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Kitt Peak Weather Records (USC00024675)

Record envelope, standing records and threshold days for Kitt Peak (USC00024675), Arizona, United States, with 67 years of record.

Key Facts for Kitt Peak

  • Kitt Peak (USC00024675) is a weather station in Arizona, United States at 31.96 latitude and -111.60 longitude, 2,070 m (6,790 ft) above sea level.
  • The station reports from 1960 to 2026, 67 years of record.
  • 1,464 records set at Kitt Peak still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Kitt Peak set a daily record precipitation of 26.2 mm (1.0 in) on 29 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, 31.96 latitude, -111.60 longitude.
  • Elevation: 2,070 m (6,790 ft).
  • Period of record: 1960 to 2026, 67 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

16 days at or beyond a record
Daily record high and record low at Kitt Peak, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kitt Peak. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kitt Peak. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kitt Peak, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.7 C (71.1 F)-19.4 C (-2.9 F)16.1 C (61.0 F)-5.6 C (21.9 F)
Feb23.9 C (75.0 F)-18.9 C (-2.0 F)20.6 C (69.1 F)-1.7 C (28.9 F)
Mar28.3 C (82.9 F)-12.8 C (9.0 F)28.3 C (82.9 F)0.0 C (32.0 F)
Apr31.1 C (88.0 F)-9.4 C (15.1 F)22.8 C (73.0 F)2.2 C (36.0 F)
May32.2 C (90.0 F)-5.6 C (21.9 F)30.0 C (86.0 F)2.2 C (36.0 F)
Jun36.7 C (98.1 F)0.6 C (33.1 F)31.1 C (88.0 F)13.3 C (55.9 F)
Jul36.7 C (98.1 F)1.7 C (35.1 F)31.1 C (88.0 F)13.3 C (55.9 F)
Aug35.6 C (96.1 F)3.3 C (37.9 F)31.1 C (88.0 F)12.8 C (55.0 F)
Sep32.8 C (91.0 F)1.7 C (35.1 F)26.1 C (79.0 F)8.3 C (46.9 F)
Oct31.7 C (89.1 F)-6.7 C (19.9 F)22.2 C (72.0 F)8.3 C (46.9 F)
Nov30.6 C (87.1 F)-11.1 C (12.0 F)n/an/a
Dec22.2 C (72.0 F)-15.0 C (5.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kitt Peak by the year they were set 1,464 records at Kitt Peak still stand. 1971 holds the most, with 56. 02040601960: 71961: 151962: 371963: 311964: 401965: 381966: 171967: 301968: 291969: 521970: 171971: 561972: 191973: 241974: 201975: 301976: 241977: 161978: 191979: 371980: 241981: 151982: 171983: 111984: 151985: 251986: 251987: 251988: 121989: 431990: 361991: 161992: 151993: 161994: 271995: 251996: 241997: 191998: 131999: 182000: 322001: 232002: 122003: 282004: 262005: 142006: 182007: 212008: 132009: 242010: 272011: 382012: 202013: 202014: 142015: 112016: 232017: 292018: 102019: 162020: 12021: 72023: 42025: 202026: 341960196719741981198819952002200920162025
1,464 records at Kitt Peak still stand. 1971 holds the most, with 56.
Standing records at Kitt Peak by the year they were set
Year setStanding records
19607
196115
196237
196331
196440
196538
196617
196730
196829
196952
197017
197156
197219
197324
197420
197530
197624
197716
197819
197937
198024
198115
198217
198311
198415
198525
198625
198725
198812
198943
199036
199116
199215
199316
199427
199525
199624
199719
199813
199918
200032
200123
200212
200328
200426
200514
200618
200721
200813
200924
201027
201138
201220
201320
201414
201511
201623
201729
201810
201916
20201
20217
20234
202520
202634

