Built 2026-10-15 (15 October 2026)

Newton Weather Records (USC00135992)

Record envelope, standing records and threshold days for Newton (USC00135992), Iowa, United States, with 132 years of record.

Key Facts for Newton

  • Newton (USC00135992) is a weather station in Iowa, United States at 41.71 latitude and -93.03 longitude, 293 m (960 ft) above sea level.
  • The station reports from 1893 to 2024, 132 years of record.
  • 1,464 records set at Newton still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Newton set a daily record precipitation of 58.7 mm (2.3 in) on 20 May 2024.

About the Station

  • Location: Iowa, United States, 41.71 latitude, -93.03 longitude.
  • Elevation: 293 m (960 ft).
  • Period of record: 1893 to 2024, 132 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 Newton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Newton. 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 Newton. 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 Newton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.0 C (68.0 F)-35.0 C (-31.0 F)n/an/a
Feb25.0 C (77.0 F)-33.3 C (-27.9 F)n/an/a
Mar32.2 C (90.0 F)-27.8 C (-18.0 F)n/an/a
Apr35.6 C (96.1 F)-12.8 C (9.0 F)n/an/a
May37.2 C (99.0 F)-2.2 C (28.0 F)n/an/a
Jun38.9 C (102.0 F)5.0 C (41.0 F)n/an/a
Jul41.1 C (106.0 F)6.7 C (44.1 F)n/an/a
Aug40.6 C (105.1 F)2.8 C (37.0 F)n/an/a
Sep37.8 C (100.0 F)-2.8 C (27.0 F)n/an/a
Oct35.0 C (95.0 F)-10.6 C (12.9 F)n/an/a
Nov26.7 C (80.1 F)-22.2 C (-8.0 F)n/an/a
Dec23.3 C (73.9 F)-30.0 C (-22.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Newton by the year they were set 1,464 records at Newton still stand. 1897 holds the most, with 36. 0102030401893: 311894: 301895: 291896: 221897: 361898: 201899: 171948: 111949: 121950: 291951: 211952: 101953: 161954: 231955: 281956: 181957: 91958: 121959: 191960: 151961: 101962: 251963: 271964: 211965: 231966: 231967: 181968: 161969: 91970: 201971: 151972: 231973: 91974: 241975: 191976: 191977: 241978: 51979: 51980: 81981: 241982: 161983: 321984: 131985: 191986: 151987: 201988: 261989: 241990: 281991: 251992: 141993: 71994: 131995: 71996: 151997: 131998: 221999: 162000: 162001: 132002: 132003: 152004: 112005: 102006: 192007: 82008: 142009: 192010: 82011: 152012: 282013: 152014: 202015: 152016: 72017: 152018: 262019: 212020: 122021: 162022: 122023: 132024: 31893195019591968197719861995200420132022
1,464 records at Newton still stand. 1897 holds the most, with 36.
Standing records at Newton by the year they were set
Year setStanding records
189331
189430
189529
189622
189736
189820
189917
194811
194912
195029
195121
195210
195316
195423
195528
195618
19579
195812
195919
196015
196110
196225
196327
196421
196523
196623
196718
196816
19699
197020
197115
197223
19739
197424
197519
197619
197724
19785
19795
19808
198124
198216
198332
198413
198519
198615
198720
198826
198924
199028
199125
199214
19937
199413
19957
199615
199713
199822
199916
200016
200113
200213
200315
200411
200510
200619
20078
200814
200919
20108
201115
201228
201315
201420
201515
20167
201715
201826
201921
202012
202116
202212
202313
20243

All-Time Record Progression

4 new records
When Newton set new all-time records 4 all-time records were set at Newton between 10 January 1982 and 3 September 2018. Each dot is a new record. Record low minimum temperatureRecord high minimum temperatureRecord daily precipitation10 January 1982: Record low minimum temperature -35.0 C (-31.0 F)28 July 1983: Record high minimum temperature 26.7 C (80.1 F)17 June 1990: Record daily precipitation 110.7 mm (4.4 in)3 September 2018: Record daily precipitation 136.4 mm (5.4 in)1985199019952000200520102015
4 all-time records were set at Newton between 10 January 1982 and 3 September 2018. Each dot is a new record.
When Newton set new all-time records
DateKindDetail
1982-01-10Record low minimum temperatureRecord low minimum temperature -35.0 C (-31.0 F)
1983-07-28Record high minimum temperatureRecord high minimum temperature 26.7 C (80.1 F)
1990-06-17Record daily precipitationRecord daily precipitation 110.7 mm (4.4 in)
2018-09-03Record daily precipitationRecord daily precipitation 136.4 mm (5.4 in)

