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Moline Quad City Intl AP Weather Records (USW00014923)

Record envelope, standing records and threshold days for Moline Quad City Intl AP (USW00014923), Illinois, United States, with 84 years of record.

Key Facts for Moline Quad City Intl AP

  • Moline Quad City Intl AP (USW00014923) is a weather station in Illinois, United States at 41.45 latitude and -90.52 longitude, 176 m (576 ft) above sea level.
  • The station reports from 1943 to 2026, 84 years of record.
  • 1,464 records set at Moline Quad City Intl AP still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Moline Quad City Intl AP set a daily record high maximum temperature of 31.1 C (88.0 F) on 12 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Illinois, United States, 41.45 latitude, -90.52 longitude.
  • Elevation: 176 m (576 ft).
  • Period of record: 1943 to 2026, 84 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

8 days at or beyond a record
Daily record high and record low at Moline Quad City Intl AP, with 2026 drawn through them The band shows the record high and record low for each calendar day at Moline Quad City Intl AP. The lines show the 2026 daily maximum and minimum. 8 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 Moline Quad City Intl AP. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Moline Quad City Intl AP, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.6 C (69.1 F)-36.0 C (-32.8 F)16.1 C (61.0 F)-24.4 C (-11.9 F)
Feb26.1 C (79.0 F)-33.3 C (-27.9 F)22.2 C (72.0 F)-17.8 C (0.0 F)
Mar31.1 C (88.0 F)-28.3 C (-18.9 F)30.0 C (86.0 F)-13.9 C (7.0 F)
Apr33.9 C (93.0 F)-13.9 C (7.0 F)29.4 C (84.9 F)-2.2 C (28.0 F)
May37.2 C (99.0 F)-3.9 C (25.0 F)31.7 C (89.1 F)-1.7 C (28.9 F)
Jun40.0 C (104.0 F)3.9 C (39.0 F)33.3 C (91.9 F)9.4 C (48.9 F)
Jul40.0 C (104.0 F)7.8 C (46.0 F)35.6 C (96.1 F)11.1 C (52.0 F)
Aug39.4 C (102.9 F)4.4 C (39.9 F)32.8 C (91.0 F)11.7 C (53.1 F)
Sep37.2 C (99.0 F)-1.1 C (30.0 F)35.6 C (96.1 F)6.7 C (44.1 F)
Oct35.0 C (95.0 F)-8.9 C (16.0 F)31.1 C (88.0 F)6.1 C (43.0 F)
Nov26.7 C (80.1 F)-22.8 C (-9.0 F)n/an/a
Dec23.9 C (75.0 F)-31.1 C (-24.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Moline Quad City Intl AP by the year they were set 1,464 records at Moline Quad City Intl AP still stand. 1963 holds the most, with 38. 0102030401943: 111944: 171945: 241946: 171947: 241948: 81949: 181950: 281951: 191952: 221953: 211954: 151955: 201956: 101957: 121958: 161959: 161960: 291961: 121962: 271963: 381964: 171965: 191966: 181967: 281968: 191969: 121970: 191971: 171972: 171973: 141974: 161975: 161976: 191977: 171978: 121979: 261980: 111981: 131982: 171983: 291984: 161985: 261986: 161987: 151988: 281989: 261990: 221991: 281992: 191993: 91994: 131995: 101996: 191997: 151998: 181999: 82000: 242001: 102002: 132003: 132004: 132005: 212006: 292007: 172008: 72009: 122010: 62011: 72012: 262013: 62014: 252015: 102016: 92017: 262018: 202019: 212020: 132021: 172022: 152023: 152024: 172025: 92026: 151943195219611970197919881997200620152024
1,464 records at Moline Quad City Intl AP still stand. 1963 holds the most, with 38.
Standing records at Moline Quad City Intl AP by the year they were set
Year setStanding records
194311
194417
194524
194617
194724
19488
194918
195028
195119
195222
195321
195415
195520
195610
195712
195816
195916
196029
196112
196227
196338
196417
196519
196618
196728
196819
196912
197019
197117
197217
197314
197416
197516
197619
197717
197812
197926
198011
198113
198217
198329
198416
198526
198616
198715
198828
198926
199022
199128
199219
19939
199413
199510
199619
199715
199818
19998
200024
200110
200213
200313
200413
200521
200629
200717
20087
200912
20106
20117
201226
20136
201425
201510
20169
201726
201820
201921
202013
202117
202215
202315
202417
20259
202615

