Built 2026-10-16 (16 October 2026)

Blakely Mtn Dam Weather Records (USC00030764)

Record envelope, standing records and threshold days for Blakely Mtn Dam (USC00030764), Arkansas, United States, with 77 years of record.

Key Facts for Blakely Mtn Dam

  • Blakely Mtn Dam (USC00030764) is a weather station in Arkansas, United States at 34.57 latitude and -93.19 longitude, 130 m (426 ft) above sea level.
  • The station reports from 1950 to 2026, 77 years of record.
  • 1,464 records set at Blakely Mtn Dam still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Blakely Mtn Dam set a daily record high minimum temperature of 20.6 C (69.1 F) on 2 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Arkansas, United States, 34.57 latitude, -93.19 longitude.
  • Elevation: 130 m (426 ft).
  • Period of record: 1950 to 2026, 77 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

12 days at or beyond a record
Daily record high and record low at Blakely Mtn Dam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Blakely Mtn Dam. The lines show the 2026 daily maximum and minimum. 12 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 Blakely Mtn Dam. The lines show the 2026 daily maximum and minimum. 12 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Blakely Mtn Dam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan25.6 C (78.1 F)-22.2 C (-8.0 F)21.7 C (71.1 F)-10.6 C (12.9 F)
Feb29.4 C (84.9 F)-18.9 C (-2.0 F)25.0 C (77.0 F)-7.8 C (18.0 F)
Mar32.8 C (91.0 F)-11.1 C (12.0 F)32.8 C (91.0 F)-3.3 C (26.1 F)
Apr35.0 C (95.0 F)-4.4 C (24.1 F)28.9 C (84.0 F)2.8 C (37.0 F)
May35.6 C (96.1 F)1.1 C (34.0 F)31.1 C (88.0 F)5.0 C (41.0 F)
Jun41.1 C (106.0 F)7.2 C (45.0 F)34.4 C (93.9 F)17.8 C (64.0 F)
Jul42.8 C (109.0 F)9.4 C (48.9 F)38.3 C (100.9 F)17.8 C (64.0 F)
Aug43.9 C (111.0 F)7.2 C (45.0 F)40.0 C (104.0 F)16.1 C (61.0 F)
Sep40.6 C (105.1 F)0.6 C (33.1 F)38.9 C (102.0 F)12.2 C (54.0 F)
Oct35.6 C (96.1 F)-3.9 C (25.0 F)32.2 C (90.0 F)10.0 C (50.0 F)
Nov29.4 C (84.9 F)-11.1 C (12.0 F)n/an/a
Dec27.2 C (81.0 F)-17.8 C (0.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Blakely Mtn Dam by the year they were set 1,464 records at Blakely Mtn Dam still stand. 1963 holds the most, with 50. 02040601956: 161957: 191958: 221959: 271960: 221961: 261962: 311963: 501964: 341965: 341966: 261967: 441968: 171969: 181970: 381971: 171972: 221973: 131974: 191975: 151976: 391977: 231978: 171979: 181980: 421981: 211982: 191983: 101984: 301985: 281986: 271987: 231988: 191989: 381990: 121991: 161992: 241993: 291994: 111995: 191996: 211997: 161998: 171999: 122000: 312001: 72002: 162003: 102004: 202005: 152006: 202007: 132008: 92009: 142010: 132011: 282012: 212013: 52014: 242015: 112016: 82017: 142018: 172019: 122020: 102021: 202022: 132023: 162024: 162025: 212026: 19195619641972198019881996200420122020
1,464 records at Blakely Mtn Dam still stand. 1963 holds the most, with 50.
Standing records at Blakely Mtn Dam by the year they were set
Year setStanding records
195616
195719
195822
195927
196022
196126
196231
196350
196434
196534
196626
196744
196817
196918
197038
197117
197222
197313
197419
197515
197639
197723
197817
197918
198042
198121
198219
198310
198430
198528
198627
198723
198819
198938
199012
199116
199224
199329
199411
199519
199621
199716
199817
199912
200031
20017
200216
200310
200420
200515
200620
200713
20089
200914
201013
201128
201221
20135
201424
201511
20168
201714
201817
201912
202010
202120
202213
202316
202416
202521
202619

