Built 2026-10-18 (18 October 2026)

Brantley Dam Weather Records (USC00291153)

Record envelope, standing records and threshold days for Brantley Dam (USC00291153), New Mexico, United States, with 40 years of record.

Key Facts for Brantley Dam

  • Brantley Dam (USC00291153) is a weather station in New Mexico, United States at 32.52 latitude and -104.38 longitude, 979 m (3,213 ft) above sea level.
  • The station reports from 1987 to 2026, 40 years of record.
  • 1,464 records set at Brantley Dam still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Brantley Dam set a daily record precipitation of 27.9 mm (1.1 in) on 25 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: New Mexico, United States, 32.52 latitude, -104.38 longitude.
  • Elevation: 979 m (3,213 ft).
  • Period of record: 1987 to 2026, 40 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

25 days at or beyond a record
Daily record high and record low at Brantley Dam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Brantley Dam. The lines show the 2026 daily maximum and minimum. 25 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 Brantley Dam. The lines show the 2026 daily maximum and minimum. 25 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Brantley Dam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan28.3 C (82.9 F)-19.4 C (-2.9 F)22.2 C (72.0 F)-19.4 C (-2.9 F)
Feb31.1 C (88.0 F)-21.1 C (-6.0 F)31.1 C (88.0 F)-4.4 C (24.1 F)
Mar37.2 C (99.0 F)-10.6 C (12.9 F)37.2 C (99.0 F)-1.7 C (28.9 F)
Apr38.3 C (100.9 F)-2.2 C (28.0 F)33.3 C (91.9 F)3.9 C (39.0 F)
May42.8 C (109.0 F)1.7 C (35.1 F)37.2 C (99.0 F)8.3 C (46.9 F)
Jun46.7 C (116.1 F)10.6 C (51.1 F)40.6 C (105.1 F)16.1 C (61.0 F)
Jul44.4 C (111.9 F)8.9 C (48.0 F)41.1 C (106.0 F)18.9 C (66.0 F)
Aug43.3 C (109.9 F)11.1 C (52.0 F)40.6 C (105.1 F)18.9 C (66.0 F)
Sep40.0 C (104.0 F)4.4 C (39.9 F)40.0 C (104.0 F)15.6 C (60.1 F)
Oct37.8 C (100.0 F)-7.8 C (18.0 F)27.8 C (82.0 F)12.8 C (55.0 F)
Nov31.7 C (89.1 F)-11.7 C (10.9 F)n/an/a
Dec28.3 C (82.9 F)-17.2 C (1.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Brantley Dam by the year they were set 1,464 records at Brantley Dam still stand. 1989 holds the most, with 62. 0204060801987: 291988: 331989: 621990: 621991: 361992: 371993: 231994: 371995: 481996: 551997: 411998: 411999: 272000: 482001: 262002: 312003: 342004: 452005: 332006: 462007: 432008: 282009: 272010: 272011: 472012: 162015: 112016: 372017: 472018: 382019: 452020: 522021: 542022: 412023: 382024: 422025: 482026: 291987199119951999200320072011201720212025
1,464 records at Brantley Dam still stand. 1989 holds the most, with 62.
Standing records at Brantley Dam by the year they were set
Year setStanding records
198729
198833
198962
199062
199136
199237
199323
199437
199548
199655
199741
199841
199927
200048
200126
200231
200334
200445
200533
200646
200743
200828
200927
201027
201147
201216
201511
201637
201747
201838
201945
202052
202154
202241
202338
202442
202548
202629