All-Time Record Progression

8 new records
When Moline Quad City Intl AP set new all-time records 8 all-time records were set at Moline Quad City Intl AP between 2 January 1979 and 19 July 2019. Each dot is a new record. Record low minimum temperatureRecord snow depthRecord high maximum temperatureRecord high minimum temperature2 January 1979: Record low minimum temperature -32.8 C (-27.0 F)13 January 1979: Record snow depth 43.2 cm (17.0 in)14 January 1979: Record snow depth 71.1 cm (28.0 in)25 June 1988: Record high maximum temperature 40.0 C (104.0 F)3 February 1996: Record low minimum temperature -33.3 C (-27.9 F)30 January 2019: Record low minimum temperature -33.8 C (-28.8 F)31 January 2019: Record low minimum temperature -36.0 C (-32.8 F)19 July 2019: Record high minimum temperature 27.2 C (81.0 F)19801990200020102020
8 all-time records were set at Moline Quad City Intl AP between 2 January 1979 and 19 July 2019. Each dot is a new record.
When Moline Quad City Intl AP set new all-time records
DateKindDetail
1979-01-02Record low minimum temperatureRecord low minimum temperature -32.8 C (-27.0 F)
1979-01-13Record snow depthRecord snow depth 43.2 cm (17.0 in)
1979-01-14Record snow depthRecord snow depth 71.1 cm (28.0 in)
1988-06-25Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
1996-02-03Record low minimum temperatureRecord low minimum temperature -33.3 C (-27.9 F)
2019-01-30Record low minimum temperatureRecord low minimum temperature -33.8 C (-28.8 F)
2019-01-31Record low minimum temperatureRecord low minimum temperature -36.0 C (-32.8 F)
2019-07-19Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)

Wettest Day of Each Month

Sep: 157.7 mm (6.2 in)
Record daily precipitation for each month at Moline Quad City Intl AP The wettest day on record for each calendar month at Moline Quad City Intl AP. The most was 157.7 mm (6.2 in) on 13 September 1961. 050100150200 Jan: 43.2 mm (1.7 in), 3 January 1971 Jan Feb: 45.2 mm (1.8 in), 27 February 1948 Feb Mar: 54.9 mm (2.2 in), 22 March 1993 Mar Apr: 108.2 mm (4.3 in), 21 April 1973 Apr May: 88.9 mm (3.5 in), 20 May 2025 May Jun: 129.5 mm (5.1 in), 30 June 2014 Jun Jul: 129.0 mm (5.1 in), 10 July 1971 Jul Aug: 116.8 mm (4.6 in), 29 August 1951 Aug Sep: 157.7 mm (6.2 in), 13 September 1961 Sep Oct: 121.2 mm (4.8 in), 10 October 1954 Oct Nov: 54.1 mm (2.1 in), 17 November 2015 Nov Dec: 79.0 mm (3.1 in), 2 December 1982 Dec
The wettest day on record for each calendar month at Moline Quad City Intl AP. The most was 157.7 mm (6.2 in) on 13 September 1961.
Record daily precipitation for each month at Moline Quad City Intl AP
MonthRecord daily precipitation (mm)Date
Jan43.2 mm (1.7 in)3 January 1971
Feb45.2 mm (1.8 in)27 February 1948
Mar54.9 mm (2.2 in)22 March 1993
Apr108.2 mm (4.3 in)21 April 1973
May88.9 mm (3.5 in)20 May 2025
Jun129.5 mm (5.1 in)30 June 2014
Jul129.0 mm (5.1 in)10 July 1971
Aug116.8 mm (4.6 in)29 August 1951
Sep157.7 mm (6.2 in)13 September 1961
Oct121.2 mm (4.8 in)10 October 1954
Nov54.1 mm (2.1 in)17 November 2015
Dec79.0 mm (3.1 in)2 December 1982

Period of Record Coverage

1943 to 2026
Days with data per year at Moline Quad City Intl AP 84 years of record at Moline Quad City Intl AP, 1943 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1943, 2026. 1943: 222 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 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: 365 of 365 days2024: 365 of 366 days2025: 365 of 365 days2026: 285 of 365 days195019651980199520102025
84 years of record at Moline Quad City Intl AP, 1943 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1943, 2026.
Days with data per year at Moline Quad City Intl AP
YearDays with dataShare of yearComplete
194322261%No
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024365100%Yes
2025365100%Yes
202628578%No

