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Dunlow 1 SW Weather Records (USC00462522)

Record envelope, standing records and threshold days for Dunlow 1 SW (USC00462522), West Virginia, United States, with 56 years of record.

Key Facts for Dunlow 1 SW

  • Dunlow 1 SW (USC00462522) is a weather station in West Virginia, United States at 37.95 latitude and -82.40 longitude, 339 m (1,113 ft) above sea level.
  • The station reports from 1971 to 2026, 56 years of record.
  • 1,464 records set at Dunlow 1 SW still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Dunlow 1 SW set a daily record precipitation of 30.5 mm (1.2 in) on 17 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: West Virginia, United States, 37.95 latitude, -82.40 longitude.
  • Elevation: 339 m (1,113 ft).
  • Period of record: 1971 to 2026, 56 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Dunlow 1 SW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Dunlow 1 SW. The lines show the 2026 daily maximum and minimum. 9 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 Dunlow 1 SW. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Dunlow 1 SW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan24.4 C (75.9 F)-28.9 C (-20.0 F)17.2 C (63.0 F)-15.6 C (3.9 F)
Feb26.7 C (80.1 F)-23.3 C (-9.9 F)18.9 C (66.0 F)-13.3 C (8.1 F)
Mar30.6 C (87.1 F)-16.7 C (1.9 F)30.6 C (87.1 F)-7.8 C (18.0 F)
Apr32.2 C (90.0 F)-11.7 C (10.9 F)30.0 C (86.0 F)0.0 C (32.0 F)
May32.2 C (90.0 F)-3.3 C (26.1 F)31.1 C (88.0 F)-0.6 C (30.9 F)
Jun37.2 C (99.0 F)2.2 C (36.0 F)31.7 C (89.1 F)9.4 C (48.9 F)
Jul37.8 C (100.0 F)6.1 C (43.0 F)33.3 C (91.9 F)14.4 C (57.9 F)
Aug37.8 C (100.0 F)0.6 C (33.1 F)32.2 C (90.0 F)11.7 C (53.1 F)
Sep36.1 C (97.0 F)-2.8 C (27.0 F)n/an/a
Oct33.9 C (93.0 F)-7.2 C (19.0 F)n/an/a
Nov28.3 C (82.9 F)-17.2 C (1.0 F)n/an/a
Dec25.6 C (78.1 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Dunlow 1 SW by the year they were set 1,464 records at Dunlow 1 SW still stand. 1986 holds the most, with 52. 02040601971: 201972: 231973: 301974: 371975: 271976: 511977: 351978: 291979: 261980: 221981: 211982: 341983: 311984: 471985: 321986: 521987: 341988: 431989: 451990: 291991: 371992: 231993: 201994: 171995: 141996: 341997: 201998: 251999: 262000: 162001: 252002: 352003: 102004: 172005: 182006: 302007: 422008: 252009: 172010: 192011: 162012: 222013: 182014: 302015: 312016: 162017: 212018: 422019: 222020: 182021: 92022: 212023: 122024: 122025: 132026: 231971197719831989199520012007201320192025
1,464 records at Dunlow 1 SW still stand. 1986 holds the most, with 52.
Standing records at Dunlow 1 SW by the year they were set
Year setStanding records
197120
197223
197330
197437
197527
197651
197735
197829
197926
198022
198121
198234
198331
198447
198532
198652
198734
198843
198945
199029
199137
199223
199320
199417
199514
199634
199720
199825
199926
200016
200125
200235
200310
200417
200518
200630
200742
200825
200917
201019
201116
201222
201318
201430
201531
201616
201721
201842
201922
202018
20219
202221
202312
202412
202513
202623

All-Time Record Progression

1 new records
When Dunlow 1 SW set new all-time records 1 all-time records were set at Dunlow 1 SW between 23 January 2016 and 23 January 2016. Each dot is a new record. Record daily snowfall23 January 2016: Record daily snowfall 34.3 cm (13.5 in)
1 all-time records were set at Dunlow 1 SW between 23 January 2016 and 23 January 2016. Each dot is a new record.
When Dunlow 1 SW set new all-time records
DateKindDetail
2016-01-23Record daily snowfallRecord daily snowfall 34.3 cm (13.5 in)