Wettest Day of Each Month

Apr: 114.3 mm (4.5 in)
Record daily precipitation for each month at Brantley Dam The wettest day on record for each calendar month at Brantley Dam. The most was 114.3 mm (4.5 in) on 4 April 2004. 050100150 Jan: 15.2 mm (0.6 in), 17 January 1991 Jan Feb: 22.1 mm (0.9 in), 17 February 1989 Feb Mar: 34.8 mm (1.4 in), 4 March 2020 Mar Apr: 114.3 mm (4.5 in), 4 April 2004 Apr May: 76.2 mm (3.0 in), 10 May 1994 May Jun: 71.4 mm (2.8 in), 30 June 2021 Jun Jul: 59.7 mm (2.4 in), 20 July 1988 Jul Aug: 80.0 mm (3.1 in), 21 August 2022 Aug Sep: 78.2 mm (3.1 in), 8 September 2016 Sep Oct: 72.9 mm (2.9 in), 1 October 2019 Oct Nov: 37.3 mm (1.5 in), 4 November 2000 Nov Dec: 26.7 mm (1.1 in), 23 December 1997 Dec
The wettest day on record for each calendar month at Brantley Dam. The most was 114.3 mm (4.5 in) on 4 April 2004.
Record daily precipitation for each month at Brantley Dam
MonthRecord daily precipitation (mm)Date
Jan15.2 mm (0.6 in)17 January 1991
Feb22.1 mm (0.9 in)17 February 1989
Mar34.8 mm (1.4 in)4 March 2020
Apr114.3 mm (4.5 in)4 April 2004
May76.2 mm (3.0 in)10 May 1994
Jun71.4 mm (2.8 in)30 June 2021
Jul59.7 mm (2.4 in)20 July 1988
Aug80.0 mm (3.1 in)21 August 2022
Sep78.2 mm (3.1 in)8 September 2016
Oct72.9 mm (2.9 in)1 October 2019
Nov37.3 mm (1.5 in)4 November 2000
Dec26.7 mm (1.1 in)23 December 1997

Period of Record Coverage

1987 to 2026
Days with data per year at Brantley Dam 38 years of record at Brantley Dam, 1987 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1987, 2006, 2008, 2012, 2015, 2026. 1987: 115 of 365 days1988: 360 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 363 of 365 days1992: 363 of 366 days1993: 354 of 365 days1994: 359 of 365 days1995: 358 of 365 days1996: 356 of 366 days1997: 358 of 365 days1998: 361 of 365 days1999: 356 of 365 days2000: 359 of 366 days2001: 358 of 365 days2002: 360 of 365 days2003: 364 of 365 days2004: 364 of 366 days2005: 334 of 365 days2006: 302 of 365 days2007: 365 of 365 days2008: 304 of 366 days2009: 336 of 365 days2010: 363 of 365 days2011: 365 of 365 days2012: 184 of 366 days2015: 92 of 365 days2016: 357 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 364 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 364 of 365 days2026: 262 of 365 days19901995200020052010201520202025
38 years of record at Brantley Dam, 1987 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1987, 2006, 2008, 2012, 2015, 2026.
Days with data per year at Brantley Dam
YearDays with dataShare of yearComplete
198711532%No
198836098%Yes
1989364100%Yes
1990364100%Yes
199136399%Yes
199236399%Yes
199335497%Yes
199435998%Yes
199535898%Yes
199635697%Yes
199735898%Yes
199836199%Yes
199935698%Yes
200035998%Yes
200135898%Yes
200236099%Yes
2003364100%Yes
200436499%Yes
200533492%Yes
200630283%No
2007365100%Yes
200830483%No
200933692%Yes
201036399%Yes
2011365100%Yes
201218450%No
20159225%No
201635798%Yes
2017365100%Yes
2018365100%Yes
2019364100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025364100%Yes
202626272%No

