Built 2026-10-16 (16 October 2026)

Stewart Weather Records (USC00218025)

Record envelope, standing records and threshold days for Stewart (USC00218025), Minnesota, United States, with 47 years of record.

Key Facts for Stewart

  • Stewart (USC00218025) is a weather station in Minnesota, United States at 44.73 latitude and -94.34 longitude, 317 m (1,040 ft) above sea level.
  • The station reports from 1957 to 2003, 47 years of record.
  • 1,464 records set at Stewart still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Stewart tied a daily record high maximum temperature of 33.9 C (93.0 F) on 27 August 2003.

About the Station

  • Location: Minnesota, United States, 44.73 latitude, -94.34 longitude.
  • Elevation: 317 m (1,040 ft).
  • Period of record: 1957 to 2003, 47 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Stewart, with 2026 drawn through them The band shows the record high and record low for each calendar day at Stewart. 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 Stewart. 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 Stewart, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.7 C (62.1 F)-37.2 C (-35.0 F)n/an/a
Feb16.1 C (61.0 F)-36.7 C (-34.1 F)n/an/a
Mar28.9 C (84.0 F)-35.0 C (-31.0 F)n/an/a
Apr33.9 C (93.0 F)-15.6 C (3.9 F)n/an/a
May35.6 C (96.1 F)-6.7 C (19.9 F)n/an/a
Jun40.0 C (104.0 F)2.2 C (36.0 F)n/an/a
Jul38.9 C (102.0 F)4.4 C (39.9 F)n/an/a
Aug41.1 C (106.0 F)2.8 C (37.0 F)n/an/a
Sep37.2 C (99.0 F)-6.1 C (21.0 F)n/an/a
Oct32.2 C (90.0 F)-10.6 C (12.9 F)n/an/a
Nov23.9 C (75.0 F)-26.1 C (-15.0 F)n/an/a
Dec18.9 C (66.0 F)-34.4 C (-29.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Stewart by the year they were set 1,464 records at Stewart still stand. 1976 holds the most, with 51. 02040601957: 191958: 461959: 481960: 351961: 261962: 451963: 391964: 301965: 271966: 391967: 371968: 491969: 281970: 341971: 261972: 381973: 281974: 371975: 281976: 511977: 391978: 291979: 271980: 171981: 371982: 141983: 341984: 221985: 311986: 231987: 391988: 501989: 431990: 341991: 271993: 231994: 221995: 381996: 271997: 261998: 241999: 122000: 302001: 372002: 352003: 141957196219671972197719821987199319982003
1,464 records at Stewart still stand. 1976 holds the most, with 51.
Standing records at Stewart by the year they were set
Year setStanding records
195719
195846
195948
196035
196126
196245
196339
196430
196527
196639
196737
196849
196928
197034
197126
197238
197328
197437
197528
197651
197739
197829
197927
198017
198137
198214
198334
198422
198531
198623
198739
198850
198943
199034
199127
199323
199422
199538
199627
199726
199824
199912
200030
200137
200235
200314

All-Time Record Progression

5 new records
When Stewart set new all-time records 5 all-time records were set at Stewart between 20 June 1988 and 15 December 1996. Each dot is a new record. Record high maximum temperatureRecord daily precipitationRecord high minimum temperatureRecord daily snowfall20 June 1988: Record high maximum temperature 40.0 C (104.0 F)1 August 1988: Record high maximum temperature 41.1 C (106.0 F)26 August 1994: Record daily precipitation 170.7 mm (6.7 in)29 June 1996: Record high minimum temperature 27.2 C (81.0 F)15 December 1996: Record daily snowfall 33.0 cm (13.0 in)19901995
5 all-time records were set at Stewart between 20 June 1988 and 15 December 1996. Each dot is a new record.
When Stewart set new all-time records
DateKindDetail
1988-06-20Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
1988-08-01Record high maximum temperatureRecord high maximum temperature 41.1 C (106.0 F)
1994-08-26Record daily precipitationRecord daily precipitation 170.7 mm (6.7 in)
1996-06-29Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
1996-12-15Record daily snowfallRecord daily snowfall 33.0 cm (13.0 in)

