Daily records
Page built 2026-10-15
Data as of 2026-10-14
Search
Built 2026-10-15 (15 October 2026)

Bull Flat California Weather Records (USR0000CBUL)

Record envelope, standing records and threshold days for Bull Flat California (USR0000CBUL), California, United States, with 33 years of record.

Key Facts for Bull Flat California

  • Bull Flat California (USR0000CBUL) is a weather station in California, United States at 40.48 latitude and -120.11 longitude, 1,340 m (4,395 ft) above sea level.
  • The station reports from 1991 to 2023, 33 years of record.
  • 1,464 records set at Bull Flat California still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Bull Flat California set a daily record high minimum temperature of 10.0 C (50.0 F) on 10 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, 40.48 latitude, -120.11 longitude.
  • Elevation: 1,340 m (4,395 ft).
  • Period of record: 1991 to 2023, 33 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

22 days at or beyond a record
Daily record high and record low at Bull Flat California, with 2026 drawn through them The band shows the record high and record low for each calendar day at Bull Flat California. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Bull Flat California. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Bull Flat California, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.9 C (64.2 F)-25.6 C (-14.1 F)13.9 C (57.0 F)-12.8 C (9.0 F)
Feb20.0 C (68.0 F)-23.9 C (-11.0 F)17.2 C (63.0 F)-15.0 C (5.0 F)
Mar28.3 C (82.9 F)-21.7 C (-7.1 F)28.3 C (82.9 F)-5.6 C (21.9 F)
Apr29.4 C (84.9 F)-13.3 C (8.1 F)22.8 C (73.0 F)-8.3 C (17.1 F)
May35.0 C (95.0 F)-8.9 C (16.0 F)31.1 C (88.0 F)-2.8 C (27.0 F)
Jun39.2 C (102.6 F)-3.9 C (25.0 F)35.6 C (96.1 F)0.6 C (33.1 F)
Jul43.9 C (111.0 F)0.0 C (32.0 F)36.1 C (97.0 F)1.7 C (35.1 F)
Aug38.9 C (102.0 F)-3.3 C (26.1 F)37.8 C (100.0 F)5.0 C (41.0 F)
Sep38.9 C (102.0 F)-7.2 C (19.0 F)31.7 C (89.1 F)0.0 C (32.0 F)
Oct34.4 C (93.9 F)-13.3 C (8.1 F)31.7 C (89.1 F)5.0 C (41.0 F)
Nov23.3 C (73.9 F)-21.7 C (-7.1 F)n/an/a
Dec17.2 C (63.0 F)-28.9 C (-20.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Bull Flat California by the year they were set 1,464 records at Bull Flat California still stand. 1995 holds the most, with 63. 0204060801991: 51992: 531993: 571994: 361995: 631996: 531997: 281998: 461999: 432000: 392001: 432002: 522003: 402004: 382005: 362006: 312007: 362008: 532009: 362010: 412011: 372012: 392013: 532014: 372015: 382016: 292017: 522018: 282019: 352020: 262021: 522022: 512023: 452024: 502025: 432026: 20199119951999200320072011201520192023
1,464 records at Bull Flat California still stand. 1995 holds the most, with 63.
Standing records at Bull Flat California by the year they were set
Year setStanding records
19915
199253
199357
199436
199563
199653
199728
199846
199943
200039
200143
200252
200340
200438
200536
200631
200736
200853
200936
201041
201137
201239
201353
201437
201538
201629
201752
201828
201935
202026
202152
202251
202345
202450
202543
202620