All-Time Record Progression

4 new records
When Kitt Peak set new all-time records 4 all-time records were set at Kitt Peak between 15 July 2003 and 14 December 2011. Each dot is a new record. Record high minimum temperatureRecord daily precipitationRecord low minimum temperature15 July 2003: Record high minimum temperature 27.2 C (81.0 F)8 March 2010: Record daily precipitation 127.0 mm (5.0 in)2 January 2011: Record low minimum temperature -19.4 C (-2.9 F)14 December 2011: Record daily precipitation 165.1 mm (6.5 in)20052010
4 all-time records were set at Kitt Peak between 15 July 2003 and 14 December 2011. Each dot is a new record.
When Kitt Peak set new all-time records
DateKindDetail
2003-07-15Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
2010-03-08Record daily precipitationRecord daily precipitation 127.0 mm (5.0 in)
2011-01-02Record low minimum temperatureRecord low minimum temperature -19.4 C (-2.9 F)
2011-12-14Record daily precipitationRecord daily precipitation 165.1 mm (6.5 in)

Wettest Day of Each Month

Dec: 165.1 mm (6.5 in)
Record daily precipitation for each month at Kitt Peak The wettest day on record for each calendar month at Kitt Peak. The most was 165.1 mm (6.5 in) on 14 December 2011. 050100150200 Jan: 105.4 mm (4.1 in), 29 January 1979 Jan Feb: 88.6 mm (3.5 in), 7 February 1965 Feb Mar: 127.0 mm (5.0 in), 8 March 2010 Mar Apr: 44.2 mm (1.7 in), 10 April 1965 Apr May: 36.8 mm (1.4 in), 31 May 1986 May Jun: 61.0 mm (2.4 in), 26 June 1967 Jun Jul: 87.9 mm (3.5 in), 30 July 1964 Jul Aug: 115.6 mm (4.6 in), 24 August 1992 Aug Sep: 94.2 mm (3.7 in), 6 September 1970 Sep Oct: 119.4 mm (4.7 in), 2 October 1983 Oct Nov: 64.8 mm (2.6 in), 24 November 1978 Nov Dec: 165.1 mm (6.5 in), 14 December 2011 Dec
The wettest day on record for each calendar month at Kitt Peak. The most was 165.1 mm (6.5 in) on 14 December 2011.
Record daily precipitation for each month at Kitt Peak
MonthRecord daily precipitation (mm)Date
Jan105.4 mm (4.1 in)29 January 1979
Feb88.6 mm (3.5 in)7 February 1965
Mar127.0 mm (5.0 in)8 March 2010
Apr44.2 mm (1.7 in)10 April 1965
May36.8 mm (1.4 in)31 May 1986
Jun61.0 mm (2.4 in)26 June 1967
Jul87.9 mm (3.5 in)30 July 1964
Aug115.6 mm (4.6 in)24 August 1992
Sep94.2 mm (3.7 in)6 September 1970
Oct119.4 mm (4.7 in)2 October 1983
Nov64.8 mm (2.6 in)24 November 1978
Dec165.1 mm (6.5 in)14 December 2011

Period of Record Coverage

1960 to 2026
Days with data per year at Kitt Peak 67 years of record at Kitt Peak, 1960 to 2026. 17 years have data for under 90 percent of days and are left out of rankings: 1960, 1990, 1995, 1996, 2006, 2007, 2008, 2009 and others. 1960: 118 of 366 days1961: 356 of 365 days1962: 362 of 365 days1963: 358 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 364 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 364 of 365 days1983: 361 of 365 days1984: 364 of 366 days1985: 364 of 365 days1986: 362 of 365 days1987: 362 of 365 days1988: 364 of 366 days1989: 351 of 365 days1990: 321 of 365 days1991: 340 of 365 days1992: 338 of 366 days1993: 345 of 365 days1994: 355 of 365 days1995: 260 of 365 days1996: 328 of 366 days1997: 341 of 365 days1998: 357 of 365 days1999: 348 of 365 days2000: 351 of 366 days2001: 351 of 365 days2002: 358 of 365 days2003: 355 of 365 days2004: 331 of 366 days2005: 329 of 365 days2006: 318 of 365 days2007: 288 of 365 days2008: 288 of 366 days2009: 302 of 365 days2010: 332 of 365 days2011: 331 of 365 days2012: 343 of 366 days2013: 333 of 365 days2014: 337 of 365 days2015: 344 of 365 days2016: 334 of 366 days2017: 287 of 365 days2018: 290 of 365 days2019: 328 of 365 days2020: 71 of 366 days2021: 55 of 365 days2022: 9 of 365 days2023: 64 of 365 days2024: 4 of 366 days2025: 347 of 365 days2026: 274 of 365 days1960197019801990200020102020
67 years of record at Kitt Peak, 1960 to 2026. 17 years have data for under 90 percent of days and are left out of rankings: 1960, 1990, 1995, 1996, 2006, 2007, 2008, 2009 and others.
Days with data per year at Kitt Peak
YearDays with dataShare of yearComplete
196011832%No
196135698%Yes
196236299%Yes
196335898%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969364100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982364100%Yes
198336199%Yes
198436499%Yes
1985364100%Yes
198636299%Yes
198736299%Yes
198836499%Yes
198935196%Yes
199032188%No
199134093%Yes
199233892%Yes
199334595%Yes
199435597%Yes
199526071%No
199632890%No
199734193%Yes
199835798%Yes
199934895%Yes
200035196%Yes
200135196%Yes
200235898%Yes
200335597%Yes
200433190%Yes
200532990%Yes
200631887%No
200728879%No
200828879%No
200930283%No
201033291%Yes
201133191%Yes
201234394%Yes
201333391%Yes
201433792%Yes
201534494%Yes
201633491%Yes
201728779%No
201829079%No
201932890%No
20207119%No
20215515%No
202292%No
20236418%No
202441%No
202534795%Yes
202627475%No

