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Built 2026-10-17 (17 October 2026)

Lakeside Arizona Weather Records (USR0000ALAK)

Record envelope, standing records and threshold days for Lakeside Arizona (USR0000ALAK), Arizona, United States, with 38 years of record.

Key Facts for Lakeside Arizona

  • Lakeside Arizona (USR0000ALAK) is a weather station in Arizona, United States at 34.16 latitude and -109.98 longitude, 2,134 m (7,000 ft) above sea level.
  • The station reports from 1986 to 2023, 38 years of record.
  • 1,464 records set at Lakeside Arizona still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Lakeside Arizona tied a daily record high minimum temperature of 12.2 C (54.0 F) on 11 October 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, 34.16 latitude, -109.98 longitude.
  • Elevation: 2,134 m (7,000 ft).
  • Period of record: 1986 to 2023, 38 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

14 days at or beyond a record
Daily record high and record low at Lakeside Arizona, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lakeside Arizona. The lines show the 2026 daily maximum and minimum. 14 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 Lakeside Arizona. The lines show the 2026 daily maximum and minimum. 14 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lakeside Arizona, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan25.0 C (77.0 F)-28.3 C (-18.9 F)15.6 C (60.1 F)-14.4 C (6.1 F)
Feb26.1 C (79.0 F)-25.6 C (-14.1 F)21.1 C (70.0 F)-11.7 C (10.9 F)
Mar28.9 C (84.0 F)-20.0 C (-4.0 F)28.9 C (84.0 F)-6.1 C (21.0 F)
Apr28.3 C (82.9 F)-15.6 C (3.9 F)22.2 C (72.0 F)-5.0 C (23.0 F)
May33.3 C (91.9 F)-6.7 C (19.9 F)27.8 C (82.0 F)-1.7 C (28.9 F)
Jun36.1 C (97.0 F)-3.9 C (25.0 F)33.3 C (91.9 F)2.8 C (37.0 F)
Jul37.2 C (99.0 F)2.2 C (36.0 F)34.4 C (93.9 F)5.0 C (41.0 F)
Aug35.0 C (95.0 F)3.9 C (39.0 F)33.3 C (91.9 F)9.4 C (48.9 F)
Sep33.9 C (93.0 F)-2.2 C (28.0 F)30.0 C (86.0 F)4.4 C (39.9 F)
Oct29.4 C (84.9 F)-12.2 C (10.0 F)25.6 C (78.1 F)2.2 C (36.0 F)
Nov25.6 C (78.1 F)-20.0 C (-4.0 F)n/an/a
Dec21.1 C (70.0 F)-29.4 C (-20.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Lakeside Arizona by the year they were set 1,464 records at Lakeside Arizona still stand. 1990 holds the most, with 66. 0204060801986: 421987: 401988: 421989: 331990: 661991: 491992: 541993: 341994: 381995: 521996: 531997: 231998: 521999: 442000: 222001: 42002: 332003: 442004: 382005: 312006: 392007: 342008: 242009: 442010: 522011: 322012: 242013: 152014: 242015: 252016: 282017: 362018: 272019: 412020: 502021: 382022: 312023: 332024: 332025: 302026: 10198619911996200120062011201620212026
1,464 records at Lakeside Arizona still stand. 1990 holds the most, with 66.
Standing records at Lakeside Arizona by the year they were set
Year setStanding records
198642
198740
198842
198933
199066
199149
199254
199334
199438
199552
199653
199723
199852
199944
200022
20014
200233
200344
200438
200531
200639
200734
200824
200944
201052
201132
201224
201315
201424
201525
201628
201736
201827
201941
202050
202138
202231
202333
202433
202530
202610

All-Time Record Progression

1 new records
When Lakeside Arizona set new all-time records 1 all-time records were set at Lakeside Arizona between 10 July 2021 and 10 July 2021. Each dot is a new record. Record high maximum temperature10 July 2021: Record high maximum temperature 37.2 C (99.0 F)
1 all-time records were set at Lakeside Arizona between 10 July 2021 and 10 July 2021. Each dot is a new record.
When Lakeside Arizona set new all-time records
DateKindDetail
2021-07-10Record high maximum temperatureRecord high maximum temperature 37.2 C (99.0 F)