Wettest Day of Each Month

Sep: 136.4 mm (5.4 in)
Record daily precipitation for each month at Newton The wettest day on record for each calendar month at Newton. The most was 136.4 mm (5.4 in) on 3 September 2018. 050100150 Jan: 40.4 mm (1.6 in), 12 January 1960 Jan Feb: 31.0 mm (1.2 in), 18 February 1961 Feb Mar: 45.7 mm (1.8 in), 3 March 1970 Mar Apr: 82.3 mm (3.2 in), 29 April 1974 Apr May: 79.8 mm (3.1 in), 26 May 2013 May Jun: 110.7 mm (4.4 in), 17 June 1990 Jun Jul: 88.9 mm (3.5 in), 31 July 1896 Jul Aug: 103.6 mm (4.1 in), 5 August 1970 Aug Sep: 136.4 mm (5.4 in), 3 September 2018 Sep Oct: 102.1 mm (4.0 in), 2 October 2019 Oct Nov: 83.6 mm (3.3 in), 4 November 2003 Nov Dec: 58.2 mm (2.3 in), 14 December 2015 Dec
The wettest day on record for each calendar month at Newton. The most was 136.4 mm (5.4 in) on 3 September 2018.
Record daily precipitation for each month at Newton
MonthRecord daily precipitation (mm)Date
Jan40.4 mm (1.6 in)12 January 1960
Feb31.0 mm (1.2 in)18 February 1961
Mar45.7 mm (1.8 in)3 March 1970
Apr82.3 mm (3.2 in)29 April 1974
May79.8 mm (3.1 in)26 May 2013
Jun110.7 mm (4.4 in)17 June 1990
Jul88.9 mm (3.5 in)31 July 1896
Aug103.6 mm (4.1 in)5 August 1970
Sep136.4 mm (5.4 in)3 September 2018
Oct102.1 mm (4.0 in)2 October 2019
Nov83.6 mm (3.3 in)4 November 2003
Dec58.2 mm (2.3 in)14 December 2015

Period of Record Coverage

1893 to 2024
Days with data per year at Newton 84 years of record at Newton, 1893 to 2024. 4 years have data for under 90 percent of days and are left out of rankings: 1899, 1948, 1973, 2024. 1893: 364 of 365 days1894: 364 of 365 days1895: 364 of 365 days1896: 366 of 366 days1897: 362 of 365 days1898: 365 of 365 days1899: 237 of 365 days1948: 275 of 366 days1949: 364 of 365 days1950: 357 of 365 days1951: 336 of 365 days1952: 343 of 366 days1953: 340 of 365 days1954: 358 of 365 days1955: 361 of 365 days1956: 364 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 363 of 365 days1960: 359 of 366 days1961: 363 of 365 days1962: 365 of 365 days1963: 364 of 365 days1964: 365 of 366 days1965: 363 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 333 of 365 days1970: 364 of 365 days1971: 355 of 365 days1972: 365 of 366 days1973: 300 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 335 of 366 days1977: 330 of 365 days1978: 360 of 365 days1979: 362 of 365 days1980: 360 of 366 days1981: 332 of 365 days1982: 333 of 365 days1983: 362 of 365 days1984: 366 of 366 days1985: 355 of 365 days1986: 360 of 365 days1987: 358 of 365 days1988: 362 of 366 days1989: 364 of 365 days1990: 363 of 365 days1991: 364 of 365 days1992: 358 of 366 days1993: 361 of 365 days1994: 351 of 365 days1995: 347 of 365 days1996: 353 of 366 days1997: 359 of 365 days1998: 364 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 364 of 365 days2002: 363 of 365 days2003: 364 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 365 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 364 of 366 days2013: 364 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 365 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 360 of 365 days2024: 137 of 366 days19501965198019952010
84 years of record at Newton, 1893 to 2024. 4 years have data for under 90 percent of days and are left out of rankings: 1899, 1948, 1973, 2024.
Days with data per year at Newton
YearDays with dataShare of yearComplete
1893364100%Yes
1894364100%Yes
1895364100%Yes
1896366100%Yes
189736299%Yes
1898365100%Yes
189923765%No
194827575%No
1949364100%Yes
195035798%Yes
195133692%Yes
195234394%Yes
195334093%Yes
195435898%Yes
195536199%Yes
195636499%Yes
1957364100%Yes
1958364100%Yes
195936399%Yes
196035998%Yes
196136399%Yes
1962365100%Yes
1963364100%Yes
1964365100%Yes
196536399%Yes
1966365100%Yes
1967365100%Yes
1968365100%Yes
196933391%Yes
1970364100%Yes
197135597%Yes
1972365100%Yes
197330082%No
1974364100%Yes
1975365100%Yes
197633592%Yes
197733090%Yes
197836099%Yes
197936299%Yes
198036098%Yes
198133291%Yes
198233391%Yes
198336299%Yes
1984366100%Yes
198535597%Yes
198636099%Yes
198735898%Yes
198836299%Yes
1989364100%Yes
199036399%Yes
1991364100%Yes
199235898%Yes
199336199%Yes
199435196%Yes
199534795%Yes
199635396%Yes
199735998%Yes
1998364100%Yes
1999365100%Yes
2000365100%Yes
2001364100%Yes
200236399%Yes
2003364100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008365100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
201236499%Yes
2013364100%Yes
2014365100%Yes
2015365100%Yes
2016365100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
202336099%Yes
202413737%No

