Built 2026-10-15 (15 October 2026)

Dekalb Weather Records (USC00412352)

Record envelope, standing records and threshold days for Dekalb (USC00412352), Texas, United States, with 74 years of record.

Key Facts for Dekalb

  • Dekalb (USC00412352) is a weather station in Texas, United States at 33.48 latitude and -94.62 longitude, 104 m (341 ft) above sea level.
  • The station reports from 1944 to 2017, 74 years of record.
  • 1,464 records set at Dekalb still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Dekalb set a daily record precipitation of 63.5 mm (2.5 in) on 15 January 2017.

About the Station

  • Location: Texas, United States, 33.48 latitude, -94.62 longitude.
  • Elevation: 104 m (341 ft).
  • Period of record: 1944 to 2017, 74 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Dekalb, with 2026 drawn through them The band shows the record high and record low for each calendar day at Dekalb. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Dekalb. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Dekalb, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan27.8 C (82.0 F)-12.8 C (9.0 F)n/an/a
Feb32.8 C (91.0 F)-14.4 C (6.1 F)n/an/a
Mar31.7 C (89.1 F)-10.0 C (14.0 F)n/an/a
Apr35.0 C (95.0 F)-1.7 C (28.9 F)n/an/a
May35.6 C (96.1 F)1.7 C (35.1 F)n/an/a
Jun40.0 C (104.0 F)7.8 C (46.0 F)n/an/a
Jul40.6 C (105.1 F)13.3 C (55.9 F)n/an/a
Aug43.9 C (111.0 F)8.3 C (46.9 F)n/an/a
Sep43.3 C (109.9 F)1.7 C (35.1 F)n/an/a
Oct35.0 C (95.0 F)-4.4 C (24.1 F)n/an/a
Nov31.7 C (89.1 F)-8.3 C (17.1 F)n/an/a
Dec27.8 C (82.0 F)-19.4 C (-2.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Dekalb by the year they were set 1,464 records at Dekalb still stand. 2000 holds the most, with 78. 0204060801980: 411981: 381982: 71983: 761984: 261985: 211986: 481987: 331988: 511989: 661990: 521991: 441992: 391993: 281994: 401995: 401996: 581997: 421998: 721999: 442000: 782001: 432002: 352005: 142006: 562007: 172008: 62010: 342011: 742012: 532013: 322014: 452015: 492016: 432017: 19198019841988199219962000200620112015
1,464 records at Dekalb still stand. 2000 holds the most, with 78.
Standing records at Dekalb by the year they were set
Year setStanding records
198041
198138
19827
198376
198426
198521
198648
198733
198851
198966
199052
199144
199239
199328
199440
199540
199658
199742
199872
199944
200078
200143
200235
200514
200656
200717
20086
201034
201174
201253
201332
201445
201549
201643
201719

All-Time Record Progression

5 new records
When Dekalb set new all-time records 5 all-time records were set at Dekalb between 3 December 1982 and 6 February 2002. Each dot is a new record. Record daily precipitationRecord daily snowfallRecord snow depth3 December 1982: Record daily precipitation 189.2 mm (7.4 in)16 December 1983: Record daily snowfall 12.2 cm (4.8 in)28 January 2000: Record snow depth 15.2 cm (6.0 in)6 February 2002: Record daily snowfall 17.8 cm (7.0 in)6 February 2002: Record snow depth 17.8 cm (7.0 in)1985199019952000
5 all-time records were set at Dekalb between 3 December 1982 and 6 February 2002. Each dot is a new record.
When Dekalb set new all-time records
DateKindDetail
1982-12-03Record daily precipitationRecord daily precipitation 189.2 mm (7.4 in)
1983-12-16Record daily snowfallRecord daily snowfall 12.2 cm (4.8 in)
2000-01-28Record snow depthRecord snow depth 15.2 cm (6.0 in)
2002-02-06Record daily snowfallRecord daily snowfall 17.8 cm (7.0 in)
2002-02-06Record snow depthRecord snow depth 17.8 cm (7.0 in)