Period of Record Coverage

1991 to 2026
Days with data per year at Bull Flat California 36 years of record at Bull Flat California, 1991 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1991, 2020, 2026. 1991: 78 of 365 days1992: 366 of 366 days1993: 354 of 365 days1994: 363 of 365 days1995: 363 of 365 days1996: 365 of 366 days1997: 363 of 365 days1998: 350 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 364 of 365 days2014: 365 of 365 days2015: 348 of 365 days2016: 363 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 245 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days1995200020052010201520202025
36 years of record at Bull Flat California, 1991 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1991, 2020, 2026.
Days with data per year at Bull Flat California
YearDays with dataShare of yearComplete
19917821%No
1992366100%Yes
199335497%Yes
199436399%Yes
199536399%Yes
1996365100%Yes
199736399%Yes
199835096%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006364100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013364100%Yes
2014365100%Yes
201534895%Yes
201636399%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
202024567%No
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Bull Flat California
DateStationRecordValueBeat old record byOld record stoodSignificance
10 October 2026Bull Flat California, USdaily high min (Provisional)10.0 C (50.0 F)1.1 C (2.0 F)15 years9 of 100 (Routine)
8 October 2026Bull Flat California, USdaily high max (Tie, Provisional)31.1 C (88.0 F)tie29 years2 of 100 (Routine)
6 October 2026Bull Flat California, USdaily high max (Tie, Provisional)30.0 C (86.0 F)tie29 years2 of 100 (Routine)
5 October 2026Bull Flat California, USdaily high max (Provisional)30.0 C (86.0 F)1.1 C (2.0 F)1 year4 of 100 (Routine)
4 October 2026Bull Flat California, USdaily high max (Provisional)30.6 C (87.1 F)1.2 C (2.2 F)5 years6 of 100 (Routine)
3 October 2026Bull Flat California, USdaily high max (Tie, Provisional)31.7 C (89.1 F)tie24 years2 of 100 (Routine)
4 September 2026Bull Flat California, USdaily low max (Provisional)17.8 C (64.0 F)1.1 C (2.0 F)25 years12 of 100 (Routine)
28 August 2026Bull Flat California, USdaily high min (Tie, Provisional)13.3 C (55.9 F)tie8 years1 of 100 (Routine)
8 August 2026Bull Flat California, USdaily high max (Tie)37.8 C (100.0 F)tie24 years2 of 100 (Routine)
28 July 2026Bull Flat California, USdaily low min (Tie)5.6 C (42.1 F)tie17 years2 of 100 (Routine)
27 July 2026Bull Flat California, USdaily low min5.0 C (41.0 F)1.1 C (2.0 F)31 years15 of 100 (Routine)
20 July 2026Bull Flat California, USdaily high min21.7 C (71.1 F)2.3 C (4.1 F)23 years15 of 100 (Routine)
28 June 2026Bull Flat California, USdaily low max20.0 C (68.0 F)2.2 C (4.0 F)15 years10 of 100 (Routine)
16 June 2026Bull Flat California, USdaily high max35.6 C (96.1 F)1.9 C (3.4 F)4 years7 of 100 (Routine)
15 June 2026Bull Flat California, USdaily high max35.0 C (95.0 F)2.2 C (4.0 F)25 years13 of 100 (Routine)
13 June 2026Bull Flat California, USdaily high min13.3 C (55.9 F)0.5 C (0.9 F)3 years4 of 100 (Routine)
19 May 2026Bull Flat California, USdaily low min (Tie)-2.8 C (27.0 F)tie21 years2 of 100 (Routine)
12 May 2026Bull Flat California, USdaily high max30.6 C (87.1 F)0.6 C (1.1 F)28 years12 of 100 (Routine)
10 May 2026Bull Flat California, USdaily high max31.1 C (88.0 F)1.7 C (3.1 F)24 years12 of 100 (Routine)
1 May 2026Bull Flat California, USdaily high min7.2 C (45.0 F)1.6 C (2.9 F)31 years16 of 100 (Routine)