Latest Records

20
Latest records at Newton
DateStationRecordValueBeat old record byOld record stoodSignificance
20 May 2024Newton, USdaily rain58.7 mm (2.3 in)5.9 mm (0.23 in)11 years17 of 100 (Routine)
4 March 2024Newton, USdaily high max24.4 C (75.9 F)3.3 C (5.9 F)41 years26 of 100 (Routine)
27 February 2024Newton, USmonthly high max25.0 C (77.0 F)2.8 C (5.0 F)7 years25 of 100 (Routine)
9 February 2024Newton, USdaily high max17.2 C (63.0 F)2.2 C (4.0 F)24 years20 of 100 (Routine)
8 February 2024Newton, USdaily high min (Tie)2.8 C (37.0 F)tie57 years6 of 100 (Routine)
26 January 2024Newton, USdaily high min (Tie)0.6 C (33.1 F)tie42 years5 of 100 (Routine)
24 January 2024Newton, USdaily snow depth (Tie)25.4 cm (10.0 in)tie53 years6 of 100 (Routine)
23 January 2024Newton, USdaily snow depth27.9 cm (11.0 in)2.5 cm (1.0 in)61 years31 of 100 (Routine)
22 January 2024Newton, USdaily snow depth30.5 cm (12.0 in)5.1 cm (2.0 in)61 years34 of 100 (Routine)
21 January 2024Newton, USdaily snow depth33.0 cm (13.0 in)5.1 cm (2.0 in)52 years31 of 100 (Routine)
20 January 2024Newton, USdaily snow depth35.6 cm (14.0 in)7.7 cm (3.0 in)52 years34 of 100 (Routine)
19 January 2024Newton, USdaily snow depth38.1 cm (15.0 in)10.2 cm (4.0 in)52 years38 of 100 (Notable)
18 January 2024Newton, USdaily snow depth30.5 cm (12.0 in)2.6 cm (1.0 in)52 years28 of 100 (Routine)
17 January 2024Newton, USdaily snow depth33.0 cm (13.0 in)5.1 cm (2.0 in)52 years31 of 100 (Routine)
16 January 2024Newton, USdaily snow depth33.0 cm (13.0 in)5.1 cm (2.0 in)52 years31 of 100 (Routine)
15 January 2024Newton, USdaily snow depth35.6 cm (14.0 in)7.7 cm (3.0 in)52 years34 of 100 (Routine)
14 January 2024Newton, USdaily snow depth35.6 cm (14.0 in)7.7 cm (3.0 in)52 years34 of 100 (Routine)
13 January 2024Newton, USdaily snow depth35.6 cm (14.0 in)7.7 cm (3.0 in)52 years34 of 100 (Routine)
12 January 2024Newton, USdaily snow depth30.5 cm (12.0 in)2.6 cm (1.0 in)52 years28 of 100 (Routine)
9 January 2024Newton, USdaily snowfall16.8 cm (6.6 in)11.7 cm (4.6 in)49 years49 of 100 (Notable)