Latest Records

20
Latest records at Kitt Peak
DateStationRecordValueBeat old record byOld record stoodSignificance
29 September 2026Kitt Peak, USdaily rain (Provisional)26.2 mm (1.0 in)20.4 mm (0.8 in)4 years22 of 100 (Routine)
17 September 2026Kitt Peak, USdaily rain (Provisional)56.4 mm (2.2 in)20.1 mm (0.8 in)7 years23 of 100 (Routine)
12 September 2026Kitt Peak, USdaily rain (Provisional)22.9 mm (0.9 in)2.6 mm (0.10 in)20 years13 of 100 (Routine)
31 August 2026Kitt Peak, USdaily rain (Provisional)53.8 mm (2.1 in)29.7 mm (1.2 in)17 years33 of 100 (Routine)
27 August 2026Kitt Peak, USdaily high min (Provisional)21.1 C (70.0 F)1.1 C (2.0 F)20 years16 of 100 (Routine)
27 August 2026Kitt Peak, USdaily high max (Tie, Provisional)31.1 C (88.0 F)tie44 years4 of 100 (Routine)
21 August 2026Kitt Peak, USdaily high min (Tie, Provisional)19.4 C (66.9 F)tie35 years4 of 100 (Routine)
19 August 2026Kitt Peak, USdaily high min (Tie, Provisional)18.9 C (66.0 F)tie7 years2 of 100 (Routine)
18 August 2026Kitt Peak, USdaily high max (Provisional)30.0 C (86.0 F)0.6 C (1.1 F)33 years17 of 100 (Routine)
18 August 2026Kitt Peak, USdaily high min (Provisional)20.6 C (69.1 F)1.7 C (3.1 F)15 years16 of 100 (Routine)
3 August 2026Kitt Peak, USdaily high min22.2 C (72.0 F)0.5 C (0.9 F)31 years17 of 100 (Routine)
2 August 2026Kitt Peak, USdaily high min21.7 C (71.1 F)1.1 C (2.0 F)56 years27 of 100 (Routine)
1 August 2026Kitt Peak, USdaily high min (Tie)22.2 C (72.0 F)tie32 years3 of 100 (Routine)
25 July 2026Kitt Peak, USdaily high min20.0 C (68.0 F)0.6 C (1.1 F)63 years26 of 100 (Routine)
24 July 2026Kitt Peak, USdaily high min20.6 C (69.1 F)0.6 C (1.1 F)32 years17 of 100 (Routine)
18 June 2026Kitt Peak, USdaily rain1.8 mm (0.07 in)1.8 mm (0.07 in)64 years20 of 100 (Routine)
11 June 2026Kitt Peak, USdaily high min (Tie)19.4 C (66.9 F)tie32 years3 of 100 (Routine)
13 May 2026Kitt Peak, USdaily high min16.7 C (62.1 F)0.6 C (1.1 F)29 years15 of 100 (Routine)
5 May 2026Kitt Peak, USdaily rain16.5 mm (0.6 in)7.9 mm (0.31 in)56 years20 of 100 (Routine)
1 May 2026Kitt Peak, USdaily rain4.3 mm (0.17 in)0.5 mm (0.02 in)44 years19 of 100 (Routine)