All-Time Record Progression

6 new records
When Blakely Mtn Dam set new all-time records 6 all-time records were set at Blakely Mtn Dam between 3 December 1982 and 26 December 2012. Each dot is a new record. Record daily precipitationRecord low maximum temperatureRecord daily snowfallRecord snow depth3 December 1982: Record daily precipitation 208.3 mm (8.2 in)23 December 1989: Record low maximum temperature -10.0 C (14.0 F)27 January 2000: Record daily snowfall 20.3 cm (8.0 in)25 February 2003: Record snow depth 17.8 cm (7.0 in)26 December 2012: Record daily snowfall 38.9 cm (15.3 in)26 December 2012: Record snow depth 38.1 cm (15.0 in)198519901995200020052010
6 all-time records were set at Blakely Mtn Dam between 3 December 1982 and 26 December 2012. Each dot is a new record.
When Blakely Mtn Dam set new all-time records
DateKindDetail
1982-12-03Record daily precipitationRecord daily precipitation 208.3 mm (8.2 in)
1989-12-23Record low maximum temperatureRecord low maximum temperature -10.0 C (14.0 F)
2000-01-27Record daily snowfallRecord daily snowfall 20.3 cm (8.0 in)
2003-02-25Record snow depthRecord snow depth 17.8 cm (7.0 in)
2012-12-26Record daily snowfallRecord daily snowfall 38.9 cm (15.3 in)
2012-12-26Record snow depthRecord snow depth 38.1 cm (15.0 in)

Wettest Day of Each Month

Dec: 208.3 mm (8.2 in)
Record daily precipitation for each month at Blakely Mtn Dam The wettest day on record for each calendar month at Blakely Mtn Dam. The most was 208.3 mm (8.2 in) on 3 December 1982. 0100200300 Jan: 200.2 mm (7.9 in), 30 January 1969 Jan Feb: 114.3 mm (4.5 in), 10 February 1998 Feb Mar: 107.7 mm (4.2 in), 8 March 1990 Mar Apr: 160.3 mm (6.3 in), 5 April 2025 Apr May: 144.0 mm (5.7 in), 27 May 1955 May Jun: 152.4 mm (6.0 in), 17 June 1997 Jun Jul: 186.7 mm (7.4 in), 16 July 1963 Jul Aug: 126.7 mm (5.0 in), 20 August 2004 Aug Sep: 182.9 mm (7.2 in), 22 September 1965 Sep Oct: 125.0 mm (4.9 in), 27 October 1970 Oct Nov: 146.1 mm (5.8 in), 22 November 1963 Nov Dec: 208.3 mm (8.2 in), 3 December 1982 Dec
The wettest day on record for each calendar month at Blakely Mtn Dam. The most was 208.3 mm (8.2 in) on 3 December 1982.
Record daily precipitation for each month at Blakely Mtn Dam
MonthRecord daily precipitation (mm)Date
Jan200.2 mm (7.9 in)30 January 1969
Feb114.3 mm (4.5 in)10 February 1998
Mar107.7 mm (4.2 in)8 March 1990
Apr160.3 mm (6.3 in)5 April 2025
May144.0 mm (5.7 in)27 May 1955
Jun152.4 mm (6.0 in)17 June 1997
Jul186.7 mm (7.4 in)16 July 1963
Aug126.7 mm (5.0 in)20 August 2004
Sep182.9 mm (7.2 in)22 September 1965
Oct125.0 mm (4.9 in)27 October 1970
Nov146.1 mm (5.8 in)22 November 1963
Dec208.3 mm (8.2 in)3 December 1982

Period of Record Coverage

1956 to 2026
Days with data per year at Blakely Mtn Dam 71 years of record at Blakely Mtn Dam, 1956 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1956, 1987, 1988, 1989, 1990, 1991, 2012, 2013 and others. 1956: 152 of 366 days1957: 364 of 365 days1958: 351 of 365 days1959: 363 of 365 days1960: 364 of 366 days1961: 364 of 365 days1962: 347 of 365 days1963: 359 of 365 days1964: 365 of 366 days1965: 364 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 364 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 333 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 364 of 365 days1987: 253 of 365 days1988: 259 of 366 days1989: 260 of 365 days1990: 217 of 365 days1991: 231 of 365 days1992: 338 of 366 days1993: 356 of 365 days1994: 360 of 365 days1995: 363 of 365 days1996: 331 of 366 days1997: 361 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 364 of 366 days2001: 361 of 365 days2002: 362 of 365 days2003: 363 of 365 days2004: 362 of 366 days2005: 363 of 365 days2006: 364 of 365 days2007: 364 of 365 days2008: 362 of 366 days2009: 363 of 365 days2010: 363 of 365 days2011: 363 of 365 days2012: 306 of 366 days2013: 92 of 365 days2014: 364 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 364 of 366 days2025: 362 of 365 days2026: 282 of 365 days1960197019801990200020102020
71 years of record at Blakely Mtn Dam, 1956 to 2026. 9 years have data for under 90 percent of days and are left out of rankings: 1956, 1987, 1988, 1989, 1990, 1991, 2012, 2013 and others.
Days with data per year at Blakely Mtn Dam
YearDays with dataShare of yearComplete
195615242%No
1957364100%Yes
195835196%Yes
195936399%Yes
196036499%Yes
1961364100%Yes
196234795%Yes
196335998%Yes
1964365100%Yes
1965364100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
197636499%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198333391%Yes
1984366100%Yes
1985365100%Yes
1986364100%Yes
198725369%No
198825971%No
198926071%No
199021759%No
199123163%No
199233892%Yes
199335698%Yes
199436099%Yes
199536399%Yes
199633190%Yes
199736199%Yes
1998365100%Yes
1999365100%Yes
200036499%Yes
200136199%Yes
200236299%Yes
200336399%Yes
200436299%Yes
200536399%Yes
2006364100%Yes
2007364100%Yes
200836299%Yes
200936399%Yes
201036399%Yes
201136399%Yes
201230684%No
20139225%No
2014364100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018364100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
202436499%Yes
202536299%Yes
202628277%No

