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Built 2026-10-16 (16 October 2026)

Belvidere Wwtp Weather Records (USC00110583)

Record envelope, standing records and threshold days for Belvidere Wwtp (USC00110583), Illinois, United States, with 86 years of record.

Key Facts for Belvidere Wwtp

  • Belvidere Wwtp (USC00110583) is a weather station in Illinois, United States at 42.26 latitude and -88.86 longitude, 230 m (753 ft) above sea level.
  • The station reports from 1941 to 2026, 86 years of record.
  • 0 records set at Belvidere Wwtp still stand.
  • Records are tracked for prcp: an element needs 30 years of data to be eligible.
  • Belvidere Wwtp set a daily record precipitation of 29.2 mm (1.1 in) on 11 June 2026.

About the Station

  • Location: Illinois, United States, 42.26 latitude, -88.86 longitude.
  • Elevation: 230 m (753 ft).
  • Period of record: 1941 to 2026, 86 years.
  • Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Belvidere Wwtp, with 2026 drawn through them The band shows the record high and record low for each calendar day at Belvidere Wwtp. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Belvidere Wwtp. 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 Belvidere Wwtp, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Octn/an/an/an/a
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Decn/an/an/an/a

Which Years Hold Standing Records

0 standing records
Standing records at Belvidere Wwtp by the year they were set 0 records at Belvidere Wwtp still stand. 00000000000
0 records at Belvidere Wwtp still stand.
Standing records at Belvidere Wwtp by the year they were set
Year setStanding records

Wettest Day of Each Month

Aug: 179.6 mm (7.1 in)
Record daily precipitation for each month at Belvidere Wwtp The wettest day on record for each calendar month at Belvidere Wwtp. The most was 179.6 mm (7.1 in) on 22 August 2002. 050100150200 Jan: 44.7 mm (1.8 in), 29 January 1947 Jan Feb: 31.5 mm (1.2 in), 23 February 2019 Feb Mar: 98.6 mm (3.9 in), 4 March 1944 Mar Apr: 116.8 mm (4.6 in), 18 April 2013 Apr May: 73.7 mm (2.9 in), 13 May 2010 May Jun: 119.4 mm (4.7 in), 29 June 2017 Jun Jul: 121.9 mm (4.8 in), 24 July 2016 Jul Aug: 179.6 mm (7.1 in), 22 August 2002 Aug Sep: 111.0 mm (4.4 in), 23 September 2000 Sep Oct: 96.0 mm (3.8 in), 1 October 1945 Oct Nov: 50.0 mm (2.0 in), 6 November 1943 Nov Dec: 56.1 mm (2.2 in), 10 December 2003 Dec
The wettest day on record for each calendar month at Belvidere Wwtp. The most was 179.6 mm (7.1 in) on 22 August 2002.
Record daily precipitation for each month at Belvidere Wwtp
MonthRecord daily precipitation (mm)Date
Jan44.7 mm (1.8 in)29 January 1947
Feb31.5 mm (1.2 in)23 February 2019
Mar98.6 mm (3.9 in)4 March 1944
Apr116.8 mm (4.6 in)18 April 2013
May73.7 mm (2.9 in)13 May 2010
Jun119.4 mm (4.7 in)29 June 2017
Jul121.9 mm (4.8 in)24 July 2016
Aug179.6 mm (7.1 in)22 August 2002
Sep111.0 mm (4.4 in)23 September 2000
Oct96.0 mm (3.8 in)1 October 1945
Nov50.0 mm (2.0 in)6 November 1943
Dec56.1 mm (2.2 in)10 December 2003