Wettest Day of Each Month

Nov: 105.9 mm (4.2 in)
Record daily precipitation for each month at Dunlow 1 SW The wettest day on record for each calendar month at Dunlow 1 SW. The most was 105.9 mm (4.2 in) on 28 November 1973. 050100150 Jan: 61.7 mm (2.4 in), 26 January 2026 Jan Feb: 87.1 mm (3.4 in), 17 February 2023 Feb Mar: 85.1 mm (3.4 in), 1 March 2021 Mar Apr: 56.4 mm (2.2 in), 4 April 2015 Apr May: 68.6 mm (2.7 in), 16 May 1996 May Jun: 71.1 mm (2.8 in), 5 June 1993 Jun Jul: 72.6 mm (2.9 in), 6 July 2022 Jul Aug: 73.7 mm (2.9 in), 31 August 1978 Aug Sep: 77.7 mm (3.1 in), 30 September 1972 Sep Oct: 67.8 mm (2.7 in), 8 October 2025 Oct Nov: 105.9 mm (4.2 in), 28 November 1973 Nov Dec: 97.8 mm (3.9 in), 9 December 1978 Dec
The wettest day on record for each calendar month at Dunlow 1 SW. The most was 105.9 mm (4.2 in) on 28 November 1973.
Record daily precipitation for each month at Dunlow 1 SW
MonthRecord daily precipitation (mm)Date
Jan61.7 mm (2.4 in)26 January 2026
Feb87.1 mm (3.4 in)17 February 2023
Mar85.1 mm (3.4 in)1 March 2021
Apr56.4 mm (2.2 in)4 April 2015
May68.6 mm (2.7 in)16 May 1996
Jun71.1 mm (2.8 in)5 June 1993
Jul72.6 mm (2.9 in)6 July 2022
Aug73.7 mm (2.9 in)31 August 1978
Sep77.7 mm (3.1 in)30 September 1972
Oct67.8 mm (2.7 in)8 October 2025
Nov105.9 mm (4.2 in)28 November 1973
Dec97.8 mm (3.9 in)9 December 1978

Period of Record Coverage

1971 to 2026
Days with data per year at Dunlow 1 SW 56 years of record at Dunlow 1 SW, 1971 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1971, 1980, 1982, 1985, 2009, 2024, 2026. 1971: 236 of 365 days1972: 364 of 366 days1973: 365 of 365 days1974: 360 of 365 days1975: 360 of 365 days1976: 364 of 366 days1977: 335 of 365 days1978: 364 of 365 days1979: 343 of 365 days1980: 255 of 366 days1981: 334 of 365 days1982: 278 of 365 days1983: 362 of 365 days1984: 347 of 366 days1985: 282 of 365 days1986: 345 of 365 days1987: 339 of 365 days1988: 340 of 366 days1989: 334 of 365 days1990: 332 of 365 days1991: 355 of 365 days1992: 361 of 366 days1993: 364 of 365 days1994: 359 of 365 days1995: 364 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 362 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 359 of 365 days2002: 360 of 365 days2003: 363 of 365 days2004: 363 of 366 days2005: 363 of 365 days2006: 359 of 365 days2007: 365 of 365 days2008: 364 of 366 days2009: 320 of 365 days2010: 357 of 365 days2011: 361 of 365 days2012: 357 of 366 days2013: 354 of 365 days2014: 354 of 365 days2015: 351 of 365 days2016: 357 of 366 days2017: 354 of 365 days2018: 359 of 365 days2019: 362 of 365 days2020: 357 of 366 days2021: 356 of 365 days2022: 360 of 365 days2023: 364 of 365 days2024: 305 of 366 days2025: 333 of 365 days2026: 243 of 365 days19801990200020102020
56 years of record at Dunlow 1 SW, 1971 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1971, 1980, 1982, 1985, 2009, 2024, 2026.
Days with data per year at Dunlow 1 SW
YearDays with dataShare of yearComplete
197123665%No
197236499%Yes
1973365100%Yes
197436099%Yes
197536099%Yes
197636499%Yes
197733592%Yes
1978364100%Yes
197934394%Yes
198025570%No
198133492%Yes
198227876%No
198336299%Yes
198434795%Yes
198528277%No
198634595%Yes
198733993%Yes
198834093%Yes
198933492%Yes
199033291%Yes
199135597%Yes
199236199%Yes
1993364100%Yes
199435998%Yes
1995364100%Yes
1996365100%Yes
1997365100%Yes
199836299%Yes
1999364100%Yes
2000365100%Yes
200135998%Yes
200236099%Yes
200336399%Yes
200436399%Yes
200536399%Yes
200635998%Yes
2007365100%Yes
200836499%Yes
200932088%No
201035798%Yes
201136199%Yes
201235798%Yes
201335497%Yes
201435497%Yes
201535196%Yes
201635798%Yes
201735497%Yes
201835998%Yes
201936299%Yes
202035798%Yes
202135698%Yes
202236099%Yes
2023364100%Yes
202430583%No
202533391%Yes
202624367%No