Wettest Day of Each Month

Dec: 189.2 mm (7.4 in)
Record daily precipitation for each month at Dekalb The wettest day on record for each calendar month at Dekalb. The most was 189.2 mm (7.4 in) on 3 December 1982. 050100150200 Jan: 106.7 mm (4.2 in), 14 January 2007 Jan Feb: 127.0 mm (5.0 in), 4 February 2011 Feb Mar: 160.0 mm (6.3 in), 30 March 1945 Mar Apr: 123.4 mm (4.9 in), 26 April 1966 Apr May: 120.7 mm (4.8 in), 7 May 2001 May Jun: 116.8 mm (4.6 in), 7 June 1974 Jun Jul: 156.2 mm (6.1 in), 5 July 1981 Jul Aug: 105.4 mm (4.1 in), 12 August 1966 Aug Sep: 108.2 mm (4.3 in), 12 September 1998 Sep Oct: 182.1 mm (7.2 in), 28 October 1991 Oct Nov: 154.9 mm (6.1 in), 4 November 1994 Nov Dec: 189.2 mm (7.4 in), 3 December 1982 Dec
The wettest day on record for each calendar month at Dekalb. The most was 189.2 mm (7.4 in) on 3 December 1982.
Record daily precipitation for each month at Dekalb
MonthRecord daily precipitation (mm)Date
Jan106.7 mm (4.2 in)14 January 2007
Feb127.0 mm (5.0 in)4 February 2011
Mar160.0 mm (6.3 in)30 March 1945
Apr123.4 mm (4.9 in)26 April 1966
May120.7 mm (4.8 in)7 May 2001
Jun116.8 mm (4.6 in)7 June 1974
Jul156.2 mm (6.1 in)5 July 1981
Aug105.4 mm (4.1 in)12 August 1966
Sep108.2 mm (4.3 in)12 September 1998
Oct182.1 mm (7.2 in)28 October 1991
Nov154.9 mm (6.1 in)4 November 1994
Dec189.2 mm (7.4 in)3 December 1982

Period of Record Coverage

1980 to 2017
Days with data per year at Dekalb 35 years of record at Dekalb, 1980 to 2017. 12 years have data for under 90 percent of days and are left out of rankings: 1980, 1982, 1984, 1985, 1999, 2002, 2005, 2007 and others. 1980: 274 of 366 days1981: 365 of 365 days1982: 60 of 365 days1983: 360 of 365 days1984: 175 of 366 days1985: 121 of 365 days1986: 358 of 365 days1987: 363 of 365 days1988: 362 of 366 days1989: 363 of 365 days1990: 362 of 365 days1991: 358 of 365 days1992: 332 of 366 days1993: 335 of 365 days1994: 351 of 365 days1995: 363 of 365 days1996: 354 of 366 days1997: 348 of 365 days1998: 353 of 365 days1999: 266 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 304 of 365 days2005: 82 of 365 days2006: 346 of 365 days2007: 264 of 365 days2008: 29 of 366 days2010: 243 of 365 days2011: 364 of 365 days2012: 357 of 366 days2013: 293 of 365 days2014: 365 of 365 days2015: 363 of 365 days2016: 352 of 366 days2017: 56 of 365 days19801985199019952000200520102015
35 years of record at Dekalb, 1980 to 2017. 12 years have data for under 90 percent of days and are left out of rankings: 1980, 1982, 1984, 1985, 1999, 2002, 2005, 2007 and others.
Days with data per year at Dekalb
YearDays with dataShare of yearComplete
198027475%No
1981365100%Yes
19826016%No
198336099%Yes
198417548%No
198512133%No
198635898%Yes
198736399%Yes
198836299%Yes
198936399%Yes
199036299%Yes
199135898%Yes
199233291%Yes
199333592%Yes
199435196%Yes
199536399%Yes
199635497%Yes
199734895%Yes
199835397%Yes
199926673%No
2000366100%Yes
2001365100%Yes
200230483%No
20058222%No
200634695%Yes
200726472%No
2008298%No
201024367%No
2011364100%Yes
201235798%Yes
201329380%No
2014365100%Yes
201536399%Yes
201635296%Yes
20175615%No

