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Marietta Wtr Wks Weather Records (USC00334929)

Record envelope, standing records and threshold days for Marietta Wtr Wks (USC00334929), Ohio, United States, with 71 years of record.

Key Facts for Marietta Wtr Wks

  • Marietta Wtr Wks (USC00334929) is a weather station in Ohio, United States at 39.43 latitude and -81.47 longitude, 253 m (830 ft) above sea level.
  • The station reports from 1893 to 1963, 71 years of record.
  • 1,464 records set at Marietta Wtr Wks still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Marietta Wtr Wks tied a daily record low minimum temperature of -23.3 C (-9.9 F) on 29 January 1963.

About the Station

  • Location: Ohio, United States, 39.43 latitude, -81.47 longitude.
  • Elevation: 253 m (830 ft).
  • Period of record: 1893 to 1963, 71 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Marietta Wtr Wks, with 2026 drawn through them The band shows the record high and record low for each calendar day at Marietta Wtr Wks. The lines show the 2026 daily maximum and minimum. 0 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 Marietta Wtr Wks. 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 Marietta Wtr Wks, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.3 C (73.9 F)-27.2 C (-17.0 F)n/an/a
Feb25.0 C (77.0 F)-30.0 C (-22.0 F)n/an/a
Mar31.7 C (89.1 F)-21.1 C (-6.0 F)n/an/a
Apr35.6 C (96.1 F)-11.7 C (10.9 F)n/an/a
May37.2 C (99.0 F)-4.4 C (24.1 F)n/an/a
Jun37.2 C (99.0 F)1.1 C (34.0 F)n/an/a
Jul40.6 C (105.1 F)6.7 C (44.1 F)n/an/a
Aug41.1 C (106.0 F)5.6 C (42.1 F)n/an/a
Sep40.0 C (104.0 F)-1.1 C (30.0 F)n/an/a
Oct33.9 C (93.0 F)-8.3 C (17.1 F)n/an/a
Nov30.0 C (86.0 F)-17.2 C (1.0 F)n/an/a
Dec22.2 C (72.0 F)-22.8 C (-9.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Marietta Wtr Wks by the year they were set 1,464 records at Marietta Wtr Wks still stand. 1930 holds the most, with 47. 02040601893: 71894: 241895: 391896: 311897: 231898: 271899: 361900: 261901: 301902: 281903: 311904: 101905: 141906: 211907: 211908: 111909: 151910: 151911: 301912: 111913: 231914: 401915: 161916: 231917: 281918: 301919: 231920: 201921: 141922: 111923: 211924: 131925: 281926: 81927: 281928: 191929: 291930: 471931: 291932: 241933: 261934: 331940: 271941: 251942: 221943: 251944: 101945: 241946: 171947: 271948: 271949: 161951: 141952: 181953: 261954: 211955: 211956: 351957: 171958: 121959: 211960: 211961: 221962: 281963: 51893190019071914192119281940194719551962
1,464 records at Marietta Wtr Wks still stand. 1930 holds the most, with 47.
Standing records at Marietta Wtr Wks by the year they were set
Year setStanding records
18937
189424
189539
189631
189723
189827
189936
190026
190130
190228
190331
190410
190514
190621
190721
190811
190915
191015
191130
191211
191323
191440
191516
191623
191728
191830
191923
192020
192114
192211
192321
192413
192528
19268
192728
192819
192929
193047
193129
193224
193326
193433
194027
194125
194222
194325
194410
194524
194617
194727
194827
194916
195114
195218
195326
195421
195521
195635
195717
195812
195921
196021
196122
196228
19635

All-Time Record Progression

1 new records
When Marietta Wtr Wks set new all-time records 1 all-time records were set at Marietta Wtr Wks between 9 July 1957 and 9 July 1957. Each dot is a new record. Record high minimum temperature9 July 1957: Record high minimum temperature 25.6 C (78.1 F)
1 all-time records were set at Marietta Wtr Wks between 9 July 1957 and 9 July 1957. Each dot is a new record.
When Marietta Wtr Wks set new all-time records
DateKindDetail
1957-07-09Record high minimum temperatureRecord high minimum temperature 25.6 C (78.1 F)

