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Built 2026-10-17 (17 October 2026)

Petersburg 1E Weather Records (USC00116765)

Record envelope, standing records and threshold days for Petersburg 1E (USC00116765), Illinois, United States, with 39 years of record.

Key Facts for Petersburg 1E

  • Petersburg 1E (USC00116765) is a weather station in Illinois, United States at 40.02 latitude and -89.83 longitude, 183 m (600 ft) above sea level.
  • The station reports from 1988 to 2026, 39 years of record.
  • 1,464 records set at Petersburg 1E still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Petersburg 1E set a daily record precipitation of 58.4 mm (2.3 in) on 15 August 2026.

About the Station

  • Location: Illinois, United States, 40.02 latitude, -89.83 longitude.
  • Elevation: 183 m (600 ft).
  • Period of record: 1988 to 2026, 39 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

56 days at or beyond a record
Daily record high and record low at Petersburg 1E, with 2026 drawn through them The band shows the record high and record low for each calendar day at Petersburg 1E. The lines show the 2026 daily maximum and minimum. 56 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 Petersburg 1E. The lines show the 2026 daily maximum and minimum. 56 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Petersburg 1E, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan19.4 C (66.9 F)-26.7 C (-16.1 F)16.7 C (62.1 F)-21.7 C (-7.1 F)
Feb27.2 C (81.0 F)-23.3 C (-9.9 F)23.3 C (73.9 F)-16.7 C (1.9 F)
Mar33.3 C (91.9 F)-18.9 C (-2.0 F)33.3 C (91.9 F)-12.2 C (10.0 F)
Apr31.1 C (88.0 F)-11.1 C (12.0 F)31.1 C (88.0 F)0.6 C (33.1 F)
May34.4 C (93.9 F)-0.6 C (30.9 F)31.7 C (89.1 F)3.3 C (37.9 F)
Jun36.7 C (98.1 F)8.9 C (48.0 F)32.2 C (90.0 F)11.1 C (52.0 F)
Jul35.6 C (96.1 F)7.8 C (46.0 F)34.4 C (93.9 F)12.8 C (55.0 F)
Aug36.1 C (97.0 F)6.7 C (44.1 F)33.9 C (93.0 F)13.3 C (55.9 F)
Sep36.7 C (98.1 F)2.2 C (36.0 F)35.6 C (96.1 F)8.3 C (46.9 F)
Oct31.7 C (89.1 F)-3.9 C (25.0 F)n/an/a
Nov26.7 C (80.1 F)-15.0 C (5.0 F)n/an/a
Dec21.7 C (71.1 F)-23.3 C (-9.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Petersburg 1E by the year they were set 1,464 records at Petersburg 1E still stand. 2018 holds the most, with 150. 0501001502014: 502015: 1422016: 992017: 1432018: 1502019: 972020: 982021: 992022: 1382023: 1272024: 1172025: 1172026: 872014201620182020202220242026
1,464 records at Petersburg 1E still stand. 2018 holds the most, with 150.
Standing records at Petersburg 1E by the year they were set
Year setStanding records
201450
2015142
201699
2017143
2018150
201997
202098
202199
2022138
2023127
2024117
2025117
202687

