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Monroe Wwtp Weather Records (USC00475573)

Record envelope, standing records and threshold days for Monroe Wwtp (USC00475573), Wisconsin, United States, with 79 years of record.

Key Facts for Monroe Wwtp

  • Monroe Wwtp (USC00475573) is a weather station in Wisconsin, United States at 42.60 latitude and -89.67 longitude, 302 m (991 ft) above sea level.
  • The station reports from 1948 to 2026, 79 years of record.
  • 1,464 records set at Monroe Wwtp still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Monroe Wwtp set a daily record precipitation of 54.1 mm (2.1 in) on 19 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Wisconsin, United States, 42.60 latitude, -89.67 longitude.
  • Elevation: 302 m (991 ft).
  • Period of record: 1948 to 2026, 79 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

25 days at or beyond a record
Daily record high and record low at Monroe Wwtp, with 2026 drawn through them The band shows the record high and record low for each calendar day at Monroe Wwtp. The lines show the 2026 daily maximum and minimum. 25 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 Monroe Wwtp. The lines show the 2026 daily maximum and minimum. 25 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Monroe Wwtp, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.4 C (57.9 F)-33.3 C (-27.9 F)13.9 C (57.0 F)-27.8 C (-18.0 F)
Feb21.7 C (71.1 F)-33.3 C (-27.9 F)17.2 C (63.0 F)-17.2 C (1.0 F)
Mar27.8 C (82.0 F)-25.6 C (-14.1 F)26.1 C (79.0 F)-15.6 C (3.9 F)
Apr30.6 C (87.1 F)-11.7 C (10.9 F)26.7 C (80.1 F)-5.0 C (23.0 F)
May35.6 C (96.1 F)-4.4 C (24.1 F)31.7 C (89.1 F)-1.7 C (28.9 F)
Jun36.1 C (97.0 F)4.4 C (39.9 F)31.7 C (89.1 F)9.4 C (48.9 F)
Jul40.0 C (104.0 F)3.9 C (39.0 F)34.4 C (93.9 F)10.0 C (50.0 F)
Aug36.1 C (97.0 F)5.6 C (42.1 F)29.4 C (84.9 F)10.6 C (51.1 F)
Sep35.0 C (95.0 F)-1.7 C (28.9 F)32.8 C (91.0 F)7.8 C (46.0 F)
Oct33.3 C (91.9 F)-5.6 C (21.9 F)28.3 C (82.9 F)5.6 C (42.1 F)
Nov23.3 C (73.9 F)-17.8 C (0.0 F)n/an/a
Dec20.6 C (69.1 F)-27.2 C (-17.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Monroe Wwtp by the year they were set 1,464 records at Monroe Wwtp still stand. 2012 holds the most, with 109. 0501001501966: 81968: 21972: 112001: 192002: 622003: 602004: 612005: 632006: 562007: 602008: 562009: 562010: 622011: 532012: 1092013: 712014: 742015: 212016: 192017: 782018: 642019: 542020: 462021: 612022: 462023: 472024: 512025: 502026: 441966200120042007201020132016201920222025
1,464 records at Monroe Wwtp still stand. 2012 holds the most, with 109.
Standing records at Monroe Wwtp by the year they were set
Year setStanding records
19668
19682
197211
200119
200262
200360
200461
200563
200656
200760
200856
200956
201062
201153
2012109
201371
201474
201521
201619
201778
201864
201954
202046
202161
202246
202347
202451
202550
202644