Climate Trend

73 complete years, 1893 to 2023
Annual mean temperature at Newton as warming stripes, 1893 to 2023 One stripe for each of 73 complete years at Newton, 1893 to 2023. Blue stripes are years cooler than the station's own mean of 9.7 C (49.4 F); red stripes are warmer. The coolest year was 2014, at 7.6 C (45.7 F), and the warmest was 1987, at 12.0 C (53.6 F). The strongest colour marks a difference of 2.4 C (4.3 F). 1893: 7.8 C, -1.9 C from the station mean1894: 10.2 C, +0.5 C from the station mean1895: 8.9 C, -0.8 C from the station mean1896: 9.4 C, -0.3 C from the station mean1897: 9.1 C, -0.6 C from the station mean1898: 9.3 C, -0.4 C from the station mean1949: 10.4 C, +0.7 C from the station mean1950: 8.9 C, -0.8 C from the station mean1954: 11.3 C, +1.6 C from the station mean1955: 10.8 C, +1.1 C from the station mean1956: 10.9 C, +1.2 C from the station mean1957: 10.4 C, +0.7 C from the station mean1958: 10.0 C, +0.3 C from the station mean1959: 10.0 C, +0.3 C from the station mean1960: 9.4 C, -0.3 C from the station mean1961: 10.1 C, +0.4 C from the station mean1962: 9.8 C, +0.1 C from the station mean1963: 10.5 C, +0.8 C from the station mean1964: 10.7 C, +1.0 C from the station mean1965: 9.9 C, +0.2 C from the station mean1966: 9.7 C, 0.0 C from the station mean1967: 9.9 C, +0.2 C from the station mean1968: 10.3 C, +0.7 C from the station mean1970: 9.9 C, +0.2 C from the station mean1971: 10.3 C, +0.6 C from the station mean1972: 7.8 C, -1.9 C from the station mean1974: 9.3 C, -0.4 C from the station mean1975: 9.0 C, -0.7 C from the station mean1978: 8.3 C, -1.4 C from the station mean1979: 8.1 C, -1.6 C from the station mean1980: 9.6 C, -0.1 C from the station mean1982: 8.7 C, -1.0 C from the station mean1983: 9.8 C, +0.1 C from the station mean1984: 9.9 C, +0.2 C from the station mean1985: 9.0 C, -0.7 C from the station mean1986: 10.6 C, +0.9 C from the station mean1987: 12.0 C, +2.3 C from the station mean1988: 10.9 C, +1.2 C from the station mean1989: 9.6 C, -0.1 C from the station mean1990: 11.2 C, +1.5 C from the station mean1991: 10.8 C, +1.1 C from the station mean1992: 10.2 C, +0.5 C from the station mean1993: 9.0 C, -0.7 C from the station mean1994: 10.2 C, +0.5 C from the station mean1995: 10.0 C, +0.3 C from the station mean1996: 8.8 C, -0.9 C from the station mean1997: 9.8 C, +0.1 C from the station mean1998: 10.8 C, +1.1 C from the station mean1999: 10.0 C, +0.3 C from the station mean2000: 9.5 C, -0.2 C from the station mean2001: 9.6 C, -0.1 C from the station mean2002: 9.7 C, 0.0 C from the station mean2003: 8.9 C, -0.8 C from the station mean2004: 9.1 C, -0.6 C from the station mean2005: 9.8 C, +0.1 C from the station mean2006: 10.4 C, +0.7 C from the station mean2007: 9.5 C, -0.2 C from the station mean2008: 7.8 C, -1.9 C from the station mean2009: 8.2 C, -1.5 C from the station mean2010: 9.2 C, -0.5 C from the station mean2011: 9.3 C, -0.4 C from the station mean2012: 11.3 C, +1.6 C from the station mean2013: 8.3 C, -1.4 C from the station mean2014: 7.6 C, -2.1 C from the station mean2015: 9.8 C, +0.2 C from the station mean2016: 10.7 C, +1.0 C from the station mean2017: 10.3 C, +0.6 C from the station mean2018: 8.9 C, -0.8 C from the station mean2019: 8.6 C, -1.1 C from the station mean2020: 9.8 C, +0.2 C from the station mean2021: 10.3 C, +0.6 C from the station mean2022: 8.8 C, -0.9 C from the station mean2023: 10.5 C, +0.9 C from the station mean18931900191019201930194019501960197019801990200020102020
One stripe for each of 73 complete years at Newton, 1893 to 2023. Blue stripes are years cooler than the station's own mean of 9.7 C (49.4 F); red stripes are warmer. The coolest year was 2014, at 7.6 C (45.7 F), and the warmest was 1987, at 12.0 C (53.6 F). The strongest colour marks a difference of 2.4 C (4.3 F).
Annual mean temperature at Newton as warming stripes, 1893 to 2023
YearAnnual mean temperatureDifference from the station mean
18937.8 C-1.87 C
189410.2 C+0.52 C
18958.9 C-0.82 C
18969.4 C-0.31 C
18979.1 C-0.62 C
18989.3 C-0.41 C
194910.4 C+0.72 C
19508.9 C-0.78 C
195411.3 C+1.63 C
195510.8 C+1.12 C
195610.9 C+1.21 C
195710.4 C+0.70 C
195810.0 C+0.28 C
195910.0 C+0.31 C
19609.4 C-0.27 C
196110.1 C+0.40 C
19629.8 C+0.14 C
196310.5 C+0.76 C
196410.7 C+1.02 C
19659.9 C+0.17 C
19669.7 C+0.02 C
19679.9 C+0.21 C
196810.3 C+0.65 C
19709.9 C+0.22 C
197110.3 C+0.59 C
19727.8 C-1.86 C
19749.3 C-0.38 C
19759.0 C-0.70 C
19788.3 C-1.37 C
19798.1 C-1.59 C
19809.6 C-0.14 C
19828.7 C-1.04 C
19839.8 C+0.09 C
19849.9 C+0.24 C
19859.0 C-0.69 C
198610.6 C+0.89 C
198712.0 C+2.33 C
198810.9 C+1.16 C
19899.6 C-0.12 C
199011.2 C+1.46 C
199110.8 C+1.14 C
199210.2 C+0.52 C
19939.0 C-0.68 C
199410.2 C+0.49 C
199510.0 C+0.29 C
19968.8 C-0.86 C
19979.8 C+0.14 C
199810.8 C+1.14 C
199910.0 C+0.28 C
20009.5 C-0.19 C
20019.6 C-0.11 C
20029.7 C+0.02 C
20038.9 C-0.80 C
20049.1 C-0.58 C
20059.8 C+0.12 C
200610.4 C+0.68 C
20079.5 C-0.18 C
20087.8 C-1.94 C
20098.2 C-1.50 C
20109.2 C-0.51 C
20119.3 C-0.37 C
201211.3 C+1.59 C
20138.3 C-1.42 C
20147.6 C-2.07 C
20159.8 C+0.15 C
201610.7 C+0.98 C
201710.3 C+0.63 C
20188.9 C-0.76 C
20198.6 C-1.13 C
20209.8 C+0.15 C
202110.3 C+0.59 C
20228.8 C-0.89 C
202310.5 C+0.85 C