Climate Trend

32 complete years, 1992 to 2025
Annual mean temperature at Bull Flat California as warming stripes, 1992 to 2025 One stripe for each of 32 complete years at Bull Flat California, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1993, at 8.0 C (46.4 F), and the warmest was 2014, at 10.6 C (51.1 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1992: 10.1 C, +0.8 C from the station mean1993: 8.0 C, -1.3 C from the station mean1994: 8.9 C, -0.4 C from the station mean1995: 9.4 C, +0.1 C from the station mean1996: 9.5 C, +0.2 C from the station mean1997: 8.9 C, -0.4 C from the station mean1998: 8.2 C, -1.1 C from the station mean1999: 8.8 C, -0.5 C from the station mean2000: 9.2 C, -0.1 C from the station mean2001: 9.6 C, +0.3 C from the station mean2002: 9.3 C, 0.0 C from the station mean2003: 9.5 C, +0.2 C from the station mean2004: 9.3 C, 0.0 C from the station mean2005: 8.7 C, -0.6 C from the station mean2006: 9.0 C, -0.3 C from the station mean2007: 8.9 C, -0.4 C from the station mean2008: 9.0 C, -0.3 C from the station mean2009: 9.1 C, -0.2 C from the station mean2010: 9.3 C, 0.0 C from the station mean2011: 8.5 C, -0.8 C from the station mean2012: 9.8 C, +0.5 C from the station mean2013: 8.9 C, -0.4 C from the station mean2014: 10.6 C, +1.3 C from the station mean2016: 9.9 C, +0.6 C from the station mean2017: 9.8 C, +0.5 C from the station mean2018: 9.3 C, 0.0 C from the station mean2019: 8.8 C, -0.5 C from the station mean2021: 10.2 C, +0.9 C from the station mean2022: 9.4 C, +0.1 C from the station mean2023: 9.0 C, -0.3 C from the station mean2024: 10.0 C, +0.7 C from the station mean2025: 10.5 C, +1.2 C from the station mean19921995200020052010201520202025
One stripe for each of 32 complete years at Bull Flat California, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.7 F); red stripes are warmer. The coolest year was 1993, at 8.0 C (46.4 F), and the warmest was 2014, at 10.6 C (51.1 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Bull Flat California as warming stripes, 1992 to 2025
YearAnnual mean temperatureDifference from the station mean
199210.1 C+0.83 C
19938.0 C-1.29 C
19948.9 C-0.40 C
19959.4 C+0.10 C
19969.5 C+0.18 C
19978.9 C-0.35 C
19988.2 C-1.12 C
19998.8 C-0.47 C
20009.2 C-0.10 C
20019.6 C+0.26 C
20029.3 C+0.02 C
20039.5 C+0.25 C
20049.3 C-0.03 C
20058.7 C-0.60 C
20069.0 C-0.28 C
20078.9 C-0.35 C
20089.0 C-0.25 C
20099.1 C-0.16 C
20109.3 C0.00 C
20118.5 C-0.82 C
20129.8 C+0.52 C
20138.9 C-0.40 C
201410.6 C+1.34 C
20169.9 C+0.56 C
20179.8 C+0.46 C
20189.3 C-0.03 C
20198.8 C-0.49 C
202110.2 C+0.89 C
20229.4 C+0.12 C
20239.0 C-0.29 C
202410.0 C+0.71 C
202510.5 C+1.22 C

The annual mean temperature here has risen by 0.25 C (0.04 to 0.46) per decade over 1992 to 2025. In Fahrenheit: 0.5 F (0.1 to 0.8) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Bull Flat California
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.25 C (0.04 to 0.46) per decade0.5 F (0.1 to 0.8) per decade1992 to 202532Rise
Mean daily maximum0.26 C (-0.02 to 0.54) per decade0.47 F (-0.03 to 0.96) per decade1992 to 202532Not clearly different from zero
Mean daily minimum0.24 C (0.00 to 0.48) per decade0.43 F (-0.01 to 0.86) per decade1992 to 202532Not clearly different from zero

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

1991 to 2026
Yearly extremes at Bull Flat California: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)200238.3 C (100.9 F)36
Coldest night (TNn)-28.9 C (-20.0 F)1998-19.4 C (-2.9 F)36

Hottest day (TXx)