Latest Records

20
Latest records at Brantley Dam
DateStationRecordValueBeat old record byOld record stoodSignificance
25 September 2026Brantley Dam, USdaily rain (Provisional)27.9 mm (1.1 in)17.7 mm (0.7 in)8 years20 of 100 (Routine)
24 September 2026Brantley Dam, USdaily rain (Provisional)45.7 mm (1.8 in)39.1 mm (1.5 in)32 years45 of 100 (Notable)
19 September 2026Brantley Dam, USdaily high min (Tie, Provisional)20.6 C (69.1 F)tie21 years2 of 100 (Routine)
17 September 2026Brantley Dam, USdaily high min (Provisional)20.0 C (68.0 F)0.6 C (1.1 F)28 years13 of 100 (Routine)
14 September 2026Brantley Dam, USdaily high max (Provisional)38.9 C (102.0 F)1.7 C (3.1 F)28 years15 of 100 (Routine)
14 September 2026Brantley Dam, USdaily high min (Provisional)21.1 C (70.0 F)0.5 C (0.9 F)24 years12 of 100 (Routine)
13 September 2026Brantley Dam, USdaily high min (Provisional)22.2 C (72.0 F)2.8 C (5.0 F)24 years19 of 100 (Routine)
13 September 2026Brantley Dam, USmonthly high max (Tie, Provisional)40.0 C (104.0 F)tie26 years5 of 100 (Routine)
12 September 2026Brantley Dam, USdaily high max (Provisional)38.3 C (100.9 F)2.2 C (4.0 F)25 years16 of 100 (Routine)
12 September 2026Brantley Dam, USdaily high min (Provisional)20.6 C (69.1 F)0.6 C (1.1 F)32 years14 of 100 (Routine)
10 September 2026Brantley Dam, USdaily high min (Provisional)22.8 C (73.0 F)1.7 C (3.1 F)35 years19 of 100 (Routine)
9 September 2026Brantley Dam, USdaily high min (Provisional)22.8 C (73.0 F)1.1 C (2.0 F)35 years17 of 100 (Routine)
8 September 2026Brantley Dam, USdaily high min (Provisional)21.7 C (71.1 F)0.6 C (1.1 F)19 years10 of 100 (Routine)
7 September 2026Brantley Dam, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)24 years14 of 100 (Routine)
6 September 2026Brantley Dam, USdaily high min (Provisional)22.2 C (72.0 F)1.6 C (2.9 F)35 years18 of 100 (Routine)
5 September 2026Brantley Dam, USdaily high min (Provisional)22.2 C (72.0 F)2.2 C (4.0 F)35 years20 of 100 (Routine)
4 September 2026Brantley Dam, USdaily high min (Provisional)22.2 C (72.0 F)1.6 C (2.9 F)4 years9 of 100 (Routine)
4 September 2026Brantley Dam, USdaily high max (Tie, Provisional)38.9 C (102.0 F)tie33 years3 of 100 (Routine)
3 September 2026Brantley Dam, USdaily high min (Provisional)22.2 C (72.0 F)1.6 C (2.9 F)4 years9 of 100 (Routine)
2 September 2026Brantley Dam, USdaily high min (Provisional)22.8 C (73.0 F)2.2 C (4.0 F)7 years12 of 100 (Routine)

Climate Trend

28 complete years, 1988 to 2025
Annual mean temperature at Brantley Dam as warming stripes, 1988 to 2025 One stripe for each of 28 complete years at Brantley Dam, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 17.4 C (63.3 F); red stripes are warmer. The coolest year was 1988, at 16.3 C (61.3 F), and the warmest was 2024, at 18.4 C (65.2 F). The strongest colour marks a difference of 1.2 C (2.2 F). 1988: 16.3 C, -1.1 C from the station mean1989: 16.8 C, -0.6 C from the station mean1990: 16.7 C, -0.7 C from the station mean1991: 17.3 C, -0.1 C from the station mean1994: 17.5 C, +0.1 C from the station mean1995: 17.6 C, +0.3 C from the station mean1996: 17.6 C, +0.2 C from the station mean1997: 16.4 C, -1.0 C from the station mean1998: 18.0 C, +0.7 C from the station mean1999: 17.9 C, +0.5 C from the station mean2000: 18.0 C, +0.6 C from the station mean2001: 17.9 C, +0.5 C from the station mean2002: 17.6 C, +0.3 C from the station mean2003: 17.8 C, +0.4 C from the station mean2004: 16.3 C, -1.1 C from the station mean2007: 16.3 C, -1.1 C from the station mean2010: 16.6 C, -0.8 C from the station mean2011: 17.5 C, +0.1 C from the station mean2016: 17.5 C, +0.1 C from the station mean2017: 18.2 C, +0.8 C from the station mean2018: 17.3 C, 0.0 C from the station mean2019: 17.4 C, +0.1 C from the station mean2020: 17.7 C, +0.4 C from the station mean2021: 17.0 C, -0.4 C from the station mean2022: 16.9 C, -0.5 C from the station mean2023: 18.0 C, +0.6 C from the station mean2024: 18.4 C, +1.0 C from the station mean2025: 18.0 C, +0.6 C from the station mean19881995200020052010201520202025
One stripe for each of 28 complete years at Brantley Dam, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 17.4 C (63.3 F); red stripes are warmer. The coolest year was 1988, at 16.3 C (61.3 F), and the warmest was 2024, at 18.4 C (65.2 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Brantley Dam as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
198816.3 C-1.10 C
198916.8 C-0.56 C
199016.7 C-0.70 C
199117.3 C-0.10 C
199417.5 C+0.12 C
199517.6 C+0.26 C
199617.6 C+0.22 C
199716.4 C-0.99 C
199818.0 C+0.66 C
199917.9 C+0.50 C
200018.0 C+0.61 C
200117.9 C+0.48 C
200217.6 C+0.26 C
200317.8 C+0.44 C
200416.3 C-1.08 C
200716.3 C-1.10 C
201016.6 C-0.75 C
201117.5 C+0.08 C
201617.5 C+0.09 C
201718.2 C+0.83 C
201817.3 C-0.03 C
201917.4 C+0.07 C
202017.7 C+0.36 C
202117.0 C-0.35 C
202216.9 C-0.50 C
202318.0 C+0.64 C
202418.4 C+1.05 C
202518.0 C+0.61 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