Latest Records

20
Latest records at Dunlow 1 SW
DateStationRecordValueBeat old record byOld record stoodSignificance
17 August 2026Dunlow 1 SW, USdaily rain (Provisional)30.5 mm (1.2 in)2.6 mm (0.10 in)51 years22 of 100 (Routine)
16 August 2026Dunlow 1 SW, USdaily high min (Tie, Provisional)21.7 C (71.1 F)tie24 years3 of 100 (Routine)
19 July 2026Dunlow 1 SW, USdaily high min (Tie)22.2 C (72.0 F)tie29 years3 of 100 (Routine)
18 July 2026Dunlow 1 SW, USdaily high min (Tie)21.7 C (71.1 F)tie13 years2 of 100 (Routine)
4 July 2026Dunlow 1 SW, USdaily high max33.3 C (91.9 F)0.5 C (0.9 F)8 years8 of 100 (Routine)
1 July 2026Dunlow 1 SW, USdaily high min21.7 C (71.1 F)0.6 C (1.1 F)35 years17 of 100 (Routine)
27 June 2026Dunlow 1 SW, USdaily rain29.2 mm (1.1 in)3.0 mm (0.12 in)12 years10 of 100 (Routine)
19 June 2026Dunlow 1 SW, USdaily rain30.5 mm (1.2 in)1.8 mm (0.07 in)47 years20 of 100 (Routine)
19 June 2026Dunlow 1 SW, USdaily low max20.0 C (68.0 F)2.2 C (4.0 F)27 years19 of 100 (Routine)
16 June 2026Dunlow 1 SW, USdaily low max (Tie)21.7 C (71.1 F)tie24 years3 of 100 (Routine)
12 June 2026Dunlow 1 SW, USdaily high min21.7 C (71.1 F)0.6 C (1.1 F)52 years21 of 100 (Routine)
11 June 2026Dunlow 1 SW, USdaily high min (Tie)20.6 C (69.1 F)tie52 years5 of 100 (Routine)
28 May 2026Dunlow 1 SW, USdaily rain34.3 mm (1.4 in)0.8 mm (0.03 in)29 years13 of 100 (Routine)
16 April 2026Dunlow 1 SW, USdaily high max30.0 C (86.0 F)0.6 C (1.1 F)49 years19 of 100 (Routine)
15 April 2026Dunlow 1 SW, USdaily high min (Tie)16.1 C (61.0 F)tie53 years5 of 100 (Routine)
13 April 2026Dunlow 1 SW, USdaily high max30.0 C (86.0 F)0.6 C (1.1 F)48 years19 of 100 (Routine)
5 April 2026Dunlow 1 SW, USdaily high max30.0 C (86.0 F)2.2 C (4.0 F)40 years20 of 100 (Routine)
4 April 2026Dunlow 1 SW, USdaily high min18.3 C (64.9 F)3.3 C (5.9 F)52 years25 of 100 (Routine)
3 April 2026Dunlow 1 SW, USdaily high min17.2 C (63.0 F)1.6 C (2.9 F)37 years18 of 100 (Routine)
1 April 2026Dunlow 1 SW, USdaily high min16.1 C (61.0 F)0.5 C (0.9 F)19 years10 of 100 (Routine)