All-Time Record Progression

11 new records
When Monroe Wwtp set new all-time records 11 all-time records were set at Monroe Wwtp between 13 January 1979 and 18 July 1996. Each dot is a new record. Record snow depthRecord daily precipitationRecord daily snowfall13 January 1979: Record snow depth 61.0 cm (24.0 in)14 January 1979: Record snow depth 71.1 cm (28.0 in)16 January 1979: Record snow depth 76.2 cm (30.0 in)19 January 1979: Record snow depth 78.7 cm (31.0 in)24 January 1979: Record snow depth 83.8 cm (33.0 in)11 February 1979: Record snow depth 86.4 cm (34.0 in)12 February 1979: Record snow depth 96.5 cm (38.0 in)21 February 1979: Record snow depth 101.6 cm (40.0 in)29 June 1990: Record daily precipitation 147.8 mm (5.8 in)7 December 1994: Record daily snowfall 30.5 cm (12.0 in)18 July 1996: Record daily precipitation 256.5 mm (10.1 in)1980198519901995
11 all-time records were set at Monroe Wwtp between 13 January 1979 and 18 July 1996. Each dot is a new record.
When Monroe Wwtp set new all-time records
DateKindDetail
1979-01-13Record snow depthRecord snow depth 61.0 cm (24.0 in)
1979-01-14Record snow depthRecord snow depth 71.1 cm (28.0 in)
1979-01-16Record snow depthRecord snow depth 76.2 cm (30.0 in)
1979-01-19Record snow depthRecord snow depth 78.7 cm (31.0 in)
1979-01-24Record snow depthRecord snow depth 83.8 cm (33.0 in)
1979-02-11Record snow depthRecord snow depth 86.4 cm (34.0 in)
1979-02-12Record snow depthRecord snow depth 96.5 cm (38.0 in)
1979-02-21Record snow depthRecord snow depth 101.6 cm (40.0 in)
1990-06-29Record daily precipitationRecord daily precipitation 147.8 mm (5.8 in)
1994-12-07Record daily snowfallRecord daily snowfall 30.5 cm (12.0 in)
1996-07-18Record daily precipitationRecord daily precipitation 256.5 mm (10.1 in)

Wettest Day of Each Month

Jul: 256.5 mm (10.1 in)
Record daily precipitation for each month at Monroe Wwtp The wettest day on record for each calendar month at Monroe Wwtp. The most was 256.5 mm (10.1 in) on 18 July 1996. 0100200300 Jan: 45.5 mm (1.8 in), 13 January 1960 Jan Feb: 47.8 mm (1.9 in), 9 February 2001 Feb Mar: 56.1 mm (2.2 in), 31 March 1998 Mar Apr: 69.1 mm (2.7 in), 3 April 2024 Apr May: 72.6 mm (2.9 in), 22 May 2004 May Jun: 147.8 mm (5.8 in), 29 June 1990 Jun Jul: 256.5 mm (10.1 in), 18 July 1996 Jul Aug: 96.0 mm (3.8 in), 20 August 1994 Aug Sep: 100.3 mm (3.9 in), 10 September 1986 Sep Oct: 78.2 mm (3.1 in), 31 October 1960 Oct Nov: 67.3 mm (2.6 in), 4 November 2003 Nov Dec: 47.5 mm (1.9 in), 15 December 1971 Dec
The wettest day on record for each calendar month at Monroe Wwtp. The most was 256.5 mm (10.1 in) on 18 July 1996.
Record daily precipitation for each month at Monroe Wwtp
MonthRecord daily precipitation (mm)Date
Jan45.5 mm (1.8 in)13 January 1960
Feb47.8 mm (1.9 in)9 February 2001
Mar56.1 mm (2.2 in)31 March 1998
Apr69.1 mm (2.7 in)3 April 2024
May72.6 mm (2.9 in)22 May 2004
Jun147.8 mm (5.8 in)29 June 1990
Jul256.5 mm (10.1 in)18 July 1996
Aug96.0 mm (3.8 in)20 August 1994
Sep100.3 mm (3.9 in)10 September 1986
Oct78.2 mm (3.1 in)31 October 1960
Nov67.3 mm (2.6 in)4 November 2003
Dec47.5 mm (1.9 in)15 December 1971

