C (93.9 F)
199933.9 C (93.0 F)
200033.3 C (91.9 F)
200132.8 C (91.0 F)
200233.3 C (91.9 F)
200333.9 C (93.0 F)
200431.1 C (88.0 F)
200533.9 C (93.0 F)
200633.3 C (91.9 F)
200735.6 C (96.1 F)
200832.8 C (91.0 F)
200932.8 C (91.0 F)
201034.4 C (93.9 F)
201133.3 C (91.9 F)
201232.8 C (91.0 F)
201335.0 C (95.0 F)
201431.7 C (89.1 F)
201532.8 C (91.0 F)
201634.4 C (93.9 F)
201734.4 C (93.9 F)
201833.9 C (93.0 F)
201932.8 C (91.0 F)
202033.3 C (91.9 F)
202135.0 C (95.0 F)
202232.8 C (91.0 F)
202333.9 C (93.0 F)
202433.3 C (91.9 F)
202533.3 C (91.9 F)
202632.8 C (91.0 F)

Coldest night (TNn)

Coldest night (TNn) at Heber (Black Mesa) Rs by year The coldest night of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is -31.7 C (-25.1 F) in 1963, marked on the chart; the median year is -20.0 C (-4.0 F). -35-30-25-20-15-101960198020002020Record: -31.7 C (-25.1 F) in 1963
The coldest night of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is -31.7 C (-25.1 F) in 1963, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Heber (Black Mesa) Rs by year
YearColdest night (TNn)
1950-14.4 C (6.1 F)
1951-25.6 C (-14.1 F)
1952-21.7 C (-7.1 F)
1953-21.7 C (-7.1 F)
1954-19.4 C (-2.9 F)
1955-21.1 C (-6.0 F)
1956-27.2 C (-17.0 F)
1957-21.1 C (-6.0 F)
1958-22.8 C (-9.0 F)
1959-19.4 C (-2.9 F)
1960-29.4 C (-20.9 F)
1961-26.1 C (-15.0 F)
1962-27.8 C (-18.0 F)
1963-31.7 C (-25.1 F)
1964-23.9 C (-11.0 F)
1965-24.4 C (-11.9 F)
1966-28.3 C (-18.9 F)
1967-25.6 C (-14.1 F)
1968-30.0 C (-22.0 F)
1969-23.3 C (-9.9 F)
1970-28.9 C (-20.0 F)
1971-31.1 C (-24.0 F)
1972-21.1 C (-6.0 F)
1973-18.9 C (-2.0 F)
1974-22.2 C (-8.0 F)
1975-21.1 C (-6.0 F)
1976-23.9 C (-11.0 F)
1977-21.1 C (-6.0 F)
1978-28.3 C (-18.9 F)
1979-30.6 C (-23.1 F)
1980-18.3 C (-0.9 F)
1981-13.9 C (7.0 F)
1982-17.2 C (1.0 F)
1983-19.4 C (-2.9 F)
1984-16.1 C (3.0 F)
1985-25.6 C (-14.1 F)
1986-20.0 C (-4.0 F)
1987-23.9 C (-11.0 F)
1988-23.3 C (-9.9 F)
1989-19.4 C (-2.9 F)
1990-24.4 C (-11.9 F)
1991-20.6 C (-5.1 F)
1992-22.2 C (-8.0 F)
1993-17.2 C (1.0 F)
1994-18.3 C (-0.9 F)
1995-16.7 C (1.9 F)
1996-19.4 C (-2.9 F)
1997-22.2 C (-8.0 F)
1998-18.3 C (-0.9 F)
1999-15.6 C (3.9 F)
2000-17.8 C (0.0 F)
2001-20.0 C (-4.0 F)
2002-21.7 C (-7.1 F)
2003-18.3 C (-0.9 F)
2004-16.7 C (1.9 F)
2005-21.7 C (-7.1 F)
2006-17.8 C (0.0 F)
2007-16.7 C (1.9 F)
2008-18.9 C (-2.0 F)
2009-18.9 C (-2.0 F)
2010-16.7 C (1.9 F)
2011-27.8 C (-18.0 F)
2012-17.2 C (1.0 F)
2013-20.0 C (-4.0 F)
2014-13.9 C (7.0 F)
2015-18.3 C (-0.9 F)
2016-18.3 C (-0.9 F)
2017-17.2 C (1.0 F)
2018-15.6 C (3.9 F)
2019-19.4 C (-2.9 F)
2020-15.6 C (3.9 F)
2021-15.6 C (3.9 F)
2022-16.1 C (3.0 F)
2023-21.1 C (-6.0 F)
2024-19.4 C (-2.9 F)
2025-16.7 C (1.9 F)
2026-12.2 C (10.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Heber (Black Mesa) Rs by year The wettest day of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 110.5 mm (4.4 in) in 1951, marked on the chart; the median year is 38.9 mm (1.5 in). 02550751001251960198020002020Record: 110.5 mm (4.4 in) in 1951
The wettest day of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 110.5 mm (4.4 in) in 1951, marked on the chart; the median year is 38.9 mm (1.5 in).
Wettest day (Rx1day) at Heber (Black Mesa) Rs by year
YearWettest day (Rx1day)
195011.9 mm (0.5 in)
1951110.5 mm (4.4 in)
195248.8 mm (1.9 in)
195349.0 mm (1.9 in)
195434.8 mm (1.4 in)
195540.6 mm (1.6 in)
195636.6 mm (1.4 in)
195741.1 mm (1.6 in)
195832.5 mm (1.3 in)
195927.2 mm (1.1 in)
196028.4 mm (1.1 in)
196133.8 mm (1.3 in)
196241.4 mm (1.6 in)
196361.5 mm (2.4 in)
196435.6 mm (1.4 in)
196538.1 mm (1.5 in)
196633.0 mm (1.3 in)
196769.9 mm (2.8 in)
196825.4 mm (1.0 in)
196925.7 mm (1.0 in)
197048.3 mm (1.9 in)
197166.5 mm (2.6 in)
197264.0 mm (2.5 in)
197336.6 mm (1.4 in)
197449.5 mm (1.9 in)
197530.7 mm (1.2 in)
197638.1 mm (1.5 in)
197737.3 mm (1.5 in)
197845.2 mm (1.8 in)
197935.1 mm (1.4 in)
198047.8 mm (1.9 in)
198147.5 mm (1.9 in)
198232.5 mm (1.3 in)
198343.7 mm (1.7 in)
198434.5 mm (1.4 in)
198541.9 mm (1.6 in)
198636.3 mm (1.4 in)
198750.0 mm (2.0 in)
198833.5 mm (1.3 in)
198949.8 mm (2.0 in)
199056.9 mm (2.2 in)
199138.9 mm (1.5 in)
199241.9 mm (1.6 in)
199336.3 mm (1.4 in)
199439.1 mm (1.5 in)
199585.1 mm (3.4 in)
199635.6 mm (1.4 in)
199733.5 mm (1.3 in)
199828.4 mm (1.1 in)