Latest Records

20
Latest records at Dekalb
DateStationRecordValueBeat old record byOld record stoodSignificance
15 January 2017Dekalb, USdaily rain63.5 mm (2.5 in)24.6 mm (1.0 in)58 years40 of 100 (Notable)
24 December 2016Dekalb, USdaily rain96.5 mm (3.8 in)53.3 mm (2.1 in)29 years39 of 100 (Notable)
16 August 2016Dekalb, USdaily rain39.6 mm (1.6 in)6.3 mm (0.25 in)68 years31 of 100 (Routine)
1 June 2016Dekalb, USdaily rain50.3 mm (2.0 in)1.8 mm (0.07 in)20 years14 of 100 (Routine)
30 April 2016Dekalb, USdaily rain50.8 mm (2.0 in)13.5 mm (0.5 in)58 years31 of 100 (Routine)
18 April 2016Dekalb, USdaily rain58.4 mm (2.3 in)27.9 mm (1.1 in)28 years30 of 100 (Routine)
9 March 2016Dekalb, USdaily rain79.5 mm (3.1 in)29.2 mm (1.1 in)48 years37 of 100 (Notable)
22 February 2016Dekalb, USdaily rain57.7 mm (2.3 in)27.0 mm (1.1 in)46 years39 of 100 (Notable)
15 February 2016Dekalb, USdaily rain50.8 mm (2.0 in)8.9 mm (0.35 in)26 years20 of 100 (Routine)
28 December 2015Dekalb, USdaily rain152.4 mm (6.0 in)98.6 mm (3.9 in)48 years61 of 100 (Major)
14 December 2015Dekalb, USdaily rain127.0 mm (5.0 in)25.4 mm (1.0 in)22 years25 of 100 (Routine)
13 December 2015Dekalb, USdaily rain53.3 mm (2.1 in)0.5 mm (0.02 in)28 years15 of 100 (Routine)
28 November 2015Dekalb, USdaily rain50.8 mm (2.0 in)5.6 mm (0.22 in)17 years14 of 100 (Routine)
24 October 2015Dekalb, USdaily rain50.8 mm (2.0 in)2.3 mm (0.09 in)65 years26 of 100 (Routine)
25 April 2015Dekalb, USdaily rain45.7 mm (1.8 in)4.0 mm (0.16 in)17 years14 of 100 (Routine)
10 March 2015Dekalb, USdaily rain54.6 mm (2.1 in)21.6 mm (0.9 in)61 years36 of 100 (Notable)
5 March 2015Dekalb, USmonthly snowfall5.1 cm (2.0 in)2.6 cm (1.0 in)44 years34 of 100 (Routine)
5 March 2015Dekalb, USmonthly snow depth5.1 cm (2.0 in)2.6 cm (1.0 in)44 years20 of 100 (Routine)
26 February 2015Dekalb, USdaily snowfall10.2 cm (4.0 in)10.2 cm (4.0 in)67 years46 of 100 (Notable)
26 February 2015Dekalb, USdaily snow depth7.6 cm (3.0 in)5.1 cm (2.0 in)55 years20 of 100 (Routine)

Climate Trend

18 complete years, 1981 to 2016
Annual mean temperature at Dekalb as warming stripes, 1981 to 2016 One stripe for each of 18 complete years at Dekalb, 1981 to 2016. Blue stripes are years cooler than the station's own mean of 18.0 C (64.3 F); red stripes are warmer. The coolest year was 2014, at 16.1 C (61.0 F), and the warmest was 1998, at 19.4 C (66.9 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1981: 17.5 C, -0.4 C from the station mean1986: 18.6 C, +0.6 C from the station mean1987: 18.2 C, +0.2 C from the station mean1988: 17.8 C, -0.2 C from the station mean1989: 17.3 C, -0.7 C from the station mean1990: 18.7 C, +0.7 C from the station mean1991: 18.2 C, +0.2 C from the station mean1994: 17.9 C, -0.1 C from the station mean1995: 18.0 C, 0.0 C from the station mean1996: 17.9 C, -0.1 C from the station mean1997: 17.6 C, -0.4 C from the station mean1998: 19.4 C, +1.4 C from the station mean2000: 17.2 C, -0.8 C from the station mean2001: 17.3 C, -0.7 C from the station mean2011: 18.1 C, +0.2 C from the station mean2012: 18.6 C, +0.6 C from the station mean2014: 16.1 C, -1.9 C from the station mean2016: 19.2 C, +1.2 C from the station mean19811985199019952000200520102015
One stripe for each of 18 complete years at Dekalb, 1981 to 2016. Blue stripes are years cooler than the station's own mean of 18.0 C (64.3 F); red stripes are warmer. The coolest year was 2014, at 16.1 C (61.0 F), and the warmest was 1998, at 19.4 C (66.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Dekalb as warming stripes, 1981 to 2016
YearAnnual mean temperatureDifference from the station mean
198117.5 C-0.43 C
198618.6 C+0.64 C
198718.2 C+0.20 C
198817.8 C-0.21 C
198917.3 C-0.66 C
199018.7 C+0.73 C
199118.2 C+0.23 C
199417.9 C-0.10 C
199518.0 C-0.02 C
199617.9 C-0.06 C
199717.6 C-0.42 C
199819.4 C+1.44 C
200017.2 C-0.81 C
200117.3 C-0.70 C
201118.1 C+0.17 C
201218.6 C+0.63 C
201416.1 C-1.87 C
201619.2 C+1.20 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

