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Built 2026-10-14 (14 October 2026)

Jamestown Weather Records (USC00404590)

Record envelope, standing records and threshold days for Jamestown (USC00404590), Tennessee, United States, with 76 years of record.

Key Facts for Jamestown

  • Jamestown (USC00404590) is a weather station in Tennessee, United States at 36.43 latitude and -84.94 longitude, 515 m (1,690 ft) above sea level.
  • The station reports from 1951 to 2026, 76 years of record.
  • 1,464 records set at Jamestown still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Jamestown set a daily record precipitation of 71.1 mm (2.8 in) on 28 July 2026.

About the Station

  • Location: Tennessee, United States, 36.43 latitude, -84.94 longitude.
  • Elevation: 515 m (1,690 ft).
  • Period of record: 1951 to 2026, 76 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

24 days at or beyond a record
Daily record high and record low at Jamestown, with 2026 drawn through them The band shows the record high and record low for each calendar day at Jamestown. The lines show the 2026 daily maximum and minimum. 24 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 Jamestown. The lines show the 2026 daily maximum and minimum. 24 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Jamestown, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.8 C (73.0 F)-22.8 C (-9.0 F)18.3 C (64.9 F)-17.8 C (0.0 F)
Feb25.6 C (78.1 F)-21.7 C (-7.1 F)22.2 C (72.0 F)-15.0 C (5.0 F)
Mar28.9 C (84.0 F)-13.9 C (7.0 F)28.9 C (84.0 F)-5.6 C (21.9 F)
Apr30.6 C (87.1 F)-8.9 C (16.0 F)28.9 C (84.0 F)0.6 C (33.1 F)
May31.7 C (89.1 F)-2.8 C (27.0 F)30.0 C (86.0 F)1.7 C (35.1 F)
Jun39.4 C (102.9 F)5.6 C (42.1 F)31.1 C (88.0 F)10.0 C (50.0 F)
Jul38.3 C (100.9 F)9.4 C (48.9 F)33.3 C (91.9 F)16.7 C (62.1 F)
Aug37.8 C (100.0 F)7.2 C (45.0 F)32.8 C (91.0 F)11.1 C (52.0 F)
Sep35.0 C (95.0 F)2.2 C (36.0 F)n/an/a
Oct33.3 C (91.9 F)-5.0 C (23.0 F)n/an/a
Nov27.2 C (81.0 F)-11.7 C (10.9 F)n/an/a
Dec23.9 C (75.0 F)-20.6 C (-5.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Jamestown by the year they were set 1,464 records at Jamestown still stand. 2007 holds the most, with 97. 02550751002003: 102004: 572005: 392006: 882007: 972008: 742009: 612010: 872011: 692012: 892013: 582014: 682015: 692016: 432017: 602018: 712019: 592020: 622021: 412022: 552023: 522024: 532025: 612026: 4120032006200920122015201820212024
1,464 records at Jamestown still stand. 2007 holds the most, with 97.
Standing records at Jamestown by the year they were set
Year setStanding records
200310
200457
200539
200688
200797
200874
200961
201087
201169
201289
201358
201468
201569
201643
201760
201871
201959
202062
202141
202255
202352
202453
202561
202641

All-Time Record Progression

2 new records
When Jamestown set new all-time records 2 all-time records were set at Jamestown between 15 March 1993 and 4 February 1998. Each dot is a new record. Record snow depthRecord daily snowfall15 March 1993: Record snow depth 50.8 cm (20.0 in)4 February 1998: Record daily snowfall 45.7 cm (18.0 in)1995
2 all-time records were set at Jamestown between 15 March 1993 and 4 February 1998. Each dot is a new record.
When Jamestown set new all-time records
DateKindDetail
1993-03-15Record snow depthRecord snow depth 50.8 cm (20.0 in)
1998-02-04Record daily snowfallRecord daily snowfall 45.7 cm (18.0 in)