Latest Records

20
Latest records at Blakely Mtn Dam
DateStationRecordValueBeat old record byOld record stoodSignificance
2 October 2026Blakely Mtn Dam, USdaily high min (Provisional)20.6 C (69.1 F)0.6 C (1.1 F)8 years10 of 100 (Routine)
21 September 2026Blakely Mtn Dam, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)67 years29 of 100 (Routine)
19 September 2026Blakely Mtn Dam, USdaily high max (Tie, Provisional)35.0 C (95.0 F)tie28 years3 of 100 (Routine)
18 September 2026Blakely Mtn Dam, USdaily high max (Provisional)35.6 C (96.1 F)0.6 C (1.1 F)28 years16 of 100 (Routine)
17 September 2026Blakely Mtn Dam, USdaily high min (Provisional)21.7 C (71.1 F)0.6 C (1.1 F)16 years13 of 100 (Routine)
16 September 2026Blakely Mtn Dam, USdaily high min (Provisional)23.3 C (73.9 F)2.2 C (4.0 F)37 years23 of 100 (Routine)
15 September 2026Blakely Mtn Dam, USdaily high min (Provisional)21.7 C (71.1 F)0.6 C (1.1 F)48 years22 of 100 (Routine)
14 September 2026Blakely Mtn Dam, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)28 years16 of 100 (Routine)
12 September 2026Blakely Mtn Dam, USdaily high max (Tie, Provisional)36.1 C (97.0 F)tie55 years5 of 100 (Routine)
11 September 2026Blakely Mtn Dam, USdaily rain (Provisional)33.5 mm (1.3 in)2.5 mm (0.10 in)68 years28 of 100 (Routine)
11 September 2026Blakely Mtn Dam, USdaily high max (Provisional)36.1 C (97.0 F)0.5 C (0.9 F)63 years26 of 100 (Routine)
9 September 2026Blakely Mtn Dam, USdaily high max (Provisional)38.9 C (102.0 F)2.2 C (4.0 F)65 years31 of 100 (Routine)
8 September 2026Blakely Mtn Dam, USdaily high max (Tie, Provisional)37.2 C (99.0 F)tie36 years4 of 100 (Routine)
7 September 2026Blakely Mtn Dam, USmonthly high min (Tie, Provisional)23.9 C (75.0 F)tie65 years9 of 100 (Routine)
6 September 2026Blakely Mtn Dam, USdaily high min (Provisional)22.2 C (72.0 F)0.5 C (0.9 F)55 years24 of 100 (Routine)
24 August 2026Blakely Mtn Dam, USdaily high min (Tie, Provisional)22.8 C (73.0 F)tie3 years1 of 100 (Routine)
23 August 2026Blakely Mtn Dam, USdaily high max (Provisional)38.3 C (100.9 F)0.5 C (0.9 F)45 years21 of 100 (Routine)
21 August 2026Blakely Mtn Dam, USdaily high max (Tie, Provisional)40.0 C (104.0 F)tie3 years1 of 100 (Routine)
20 August 2026Blakely Mtn Dam, USdaily high min (Provisional)23.3 C (73.9 F)0.5 C (0.9 F)56 years24 of 100 (Routine)
19 August 2026Blakely Mtn Dam, USdaily high max (Provisional)40.0 C (104.0 F)1.1 C (2.0 F)27 years18 of 100 (Routine)