Latest Records

20
Latest records at Moline Quad City Intl AP
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Moline Quad City Intl AP, USdaily high max (Provisional)31.1 C (88.0 F)0.5 C (0.9 F)79 years31 of 100 (Routine)
1 October 2026Moline Quad City Intl AP, USdaily rain (Provisional)35.8 mm (1.4 in)5.3 mm (0.21 in)16 years17 of 100 (Routine)
30 September 2026Moline Quad City Intl AP, USdaily rain (Provisional)41.1 mm (1.6 in)13.7 mm (0.5 in)31 years26 of 100 (Routine)
19 September 2026Moline Quad City Intl AP, USdaily rain (Provisional)43.9 mm (1.7 in)21.5 mm (0.8 in)40 years34 of 100 (Routine)
5 September 2026Moline Quad City Intl AP, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)40 years21 of 100 (Routine)
4 September 2026Moline Quad City Intl AP, USdaily high min (Provisional)23.9 C (75.0 F)0.6 C (1.1 F)8 years11 of 100 (Routine)
3 September 2026Moline Quad City Intl AP, USdaily high min (Provisional)23.9 C (75.0 F)1.7 C (3.1 F)61 years29 of 100 (Routine)
1 September 2026Moline Quad City Intl AP, USdaily high min (Tie, Provisional)23.3 C (73.9 F)tie52 years5 of 100 (Routine)
13 August 2026Moline Quad City Intl AP, USdaily rain35.3 mm (1.4 in)2.8 mm (0.11 in)48 years23 of 100 (Routine)
10 August 2026Moline Quad City Intl AP, USdaily high min (Tie)23.3 C (73.9 F)tie4 years2 of 100 (Routine)
31 July 2026Moline Quad City Intl AP, USdaily rain47.5 mm (1.9 in)18.5 mm (0.7 in)61 years37 of 100 (Notable)
29 June 2026Moline Quad City Intl AP, USdaily high min25.6 C (78.1 F)1.7 C (3.1 F)5 years13 of 100 (Routine)
21 June 2026Moline Quad City Intl AP, USdaily low max17.8 C (64.0 F)1.6 C (2.9 F)75 years33 of 100 (Routine)
17 June 2026Moline Quad City Intl AP, USdaily rain48.3 mm (1.9 in)6.4 mm (0.25 in)36 years22 of 100 (Routine)
9 June 2026Moline Quad City Intl AP, USdaily high min (Tie)22.2 C (72.0 F)tie21 years3 of 100 (Routine)
7 May 2026Moline Quad City Intl AP, USdaily low min (Tie)-1.7 C (28.9 F)tie36 years4 of 100 (Routine)
14 April 2026Moline Quad City Intl AP, USdaily high min19.4 C (66.9 F)2.2 C (4.0 F)1 year12 of 100 (Routine)
13 April 2026Moline Quad City Intl AP, USdaily high min16.7 C (62.1 F)0.6 C (1.1 F)65 years28 of 100 (Routine)
30 March 2026Moline Quad City Intl AP, USdaily high max29.4 C (84.9 F)1.6 C (2.9 F)40 years22 of 100 (Routine)
21 March 2026Moline Quad City Intl AP, USdaily high max30.0 C (86.0 F)2.8 C (5.0 F)13 years15 of 100 (Routine)