1987 to 2026
Yearly extremes at Brantley Dam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.7 C (116.1 F)199442.8 C (109.0 F)38
Coldest night (TNn)-21.1 C (-6.0 F)2011-11.1 C (11.9 F)38
Wettest day (Rx1day)114.3 mm (4.5 in)200439.9 mm (1.6 in)38
Wettest five days (Rx5day)164.3 mm (6.5 in)200460.8 mm (2.4 in)38
Longest dry spell (CDD)151 days201157 days38

Hottest day (TXx)

Hottest day (TXx) at Brantley Dam by year The hottest day of the year at Brantley Dam, 1987 to 2026. The record is 46.7 C (116.1 F) in 1994, marked on the chart; the median year is 42.8 C (109.0 F). 30354045501990200020102020Record: 46.7 C (116.1 F) in 1994
The hottest day of the year at Brantley Dam, 1987 to 2026. The record is 46.7 C (116.1 F) in 1994, marked on the chart; the median year is 42.8 C (109.0 F).
Hottest day (TXx) at Brantley Dam by year
YearHottest day (TXx)
198741.7 C (107.1 F)
198839.4 C (102.9 F)
198943.3 C (109.9 F)
199043.3 C (109.9 F)
199142.8 C (109.0 F)
199241.1 C (106.0 F)
199340.0 C (104.0 F)
199446.7 C (116.1 F)
199543.3 C (109.9 F)
199641.7 C (107.1 F)
199740.6 C (105.1 F)
199843.9 C (111.0 F)
199942.2 C (108.0 F)
200042.8 C (109.0 F)
200141.1 C (106.0 F)
200242.2 C (108.0 F)
200341.7 C (107.1 F)
200440.6 C (105.1 F)
200542.8 C (109.0 F)
200642.2 C (108.0 F)
200741.7 C (107.1 F)
200842.2 C (108.0 F)
200940.6 C (105.1 F)
201044.4 C (111.9 F)
201143.3 C (109.9 F)
201242.8 C (109.0 F)
201534.4 C (93.9 F)
201642.8 C (109.0 F)
201742.8 C (109.0 F)
201842.8 C (109.0 F)
201943.3 C (109.9 F)
202044.4 C (111.9 F)
202143.3 C (109.9 F)
202243.3 C (109.9 F)
202343.3 C (109.9 F)
202441.7 C (107.1 F)
202542.8 C (109.0 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Brantley Dam by year The coldest night of the year at Brantley Dam, 1987 to 2026. The record is -21.1 C (-6.0 F) in 2011, marked on the chart; the median year is -11.1 C (11.9 F). -25-20-15-10-51990200020102020Record: -21.1 C (-6.0 F) in 2011
The coldest night of the year at Brantley Dam, 1987 to 2026. The record is -21.1 C (-6.0 F) in 2011, marked on the chart; the median year is -11.1 C (11.9 F).
Coldest night (TNn) at Brantley Dam by year
YearColdest night (TNn)
1987-16.1 C (3.0 F)
1988-11.7 C (10.9 F)
1989-16.7 C (1.9 F)
1990-12.8 C (9.0 F)
1991-7.2 C (19.0 F)
1992-10.0 C (14.0 F)
1993-10.6 C (12.9 F)
1994-11.7 C (10.9 F)
1995-6.7 C (19.9 F)
1996-15.0 C (5.0 F)
1997-17.2 C (1.0 F)
1998-10.0 C (14.0 F)
1999-10.0 C (14.0 F)
2000-9.4 C (15.1 F)
2001-7.8 C (18.0 F)
2002-10.6 C (12.9 F)
2003-9.4 C (15.1 F)
2004-12.2 C (10.0 F)
2005-14.4 C (6.1 F)
2006-11.7 C (10.9 F)
2007-8.3 C (17.1 F)
2008-10.6 C (12.9 F)
2009-10.6 C (12.9 F)
2010-10.6 C (12.9 F)
2011-21.1 C (-6.0 F)