Climate Trend

57 complete years, 1957 to 2025
Annual mean temperature at Blakely Mtn Dam as warming stripes, 1957 to 2025 One stripe for each of 57 complete years at Blakely Mtn Dam, 1957 to 2025. Blue stripes are years cooler than the station's own mean of 15.4 C (59.8 F); red stripes are warmer. The coolest year was 2014, at 14.0 C (57.2 F), and the warmest was 2024, at 17.0 C (62.5 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1957: 16.1 C, +0.6 C from the station mean1959: 15.7 C, +0.2 C from the station mean1960: 15.2 C, -0.2 C from the station mean1961: 15.1 C, -0.4 C from the station mean1963: 15.9 C, +0.4 C from the station mean1964: 15.7 C, +0.3 C from the station mean1965: 15.9 C, +0.5 C from the station mean1966: 15.0 C, -0.4 C from the station mean1967: 15.1 C, -0.3 C from the station mean1968: 14.5 C, -0.9 C from the station mean1969: 15.1 C, -0.3 C from the station mean1970: 15.1 C, -0.3 C from the station mean1971: 15.6 C, +0.2 C from the station mean1972: 15.2 C, -0.2 C from the station mean1973: 15.4 C, 0.0 C from the station mean1974: 15.4 C, 0.0 C from the station mean1975: 15.1 C, -0.3 C from the station mean1976: 14.4 C, -1.1 C from the station mean1977: 15.6 C, +0.1 C from the station mean1978: 14.6 C, -0.9 C from the station mean1979: 14.0 C, -1.4 C from the station mean1980: 15.5 C, 0.0 C from the station mean1981: 15.4 C, 0.0 C from the station mean1982: 15.3 C, -0.1 C from the station mean1984: 15.4 C, -0.1 C from the station mean1985: 15.5 C, +0.1 C from the station mean1986: 16.2 C, +0.8 C from the station mean1993: 14.6 C, -0.8 C from the station mean1994: 15.0 C, -0.5 C from the station mean1995: 14.9 C, -0.5 C from the station mean1997: 14.7 C, -0.7 C from the station mean1998: 16.5 C, +1.1 C from the station mean1999: 15.8 C, +0.4 C from the station mean2000: 15.3 C, -0.1 C from the station mean2001: 15.5 C, 0.0 C from the station mean2002: 14.8 C, -0.6 C from the station mean2003: 14.9 C, -0.6 C from the station mean2004: 15.2 C, -0.2 C from the station mean2005: 15.9 C, +0.5 C from the station mean2006: 15.7 C, +0.3 C from the station mean2007: 15.6 C, +0.2 C from the station mean2008: 14.8 C, -0.6 C from the station mean2009: 14.8 C, -0.6 C from the station mean2010: 15.3 C, -0.1 C from the station mean2011: 16.0 C, +0.6 C from the station mean2014: 14.0 C, -1.4 C from the station mean2015: 15.8 C, +0.4 C from the station mean2016: 16.4 C, +1.0 C from the station mean2017: 16.6 C, +1.2 C from the station mean2018: 15.7 C, +0.2 C from the station mean2019: 15.6 C, +0.2 C from the station mean2020: 15.4 C, 0.0 C from the station mean2021: 15.5 C, 0.0 C from the station mean2022: 15.6 C, +0.2 C from the station mean2023: 16.4 C, +1.0 C from the station mean2024: 17.0 C, +1.5 C from the station mean2025: 17.0 C, +1.5 C from the station mean1957197019801990200020102020
One stripe for each of 57 complete years at Blakely Mtn Dam, 1957 to 2025. Blue stripes are years cooler than the station's own mean of 15.4 C (59.8 F); red stripes are warmer. The coolest year was 2014, at 14.0 C (57.2 F), and the warmest was 2024, at 17.0 C (62.5 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Blakely Mtn Dam as warming stripes, 1957 to 2025
YearAnnual mean temperatureDifference from the station mean
195716.1 C+0.63 C
195915.7 C+0.25 C
196015.2 C-0.18 C
196115.1 C-0.35 C
196315.9 C+0.45 C
196415.7 C+0.31 C
196515.9 C+0.50 C
196615.0 C-0.42 C
196715.1 C-0.34 C
196814.5 C-0.88 C
196915.1 C-0.33 C
197015.1 C-0.29 C
197115.6 C+0.17 C
197215.2 C-0.21 C
197315.4 C-0.04 C
197415.4 C-0.04 C
197515.1 C-0.28 C
197614.4 C-1.05 C
197715.6 C+0.14 C
197814.6 C-0.87 C
197914.0 C-1.39 C
198015.5 C+0.03 C
198115.4 C-0.02 C
198215.3 C-0.13 C
198415.4 C-0.05 C
198515.5 C+0.08 C
198616.2 C+0.81 C
199314.6 C-0.81 C
199415.0 C-0.46 C
199514.9 C-0.52 C
199714.7 C-0.71 C
199816.5 C+1.12 C
199915.8 C+0.36 C
200015.3 C-0.09 C
200115.5 C+0.03 C
200214.8 C-0.59 C
200314.9 C-0.56 C
200415.2 C-0.20 C
200515.9 C+0.49 C
200615.7 C+0.30 C
200715.6 C+0.20 C
200814.8 C-0.59 C
200914.8 C-0.64 C
201015.3 C-0.12 C
201116.0 C+0.57 C
201414.0 C-1.41 C
201515.8 C+0.42 C
201616.4 C+1.02 C
201716.6 C+1.18 C
201815.7 C+0.23 C
201915.6 C+0.20 C
202015.4 C+0.02 C
202115.5 C+0.05 C
202215.6 C+0.16 C
202316.4 C+1.00 C
202417.0 C+1.55 C
202517.0 C+1.54 C