Period of Record Coverage

1986 to 2026
Days with data per year at Lakeside Arizona 41 years of record at Lakeside Arizona, 1986 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1989, 1991, 1998, 2000, 2001, 2013, 2020, 2026. 1986: 343 of 365 days1987: 354 of 365 days1988: 360 of 366 days1989: 309 of 365 days1990: 363 of 365 days1991: 305 of 365 days1992: 364 of 366 days1993: 351 of 365 days1994: 359 of 365 days1995: 339 of 365 days1996: 364 of 366 days1997: 352 of 365 days1998: 279 of 365 days1999: 348 of 365 days2000: 165 of 366 days2001: 28 of 365 days2002: 343 of 365 days2003: 359 of 365 days2004: 345 of 366 days2005: 364 of 365 days2006: 363 of 365 days2007: 361 of 365 days2008: 363 of 366 days2009: 362 of 365 days2010: 364 of 365 days2011: 364 of 365 days2012: 366 of 366 days2013: 133 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 326 of 366 days2021: 365 of 365 days2022: 345 of 365 days2023: 363 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days1990200020102020
41 years of record at Lakeside Arizona, 1986 to 2026. 8 years have data for under 90 percent of days and are left out of rankings: 1989, 1991, 1998, 2000, 2001, 2013, 2020, 2026.
Days with data per year at Lakeside Arizona
YearDays with dataShare of yearComplete
198634394%Yes
198735497%Yes
198836098%Yes
198930985%No
199036399%Yes
199130584%No
199236499%Yes
199335196%Yes
199435998%Yes
199533993%Yes
199636499%Yes
199735296%Yes
199827976%No
199934895%Yes
200016545%No
2001288%No
200234394%Yes
200335998%Yes
200434594%Yes
2005364100%Yes
200636399%Yes
200736199%Yes
200836399%Yes
200936299%Yes
2010364100%Yes
2011364100%Yes
2012366100%Yes
201313336%No
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
202032689%No
2021365100%Yes
202234595%Yes
202336399%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Lakeside Arizona
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Lakeside Arizona, USdaily high min (Tie, Provisional)12.2 C (54.0 F)tie3 years1 of 100 (Routine)
30 September 2026Lakeside Arizona, USdaily low max (Provisional)12.8 C (55.0 F)2.2 C (4.0 F)4 years11 of 100 (Routine)
29 September 2026Lakeside Arizona, USdaily low max (Provisional)12.2 C (54.0 F)5.0 C (9.0 F)21 years24 of 100 (Routine)
28 September 2026Lakeside Arizona, USdaily low max (Provisional)15.0 C (59.0 F)2.8 C (5.0 F)4 years13 of 100 (Routine)
14 September 2026Lakeside Arizona, USdaily high min (Provisional)14.4 C (57.9 F)2.2 C (4.0 F)7 years12 of 100 (Routine)
31 August 2026Lakeside Arizona, USdaily low max (Provisional)18.9 C (66.0 F)1.1 C (2.0 F)17 years12 of 100 (Routine)
29 August 2026Lakeside Arizona, USdaily high min (Provisional)13.9 C (57.0 F)0.6 C (1.1 F)37 years17 of 100 (Routine)
25 August 2026Lakeside Arizona, USdaily high max (Provisional)32.2 C (90.0 F)0.5 C (0.9 F)7 years7 of 100 (Routine)
2 August 2026Lakeside Arizona, USdaily high min (Tie)16.1 C (61.0 F)tie19 years2 of 100 (Routine)
12 June 2026Lakeside Arizona, USdaily high max (Tie)33.3 C (91.9 F)tie4 years1 of 100 (Routine)
11 June 2026Lakeside Arizona, USdaily high max (Tie)32.2 C (90.0 F)tie1 year1 of 100 (Routine)
29 March 2026Lakeside Arizona, USdaily high max (Tie)21.7 C (71.1 F)tie27 years3 of 100 (Routine)
27 March 2026Lakeside Arizona, USdaily high max26.7 C (80.1 F)3.9 C (7.0 F)40 years23 of 100 (Routine)
25 March 2026Lakeside Arizona, USdaily high max27.8 C (82.0 F)4.5 C (8.1 F)0 years12 of 100 (Routine)
24 March 2026Lakeside Arizona, USdaily high max26.1 C (79.0 F)5.0 C (9.0 F)36 years23 of 100 (Routine)
23 March 2026Lakeside Arizona, USdaily high max25.0 C (77.0 F)3.3 C (5.9 F)40 years22 of 100 (Routine)
22 March 2026Lakeside Arizona, USdaily high max25.6 C (78.1 F)2.8 C (5.0 F)28 years17 of 100 (Routine)
21 March 2026Lakeside Arizona, USmonthly high max (Tie)28.9 C (84.0 F)tie0 years3 of 100 (Routine)
20 March 2026Lakeside Arizona, USmonthly high max28.9 C (84.0 F)0.6 C (1.1 F)0 years15 of 100 (Routine)
19 March 2026Lakeside Arizona, USmonthly high max28.3 C (82.9 F)2.2 C (4.0 F)37 years29 of 100 (Routine)