199960.7 mm (2.4 in)
200045.0 mm (1.8 in)
200124.1 mm (0.9 in)
200219.3 mm (0.8 in)
200317.8 mm (0.7 in)
200447.0 mm (1.9 in)
200538.1 mm (1.5 in)
200641.4 mm (1.6 in)
200755.4 mm (2.2 in)
200829.0 mm (1.1 in)
200926.4 mm (1.0 in)
201094.7 mm (3.7 in)
201145.2 mm (1.8 in)
201231.8 mm (1.3 in)
201360.7 mm (2.4 in)
201453.3 mm (2.1 in)
201545.7 mm (1.8 in)
201630.7 mm (1.2 in)
201725.9 mm (1.0 in)
201842.7 mm (1.7 in)
201948.3 mm (1.9 in)
202033.3 mm (1.3 in)
202154.4 mm (2.1 in)
202230.7 mm (1.2 in)
202337.3 mm (1.5 in)
202427.2 mm (1.1 in)
202564.8 mm (2.6 in)
202643.9 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Heber (Black Mesa) Rs by year The wettest five days of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 153.2 mm (6.0 in) in 1951, marked on the chart; the median year is 58.2 mm (2.3 in). 0501001502001960198020002020Record: 153.2 mm (6.0 in) in 1951
The wettest five days of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 153.2 mm (6.0 in) in 1951, marked on the chart; the median year is 58.2 mm (2.3 in).
Wettest five days (Rx5day) at Heber (Black Mesa) Rs by year
YearWettest five days (Rx5day)
195020.5 mm (0.8 in)
1951153.2 mm (6.0 in)
195257.3 mm (2.3 in)
195361.2 mm (2.4 in)
195471.6 mm (2.8 in)
195554.6 mm (2.1 in)
195658.2 mm (2.3 in)
195773.6 mm (2.9 in)
195865.8 mm (2.6 in)
195954.9 mm (2.2 in)
196055.3 mm (2.2 in)
196141.4 mm (1.6 in)
196254.8 mm (2.2 in)
196392.8 mm (3.7 in)
196445.8 mm (1.8 in)
196552.4 mm (2.1 in)
196659.4 mm (2.3 in)
1967128.3 mm (5.1 in)
196845.2 mm (1.8 in)
196958.1 mm (2.3 in)
197073.0 mm (2.9 in)
197184.8 mm (3.3 in)
197285.1 mm (3.4 in)
197368.4 mm (2.7 in)
197462.5 mm (2.5 in)
197555.3 mm (2.2 in)
197666.6 mm (2.6 in)
197753.6 mm (2.1 in)
197893.7 mm (3.7 in)
197945.3 mm (1.8 in)
198080.9 mm (3.2 in)
198150.6 mm (2.0 in)
198254.3 mm (2.1 in)
198384.6 mm (3.3 in)
198448.5 mm (1.9 in)
198554.9 mm (2.2 in)
198673.4 mm (2.9 in)
198774.2 mm (2.9 in)
198886.9 mm (3.4 in)
198968.9 mm (2.7 in)
1990102.8 mm (4.0 in)
199152.6 mm (2.1 in)
1992100.6 mm (4.0 in)
199340.7 mm (1.6 in)
199433.0 mm (1.3 in)
1995104.6 mm (4.1 in)
199662.8 mm (2.5 in)
199741.4 mm (1.6 in)
199828.4 mm (1.1 in)
199972.4 mm (2.9 in)
200064.3 mm (2.5 in)
200152.6 mm (2.1 in)
200246.0 mm (1.8 in)
200335.6 mm (1.4 in)
200450.8 mm (2.0 in)
200552.6 mm (2.1 in)
200656.4 mm (2.2 in)
200777.0 mm (3.0 in)
200846.0 mm (1.8 in)
200934.3 mm (1.4 in)
2010124.2 mm (4.9 in)
201149.3 mm (1.9 in)
201232.6 mm (1.3 in)
201371.3 mm (2.8 in)
201453.3 mm (2.1 in)
201569.5 mm (2.7 in)
201641.6 mm (1.6 in)
201761.3 mm (2.4 in)
201892.5 mm (3.6 in)
201967.9 mm (2.7 in)
202043.2 mm (1.7 in)
202184.1 mm (3.3 in)
202276.6 mm (3.0 in)
202350.8 mm (2.0 in)
202439.9 mm (1.6 in)
202564.8 mm (2.6 in)
202671.1 mm (2.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Heber (Black Mesa) Rs by year The longest dry spell of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 147 days in 1972, marked on the chart; the median year is 49 days. 0501001501960198020002020Record: 147 days in 1972
The longest dry spell of the year at Heber (Black Mesa) Rs, 1950 to 2026. The record is 147 days in 1972, marked on the chart; the median year is 49 days.
Longest dry spell (CDD) at Heber (Black Mesa) Rs by year
YearLongest dry spell (CDD)
195052 days
195158 days
195240 days
195352 days
195464 days
195539 days
195644 days
195733 days
195847 days
195943 days
196085 days
196140 days
196233 days
196366 days
196460 days
196526 days
196655 days
196749 days
196831 days
196959 days
197040 days
197175 days
1972147 days
197367 days
197493 days
197532 days
197639 days
197749 days
197864 days
197934 days
198054 days
198131 days
198229 days
198338 days
198448 days
198519 days
198656 days
198750 days
198856 days
198961 days
199033 days
199160 days
199238 days
199353 days
199428 days
199538 days
199642 days
199738 days
199855 days
199998 days
200064 days
200131 days
200271 days
200346 days
200467 days
200573 days
200641 days
200752 days
200880 days
200937 days
201057 days
201139 days
201268 days
201375 days
201467 days
201536 days
201657 days
201787 days
201844 days
201945 days
202028 days
202145 days
202281 days
202351 days
202459 days
202543 days
202639 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