Wettest Day of Each Month

Aug: 170.7 mm (6.7 in)
Record daily precipitation for each month at Stewart The wettest day on record for each calendar month at Stewart. The most was 170.7 mm (6.7 in) on 26 August 1994. 050100150200 Jan: 29.2 mm (1.1 in), 30 January 2001 Jan Feb: 26.4 mm (1.0 in), 27 February 1971 Feb Mar: 39.4 mm (1.6 in), 23 March 1991 Mar Apr: 63.8 mm (2.5 in), 23 April 2001 Apr May: 46.2 mm (1.8 in), 30 May 2002 May Jun: 117.9 mm (4.6 in), 29 June 1997 Jun Jul: 102.4 mm (4.0 in), 25 July 1997 Jul Aug: 170.7 mm (6.7 in), 26 August 1994 Aug Sep: 78.7 mm (3.1 in), 10 September 1982 Sep Oct: 58.4 mm (2.3 in), 8 October 1970 Oct Nov: 59.9 mm (2.4 in), 20 November 1973 Nov Dec: 30.5 mm (1.2 in), 16 December 1984 Dec
The wettest day on record for each calendar month at Stewart. The most was 170.7 mm (6.7 in) on 26 August 1994.
Record daily precipitation for each month at Stewart
MonthRecord daily precipitation (mm)Date
Jan29.2 mm (1.1 in)30 January 2001
Feb26.4 mm (1.0 in)27 February 1971
Mar39.4 mm (1.6 in)23 March 1991
Apr63.8 mm (2.5 in)23 April 2001
May46.2 mm (1.8 in)30 May 2002
Jun117.9 mm (4.6 in)29 June 1997
Jul102.4 mm (4.0 in)25 July 1997
Aug170.7 mm (6.7 in)26 August 1994
Sep78.7 mm (3.1 in)10 September 1982
Oct58.4 mm (2.3 in)8 October 1970
Nov59.9 mm (2.4 in)20 November 1973
Dec30.5 mm (1.2 in)16 December 1984

Period of Record Coverage

1957 to 2003
Days with data per year at Stewart 47 years of record at Stewart, 1957 to 2003. 7 years have data for under 90 percent of days and are left out of rankings: 1957, 1964, 1965, 1991, 1992, 1999, 2003. 1957: 234 of 365 days1958: 362 of 365 days1959: 351 of 365 days1960: 362 of 366 days1961: 359 of 365 days1962: 358 of 365 days1963: 365 of 365 days1964: 242 of 366 days1965: 199 of 365 days1966: 350 of 365 days1967: 362 of 365 days1968: 363 of 366 days1969: 357 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 363 of 366 days1973: 364 of 365 days1974: 363 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 363 of 365 days1978: 363 of 365 days1979: 363 of 365 days1980: 364 of 366 days1981: 362 of 365 days1982: 346 of 365 days1983: 355 of 365 days1984: 356 of 366 days1985: 351 of 365 days1986: 351 of 365 days1987: 360 of 365 days1988: 360 of 366 days1989: 358 of 365 days1990: 362 of 365 days1991: 258 of 365 days1992: 27 of 366 days1993: 362 of 365 days1994: 361 of 365 days1995: 364 of 365 days1996: 361 of 366 days1997: 331 of 365 days1998: 357 of 365 days1999: 315 of 365 days2000: 332 of 366 days2001: 329 of 365 days2002: 364 of 365 days2003: 238 of 365 days19601970198019902000
47 years of record at Stewart, 1957 to 2003. 7 years have data for under 90 percent of days and are left out of rankings: 1957, 1964, 1965, 1991, 1992, 1999, 2003.
Days with data per year at Stewart
YearDays with dataShare of yearComplete
195723464%No
195836299%Yes
195935196%Yes
196036299%Yes
196135998%Yes
196235898%Yes
1963365100%Yes
196424266%No
196519955%No
196635096%Yes
196736299%Yes
196836399%Yes
196935798%Yes
1970364100%Yes
1971365100%Yes
197236399%Yes
1973364100%Yes
197436399%Yes
1975364100%Yes
1976366100%Yes
197736399%Yes
197836399%Yes
197936399%Yes
198036499%Yes
198136299%Yes
198234695%Yes
198335597%Yes
198435697%Yes
198535196%Yes
198635196%Yes
198736099%Yes
198836098%Yes
198935898%Yes
199036299%Yes
199125871%No
1992277%No
199336299%Yes
199436199%Yes
1995364100%Yes
199636199%Yes
199733191%Yes
199835798%Yes
199931586%No
200033291%Yes
200132990%Yes
2002364100%Yes
200323865%No