Wettest Day of Each Month

Jan: 112.5 mm (4.4 in)
Record daily precipitation for each month at Petersburg 1E The wettest day on record for each calendar month at Petersburg 1E. The most was 112.5 mm (4.4 in) on 8 January 2008. 050100150 Jan: 112.5 mm (4.4 in), 8 January 2008 Jan Feb: 57.4 mm (2.3 in), 23 February 2023 Feb Mar: 47.8 mm (1.9 in), 18 March 2021 Mar Apr: 88.1 mm (3.5 in), 30 April 2017 Apr May: 111.8 mm (4.4 in), 8 May 1996 May Jun: 94.7 mm (3.7 in), 3 June 2008 Jun Jul: 86.1 mm (3.4 in), 8 July 2022 Jul Aug: 96.8 mm (3.8 in), 29 August 2018 Aug Sep: 103.9 mm (4.1 in), 12 September 2008 Sep Oct: 66.8 mm (2.6 in), 14 October 2012 Oct Nov: 79.8 mm (3.1 in), 18 November 2003 Nov Dec: 55.4 mm (2.2 in), 27 December 2015 Dec
The wettest day on record for each calendar month at Petersburg 1E. The most was 112.5 mm (4.4 in) on 8 January 2008.
Record daily precipitation for each month at Petersburg 1E
MonthRecord daily precipitation (mm)Date
Jan112.5 mm (4.4 in)8 January 2008
Feb57.4 mm (2.3 in)23 February 2023
Mar47.8 mm (1.9 in)18 March 2021
Apr88.1 mm (3.5 in)30 April 2017
May111.8 mm (4.4 in)8 May 1996
Jun94.7 mm (3.7 in)3 June 2008
Jul86.1 mm (3.4 in)8 July 2022
Aug96.8 mm (3.8 in)29 August 2018
Sep103.9 mm (4.1 in)12 September 2008
Oct66.8 mm (2.6 in)14 October 2012
Nov79.8 mm (3.1 in)18 November 2003
Dec55.4 mm (2.2 in)27 December 2015

Period of Record Coverage

2014 to 2026
Days with data per year at Petersburg 1E 13 years of record at Petersburg 1E, 2014 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2014, 2026. 2014: 122 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 340 of 365 days2020: 366 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 249 of 365 days201520202025
13 years of record at Petersburg 1E, 2014 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2014, 2026.
Days with data per year at Petersburg 1E
YearDays with dataShare of yearComplete
201412233%No
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
201934093%Yes
2020366100%Yes
2021364100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202624968%No

Latest Records

20
Latest records at Petersburg 1E
DateStationRecordValueBeat old record byOld record stoodSignificance
15 August 2026Petersburg 1E, USdaily rain58.4 mm (2.3 in)29.2 mm (1.1 in)28 years29 of 100 (Routine)
22 June 2026Petersburg 1E, USdaily rain41.4 mm (1.6 in)0.3 mm (0.01 in)7 years5 of 100 (Routine)
18 June 2026Petersburg 1E, USdaily rain70.6 mm (2.8 in)50.5 mm (2.0 in)16 years43 of 100 (Notable)
18 April 2026Petersburg 1E, USdaily rain35.8 mm (1.4 in)11.2 mm (0.4 in)12 years16 of 100 (Routine)
1 April 2026Petersburg 1E, USdaily rain41.9 mm (1.6 in)29.5 mm (1.2 in)17 years35 of 100 (Notable)
16 March 2026Petersburg 1E, USdaily rain28.4 mm (1.1 in)14.2 mm (0.6 in)4 years21 of 100 (Routine)
11 March 2026Petersburg 1E, USdaily rain25.9 mm (1.0 in)1.5 mm (0.06 in)12 years7 of 100 (Routine)
7 March 2026Petersburg 1E, USdaily rain44.7 mm (1.8 in)7.6 mm (0.30 in)31 years21 of 100 (Routine)
4 March 2026Petersburg 1E, USdaily rain38.1 mm (1.5 in)6.9 mm (0.27 in)3 years11 of 100 (Routine)
2 March 2026Petersburg 1E, USdaily snowfall3.6 cm (1.4 in)3.6 cm (1.4 in)37 years20 of 100 (Routine)
2 March 2026Petersburg 1E, USdaily snow depth (Tie)2.5 cm (1.0 in)tie32 years3 of 100 (Routine)
27 January 2026Petersburg 1E, USdaily snow depth (Tie)7.6 cm (3.0 in)tie28 years2 of 100 (Routine)
26 January 2026Petersburg 1E, USdaily snow depth7.6 cm (3.0 in)2.5 cm (1.0 in)35 years16 of 100 (Routine)
25 January 2026Petersburg 1E, USdaily snowfall10.7 cm (4.2 in)4.9 cm (1.9 in)3 years18 of 100 (Routine)
25 January 2026Petersburg 1E, USdaily snow depth10.2 cm (4.0 in)5.1 cm (2.0 in)3 years10 of 100 (Routine)
16 December 2025Petersburg 1E, USdaily snow depth (Tie)15.2 cm (6.0 in)tie24 years2 of 100 (Routine)
15 December 2025Petersburg 1E, USdaily snow depth17.8 cm (7.0 in)2.6 cm (1.0 in)24 years15 of 100 (Routine)
14 December 2025Petersburg 1E, USmonthly snowfall16.5 cm (6.5 in)2.5 cm (1.0 in)12 years24 of 100 (Routine)
14 December 2025Petersburg 1E, USdaily snow depth20.3 cm (8.0 in)5.1 cm (2.0 in)24 years20 of 100 (Routine)
13 December 2025Petersburg 1E, USdaily snow depth7.6 cm (3.0 in)5.1 cm (2.0 in)30 years20 of 100 (Routine)