The annual mean temperature here has risen by 0.09 C (0.01 to 0.17) per decade over 1957 to 2025. In Fahrenheit: 0.17 F (0.03 to 0.31) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Blakely Mtn Dam
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.09 C (0.01 to 0.17) per decade0.17 F (0.03 to 0.31) per decade1957 to 202557Rise
Mean daily maximum-0.05 C (-0.14 to 0.04) per decade-0.1 F (-0.2 to 0.1) per decade1957 to 202557Not clearly different from zero
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.4 F (0.3 to 0.6) per decade1957 to 202557Rise

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

1950 to 2026
Yearly extremes at Blakely Mtn Dam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)198638.9 C (102.0 F)71
Coldest night (TNn)-22.2 C (-8.0 F)1962-11.7 C (10.9 F)71
Wettest day (Rx1day)208.3 mm (8.2 in)198295.0 mm (3.7 in)76
Wettest five days (Rx5day)363.5 mm (14.3 in)1963143.0 mm (5.6 in)76
Longest dry spell (CDD)47 days200522 days76

Hottest day (TXx)

Hottest day (TXx) at Blakely Mtn Dam by year The hottest day of the year at Blakely Mtn Dam, 1950 to 2026. The record is 43.9 C (111.0 F) in 1986, marked on the chart; the median year is 38.9 C (102.0 F). 25303540451960198020002020Record: 43.9 C (111.0 F) in 1986
The hottest day of the year at Blakely Mtn Dam, 1950 to 2026. The record is 43.9 C (111.0 F) in 1986, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Blakely Mtn Dam by year
YearHottest day (TXx)
1950n/a
1951n/a
1953n/a
1954n/a
1955n/a
195641.1 C (106.0 F)
195737.8 C (100.0 F)
195837.2 C (99.0 F)
195936.1 C (97.0 F)
196038.9 C (102.0 F)
196137.8 C (100.0 F)
196241.7 C (107.1 F)
196340.6 C (105.1 F)
196441.7 C (107.1 F)
196537.8 C (100.0 F)
196641.1 C (106.0 F)
196736.7 C (98.1 F)
196837.2 C (99.0 F)
196940.6 C (105.1 F)
197038.9 C (102.0 F)
197141.1 C (106.0 F)
197238.9 C (102.0 F)
197335.6 C (96.1 F)
197441.7 C (107.1 F)
197538.9 C (102.0 F)
197637.8 C (100.0 F)
197737.8 C (100.0 F)
197838.9 C (102.0 F)
197936.1 C (97.0 F)
198042.2 C (108.0 F)
198138.3 C (100.9 F)
198237.8 C (100.0 F)
198338.9 C (102.0 F)
198437.2 C (99.0 F)
198540.0 C (104.0 F)
198643.9 C (111.0 F)
198740.0 C (104.0 F)
198838.9 C (102.0 F)
198936.7 C (98.1 F)
199040.6 C (105.1 F)
199137.2 C (99.0 F)
199235.6 C (96.1 F)
199340.0 C (104.0 F)
199437.8 C (100.0 F)
199538.9 C (102.0 F)
199635.0 C (95.0 F)
199737.8 C (100.0 F)
199839.4 C (102.9 F)
199938.9 C (102.0 F)
200041.1 C (106.0 F)
200137.2 C (99.0 F)
200236.7 C (98.1 F)
200336.7 C (98.1 F)
200436.1 C (97.0 F)
200537.8 C (100.0 F)
200639.4 C (102.9 F)
200739.4 C (102.9 F)
200839.4 C (102.9 F)
200937.8 C (100.0 F)
201039.4 C (102.9 F)
201141.1 C (106.0 F)
201241.1 C (106.0 F)
201329.4 C (84.9 F)
201435.6 C (96.1 F)
201538.3 C (100.9 F)
201637.8 C (100.0 F)
201736.7 C (98.1 F)
201840.0 C (104.0 F)
201937.2 C (99.0 F)
202034.4 C (93.9 F)
202137.2 C (99.0 F)
202238.9 C (102.0 F)
202340.0 C (104.0 F)
202438.9 C (102.0 F)
202537.8 C (100.0 F)
202640.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Blakely Mtn Dam by year The coldest night of the year at Blakely Mtn Dam, 1950 to 2026. The record is -22.2 C (-8.0 F) in 1962, marked on the chart; the median year is -11.7 C (10.9 F). -25-20-15-10-51960198020002020Record: -22.2 C (-8.0 F) in 1962
The coldest night of the year at Blakely Mtn Dam, 1950 to 2026. The record is -22.2 C (-8.0 F) in 1962, marked on the chart; the median year is -11.7 C (10.9 F).
Coldest night (TNn) at Blakely Mtn Dam by year
YearColdest night (TNn)
1950n/a
1951n/a
1953n/a
1954n/a
1955n/a
1956-7.2 C (19.0 F)
1957-12.8 C (9.0 F)
1958-15.6 C (3.9 F)