2012-7.2 C (19.0 F)
2015-9.4 C (15.1 F)
2016-12.8 C (9.0 F)
2017-12.2 C (10.0 F)
2018-14.4 C (6.1 F)
2019-8.9 C (16.0 F)
2020-10.6 C (12.9 F)
2021-15.6 C (3.9 F)
2022-15.0 C (5.0 F)
2023-8.9 C (16.0 F)
2024-12.8 C (9.0 F)
2025-14.4 C (6.1 F)
2026-19.4 C (-2.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Brantley Dam by year The wettest day of the year at Brantley Dam, 1987 to 2026. The record is 114.3 mm (4.5 in) in 2004, marked on the chart; the median year is 39.9 mm (1.6 in). 02550751001251990200020102020Record: 114.3 mm (4.5 in) in 2004
The wettest day of the year at Brantley Dam, 1987 to 2026. The record is 114.3 mm (4.5 in) in 2004, marked on the chart; the median year is 39.9 mm (1.6 in).
Wettest day (Rx1day) at Brantley Dam by year
YearWettest day (Rx1day)
198725.4 mm (1.0 in)
198876.2 mm (3.0 in)
198927.2 mm (1.1 in)
199032.8 mm (1.3 in)
199139.4 mm (1.6 in)
199235.6 mm (1.4 in)
199330.2 mm (1.2 in)
199476.2 mm (3.0 in)
199536.8 mm (1.4 in)
199632.0 mm (1.3 in)
199749.5 mm (1.9 in)
199815.2 mm (0.6 in)
199943.2 mm (1.7 in)
200037.3 mm (1.5 in)
200127.9 mm (1.1 in)
200234.5 mm (1.4 in)
200322.4 mm (0.9 in)
2004114.3 mm (4.5 in)
200521.6 mm (0.9 in)
200649.0 mm (1.9 in)
200753.6 mm (2.1 in)
200847.0 mm (1.9 in)
200930.7 mm (1.2 in)
201067.6 mm (2.7 in)
201119.8 mm (0.8 in)
201259.4 mm (2.3 in)
201540.4 mm (1.6 in)
201678.2 mm (3.1 in)
201740.6 mm (1.6 in)
201835.6 mm (1.4 in)
201972.9 mm (2.9 in)
202034.8 mm (1.4 in)
202171.4 mm (2.8 in)
202280.0 mm (3.1 in)
202366.8 mm (2.6 in)
202423.1 mm (0.9 in)
202555.9 mm (2.2 in)
202645.7 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Brantley Dam by year The wettest five days of the year at Brantley Dam, 1987 to 2026. The record is 164.3 mm (6.5 in) in 2004, marked on the chart; the median year is 60.8 mm (2.4 in). 0501001502001990200020102020Record: 164.3 mm (6.5 in) in 2004
The wettest five days of the year at Brantley Dam, 1987 to 2026. The record is 164.3 mm (6.5 in) in 2004, marked on the chart; the median year is 60.8 mm (2.4 in).
Wettest five days (Rx5day) at Brantley Dam by year
YearWettest five days (Rx5day)
198749.3 mm (1.9 in)
1988102.1 mm (4.0 in)
198930.8 mm (1.2 in)
199052.1 mm (2.1 in)
199166.9 mm (2.6 in)
199284.1 mm (3.3 in)
199330.7 mm (1.2 in)
199489.2 mm (3.5 in)
199560.8 mm (2.4 in)
199660.7 mm (2.4 in)
199749.5 mm (1.9 in)
199825.7 mm (1.0 in)
199956.6 mm (2.2 in)
200078.2 mm (3.1 in)
200142.1 mm (1.7 in)
200259.2 mm (2.3 in)
200332.5 mm (1.3 in)
2004164.3 mm (6.5 in)
200542.9 mm (1.7 in)
200682.8 mm (3.3 in)
200756.1 mm (2.2 in)
200867.9 mm (2.7 in)
200947.7 mm (1.9 in)
201068.6 mm (2.7 in)
201136.1 mm (1.4 in)
201284.8 mm (3.3 in)