Wettest Day of Each Month

Mar: 127.5 mm (5.0 in)
Record daily precipitation for each month at Jamestown The wettest day on record for each calendar month at Jamestown. The most was 127.5 mm (5.0 in) on 13 March 1975. 050100150 Jan: 83.8 mm (3.3 in), 11 January 1974 Jan Feb: 108.2 mm (4.3 in), 6 February 2004 Feb Mar: 127.5 mm (5.0 in), 13 March 1975 Mar Apr: 69.3 mm (2.7 in), 4 April 1977 Apr May: 101.3 mm (4.0 in), 7 May 1984 May Jun: 102.1 mm (4.0 in), 28 June 2018 Jun Jul: 109.7 mm (4.3 in), 31 July 2024 Jul Aug: 122.2 mm (4.8 in), 19 August 2010 Aug Sep: 110.5 mm (4.4 in), 30 September 1955 Sep Oct: 85.1 mm (3.4 in), 3 October 1962 Oct Nov: 118.4 mm (4.7 in), 27 November 1973 Nov Dec: 108.2 mm (4.3 in), 3 December 1991 Dec
The wettest day on record for each calendar month at Jamestown. The most was 127.5 mm (5.0 in) on 13 March 1975.
Record daily precipitation for each month at Jamestown
MonthRecord daily precipitation (mm)Date
Jan83.8 mm (3.3 in)11 January 1974
Feb108.2 mm (4.3 in)6 February 2004
Mar127.5 mm (5.0 in)13 March 1975
Apr69.3 mm (2.7 in)4 April 1977
May101.3 mm (4.0 in)7 May 1984
Jun102.1 mm (4.0 in)28 June 2018
Jul109.7 mm (4.3 in)31 July 2024
Aug122.2 mm (4.8 in)19 August 2010
Sep110.5 mm (4.4 in)30 September 1955
Oct85.1 mm (3.4 in)3 October 1962
Nov118.4 mm (4.7 in)27 November 1973
Dec108.2 mm (4.3 in)3 December 1991

Period of Record Coverage

2003 to 2026
Days with data per year at Jamestown 24 years of record at Jamestown, 2003 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 2003, 2015, 2017, 2022, 2023, 2026. 2003: 115 of 365 days2004: 351 of 366 days2005: 343 of 365 days2006: 346 of 365 days2007: 353 of 365 days2008: 352 of 366 days2009: 363 of 365 days2010: 363 of 365 days2011: 362 of 365 days2012: 361 of 366 days2013: 344 of 365 days2014: 341 of 365 days2015: 323 of 365 days2016: 330 of 366 days2017: 313 of 365 days2018: 348 of 365 days2019: 362 of 365 days2020: 361 of 366 days2021: 356 of 365 days2022: 325 of 365 days2023: 294 of 365 days2024: 330 of 366 days2025: 335 of 365 days2026: 239 of 365 days20052010201520202025
24 years of record at Jamestown, 2003 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 2003, 2015, 2017, 2022, 2023, 2026.
Days with data per year at Jamestown
YearDays with dataShare of yearComplete
200311532%No
200435196%Yes
200534394%Yes
200634695%Yes
200735397%Yes
200835296%Yes
200936399%Yes
201036399%Yes
201136299%Yes
201236199%Yes
201334494%Yes
201434193%Yes
201532388%No
201633090%Yes
201731386%No
201834895%Yes
201936299%Yes
202036199%Yes
202135698%Yes
202232589%No
202329481%No
202433090%Yes
202533592%Yes
202623965%No

