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Data as of 2026-10-12
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Built 2026-10-16 (16 October 2026)

Chatsworth Weather Records (USC00111447)

Record envelope, standing records and threshold days for Chatsworth (USC00111447), Illinois, United States, with 31 years of record.

Key Facts for Chatsworth

  • Chatsworth (USC00111447) is a weather station in Illinois, United States at 40.75 latitude and -88.29 longitude, 220 m (722 ft) above sea level.
  • The station reports from 1996 to 2026, 31 years of record.
  • 0 records set at Chatsworth still stand.
  • Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
  • Chatsworth set a daily record precipitation of 18.8 mm (0.7 in) on 18 April 2026.

About the Station

  • Location: Illinois, United States, 40.75 latitude, -88.29 longitude.
  • Elevation: 220 m (722 ft).
  • Period of record: 1996 to 2026, 31 years.
  • Eligible elements: prcp, snow.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Chatsworth, with 2026 drawn through them The band shows the record high and record low for each calendar day at Chatsworth. 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 Chatsworth. 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 Chatsworth, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jann/an/an/an/a
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Aprn/an/an/an/a
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Juln/an/an/an/a
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Novn/an/an/an/a
Decn/an/an/an/a

Which Years Hold Standing Records

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

Wettest Day of Each Month

Jul: 124.5 mm (4.9 in)
Record daily precipitation for each month at Chatsworth The wettest day on record for each calendar month at Chatsworth. The most was 124.5 mm (4.9 in) on 12 July 2006. 050100150 Jan: 101.6 mm (4.0 in), 8 January 2008 Jan Feb: 63.5 mm (2.5 in), 20 February 2018 Feb Mar: 79.2 mm (3.1 in), 23 March 2007 Mar Apr: 88.9 mm (3.5 in), 16 April 2006 Apr May: 93.2 mm (3.7 in), 14 May 2024 May Jun: 95.3 mm (3.8 in), 26 June 2021 Jun Jul: 124.5 mm (4.9 in), 12 July 2006 Jul Aug: 105.2 mm (4.1 in), 6 August 2023 Aug Sep: 66.0 mm (2.6 in), 5 September 2008 Sep Oct: 71.1 mm (2.8 in), 23 October 2009 Oct Nov: 70.4 mm (2.8 in), 18 November 2003 Nov Dec: 48.5 mm (1.9 in), 15 December 2011 Dec
The wettest day on record for each calendar month at Chatsworth. The most was 124.5 mm (4.9 in) on 12 July 2006.
Record daily precipitation for each month at Chatsworth
MonthRecord daily precipitation (mm)Date
Jan101.6 mm (4.0 in)8 January 2008
Feb63.5 mm (2.5 in)20 February 2018
Mar79.2 mm (3.1 in)23 March 2007
Apr88.9 mm (3.5 in)16 April 2006
May93.2 mm (3.7 in)14 May 2024
Jun95.3 mm (3.8 in)26 June 2021
Jul124.5 mm (4.9 in)12 July 2006
Aug105.2 mm (4.1 in)6 August 2023
Sep66.0 mm (2.6 in)5 September 2008
Oct71.1 mm (2.8 in)23 October 2009
Nov70.4 mm (2.8 in)18 November 2003
Dec48.5 mm (1.9 in)15 December 2011

Latest Records

7
Latest records at Chatsworth
DateStationRecordValueBeat old record byOld record stoodSignificance
18 April 2026Chatsworth, USdaily rain18.8 mm (0.7 in)13.7 mm (0.5 in)20 years20 of 100 (Routine)
1 April 2026Chatsworth, USdaily rain43.2 mm (1.7 in)20.3 mm (0.8 in)3 years22 of 100 (Routine)
16 March 2026Chatsworth, USdaily rain25.4 mm (1.0 in)5.6 mm (0.22 in)25 years16 of 100 (Routine)
16 March 2026Chatsworth, USdaily snowfall2.5 cm (1.0 in)0.7 cm (0.3 in)21 years10 of 100 (Routine)
11 March 2026Chatsworth, USdaily rain14.5 mm (0.6 in)3.1 mm (0.12 in)16 years11 of 100 (Routine)
7 March 2026Chatsworth, USdaily rain16.5 mm (0.6 in)5.3 mm (0.21 in)28 years17 of 100 (Routine)
25 January 2026Chatsworth, USdaily snowfall10.2 cm (4.0 in)2.6 cm (1.0 in)3 years8 of 100 (Routine)

Extremes by Year

1996 to 2026
Yearly extremes at Chatsworth: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)124.5 mm (4.9 in)200671.9 mm (2.8 in)31
Wettest five days (Rx5day)172.0 mm (6.8 in)202197.0 mm (3.8 in)31
Longest dry spell (CDD)48 days199819 days31

Wettest day (Rx1day)