Wettest Day of Each Month

Apr: 93.5 mm (3.7 in)
Record daily precipitation for each month at Marietta Wtr Wks The wettest day on record for each calendar month at Marietta Wtr Wks. The most was 93.5 mm (3.7 in) on 14 April 1922. 0255075100 Jan: 41.7 mm (1.6 in), 6 January 1895 Jan Feb: 48.3 mm (1.9 in), 26 February 1945 Feb Mar: 64.8 mm (2.6 in), 13 March 1918 Mar Apr: 93.5 mm (3.7 in), 14 April 1922 Apr May: 54.6 mm (2.1 in), 11 May 1905 May Jun: 71.1 mm (2.8 in), 4 June 1941 Jun Jul: 79.2 mm (3.1 in), 30 July 1941 Jul Aug: 72.4 mm (2.9 in), 15 August 1909 Aug Sep: 62.2 mm (2.4 in), 20 September 1933 Sep Oct: 71.1 mm (2.8 in), 14 October 1893 Oct Nov: 63.5 mm (2.5 in), 26 November 1919 Nov Dec: 71.1 mm (2.8 in), 15 December 1948 Dec
The wettest day on record for each calendar month at Marietta Wtr Wks. The most was 93.5 mm (3.7 in) on 14 April 1922.
Record daily precipitation for each month at Marietta Wtr Wks
MonthRecord daily precipitation (mm)Date
Jan41.7 mm (1.6 in)6 January 1895
Feb48.3 mm (1.9 in)26 February 1945
Mar64.8 mm (2.6 in)13 March 1918
Apr93.5 mm (3.7 in)14 April 1922
May54.6 mm (2.1 in)11 May 1905
Jun71.1 mm (2.8 in)4 June 1941
Jul79.2 mm (3.1 in)30 July 1941
Aug72.4 mm (2.9 in)15 August 1909
Sep62.2 mm (2.4 in)20 September 1933
Oct71.1 mm (2.8 in)14 October 1893
Nov63.5 mm (2.5 in)26 November 1919
Dec71.1 mm (2.8 in)15 December 1948

Period of Record Coverage

1893 to 1963
Days with data per year at Marietta Wtr Wks 65 years of record at Marietta Wtr Wks, 1893 to 1963. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1896, 1944, 1946, 1947, 1948, 1949 and others. 1893: 214 of 365 days1894: 345 of 365 days1895: 318 of 365 days1896: 295 of 366 days1897: 357 of 365 days1898: 362 of 365 days1899: 355 of 365 days1900: 363 of 365 days1901: 358 of 365 days1902: 347 of 365 days1903: 360 of 365 days1904: 361 of 366 days1905: 359 of 365 days1906: 362 of 365 days1907: 349 of 365 days1908: 357 of 366 days1909: 358 of 365 days1910: 363 of 365 days1911: 359 of 365 days1912: 353 of 366 days1913: 354 of 365 days1914: 358 of 365 days1915: 361 of 365 days1916: 361 of 366 days1917: 364 of 365 days1918: 360 of 365 days1919: 357 of 365 days1920: 352 of 366 days1921: 357 of 365 days1922: 342 of 365 days1923: 358 of 365 days1924: 352 of 366 days1925: 354 of 365 days1926: 357 of 365 days1927: 352 of 365 days1928: 345 of 366 days1929: 331 of 365 days1930: 364 of 365 days1931: 361 of 365 days1932: 363 of 366 days1933: 361 of 365 days1934: 361 of 365 days1940: 360 of 366 days1941: 365 of 365 days1942: 341 of 365 days1943: 361 of 365 days1944: 320 of 366 days1945: 360 of 365 days1946: 213 of 365 days1947: 309 of 365 days1948: 318 of 366 days1949: 272 of 365 days1951: 105 of 365 days1952: 364 of 366 days1953: 364 of 365 days1954: 314 of 365 days1955: 357 of 365 days1956: 360 of 366 days1957: 362 of 365 days1958: 355 of 365 days1959: 361 of 365 days1960: 365 of 366 days1961: 362 of 365 days1962: 362 of 365 days1963: 48 of 365 days190019101920193019401960
65 years of record at Marietta Wtr Wks, 1893 to 1963. 11 years have data for under 90 percent of days and are left out of rankings: 1893, 1895, 1896, 1944, 1946, 1947, 1948, 1949 and others.
Days with data per year at Marietta Wtr Wks
YearDays with dataShare of yearComplete
189321459%No
189434595%Yes
189531887%No
189629581%No
189735798%Yes
189836299%Yes
189935597%Yes
190036399%Yes
190135898%Yes
190234795%Yes
190336099%Yes
190436199%Yes
190535998%Yes
190636299%Yes
190734996%Yes
190835798%Yes
190935898%Yes
191036399%Yes
191135998%Yes
191235396%Yes
191335497%Yes
191435898%Yes
191536199%Yes
191636199%Yes
1917364100%Yes
191836099%Yes
191935798%Yes
192035296%Yes
192135798%Yes
192234294%Yes
192335898%Yes
192435296%Yes
192535497%Yes
192635798%Yes
192735296%Yes
192834594%Yes
192933191%Yes
1930364100%Yes
193136199%Yes
193236399%Yes
193336199%Yes
193436199%Yes
194036098%Yes
1941365100%Yes
194234193%Yes
194336199%Yes
194432087%No
194536099%Yes
194621358%No
194730985%No
194831887%No
194927275%No
195110529%No
195236499%Yes
1953364100%Yes
195431486%No
195535798%Yes
195636098%Yes
195736299%Yes
195835597%Yes
195936199%Yes
1960365100%Yes
196136299%Yes
196236299%Yes
19634813%No