Hottest day (TXx) at Bull Flat California by year The hottest day of the year at Bull Flat California, 1991 to 2026. The record is 43.9 C (111.0 F) in 2002, marked on the chart; the median year is 38.3 C (100.9 F). 2530354045200020102020Record: 43.9 C (111.0 F) in 2002
The hottest day of the year at Bull Flat California, 1991 to 2026. The record is 43.9 C (111.0 F) in 2002, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Bull Flat California by year
YearHottest day (TXx)
199128.3 C (82.9 F)
199237.8 C (100.0 F)
199336.7 C (98.1 F)
199438.3 C (100.9 F)
199536.1 C (97.0 F)
199637.8 C (100.0 F)
199737.8 C (100.0 F)
199838.3 C (100.9 F)
199938.9 C (102.0 F)
200038.3 C (100.9 F)
200137.8 C (100.0 F)
200243.9 C (111.0 F)
200341.7 C (107.1 F)
200437.2 C (99.0 F)
200538.3 C (100.9 F)
200638.3 C (100.9 F)
200741.1 C (106.0 F)
200838.9 C (102.0 F)
200937.8 C (100.0 F)
201038.3 C (100.9 F)
201137.2 C (99.0 F)
201237.2 C (99.0 F)
201340.0 C (104.0 F)
201438.9 C (102.0 F)
201538.3 C (100.9 F)
201638.3 C (100.9 F)
201738.9 C (102.0 F)
201838.3 C (100.9 F)
201935.6 C (96.1 F)
202038.9 C (102.0 F)
202139.3 C (102.7 F)
202239.6 C (103.3 F)
202338.9 C (102.0 F)
202439.1 C (102.4 F)
202538.9 C (102.0 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Bull Flat California by year The coldest night of the year at Bull Flat California, 1991 to 2026. The record is -28.9 C (-20.0 F) in 1998, marked on the chart; the median year is -19.4 C (-2.9 F). -30-25-20-15-10200020102020Record: -28.9 C (-20.0 F) in 1998
The coldest night of the year at Bull Flat California, 1991 to 2026. The record is -28.9 C (-20.0 F) in 1998, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Bull Flat California by year
YearColdest night (TNn)
1991-16.7 C (1.9 F)
1992-20.6 C (-5.1 F)
1993-25.6 C (-14.1 F)
1994-19.4 C (-2.9 F)
1995-18.9 C (-2.0 F)
1996-16.7 C (1.9 F)
1997-19.4 C (-2.9 F)
1998-28.9 C (-20.0 F)
1999-14.4 C (6.1 F)
2000-16.1 C (3.0 F)
2001-17.8 C (0.0 F)
2002-21.7 C (-7.1 F)
2003-20.0 C (-4.0 F)
2004-23.3 C (-9.9 F)
2005-22.2 C (-8.0 F)
2006-20.0 C (-4.0 F)
2007-22.8 C (-9.0 F)
2008-23.9 C (-11.0 F)
2009-28.3 C (-18.9 F)
2010-18.9 C (-2.0 F)
2011-23.9 C (-11.0 F)
2012-21.7 C (-7.1 F)
2013-28.3 C (-18.9 F)
2014-13.3 C (8.1 F)
2015-16.7 C (1.9 F)
2016-17.2 C (1.0 F)
2017-15.6 C (3.9 F)
2018-17.2 C (1.0 F)
2019-16.1 C (3.0 F)
2020-13.3 C (8.1 F)
2021-21.7 C (-7.1 F)
2022-20.6 C (-5.1 F)
2023-15.6 C (3.9 F)
2024-21.3 C (-6.3 F)
2025-14.5 C (5.9 F)
2026-15.0 C (5.0 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

32 years with a frost

Across 32 years with a frost, the median last spring frost at Bull Flat California falls on 11 June and the median first autumn frost on 18 September, which leaves a median of 100 days between them.

Fitted over all years, the growing season changes by -2.0 days per decade at this station.

Frost dates and growing season at Bull Flat California
MeasureMedian, all yearsEarliest periodRecent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost11 Junen/a12 Junen/a+6.1 days per decade
First autumn frost18 Septembern/a17 Septembern/a+4.0 days per decade
Growing days100 daysn/a99 daysn/a-2.0 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 Bull Flat California standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Bull Flat 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).