Climate Trend

82 complete years, 1944 to 2025
Annual mean temperature at Moline Quad City Intl AP as warming stripes, 1944 to 2025 One stripe for each of 82 complete years at Moline Quad City Intl AP, 1944 to 2025. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1979, at 8.4 C (47.2 F), and the warmest was 2024, at 12.4 C (54.3 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1944: 10.3 C, +0.1 C from the station mean1945: 9.4 C, -0.8 C from the station mean1946: 11.1 C, +0.9 C from the station mean1947: 10.0 C, -0.2 C from the station mean1948: 9.9 C, -0.3 C from the station mean1949: 10.6 C, +0.4 C from the station mean1950: 8.8 C, -1.4 C from the station mean1951: 8.7 C, -1.5 C from the station mean1952: 10.4 C, +0.2 C from the station mean1953: 10.9 C, +0.7 C from the station mean1954: 10.8 C, +0.6 C from the station mean1955: 10.3 C, +0.1 C from the station mean1956: 10.3 C, 0.0 C from the station mean1957: 9.9 C, -0.3 C from the station mean1958: 9.2 C, -1.0 C from the station mean1959: 9.9 C, -0.3 C from the station mean1960: 9.2 C, -1.0 C from the station mean1961: 9.9 C, -0.3 C from the station mean1962: 9.2 C, -1.0 C from the station mean1963: 9.4 C, -0.8 C from the station mean1964: 10.6 C, +0.4 C from the station mean1965: 9.9 C, -0.4 C from the station mean1966: 9.3 C, -0.9 C from the station mean1967: 9.1 C, -1.1 C from the station mean1968: 9.6 C, -0.6 C from the station mean1969: 9.3 C, -0.9 C from the station mean1970: 9.7 C, -0.5 C from the station mean1971: 10.2 C, 0.0 C from the station mean1972: 9.1 C, -1.1 C from the station mean1973: 10.8 C, +0.6 C from the station mean1974: 9.8 C, -0.4 C from the station mean1975: 10.2 C, 0.0 C from the station mean1976: 9.2 C, -1.0 C from the station mean1977: 10.0 C, -0.2 C from the station mean1978: 8.7 C, -1.5 C from the station mean1979: 8.4 C, -1.8 C from the station mean1980: 9.6 C, -0.6 C from the station mean1981: 9.9 C, -0.4 C from the station mean1982: 9.2 C, -1.0 C from the station mean1983: 10.4 C, +0.2 C from the station mean1984: 10.1 C, -0.1 C from the station mean1985: 9.2 C, -1.0 C from the station mean1986: 10.5 C, +0.3 C from the station mean1987: 11.6 C, +1.4 C from the station mean1988: 10.4 C, +0.1 C from the station mean1989: 9.3 C, -1.0 C from the station mean1990: 11.0 C, +0.7 C from the station mean1991: 10.9 C, +0.7 C from the station mean1992: 10.0 C, -0.2 C from the station mean1993: 9.7 C, -0.5 C from the station mean1994: 10.2 C, 0.0 C from the station mean1995: 9.9 C, -0.3 C from the station mean1996: 8.8 C, -1.4 C from the station mean1997: 9.6 C, -0.6 C from the station mean1998: 11.9 C, +1.6 C from the station mean1999: 10.9 C, +0.7 C from the station mean2000: 10.3 C, +0.1 C from the station mean2001: 10.9 C, +0.7 C from the station mean2002: 10.9 C, +0.7 C from the station mean2003: 10.1 C, -0.1 C from the station mean2004: 10.7 C, +0.5 C from the station mean2005: 11.5 C, +1.2 C from the station mean2006: 11.7 C, +1.5 C from the station mean2007: 11.2 C, +1.0 C from the station mean2008: 9.3 C, -0.9 C from the station mean2009: 9.6 C, -0.6 C from the station mean2010: 10.9 C, +0.7 C from the station mean2011: 10.7 C, +0.5 C from the station mean2012: 12.0 C, +1.8 C from the station mean2013: 9.5 C, -0.7 C from the station mean2014: 8.5 C, -1.7 C from the station mean2015: 10.8 C, +0.6 C from the station mean2016: 12.1 C, +1.9 C from the station mean2017: 11.6 C, +1.4 C from the station mean2018: 10.6 C, +0.3 C from the station mean2019: 10.5 C, +0.3 C from the station mean2020: 11.3 C, +1.0 C from the station mean2021: 11.5 C, +1.3 C from the station mean2022: 10.5 C, +0.3 C from the station mean2023: 12.3 C, +2.1 C from the station mean2024: 12.4 C, +2.2 C from the station mean2025: 11.0 C, +0.8 C from the station mean194419501960197019801990200020102020
One stripe for each of 82 complete years at Moline Quad City Intl AP, 1944 to 2025. Blue stripes are years cooler than the station's own mean of 10.2 C (50.4 F); red stripes are warmer. The coolest year was 1979, at 8.4 C (47.2 F), and the warmest was 2024, at 12.4 C (54.3 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Moline Quad City Intl AP as warming stripes, 1944 to 2025
YearAnnual mean temperatureDifference from the station mean
194410.3 C+0.05 C
19459.4 C-0.82 C
194611.1 C+0.88 C
194710.0 C-0.18 C
19489.9 C-0.34 C
194910.6 C+0.35 C
19508.8 C-1.41 C
19518.7 C-1.48 C
195210.4 C+0.20 C
195310.9 C+0.68 C
195410.8 C+0.55 C
195510.3 C+0.13 C
195610.3 C+0.04 C
19579.9 C-0.28 C
19589.2 C-1.00 C
19599.9 C-0.33 C
19609.2 C-1.03 C
19619.9 C-0.28 C
19629.2 C-0.97 C
19639.4 C-0.84 C
196410.6 C+0.35 C
19659.9 C-0.36 C
19669.3 C-0.88 C
19679.1 C-1.13 C
19689.6 C-0.63 C
19699.3 C-0.87 C
19709.7 C-0.47 C
197110.2 C-0.05 C
19729.1 C-1.12 C
197310.8 C+0.61 C
19749.8 C-0.37 C
197510.2 C-0.03 C
19769.2 C-0.99 C
197710.0 C-0.21 C
19788.7 C-1.54 C
19798.4 C-1.77 C
19809.6 C-0.63 C
19819.9 C-0.36 C
19829.2 C-0.98 C
198310.4 C+0.18 C
198410.1 C-0.08 C
19859.2 C-0.98 C
198610.5 C+0.29 C
198711.6 C+1.40 C
198810.4 C+0.14 C
19899.3 C-0.96 C
199011.0 C+0.74 C
199110.9 C+0.71 C
199210.0 C-0.17 C
19939.7 C-0.51 C
199410.2 C-0.04 C
19959.9 C-0.35 C
19968.8 C-1.45 C
19979.6 C-0.60 C
199811.9 C+1.64 C
199910.9 C+0.70 C
200010.3 C+0.11 C
200110.9 C+0.66 C
200210.9 C+0.71 C
200310.1 C-0.11 C
200410.7 C+0.49 C
200511.5 C+1.24 C
200611.7 C+1.48 C
200711.2 C+0.95 C
20089.3 C-0.90 C
20099.6 C-0.60 C
201010.9 C+0.69 C
201110.7 C+0.45 C
201212.0 C+1.76 C
20139.5 C-0.75 C
20148.5 C-1.69 C
201510.8 C+0.56 C
201612.1 C+1.88 C
201711.6 C+1.38 C
201810.6 C+0.34 C
201910.5 C+0.28 C
202011.3 C+1.04 C
202111.5 C+1.33 C
202210.5 C+0.31 C
202312.3 C+2.08 C
202412.4 C+2.16 C
202511.0 C+0.79 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1944 to 2025. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 82 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Moline Quad City Intl AP
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1944 to 202582Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.5) per decade1944 to 202582Rise
Mean daily minimum0.1 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1944 to 202582Rise