Latest Records

20
Latest records at Stewart
DateStationRecordValueBeat old record byOld record stoodSignificance
27 August 2003Stewart, USdaily high max (Tie)33.9 C (93.0 F)tie29 years3 of 100 (Routine)
25 August 2003Stewart, USdaily high max35.6 C (96.1 F)2.3 C (4.1 F)32 years19 of 100 (Routine)
19 August 2003Stewart, USdaily high max (Tie)35.0 C (95.0 F)tie26 years3 of 100 (Routine)
18 August 2003Stewart, USdaily high min (Tie)22.2 C (72.0 F)tie26 years3 of 100 (Routine)
24 July 2003Stewart, USdaily low min11.1 C (52.0 F)0.6 C (1.1 F)33 years15 of 100 (Routine)
27 June 2003Stewart, USdaily low max21.7 C (71.1 F)0.5 C (0.9 F)34 years15 of 100 (Routine)
7 June 2003Stewart, USdaily low max17.8 C (64.0 F)0.5 C (0.9 F)4 years6 of 100 (Routine)
9 May 2003Stewart, USdaily rain20.6 mm (0.8 in)0.3 mm (0.01 in)14 years8 of 100 (Routine)
17 April 2003Stewart, USdaily rain19.1 mm (0.8 in)5.9 mm (0.23 in)41 years20 of 100 (Routine)
15 April 2003Stewart, USdaily high max32.2 C (90.0 F)3.3 C (5.9 F)26 years16 of 100 (Routine)
14 April 2003Stewart, USdaily high max27.8 C (82.0 F)1.1 C (2.0 F)26 years13 of 100 (Routine)
16 March 2003Stewart, USdaily high max18.9 C (66.0 F)1.1 C (2.0 F)8 years7 of 100 (Routine)
10 March 2003Stewart, USdaily low max-12.2 C (10.0 F)0.5 C (0.9 F)24 years11 of 100 (Routine)
9 March 2003Stewart, USdaily low max-10.0 C (14.0 F)1.1 C (2.0 F)18 years10 of 100 (Routine)
8 March 2003Stewart, USdaily snowfall17.8 cm (7.0 in)7.6 cm (3.0 in)20 years23 of 100 (Routine)
25 February 2003Stewart, USdaily low max-14.4 C (6.1 F)3.3 C (5.9 F)9 years10 of 100 (Routine)
6 February 2003Stewart, USdaily snowfall3.8 cm (1.5 in)2.5 cm (1.0 in)24 years16 of 100 (Routine)
6 February 2003Stewart, USdaily rain2.0 mm (0.08 in)1.2 mm (0.05 in)24 years13 of 100 (Routine)
3 February 2003Stewart, USdaily rain14.0 mm (0.6 in)8.9 mm (0.35 in)20 years20 of 100 (Routine)
3 February 2003Stewart, USdaily snowfall15.2 cm (6.0 in)7.6 cm (3.0 in)20 years27 of 100 (Routine)