Climate Trend

44 complete years, 1972 to 2023
Annual mean temperature at Dunlow 1 SW as warming stripes, 1972 to 2023 One stripe for each of 44 complete years at Dunlow 1 SW, 1972 to 2023. Blue stripes are years cooler than the station's own mean of 12.5 C (54.6 F); red stripes are warmer. The coolest year was 1989, at 11.0 C (51.8 F), and the warmest was 1973, at 14.0 C (57.2 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1972: 12.8 C, +0.3 C from the station mean1973: 14.0 C, +1.5 C from the station mean1974: 13.3 C, +0.8 C from the station mean1975: 13.5 C, +1.0 C from the station mean1976: 12.6 C, +0.1 C from the station mean1978: 12.5 C, 0.0 C from the station mean1981: 11.3 C, -1.3 C from the station mean1983: 12.0 C, -0.5 C from the station mean1986: 11.1 C, -1.5 C from the station mean1987: 11.7 C, -0.9 C from the station mean1988: 11.8 C, -0.7 C from the station mean1989: 11.0 C, -1.5 C from the station mean1991: 13.5 C, +1.0 C from the station mean1992: 12.0 C, -0.6 C from the station mean1993: 12.0 C, -0.5 C from the station mean1994: 12.1 C, -0.5 C from the station mean1995: 11.8 C, -0.7 C from the station mean1996: 11.4 C, -1.2 C from the station mean1997: 11.4 C, -1.1 C from the station mean1998: 13.3 C, +0.8 C from the station mean1999: 13.0 C, +0.4 C from the station mean2000: 12.1 C, -0.5 C from the station mean2001: 12.7 C, +0.2 C from the station mean2002: 12.8 C, +0.3 C from the station mean2003: 12.0 C, -0.6 C from the station mean2004: 12.6 C, 0.0 C from the station mean2005: 12.6 C, +0.1 C from the station mean2006: 12.7 C, +0.1 C from the station mean2007: 13.5 C, +0.9 C from the station mean2008: 12.4 C, -0.1 C from the station mean2010: 12.1 C, -0.4 C from the station mean2011: 12.9 C, +0.3 C from the station mean2012: 13.6 C, +1.0 C from the station mean2013: 12.0 C, -0.5 C from the station mean2014: 11.5 C, -1.0 C from the station mean2015: 13.0 C, +0.4 C from the station mean2016: 13.6 C, +1.0 C from the station mean2017: 13.4 C, +0.9 C from the station mean2018: 13.2 C, +0.7 C from the station mean2019: 13.5 C, +0.9 C from the station mean2020: 13.2 C, +0.6 C from the station mean2021: 12.8 C, +0.3 C from the station mean2022: 12.5 C, -0.1 C from the station mean2023: 13.3 C, +0.7 C from the station mean19721975198019851990199520002005201020152020
One stripe for each of 44 complete years at Dunlow 1 SW, 1972 to 2023. Blue stripes are years cooler than the station's own mean of 12.5 C (54.6 F); red stripes are warmer. The coolest year was 1989, at 11.0 C (51.8 F), and the warmest was 1973, at 14.0 C (57.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Dunlow 1 SW as warming stripes, 1972 to 2023
YearAnnual mean temperatureDifference from the station mean
197212.8 C+0.29 C
197314.0 C+1.45 C
197413.3 C+0.75 C
197513.5 C+0.97 C
197612.6 C+0.07 C
197812.5 C-0.01 C
198111.3 C-1.28 C
198312.0 C-0.51 C
198611.1 C-1.48 C
198711.7 C-0.86 C
198811.8 C-0.72 C
198911.0 C-1.54 C
199113.5 C+0.99 C
199212.0 C-0.57 C
199312.0 C-0.55 C
199412.1 C-0.47 C
199511.8 C-0.73 C
199611.4 C-1.18 C
199711.4 C-1.11 C
199813.3 C+0.79 C
199913.0 C+0.41 C
200012.1 C-0.46 C
200112.7 C+0.16 C
200212.8 C+0.29 C
200312.0 C-0.57 C
200412.6 C+0.03 C
200512.6 C+0.09 C
200612.7 C+0.14 C
200713.5 C+0.90 C
200812.4 C-0.15 C
201012.1 C-0.42 C
201112.9 C+0.31 C
201213.6 C+1.00 C
201312.0 C-0.54 C
201411.5 C-1.04 C
201513.0 C+0.44 C
201613.6 C+1.02 C
201713.4 C+0.85 C
201813.2 C+0.66 C
201913.5 C+0.94 C
202013.2 C+0.62 C
202112.8 C+0.27 C
202212.5 C-0.10 C
202313.3 C+0.71 C