Latest Records

20
Latest records at Jamestown
DateStationRecordValueBeat old record byOld record stoodSignificance
28 July 2026Jamestown, USdaily rain71.1 mm (2.8 in)19.8 mm (0.8 in)19 years26 of 100 (Routine)
27 July 2026Jamestown, USdaily rain74.9 mm (2.9 in)32.2 mm (1.3 in)40 years42 of 100 (Notable)
4 July 2026Jamestown, USdaily rain42.2 mm (1.7 in)2.8 mm (0.11 in)60 years27 of 100 (Routine)
27 June 2026Jamestown, USdaily rain74.9 mm (2.9 in)26.9 mm (1.1 in)32 years35 of 100 (Notable)
25 May 2026Jamestown, USdaily rain26.7 mm (1.1 in)4.9 mm (0.19 in)15 years14 of 100 (Routine)
17 March 2026Jamestown, USdaily snowfall3.8 cm (1.5 in)1.3 cm (0.5 in)20 years15 of 100 (Routine)
21 November 2025Jamestown, USdaily rain20.1 mm (0.8 in)0.3 mm (0.01 in)52 years20 of 100 (Routine)
11 November 2025Jamestown, USdaily snowfall1.8 cm (0.7 in)1.8 cm (0.7 in)74 years20 of 100 (Routine)
23 September 2025Jamestown, USdaily rain52.1 mm (2.1 in)3.6 mm (0.14 in)22 years15 of 100 (Routine)
6 April 2025Jamestown, USdaily rain36.8 mm (1.4 in)7.1 mm (0.28 in)68 years33 of 100 (Routine)
16 March 2025Jamestown, USdaily rain70.6 mm (2.8 in)19.8 mm (0.8 in)52 years37 of 100 (Notable)
10 January 2025Jamestown, USdaily snowfall7.6 cm (3.0 in)3.8 cm (1.5 in)14 years20 of 100 (Routine)
31 July 2024Jamestown, USmonthly rain109.7 mm (4.3 in)34.5 mm (1.4 in)36 years52 of 100 (Notable)
26 May 2024Jamestown, USdaily rain69.9 mm (2.8 in)39.7 mm (1.6 in)29 years44 of 100 (Notable)
23 May 2024Jamestown, USdaily rain54.4 mm (2.1 in)26.0 mm (1.0 in)50 years41 of 100 (Notable)
8 May 2024Jamestown, USdaily rain72.4 mm (2.9 in)22.6 mm (0.9 in)22 years29 of 100 (Routine)
15 January 2024Jamestown, USdaily snowfall14.7 cm (5.8 in)9.9 cm (3.9 in)44 years45 of 100 (Notable)
14 January 2024Jamestown, USdaily snowfall (Tie)6.4 cm (2.5 in)tie60 years6 of 100 (Routine)
7 August 2023Jamestown, USdaily rain31.5 mm (1.2 in)7.1 mm (0.28 in)61 years30 of 100 (Routine)
20 July 2023Jamestown, USdaily rain72.4 mm (2.9 in)38.4 mm (1.5 in)10 years38 of 100 (Notable)

Climate Trend

18 complete years, 2004 to 2021
Annual mean temperature at Jamestown as warming stripes, 2004 to 2021 One stripe for each of 18 complete years at Jamestown, 2004 to 2021. Blue stripes are years cooler than the station's own mean of 13.0 C (55.5 F); red stripes are warmer. The coolest year was 2014, at 11.9 C (53.4 F), and the warmest was 2016, at 13.9 C (57.1 F). The strongest colour marks a difference of 1.2 C (2.2 F). 2004: 12.8 C, -0.3 C from the station mean2005: 12.9 C, -0.2 C from the station mean2006: 13.3 C, +0.3 C from the station mean2007: 13.8 C, +0.7 C from the station mean2008: 12.4 C, -0.6 C from the station mean2009: 12.3 C, -0.7 C from the station mean2010: 12.2 C, -0.8 C from the station mean2011: 13.0 C, 0.0 C from the station mean2012: 13.8 C, +0.8 C from the station mean2013: 12.1 C, -1.0 C from the station mean2014: 11.9 C, -1.1 C from the station mean2015: 13.1 C, 0.0 C from the station mean2016: 13.9 C, +0.9 C from the station mean2017: 13.7 C, +0.7 C from the station mean2018: 13.3 C, +0.2 C from the station mean2019: 13.7 C, +0.7 C from the station mean2020: 13.4 C, +0.3 C from the station mean2021: 13.1 C, +0.1 C from the station mean200420062008201020122014201620182020
One stripe for each of 18 complete years at Jamestown, 2004 to 2021. Blue stripes are years cooler than the station's own mean of 13.0 C (55.5 F); red stripes are warmer. The coolest year was 2014, at 11.9 C (53.4 F), and the warmest was 2016, at 13.9 C (57.1 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Jamestown as warming stripes, 2004 to 2021
YearAnnual mean temperatureDifference from the station mean
200412.8 C-0.29 C
200512.9 C-0.16 C
200613.3 C+0.29 C
200713.8 C+0.73 C
200812.4 C-0.62 C
200912.3 C-0.72 C
201012.2 C-0.84 C
201113.0 C-0.01 C
201213.8 C+0.77 C
201312.1 C-0.99 C
201411.9 C-1.14 C
201513.1 C+0.01 C
201613.9 C+0.89 C
201713.7 C+0.67 C
201813.3 C+0.21 C
201913.7 C+0.69 C
202013.4 C+0.34 C
202113.1 C+0.10 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