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

1943 to 2026
Yearly extremes at Moline Quad City Intl AP: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)198836.1 C (97.0 F)84
Coldest night (TNn)-36.0 C (-32.8 F)2019-25.5 C (-14.0 F)84
Wettest day (Rx1day)157.7 mm (6.2 in)196162.6 mm (2.5 in)84
Wettest five days (Rx5day)189.7 mm (7.5 in)196199.6 mm (3.9 in)84
Longest dry spell (CDD)54 days202622 days84

Hottest day (TXx)

Hottest day (TXx) at Moline Quad City Intl AP by year The hottest day of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 36.1 C (97.0 F). 32343638401960198020002020Record: 40.0 C (104.0 F) in 1988
The hottest day of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 40.0 C (104.0 F) in 1988, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Moline Quad City Intl AP by year
YearHottest day (TXx)
194335.6 C (96.1 F)
194436.7 C (98.1 F)
194538.9 C (102.0 F)
194636.1 C (97.0 F)
194737.8 C (100.0 F)
194836.7 C (98.1 F)
194936.7 C (98.1 F)
195034.4 C (93.9 F)
195136.1 C (97.0 F)
195236.1 C (97.0 F)
195337.8 C (100.0 F)
195436.7 C (98.1 F)
195537.8 C (100.0 F)
195639.4 C (102.9 F)
195735.6 C (96.1 F)
195835.6 C (96.1 F)
195935.6 C (96.1 F)
196036.7 C (98.1 F)
196135.6 C (96.1 F)
196235.6 C (96.1 F)
196337.2 C (99.0 F)
196436.1 C (97.0 F)
196536.7 C (98.1 F)
196637.8 C (100.0 F)
196734.4 C (93.9 F)
196835.6 C (96.1 F)
196934.4 C (93.9 F)
197036.7 C (98.1 F)
197137.2 C (99.0 F)
197236.7 C (98.1 F)
197336.1 C (97.0 F)
197436.7 C (98.1 F)
197536.7 C (98.1 F)
197637.2 C (99.0 F)
197736.7 C (98.1 F)
197835.0 C (95.0 F)
197934.4 C (93.9 F)
198036.1 C (97.0 F)
198135.6 C (96.1 F)
198235.6 C (96.1 F)
198339.4 C (102.9 F)
198437.2 C (99.0 F)
198536.1 C (97.0 F)
198635.0 C (95.0 F)
198739.4 C (102.9 F)
198840.0 C (104.0 F)
198937.8 C (100.0 F)
199037.2 C (99.0 F)
199137.2 C (99.0 F)
199233.9 C (93.0 F)
199334.4 C (93.9 F)
199436.7 C (98.1 F)
199537.8 C (100.0 F)
199635.6 C (96.1 F)
199736.7 C (98.1 F)
199836.7 C (98.1 F)
199937.2 C (99.0 F)
200036.1 C (97.0 F)
200135.6 C (96.1 F)
200235.0 C (95.0 F)
200336.1 C (97.0 F)
200434.4 C (93.9 F)
200539.4 C (102.9 F)
200637.8 C (100.0 F)
200734.4 C (93.9 F)
200833.3 C (91.9 F)
200935.0 C (95.0 F)
201035.0 C (95.0 F)
201137.8 C (100.0 F)
201240.0 C (104.0 F)
201337.2 C (99.0 F)
201434.4 C (93.9 F)
201534.4 C (93.9 F)
201635.6 C (96.1 F)
201735.0 C (95.0 F)
201837.2 C (99.0 F)
201936.1 C (97.0 F)
202035.6 C (96.1 F)
202135.6 C (96.1 F)
202236.7 C (98.1 F)
202337.8 C (100.0 F)
202436.7 C (98.1 F)
202535.6 C (96.1 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Moline Quad City Intl AP by year The coldest night of the year at Moline Quad City Intl AP, 1943 to 2026. The record is -36.0 C (-32.8 F) in 2019, marked on the chart; the median year is -25.5 C (-14.0 F). -40-35-30-25-20-151960198020002020Record: -36.0 C (-32.8 F) in 2019
The coldest night of the year at Moline Quad City Intl AP, 1943 to 2026. The record is -36.0 C (-32.8 F) in 2019, marked on the chart; the median year is -25.5 C (-14.0 F).
Coldest night (TNn) at Moline Quad City Intl AP by year
YearColdest night (TNn)
1943-20.0 C (-4.0 F)
1944-23.3 C (-9.9 F)
1945-26.1 C (-15.0 F)
1946-22.2 C (-8.0 F)
1947-27.2 C (-17.0 F)
1948-21.1 C (-6.0 F)
1949-26.1 C (-15.0 F)
1950-24.4 C (-11.9 F)
1951-28.3 C (-18.9 F)
1952-21.1 C (-6.0 F)
1953-21.1 C (-6.0 F)
1954-22.2 C (-8.0 F)
1955-26.7 C (-16.1 F)
1956-23.3 C (-9.9 F)
1957-28.3 C (-18.9 F)
1958-26.1 C (-15.0 F)
1959-26.1 C (-15.0 F)
1960-28.3 C (-18.9 F)
1961-23.3 C (-9.9 F)
1962-28.3 C (-18.9 F)
1963-32.2 C (-26.0 F)
1964-20.0 C (-4.0 F)
1965-24.4 C (-11.9 F)
1966-28.3 C (-18.9 F)
1967-27.2 C (-17.0 F)
1968-27.2 C (-17.0 F)
1969-23.3 C (-9.9 F)
1970-29.4 C (-20.9 F)
1971-28.3 C (-18.9 F)
