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Built 2026-10-14 (14 October 2026)

Lyons Valley California Weather Records (USR0000CLYO)

Record envelope, standing records and threshold days for Lyons Valley California (USR0000CLYO), California, United States, with 36 years of record.

Key Facts for Lyons Valley California

  • Lyons Valley California (USR0000CLYO) is a weather station in California, United States at 39.13 latitude and -123.07 longitude, 975 m (3,200 ft) above sea level.
  • The station reports from 1988 to 2023, 36 years of record.
  • 1,464 records set at Lyons Valley California still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Lyons Valley California tied a daily record high maximum temperature of 32.2 C (90.0 F) on 8 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: California, United States, 39.13 latitude, -123.07 longitude.
  • Elevation: 975 m (3,200 ft).
  • Period of record: 1988 to 2023, 36 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

15 days at or beyond a record
Daily record high and record low at Lyons Valley California, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lyons Valley California. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Lyons Valley California. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lyons Valley California, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan25.6 C (78.1 F)-7.2 C (19.0 F)23.9 C (75.0 F)-1.1 C (30.0 F)
Feb25.0 C (77.0 F)-9.4 C (15.1 F)21.1 C (70.0 F)-3.3 C (26.1 F)
Mar31.1 C (88.0 F)-5.0 C (23.0 F)31.1 C (88.0 F)2.2 C (36.0 F)
Apr30.6 C (87.1 F)-5.0 C (23.0 F)23.3 C (73.9 F)1.1 C (34.0 F)
May33.9 C (93.0 F)-1.7 C (28.9 F)28.3 C (82.9 F)3.9 C (39.0 F)
Jun38.3 C (100.9 F)1.1 C (34.0 F)33.3 C (91.9 F)7.2 C (45.0 F)
Jul39.4 C (102.9 F)6.1 C (43.0 F)32.8 C (91.0 F)14.4 C (57.9 F)
Aug40.0 C (104.0 F)5.6 C (42.1 F)37.2 C (99.0 F)8.9 C (48.0 F)
Sep40.6 C (105.1 F)2.8 C (37.0 F)31.7 C (89.1 F)7.2 C (45.0 F)
Oct36.1 C (97.0 F)0.0 C (32.0 F)33.3 C (91.9 F)8.3 C (46.9 F)
Nov27.8 C (82.0 F)-5.0 C (23.0 F)n/an/a
Dec23.9 C (75.0 F)-11.7 C (10.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Lyons Valley California by the year they were set 1,464 records at Lyons Valley California still stand. 2008 holds the most, with 59. 02040601988: 541989: 561990: 581991: 511992: 401993: 371994: 451995: 381996: 391997: 271998: 421999: 532000: 452001: 472002: 532003: 372004: 322005: 212006: 352007: 282008: 592009: 492010: 392011: 382012: 392013: 262014: 162015: 352016: 182017: 342018: 232019: 422020: 262021: 422022: 432023: 292024: 292025: 222026: 171988199219962000200420082012201620202024
1,464 records at Lyons Valley California still stand. 2008 holds the most, with 59.
Standing records at Lyons Valley California by the year they were set
Year setStanding records
198854
198956
199058
199151
199240
199337
199445
199538
199639
199727
199842
199953
200045
200147
200253
200337
200432
200521
200635
200728
200859
200949
201039
201138
201239
201326
201416
201535
201618
201734
201823
201942
202026
202142
202243
202329
202429
202522
202617

All-Time Record Progression

2 new records
When Lyons Valley California set new all-time records 2 all-time records were set at Lyons Valley California between 6 September 2022 and 6 July 2024. Each dot is a new record. Record high minimum temperature6 September 2022: Record high minimum temperature 31.1 C (88.0 F)6 July 2024: Record high minimum temperature 32.2 C (90.0 F)2025
2 all-time records were set at Lyons Valley California between 6 September 2022 and 6 July 2024. Each dot is a new record.
When Lyons Valley California set new all-time records
DateKindDetail
2022-09-06Record high minimum temperatureRecord high minimum temperature 31.1 C (88.0 F)
2024-07-06Record high minimum temperatureRecord high minimum temperature 32.2 C (90.0 F)