The fitted trend in annual mean temperature here over 1893 to 2023 is 0.00 C (-0.06 to 0.07) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.01 F (-0.11 to 0.12) per decade. The slope is a straight line fitted to 73 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Newton
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.00 C (-0.06 to 0.07) per decade0.01 F (-0.11 to 0.12) per decade1893 to 202373Not clearly different from zero
Mean daily maximum-0.03 C (-0.10 to 0.04) per decade-0.1 F (-0.2 to 0.1) per decade1893 to 202373Not clearly different from zero
Mean daily minimum0.04 C (-0.03 to 0.11) per decade0.1 F (-0.1 to 0.2) per decade1893 to 202373Not 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

1893 to 2024
Yearly extremes at Newton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)189436.1 C (97.0 F)84
Coldest night (TNn)-35.0 C (-31.0 F)1982-26.1 C (-15.0 F)84
Wettest day (Rx1day)136.4 mm (5.4 in)201857.9 mm (2.3 in)84
Wettest five days (Rx5day)258.8 mm (10.2 in)201893.3 mm (3.7 in)84
Longest dry spell (CDD)56 days195225 days84

Hottest day (TXx)

Hottest day (TXx) at Newton by year The hottest day of the year at Newton, 1893 to 2024. The record is 41.1 C (106.0 F) in 1894, marked on the chart; the median year is 36.1 C (97.0 F). 3032.53537.54042.51900192019401960198020002020Record: 41.1 C (106.0 F) in 1894
The hottest day of the year at Newton, 1893 to 2024. The record is 41.1 C (106.0 F) in 1894, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Newton by year
YearHottest day (TXx)
189335.0 C (95.0 F)
189441.1 C (106.0 F)
189536.7 C (98.1 F)
189635.6 C (96.1 F)
189737.2 C (99.0 F)
189836.1 C (97.0 F)
189933.9 C (93.0 F)
194838.3 C (100.9 F)
194935.0 C (95.0 F)
195033.9 C (93.0 F)
195135.0 C (95.0 F)
195235.6 C (96.1 F)
195336.7 C (98.1 F)
195438.3 C (100.9 F)
195540.0 C (104.0 F)
195639.4 C (102.9 F)
195737.8 C (100.0 F)
195835.6 C (96.1 F)
195935.0 C (95.0 F)
196035.6 C (96.1 F)
196135.6 C (96.1 F)
196235.6 C (96.1 F)
196337.8 C (100.0 F)
196436.1 C (97.0 F)
196537.2 C (99.0 F)
196636.7 C (98.1 F)
196735.6 C (96.1 F)
196836.1 C (97.0 F)
196935.0 C (95.0 F)
197036.7 C (98.1 F)
197136.1 C (97.0 F)
197235.6 C (96.1 F)
197334.4 C (93.9 F)
197437.2 C (99.0 F)
197535.6 C (96.1 F)
197633.9 C (93.0 F)
197738.9 C (102.0 F)
197833.9 C (93.0 F)
197935.6 C (96.1 F)
198038.9 C (102.0 F)
198134.4 C (93.9 F)
198234.4 C (93.9 F)
198339.4 C (102.9 F)
198435.6 C (96.1 F)
198536.7 C (98.1 F)
198635.0 C (95.0 F)
198738.3 C (100.9 F)
198840.6 C (105.1 F)
198937.8 C (100.0 F)
199036.7 C (98.1 F)
199136.7 C (98.1 F)
199233.3 C (91.9 F)
199333.3 C (91.9 F)
199435.6 C (96.1 F)
199538.3 C (100.9 F)
199635.0 C (95.0 F)
199737.2 C (99.0 F)
199836.7 C (98.1 F)
199938.3 C (100.9 F)
200036.1 C (97.0 F)
200136.7 C (98.1 F)
200235.6 C (96.1 F)
200337.2 C (99.0 F)
200433.3 C (91.9 F)
200536.7 C (98.1 F)
200638.3 C (100.9 F)
200735.0 C (95.0 F)
200834.4 C (93.9 F)
200935.6 C (96.1 F)
201035.6 C (96.1 F)
201137.2 C (99.0 F)
201240.6 C (105.1 F)
201338.9 C (102.0 F)
201433.9 C (93.0 F)
201534.4 C (93.9 F)
201635.6 C (96.1 F)
201736.1 C (97.0 F)
201837.2 C (99.0 F)
201935.6 C (96.1 F)
202035.6 C (96.1 F)
202136.7 C (98.1 F)
202237.8 C (100.0 F)
202337.8 C (100.0 F)
202431.1 C (88.0 F)

Coldest night (TNn)