Climate Trend

36 complete years, 1958 to 2002
Annual mean temperature at Stewart as warming stripes, 1958 to 2002 One stripe for each of 36 complete years at Stewart, 1958 to 2002. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1996, at 5.2 C (41.4 F), and the warmest was 1987, at 9.4 C (48.9 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1958: 6.8 C, -0.2 C from the station mean1959: 6.9 C, -0.1 C from the station mean1960: 6.3 C, -0.7 C from the station mean1961: 7.0 C, 0.0 C from the station mean1962: 6.7 C, -0.3 C from the station mean1963: 7.5 C, +0.5 C from the station mean1966: 6.4 C, -0.6 C from the station mean1967: 6.6 C, -0.4 C from the station mean1968: 7.7 C, +0.7 C from the station mean1969: 6.3 C, -0.7 C from the station mean1970: 6.3 C, -0.7 C from the station mean1971: 6.7 C, -0.3 C from the station mean1972: 5.8 C, -1.2 C from the station mean1973: 8.4 C, +1.4 C from the station mean1974: 7.3 C, +0.3 C from the station mean1975: 6.9 C, -0.1 C from the station mean1976: 7.8 C, +0.8 C from the station mean1977: 7.8 C, +0.8 C from the station mean1978: 6.5 C, -0.5 C from the station mean1979: 5.6 C, -1.4 C from the station mean1980: 7.8 C, +0.8 C from the station mean1981: 8.2 C, +1.2 C from the station mean1983: 6.8 C, -0.2 C from the station mean1984: 6.9 C, -0.1 C from the station mean1985: 5.6 C, -1.4 C from the station mean1986: 7.2 C, +0.2 C from the station mean1987: 9.4 C, +2.4 C from the station mean1988: 7.4 C, +0.4 C from the station mean1989: 6.1 C, -0.9 C from the station mean1990: 7.8 C, +0.8 C from the station mean1993: 5.6 C, -1.4 C from the station mean1994: 6.9 C, -0.1 C from the station mean1995: 7.0 C, 0.0 C from the station mean1996: 5.2 C, -1.8 C from the station mean1998: 9.2 C, +2.2 C from the station mean2002: 7.4 C, +0.4 C from the station mean195819651970197519801985199019952000
One stripe for each of 36 complete years at Stewart, 1958 to 2002. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 1996, at 5.2 C (41.4 F), and the warmest was 1987, at 9.4 C (48.9 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Stewart as warming stripes, 1958 to 2002
YearAnnual mean temperatureDifference from the station mean
19586.8 C-0.25 C
19596.9 C-0.09 C
19606.3 C-0.72 C
19617.0 C-0.02 C
19626.7 C-0.28 C
19637.5 C+0.47 C
19666.4 C-0.62 C
19676.6 C-0.36 C
19687.7 C+0.71 C
19696.3 C-0.67 C
19706.3 C-0.72 C
19716.7 C-0.28 C
19725.8 C-1.20 C
19738.4 C+1.43 C
19747.3 C+0.33 C
19756.9 C-0.11 C
19767.8 C+0.80 C
19777.8 C+0.76 C
19786.5 C-0.46 C
19795.6 C-1.40 C
19807.8 C+0.75 C
19818.2 C+1.18 C
19836.8 C-0.16 C
19846.9 C-0.06 C
19855.6 C-1.43 C
19867.2 C+0.18 C
19879.4 C+2.39 C
19887.4 C+0.42 C
19896.1 C-0.86 C
19907.8 C+0.83 C
19935.6 C-1.37 C
19946.9 C-0.06 C
19957.0 C+0.04 C
19965.2 C-1.77 C
19989.2 C+2.22 C
20027.4 C+0.38 C

The fitted trend in annual mean temperature here over 1958 to 2002 is 0.1 C (-0.2 to 0.4) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.3 to 0.7) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Stewart
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.2 to 0.4) per decade0.2 F (-0.3 to 0.7) per decade1958 to 200236Not clearly different from zero
Mean daily maximum-0.04 C (-0.35 to 0.27) per decade-0.1 F (-0.6 to 0.5) per decade1958 to 200236Not clearly different from zero
Mean daily minimum0.25 C (-0.01 to 0.51) per decade0.44 F (-0.03 to 0.92) per decade1958 to 200236Not clearly different from zero