Period of Record Coverage

1988 to 2026
Days with data per year at Lyons Valley California 39 years of record at Lyons Valley California, 1988 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1988, 2026. 1988: 285 of 366 days1989: 360 of 365 days1990: 359 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 352 of 365 days1994: 364 of 365 days1995: 329 of 365 days1996: 365 of 366 days1997: 362 of 365 days1998: 364 of 365 days1999: 364 of 365 days2000: 346 of 366 days2001: 345 of 365 days2002: 353 of 365 days2003: 363 of 365 days2004: 365 of 366 days2005: 335 of 365 days2006: 364 of 365 days2007: 363 of 365 days2008: 356 of 366 days2009: 363 of 365 days2010: 349 of 365 days2011: 363 of 365 days2012: 365 of 366 days2013: 359 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 362 of 366 days2017: 360 of 365 days2018: 364 of 365 days2019: 363 of 365 days2020: 364 of 366 days2021: 364 of 365 days2022: 362 of 365 days2023: 362 of 365 days2024: 365 of 366 days2025: 364 of 365 days2026: 284 of 365 days19901995200020052010201520202025
39 years of record at Lyons Valley California, 1988 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1988, 2026.
Days with data per year at Lyons Valley California
YearDays with dataShare of yearComplete
198828578%No
198936099%Yes
199035998%Yes
1991365100%Yes
1992365100%Yes
199335296%Yes
1994364100%Yes
199532990%Yes
1996365100%Yes
199736299%Yes
1998364100%Yes
1999364100%Yes
200034695%Yes
200134595%Yes
200235397%Yes
200336399%Yes
2004365100%Yes
200533592%Yes
2006364100%Yes
200736399%Yes
200835697%Yes
200936399%Yes
201034996%Yes
201136399%Yes
2012365100%Yes
201335998%Yes
2014365100%Yes
2015364100%Yes
201636299%Yes
201736099%Yes
2018364100%Yes
201936399%Yes
202036499%Yes
2021364100%Yes
202236299%Yes
202336299%Yes
2024365100%Yes
2025364100%Yes
202628478%No

Latest Records

20
Latest records at Lyons Valley California
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Lyons Valley California, USdaily high max (Tie, Provisional)32.2 C (90.0 F)tie29 years2 of 100 (Routine)
6 October 2026Lyons Valley California, USdaily high min (Tie, Provisional)25.0 C (77.0 F)tie1 year0 of 100 (Routine)
5 October 2026Lyons Valley California, USdaily high min (Provisional)25.0 C (77.0 F)1.1 C (2.0 F)12 years8 of 100 (Routine)
5 October 2026Lyons Valley California, USdaily high max (Provisional)33.3 C (91.9 F)1.1 C (2.0 F)1 year4 of 100 (Routine)
4 October 2026Lyons Valley California, USmonthly high min (Tie, Provisional)26.1 C (79.0 F)tie2 years3 of 100 (Routine)
13 September 2026Lyons Valley California, USdaily low min (Provisional)7.2 C (45.0 F)0.6 C (1.1 F)36 years14 of 100 (Routine)
12 September 2026Lyons Valley California, USdaily low min (Tie, Provisional)7.2 C (45.0 F)tie8 years1 of 100 (Routine)
3 September 2026Lyons Valley California, USdaily low max (Tie, Provisional)12.8 C (55.0 F)tie33 years3 of 100 (Routine)
8 August 2026Lyons Valley California, USdaily high min27.2 C (81.0 F)2.2 C (4.0 F)36 years17 of 100 (Routine)
8 August 2026Lyons Valley California, USdaily high max (Tie)36.7 C (98.1 F)tie24 years2 of 100 (Routine)
7 August 2026Lyons Valley California, USdaily high min (Tie)26.1 C (79.0 F)tie36 years3 of 100 (Routine)
3 August 2026Lyons Valley California, USdaily high max (Tie)37.2 C (99.0 F)tie28 years2 of 100 (Routine)
13 June 2026Lyons Valley California, USdaily high min22.8 C (73.0 F)2.2 C (4.0 F)19 years11 of 100 (Routine)
11 June 2026Lyons Valley California, USdaily high max32.8 C (91.0 F)1.1 C (2.0 F)7 years6 of 100 (Routine)
9 May 2026Lyons Valley California, USdaily high min (Tie)18.3 C (64.9 F)tie8 years1 of 100 (Routine)
28 March 2026Lyons Valley California, USdaily high min15.6 C (60.1 F)0.6 C (1.1 F)8 years6 of 100 (Routine)
28 March 2026Lyons Valley California, USdaily high max (Tie)23.9 C (75.0 F)tie24 years2 of 100 (Routine)
27 March 2026Lyons Valley California, USdaily high min16.1 C (61.0 F)3.3 C (5.9 F)4 years11 of 100 (Routine)
27 March 2026Lyons Valley California, USdaily high max (Tie)23.9 C (75.0 F)tie32 years3 of 100 (Routine)
20 March 2026Lyons Valley California, USmonthly high max31.1 C (88.0 F)2.8 C (5.0 F)0 years17 of 100 (Routine)