The fitted trend in annual mean temperature here over 1972 to 2023 is 0.11 C (-0.05 to 0.27) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.5) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Dunlow 1 SW
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.11 C (-0.05 to 0.27) per decade0.2 F (-0.1 to 0.5) per decade1972 to 202344Not clearly different from zero
Mean daily maximum-0.1 C (-0.3 to 0.1) per decade-0.2 F (-0.5 to 0.1) per decade1972 to 202344Not clearly different from zero
Mean daily minimum0.3 C (0.1 to 0.5) per decade0.6 F (0.2 to 1.0) per decade1972 to 202344Rise

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

1971 to 2026
Yearly extremes at Dunlow 1 SW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)198833.3 C (91.9 F)56
Coldest night (TNn)-28.9 C (-20.0 F)1994-16.7 C (1.9 F)56
Wettest day (Rx1day)105.9 mm (4.2 in)197356.2 mm (2.2 in)56
Wettest five days (Rx5day)189.2 mm (7.4 in)197898.6 mm (3.9 in)56
Longest dry spell (CDD)39 days201916 days56

Hottest day (TXx)

Hottest day (TXx) at Dunlow 1 SW by year The hottest day of the year at Dunlow 1 SW, 1971 to 2026. The record is 37.8 C (100.0 F) in 1988, marked on the chart; the median year is 33.3 C (91.9 F). 303234363819801990200020102020Record: 37.8 C (100.0 F) in 1988
The hottest day of the year at Dunlow 1 SW, 1971 to 2026. The record is 37.8 C (100.0 F) in 1988, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Dunlow 1 SW by year
YearHottest day (TXx)
197133.3 C (91.9 F)
197232.8 C (91.0 F)
197336.1 C (97.0 F)
197431.7 C (89.1 F)
197535.0 C (95.0 F)
197633.3 C (91.9 F)
197735.6 C (96.1 F)
197835.0 C (95.0 F)
197932.2 C (90.0 F)
198035.6 C (96.1 F)
198132.8 C (91.0 F)
198231.7 C (89.1 F)
198335.6 C (96.1 F)
198433.3 C (91.9 F)
198532.2 C (90.0 F)
198633.9 C (93.0 F)
198733.9 C (93.0 F)
198837.8 C (100.0 F)
198932.8 C (91.0 F)
199033.3 C (91.9 F)
199133.3 C (91.9 F)
199230.6 C (87.1 F)
199333.3 C (91.9 F)
199433.3 C (91.9 F)
199533.9 C (93.0 F)
199630.6 C (87.1 F)
199731.7 C (89.1 F)
199832.8 C (91.0 F)
199935.0 C (95.0 F)
200032.2 C (90.0 F)
200132.2 C (90.0 F)
200233.3 C (91.9 F)
200332.2 C (90.0 F)
200431.1 C (88.0 F)
200533.9 C (93.0 F)
200633.3 C (91.9 F)
200736.7 C (98.1 F)
200833.3 C (91.9 F)
200931.7 C (89.1 F)
201033.9 C (93.0 F)
201133.3 C (91.9 F)
201237.2 C (99.0 F)
201332.2 C (90.0 F)
201431.7 C (89.1 F)
201532.8 C (91.0 F)
201634.4 C (93.9 F)
201732.2 C (90.0 F)
201836.7 C (98.1 F)
201935.0 C (95.0 F)
202033.3 C (91.9 F)
202132.8 C (91.0 F)
202233.3 C (91.9 F)
202332.8 C (91.0 F)
202436.7 C (98.1 F)
202533.3 C (91.9 F)
202633.3 C (91.9 F)