1944 to 2017
Yearly extremes at Dekalb: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)201138.9 C (102.0 F)35
Coldest night (TNn)-19.4 C (-2.9 F)1989-9.4 C (15.1 F)35
Wettest day (Rx1day)189.2 mm (7.4 in)198286.4 mm (3.4 in)70
Wettest five days (Rx5day)270.5 mm (10.6 in)1989139.2 mm (5.5 in)69
Longest dry spell (CDD)63 days200026 days70

Hottest day (TXx)

Hottest day (TXx) at Dekalb by year The hottest day of the year at Dekalb, 1944 to 2017. The record is 43.9 C (111.0 F) in 2011, marked on the chart; the median year is 38.9 C (102.0 F). 2530354045196019802000Record: 43.9 C (111.0 F) in 2011
The hottest day of the year at Dekalb, 1944 to 2017. The record is 43.9 C (111.0 F) in 2011, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Dekalb by year
YearHottest day (TXx)
1944n/a
1945n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
198041.7 C (107.1 F)
198137.8 C (100.0 F)
198228.3 C (82.9 F)
198337.8 C (100.0 F)
198437.2 C (99.0 F)
198541.1 C (106.0 F)
198640.0 C (104.0 F)
198738.9 C (102.0 F)
198838.3 C (100.9 F)
198936.1 C (97.0 F)
199039.4 C (102.9 F)
199136.1 C (97.0 F)
199235.6 C (96.1 F)
199338.9 C (102.0 F)
199435.6 C (96.1 F)
199538.9 C (102.0 F)
199637.2 C (99.0 F)
199737.8 C (100.0 F)
199840.6 C (105.1 F)
199941.7 C (107.1 F)
200043.3 C (109.9 F)
200139.4 C (102.9 F)
200238.9 C (102.0 F)
200532.8 C (91.0 F)
200640.0 C (104.0 F)
200732.8 C (91.0 F)
200825.0 C (77.0 F)
201040.0 C (104.0 F)
201143.9 C (111.0 F)
201240.0 C (104.0 F)
201338.9 C (102.0 F)
201436.1 C (97.0 F)
201540.0 C (104.0 F)
201640.0 C (104.0 F)
201731.7 C (89.1 F)

Coldest night (TNn)