Latest Records

20
Latest records at Marietta Wtr Wks
DateStationRecordValueBeat old record byOld record stoodSignificance
29 January 1963Marietta Wtr Wks, USdaily low min (Tie)-23.3 C (-9.9 F)tie36 years4 of 100 (Routine)
24 January 1963Marietta Wtr Wks, USmonthly low min-27.2 C (-17.0 F)2.2 C (4.0 F)45 years33 of 100 (Routine)
24 January 1963Marietta Wtr Wks, USmonthly low max-12.2 C (10.0 F)0.5 C (0.9 F)23 years23 of 100 (Routine)
11 January 1963Marietta Wtr Wks, USdaily high max17.2 C (63.0 F)2.8 C (5.0 F)52 years26 of 100 (Routine)
11 January 1963Marietta Wtr Wks, USdaily high min6.7 C (44.1 F)1.1 C (2.0 F)29 years16 of 100 (Routine)
10 January 1963Marietta Wtr Wks, USdaily high max16.7 C (62.1 F)2.3 C (4.1 F)32 years19 of 100 (Routine)
31 December 1962Marietta Wtr Wks, USdaily low min (Tie)-15.6 C (3.9 F)tie62 years6 of 100 (Routine)
14 December 1962Marietta Wtr Wks, USdaily low min-17.8 C (0.0 F)0.6 C (1.1 F)63 years27 of 100 (Routine)
13 December 1962Marietta Wtr Wks, USmonthly low max-11.7 C (10.9 F)1.7 C (3.1 F)45 years32 of 100 (Routine)
13 December 1962Marietta Wtr Wks, USdaily low min-20.0 C (-4.0 F)2.2 C (4.0 F)44 years23 of 100 (Routine)
12 December 1962Marietta Wtr Wks, USdaily low min-20.0 C (-4.0 F)3.3 C (5.9 F)44 years25 of 100 (Routine)
12 December 1962Marietta Wtr Wks, USmonthly low max (Tie)-10.0 C (14.0 F)tie45 years7 of 100 (Routine)
11 December 1962Marietta Wtr Wks, USdaily low max (Tie)-7.8 C (18.0 F)tie44 years5 of 100 (Routine)
2 December 1962Marietta Wtr Wks, USdaily high max18.9 C (66.0 F)2.2 C (4.0 F)49 years24 of 100 (Routine)
10 November 1962Marietta Wtr Wks, USdaily rain34.5 mm (1.4 in)4.5 mm (0.18 in)63 years31 of 100 (Routine)
27 October 1962Marietta Wtr Wks, USdaily low min-6.7 C (19.9 F)2.8 C (5.0 F)12 years15 of 100 (Routine)
26 October 1962Marietta Wtr Wks, USdaily low max3.9 C (39.0 F)2.8 C (5.0 F)63 years31 of 100 (Routine)
26 October 1962Marietta Wtr Wks, USdaily low min (Tie)-6.1 C (21.0 F)tie32 years4 of 100 (Routine)
25 October 1962Marietta Wtr Wks, USdaily low max6.1 C (43.0 F)1.7 C (3.1 F)44 years23 of 100 (Routine)
15 October 1962Marietta Wtr Wks, USdaily high max (Tie)30.0 C (86.0 F)tie5 years2 of 100 (Routine)