Coldest night (TNn)

Coldest night (TNn) at Dunlow 1 SW by year The coldest night of the year at Dunlow 1 SW, 1971 to 2026. The record is -28.9 C (-20.0 F) in 1994, marked on the chart; the median year is -16.7 C (1.9 F). -30-20-10019801990200020102020Record: -28.9 C (-20.0 F) in 1994
The coldest night of the year at Dunlow 1 SW, 1971 to 2026. The record is -28.9 C (-20.0 F) in 1994, marked on the chart; the median year is -16.7 C (1.9 F).
Coldest night (TNn) at Dunlow 1 SW by year
YearColdest night (TNn)
1971-8.3 C (17.1 F)
1972-23.9 C (-11.0 F)
1973-17.8 C (0.0 F)
1974-11.1 C (12.0 F)
1975-13.9 C (7.0 F)
1976-17.8 C (0.0 F)
1977-24.4 C (-11.9 F)
1978-20.6 C (-5.1 F)
1979-23.3 C (-9.9 F)
1980-22.2 C (-8.0 F)
1981-20.6 C (-5.1 F)
1982-27.8 C (-18.0 F)
1983-26.1 C (-15.0 F)
1984-26.1 C (-15.0 F)
1985-20.6 C (-5.1 F)
1986-23.3 C (-9.9 F)
1987-19.4 C (-2.9 F)
1988-19.4 C (-2.9 F)
1989-24.4 C (-11.9 F)
1990-12.8 C (9.0 F)
1991-16.7 C (1.9 F)
1992-16.7 C (1.9 F)
1993-13.9 C (7.0 F)
1994-28.9 C (-20.0 F)
1995-16.1 C (3.0 F)
1996-22.8 C (-9.0 F)
1997-16.1 C (3.0 F)
1998-11.7 C (10.9 F)
1999-16.1 C (3.0 F)
2000-16.7 C (1.9 F)
2001-12.2 C (10.0 F)
2002-12.8 C (9.0 F)
2003-14.4 C (6.1 F)
2004-18.3 C (-0.9 F)
2005-15.6 C (3.9 F)
2006-15.6 C (3.9 F)
2007-17.8 C (0.0 F)
2008-16.1 C (3.0 F)
2009-18.9 C (-2.0 F)
2010-14.4 C (6.1 F)
2011-13.3 C (8.1 F)
2012-10.0 C (14.0 F)
2013-12.8 C (9.0 F)
2014-21.1 C (-6.0 F)
2015-22.8 C (-9.0 F)
2016-14.4 C (6.1 F)
2017-13.9 C (7.0 F)
2018-18.3 C (-0.9 F)
2019-17.2 C (1.0 F)
2020-12.2 C (10.0 F)
2021-10.0 C (14.0 F)
2022-18.9 C (-2.0 F)
2023-10.6 C (12.9 F)
2024-16.7 C (1.9 F)
2025-15.6 C (3.9 F)
2026-15.6 C (3.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Dunlow 1 SW by year The wettest day of the year at Dunlow 1 SW, 1971 to 2026. The record is 105.9 mm (4.2 in) in 1973, marked on the chart; the median year is 56.2 mm (2.2 in). 2040608010012019801990200020102020Record: 105.9 mm (4.2 in) in 1973
The wettest day of the year at Dunlow 1 SW, 1971 to 2026. The record is 105.9 mm (4.2 in) in 1973, marked on the chart; the median year is 56.2 mm (2.2 in).
Wettest day (Rx1day) at Dunlow 1 SW by year
YearWettest day (Rx1day)
197139.1 mm (1.5 in)
197277.7 mm (3.1 in)
1973105.9 mm (4.2 in)
197450.0 mm (2.0 in)
197564.8 mm (2.6 in)
197658.4 mm (2.3 in)
197758.4 mm (2.3 in)
197897.8 mm (3.9 in)
197953.8 mm (2.1 in)
198033.0 mm (1.3 in)
198138.9 mm (1.5 in)
198254.9 mm (2.2 in)
198350.8 mm (2.0 in)
198450.0 mm (2.0 in)
198550.8 mm (2.0 in)
198674.9 mm (2.9 in)
198743.2 mm (1.7 in)
198839.4 mm (1.6 in)
198963.5 mm (2.5 in)
199048.8 mm (1.9 in)
199164.0 mm (2.5 in)
199254.6 mm (2.1 in)
199371.1 mm (2.8 in)
199442.9 mm (1.7 in)
199549.5 mm (1.9 in)
199668.6 mm (2.7 in)
199765.5 mm (2.6 in)
199857.7 mm (2.3 in)
199952.8 mm (2.1 in)
200067.1 mm (2.6 in)
200140.4 mm (1.6 in)
200247.5 mm (1.9 in)
200371.1 mm (2.8 in)
200475.7 mm (3.0 in)
200554.6 mm (2.1 in)
200655.9 mm (2.2 in)
200743.9 mm (1.7 in)
200839.6 mm (1.6 in)
200957.2 mm (2.3 in)
201062.2 mm (2.4 in)
201153.3 mm (2.1 in)
201250.8 mm (2.0 in)
201352.8 mm (2.1 in)
201439.1 mm (1.5 in)
201556.4 mm (2.2 in)