1972-28.3 C (-18.9 F)
1973-26.1 C (-15.0 F)
1974-32.2 C (-26.0 F)
1975-22.2 C (-8.0 F)
1976-24.4 C (-11.9 F)
1977-30.0 C (-22.0 F)
1978-25.0 C (-13.0 F)
1979-32.8 C (-27.0 F)
1980-24.4 C (-11.9 F)
1981-24.4 C (-11.9 F)
1982-30.6 C (-23.1 F)
1983-28.3 C (-18.9 F)
1984-26.7 C (-16.1 F)
1985-29.4 C (-20.9 F)
1986-23.9 C (-11.0 F)
1987-19.4 C (-2.9 F)
1988-25.6 C (-14.1 F)
1989-31.1 C (-24.0 F)
1990-20.6 C (-5.1 F)
1991-22.8 C (-9.0 F)
1992-22.8 C (-9.0 F)
1993-22.8 C (-9.0 F)
1994-30.6 C (-23.1 F)
1995-20.6 C (-5.1 F)
1996-33.3 C (-27.9 F)
1997-26.1 C (-15.0 F)
1998-20.0 C (-4.0 F)
1999-32.2 C (-26.0 F)
2000-27.8 C (-18.0 F)
2001-20.6 C (-5.1 F)
2002-22.8 C (-9.0 F)
2003-22.2 C (-8.0 F)
2004-24.4 C (-11.9 F)
2005-23.9 C (-11.0 F)
2006-22.2 C (-8.0 F)
2007-22.8 C (-9.0 F)
2008-26.1 C (-15.0 F)
2009-32.8 C (-27.0 F)
2010-26.1 C (-15.0 F)
2011-27.2 C (-17.0 F)
2012-20.0 C (-4.0 F)
2013-24.9 C (-12.8 F)
2014-29.9 C (-21.8 F)
2015-27.7 C (-17.9 F)
2016-25.5 C (-13.9 F)
2017-23.8 C (-10.8 F)
2018-28.2 C (-18.8 F)
2019-36.0 C (-32.8 F)
2020-22.7 C (-8.9 F)
2021-26.0 C (-14.8 F)
2022-23.8 C (-10.8 F)
2023-17.7 C (0.1 F)
2024-28.2 C (-18.8 F)
2025-23.8 C (-10.8 F)
2026-24.4 C (-11.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Moline Quad City Intl AP by year The wettest day of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 157.7 mm (6.2 in) in 1961, marked on the chart; the median year is 62.6 mm (2.5 in). 0501001502001960198020002020Record: 157.7 mm (6.2 in) in 1961
The wettest day of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 157.7 mm (6.2 in) in 1961, marked on the chart; the median year is 62.6 mm (2.5 in).
Wettest day (Rx1day) at Moline Quad City Intl AP by year
YearWettest day (Rx1day)
194342.2 mm (1.7 in)
194450.5 mm (2.0 in)
194553.1 mm (2.1 in)
194644.5 mm (1.8 in)
194784.3 mm (3.3 in)
194887.6 mm (3.4 in)
1949111.5 mm (4.4 in)
195055.4 mm (2.2 in)
1951116.8 mm (4.6 in)
195264.8 mm (2.6 in)
195358.2 mm (2.3 in)
1954121.2 mm (4.8 in)
195544.2 mm (1.7 in)
195656.6 mm (2.2 in)
195753.8 mm (2.1 in)
195854.1 mm (2.1 in)
195963.0 mm (2.5 in)
196048.8 mm (1.9 in)
1961157.7 mm (6.2 in)
196270.1 mm (2.8 in)
196372.1 mm (2.8 in)
196443.4 mm (1.7 in)
196580.5 mm (3.2 in)
196679.5 mm (3.1 in)
1967117.1 mm (4.6 in)
196841.9 mm (1.6 in)
196997.8 mm (3.9 in)
197082.0 mm (3.2 in)
1971129.0 mm (5.1 in)
197284.8 mm (3.3 in)
1973108.2 mm (4.3 in)
197468.3 mm (2.7 in)
197541.9 mm (1.6 in)
197645.5 mm (1.8 in)
197777.0 mm (3.0 in)
197861.0 mm (2.4 in)
197960.7 mm (2.4 in)
198071.1 mm (2.8 in)
198146.0 mm (1.8 in)
198290.2 mm (3.6 in)
198394.2 mm (3.7 in)
198444.5 mm (1.8 in)
198559.7 mm (2.4 in)
198685.9 mm (3.4 in)
198790.2 mm (3.6 in)
198845.0 mm (1.8 in)
198961.0 mm (2.4 in)
199078.7 mm (3.1 in)
199151.1 mm (2.0 in)
199261.7 mm (2.4 in)
199392.7 mm (3.6 in)
199453.8 mm (2.1 in)
199574.2 mm (2.9 in)
199660.7 mm (2.4 in)
199757.7 mm (2.3 in)
1998105.2 mm (4.1 in)
199955.4 mm (2.2 in)
200052.3 mm (2.1 in)
200154.1 mm (2.1 in)
200263.5 mm (2.5 in)
200342.2 mm (1.7 in)
200462.7 mm (2.5 in)
200525.4 mm (1.0 in)
200645.2 mm (1.8 in)
200790.4 mm (3.6 in)
2008108.2 mm (4.3 in)
200962.5 mm (2.5 in)
201056.6 mm (2.2 in)
201143.9 mm (1.7 in)
201243.4 mm (1.7 in)
2013113.3 mm (4.5 in)
2014129.5 mm (5.1 in)
201580.5 mm (3.2 in)
201675.7 mm (3.0 in)
201785.9 mm (3.4 in)
201884.1 mm (3.3 in)
201964.0 mm (2.5 in)
202051.1 mm (2.0 in)
202165.0 mm (2.6 in)
202252.8 mm (2.1 in)
202341.4 mm (1.6 in)
202451.3 mm (2.0 in)
202588.9 mm (3.5 in)
202648.3 mm (1.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Moline Quad City Intl AP by year The wettest five days of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 189.7 mm (7.5 in) in 1961, marked on the chart; the median year is 99.6 mm (3.9 in). 0501001502001960198020002020Record: 189.7 mm (7.5 in) in 1961