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

1957 to 2003
Yearly extremes at Stewart: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)198836.1 C (97.0 F)47
Coldest night (TNn)-37.2 C (-35.0 F)1977-31.1 C (-24.0 F)47
Wettest day (Rx1day)170.7 mm (6.7 in)199459.7 mm (2.4 in)47
Wettest five days (Rx5day)178.1 mm (7.0 in)199490.3 mm (3.6 in)46
Longest dry spell (CDD)73 days196328 days47

Hottest day (TXx)

Hottest day (TXx) at Stewart by year The hottest day of the year at Stewart, 1957 to 2003. The record is 41.1 C (106.0 F) in 1988, marked on the chart; the median year is 36.1 C (97.0 F). 0102030405019601970198019902000Record: 41.1 C (106.0 F) in 1988
The hottest day of the year at Stewart, 1957 to 2003. The record is 41.1 C (106.0 F) in 1988, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Stewart by year
YearHottest day (TXx)
195734.4 C (93.9 F)
195834.4 C (93.9 F)
195936.7 C (98.1 F)
196034.4 C (93.9 F)
196136.7 C (98.1 F)
196232.8 C (91.0 F)
196336.1 C (97.0 F)
196436.7 C (98.1 F)
196536.7 C (98.1 F)
196638.3 C (100.9 F)
196733.3 C (91.9 F)
196835.0 C (95.0 F)
196934.4 C (93.9 F)
197036.7 C (98.1 F)
197135.0 C (95.0 F)
197235.6 C (96.1 F)
197336.1 C (97.0 F)
197438.3 C (100.9 F)
197535.6 C (96.1 F)
197638.9 C (102.0 F)
197736.1 C (97.0 F)
197837.2 C (99.0 F)
197938.3 C (100.9 F)
198037.8 C (100.0 F)
198133.3 C (91.9 F)
198235.6 C (96.1 F)
198336.1 C (97.0 F)
198434.4 C (93.9 F)
198537.2 C (99.0 F)
198634.4 C (93.9 F)
198737.2 C (99.0 F)
198841.1 C (106.0 F)
198937.2 C (99.0 F)
199038.3 C (100.9 F)
199135.6 C (96.1 F)
19921.7 C (35.1 F)
199333.3 C (91.9 F)
199435.0 C (95.0 F)
199538.9 C (102.0 F)
199635.6 C (96.1 F)
199735.0 C (95.0 F)
199835.0 C (95.0 F)
199936.7 C (98.1 F)
200036.1 C (97.0 F)
200136.7 C (98.1 F)
200236.1 C (97.0 F)
200335.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Stewart by year The coldest night of the year at Stewart, 1957 to 2003. The record is -37.2 C (-35.0 F) in 1977, marked on the chart; the median year is -31.1 C (-24.0 F). -40-35-30-25-20-1519601970198019902000Record: -37.2 C (-35.0 F) in 1977
The coldest night of the year at Stewart, 1957 to 2003. The record is -37.2 C (-35.0 F) in 1977, marked on the chart; the median year is -31.1 C (-24.0 F).
Coldest night (TNn) at Stewart by year
YearColdest night (TNn)
1957-19.4 C (-2.9 F)
1958-29.4 C (-20.9 F)
1959-29.4 C (-20.9 F)
1960-28.9 C (-20.0 F)
1961-29.4 C (-20.9 F)
1962-35.0 C (-31.0 F)
1963-36.1 C (-33.0 F)
1964-25.0 C (-13.0 F)
1965-22.2 C (-8.0 F)
1966-33.3 C (-27.9 F)
1967-32.2 C (-26.0 F)
1968-30.6 C (-23.1 F)
1969-30.6 C (-23.1 F)
1970-36.7 C (-34.1 F)
1971-32.2 C (-26.0 F)
1972-33.9 C (-29.0 F)
1973-32.8 C (-27.0 F)
1974-36.1 C (-33.0 F)
1975-31.7 C (-25.1 F)
1976-31.7 C (-25.1 F)
1977-37.2 C (-35.0 F)
1978-31.1 C (-24.0 F)
1979-32.2 C (-26.0 F)
1980-26.1 C (-15.0 F)
1981-33.3 C (-27.9 F)
1982-33.3 C (-27.9 F)
1983-34.4 C (-29.9 F)