Climate Trend

31 complete years, 1989 to 2025
Annual mean temperature at Lyons Valley California as warming stripes, 1989 to 2025 One stripe for each of 31 complete years at Lyons Valley California, 1989 to 2025. Blue stripes are years cooler than the station's own mean of 14.0 C (57.2 F); red stripes are warmer. The coolest year was 1998, at 12.5 C (54.4 F), and the warmest was 2015, at 15.3 C (59.5 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1989: 13.8 C, -0.2 C from the station mean1990: 13.4 C, -0.6 C from the station mean1991: 14.4 C, +0.4 C from the station mean1992: 14.9 C, +0.9 C from the station mean1993: 13.0 C, -1.0 C from the station mean1994: 13.7 C, -0.3 C from the station mean1996: 14.5 C, +0.5 C from the station mean1997: 13.7 C, -0.3 C from the station mean1998: 12.5 C, -1.6 C from the station mean1999: 13.7 C, -0.3 C from the station mean2003: 13.8 C, -0.2 C from the station mean2004: 14.0 C, 0.0 C from the station mean2006: 13.6 C, -0.4 C from the station mean2007: 13.6 C, -0.4 C from the station mean2008: 12.9 C, -1.1 C from the station mean2009: 13.5 C, -0.5 C from the station mean2011: 12.9 C, -1.1 C from the station mean2012: 13.8 C, -0.2 C from the station mean2013: 14.5 C, +0.5 C from the station mean2014: 15.1 C, +1.1 C from the station mean2015: 15.3 C, +1.3 C from the station mean2016: 14.0 C, 0.0 C from the station mean2017: 14.5 C, +0.5 C from the station mean2018: 14.5 C, +0.5 C from the station mean2019: 13.4 C, -0.6 C from the station mean2020: 15.1 C, +1.1 C from the station mean2021: 14.8 C, +0.8 C from the station mean2022: 14.5 C, +0.5 C from the station mean2023: 13.4 C, -0.6 C from the station mean2024: 14.5 C, +0.5 C from the station mean2025: 14.9 C, +0.9 C from the station mean19891995200020052010201520202025
One stripe for each of 31 complete years at Lyons Valley California, 1989 to 2025. Blue stripes are years cooler than the station's own mean of 14.0 C (57.2 F); red stripes are warmer. The coolest year was 1998, at 12.5 C (54.4 F), and the warmest was 2015, at 15.3 C (59.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Lyons Valley California as warming stripes, 1989 to 2025
YearAnnual mean temperatureDifference from the station mean
198913.8 C-0.23 C
199013.4 C-0.60 C
199114.4 C+0.40 C
199214.9 C+0.92 C
199313.0 C-0.97 C
199413.7 C-0.33 C
199614.5 C+0.50 C
199713.7 C-0.27 C
199812.5 C-1.55 C
199913.7 C-0.31 C
200313.8 C-0.19 C
200414.0 C+0.01 C
200613.6 C-0.41 C
200713.6 C-0.38 C
200812.9 C-1.13 C
200913.5 C-0.47 C
201112.9 C-1.08 C
201213.8 C-0.21 C
201314.5 C+0.54 C
201415.1 C+1.08 C
201515.3 C+1.27 C
201614.0 C+0.01 C
201714.5 C+0.52 C
201814.5 C+0.48 C
201913.4 C-0.57 C
202015.1 C+1.07 C
202114.8 C+0.77 C
202214.5 C+0.46 C
202313.4 C-0.63 C
202414.5 C+0.48 C
202514.9 C+0.90 C

The annual mean temperature here has risen by 0.23 C (0.01 to 0.45) per decade over 1989 to 2025. In Fahrenheit: 0.41 F (0.01 to 0.81) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Lyons Valley California
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.23 C (0.01 to 0.45) per decade0.41 F (0.01 to 0.81) per decade1989 to 202531Rise
Mean daily maximum-0.02 C (-0.27 to 0.23) per decade-0.03 F (-0.48 to 0.42) per decade1989 to 202531Not clearly different from zero
Mean daily minimum0.5 C (0.3 to 0.7) per decade0.9 F (0.5 to 1.3) per decade1989 to 202531Rise

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

1988 to 2026
Yearly extremes at Lyons Valley California: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)199837.2 C (99.0 F)39
Coldest night (TNn)-11.7 C (10.9 F)1990-3.9 C (25.0 F)39

Hottest day (TXx)