Period of Record Coverage

1966 to 2026
Days with data per year at Monroe Wwtp 29 years of record at Monroe Wwtp, 1966 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1966, 1968, 1972, 2001, 2015, 2016, 2026. 1966: 31 of 365 days1968: 1 of 366 days1972: 31 of 366 days2001: 121 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 364 of 366 days2005: 353 of 365 days2006: 345 of 365 days2007: 341 of 365 days2008: 360 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 344 of 365 days2015: 124 of 365 days2016: 123 of 366 days2017: 364 of 365 days2018: 363 of 365 days2019: 363 of 365 days2020: 365 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 363 of 365 days2024: 361 of 366 days2025: 365 of 365 days2026: 281 of 365 days20052010201520202025
29 years of record at Monroe Wwtp, 1966 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1966, 1968, 1972, 2001, 2015, 2016, 2026.
Days with data per year at Monroe Wwtp
YearDays with dataShare of yearComplete
1966318%No
196810%No
1972318%No
200112133%No
2002364100%Yes
2003365100%Yes
200436499%Yes
200535397%Yes
200634595%Yes
200734193%Yes
200836098%Yes
2009364100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
201434494%Yes
201512434%No
201612334%No
2017364100%Yes
201836399%Yes
201936399%Yes
2020365100%Yes
2021364100%Yes
2022365100%Yes
202336399%Yes
202436199%Yes
2025365100%Yes
202628177%No

Latest Records

20
Latest records at Monroe Wwtp
DateStationRecordValueBeat old record byOld record stoodSignificance
19 September 2026Monroe Wwtp, USdaily rain (Provisional)54.1 mm (2.1 in)19.8 mm (0.8 in)24 years27 of 100 (Routine)
1 August 2026Monroe Wwtp, USdaily rain62.2 mm (2.4 in)38.6 mm (1.5 in)71 years52 of 100 (Notable)
16 April 2026Monroe Wwtp, USdaily rain33.3 mm (1.3 in)8.4 mm (0.33 in)32 years24 of 100 (Routine)
15 April 2026Monroe Wwtp, USdaily rain43.2 mm (1.7 in)9.7 mm (0.38 in)32 years25 of 100 (Routine)
16 March 2026Monroe Wwtp, USdaily rain33.3 mm (1.3 in)20.3 mm (0.8 in)44 years44 of 100 (Notable)
16 March 2026Monroe Wwtp, USdaily snowfall15.2 cm (6.0 in)5.0 cm (2.0 in)65 years36 of 100 (Notable)
30 November 2025Monroe Wwtp, USmonthly snowfall26.7 cm (10.5 in)6.4 cm (2.5 in)55 years51 of 100 (Notable)
30 November 2025Monroe Wwtp, USmonthly snow depth25.4 cm (10.0 in)2.5 cm (1.0 in)48 years36 of 100 (Notable)
10 November 2025Monroe Wwtp, USdaily snow depth2.5 cm (1.0 in)2.5 cm (1.0 in)76 years20 of 100 (Routine)
9 November 2025Monroe Wwtp, USdaily snowfall3.3 cm (1.3 in)1.3 cm (0.5 in)7 years12 of 100 (Routine)
9 November 2025Monroe Wwtp, USdaily snow depth (Tie)2.5 cm (1.0 in)tie74 years7 of 100 (Routine)
12 July 2025Monroe Wwtp, USdaily rain31.2 mm (1.2 in)5.3 mm (0.21 in)60 years28 of 100 (Routine)
25 June 2025Monroe Wwtp, USdaily rain66.8 mm (2.6 in)27.9 mm (1.1 in)12 years26 of 100 (Routine)
13 February 2025Monroe Wwtp, USdaily snowfall15.2 cm (6.0 in)3.8 cm (1.5 in)31 years25 of 100 (Routine)
19 November 2024Monroe Wwtp, USdaily rain23.6 mm (0.9 in)5.1 mm (0.20 in)41 years20 of 100 (Routine)
30 August 2024Monroe Wwtp, USdaily rain37.3 mm (1.5 in)4.0 mm (0.16 in)67 years29 of 100 (Routine)
23 June 2024Monroe Wwtp, USdaily rain60.5 mm (2.4 in)8.2 mm (0.32 in)55 years27 of 100 (Routine)
25 May 2024Monroe Wwtp, USdaily rain34.5 mm (1.4 in)0.2 mm (0.01 in)74 years29 of 100 (Routine)
3 April 2024Monroe Wwtp, USdaily snowfall17.8 cm (7.0 in)6.4 cm (2.5 in)49 years36 of 100 (Notable)
3 April 2024Monroe Wwtp, USmonthly rain69.1 mm (2.7 in)7.4 mm (0.29 in)10 years27 of 100 (Routine)