Coldest night (TNn) at Newton by year The coldest night of the year at Newton, 1893 to 2024. The record is -35.0 C (-31.0 F) in 1982, marked on the chart; the median year is -26.1 C (-15.0 F). -35-30-25-20-151900192019401960198020002020Record: -35.0 C (-31.0 F) in 1982
The coldest night of the year at Newton, 1893 to 2024. The record is -35.0 C (-31.0 F) in 1982, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Newton by year
YearColdest night (TNn)
1893-28.3 C (-18.9 F)
1894-32.8 C (-27.0 F)
1895-30.6 C (-23.1 F)
1896-23.3 C (-9.9 F)
1897-28.9 C (-20.0 F)
1898-25.6 C (-14.1 F)
1899-33.3 C (-27.9 F)
1948-20.0 C (-4.0 F)
1949-26.1 C (-15.0 F)
1950-23.9 C (-11.0 F)
1951-26.1 C (-15.0 F)
1952-24.4 C (-11.9 F)
1953-22.2 C (-8.0 F)
1954-24.4 C (-11.9 F)
1955-25.6 C (-14.1 F)
1956-26.7 C (-16.1 F)
1957-28.9 C (-20.0 F)
1958-29.4 C (-20.9 F)
1959-26.1 C (-15.0 F)
1960-26.1 C (-15.0 F)
1961-25.0 C (-13.0 F)
1962-27.8 C (-18.0 F)
1963-30.6 C (-23.1 F)
1964-23.3 C (-9.9 F)
1965-26.1 C (-15.0 F)
1966-30.6 C (-23.1 F)
1967-27.2 C (-17.0 F)
1968-27.8 C (-18.0 F)
1969-25.0 C (-13.0 F)
1970-31.1 C (-24.0 F)
1971-26.7 C (-16.1 F)
1972-29.4 C (-20.9 F)
1973-24.4 C (-11.9 F)
1974-33.3 C (-27.9 F)
1975-26.7 C (-16.1 F)
1976-26.1 C (-15.0 F)
1977-28.9 C (-20.0 F)
1978-26.1 C (-15.0 F)
1979-29.4 C (-20.9 F)
1980-22.2 C (-8.0 F)
1981-27.8 C (-18.0 F)
1982-35.0 C (-31.0 F)
1983-29.4 C (-20.9 F)
1984-26.1 C (-15.0 F)
1985-30.0 C (-22.0 F)
1986-24.4 C (-11.9 F)
1987-21.1 C (-6.0 F)
1988-25.6 C (-14.1 F)
1989-30.0 C (-22.0 F)
1990-25.0 C (-13.0 F)
1991-22.8 C (-9.0 F)
1992-22.2 C (-8.0 F)
1993-21.7 C (-7.1 F)
1994-28.9 C (-20.0 F)
1995-23.9 C (-11.0 F)
1996-32.2 C (-26.0 F)
1997-25.0 C (-13.0 F)
1998-23.9 C (-11.0 F)
1999-29.4 C (-20.9 F)
2000-26.7 C (-16.1 F)
2001-22.8 C (-9.0 F)
2002-19.4 C (-2.9 F)
2003-22.8 C (-9.0 F)
2004-24.4 C (-11.9 F)
2005-23.3 C (-9.9 F)
2006-23.3 C (-9.9 F)
2007-22.8 C (-9.0 F)
2008-25.0 C (-13.0 F)
2009-31.1 C (-24.0 F)
2010-27.8 C (-18.0 F)
2011-22.8 C (-9.0 F)
2012-19.4 C (-2.9 F)
2013-28.9 C (-20.0 F)
2014-26.7 C (-16.1 F)
2015-25.6 C (-14.1 F)
2016-25.6 C (-14.1 F)
2017-24.4 C (-11.9 F)
2018-29.4 C (-20.9 F)
2019-30.6 C (-23.1 F)
2020-22.8 C (-9.0 F)
2021-27.8 C (-18.0 F)
2022-26.7 C (-16.1 F)
2023-23.9 C (-11.0 F)
2024-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Newton by year The wettest day of the year at Newton, 1893 to 2024. The record is 136.4 mm (5.4 in) in 2018, marked on the chart; the median year is 57.9 mm (2.3 in). 0501001501900192019401960198020002020Record: 136.4 mm (5.4 in) in 2018
The wettest day of the year at Newton, 1893 to 2024. The record is 136.4 mm (5.4 in) in 2018, marked on the chart; the median year is 57.9 mm (2.3 in).
Wettest day (Rx1day) at Newton by year
YearWettest day (Rx1day)
189370.6 mm (2.8 in)
189453.3 mm (2.1 in)
189563.0 mm (2.5 in)
189688.9 mm (3.5 in)
189742.9 mm (1.7 in)
189834.8 mm (1.4 in)
189940.6 mm (1.6 in)
194872.4 mm (2.9 in)
194947.0 mm (1.9 in)
195059.2 mm (2.3 in)
195139.1 mm (1.5 in)
195259.7 mm (2.4 in)
195339.4 mm (1.6 in)
195492.7 mm (3.6 in)
195551.6 mm (2.0 in)
195649.8 mm (2.0 in)
195736.6 mm (1.4 in)
195858.4 mm (2.3 in)
195974.7 mm (2.9 in)
196063.2 mm (2.5 in)
196194.7 mm (3.7 in)
196261.2 mm (2.4 in)
196396.8 mm (3.8 in)
196455.9 mm (2.2 in)
196554.1 mm (2.1 in)
196669.1 mm (2.7 in)
196788.4 mm (3.5 in)
196840.1 mm (1.6 in)
196945.5 mm (1.8 in)
1970103.6 mm (4.1 in)
197140.9 mm (1.6 in)
197248.0 mm (1.9 in)
197334.0 mm (1.3 in)
197497.3 mm (3.8 in)
197543.7 mm (1.7 in)
197659.2 mm (2.3 in)
197761.5 mm (2.4 in)
197863.0 mm (2.5 in)
197953.3 mm (2.1 in)
198050.3 mm (2.0 in)
198151.6 mm (2.0 in)
198257.9 mm (2.3 in)
198357.2 mm (2.3 in)
198455.9 mm (2.2 in)
198570.4 mm (2.8 in)
198652.6 mm (2.1 in)
198764.3 mm (2.5 in)
198851.6 mm (2.0 in)
198960.5 mm (2.4 in)
1990110.7 mm (4.4 in)
199156.6 mm (2.2 in)
199269.6 mm (2.7 in)
199393.7 mm (3.7 in)
199448.8 mm (1.9 in)
199545.0 mm (1.8 in)
199656.9 mm (2.2 in)
199767.1 mm (2.6 in)
199848.0 mm (1.9 in)
199952.6 mm (2.1 in)
200047.0 mm (1.9 in)
200158.9 mm (2.3 in)
200255.1 mm (2.2 in)
200383.6 mm (3.3 in)
200449.8 mm (2.0 in)
200545.2 mm (1.8 in)
200685.9 mm (3.4 in)
200772.9 mm (2.9 in)
200848.8 mm (1.9 in)