Climate Trend

47 complete years, 1961 to 2019
Annual mean temperature at Kitt Peak as warming stripes, 1961 to 2019 One stripe for each of 47 complete years at Kitt Peak, 1961 to 2019. Blue stripes are years cooler than the station's own mean of 12.9 C (55.2 F); red stripes are warmer. The coolest year was 1964, at 11.4 C (52.6 F), and the warmest was 1989, at 14.5 C (58.0 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1961: 12.8 C, -0.1 C from the station mean1962: 13.7 C, +0.8 C from the station mean1963: 13.5 C, +0.6 C from the station mean1964: 11.4 C, -1.5 C from the station mean1965: 12.2 C, -0.8 C from the station mean1966: 12.4 C, -0.5 C from the station mean1967: 12.2 C, -0.7 C from the station mean1968: 12.1 C, -0.9 C from the station mean1969: 11.8 C, -1.1 C from the station mean1970: 12.3 C, -0.6 C from the station mean1971: 11.6 C, -1.3 C from the station mean1972: 12.6 C, -0.3 C from the station mean1973: 11.8 C, -1.1 C from the station mean1974: 12.1 C, -0.8 C from the station mean1975: 11.6 C, -1.3 C from the station mean1976: 12.1 C, -0.8 C from the station mean1977: 13.0 C, +0.1 C from the station mean1978: 12.6 C, -0.3 C from the station mean1979: 12.9 C, -0.1 C from the station mean1980: 13.3 C, +0.4 C from the station mean1981: 13.7 C, +0.8 C from the station mean1982: 12.5 C, -0.4 C from the station mean1983: 12.1 C, -0.9 C from the station mean1984: 12.2 C, -0.7 C from the station mean1985: 12.6 C, -0.4 C from the station mean1986: 13.5 C, +0.6 C from the station mean1987: 12.6 C, -0.3 C from the station mean1988: 13.6 C, +0.7 C from the station mean1989: 14.5 C, +1.6 C from the station mean1991: 12.6 C, -0.3 C from the station mean1992: 12.9 C, 0.0 C from the station mean1993: 13.3 C, +0.4 C from the station mean1994: 13.8 C, +0.9 C from the station mean1996: 14.3 C, +1.3 C from the station mean1997: 13.2 C, +0.3 C from the station mean1998: 12.5 C, -0.4 C from the station mean1999: 13.9 C, +1.0 C from the station mean2000: 14.3 C, +1.4 C from the station mean2001: 13.3 C, +0.4 C from the station mean2002: 14.0 C, +1.1 C from the station mean2003: 13.9 C, +0.9 C from the station mean2004: 12.2 C, -0.7 C from the station mean2013: 13.0 C, +0.1 C from the station mean2014: 14.1 C, +1.1 C from the station mean2015: 13.5 C, +0.6 C from the station mean2016: 13.9 C, +1.0 C from the station mean2019: 13.0 C, +0.1 C from the station mean196119651970197519801985199019952000200520102015
One stripe for each of 47 complete years at Kitt Peak, 1961 to 2019. Blue stripes are years cooler than the station's own mean of 12.9 C (55.2 F); red stripes are warmer. The coolest year was 1964, at 11.4 C (52.6 F), and the warmest was 1989, at 14.5 C (58.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Kitt Peak as warming stripes, 1961 to 2019
YearAnnual mean temperatureDifference from the station mean
196112.8 C-0.13 C
196213.7 C+0.78 C
196313.5 C+0.60 C
196411.4 C-1.48 C
196512.2 C-0.76 C
196612.4 C-0.54 C
196712.2 C-0.67 C
196812.1 C-0.86 C
196911.8 C-1.15 C
197012.3 C-0.62 C
197111.6 C-1.35 C
197212.6 C-0.31 C
197311.8 C-1.13 C
197412.1 C-0.80 C
197511.6 C-1.34 C
197612.1 C-0.84 C
197713.0 C+0.09 C
197812.6 C-0.27 C
197912.9 C-0.06 C
198013.3 C+0.38 C
198113.7 C+0.82 C
198212.5 C-0.45 C
198312.1 C-0.86 C
198412.2 C-0.70 C
198512.6 C-0.36 C
198613.5 C+0.60 C
198712.6 C-0.27 C
198813.6 C+0.66 C
198914.5 C+1.56 C
199112.6 C-0.28 C
199212.9 C+0.02 C
199313.3 C+0.38 C
199413.8 C+0.93 C
199614.3 C+1.34 C
199713.2 C+0.31 C
199812.5 C-0.39 C
199913.9 C+0.96 C
200014.3 C+1.35 C
200113.3 C+0.36 C
200214.0 C+1.05 C
200313.9 C+0.94 C
200412.2 C-0.67 C
201313.0 C+0.11 C
201414.1 C+1.14 C
201513.5 C+0.63 C
201613.9 C+1.01 C
201913.0 C+0.08 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1961 to 2019. In Fahrenheit: 0.5 F (0.3 to 0.7) per decade. The slope is a straight line fitted to 47 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Kitt Peak
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.7) per decade1961 to 201947Rise
Mean daily maximum0.4 C (0.2 to 0.5) per decade0.7 F (0.4 to 1.0) per decade1961 to 201947Rise
Mean daily minimum0.19 C (0.03 to 0.35) per decade0.3 F (0.1 to 0.6) per decade1961 to 201947Rise