1959-13.9 C (7.0 F)
1960-10.0 C (14.0 F)
1961-11.1 C (12.0 F)
1962-22.2 C (-8.0 F)
1963-16.7 C (1.9 F)
1964-13.9 C (7.0 F)
1965-11.7 C (10.9 F)
1966-17.8 C (0.0 F)
1967-10.0 C (14.0 F)
1968-12.2 C (10.0 F)
1969-11.1 C (12.0 F)
1970-15.0 C (5.0 F)
1971-11.1 C (12.0 F)
1972-12.8 C (9.0 F)
1973-11.1 C (12.0 F)
1974-8.3 C (17.1 F)
1975-11.1 C (12.0 F)
1976-13.3 C (8.1 F)
1977-15.0 C (5.0 F)
1978-12.2 C (10.0 F)
1979-13.9 C (7.0 F)
1980-11.1 C (12.0 F)
1981-14.4 C (6.1 F)
1982-16.7 C (1.9 F)
1983-6.7 C (19.9 F)
1984-15.6 C (3.9 F)
1985-17.2 C (1.0 F)
1986-8.9 C (16.0 F)
1987-8.3 C (17.1 F)
1988-15.0 C (5.0 F)
1989-17.8 C (0.0 F)
1990-12.8 C (9.0 F)
1991-10.6 C (12.9 F)
1992-11.7 C (10.9 F)
1993-10.0 C (14.0 F)
1994-12.2 C (10.0 F)
1995-11.7 C (10.9 F)
1996-13.9 C (7.0 F)
1997-12.2 C (10.0 F)
1998-9.4 C (15.1 F)
1999-11.7 C (10.9 F)
2000-11.1 C (12.0 F)
2001-12.8 C (9.0 F)
2002-11.7 C (10.9 F)
2003-11.1 C (12.0 F)
2004-12.8 C (9.0 F)
2005-11.1 C (12.0 F)
2006-10.6 C (12.9 F)
2007-9.4 C (15.1 F)
2008-10.6 C (12.9 F)
2009-8.3 C (17.1 F)
2010-13.3 C (8.1 F)
2011-12.2 C (10.0 F)
2012-7.2 C (19.0 F)
2013-7.2 C (19.0 F)
2014-14.4 C (6.1 F)
2015-12.8 C (9.0 F)
2016-9.4 C (15.1 F)
2017-10.0 C (14.0 F)
2018-13.3 C (8.1 F)
2019-8.9 C (16.0 F)
2020-6.1 C (21.0 F)
2021-18.9 C (-2.0 F)
2022-16.7 C (1.9 F)
2023-6.1 C (21.0 F)
2024-16.1 C (3.0 F)
2025-12.2 C (10.0 F)
2026-10.6 C (12.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Blakely Mtn Dam by year The wettest day of the year at Blakely Mtn Dam, 1950 to 2026. The record is 208.3 mm (8.2 in) in 1982, marked on the chart; the median year is 95.0 mm (3.7 in). 0501001502002501960198020002020Record: 208.3 mm (8.2 in) in 1982
The wettest day of the year at Blakely Mtn Dam, 1950 to 2026. The record is 208.3 mm (8.2 in) in 1982, marked on the chart; the median year is 95.0 mm (3.7 in).
Wettest day (Rx1day) at Blakely Mtn Dam by year
YearWettest day (Rx1day)
195081.5 mm (3.2 in)
1951109.2 mm (4.3 in)
195348.8 mm (1.9 in)
195487.4 mm (3.4 in)
1955144.0 mm (5.7 in)
195678.2 mm (3.1 in)
195789.9 mm (3.5 in)
195870.1 mm (2.8 in)
195999.1 mm (3.9 in)
196078.5 mm (3.1 in)
196172.4 mm (2.9 in)
1962106.7 mm (4.2 in)
1963186.7 mm (7.4 in)
1964114.3 mm (4.5 in)
1965182.9 mm (7.2 in)
196682.6 mm (3.3 in)
196781.3 mm (3.2 in)
1968130.8 mm (5.1 in)
1969200.2 mm (7.9 in)
1970125.0 mm (4.9 in)
197153.3 mm (2.1 in)
197271.1 mm (2.8 in)
197396.0 mm (3.8 in)
1974152.4 mm (6.0 in)
197571.9 mm (2.8 in)
197682.0 mm (3.2 in)
197798.3 mm (3.9 in)
1978140.5 mm (5.5 in)
197989.4 mm (3.5 in)
198087.1 mm (3.4 in)
198183.8 mm (3.3 in)
1982208.3 mm (8.2 in)
198379.5 mm (3.1 in)
198499.1 mm (3.9 in)
198591.7 mm (3.6 in)
198672.1 mm (2.8 in)
198769.3 mm (2.7 in)
198861.0 mm (2.4 in)
198985.3 mm (3.4 in)
1990107.7 mm (4.2 in)
199194.2 mm (3.7 in)
1992104.1 mm (4.1 in)
1993113.0 mm (4.4 in)
1994121.9 mm (4.8 in)
199581.0 mm (3.2 in)
199690.2 mm (3.6 in)
1997152.4 mm (6.0 in)
1998114.3 mm (4.5 in)
199994.0 mm (3.7 in)
2000104.1 mm (4.1 in)
200161.0 mm (2.4 in)
2002107.7 mm (4.2 in)
200376.2 mm (3.0 in)
2004126.7 mm (5.0 in)
200596.0 mm (3.8 in)
200659.2 mm (2.3 in)
200798.8 mm (3.9 in)
2008161.5 mm (6.4 in)
2009119.4 mm (4.7 in)
201051.6 mm (2.0 in)
2011137.7 mm (5.4 in)
201294.0 mm (3.7 in)
201350.8 mm (2.0 in)
201475.2 mm (3.0 in)
2015125.0 mm (4.9 in)
2016158.8 mm (6.3 in)
201795.8 mm (3.8 in)
201899.8 mm (3.9 in)
201964.5 mm (2.5 in)
2020111.8 mm (4.4 in)
202164.8 mm (2.6 in)
2022100.3 mm (3.9 in)
2023103.6 mm (4.1 in)
202464.5 mm (2.5 in)
2025160.3 mm (6.3 in)