1951 to 2026
Yearly extremes at Jamestown: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)201233.3 C (91.9 F)24
Coldest night (TNn)-22.8 C (-9.0 F)2024-17.2 C (1.0 F)24
Wettest day (Rx1day)127.5 mm (5.0 in)197571.1 mm (2.8 in)76
Wettest five days (Rx5day)203.9 mm (8.0 in)1991122.4 mm (4.8 in)76
Longest dry spell (CDD)31 days202416 days76

Hottest day (TXx)

Hottest day (TXx) at Jamestown by year The hottest day of the year at Jamestown, 1951 to 2026. The record is 39.4 C (102.9 F) in 2012, marked on the chart; the median year is 33.3 C (91.9 F). 3032.53537.5401960198020002020Record: 39.4 C (102.9 F) in 2012
The hottest day of the year at Jamestown, 1951 to 2026. The record is 39.4 C (102.9 F) in 2012, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Jamestown by year
YearHottest day (TXx)
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
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
200332.2 C (90.0 F)
200430.0 C (86.0 F)
200532.8 C (91.0 F)
200633.9 C (93.0 F)
200737.8 C (100.0 F)
200833.3 C (91.9 F)
200931.1 C (88.0 F)
201033.9 C (93.0 F)
201135.0 C (95.0 F)
201239.4 C (102.9 F)
201331.1 C (88.0 F)
201431.7 C (89.1 F)
201531.7 C (89.1 F)
201632.8 C (91.0 F)
201732.2 C (90.0 F)
201833.9 C (93.0 F)
201934.4 C (93.9 F)
202032.8 C (91.0 F)
202132.2 C (90.0 F)
202233.9 C (93.0 F)
202333.9 C (93.0 F)
202434.4 C (93.9 F)
202534.4 C (93.9 F)
202633.3 C (91.9 F)

Coldest night (TNn)