1984-33.9 C (-29.0 F)
1985-32.2 C (-26.0 F)
1986-30.6 C (-23.1 F)
1987-27.2 C (-17.0 F)
1988-32.2 C (-26.0 F)
1989-33.3 C (-27.9 F)
1990-31.1 C (-24.0 F)
1991-26.7 C (-16.1 F)
1992-26.1 C (-15.0 F)
1993-31.7 C (-25.1 F)
1994-34.4 C (-29.9 F)
1995-28.9 C (-20.0 F)
1996-36.7 C (-34.1 F)
1997-28.9 C (-20.0 F)
1998-28.9 C (-20.0 F)
1999-30.0 C (-22.0 F)
2000-28.3 C (-18.9 F)
2001-30.6 C (-23.1 F)
2002-21.7 C (-7.1 F)
2003-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Stewart by year The wettest day of the year at Stewart, 1957 to 2003. The record is 170.7 mm (6.7 in) in 1994, marked on the chart; the median year is 59.7 mm (2.4 in). 05010015020019601970198019902000Record: 170.7 mm (6.7 in) in 1994
The wettest day of the year at Stewart, 1957 to 2003. The record is 170.7 mm (6.7 in) in 1994, marked on the chart; the median year is 59.7 mm (2.4 in).
Wettest day (Rx1day) at Stewart by year
YearWettest day (Rx1day)
1957101.6 mm (4.0 in)
195850.8 mm (2.0 in)
195939.4 mm (1.6 in)
196041.4 mm (1.6 in)
196150.8 mm (2.0 in)
196243.9 mm (1.7 in)
196351.6 mm (2.0 in)
196464.8 mm (2.6 in)
196563.5 mm (2.5 in)
196651.3 mm (2.0 in)
196764.3 mm (2.5 in)
196869.3 mm (2.7 in)
196942.4 mm (1.7 in)
197058.4 mm (2.3 in)
197147.0 mm (1.9 in)
197250.0 mm (2.0 in)
197359.9 mm (2.4 in)
197429.2 mm (1.1 in)
197562.5 mm (2.5 in)
197629.7 mm (1.2 in)
197761.5 mm (2.4 in)
197854.4 mm (2.1 in)
197955.4 mm (2.2 in)
198083.1 mm (3.3 in)
198174.9 mm (2.9 in)
198278.7 mm (3.1 in)
198381.3 mm (3.2 in)
198468.6 mm (2.7 in)
198545.7 mm (1.8 in)
198666.0 mm (2.6 in)
198766.0 mm (2.6 in)
198859.7 mm (2.4 in)
198966.0 mm (2.6 in)
199061.0 mm (2.4 in)
199150.8 mm (2.0 in)
19927.9 mm (0.31 in)
199371.1 mm (2.8 in)
1994170.7 mm (6.7 in)
1995104.1 mm (4.1 in)
199649.3 mm (1.9 in)
1997117.9 mm (4.6 in)
199846.2 mm (1.8 in)
199948.3 mm (1.9 in)
200038.1 mm (1.5 in)
200163.8 mm (2.5 in)
200288.9 mm (3.5 in)
200338.1 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Stewart by year The wettest five days of the year at Stewart, 1957 to 2003. The record is 178.1 mm (7.0 in) in 1994, marked on the chart; the median year is 90.3 mm (3.6 in). 05010015020019601970198019902000Record: 178.1 mm (7.0 in) in 1994
The wettest five days of the year at Stewart, 1957 to 2003. The record is 178.1 mm (7.0 in) in 1994, marked on the chart; the median year is 90.3 mm (3.6 in).
Wettest five days (Rx5day) at Stewart by year
YearWettest five days (Rx5day)
1957157.5 mm (6.2 in)
195873.9 mm (2.9 in)
195979.8 mm (3.1 in)
196064.3 mm (2.5 in)
196196.8 mm (3.8 in)
196276.5 mm (3.0 in)
1963113.1 mm (4.5 in)
196492.1 mm (3.6 in)
196592.2 mm (3.6 in)
196662.2 mm (2.4 in)
196772.9 mm (2.9 in)
1968103.6 mm (4.1 in)
196972.3 mm (2.8 in)
197098.2 mm (3.9 in)
197191.5 mm (3.6 in)
197273.6 mm (2.9 in)
197369.3 mm (2.7 in)
197451.3 mm (2.0 in)
197572.9 mm (2.9 in)
197630.0 mm (1.2 in)
1977110.0 mm (4.3 in)
197878.3 mm (3.1 in)
197981.0 mm (3.2 in)