Climate Trend

52 complete years, 1894 to 1962
Annual mean temperature at Marietta Wtr Wks as warming stripes, 1894 to 1962 One stripe for each of 52 complete years at Marietta Wtr Wks, 1894 to 1962. Blue stripes are years cooler than the station's own mean of 12.5 C (54.4 F); red stripes are warmer. The coolest year was 1917, at 10.5 C (50.9 F), and the warmest was 1921, at 14.3 C (57.7 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1894: 12.8 C, +0.4 C from the station mean1897: 12.4 C, -0.1 C from the station mean1898: 12.8 C, +0.3 C from the station mean1899: 12.6 C, +0.1 C from the station mean1900: 13.2 C, +0.7 C from the station mean1901: 11.8 C, -0.6 C from the station mean1902: 12.3 C, -0.2 C from the station mean1903: 12.2 C, -0.3 C from the station mean1904: 11.3 C, -1.2 C from the station mean1905: 11.6 C, -0.9 C from the station mean1906: 12.9 C, +0.5 C from the station mean1907: 12.1 C, -0.4 C from the station mean1908: 13.1 C, +0.7 C from the station mean1909: 12.9 C, +0.4 C from the station mean1910: 12.2 C, -0.2 C from the station mean1911: 13.5 C, +1.0 C from the station mean1912: 12.0 C, -0.5 C from the station mean1913: 13.0 C, +0.6 C from the station mean1914: 12.0 C, -0.5 C from the station mean1915: 12.0 C, -0.4 C from the station mean1916: 12.0 C, -0.4 C from the station mean1917: 10.5 C, -1.9 C from the station mean1918: 12.3 C, -0.2 C from the station mean1919: 12.6 C, +0.1 C from the station mean1920: 11.2 C, -1.3 C from the station mean1921: 14.3 C, +1.8 C from the station mean1922: 13.3 C, +0.8 C from the station mean1923: 12.5 C, 0.0 C from the station mean1924: 11.7 C, -0.7 C from the station mean1925: 12.7 C, +0.2 C from the station mean1926: 11.6 C, -0.8 C from the station mean1927: 12.8 C, +0.3 C from the station mean1928: 12.2 C, -0.2 C from the station mean1930: 12.7 C, +0.2 C from the station mean1931: 13.7 C, +1.2 C from the station mean1932: 13.1 C, +0.6 C from the station mean1933: 13.4 C, +0.9 C from the station mean1934: 12.7 C, +0.3 C from the station mean1940: 11.8 C, -0.6 C from the station mean1941: 13.2 C, +0.8 C from the station mean1942: 12.8 C, +0.3 C from the station mean1943: 12.0 C, -0.5 C from the station mean1945: 11.9 C, -0.6 C from the station mean1952: 13.4 C, +0.9 C from the station mean1955: 13.1 C, +0.6 C from the station mean1956: 12.7 C, +0.2 C from the station mean1957: 12.7 C, +0.2 C from the station mean1958: 11.6 C, -0.9 C from the station mean1959: 13.1 C, +0.6 C from the station mean1960: 11.6 C, -0.8 C from the station mean1961: 12.2 C, -0.3 C from the station mean1962: 11.9 C, -0.6 C from the station mean18941900191019201930194019501960
One stripe for each of 52 complete years at Marietta Wtr Wks, 1894 to 1962. Blue stripes are years cooler than the station's own mean of 12.5 C (54.4 F); red stripes are warmer. The coolest year was 1917, at 10.5 C (50.9 F), and the warmest was 1921, at 14.3 C (57.7 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Marietta Wtr Wks as warming stripes, 1894 to 1962
YearAnnual mean temperatureDifference from the station mean
189412.8 C+0.39 C
189712.4 C-0.05 C
189812.8 C+0.30 C
189912.6 C+0.15 C
190013.2 C+0.74 C
190111.8 C-0.64 C
190212.3 C-0.16 C
190312.2 C-0.27 C
190411.3 C-1.19 C
190511.6 C-0.90 C
190612.9 C+0.46 C
190712.1 C-0.39 C
190813.1 C+0.69 C
190912.9 C+0.41 C
191012.2 C-0.21 C
191113.5 C+1.05 C
191212.0 C-0.48 C
191313.0 C+0.57 C
191412.0 C-0.47 C
191512.0 C-0.44 C
191612.0 C-0.42 C
191710.5 C-1.93 C
191812.3 C-0.15 C
191912.6 C+0.15 C
192011.2 C-1.26 C
192114.3 C+1.80 C
192213.3 C+0.80 C
192312.5 C+0.03 C
192411.7 C-0.74 C
192512.7 C+0.22 C
192611.6 C-0.82 C
192712.8 C+0.32 C
192812.2 C-0.21 C
193012.7 C+0.20 C
193113.7 C+1.25 C
193213.1 C+0.60 C
193313.4 C+0.91 C
193412.7 C+0.27 C
194011.8 C-0.64 C
194113.2 C+0.78 C
194212.8 C+0.31 C
194312.0 C-0.48 C
194511.9 C-0.59 C
195213.4 C+0.93 C
195513.1 C+0.64 C
195612.7 C+0.20 C
195712.7 C+0.22 C
195811.6 C-0.88 C
195913.1 C+0.65 C
196011.6 C-0.84 C
196112.2 C-0.26 C
196211.9 C-0.57 C