Climate Trend

20 complete years, 2002 to 2025
Annual mean temperature at Monroe Wwtp as warming stripes, 2002 to 2025 One stripe for each of 20 complete years at Monroe Wwtp, 2002 to 2025. Blue stripes are years cooler than the station's own mean of 8.9 C (48.1 F); red stripes are warmer. The coolest year was 2013, at 6.9 C (44.4 F), and the warmest was 2012, at 10.7 C (51.2 F). The strongest colour marks a difference of 2.1 C (3.8 F). 2002: 9.2 C, +0.3 C from the station mean2003: 8.2 C, -0.7 C from the station mean2004: 8.7 C, -0.2 C from the station mean2005: 9.0 C, +0.1 C from the station mean2006: 9.7 C, +0.7 C from the station mean2008: 7.5 C, -1.4 C from the station mean2009: 8.2 C, -0.7 C from the station mean2010: 9.8 C, +0.9 C from the station mean2011: 9.3 C, +0.4 C from the station mean2012: 10.7 C, +1.8 C from the station mean2013: 6.9 C, -2.0 C from the station mean2017: 9.4 C, +0.5 C from the station mean2018: 8.4 C, -0.5 C from the station mean2019: 7.8 C, -1.1 C from the station mean2020: 9.0 C, +0.1 C from the station mean2021: 9.5 C, +0.5 C from the station mean2022: 7.9 C, -1.0 C from the station mean2023: 9.8 C, +0.8 C from the station mean2024: 10.4 C, +1.5 C from the station mean2025: 9.1 C, +0.2 C from the station mean200220042006200820102012201420162018202020222024
One stripe for each of 20 complete years at Monroe Wwtp, 2002 to 2025. Blue stripes are years cooler than the station's own mean of 8.9 C (48.1 F); red stripes are warmer. The coolest year was 2013, at 6.9 C (44.4 F), and the warmest was 2012, at 10.7 C (51.2 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Monroe Wwtp as warming stripes, 2002 to 2025
YearAnnual mean temperatureDifference from the station mean
20029.2 C+0.26 C
20038.2 C-0.70 C
20048.7 C-0.24 C
20059.0 C+0.05 C
20069.7 C+0.74 C
20087.5 C-1.40 C
20098.2 C-0.69 C
20109.8 C+0.85 C
20119.3 C+0.42 C
201210.7 C+1.75 C
20136.9 C-2.01 C
20179.4 C+0.47 C
20188.4 C-0.54 C
20197.8 C-1.11 C
20209.0 C+0.08 C
20219.5 C+0.54 C
20227.9 C-0.99 C
20239.8 C+0.83 C
202410.4 C+1.49 C
20259.1 C+0.19 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1948 to 2026
Yearly extremes at Monroe Wwtp: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)201234.4 C (93.9 F)29
Coldest night (TNn)-33.3 C (-27.9 F)2009-26.1 C (-15.0 F)29
Wettest day (Rx1day)256.5 mm (10.1 in)199665.5 mm (2.6 in)79
Wettest five days (Rx5day)261.1 mm (10.3 in)1996102.7 mm (4.0 in)79
Longest dry spell (CDD)55 days195222 days79

Hottest day (TXx)

Hottest day (TXx) at Monroe Wwtp by year The hottest day of the year at Monroe Wwtp, 1948 to 2026. The record is 40.0 C (104.0 F) in 2012, marked on the chart; the median year is 34.4 C (93.9 F). -20020401960198020002020Record: 40.0 C (104.0 F) in 2012
The hottest day of the year at Monroe Wwtp, 1948 to 2026. The record is 40.0 C (104.0 F) in 2012, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Monroe Wwtp by year
YearHottest day (TXx)
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
196632.2 C (90.0 F)
1967n/a
1968-20.0 C (-4.0 F)
1969n/a
1970n/a
1971n/a
197236.7 C (98.1 F)
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
200130.0 C (86.0 F)
200236.1 C (97.0 F)
200335.6 C (96.1 F)
200433.3 C (91.9 F)
200536.1 C (97.0 F)
200635.6 C (96.1 F)
200735.6 C (96.1 F)
200832.2 C (90.0 F)
200935.6 C (96.1 F)
201035.6 C (96.1 F)
201136.7 C (98.1 F)
201240.0 C (104.0 F)
201333.9 C (93.0 F)
201431.7 C (89.1 F)
201531.7 C (89.1 F)
201631.7 C (89.1 F)
201734.4 C (93.9 F)
201835.0 C (95.0 F)
201932.8 C (91.0 F)
202032.8 C (91.0 F)
202134.4 C (93.9 F)
202234.4 C (93.9 F)
202335.6 C (96.1 F)
202436.1 C (97.0 F)
202533.9 C (93.0 F)
202634.4 C (93.9 F)