Climate Trend

28 complete years, 1987 to 2025
Annual mean temperature at Lakeside Arizona as warming stripes, 1987 to 2025 One stripe for each of 28 complete years at Lakeside Arizona, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 10.0 C (50.1 F); red stripes are warmer. The coolest year was 1992, at 8.6 C (47.5 F), and the warmest was 2017, at 11.3 C (52.4 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1987: 9.8 C, -0.2 C from the station mean1988: 10.2 C, +0.1 C from the station mean1990: 9.2 C, -0.8 C from the station mean1992: 8.6 C, -1.4 C from the station mean1993: 9.5 C, -0.6 C from the station mean1994: 9.6 C, -0.5 C from the station mean1995: 10.1 C, 0.0 C from the station mean1996: 10.7 C, +0.7 C from the station mean1997: 9.8 C, -0.2 C from the station mean2003: 10.1 C, +0.1 C from the station mean2005: 10.1 C, 0.0 C from the station mean2006: 9.8 C, -0.2 C from the station mean2007: 9.9 C, -0.2 C from the station mean2008: 9.4 C, -0.7 C from the station mean2009: 9.8 C, -0.3 C from the station mean2010: 9.6 C, -0.5 C from the station mean2011: 9.5 C, -0.5 C from the station mean2012: 10.5 C, +0.4 C from the station mean2014: 10.5 C, +0.4 C from the station mean2015: 10.4 C, +0.4 C from the station mean2016: 10.5 C, +0.4 C from the station mean2017: 11.3 C, +1.3 C from the station mean2018: 10.7 C, +0.7 C from the station mean2019: 9.8 C, -0.2 C from the station mean2021: 10.7 C, +0.7 C from the station mean2023: 10.3 C, +0.3 C from the station mean2024: 10.4 C, +0.4 C from the station mean2025: 10.1 C, +0.1 C from the station mean198719901995200020052010201520202025
One stripe for each of 28 complete years at Lakeside Arizona, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 10.0 C (50.1 F); red stripes are warmer. The coolest year was 1992, at 8.6 C (47.5 F), and the warmest was 2017, at 11.3 C (52.4 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Lakeside Arizona as warming stripes, 1987 to 2025
YearAnnual mean temperatureDifference from the station mean
19879.8 C-0.19 C
198810.2 C+0.15 C
19909.2 C-0.79 C
19928.6 C-1.44 C
19939.5 C-0.55 C
19949.6 C-0.45 C
199510.1 C+0.05 C
199610.7 C+0.71 C
19979.8 C-0.21 C
200310.1 C+0.09 C
200510.1 C+0.03 C
20069.8 C-0.23 C
20079.9 C-0.18 C
20089.4 C-0.68 C
20099.8 C-0.27 C
20109.6 C-0.45 C
20119.5 C-0.49 C
201210.5 C+0.43 C
201410.5 C+0.42 C
201510.4 C+0.39 C
201610.5 C+0.44 C
201711.3 C+1.30 C
201810.7 C+0.70 C
20199.8 C-0.21 C
202110.7 C+0.69 C
202310.3 C+0.27 C
202410.4 C+0.39 C
202510.1 C+0.10 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1986 to 2026
Yearly extremes at Lakeside Arizona: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)202134.4 C (93.9 F)41
Coldest night (TNn)-29.4 C (-20.9 F)1990-20.0 C (-4.0 F)41

Hottest day (TXx)