The wettest five days of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 189.7 mm (7.5 in) in 1961, marked on the chart; the median year is 99.6 mm (3.9 in).
Wettest five days (Rx5day) at Moline Quad City Intl AP by year
YearWettest five days (Rx5day)
194364.0 mm (2.5 in)
194489.2 mm (3.5 in)
194576.4 mm (3.0 in)
194675.8 mm (3.0 in)
1947115.5 mm (4.5 in)
1948125.7 mm (4.9 in)
1949129.0 mm (5.1 in)
195090.9 mm (3.6 in)
1951148.0 mm (5.8 in)
195264.8 mm (2.6 in)
1953101.3 mm (4.0 in)
1954131.4 mm (5.2 in)
195574.7 mm (2.9 in)
195659.5 mm (2.3 in)
195760.2 mm (2.4 in)
195869.4 mm (2.7 in)
1959103.6 mm (4.1 in)
196077.5 mm (3.1 in)
1961189.7 mm (7.5 in)
1962121.8 mm (4.8 in)
1963144.3 mm (5.7 in)
196482.6 mm (3.3 in)
1965117.1 mm (4.6 in)
1966116.9 mm (4.6 in)
1967149.1 mm (5.9 in)
196867.8 mm (2.7 in)
1969124.5 mm (4.9 in)
1970154.4 mm (6.1 in)
1971183.3 mm (7.2 in)
1972120.2 mm (4.7 in)
1973170.5 mm (6.7 in)
1974133.9 mm (5.3 in)
197549.5 mm (1.9 in)
197680.0 mm (3.1 in)
197782.4 mm (3.2 in)
197892.8 mm (3.7 in)
1979129.8 mm (5.1 in)
1980101.6 mm (4.0 in)
198187.9 mm (3.5 in)
1982115.9 mm (4.6 in)
1983150.9 mm (5.9 in)
198480.8 mm (3.2 in)
198591.5 mm (3.6 in)
1986137.7 mm (5.4 in)
1987177.1 mm (7.0 in)
198853.1 mm (2.1 in)
1989100.3 mm (3.9 in)
1990121.3 mm (4.8 in)
199167.8 mm (2.7 in)
1992125.1 mm (4.9 in)
1993141.0 mm (5.6 in)
199465.5 mm (2.6 in)
199598.8 mm (3.9 in)
1996106.0 mm (4.2 in)
199771.0 mm (2.8 in)
1998117.6 mm (4.6 in)
1999103.2 mm (4.1 in)
200085.9 mm (3.4 in)
200184.4 mm (3.3 in)
200278.0 mm (3.1 in)
200381.8 mm (3.2 in)
200475.0 mm (3.0 in)
200540.9 mm (1.6 in)
200675.7 mm (3.0 in)
200795.1 mm (3.7 in)
2008180.2 mm (7.1 in)
200997.8 mm (3.9 in)
201090.4 mm (3.6 in)
201190.9 mm (3.6 in)
201286.3 mm (3.4 in)
2013125.7 mm (4.9 in)
2014148.1 mm (5.8 in)
2015157.7 mm (6.2 in)
201684.1 mm (3.3 in)
2017136.7 mm (5.4 in)
2018106.4 mm (4.2 in)
2019113.6 mm (4.5 in)
2020116.1 mm (4.6 in)
202190.8 mm (3.6 in)
202252.8 mm (2.1 in)
202353.6 mm (2.1 in)
202470.4 mm (2.8 in)
2025118.4 mm (4.7 in)
2026109.6 mm (4.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Moline Quad City Intl AP by year The longest dry spell of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 54 days in 2026, marked on the chart; the median year is 22 days. 02040601960198020002020Record: 54 days in 2026
The longest dry spell of the year at Moline Quad City Intl AP, 1943 to 2026. The record is 54 days in 2026, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Moline Quad City Intl AP by year
YearLongest dry spell (CDD)
194326 days
194427 days
194516 days
194625 days
194728 days
194832 days
194921 days
195018 days
195112 days
195245 days
195323 days
195423 days
195523 days
195636 days
195729 days
195826 days
195922 days
196021 days
196114 days
196217 days
196316 days
196436 days
196523 days
196626 days
196721 days
196816 days
196921 days
197016 days
197130 days
197216 days
197319 days
197414 days
197522 days
197626 days
197718 days
197821 days
197935 days
198022 days
198122 days
198217 days
198327 days
198416 days
198510 days
198622 days
198722 days
198838 days
198928 days
199016 days
199124 days
199217 days
199326 days
199422 days
199528 days
199622 days
199714 days
199823 days
199937 days
200018 days
200114 days
200227 days
200320 days
200417 days
200521 days
200618 days
200730 days
200814 days
200923 days
201027 days
201117 days
201216 days
201336 days
201419 days
201531 days
201619 days
201735 days
201817 days
201918 days
202021 days
202127 days
202216 days
202327 days
202422 days
202515 days
202654 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