Coldest night (TNn)

Coldest night (TNn) at Monroe Wwtp by year The coldest night of the year at Monroe Wwtp, 1948 to 2026. The record is -33.3 C (-27.9 F) in 2009, marked on the chart; the median year is -26.1 C (-15.0 F). -40-200201960198020002020Record: -33.3 C (-27.9 F) in 2009
The coldest night of the year at Monroe Wwtp, 1948 to 2026. The record is -33.3 C (-27.9 F) in 2009, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Monroe Wwtp by year
YearColdest night (TNn)
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
19668.3 C (46.9 F)
1967n/a
1968-27.2 C (-17.0 F)
1969n/a
1970n/a
1971n/a
19723.9 C (39.0 F)
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001-16.1 C (3.0 F)
2002-25.6 C (-14.1 F)
2003-23.3 C (-9.9 F)
2004-25.6 C (-14.1 F)
2005-25.0 C (-13.0 F)
2006-27.8 C (-18.0 F)
2007-30.0 C (-22.0 F)
2008-26.7 C (-16.1 F)
2009-33.3 C (-27.9 F)
2010-23.3 C (-9.9 F)
2011-28.9 C (-20.0 F)
2012-21.7 C (-7.1 F)
2013-25.6 C (-14.1 F)
2014-30.0 C (-22.0 F)
2015-24.4 C (-11.9 F)
2016-24.4 C (-11.9 F)
2017-23.9 C (-11.0 F)
2018-26.7 C (-16.1 F)
2019-33.3 C (-27.9 F)
2020-26.7 C (-16.1 F)
2021-27.2 C (-17.0 F)
2022-28.3 C (-18.9 F)
2023-25.0 C (-13.0 F)
2024-26.7 C (-16.1 F)
2025-26.1 C (-15.0 F)
2026-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Monroe Wwtp by year The wettest day of the year at Monroe Wwtp, 1948 to 2026. The record is 256.5 mm (10.1 in) in 1996, marked on the chart; the median year is 65.5 mm (2.6 in). 01002003001960198020002020Record: 256.5 mm (10.1 in) in 1996
The wettest day of the year at Monroe Wwtp, 1948 to 2026. The record is 256.5 mm (10.1 in) in 1996, marked on the chart; the median year is 65.5 mm (2.6 in).
Wettest day (Rx1day) at Monroe Wwtp by year
YearWettest day (Rx1day)
194864.5 mm (2.5 in)
194949.5 mm (1.9 in)
195069.3 mm (2.7 in)
1951113.8 mm (4.5 in)
195265.3 mm (2.6 in)
195335.8 mm (1.4 in)
195457.7 mm (2.3 in)
195558.7 mm (2.3 in)
195684.1 mm (3.3 in)
195774.2 mm (2.9 in)
195846.2 mm (1.8 in)
195973.7 mm (2.9 in)
196078.2 mm (3.1 in)
196180.5 mm (3.2 in)
196236.8 mm (1.4 in)
196338.1 mm (1.5 in)
196485.1 mm (3.4 in)
196558.7 mm (2.3 in)
196685.3 mm (3.4 in)
196789.4 mm (3.5 in)
196891.4 mm (3.6 in)
196986.9 mm (3.4 in)
197063.2 mm (2.5 in)
197154.6 mm (2.1 in)
197288.9 mm (3.5 in)
197348.8 mm (1.9 in)
197450.0 mm (2.0 in)
197548.5 mm (1.9 in)
197651.3 mm (2.0 in)
197784.6 mm (3.3 in)
197872.4 mm (2.9 in)
197966.3 mm (2.6 in)
198039.4 mm (1.6 in)
198152.1 mm (2.1 in)
198250.5 mm (2.0 in)
198344.7 mm (1.8 in)
198472.1 mm (2.8 in)
198549.0 mm (1.9 in)
1986100.3 mm (3.9 in)
198763.8 mm (2.5 in)
198837.1 mm (1.5 in)
198994.7 mm (3.7 in)
1990147.8 mm (5.8 in)
199153.3 mm (2.1 in)
199241.1 mm (1.6 in)
1993101.1 mm (4.0 in)
199496.0 mm (3.8 in)
199545.2 mm (1.8 in)
1996256.5 mm (10.1 in)
199765.5 mm (2.6 in)