Coldest night (TNn) at Dekalb by year The coldest night of the year at Dekalb, 1944 to 2017. The record is -19.4 C (-2.9 F) in 1989, marked on the chart; the median year is -9.4 C (15.1 F). -20-15-10-5196019802000Record: -19.4 C (-2.9 F) in 1989
The coldest night of the year at Dekalb, 1944 to 2017. The record is -19.4 C (-2.9 F) in 1989, marked on the chart; the median year is -9.4 C (15.1 F).
Coldest night (TNn) at Dekalb by year
YearColdest night (TNn)
1944n/a
1945n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980-9.4 C (15.1 F)
1981-12.8 C (9.0 F)
1982-6.7 C (19.9 F)
1983-16.1 C (3.0 F)
1984-12.8 C (9.0 F)
1985-9.4 C (15.1 F)
1986-7.8 C (18.0 F)
1987-5.6 C (21.9 F)
1988-10.0 C (14.0 F)
1989-19.4 C (-2.9 F)
1990-12.2 C (10.0 F)
1991-7.2 C (19.0 F)
1992-5.6 C (21.9 F)
1993-6.7 C (19.9 F)
1994-7.2 C (19.0 F)
1995-9.4 C (15.1 F)
1996-14.4 C (6.1 F)
1997-9.4 C (15.1 F)
1998-6.1 C (21.0 F)
1999-8.9 C (16.0 F)
2000-12.8 C (9.0 F)
2001-12.2 C (10.0 F)
2002-10.0 C (14.0 F)
2005-10.6 C (12.9 F)
2006-8.9 C (16.0 F)
2007-5.0 C (23.0 F)
2008-7.2 C (19.0 F)
2010-8.9 C (16.0 F)
2011-10.6 C (12.9 F)
2012-10.0 C (14.0 F)
2013-6.1 C (21.0 F)
2014-10.6 C (12.9 F)
2015-10.0 C (14.0 F)
2016-8.3 C (17.1 F)
2017-11.1 C (12.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Dekalb by year The wettest day of the year at Dekalb, 1944 to 2017. The record is 189.2 mm (7.4 in) in 1982, marked on the chart; the median year is 86.4 mm (3.4 in). 050100150200196019802000Record: 189.2 mm (7.4 in) in 1982
The wettest day of the year at Dekalb, 1944 to 2017. The record is 189.2 mm (7.4 in) in 1982, marked on the chart; the median year is 86.4 mm (3.4 in).
Wettest day (Rx1day) at Dekalb by year
YearWettest day (Rx1day)
194429.5 mm (1.2 in)
1945160.0 mm (6.3 in)
194781.0 mm (3.2 in)
194883.3 mm (3.3 in)
1949105.9 mm (4.2 in)
195079.8 mm (3.1 in)
195158.7 mm (2.3 in)
1952118.1 mm (4.6 in)
195379.2 mm (3.1 in)
195490.7 mm (3.6 in)
195576.2 mm (3.0 in)
195655.1 mm (2.2 in)
195777.7 mm (3.1 in)
195878.2 mm (3.1 in)
195965.0 mm (2.6 in)
196073.7 mm (2.9 in)
196157.2 mm (2.3 in)
196290.4 mm (3.6 in)
196364.8 mm (2.6 in)
1964107.4 mm (4.2 in)
196593.5 mm (3.7 in)
1966123.4 mm (4.9 in)
196768.8 mm (2.7 in)
196865.0 mm (2.6 in)
196983.6 mm (3.3 in)
197066.5 mm (2.6 in)
197164.8 mm (2.6 in)
197251.8 mm (2.0 in)
1973105.4 mm (4.1 in)
1974116.8 mm (4.6 in)
197583.8 mm (3.3 in)
197679.8 mm (3.1 in)
197756.1 mm (2.2 in)
197882.6 mm (3.3 in)
1979114.3 mm (4.5 in)
198089.2 mm (3.5 in)
1981156.2 mm (6.1 in)
1982189.2 mm (7.4 in)
198364.8 mm (2.6 in)
198450.8 mm (2.0 in)
1985109.2 mm (4.3 in)
198696.5 mm (3.8 in)
1987132.1 mm (5.2 in)
198888.9 mm (3.5 in)
1989116.8 mm (4.6 in)
1990139.7 mm (5.5 in)
1991182.1 mm (7.2 in)
1992101.6 mm (4.0 in)
1993175.3 mm (6.9 in)
1994154.9 mm (6.1 in)
1995111.8 mm (4.4 in)
199663.5 mm (2.5 in)
1997108.5 mm (4.3 in)
1998108.2 mm (4.3 in)
199975.2 mm (3.0 in)
200090.4 mm (3.6 in)
2001120.7 mm (4.8 in)
200295.5 mm (3.8 in)
200537.6 mm (1.5 in)
200692.7 mm (3.6 in)
2007106.7 mm (4.2 in)
200820.8 mm (0.8 in)
201053.3 mm (2.1 in)
2011127.0 mm (5.0 in)
201254.6 mm (2.1 in)
201382.6 mm (3.3 in)
201476.2 mm (3.0 in)
2015152.4 mm (6.0 in)
201696.5 mm (3.8 in)
201763.5 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Dekalb by year The wettest five days of the year at Dekalb, 1944 to 2017. The record is 270.5 mm (10.6 in) in 1989, marked on the chart; the median year is 139.2 mm (5.5 in). 0100200300196019802000Record: 270.5 mm (10.6 in) in 1989
The wettest five days of the year at Dekalb, 1944 to 2017. The record is 270.5 mm (10.6 in) in 1989, marked on the chart; the median year is 139.2 mm (5.5 in).
Wettest five days (Rx5day) at Dekalb by year