Coldest night (TNn) at Jamestown by year The coldest night of the year at Jamestown, 1951 to 2026. The record is -22.8 C (-9.0 F) in 2024, marked on the chart; the median year is -17.2 C (1.0 F). -25-20-15-10-51960198020002020Record: -22.8 C (-9.0 F) in 2024
The coldest night of the year at Jamestown, 1951 to 2026. The record is -22.8 C (-9.0 F) in 2024, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Jamestown by year
YearColdest night (TNn)
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
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003-8.9 C (16.0 F)
2004-17.2 C (1.0 F)
2005-15.6 C (3.9 F)
2006-15.6 C (3.9 F)
2007-15.0 C (5.0 F)
2008-16.1 C (3.0 F)
2009-19.4 C (-2.9 F)
2010-17.2 C (1.0 F)
2011-17.8 C (0.0 F)
2012-12.2 C (10.0 F)
2013-11.7 C (10.9 F)
2014-22.2 C (-8.0 F)
2015-21.7 C (-7.1 F)
2016-17.8 C (0.0 F)
2017-17.2 C (1.0 F)
2018-19.4 C (-2.9 F)
2019-12.8 C (9.0 F)
2020-13.3 C (8.1 F)
2021-12.8 C (9.0 F)
2022-20.6 C (-5.1 F)
2023-11.1 C (12.0 F)
2024-22.8 C (-9.0 F)
2025-20.0 C (-4.0 F)
2026-17.8 C (0.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Jamestown by year The wettest day of the year at Jamestown, 1951 to 2026. The record is 127.5 mm (5.0 in) in 1975, marked on the chart; the median year is 71.1 mm (2.8 in). 2550751001251501960198020002020Record: 127.5 mm (5.0 in) in 1975
The wettest day of the year at Jamestown, 1951 to 2026. The record is 127.5 mm (5.0 in) in 1975, marked on the chart; the median year is 71.1 mm (2.8 in).
Wettest day (Rx1day) at Jamestown by year
YearWettest day (Rx1day)
195172.4 mm (2.9 in)
195251.8 mm (2.0 in)
195355.9 mm (2.2 in)
195459.4 mm (2.3 in)
1955110.5 mm (4.4 in)
195686.4 mm (3.4 in)
195763.5 mm (2.5 in)
195871.1 mm (2.8 in)
195967.8 mm (2.7 in)
196067.1 mm (2.6 in)
196154.6 mm (2.1 in)
1962106.2 mm (4.2 in)
196371.6 mm (2.8 in)
196488.4 mm (3.5 in)
196549.5 mm (1.9 in)
196649.3 mm (1.9 in)
196770.6 mm (2.8 in)
196858.4 mm (2.3 in)
196979.5 mm (3.1 in)
197057.4 mm (2.3 in)
197170.1 mm (2.8 in)
197275.7 mm (3.0 in)
1973118.4 mm (4.7 in)
197483.8 mm (3.3 in)
1975127.5 mm (5.0 in)
197662.2 mm (2.4 in)
197769.3 mm (2.7 in)
197871.6 mm (2.8 in)
197959.4 mm (2.3 in)
198073.7 mm (2.9 in)
198157.2 mm (2.3 in)
198254.9 mm (2.2 in)
198345.0 mm (1.8 in)
1984101.3 mm (4.0 in)
198546.2 mm (1.8 in)
1986101.1 mm (4.0 in)
198773.7 mm (2.9 in)
198875.2 mm (3.0 in)
198956.9 mm (2.2 in)
199077.0 mm (3.0 in)
1991108.2 mm (4.3 in)
199257.4 mm (2.3 in)
199395.3 mm (3.8 in)
199467.1 mm (2.6 in)
199568.3 mm (2.7 in)
199688.4 mm (3.5 in)
199756.1 mm (2.2 in)
199874.7 mm (2.9 in)
199975.9 mm (3.0 in)
200090.2 mm (3.6 in)
200154.1 mm (2.1 in)
200274.2 mm (2.9 in)
200374.7 mm (2.9 in)
2004108.2 mm (4.3 in)
200571.1 mm (2.8 in)
200672.9 mm (2.9 in)
200755.9 mm (2.2 in)
200871.6 mm (2.8 in)
200952.3 mm (2.1 in)
2010122.2 mm (4.8 in)
201198.0 mm (3.9 in)
201280.5 mm (3.2 in)
201356.1 mm (2.2 in)
201470.6 mm (2.8 in)
201568.1 mm (2.7 in)
201653.6 mm (2.1 in)
201794.7 mm (3.7 in)
2018102.1 mm (4.0 in)
201966.0 mm (2.6 in)
202057.2 mm (2.3 in)
202158.4 mm (2.3 in)
202255.9 mm (2.2 in)
202372.4 mm (2.9 in)
2024109.7 mm (4.3 in)
202570.6 mm (2.8 in)
202674.9 mm (2.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Jamestown by year The wettest five days of the year at Jamestown, 1951 to 2026. The record is 203.9 mm (8.0 in) in 1991, marked on the chart; the median year is 122.4 mm (4.8 in). 501001502002501960198020002020Record: 203.9 mm (8.0 in) in 1991
The wettest five days of the year at Jamestown, 1951 to 2026. The record is 203.9 mm (8.0 in) in 1991, marked on the chart; the median year is 122.4 mm (4.8 in).
Wettest five days (Rx5day) at Jamestown by year
YearWettest five days (Rx5day)
195189.2 mm (3.5 in)
195261.3 mm (2.4 in)
1953119.5 mm (4.7 in)