199864.0 mm (2.5 in)
199947.5 mm (1.9 in)
2000134.6 mm (5.3 in)
200174.9 mm (2.9 in)
200291.9 mm (3.6 in)
200367.3 mm (2.6 in)
200472.6 mm (2.9 in)
200535.8 mm (1.4 in)
200654.6 mm (2.1 in)
200769.3 mm (2.7 in)
200879.2 mm (3.1 in)
200964.3 mm (2.5 in)
201065.3 mm (2.6 in)
201138.1 mm (1.5 in)
201224.4 mm (1.0 in)
201385.3 mm (3.4 in)
201480.8 mm (3.2 in)
201583.1 mm (3.3 in)
201664.0 mm (2.5 in)
2017104.4 mm (4.1 in)
201875.7 mm (3.0 in)
201959.7 mm (2.4 in)
202080.0 mm (3.1 in)
202154.1 mm (2.1 in)
202273.7 mm (2.9 in)
202335.3 mm (1.4 in)
202469.1 mm (2.7 in)
202566.8 mm (2.6 in)
202663.5 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Monroe Wwtp by year The wettest five days of the year at Monroe Wwtp, 1948 to 2026. The record is 261.1 mm (10.3 in) in 1996, marked on the chart; the median year is 102.7 mm (4.0 in). 01002003001960198020002020Record: 261.1 mm (10.3 in) in 1996
The wettest five days of the year at Monroe Wwtp, 1948 to 2026. The record is 261.1 mm (10.3 in) in 1996, marked on the chart; the median year is 102.7 mm (4.0 in).
Wettest five days (Rx5day) at Monroe Wwtp by year
YearWettest five days (Rx5day)
194874.2 mm (2.9 in)
194976.0 mm (3.0 in)
1950127.2 mm (5.0 in)
1951131.6 mm (5.2 in)
195284.6 mm (3.3 in)
195365.0 mm (2.6 in)
195494.8 mm (3.7 in)
195566.6 mm (2.6 in)
195694.8 mm (3.7 in)
195778.8 mm (3.1 in)
195875.2 mm (3.0 in)
1959106.2 mm (4.2 in)
1960103.9 mm (4.1 in)
1961160.0 mm (6.3 in)
196269.6 mm (2.7 in)
196360.4 mm (2.4 in)
1964111.8 mm (4.4 in)
1965124.3 mm (4.9 in)
1966118.8 mm (4.7 in)
196791.2 mm (3.6 in)
196898.5 mm (3.9 in)
1969175.0 mm (6.9 in)
1970105.7 mm (4.2 in)
197180.3 mm (3.2 in)
1972105.7 mm (4.2 in)
197388.9 mm (3.5 in)
197463.2 mm (2.5 in)
197556.9 mm (2.2 in)
197681.6 mm (3.2 in)
1977141.0 mm (5.6 in)
1978135.1 mm (5.3 in)
1979115.8 mm (4.6 in)
198079.0 mm (3.1 in)
198194.1 mm (3.7 in)
198289.4 mm (3.5 in)
198380.8 mm (3.2 in)
198498.1 mm (3.9 in)
198584.3 mm (3.3 in)
1986124.5 mm (4.9 in)
1987122.9 mm (4.8 in)
198851.8 mm (2.0 in)
198996.5 mm (3.8 in)
1990168.4 mm (6.6 in)
199183.0 mm (3.3 in)
199281.3 mm (3.2 in)
1993156.0 mm (6.1 in)
1994112.3 mm (4.4 in)
199586.1 mm (3.4 in)
1996261.1 mm (10.3 in)
199799.0 mm (3.9 in)
1998122.7 mm (4.8 in)
1999112.0 mm (4.4 in)
2000171.7 mm (6.8 in)
2001106.2 mm (4.2 in)
2002123.4 mm (4.9 in)
2003108.4 mm (4.3 in)
200499.5 mm (3.9 in)
200545.7 mm (1.8 in)
200669.3 mm (2.7 in)
2007155.7 mm (6.1 in)
2008183.1 mm (7.2 in)
2009105.0 mm (4.1 in)
2010102.7 mm (4.0 in)
201174.2 mm (2.9 in)
201254.9 mm (2.2 in)
2013161.1 mm (6.3 in)
2014152.9 mm (6.0 in)
2015142.1 mm (5.6 in)
201686.2 mm (3.4 in)
2017131.6 mm (5.2 in)
2018145.0 mm (5.7 in)
2019113.3 mm (4.5 in)
202095.7 mm (3.8 in)
202169.2 mm (2.7 in)
2022144.8 mm (5.7 in)
202374.7 mm (2.9 in)
2024115.3 mm (4.5 in)
2025122.9 mm (4.8 in)