The fitted trend in annual mean temperature here over 1894 to 1962 is 0.01 C (-0.09 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.02 F (-0.16 to 0.20) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Marietta Wtr Wks
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.01 C (-0.09 to 0.11) per decade0.02 F (-0.16 to 0.20) per decade1894 to 196252Not clearly different from zero
Mean daily maximum0.16 C (0.03 to 0.28) per decade0.3 F (0.1 to 0.5) per decade1894 to 196252Rise
Mean daily minimum-0.14 C (-0.25 to -0.02) per decade-0.25 F (-0.46 to -0.03) per decade1894 to 196252Fall

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

1893 to 1963
Yearly extremes at Marietta Wtr Wks: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)191835.6 C (96.1 F)65
Coldest night (TNn)-30.0 C (-22.0 F)1899-19.4 C (-2.9 F)65
Wettest day (Rx1day)93.5 mm (3.7 in)192250.8 mm (2.0 in)65
Wettest five days (Rx5day)182.5 mm (7.2 in)194177.6 mm (3.1 in)65
Longest dry spell (CDD)32 days190116 days65

Hottest day (TXx)

Hottest day (TXx) at Marietta Wtr Wks by year The hottest day of the year at Marietta Wtr Wks, 1893 to 1963. The record is 41.1 C (106.0 F) in 1918, marked on the chart; the median year is 35.6 C (96.1 F). 10203040501900192019401960Record: 41.1 C (106.0 F) in 1918
The hottest day of the year at Marietta Wtr Wks, 1893 to 1963. The record is 41.1 C (106.0 F) in 1918, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Marietta Wtr Wks by year
YearHottest day (TXx)
189334.4 C (93.9 F)
189436.7 C (98.1 F)
189536.7 C (98.1 F)
189635.6 C (96.1 F)
189735.0 C (95.0 F)
189834.4 C (93.9 F)
189933.3 C (91.9 F)
190034.4 C (93.9 F)
190136.7 C (98.1 F)
190233.9 C (93.0 F)
190333.9 C (93.0 F)
190432.8 C (91.0 F)
190532.2 C (90.0 F)
190632.8 C (91.0 F)
190732.8 C (91.0 F)
190835.6 C (96.1 F)
190935.0 C (95.0 F)
191036.1 C (97.0 F)
191140.0 C (104.0 F)
191235.0 C (95.0 F)
191337.2 C (99.0 F)
191438.9 C (102.0 F)
191535.6 C (96.1 F)
191637.2 C (99.0 F)
191736.1 C (97.0 F)
191841.1 C (106.0 F)
191938.3 C (100.9 F)
192034.4 C (93.9 F)
192136.7 C (98.1 F)
192235.6 C (96.1 F)
192336.7 C (98.1 F)
192436.1 C (97.0 F)
192537.2 C (99.0 F)
192636.1 C (97.0 F)
192735.6 C (96.1 F)
192833.9 C (93.0 F)
192935.0 C (95.0 F)
193040.6 C (105.1 F)
193138.3 C (100.9 F)
193237.8 C (100.0 F)
193337.2 C (99.0 F)
193440.6 C (105.1 F)
194037.2 C (99.0 F)
194137.8 C (100.0 F)
194235.6 C (96.1 F)
194334.4 C (93.9 F)
194436.7 C (98.1 F)
194533.9 C (93.0 F)
194634.4 C (93.9 F)
194733.3 C (91.9 F)
194833.9 C (93.0 F)
194936.1 C (97.0 F)
195132.8 C (91.0 F)
195236.1 C (97.0 F)
195340.0 C (104.0 F)
195437.8 C (100.0 F)
195537.8 C (100.0 F)
195635.0 C (95.0 F)
195736.7 C (98.1 F)
195832.2 C (90.0 F)
195937.2 C (99.0 F)
196033.9 C (93.0 F)
196133.9 C (93.0 F)
196236.7 C (98.1 F)
196317.2 C (63.0 F)