82 years with a frost

Across 82 years with a frost, the median last spring frost at Moline Quad City Intl AP falls on 24 April and the median first autumn frost on 13 October, which leaves a median of 172 days between them.

In 1996 to 2025 the median growing season was 174 days. The two periods have the same number of growing days.

Fitted over all years, the growing season changes by +0.4 days per decade at this station.

Frost dates and growing season at Moline Quad City Intl AP
MeasureMedian, all yearsEarliest period (1944 to 1973)Recent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost24 April23 April26 April3 days later+0.3 days per decade
First autumn frost13 October12 October18 October6 days later+0.6 days per decade
Growing days172 days174 days174 daysno change+0.4 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

82 years, 1944 to 2025

A day with at least 65.4 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 160.8 mm (6.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Moline Quad City Intl AP: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years65.4 mm (2.6 in)
5 years88.1 mm (3.5 in)
10 years104.2 mm (4.1 in)
25 years125.9 mm (5.0 in)
50 years143.0 mm (5.6 in)
100 years160.8 mm (6.3 in)Longer than the 82 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, 82 years of values from 1944 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: 157.7 mm (6.2 in) in 1961; 129.5 mm (5.1 in) in 2014; 129.0 mm (5.1 in) in 1971.

Station Changes

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

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Moline Quad City Intl AP had a mean temperature of 11.0 C (51.8 F) and 933.6 mm (36.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Rantoul (United States, 235 km away), Lincoln (United States, 175 km away) and Farmer City 3W (United States, 202 km away).

Climate twins of Moline Quad City Intl AP: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
RantoulUnited States235 km (146 mi)10.7 C (51.2 F)920.8 mm (36.3 in)0.61
LincolnUnited States175 km (109 mi)11.1 C (52.0 F)951.0 mm (37.4 in)0.66
Farmer City 3WUnited States202 km (126 mi)10.8 C (51.5 F)943.8 mm (37.2 in)0.66

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 Moline Quad City Intl AP standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Moline Quad City Intl AP 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).