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

1960 to 2026
Yearly extremes at Kitt Peak: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)197932.8 C (91.0 F)67
Coldest night (TNn)-19.4 C (-2.9 F)2011-10.0 C (14.0 F)67
Wettest day (Rx1day)165.1 mm (6.5 in)201151.6 mm (2.0 in)66
Wettest five days (Rx5day)211.6 mm (8.3 in)198388.9 mm (3.5 in)65
Longest dry spell (CDD)150 days197257 days65

Hottest day (TXx)

Hottest day (TXx) at Kitt Peak by year The hottest day of the year at Kitt Peak, 1960 to 2026. The record is 36.7 C (98.1 F) in 1979, marked on the chart; the median year is 32.8 C (91.0 F). 102030401960198020002020Record: 36.7 C (98.1 F) in 1979
The hottest day of the year at Kitt Peak, 1960 to 2026. The record is 36.7 C (98.1 F) in 1979, marked on the chart; the median year is 32.8 C (91.0 F).
Hottest day (TXx) at Kitt Peak by year
YearHottest day (TXx)
196027.8 C (82.0 F)
196132.2 C (90.0 F)
196232.2 C (90.0 F)
196333.3 C (91.9 F)
196431.7 C (89.1 F)
196531.7 C (89.1 F)
196631.7 C (89.1 F)
196730.6 C (87.1 F)
196831.7 C (89.1 F)
196930.0 C (86.0 F)
197034.4 C (93.9 F)
197132.2 C (90.0 F)
197231.7 C (89.1 F)
197331.7 C (89.1 F)
197434.4 C (93.9 F)
197532.2 C (90.0 F)
197633.9 C (93.0 F)
197734.4 C (93.9 F)
197834.4 C (93.9 F)
197936.7 C (98.1 F)
198032.2 C (90.0 F)
198133.3 C (91.9 F)
198232.2 C (90.0 F)
198335.6 C (96.1 F)
198436.1 C (97.0 F)
198533.9 C (93.0 F)
198631.7 C (89.1 F)
198733.3 C (91.9 F)
198833.3 C (91.9 F)
198935.0 C (95.0 F)
199036.7 C (98.1 F)
199131.7 C (89.1 F)
199232.8 C (91.0 F)
199333.9 C (93.0 F)
199435.6 C (96.1 F)
199536.7 C (98.1 F)
199632.2 C (90.0 F)
199733.3 C (91.9 F)
199832.2 C (90.0 F)
199932.2 C (90.0 F)
200031.7 C (89.1 F)
200133.9 C (93.0 F)
200232.8 C (91.0 F)
200333.3 C (91.9 F)
200430.6 C (87.1 F)
200533.9 C (93.0 F)
200632.8 C (91.0 F)
200734.4 C (93.9 F)
200832.8 C (91.0 F)
200931.1 C (88.0 F)
201032.2 C (90.0 F)
201134.4 C (93.9 F)
201232.2 C (90.0 F)
201332.2 C (90.0 F)
201430.6 C (87.1 F)
201532.2 C (90.0 F)
201636.1 C (97.0 F)
201735.0 C (95.0 F)
201833.3 C (91.9 F)
201932.8 C (91.0 F)
202020.6 C (69.1 F)
202135.6 C (96.1 F)
202211.1 C (52.0 F)
202331.7 C (89.1 F)
202426.7 C (80.1 F)
202532.8 C (91.0 F)
202631.1 C (88.0 F)