Coldest night (TNn)

Coldest night (TNn) at Marietta Wtr Wks by year The coldest night of the year at Marietta Wtr Wks, 1893 to 1963. The record is -30.0 C (-22.0 F) in 1899, marked on the chart; the median year is -19.4 C (-2.9 F). -30-20-1001900192019401960Record: -30.0 C (-22.0 F) in 1899
The coldest night of the year at Marietta Wtr Wks, 1893 to 1963. The record is -30.0 C (-22.0 F) in 1899, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Marietta Wtr Wks by year
YearColdest night (TNn)
1893-7.8 C (18.0 F)
1894-20.0 C (-4.0 F)
1895-20.6 C (-5.1 F)
1896-18.9 C (-2.0 F)
1897-22.2 C (-8.0 F)
1898-17.8 C (0.0 F)
1899-30.0 C (-22.0 F)
1900-17.8 C (0.0 F)
1901-19.4 C (-2.9 F)
1902-15.6 C (3.9 F)
1903-17.2 C (1.0 F)
1904-23.3 C (-9.9 F)
1905-21.1 C (-6.0 F)
1906-17.8 C (0.0 F)
1907-20.6 C (-5.1 F)
1908-12.8 C (9.0 F)
1909-16.7 C (1.9 F)
1910-20.0 C (-4.0 F)
1911-17.2 C (1.0 F)
1912-23.3 C (-9.9 F)
1913-15.6 C (3.9 F)
1914-23.9 C (-11.0 F)
1915-18.3 C (-0.9 F)
1916-23.3 C (-9.9 F)
1917-22.8 C (-9.0 F)
1918-25.0 C (-13.0 F)
1919-20.6 C (-5.1 F)
1920-18.9 C (-2.0 F)
1921-12.2 C (10.0 F)
1922-14.4 C (6.1 F)
1923-18.3 C (-0.9 F)
1924-18.9 C (-2.0 F)
1925-21.1 C (-6.0 F)
1926-23.3 C (-9.9 F)
1927-17.8 C (0.0 F)
1928-13.9 C (7.0 F)
1929-21.7 C (-7.1 F)
1930-20.6 C (-5.1 F)
1931-10.6 C (12.9 F)
1932-22.8 C (-9.0 F)
1933-19.4 C (-2.9 F)
1934-25.6 C (-14.1 F)
1940-24.4 C (-11.9 F)
1941-12.8 C (9.0 F)
1942-22.2 C (-8.0 F)
1943-21.1 C (-6.0 F)
1944-17.2 C (1.0 F)
1945-17.2 C (1.0 F)
1946-12.2 C (10.0 F)
1947-20.0 C (-4.0 F)
1948-24.4 C (-11.9 F)
1949-15.0 C (5.0 F)
1951-20.6 C (-5.1 F)
1952-12.8 C (9.0 F)
1953-13.3 C (8.1 F)
1954-15.6 C (3.9 F)
1955-18.9 C (-2.0 F)
1956-13.3 C (8.1 F)
1957-21.7 C (-7.1 F)
1958-23.3 C (-9.9 F)
1959-20.6 C (-5.1 F)
1960-17.8 C (0.0 F)
1961-20.0 C (-4.0 F)
1962-22.2 C (-8.0 F)
1963-27.2 C (-17.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Marietta Wtr Wks by year The wettest day of the year at Marietta Wtr Wks, 1893 to 1963. The record is 93.5 mm (3.7 in) in 1922, marked on the chart; the median year is 50.8 mm (2.0 in). 0204060801001900192019401960Record: 93.5 mm (3.7 in) in 1922
The wettest day of the year at Marietta Wtr Wks, 1893 to 1963. The record is 93.5 mm (3.7 in) in 1922, marked on the chart; the median year is 50.8 mm (2.0 in).
Wettest day (Rx1day) at Marietta Wtr Wks by year
YearWettest day (Rx1day)
189371.1 mm (2.8 in)
189454.1 mm (2.1 in)
189541.7 mm (1.6 in)
189666.0 mm (2.6 in)
189745.2 mm (1.8 in)
189843.7 mm (1.7 in)
189962.5 mm (2.5 in)
190050.8 mm (2.0 in)
190158.4 mm (2.3 in)
190255.9 mm (2.2 in)
190336.8 mm (1.4 in)
190432.0 mm (1.3 in)
190557.9 mm (2.3 in)
190649.5 mm (1.9 in)
190773.7 mm (2.9 in)
190834.0 mm (1.3 in)
190972.4 mm (2.9 in)
191033.3 mm (1.3 in)
191153.8 mm (2.1 in)
191234.8 mm (1.4 in)
191358.7 mm (2.3 in)
191436.8 mm (1.4 in)
191552.6 mm (2.1 in)
191636.1 mm (1.4 in)
191753.8 mm (2.1 in)
191864.8 mm (2.6 in)
191964.8 mm (2.6 in)
192048.3 mm (1.9 in)
192161.2 mm (2.4 in)
192293.5 mm (3.7 in)
192348.3 mm (1.9 in)
192457.4 mm (2.3 in)
192553.8 mm (2.1 in)
192644.5 mm (1.8 in)
192763.5 mm (2.5 in)
192858.4 mm (2.3 in)
192939.6 mm (1.6 in)
193030.7 mm (1.2 in)
193137.8 mm (1.5 in)
193262.7 mm (2.5 in)
193362.2 mm (2.4 in)
193464.8 mm (2.6 in)
194050.8 mm (2.0 in)
194179.2 mm (3.1 in)
194248.8 mm (1.9 in)
194343.9 mm (1.7 in)
194442.9 mm (1.7 in)
194556.1 mm (2.2 in)
194643.2 mm (1.7 in)
194761.7 mm (2.4 in)
194871.1 mm (2.8 in)
194939.4 mm (1.6 in)
195125.4 mm (1.0 in)