201659.7 mm (2.4 in)
201770.1 mm (2.8 in)
201856.9 mm (2.2 in)
201968.6 mm (2.7 in)
202048.3 mm (1.9 in)
202185.1 mm (3.4 in)
202272.6 mm (2.9 in)
202387.1 mm (3.4 in)
202449.8 mm (2.0 in)
202567.8 mm (2.7 in)
202661.7 mm (2.4 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Dunlow 1 SW by year The wettest five days of the year at Dunlow 1 SW, 1971 to 2026. The record is 189.2 mm (7.4 in) in 1978, marked on the chart; the median year is 98.6 mm (3.9 in). 05010015020019801990200020102020Record: 189.2 mm (7.4 in) in 1978
The wettest five days of the year at Dunlow 1 SW, 1971 to 2026. The record is 189.2 mm (7.4 in) in 1978, marked on the chart; the median year is 98.6 mm (3.9 in).
Wettest five days (Rx5day) at Dunlow 1 SW by year
YearWettest five days (Rx5day)
197173.9 mm (2.9 in)
1972121.3 mm (4.8 in)
1973167.8 mm (6.6 in)
1974102.2 mm (4.0 in)
197590.2 mm (3.6 in)
197686.7 mm (3.4 in)
1977111.0 mm (4.4 in)
1978189.2 mm (7.4 in)
1979107.7 mm (4.2 in)
198087.3 mm (3.4 in)
198144.7 mm (1.8 in)
198266.0 mm (2.6 in)
1983111.5 mm (4.4 in)
198491.2 mm (3.6 in)
198590.4 mm (3.6 in)
1986119.3 mm (4.7 in)
198775.0 mm (3.0 in)
198884.0 mm (3.3 in)
198999.1 mm (3.9 in)
199082.3 mm (3.2 in)
1991116.1 mm (4.6 in)
199255.9 mm (2.2 in)
199376.9 mm (3.0 in)
199490.9 mm (3.6 in)
199572.9 mm (2.9 in)
199684.6 mm (3.3 in)
199791.9 mm (3.6 in)
1998114.6 mm (4.5 in)
199967.6 mm (2.7 in)
2000121.2 mm (4.8 in)
200176.4 mm (3.0 in)
200291.5 mm (3.6 in)
2003121.1 mm (4.8 in)
2004110.0 mm (4.3 in)
200576.0 mm (3.0 in)
2006105.9 mm (4.2 in)
200779.5 mm (3.1 in)
200866.5 mm (2.6 in)
2009126.8 mm (5.0 in)
2010111.0 mm (4.4 in)
201184.0 mm (3.3 in)
2012105.4 mm (4.1 in)
2013104.9 mm (4.1 in)
201473.0 mm (2.9 in)
201579.3 mm (3.1 in)
2016101.6 mm (4.0 in)
2017136.9 mm (5.4 in)
2018123.2 mm (4.9 in)
2019104.3 mm (4.1 in)
202098.1 mm (3.9 in)
2021122.1 mm (4.8 in)
2022107.1 mm (4.2 in)
2023114.4 mm (4.5 in)
2024101.9 mm (4.0 in)
2025127.5 mm (5.0 in)
202672.6 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Dunlow 1 SW by year The longest dry spell of the year at Dunlow 1 SW, 1971 to 2026. The record is 39 days in 2019, marked on the chart; the median year is 16 days. 01020304019801990200020102020Record: 39 days in 2019
The longest dry spell of the year at Dunlow 1 SW, 1971 to 2026. The record is 39 days in 2019, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Dunlow 1 SW by year
YearLongest dry spell (CDD)
197115 days
197219 days
197319 days
197416 days
197513 days
197614 days
197716 days
197813 days
197912 days
198015 days
198124 days
19829 days
198314 days
198418 days
198526 days
198624 days
198719 days
198824 days
198918 days
199015 days
199124 days
199214 days
199321 days
199413 days
199512 days
19969 days
199715 days
199813 days
199921 days
200019 days
200116 days
200218 days
200315 days
200412 days
200516 days
200622 days
200717 days
200812 days
200916 days
201016 days
20119 days
201214 days
201310 days
201417 days
201520 days
201615 days
201722 days
201812 days
201939 days
202014 days
202110 days
202211 days
202318 days
202415 days
202516 days
202613 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