1980100.4 mm (4.0 in)
1981107.4 mm (4.2 in)
1982120.5 mm (4.7 in)
1983121.9 mm (4.8 in)
1984104.1 mm (4.1 in)
198586.5 mm (3.4 in)
1986132.1 mm (5.2 in)
1987101.6 mm (4.0 in)
198886.4 mm (3.4 in)
198986.3 mm (3.4 in)
199097.4 mm (3.8 in)
199189.0 mm (3.5 in)
1992n/a
1993124.7 mm (4.9 in)
1994178.1 mm (7.0 in)
1995119.9 mm (4.7 in)
199674.5 mm (2.9 in)
1997139.2 mm (5.5 in)
199883.0 mm (3.3 in)
199969.9 mm (2.8 in)
200053.6 mm (2.1 in)
200198.0 mm (3.9 in)
2002113.1 mm (4.5 in)
200363.5 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Stewart by year The longest dry spell of the year at Stewart, 1957 to 2003. The record is 73 days in 1963, marked on the chart; the median year is 28 days. 02040608019601970198019902000Record: 73 days in 1963
The longest dry spell of the year at Stewart, 1957 to 2003. The record is 73 days in 1963, marked on the chart; the median year is 28 days.
Longest dry spell (CDD) at Stewart by year
YearLongest dry spell (CDD)
195729 days
195831 days
195939 days
196026 days
196132 days
196240 days
196373 days
196420 days
196522 days
196624 days
196740 days
196830 days
196923 days
197016 days
197118 days
197223 days
197325 days
197431 days
197529 days
197633 days
197719 days
197839 days
197924 days
198039 days
198129 days
198223 days
198321 days
198425 days
198526 days
198628 days
198729 days
198831 days
198936 days
199046 days
199118 days
19922 days
199319 days
199428 days
199535 days
199628 days
199737 days
199831 days
199930 days
200023 days
200116 days
200242 days
200315 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Stewart falls on 7 May and the median first autumn frost on 28 September, which leaves a median of 144 days between them.

Fitted over all years, the growing season changes by +4.1 days per decade at this station.

Frost dates and growing season at Stewart
MeasureMedian, all yearsEarliest periodRecent period (1966 to 2002)Recent against earliestFitted trend
Last spring frost7 Mayn/a4 Mayn/a-3.9 days per decade
First autumn frost28 Septembern/a28 Septembern/a+0.2 days per decade
Growing days144 daysn/a144 daysn/a+4.1 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

41 years, 1958 to 2002

A day with at least 56.6 mm (2.2 in) of rain is expected about once in 2 years. A day with at least 154.0 mm (6.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Stewart: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years56.6 mm (2.2 in)
5 years76.0 mm (3.0 in)
10 years91.2 mm (3.6 in)
25 years113.5 mm (4.5 in)
50 years132.6 mm (5.2 in)Longer than the 41 years of record
100 years154.0 mm (6.1 in)Longer than the 41 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, 41 years of values from 1958 to 2002.

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: 170.7 mm (6.7 in) in 1994; 117.9 mm (4.6 in) in 1997; 104.1 mm (4.1 in) in 1995.

Download the Data

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