YearWettest five days (Rx5day)
1944n/a
1945218.4 mm (8.6 in)
1947145.7 mm (5.7 in)
1948104.6 mm (4.1 in)
1949165.6 mm (6.5 in)
1950255.6 mm (10.1 in)
1951125.7 mm (4.9 in)
1952132.1 mm (5.2 in)
1953160.6 mm (6.3 in)
1954130.0 mm (5.1 in)
1955154.4 mm (6.1 in)
1956103.7 mm (4.1 in)
1957173.2 mm (6.8 in)
1958251.7 mm (9.9 in)
1959102.1 mm (4.0 in)
1960139.2 mm (5.5 in)
1961105.4 mm (4.1 in)
1962101.3 mm (4.0 in)
196396.8 mm (3.8 in)
1964116.6 mm (4.6 in)
1965148.5 mm (5.8 in)
1966241.0 mm (9.5 in)
196793.1 mm (3.7 in)
1968162.4 mm (6.4 in)
1969103.4 mm (4.1 in)
197089.6 mm (3.5 in)
1971162.7 mm (6.4 in)
1972118.8 mm (4.7 in)
1973117.0 mm (4.6 in)
1974189.2 mm (7.4 in)
1975136.5 mm (5.4 in)
1976141.3 mm (5.6 in)
197786.1 mm (3.4 in)
1978184.2 mm (7.3 in)
1979135.1 mm (5.3 in)
1980173.1 mm (6.8 in)
1981199.6 mm (7.9 in)
1982202.5 mm (8.0 in)
198394.2 mm (3.7 in)
198467.9 mm (2.7 in)
1985186.7 mm (7.4 in)
1986135.9 mm (5.4 in)
1987210.8 mm (8.3 in)
1988137.0 mm (5.4 in)
1989270.5 mm (10.6 in)
1990195.1 mm (7.7 in)
1991247.4 mm (9.7 in)
1992118.2 mm (4.7 in)
1993260.8 mm (10.3 in)
1994161.0 mm (6.3 in)
1995111.8 mm (4.4 in)
1996127.5 mm (5.0 in)
1997129.9 mm (5.1 in)
1998218.0 mm (8.6 in)
1999109.7 mm (4.3 in)
2000173.9 mm (6.8 in)
2001156.7 mm (6.2 in)
2002104.7 mm (4.1 in)
200537.6 mm (1.5 in)
2006148.5 mm (5.8 in)
2007189.3 mm (7.5 in)
200832.2 mm (1.3 in)
201096.5 mm (3.8 in)
2011167.6 mm (6.6 in)
201291.7 mm (3.6 in)
2013107.9 mm (4.2 in)
2014127.3 mm (5.0 in)
2015184.9 mm (7.3 in)
2016165.1 mm (6.5 in)
2017211.4 mm (8.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Dekalb by year The longest dry spell of the year at Dekalb, 1944 to 2017. The record is 63 days in 2000, marked on the chart; the median year is 26 days. 020406080196019802000Record: 63 days in 2000
The longest dry spell of the year at Dekalb, 1944 to 2017. The record is 63 days in 2000, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Dekalb by year
YearLongest dry spell (CDD)
19441 day
194513 days
194726 days
194821 days
194921 days
195039 days
195120 days
195233 days
195340 days
195426 days
195529 days
195649 days
195720 days
195817 days
195923 days
196016 days
196118 days
196227 days
196326 days
196423 days
196521 days
196616 days
196716 days
196819 days
196921 days
197027 days
197135 days
197223 days
197314 days
197422 days
197534 days
197629 days
197725 days
197826 days
197927 days
198034 days
198120 days
198211 days
198327 days
198412 days
198519 days
198628 days
198729 days
198834 days
198923 days
199037 days
199130 days
199216 days
199328 days
199432 days
199527 days
199624 days
199721 days
199822 days
199921 days
200063 days
200125 days
200232 days
200531 days
200632 days
200730 days
200817 days
201021 days
201150 days
201233 days
201321 days
201433 days
201545 days
201639 days
201714 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.

Rainfall Return Levels

57 years, 1948 to 2016

A day with at least 89.7 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 197.2 mm (7.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Dekalb: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years89.7 mm (3.5 in)
5 years117.3 mm (4.6 in)
10 years136.1 mm (5.4 in)
25 years160.3 mm (6.3 in)
50 years178.7 mm (7.0 in)
100 years197.2 mm (7.8 in)Longer than the 57 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, 57 years of values from 1948 to 2016.

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: 182.1 mm (7.2 in) in 1991; 175.3 mm (6.9 in) in 1993; 156.2 mm (6.1 in) in 1981.

Download the Data

  • Data for Dekalb standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Dekalb 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 (2025-12-31).