Extremes by Year

1988 to 2026
Yearly extremes at Petersburg 1E: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)36.7 C (98.1 F)202534.4 C (93.9 F)13
Coldest night (TNn)-26.7 C (-16.1 F)2019-21.7 C (-7.1 F)13
Wettest day (Rx1day)112.5 mm (4.4 in)200869.1 mm (2.7 in)39
Wettest five days (Rx5day)196.7 mm (7.7 in)2008101.8 mm (4.0 in)39
Longest dry spell (CDD)43 days201020 days39

Hottest day (TXx)

Hottest day (TXx) at Petersburg 1E by year The hottest day of the year at Petersburg 1E, 1988 to 2026. The record is 36.7 C (98.1 F) in 2025, marked on the chart; the median year is 34.4 C (93.9 F). 3233343536371990200020102020Record: 36.7 C (98.1 F) in 2025
The hottest day of the year at Petersburg 1E, 1988 to 2026. The record is 36.7 C (98.1 F) in 2025, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Petersburg 1E by year
YearHottest day (TXx)
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
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
201432.8 C (91.0 F)
201534.4 C (93.9 F)
201633.9 C (93.0 F)
201735.0 C (95.0 F)
201834.4 C (93.9 F)
201933.3 C (91.9 F)
202033.9 C (93.0 F)
202134.4 C (93.9 F)
202235.6 C (96.1 F)
202336.1 C (97.0 F)
202436.1 C (97.0 F)
202536.7 C (98.1 F)
202635.6 C (96.1 F)

Coldest night (TNn)