Coldest night (TNn)

Coldest night (TNn) at Kitt Peak by year The coldest night of the year at Kitt Peak, 1960 to 2026. The record is -19.4 C (-2.9 F) in 2011, marked on the chart; the median year is -10.0 C (14.0 F). -20-10010201960198020002020Record: -19.4 C (-2.9 F) in 2011
The coldest night of the year at Kitt Peak, 1960 to 2026. The record is -19.4 C (-2.9 F) in 2011, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Kitt Peak by year
YearColdest night (TNn)
1960-11.1 C (12.0 F)
1961-7.8 C (18.0 F)
1962-13.3 C (8.1 F)
1963-13.3 C (8.1 F)
1964-7.8 C (18.0 F)
1965-11.1 C (12.0 F)
1966-9.4 C (15.1 F)
1967-11.1 C (12.0 F)
1968-14.4 C (6.1 F)
1969-12.8 C (9.0 F)
1970-8.3 C (17.1 F)
1971-13.3 C (8.1 F)
1972-10.0 C (14.0 F)
1973-9.4 C (15.1 F)
1974-11.1 C (12.0 F)
1975-12.2 C (10.0 F)
1976-12.2 C (10.0 F)
1977-9.4 C (15.1 F)
1978-14.4 C (6.1 F)
1979-16.7 C (1.9 F)
1980-6.1 C (21.0 F)
1981-6.7 C (19.9 F)
1982-12.2 C (10.0 F)
1983-7.8 C (18.0 F)
1984-9.4 C (15.1 F)
1985-15.0 C (5.0 F)
1986-11.1 C (12.0 F)
1987-14.4 C (6.1 F)
1988-11.1 C (12.0 F)
1989-8.9 C (16.0 F)
1990-15.0 C (5.0 F)
1991-8.3 C (17.1 F)
1992-7.2 C (19.0 F)
1993-6.7 C (19.9 F)
1994-7.8 C (18.0 F)
1995-7.8 C (18.0 F)
1996-8.3 C (17.1 F)
1997-10.6 C (12.9 F)
1998-8.3 C (17.1 F)
1999-8.3 C (17.1 F)
2000-5.6 C (21.9 F)
2001-11.1 C (12.0 F)
2002-11.1 C (12.0 F)
2003-11.7 C (10.9 F)
2004-12.2 C (10.0 F)
2005-7.2 C (19.0 F)
2006-8.3 C (17.1 F)
2007-12.8 C (9.0 F)
2008-13.3 C (8.1 F)
2009-12.2 C (10.0 F)
2010-11.1 C (12.0 F)
2011-19.4 C (-2.9 F)
2012-10.6 C (12.9 F)
2013-12.8 C (9.0 F)
2014-6.7 C (19.9 F)
2015-8.9 C (16.0 F)
2016-8.9 C (16.0 F)
2017-7.8 C (18.0 F)
2018-8.9 C (16.0 F)
2019-10.0 C (14.0 F)
2020-8.9 C (16.0 F)
2021-2.2 C (28.0 F)
2022-10.6 C (12.9 F)
2023-10.6 C (12.9 F)
202412.2 C (54.0 F)
2025-6.7 C (19.9 F)
2026-5.6 C (21.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kitt Peak by year The wettest day of the year at Kitt Peak, 1960 to 2026. The record is 165.1 mm (6.5 in) in 2011, marked on the chart; the median year is 51.6 mm (2.0 in). 0501001502001960198020002020Record: 165.1 mm (6.5 in) in 2011
The wettest day of the year at Kitt Peak, 1960 to 2026. The record is 165.1 mm (6.5 in) in 2011, marked on the chart; the median year is 51.6 mm (2.0 in).
Wettest day (Rx1day) at Kitt Peak by year
YearWettest day (Rx1day)
196037.1 mm (1.5 in)
196138.1 mm (1.5 in)
196266.0 mm (2.6 in)
196336.8 mm (1.4 in)
196487.9 mm (3.5 in)
196598.3 mm (3.9 in)
196664.0 mm (2.5 in)
196783.6 mm (3.3 in)
196858.2 mm (2.3 in)
196971.9 mm (2.8 in)
197094.2 mm (3.7 in)
197188.9 mm (3.5 in)
197270.6 mm (2.8 in)
197340.1 mm (1.6 in)
197450.8 mm (2.0 in)
197544.5 mm (1.8 in)
197637.6 mm (1.5 in)
197741.9 mm (1.6 in)
197871.1 mm (2.8 in)
1979105.4 mm (4.1 in)
198054.6 mm (2.1 in)
198156.4 mm (2.2 in)
198255.1 mm (2.2 in)
1983119.4 mm (4.7 in)
198461.0 mm (2.4 in)
198536.8 mm (1.4 in)
198647.0 mm (1.9 in)
198794.2 mm (3.7 in)
198840.6 mm (1.6 in)
198957.4 mm (2.3 in)
199051.1 mm (2.0 in)
199145.7 mm (1.8 in)
1992115.6 mm (4.6 in)
199357.2 mm (2.3 in)
199447.0 mm (1.9 in)
199527.9 mm (1.1 in)
199634.5 mm (1.4 in)
199778.7 mm (3.1 in)
199845.7 mm (1.8 in)
199945.7 mm (1.8 in)
200044.2 mm (1.7 in)
200135.6 mm (1.4 in)
200237.8 mm (1.5 in)
200355.9 mm (2.2 in)
200446.5 mm (1.8 in)
200548.5 mm (1.9 in)
200655.9 mm (2.2 in)
200781.3 mm (3.2 in)
200850.8 mm (2.0 in)
200937.3 mm (1.5 in)
2010127.0 mm (5.0 in)
2011165.1 mm (6.5 in)
201252.1 mm (2.1 in)
201385.1 mm (3.4 in)