2015103.9 mm (4.1 in)
201687.1 mm (3.4 in)
201745.8 mm (1.8 in)
201844.5 mm (1.8 in)
201993.3 mm (3.7 in)
202039.9 mm (1.6 in)
2021122.2 mm (4.8 in)
2022101.3 mm (4.0 in)
202370.6 mm (2.8 in)
202443.5 mm (1.7 in)
202568.3 mm (2.7 in)
202694.7 mm (3.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Brantley Dam by year The longest dry spell of the year at Brantley Dam, 1987 to 2026. The record is 151 days in 2011, marked on the chart; the median year is 57 days. 0501001502001990200020102020Record: 151 days in 2011
The longest dry spell of the year at Brantley Dam, 1987 to 2026. The record is 151 days in 2011, marked on the chart; the median year is 57 days.
Longest dry spell (CDD) at Brantley Dam by year
YearLongest dry spell (CDD)
198749 days
198875 days
1989105 days
199051 days
199146 days
199227 days
199345 days
199438 days
199576 days
199693 days
199734 days
199853 days
199974 days
200073 days
200142 days
200248 days
200358 days
200427 days
200576 days
200655 days
200752 days
2008126 days
200956 days
201070 days
2011151 days
201250 days
201526 days
201646 days
201758 days
201867 days
201959 days
202066 days
202158 days
202273 days
202398 days
202443 days
202584 days
202633 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Brantley Dam falls on 27 March and the median first autumn frost on 3 November, which leaves a median of 225 days between them.

Fitted over all years, the growing season changes by +1.8 days per decade at this station.

Frost dates and growing season at Brantley Dam
MeasureMedian, all yearsEarliest periodRecent period (1988 to 2025)Recent against earliestFitted trend
Last spring frost27 Marchn/a27 Marchn/a-2.4 days per decade
First autumn frost3 Novembern/a3 Novembern/a-0.6 days per decade
Growing days225 daysn/a225 daysn/a+1.8 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

32 years, 1988 to 2025

A day with at least 41.9 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 128.9 mm (5.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Brantley Dam: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years41.9 mm (1.6 in)
5 years62.7 mm (2.5 in)
10 years77.5 mm (3.1 in)
25 years97.2 mm (3.8 in)
50 years112.8 mm (4.4 in)Longer than the 32 years of record
100 years128.9 mm (5.1 in)Longer than the 32 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, 32 years of values from 1988 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: 114.3 mm (4.5 in) in 2004; 80.0 mm (3.1 in) in 2022; 78.2 mm (3.1 in) in 2016.

Download the Data

  • Data for Brantley Dam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Brantley Dam 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).