195261.5 mm (2.4 in)
195349.0 mm (1.9 in)
195462.0 mm (2.4 in)
195555.9 mm (2.2 in)
195639.4 mm (1.6 in)
195743.9 mm (1.7 in)
195834.0 mm (1.3 in)
195938.1 mm (1.5 in)
196048.8 mm (1.9 in)
196135.6 mm (1.4 in)
196256.4 mm (2.2 in)
196314.7 mm (0.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Marietta Wtr Wks by year The wettest five days of the year at Marietta Wtr Wks, 1893 to 1963. The record is 182.5 mm (7.2 in) in 1941, marked on the chart; the median year is 77.6 mm (3.1 in). 0501001502001900192019401960Record: 182.5 mm (7.2 in) in 1941
The wettest five days of the year at Marietta Wtr Wks, 1893 to 1963. The record is 182.5 mm (7.2 in) in 1941, marked on the chart; the median year is 77.6 mm (3.1 in).
Wettest five days (Rx5day) at Marietta Wtr Wks by year
YearWettest five days (Rx5day)
189311.7 mm (0.5 in)
189462.0 mm (2.4 in)
189511.7 mm (0.5 in)
1896113.3 mm (4.5 in)
189737.4 mm (1.5 in)
189896.1 mm (3.8 in)
189982.0 mm (3.2 in)
190077.6 mm (3.1 in)
1901132.6 mm (5.2 in)
190265.8 mm (2.6 in)
190369.3 mm (2.7 in)
190450.8 mm (2.0 in)
1905100.1 mm (3.9 in)
190675.3 mm (3.0 in)
1907120.4 mm (4.7 in)
190863.6 mm (2.5 in)
190979.3 mm (3.1 in)
191053.4 mm (2.1 in)
191185.0 mm (3.3 in)
191260.5 mm (2.4 in)
1913115.4 mm (4.5 in)
191457.9 mm (2.3 in)
191574.5 mm (2.9 in)
191670.9 mm (2.8 in)
191780.3 mm (3.2 in)
191889.4 mm (3.5 in)
1919109.7 mm (4.3 in)
192068.9 mm (2.7 in)
192199.9 mm (3.9 in)
192291.2 mm (3.6 in)
192375.3 mm (3.0 in)
192480.3 mm (3.2 in)
192583.8 mm (3.3 in)
1926111.0 mm (4.4 in)
192769.1 mm (2.7 in)
192882.8 mm (3.3 in)
192956.9 mm (2.2 in)
193039.2 mm (1.5 in)
193171.3 mm (2.8 in)
193263.6 mm (2.5 in)
193375.0 mm (3.0 in)
193473.9 mm (2.9 in)
1940115.9 mm (4.6 in)
1941182.5 mm (7.2 in)
194281.3 mm (3.2 in)
194379.2 mm (3.1 in)
194455.9 mm (2.2 in)
194596.1 mm (3.8 in)
194642.5 mm (1.7 in)
194754.4 mm (2.1 in)
1948121.6 mm (4.8 in)
194977.7 mm (3.1 in)
195154.1 mm (2.1 in)
195299.6 mm (3.9 in)
195394.7 mm (3.7 in)
195482.9 mm (3.3 in)
1955111.8 mm (4.4 in)
195672.4 mm (2.9 in)
195757.2 mm (2.3 in)
1958109.0 mm (4.3 in)
195953.6 mm (2.1 in)
196057.3 mm (2.3 in)
196179.8 mm (3.1 in)
196284.3 mm (3.3 in)
196326.4 mm (1.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Marietta Wtr Wks by year The longest dry spell of the year at Marietta Wtr Wks, 1893 to 1963. The record is 32 days in 1901, marked on the chart; the median year is 16 days. 0102030401900192019401960Record: 32 days in 1901
The longest dry spell of the year at Marietta Wtr Wks, 1893 to 1963. The record is 32 days in 1901, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Marietta Wtr Wks by year
YearLongest dry spell (CDD)
189310 days
189411 days
18952 days
189618 days
189727 days
189814 days
189916 days
190018 days
190132 days
190216 days
190318 days
190424 days
190512 days
190616 days
190718 days
190820 days
190916 days
191018 days
191118 days
191211 days
191315 days
191419 days
191519 days
191623 days
191720 days
191813 days
191913 days
192024 days
192113 days
192225 days
192314 days
192430 days
192515 days
192611 days
192718 days
192811 days
192915 days
193019 days
193111 days
193215 days
193315 days
193424 days
194014 days
194124 days
194217 days
194318 days
194412 days
194516 days
194615 days
194717 days
194816 days
194915 days
195115 days
195223 days
195324 days
195415 days
195530 days
195614 days
195719 days
195814 days
195927 days
196019 days
196113 days
196214 days
196310 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