201450.8 mm (2.0 in)
201553.3 mm (2.1 in)
201645.5 mm (1.8 in)
201735.6 mm (1.4 in)
201855.9 mm (2.2 in)
201952.1 mm (2.1 in)
20207.4 mm (0.29 in)
202127.4 mm (1.1 in)
2022n/a
202316.0 mm (0.6 in)
20240.0 mm (0.00 in)
202539.1 mm (1.5 in)
202656.4 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kitt Peak by year The wettest five days of the year at Kitt Peak, 1960 to 2026. The record is 211.6 mm (8.3 in) in 1983, marked on the chart; the median year is 88.9 mm (3.5 in). 01002003001960198020002020Record: 211.6 mm (8.3 in) in 1983
The wettest five days of the year at Kitt Peak, 1960 to 2026. The record is 211.6 mm (8.3 in) in 1983, marked on the chart; the median year is 88.9 mm (3.5 in).
Wettest five days (Rx5day) at Kitt Peak by year
YearWettest five days (Rx5day)
196055.9 mm (2.2 in)
196150.8 mm (2.0 in)
196270.1 mm (2.8 in)
196358.9 mm (2.3 in)
1964177.1 mm (7.0 in)
1965135.1 mm (5.3 in)
1966150.3 mm (5.9 in)
1967162.3 mm (6.4 in)
196876.0 mm (3.0 in)
196996.8 mm (3.8 in)
1970205.2 mm (8.1 in)
1971155.7 mm (6.1 in)
1972130.3 mm (5.1 in)
197396.2 mm (3.8 in)
197484.4 mm (3.3 in)
197579.8 mm (3.1 in)
197688.9 mm (3.5 in)
197773.6 mm (2.9 in)
1978117.9 mm (4.6 in)
1979134.6 mm (5.3 in)
198094.7 mm (3.7 in)
1981102.5 mm (4.0 in)
1982101.2 mm (4.0 in)
1983211.6 mm (8.3 in)
1984129.1 mm (5.1 in)
198563.5 mm (2.5 in)
198676.2 mm (3.0 in)
1987124.4 mm (4.9 in)
198890.6 mm (3.6 in)
198958.7 mm (2.3 in)
1990116.6 mm (4.6 in)
199150.6 mm (2.0 in)
1992132.1 mm (5.2 in)
1993111.0 mm (4.4 in)
199479.0 mm (3.1 in)
199556.1 mm (2.2 in)
199646.2 mm (1.8 in)
199798.1 mm (3.9 in)
199890.1 mm (3.5 in)
199983.6 mm (3.3 in)
2000101.1 mm (4.0 in)
200144.0 mm (1.7 in)
200267.6 mm (2.7 in)
2003105.4 mm (4.1 in)
200456.6 mm (2.2 in)
200585.8 mm (3.4 in)
2006105.9 mm (4.2 in)
200796.6 mm (3.8 in)
200885.9 mm (3.4 in)
200970.1 mm (2.8 in)
2010146.0 mm (5.7 in)
2011190.0 mm (7.5 in)
201265.6 mm (2.6 in)
201396.8 mm (3.8 in)
201462.0 mm (2.4 in)
201578.9 mm (3.1 in)
2016102.4 mm (4.0 in)
201763.3 mm (2.5 in)
201897.1 mm (3.8 in)
201986.1 mm (3.4 in)
20209.7 mm (0.38 in)
2021n/a
2022n/a
202316.0 mm (0.6 in)
20240.0 mm (0.00 in)
202559.4 mm (2.3 in)
202681.5 mm (3.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kitt Peak by year The longest dry spell of the year at Kitt Peak, 1960 to 2026. The record is 150 days in 1972, marked on the chart; the median year is 57 days. 0501001501960198020002020Record: 150 days in 1972
The longest dry spell of the year at Kitt Peak, 1960 to 2026. The record is 150 days in 1972, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Kitt Peak by year
YearLongest dry spell (CDD)
196025 days
196189 days
1962123 days
196336 days
196455 days
196536 days
196674 days
196748 days
196884 days
196957 days
197081 days
1971131 days
1972150 days
197380 days
1974101 days
197581 days
197684 days
197749 days
197852 days
197940 days
198058 days
198137 days
198261 days
198340 days
198483 days
198569 days
198673 days
198744 days
198857 days
198956 days
199036 days
199156 days
199272 days
199346 days
199453 days
199563 days
199672 days
199749 days
199893 days
199998 days
200082 days
200133 days
200284 days
200368 days
200472 days
200554 days
200669 days
200730 days
200875 days
200965 days
201076 days
201172 days
201250 days
201398 days
201447 days
201522 days
201659 days
201734 days
201846 days
201939 days
202024 days
2021n/a
2022n/a
202337 days
202431 days
202533 days
202643 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