2026149.2 mm (5.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Monroe Wwtp by year The longest dry spell of the year at Monroe Wwtp, 1948 to 2026. The record is 55 days in 1952, marked on the chart; the median year is 22 days. 02040601960198020002020Record: 55 days in 1952
The longest dry spell of the year at Monroe Wwtp, 1948 to 2026. The record is 55 days in 1952, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Monroe Wwtp by year
YearLongest dry spell (CDD)
194818 days
194921 days
195030 days
195115 days
195255 days
195323 days
195419 days
195516 days
195625 days
195729 days
195826 days
195922 days
196015 days
196123 days
196220 days
196322 days
196423 days
196519 days
196632 days
196723 days
196819 days
196940 days
197025 days
197122 days
197213 days
197315 days
197413 days
197517 days
197626 days
197717 days
197822 days
197930 days
198019 days
198131 days
198223 days
198321 days
198420 days
198518 days
198622 days
198729 days
198838 days
198922 days
199017 days
199123 days
199220 days
199322 days
199422 days
199523 days
199628 days
199715 days
199824 days
199937 days
200020 days
200125 days
200216 days
200319 days
200419 days
200517 days
200616 days
200728 days
200813 days
200926 days
201029 days
201117 days
201221 days
201322 days
201416 days
201521 days
201614 days
201719 days
201820 days
201912 days
202017 days
202122 days
202223 days
202322 days
202431 days
202522 days
202628 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

20 years with a frost

Across 20 years with a frost, the median last spring frost at Monroe Wwtp falls on 3 May and the median first autumn frost on 12 October, which leaves a median of 164 days between them.

Frost dates and growing season at Monroe Wwtp
MeasureMedian, all yearsEarliest periodRecent period (2002 to 2025)Recent against earliestFitted trend
Last spring frost3 Mayn/a3 Mayn/an/a
First autumn frost12 Octobern/a12 Octobern/an/a
Growing days164 daysn/a164 daysn/an/a

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

75 years, 1949 to 2025

A day with at least 64.3 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 168.6 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Monroe Wwtp: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years64.3 mm (2.5 in)
5 years88.6 mm (3.5 in)
10 years106.0 mm (4.2 in)
25 years129.7 mm (5.1 in)
50 years148.6 mm (5.9 in)
100 years168.6 mm (6.6 in)Longer than the 75 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, 75 years of values from 1949 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: 256.5 mm (10.1 in) in 1996; 147.8 mm (5.8 in) in 1990; 134.6 mm (5.3 in) in 2000.

Download the Data

  • Data for Monroe Wwtp standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Monroe Wwtp 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).