202648.8 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Blakely Mtn Dam by year The wettest five days of the year at Blakely Mtn Dam, 1950 to 2026. The record is 363.5 mm (14.3 in) in 1963, marked on the chart; the median year is 143.0 mm (5.6 in). 01002003004001960198020002020Record: 363.5 mm (14.3 in) in 1963
The wettest five days of the year at Blakely Mtn Dam, 1950 to 2026. The record is 363.5 mm (14.3 in) in 1963, marked on the chart; the median year is 143.0 mm (5.6 in).
Wettest five days (Rx5day) at Blakely Mtn Dam by year
YearWettest five days (Rx5day)
1950130.5 mm (5.1 in)
1951213.6 mm (8.4 in)
195366.0 mm (2.6 in)
1954124.8 mm (4.9 in)
1955161.8 mm (6.4 in)
1956153.9 mm (6.1 in)
1957217.4 mm (8.6 in)
1958159.1 mm (6.3 in)
1959169.9 mm (6.7 in)
1960131.0 mm (5.2 in)
1961105.2 mm (4.1 in)
1962154.0 mm (6.1 in)
1963363.5 mm (14.3 in)
1964150.6 mm (5.9 in)
1965193.3 mm (7.6 in)
1966199.6 mm (7.9 in)
1967109.0 mm (4.3 in)
1968324.3 mm (12.8 in)
1969233.7 mm (9.2 in)
1970180.2 mm (7.1 in)
1971101.8 mm (4.0 in)
1972148.7 mm (5.9 in)
1973156.7 mm (6.2 in)
1974221.2 mm (8.7 in)
1975139.2 mm (5.5 in)
1976120.8 mm (4.8 in)
1977144.8 mm (5.7 in)
1978208.3 mm (8.2 in)
1979153.2 mm (6.0 in)
1980141.2 mm (5.6 in)
1981116.5 mm (4.6 in)
1982255.6 mm (10.1 in)
1983118.1 mm (4.6 in)
1984179.1 mm (7.1 in)
1985109.0 mm (4.3 in)
1986149.1 mm (5.9 in)
198776.2 mm (3.0 in)
198883.9 mm (3.3 in)
1989121.8 mm (4.8 in)
1990131.8 mm (5.2 in)
1991117.8 mm (4.6 in)
1992104.2 mm (4.1 in)
1993170.9 mm (6.7 in)
1994165.4 mm (6.5 in)
199588.9 mm (3.5 in)
1996114.9 mm (4.5 in)
1997170.2 mm (6.7 in)
1998133.8 mm (5.3 in)
1999104.1 mm (4.1 in)
2000135.2 mm (5.3 in)
2001126.8 mm (5.0 in)
2002116.6 mm (4.6 in)
200390.2 mm (3.6 in)
2004154.6 mm (6.1 in)
2005101.6 mm (4.0 in)
200698.3 mm (3.9 in)
2007211.7 mm (8.3 in)
2008220.1 mm (8.7 in)
2009206.5 mm (8.1 in)
201055.1 mm (2.2 in)
2011196.3 mm (7.7 in)
2012119.4 mm (4.7 in)
201383.6 mm (3.3 in)
2014111.2 mm (4.4 in)
2015207.8 mm (8.2 in)
2016176.6 mm (7.0 in)
2017163.9 mm (6.5 in)
2018269.5 mm (10.6 in)
2019116.1 mm (4.6 in)
2020168.6 mm (6.6 in)
2021152.6 mm (6.0 in)
2022140.9 mm (5.5 in)
2023125.0 mm (4.9 in)
2024119.9 mm (4.7 in)
2025271.0 mm (10.7 in)
202664.0 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Blakely Mtn Dam by year The longest dry spell of the year at Blakely Mtn Dam, 1950 to 2026. The record is 47 days in 2005, marked on the chart; the median year is 22 days. 010203040501960198020002020Record: 47 days in 2005
The longest dry spell of the year at Blakely Mtn Dam, 1950 to 2026. The record is 47 days in 2005, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Blakely Mtn Dam by year
YearLongest dry spell (CDD)
195023 days
195113 days
195320 days
195426 days
195527 days
195617 days
195723 days
195821 days
195926 days
196020 days
196123 days
196227 days
196322 days
196423 days
196522 days
196626 days
196720 days
196816 days
196920 days
197027 days
197125 days
197219 days
197314 days
197418 days
197522 days
197619 days
197716 days
197819 days
197930 days
198025 days
198128 days
198223 days
198320 days
198411 days
198518 days
198632 days
198717 days
198817 days
198922 days
199022 days
199112 days
199221 days
199337 days
199414 days
199519 days
199622 days
199718 days
199827 days
199923 days
200026 days
200135 days
200216 days
200326 days
200425 days
200547 days
200621 days
200727 days
200820 days
200921 days
201016 days
201122 days
201221 days
20139 days
201420 days
201532 days
201625 days
201719 days
201812 days
201923 days
202019 days
202112 days
202231 days
202322 days
202435 days
202523 days
202618 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