47 years with a frost

Across 47 years with a frost, the median last spring frost at Kitt Peak falls on 26 April and the median first autumn frost on 9 November, which leaves a median of 197 days between them.

Fitted over all years, the growing season changes by +5.4 days per decade at this station.

Frost dates and growing season at Kitt Peak
MeasureMedian, all yearsEarliest periodRecent period (1978 to 2019)Recent against earliestFitted trend
Last spring frost26 Apriln/a20 Apriln/a-4.6 days per decade
First autumn frost9 Novembern/a8 Novembern/a+0.8 days per decade
Growing days197 daysn/a202 daysn/a+5.4 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

52 years, 1961 to 2025

A day with at least 55.2 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 182.1 mm (7.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Kitt Peak: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years55.2 mm (2.2 in)
5 years77.3 mm (3.0 in)
10 years95.8 mm (3.8 in)
25 years124.7 mm (4.9 in)
50 years151.0 mm (5.9 in)
100 years182.1 mm (7.2 in)Longer than the 52 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, 52 years of values from 1961 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: 165.1 mm (6.5 in) in 2011; 127.0 mm (5.0 in) in 2010; 119.4 mm (4.7 in) in 1983.

Station Changes

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

Download the Data

  • Data for Kitt Peak standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Kitt Peak 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 (2026-10-14).