Hottest day (TXx) at Lakeside Arizona by year The hottest day of the year at Lakeside Arizona, 1986 to 2026. The record is 37.2 C (99.0 F) in 2021, marked on the chart; the median year is 34.4 C (93.9 F). 102030401990200020102020Record: 37.2 C (99.0 F) in 2021
The hottest day of the year at Lakeside Arizona, 1986 to 2026. The record is 37.2 C (99.0 F) in 2021, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Lakeside Arizona by year
YearHottest day (TXx)
198635.0 C (95.0 F)
198735.0 C (95.0 F)
198832.8 C (91.0 F)
198935.6 C (96.1 F)
199035.0 C (95.0 F)
199133.9 C (93.0 F)
199232.8 C (91.0 F)
199334.4 C (93.9 F)
199435.0 C (95.0 F)
199536.1 C (97.0 F)
199635.6 C (96.1 F)
199735.6 C (96.1 F)
199836.1 C (97.0 F)
199935.0 C (95.0 F)
200033.3 C (91.9 F)
200116.7 C (62.1 F)
200234.4 C (93.9 F)
200335.6 C (96.1 F)
200432.2 C (90.0 F)
200535.0 C (95.0 F)
200633.9 C (93.0 F)
200735.6 C (96.1 F)
200832.8 C (91.0 F)
200935.6 C (96.1 F)
201035.6 C (96.1 F)
201133.3 C (91.9 F)
201233.9 C (93.0 F)
201325.6 C (78.1 F)
201432.2 C (90.0 F)
201534.4 C (93.9 F)
201635.0 C (95.0 F)
201735.6 C (96.1 F)
201834.4 C (93.9 F)
201933.3 C (91.9 F)
202034.4 C (93.9 F)
202137.2 C (99.0 F)
202235.0 C (95.0 F)
202336.1 C (97.0 F)
202434.4 C (93.9 F)
202534.4 C (93.9 F)
202634.4 C (93.9 F)

Coldest night (TNn)

Coldest night (TNn) at Lakeside Arizona by year The coldest night of the year at Lakeside Arizona, 1986 to 2026. The record is -29.4 C (-20.9 F) in 1990, marked on the chart; the median year is -20.0 C (-4.0 F). -30-25-20-15-101990200020102020Record: -29.4 C (-20.9 F) in 1990
The coldest night of the year at Lakeside Arizona, 1986 to 2026. The record is -29.4 C (-20.9 F) in 1990, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Lakeside Arizona by year
YearColdest night (TNn)
1986-15.6 C (3.9 F)
1987-23.3 C (-9.9 F)
1988-21.7 C (-7.1 F)
1989-17.8 C (0.0 F)
1990-29.4 C (-20.9 F)
1991-16.7 C (1.9 F)
1992-23.9 C (-11.0 F)
1993-22.2 C (-8.0 F)
1994-18.9 C (-2.0 F)
1995-18.3 C (-0.9 F)
1996-16.7 C (1.9 F)
1997-20.6 C (-5.1 F)
1998-20.6 C (-5.1 F)
1999-14.4 C (6.1 F)
2000-20.6 C (-5.1 F)
2001-19.4 C (-2.9 F)
2002-25.6 C (-14.1 F)
2003-20.0 C (-4.0 F)
2004-17.8 C (0.0 F)
2005-19.4 C (-2.9 F)
2006-20.0 C (-4.0 F)
2007-19.4 C (-2.9 F)
2008-21.1 C (-6.0 F)
2009-21.1 C (-6.0 F)
2010-27.2 C (-17.0 F)
2011-28.3 C (-18.9 F)
2012-18.9 C (-2.0 F)
2013-22.2 C (-8.0 F)
2014-13.3 C (8.1 F)
2015-18.9 C (-2.0 F)
2016-20.6 C (-5.1 F)
2017-17.8 C (0.0 F)
2018-16.7 C (1.9 F)
2019-21.1 C (-6.0 F)
2020-14.4 C (6.1 F)
2021-19.4 C (-2.9 F)
2022-21.1 C (-6.0 F)
2023-22.2 C (-8.0 F)
2024-21.7 C (-7.1 F)
2025-17.8 C (0.0 F)
2026-14.4 C (6.1 F)

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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Lakeside Arizona falls on 25 May and the median first autumn frost on 9 October, which leaves a median of 139 days between them.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at Lakeside Arizona
MeasureMedian, all yearsEarliest periodRecent period (1987 to 2025)Recent against earliestFitted trend
Last spring frost25 Mayn/a25 Mayn/a-3.3 days per decade
First autumn frost9 Octobern/a9 Octobern/a+0.1 days per decade
Growing days139 daysn/a139 daysn/a+3.5 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.

Download the Data

  • Data for Lakeside Arizona standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Lakeside Arizona 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).