57 years with a frost

Across 57 years with a frost, the median last spring frost at Blakely Mtn Dam falls on 9 April and the median first autumn frost on 29 October, which leaves a median of 209 days between them.

Fitted over all years, the growing season changes by +2.4 days per decade at this station.

Frost dates and growing season at Blakely Mtn Dam
MeasureMedian, all yearsEarliest periodRecent period (1993 to 2025)Recent against earliestFitted trend
Last spring frost9 Apriln/a7 Apriln/a-1.1 days per decade
First autumn frost29 Octobern/a1 Novembern/a+1.3 days per decade
Growing days209 daysn/a214 daysn/a+2.4 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

65 years, 1954 to 2025

A day with at least 97.2 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 231.0 mm (9.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Blakely Mtn Dam: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years97.2 mm (3.8 in)
5 years128.9 mm (5.1 in)
10 years151.4 mm (6.0 in)
25 years181.8 mm (7.2 in)
50 years205.8 mm (8.1 in)
100 years231.0 mm (9.1 in)Longer than the 65 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, 65 years of values from 1954 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: 208.3 mm (8.2 in) in 1982; 200.2 mm (7.9 in) in 1969; 186.7 mm (7.4 in) in 1963.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of Blakely Mtn Dam, at 1993 and 2015. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1993 ran 0.4 C (0.6 F) lower than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2015 ran 0.3 C (0.5 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Blakely Mtn Dam, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1993-0.3-0.6likely5
2015+0.3+0.5possible5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2009 to 2025 against 1961 to 1990

Over 2009 to 2025, Blakely Mtn Dam had a mean temperature of 15.8 C (60.4 F) and 1,584.4 mm (62.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Water Valley (United States, 330 km away), Haleyville (United States, 511 km away) and Huntsville Intnl AP (United States, 586 km away).

Climate twins of Blakely Mtn Dam: stations whose 1961 to 1990 climate is closest to its 2009 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Water ValleyUnited States330 km (205 mi)15.9 C (60.7 F)1,462.0 mm (57.6 in)0.61
HaleyvilleUnited States511 km (318 mi)15.3 C (59.6 F)1,526.2 mm (60.1 in)0.68
Huntsville Intnl APUnited States586 km (364 mi)15.8 C (60.5 F)1,452.9 mm (57.2 in)0.68

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Blakely Mtn Dam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Blakely Mtn 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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