44 years with a frost

Across 44 years with a frost, the median last spring frost at Heber (Black Mesa) Rs falls on 6 June and the median first autumn frost on 25 September, which leaves a median of 110 days between them.

Fitted over all years, the growing season changes by +6.7 days per decade at this station.

Frost dates and growing season at Heber (Black Mesa) Rs
MeasureMedian, all yearsEarliest periodRecent period (1965 to 2025)Recent against earliestFitted trend
Last spring frost6 Junen/a6 Junen/a-3.8 days per decade
First autumn frost25 Septembern/a28 Septembern/a+2.9 days per decade
Growing days110 daysn/a119 daysn/a+6.7 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

62 years, 1951 to 2025

A day with at least 39.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 108.4 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Heber (Black Mesa) Rs: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.7 mm (1.6 in)
5 years53.5 mm (2.1 in)
10 years64.2 mm (2.5 in)
25 years79.9 mm (3.1 in)
50 years93.3 mm (3.7 in)
100 years108.4 mm (4.3 in)Longer than the 62 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, 62 years of values from 1951 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 110.5 mm (4.4 in) in 1951; 94.7 mm (3.7 in) in 2010; 85.1 mm (3.4 in) in 1995.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

1980 to 2025 against 1961 to 1990

Over 1980 to 2025, Heber (Black Mesa) Rs had a mean temperature of 10.3 C (50.6 F) and 367.3 mm (14.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Reserve Rs (United States, 181 km away), Pilot Rock 1 SE (United States, 1,418 km away) and Las Vegas 2 NW (United States, 501 km away).

Climate twins of Heber (Black Mesa) Rs: stations whose 1961 to 1990 climate is closest to its 1980 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Reserve RsUnited States181 km (112 mi)10.4 C (50.8 F)414.7 mm (16.3 in)0.45
Pilot Rock 1 SEUnited States1,418 km (881 mi)10.5 C (50.9 F)346.4 mm (13.6 in)0.72
Las Vegas 2 NWUnited States501 km (311 mi)9.8 C (49.6 F)403.9 mm (15.9 in)0.72

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 Heber (Black Mesa) Rs standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Heber (Black Mesa) Rs threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-17).