195492.4 mm (3.6 in)
1955141.8 mm (5.6 in)
1956159.5 mm (6.3 in)
1957149.8 mm (5.9 in)
1958127.7 mm (5.0 in)
1959133.6 mm (5.3 in)
196082.8 mm (3.3 in)
196199.1 mm (3.9 in)
1962193.2 mm (7.6 in)
196385.6 mm (3.4 in)
1964126.5 mm (5.0 in)
1965100.4 mm (4.0 in)
196692.8 mm (3.7 in)
1967102.2 mm (4.0 in)
196897.3 mm (3.8 in)
1969141.5 mm (5.6 in)
1970142.3 mm (5.6 in)
1971176.8 mm (7.0 in)
1972139.1 mm (5.5 in)
1973183.5 mm (7.2 in)
1974116.0 mm (4.6 in)
1975200.9 mm (7.9 in)
197688.1 mm (3.5 in)
1977135.0 mm (5.3 in)
197891.1 mm (3.6 in)
197997.3 mm (3.8 in)
1980119.1 mm (4.7 in)
198197.9 mm (3.9 in)
1982142.0 mm (5.6 in)
198382.3 mm (3.2 in)
1984178.3 mm (7.0 in)
1985102.8 mm (4.0 in)
1986157.8 mm (6.2 in)
1987134.3 mm (5.3 in)
1988160.2 mm (6.3 in)
1989102.7 mm (4.0 in)
1990169.0 mm (6.7 in)
1991203.9 mm (8.0 in)
199285.4 mm (3.4 in)
1993122.4 mm (4.8 in)
1994146.9 mm (5.8 in)
1995137.6 mm (5.4 in)
1996100.6 mm (4.0 in)
1997121.4 mm (4.8 in)
1998100.2 mm (3.9 in)
1999179.5 mm (7.1 in)
2000137.0 mm (5.4 in)
2001101.4 mm (4.0 in)
2002155.8 mm (6.1 in)
2003149.9 mm (5.9 in)
2004131.3 mm (5.2 in)
200588.5 mm (3.5 in)
200686.8 mm (3.4 in)
200795.3 mm (3.8 in)
2008117.9 mm (4.6 in)
2009142.0 mm (5.6 in)
2010157.2 mm (6.2 in)
2011178.0 mm (7.0 in)
201290.5 mm (3.6 in)
2013135.4 mm (5.3 in)
2014119.9 mm (4.7 in)
201596.5 mm (3.8 in)
2016118.5 mm (4.7 in)
2017120.9 mm (4.8 in)
2018165.6 mm (6.5 in)
2019142.5 mm (5.6 in)
2020120.5 mm (4.7 in)
2021110.5 mm (4.4 in)
2022135.2 mm (5.3 in)
2023122.4 mm (4.8 in)
2024178.8 mm (7.0 in)
202598.1 mm (3.9 in)
2026146.0 mm (5.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Jamestown by year The longest dry spell of the year at Jamestown, 1951 to 2026. The record is 31 days in 2024, marked on the chart; the median year is 16 days. 0102030401960198020002020Record: 31 days in 2024
The longest dry spell of the year at Jamestown, 1951 to 2026. The record is 31 days in 2024, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Jamestown by year
YearLongest dry spell (CDD)
19517 days
195230 days
195330 days
195421 days
195514 days
195618 days
195714 days
195822 days
195925 days
196013 days
196112 days
196213 days
196327 days
196420 days
196516 days
196615 days
196717 days
196815 days
196912 days
197018 days
197111 days
197210 days
197317 days
197419 days
197511 days
197613 days
197716 days
197815 days
197914 days
198019 days
198114 days
198212 days
198316 days
198423 days
198517 days
198618 days
198720 days
198814 days
198914 days
199017 days
199127 days
199219 days
199317 days
199413 days
199516 days
199611 days
199727 days
199821 days
199927 days
200017 days
200125 days
200217 days
200318 days
200414 days
200515 days
200610 days
200727 days
200822 days
200914 days
201030 days
201114 days
201218 days
201310 days
201420 days
201511 days
201613 days
20179 days
201810 days
201926 days
202011 days
202116 days
202214 days
202312 days
202431 days
202510 days
202616 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

67 years, 1952 to 2025

A day with at least 69.9 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 143.7 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Jamestown: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years69.9 mm (2.8 in)
5 years87.7 mm (3.5 in)
10 years100.2 mm (3.9 in)
25 years116.9 mm (4.6 in)
50 years130.0 mm (5.1 in)
100 years143.7 mm (5.7 in)Longer than the 67 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, 67 years of values from 1952 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: 127.5 mm (5.0 in) in 1975; 122.2 mm (4.8 in) in 2010; 118.4 mm (4.7 in) in 1973.

Download the Data

  • Data for Jamestown standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Jamestown 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).