200977.7 mm (3.1 in)
201082.6 mm (3.3 in)
201145.2 mm (1.8 in)
201277.7 mm (3.1 in)
201379.8 mm (3.1 in)
201471.9 mm (2.8 in)
201571.1 mm (2.8 in)
201648.3 mm (1.9 in)
201757.9 mm (2.3 in)
2018136.4 mm (5.4 in)
2019102.1 mm (4.0 in)
202045.0 mm (1.8 in)
202152.8 mm (2.1 in)
202251.8 mm (2.0 in)
202358.9 mm (2.3 in)
202458.7 mm (2.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Newton by year The wettest five days of the year at Newton, 1893 to 2024. The record is 258.8 mm (10.2 in) in 2018, marked on the chart; the median year is 93.3 mm (3.7 in). 01002003001900192019401960198020002020Record: 258.8 mm (10.2 in) in 2018
The wettest five days of the year at Newton, 1893 to 2024. The record is 258.8 mm (10.2 in) in 2018, marked on the chart; the median year is 93.3 mm (3.7 in).
Wettest five days (Rx5day) at Newton by year
YearWettest five days (Rx5day)
189391.9 mm (3.6 in)
1894106.6 mm (4.2 in)
189580.0 mm (3.1 in)
1896107.2 mm (4.2 in)
1897106.5 mm (4.2 in)
189868.3 mm (2.7 in)
189981.8 mm (3.2 in)
1948109.2 mm (4.3 in)
194988.9 mm (3.5 in)
195065.3 mm (2.6 in)
195162.9 mm (2.5 in)
195299.1 mm (3.9 in)
195374.2 mm (2.9 in)
1954127.7 mm (5.0 in)
195576.5 mm (3.0 in)
195693.7 mm (3.7 in)
195776.7 mm (3.0 in)
195880.0 mm (3.1 in)
1959149.2 mm (5.9 in)
196092.7 mm (3.6 in)
1961130.5 mm (5.1 in)
196293.8 mm (3.7 in)
1963130.9 mm (5.2 in)
196479.5 mm (3.1 in)
1965108.7 mm (4.3 in)
1966111.3 mm (4.4 in)
1967137.6 mm (5.4 in)
196873.6 mm (2.9 in)
196975.2 mm (3.0 in)
1970129.7 mm (5.1 in)
197148.6 mm (1.9 in)
197271.3 mm (2.8 in)
197370.3 mm (2.8 in)
1974116.9 mm (4.6 in)
197559.4 mm (2.3 in)
197695.2 mm (3.7 in)
1977107.5 mm (4.2 in)
1978121.9 mm (4.8 in)
1979146.5 mm (5.8 in)
198063.1 mm (2.5 in)
198153.1 mm (2.1 in)
198296.3 mm (3.8 in)
1983120.9 mm (4.8 in)
198481.0 mm (3.2 in)
198583.3 mm (3.3 in)
198697.1 mm (3.8 in)
198797.1 mm (3.8 in)
198896.5 mm (3.8 in)
1989111.8 mm (4.4 in)
1990147.5 mm (5.8 in)
1991130.5 mm (5.1 in)
1992120.2 mm (4.7 in)
1993133.8 mm (5.3 in)
199478.0 mm (3.1 in)
199577.4 mm (3.0 in)
199695.7 mm (3.8 in)
199778.0 mm (3.1 in)
199870.3 mm (2.8 in)
199960.3 mm (2.4 in)
200092.8 mm (3.7 in)
200186.4 mm (3.4 in)
200292.3 mm (3.6 in)
2003132.6 mm (5.2 in)
200492.7 mm (3.6 in)
2005105.2 mm (4.1 in)
200691.2 mm (3.6 in)
2007114.6 mm (4.5 in)
2008110.3 mm (4.3 in)
200994.7 mm (3.7 in)
2010194.3 mm (7.6 in)
201180.3 mm (3.2 in)
201287.4 mm (3.4 in)
2013167.9 mm (6.6 in)
2014117.8 mm (4.6 in)
201590.9 mm (3.6 in)
201656.6 mm (2.2 in)
201761.2 mm (2.4 in)
2018258.8 mm (10.2 in)
2019136.2 mm (5.4 in)
2020101.3 mm (4.0 in)
202186.6 mm (3.4 in)
202258.9 mm (2.3 in)
202389.1 mm (3.5 in)
202459.0 mm (2.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Newton by year The longest dry spell of the year at Newton, 1893 to 2024. The record is 56 days in 1952, marked on the chart; the median year is 25 days. 02040601900192019401960198020002020Record: 56 days in 1952
The longest dry spell of the year at Newton, 1893 to 2024. The record is 56 days in 1952, marked on the chart; the median year is 25 days.
Longest dry spell (CDD) at Newton by year
YearLongest dry spell (CDD)
189326 days
189441 days
189522 days
189624 days
189723 days
189815 days
189927 days
194822 days
194927 days
195031 days
195118 days
195256 days
195346 days
195426 days
195521 days
195629 days
195727 days
195833 days
195919 days
196022 days
196123 days
196235 days
196318 days
196431 days
196520 days
196626 days
196745 days
196835 days
196935 days
197036 days
197131 days
197225 days
197318 days
197424 days
197525 days
197627 days
197716 days
197820 days
197919 days
198028 days
198125 days
198226 days
198319 days
198422 days
198520 days
198630 days
198741 days
198838 days
198924 days
199019 days
199123 days
199222 days
199324 days
199423 days
199525 days
199623 days
199713 days
199824 days
199949 days
200030 days
200114 days
200242 days
200319 days
200419 days
200531 days
200621 days
200727 days
200814 days
200924 days
201026 days
201122 days
201227 days
201329 days
201429 days
201526 days
201622 days
201735 days
201824 days
201927 days
202020 days
202120 days
202226 days
202324 days
202419 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