Hottest day (TXx) at Lyons Valley California by year The hottest day of the year at Lyons Valley California, 1988 to 2026. The record is 40.6 C (105.1 F) in 1998, marked on the chart; the median year is 37.2 C (99.0 F). 3234363840421990200020102020Record: 40.6 C (105.1 F) in 1998
The hottest day of the year at Lyons Valley California, 1988 to 2026. The record is 40.6 C (105.1 F) in 1998, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Lyons Valley California by year
YearHottest day (TXx)
198838.3 C (100.9 F)
198932.8 C (91.0 F)
199040.0 C (104.0 F)
199137.8 C (100.0 F)
199237.2 C (99.0 F)
199337.2 C (99.0 F)
199437.2 C (99.0 F)
199536.1 C (97.0 F)
199637.2 C (99.0 F)
199737.8 C (100.0 F)
199840.6 C (105.1 F)
199937.2 C (99.0 F)
200037.8 C (100.0 F)
200138.3 C (100.9 F)
200239.4 C (102.9 F)
200338.9 C (102.0 F)
200435.0 C (95.0 F)
200536.7 C (98.1 F)
200638.9 C (102.0 F)
200738.3 C (100.9 F)
200835.0 C (95.0 F)
200936.1 C (97.0 F)
201038.3 C (100.9 F)
201135.0 C (95.0 F)
201238.9 C (102.0 F)
201338.3 C (100.9 F)
201435.6 C (96.1 F)
201536.1 C (97.0 F)
201636.1 C (97.0 F)
201738.3 C (100.9 F)
201836.1 C (97.0 F)
201933.9 C (93.0 F)
202037.8 C (100.0 F)
202136.1 C (97.0 F)
202240.0 C (104.0 F)
202336.1 C (97.0 F)
202438.9 C (102.0 F)
202535.0 C (95.0 F)
202637.2 C (99.0 F)

Coldest night (TNn)

Coldest night (TNn) at Lyons Valley California by year The coldest night of the year at Lyons Valley California, 1988 to 2026. The record is -11.7 C (10.9 F) in 1990, marked on the chart; the median year is -3.9 C (25.0 F). -15-10-501990200020102020Record: -11.7 C (10.9 F) in 1990
The coldest night of the year at Lyons Valley California, 1988 to 2026. The record is -11.7 C (10.9 F) in 1990, marked on the chart; the median year is -3.9 C (25.0 F).
Coldest night (TNn) at Lyons Valley California by year
YearColdest night (TNn)
1988-4.4 C (24.1 F)
1989-9.4 C (15.1 F)
1990-11.7 C (10.9 F)
1991-3.3 C (26.1 F)
1992-3.3 C (26.1 F)
1993-3.9 C (25.0 F)
1994-3.9 C (25.0 F)
1995-2.2 C (28.0 F)
1996-4.4 C (24.1 F)
1997-5.6 C (21.9 F)
1998-6.1 C (21.0 F)
1999-3.9 C (25.0 F)
2000-2.8 C (27.0 F)
2001-4.4 C (24.1 F)
2002-7.2 C (19.0 F)
2003-2.8 C (27.0 F)
2004-3.3 C (26.1 F)
2005-1.7 C (28.9 F)
2006-5.0 C (23.0 F)
2007-4.4 C (24.1 F)
2008-5.0 C (23.0 F)
2009-4.4 C (24.1 F)
2010-4.4 C (24.1 F)
2011-6.7 C (19.9 F)
2012-4.4 C (24.1 F)
2013-5.0 C (23.0 F)
2014-1.1 C (30.0 F)
2015-2.2 C (28.0 F)
2016-2.8 C (27.0 F)
2017-3.3 C (26.1 F)
2018-5.6 C (21.9 F)
2019-3.3 C (26.1 F)
2020-2.8 C (27.0 F)
2021-3.9 C (25.0 F)
2022-2.8 C (27.0 F)
2023-5.0 C (23.0 F)
2024-2.8 C (27.0 F)
2025-2.2 C (28.0 F)
2026-3.3 C (26.1 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Lyons Valley California falls on 19 April and the median first autumn frost on 29 November, which leaves a median of 223 days between them.

Fitted over all years, the growing season changes by -8.2 days per decade at this station.

Frost dates and growing season at Lyons Valley California
MeasureMedian, all yearsEarliest periodRecent period (1989 to 2024)Recent against earliestFitted trend
Last spring frost19 Apriln/a19 Apriln/a+6.7 days per decade
First autumn frost29 Novembern/a29 Novembern/a-1.4 days per decade
Growing days223 daysn/a223 daysn/a-8.2 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 Lyons Valley California standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Lyons Valley California 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).