Wettest day (Rx1day) at Chatsworth by year The wettest day of the year at Chatsworth, 1996 to 2026. The record is 124.5 mm (4.9 in) in 2006, marked on the chart; the median year is 71.9 mm (2.8 in). 255075100125200020052010201520202025Record: 124.5 mm (4.9 in) in 2006
The wettest day of the year at Chatsworth, 1996 to 2026. The record is 124.5 mm (4.9 in) in 2006, marked on the chart; the median year is 71.9 mm (2.8 in).
Wettest day (Rx1day) at Chatsworth by year
YearWettest day (Rx1day)
199661.7 mm (2.4 in)
199788.1 mm (3.5 in)
199891.4 mm (3.6 in)
199939.4 mm (1.6 in)
200046.2 mm (1.8 in)
200171.9 mm (2.8 in)
200261.7 mm (2.4 in)
200379.2 mm (3.1 in)
200443.2 mm (1.7 in)
200554.6 mm (2.1 in)
2006124.5 mm (4.9 in)
200794.0 mm (3.7 in)
2008101.6 mm (4.0 in)
200971.1 mm (2.8 in)
201038.1 mm (1.5 in)
201148.5 mm (1.9 in)
201253.6 mm (2.1 in)
201363.5 mm (2.5 in)
201459.7 mm (2.4 in)
201580.8 mm (3.2 in)
201676.2 mm (3.0 in)
201781.3 mm (3.2 in)
201882.0 mm (3.2 in)
201960.2 mm (2.4 in)
202075.4 mm (3.0 in)
202195.3 mm (3.8 in)
2022114.3 mm (4.5 in)
2023105.2 mm (4.1 in)
202493.2 mm (3.7 in)
202558.4 mm (2.3 in)
202643.2 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chatsworth by year The wettest five days of the year at Chatsworth, 1996 to 2026. The record is 172.0 mm (6.8 in) in 2021, marked on the chart; the median year is 97.0 mm (3.8 in). 50100150200200020052010201520202025Record: 172.0 mm (6.8 in) in 2021
The wettest five days of the year at Chatsworth, 1996 to 2026. The record is 172.0 mm (6.8 in) in 2021, marked on the chart; the median year is 97.0 mm (3.8 in).
Wettest five days (Rx5day) at Chatsworth by year
YearWettest five days (Rx5day)
199695.3 mm (3.8 in)
199794.4 mm (3.7 in)
199893.9 mm (3.7 in)
1999103.6 mm (4.1 in)
200075.4 mm (3.0 in)
200193.5 mm (3.7 in)
200285.3 mm (3.4 in)
200397.0 mm (3.8 in)
200490.7 mm (3.6 in)
200591.9 mm (3.6 in)
2006136.2 mm (5.4 in)
2007135.9 mm (5.4 in)
2008139.1 mm (5.5 in)
200983.1 mm (3.3 in)
201085.6 mm (3.4 in)
201159.7 mm (2.4 in)
201253.6 mm (2.1 in)
201399.9 mm (3.9 in)
2014101.7 mm (4.0 in)
2015103.2 mm (4.1 in)
2016155.5 mm (6.1 in)
2017116.9 mm (4.6 in)
2018146.3 mm (5.8 in)
2019109.2 mm (4.3 in)
202091.9 mm (3.6 in)
2021172.0 mm (6.8 in)
2022149.8 mm (5.9 in)
2023143.3 mm (5.6 in)
2024107.7 mm (4.2 in)
202571.2 mm (2.8 in)
202655.4 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Chatsworth by year The longest dry spell of the year at Chatsworth, 1996 to 2026. The record is 48 days in 1998, marked on the chart; the median year is 19 days. 1020304050200020052010201520202025Record: 48 days in 1998
The longest dry spell of the year at Chatsworth, 1996 to 2026. The record is 48 days in 1998, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Chatsworth by year
YearLongest dry spell (CDD)
199621 days
199717 days
199848 days
199937 days
200020 days
200126 days
200223 days
200314 days
200422 days
200524 days
200616 days
200721 days
200817 days
200914 days
201026 days
201117 days
201216 days
201321 days
201411 days
201538 days
201621 days
201717 days
201812 days
201916 days
202017 days
202116 days
202216 days
202321 days
202419 days
202518 days
202625 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

30 years, 1996 to 2025

A day with at least 72.0 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 133.7 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Chatsworth: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years72.0 mm (2.8 in)
5 years92.8 mm (3.7 in)
10 years104.6 mm (4.1 in)
25 years117.7 mm (4.6 in)
50 years126.1 mm (5.0 in)Longer than the 30 years of record
100 years133.7 mm (5.3 in)Longer than the 30 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, 30 years of values from 1996 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: 124.5 mm (4.9 in) in 2006; 114.3 mm (4.5 in) in 2022; 105.2 mm (4.1 in) in 2023.

Download the Data

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