Latest Records

20
Latest records at Belvidere Wwtp
DateStationRecordValueBeat old record byOld record stoodSignificance
11 June 2026Belvidere Wwtp, USdaily rain29.2 mm (1.1 in)0.8 mm (0.03 in)27 years16 of 100 (Routine)
4 April 2026Belvidere Wwtp, USdaily rain25.4 mm (1.0 in)8.4 mm (0.33 in)4 years16 of 100 (Routine)
16 March 2026Belvidere Wwtp, USdaily rain35.1 mm (1.4 in)12.5 mm (0.5 in)9 years22 of 100 (Routine)
19 October 2025Belvidere Wwtp, USdaily rain12.7 mm (0.5 in)5.3 mm (0.21 in)2 years12 of 100 (Routine)
22 September 2025Belvidere Wwtp, USdaily rain30.5 mm (1.2 in)13.5 mm (0.5 in)8 years18 of 100 (Routine)
17 August 2025Belvidere Wwtp, USdaily rain34.0 mm (1.3 in)1.2 mm (0.05 in)76 years30 of 100 (Routine)
11 July 2025Belvidere Wwtp, USdaily rain69.9 mm (2.8 in)51.1 mm (2.0 in)16 years41 of 100 (Notable)
21 May 2025Belvidere Wwtp, USdaily rain24.1 mm (0.9 in)4.5 mm (0.18 in)80 years20 of 100 (Routine)
20 March 2025Belvidere Wwtp, USdaily rain20.3 mm (0.8 in)16.0 mm (0.6 in)15 years20 of 100 (Routine)
19 November 2024Belvidere Wwtp, USdaily rain19.8 mm (0.8 in)3.3 mm (0.13 in)83 years20 of 100 (Routine)
15 July 2024Belvidere Wwtp, USdaily rain67.3 mm (2.6 in)21.6 mm (0.9 in)21 years26 of 100 (Routine)
14 July 2024Belvidere Wwtp, USdaily rain96.5 mm (3.8 in)39.3 mm (1.5 in)77 years53 of 100 (Notable)
23 June 2024Belvidere Wwtp, USdaily rain63.5 mm (2.5 in)36.3 mm (1.4 in)7 years32 of 100 (Routine)
25 May 2024Belvidere Wwtp, USdaily rain22.9 mm (0.9 in)5.6 mm (0.22 in)78 years20 of 100 (Routine)
26 March 2024Belvidere Wwtp, USdaily rain46.5 mm (1.8 in)25.2 mm (1.0 in)20 years40 of 100 (Notable)
15 February 2024Belvidere Wwtp, USdaily rain7.1 mm (0.28 in)3.0 mm (0.12 in)0 years12 of 100 (Routine)
26 January 2024Belvidere Wwtp, USdaily rain6.4 mm (0.25 in)1.1 mm (0.04 in)2 years9 of 100 (Routine)
12 January 2024Belvidere Wwtp, USdaily rain10.7 mm (0.4 in)6.1 mm (0.24 in)24 years20 of 100 (Routine)
10 January 2024Belvidere Wwtp, USdaily rain10.2 mm (0.4 in)2.8 mm (0.11 in)14 years16 of 100 (Routine)
21 November 2023Belvidere Wwtp, USdaily rain (Tie)14.0 mm (0.6 in)tie4 years2 of 100 (Routine)

Extremes by Year

1941 to 2026
Yearly extremes at Belvidere Wwtp: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)179.6 mm (7.1 in)200269.9 mm (2.8 in)41
Wettest five days (Rx5day)213.8 mm (8.4 in)2007108.2 mm (4.3 in)41
Longest dry spell (CDD)36 days199920 days41

Wettest day (Rx1day)