52 years with a frost

Across 52 years with a frost, the median last spring frost at Marietta Wtr Wks falls on 22 April and the median first autumn frost on 17 October, which leaves a median of 181 days between them.

Fitted over all years, the growing season changes by -2.3 days per decade at this station.

Frost dates and growing season at Marietta Wtr Wks
MeasureMedian, all yearsEarliest periodRecent period (1918 to 1962)Recent against earliestFitted trend
Last spring frost22 Apriln/a25 Apriln/a+0.8 days per decade
First autumn frost17 Octobern/a15 Octobern/a-1.5 days per decade
Growing days181 daysn/a175 daysn/a-2.3 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

38 years, 1899 to 1962

A day with at least 49.4 mm (1.9 in) of rain is expected about once in 2 years. A day with at least 79.0 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Marietta Wtr Wks: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.4 mm (1.9 in)
5 years60.4 mm (2.4 in)
10 years66.2 mm (2.6 in)
25 years72.2 mm (2.8 in)
50 years75.9 mm (3.0 in)Longer than the 38 years of record
100 years79.0 mm (3.1 in)Longer than the 38 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, 38 years of values from 1899 to 1962.

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: 79.2 mm (3.1 in) in 1941; 71.1 mm (2.8 in) in 1948; 64.8 mm (2.6 in) in 1934.

Station Changes

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

Download the Data

  • Data for Marietta Wtr Wks standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Marietta Wtr Wks 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).