44 years with a frost

Across 44 years with a frost, the median last spring frost at Dunlow 1 SW falls on 18 April and the median first autumn frost on 19 October, which leaves a median of 186 days between them.

Fitted over all years, the growing season changes by +6.2 days per decade at this station.

Frost dates and growing season at Dunlow 1 SW
MeasureMedian, all yearsEarliest periodRecent period (1993 to 2023)Recent against earliestFitted trend
Last spring frost18 Apriln/a13 Apriln/a-2.0 days per decade
First autumn frost19 Octobern/a26 Octobern/a+4.2 days per decade
Growing days186 daysn/a192 daysn/a+6.2 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.

Rainfall Return Levels

50 years, 1972 to 2025

A day with at least 57.3 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 106.4 mm (4.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Dunlow 1 SW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years57.3 mm (2.3 in)
5 years70.6 mm (2.8 in)
10 years79.4 mm (3.1 in)
25 years90.4 mm (3.6 in)
50 years98.4 mm (3.9 in)
100 years106.4 mm (4.2 in)Longer than the 50 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, 50 years of values from 1972 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: 105.9 mm (4.2 in) in 1973; 97.8 mm (3.9 in) in 1978; 87.1 mm (3.4 in) in 2023.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Dunlow 1 SW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Dunlow 1 SW 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).