Wettest day (Rx1day) at Belvidere Wwtp by year The wettest day of the year at Belvidere Wwtp, 1941 to 2026. The record is 179.6 mm (7.1 in) in 2002, marked on the chart; the median year is 69.9 mm (2.8 in). 0501001502001960198020002020Record: 179.6 mm (7.1 in) in 2002
The wettest day of the year at Belvidere Wwtp, 1941 to 2026. The record is 179.6 mm (7.1 in) in 2002, marked on the chart; the median year is 69.9 mm (2.8 in).
Wettest day (Rx1day) at Belvidere Wwtp by year
YearWettest day (Rx1day)
194116.5 mm (0.6 in)
1942107.7 mm (4.2 in)
194367.8 mm (2.7 in)
194498.6 mm (3.9 in)
194596.0 mm (3.8 in)
194636.8 mm (1.4 in)
194784.8 mm (3.3 in)
194850.0 mm (2.0 in)
194973.2 mm (2.9 in)
195057.9 mm (2.3 in)
195173.7 mm (2.9 in)
199727.2 mm (1.1 in)
199866.0 mm (2.6 in)
199982.0 mm (3.2 in)
2000111.0 mm (4.4 in)
200158.7 mm (2.3 in)
2002179.6 mm (7.1 in)
200356.1 mm (2.2 in)
200463.0 mm (2.5 in)
200552.1 mm (2.1 in)
2006116.8 mm (4.6 in)
2007160.0 mm (6.3 in)
200860.5 mm (2.4 in)
2009101.6 mm (4.0 in)
2010111.8 mm (4.4 in)
201164.8 mm (2.6 in)
201266.0 mm (2.6 in)
2013116.8 mm (4.6 in)
201460.2 mm (2.4 in)
201561.0 mm (2.4 in)
2016121.9 mm (4.8 in)
2017119.4 mm (4.7 in)
201856.6 mm (2.2 in)
2019101.6 mm (4.0 in)
202050.3 mm (2.0 in)
2021132.1 mm (5.2 in)
202278.7 mm (3.1 in)
202362.7 mm (2.5 in)
202496.5 mm (3.8 in)
202569.9 mm (2.8 in)
202655.9 mm (2.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Belvidere Wwtp by year The wettest five days of the year at Belvidere Wwtp, 1941 to 2026. The record is 213.8 mm (8.4 in) in 2007, marked on the chart; the median year is 108.2 mm (4.3 in). 0501001502002501960198020002020Record: 213.8 mm (8.4 in) in 2007
The wettest five days of the year at Belvidere Wwtp, 1941 to 2026. The record is 213.8 mm (8.4 in) in 2007, marked on the chart; the median year is 108.2 mm (4.3 in).
Wettest five days (Rx5day) at Belvidere Wwtp by year
YearWettest five days (Rx5day)
194124.2 mm (1.0 in)
1942130.5 mm (5.1 in)
194376.7 mm (3.0 in)
194438.6 mm (1.5 in)
1945142.8 mm (5.6 in)
194645.0 mm (1.8 in)
194784.8 mm (3.3 in)
194878.7 mm (3.1 in)
1949110.6 mm (4.4 in)
1950115.0 mm (4.5 in)
195181.3 mm (3.2 in)
199746.8 mm (1.8 in)
199896.7 mm (3.8 in)
1999159.9 mm (6.3 in)
2000132.4 mm (5.2 in)
200174.5 mm (2.9 in)
2002186.4 mm (7.3 in)
200374.9 mm (2.9 in)
2004102.9 mm (4.1 in)
200573.7 mm (2.9 in)
2006152.1 mm (6.0 in)
2007213.8 mm (8.4 in)
2008107.0 mm (4.2 in)
2009112.0 mm (4.4 in)
2010160.1 mm (6.3 in)
2011114.8 mm (4.5 in)
201278.2 mm (3.1 in)
2013128.2 mm (5.0 in)
2014104.7 mm (4.1 in)
201591.7 mm (3.6 in)
2016164.1 mm (6.5 in)
2017144.8 mm (5.7 in)
2018132.8 mm (5.2 in)
2019108.2 mm (4.3 in)
2020121.2 mm (4.8 in)
2021157.5 mm (6.2 in)
2022137.1 mm (5.4 in)
202386.4 mm (3.4 in)
2024185.4 mm (7.3 in)
202599.1 mm (3.9 in)
202699.0 mm (3.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Belvidere Wwtp by year The longest dry spell of the year at Belvidere Wwtp, 1941 to 2026. The record is 36 days in 1999, marked on the chart; the median year is 20 days. 102030401960198020002020Record: 36 days in 1999
The longest dry spell of the year at Belvidere Wwtp, 1941 to 2026. The record is 36 days in 1999, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Belvidere Wwtp by year
YearLongest dry spell (CDD)
194119 days
194221 days
194327 days
194418 days
194524 days
194619 days
194719 days
194832 days
194922 days
195023 days
195115 days
199715 days
199824 days
199936 days
200020 days
200125 days
200220 days
200333 days
200420 days
200517 days
200618 days
200717 days
200814 days
200922 days
201020 days
201118 days
201221 days
201326 days
201421 days
201526 days
201619 days
201722 days
201819 days
201914 days
202020 days
202123 days
202213 days
202319 days
202429 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.

Rainfall Return Levels

35 years, 1942 to 2025

A day with at least 77.2 mm (3.0 in) of rain is expected about once in 2 years. A day with at least 208.7 mm (8.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Belvidere Wwtp: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years77.2 mm (3.0 in)
5 years106.7 mm (4.2 in)
10 years128.4 mm (5.1 in)
25 years158.3 mm (6.2 in)
50 years182.7 mm (7.2 in)Longer than the 35 years of record
100 years208.7 mm (8.2 in)Longer than the 35 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, 35 years of values from 1942 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: 179.6 mm (7.1 in) in 2002; 160.0 mm (6.3 in) in 2007; 132.1 mm (5.2 in) in 2021.

Download the Data

  • Data for Belvidere Wwtp standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Belvidere 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).