73 years with a frost

Across 73 years with a frost, the median last spring frost at Newton falls on 21 April and the median first autumn frost on 11 October, which leaves a median of 174 days between them.

In 1994 to 2023 the median growing season was 180 days. That is 18 days more than in 1893 to 1979.

Fitted over all years, the growing season changes by +1.9 days per decade at this station.

Frost dates and growing season at Newton
MeasureMedian, all yearsEarliest period (1893 to 1979)Recent period (1994 to 2023)Recent against earliestFitted trend
Last spring frost21 April28 April19 April9 days earlier-0.8 days per decade
First autumn frost11 October9 October16 October7 days later+1.1 days per decade
Growing days174 days162 days180 days18 days more+1.9 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

79 years, 1893 to 2023

A day with at least 58.2 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 136.1 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Newton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years58.2 mm (2.3 in)
5 years75.0 mm (3.0 in)
10 years87.6 mm (3.4 in)
25 years105.4 mm (4.1 in)
50 years120.1 mm (4.7 in)
100 years136.1 mm (5.4 in)Longer than the 79 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, 79 years of values from 1893 to 2023.

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: 136.4 mm (5.4 in) in 2018; 110.7 mm (4.4 in) in 1990; 103.6 mm (4.1 in) in 1970.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of Newton, at 1971, 1983 and 1999. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1971 ran 0.9 C (1.6 F) lower than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1983 ran 0.7 C (1.3 F) higher than in the years before (likely change).
  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1999 ran 0.4 C (0.7 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Newton, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1971-0.9-1.6likely5
1983+0.7+1.3likely5
1999-0.4-0.7likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2009 to 2023 against 1961 to 1990

Over 2009 to 2023, Newton had a mean temperature of 9.4 C (49.0 F) and 884.0 mm (34.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Dixon Wwtp (United States, 292 km away), Kewanee 1E (United States, 266 km away) and Dubuque L&D 11 (United States, 217 km away).

Climate twins of Newton: stations whose 1961 to 1990 climate is closest to its 2009 to 2023 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Dixon WwtpUnited States292 km (181 mi)9.2 C (48.6 F)888.0 mm (35.0 in)0.68
Kewanee 1EUnited States266 km (165 mi)9.7 C (49.5 F)915.3 mm (36.0 in)0.69
Dubuque L&D 11United States217 km (135 mi)9.5 C (49.1 F)822.8 mm (32.4 in)0.71

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

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