Coldest night (TNn) at Petersburg 1E by year The coldest night of the year at Petersburg 1E, 1988 to 2026. The record is -26.7 C (-16.1 F) in 2019, marked on the chart; the median year is -21.7 C (-7.1 F). -30-25-20-151990200020102020Record: -26.7 C (-16.1 F) in 2019
The coldest night of the year at Petersburg 1E, 1988 to 2026. The record is -26.7 C (-16.1 F) in 2019, marked on the chart; the median year is -21.7 C (-7.1 F).
Coldest night (TNn) at Petersburg 1E by year
YearColdest night (TNn)
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
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009n/a
2010n/a
2011n/a
2012n/a
2013n/a
2014-15.0 C (5.0 F)
2015-23.3 C (-9.9 F)
2016-21.1 C (-6.0 F)
2017-21.7 C (-7.1 F)
2018-26.1 C (-15.0 F)
2019-26.7 C (-16.1 F)
2020-21.1 C (-6.0 F)
2021-21.7 C (-7.1 F)
2022-23.3 C (-9.9 F)
2023-16.7 C (1.9 F)
2024-25.0 C (-13.0 F)
2025-22.2 C (-8.0 F)
2026-21.7 C (-7.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Petersburg 1E by year The wettest day of the year at Petersburg 1E, 1988 to 2026. The record is 112.5 mm (4.4 in) in 2008, marked on the chart; the median year is 69.1 mm (2.7 in). 204060801001201990200020102020Record: 112.5 mm (4.4 in) in 2008
The wettest day of the year at Petersburg 1E, 1988 to 2026. The record is 112.5 mm (4.4 in) in 2008, marked on the chart; the median year is 69.1 mm (2.7 in).
Wettest day (Rx1day) at Petersburg 1E by year
YearWettest day (Rx1day)
198851.8 mm (2.0 in)
198954.4 mm (2.1 in)
199078.5 mm (3.1 in)
199176.7 mm (3.0 in)
199248.8 mm (1.9 in)
199377.7 mm (3.1 in)
199469.1 mm (2.7 in)
199574.2 mm (2.9 in)
1996111.8 mm (4.4 in)
199734.8 mm (1.4 in)
199863.8 mm (2.5 in)
199989.9 mm (3.5 in)
200080.5 mm (3.2 in)
200160.5 mm (2.4 in)
200277.0 mm (3.0 in)
200379.8 mm (3.1 in)
200468.1 mm (2.7 in)
200557.2 mm (2.3 in)
200662.5 mm (2.5 in)
200740.9 mm (1.6 in)
2008112.5 mm (4.4 in)
200965.5 mm (2.6 in)
201044.7 mm (1.8 in)
201174.9 mm (2.9 in)
201283.6 mm (3.3 in)
201349.8 mm (2.0 in)
201458.2 mm (2.3 in)
201557.9 mm (2.3 in)
201648.3 mm (1.9 in)
201788.1 mm (3.5 in)
201896.8 mm (3.8 in)
201972.1 mm (2.8 in)
202066.3 mm (2.6 in)
202177.0 mm (3.0 in)
202286.1 mm (3.4 in)
202357.4 mm (2.3 in)
202472.1 mm (2.8 in)
202540.4 mm (1.6 in)
202670.6 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Petersburg 1E by year The wettest five days of the year at Petersburg 1E, 1988 to 2026. The record is 196.7 mm (7.7 in) in 2008, marked on the chart; the median year is 101.8 mm (4.0 in). 0501001502001990200020102020Record: 196.7 mm (7.7 in) in 2008
The wettest five days of the year at Petersburg 1E, 1988 to 2026. The record is 196.7 mm (7.7 in) in 2008, marked on the chart; the median year is 101.8 mm (4.0 in).
Wettest five days (Rx5day) at Petersburg 1E by year
YearWettest five days (Rx5day)
198858.4 mm (2.3 in)
1989122.2 mm (4.8 in)
1990102.4 mm (4.0 in)
1991105.2 mm (4.1 in)
199273.9 mm (2.9 in)
1993114.4 mm (4.5 in)
199495.9 mm (3.8 in)
1995124.9 mm (4.9 in)
1996154.9 mm (6.1 in)
199778.5 mm (3.1 in)
199880.6 mm (3.2 in)
199997.0 mm (3.8 in)
2000116.9 mm (4.6 in)
200173.2 mm (2.9 in)
2002104.3 mm (4.1 in)
2003101.8 mm (4.0 in)
200496.0 mm (3.8 in)
200566.9 mm (2.6 in)
2006101.4 mm (4.0 in)
200765.8 mm (2.6 in)
2008196.7 mm (7.7 in)
2009102.9 mm (4.1 in)
201080.8 mm (3.2 in)
201114.7 mm (0.6 in)
2012102.2 mm (4.0 in)
201397.0 mm (3.8 in)
201487.4 mm (3.4 in)
2015120.4 mm (4.7 in)
201672.4 mm (2.9 in)
2017127.5 mm (5.0 in)
2018117.6 mm (4.6 in)
2019126.7 mm (5.0 in)
2020106.7 mm (4.2 in)
2021118.7 mm (4.7 in)
2022108.2 mm (4.3 in)
202369.8 mm (2.7 in)
202492.0 mm (3.6 in)
202570.1 mm (2.8 in)
2026112.0 mm (4.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Petersburg 1E by year The longest dry spell of the year at Petersburg 1E, 1988 to 2026. The record is 43 days in 2010, marked on the chart; the median year is 20 days. 010203040501990200020102020Record: 43 days in 2010
The longest dry spell of the year at Petersburg 1E, 1988 to 2026. The record is 43 days in 2010, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Petersburg 1E by year
YearLongest dry spell (CDD)
198822 days
198921 days
199016 days
199118 days
199220 days
199321 days
199420 days
199525 days
199626 days
199716 days
199819 days
199921 days
200013 days
200116 days
200225 days
200316 days
200421 days
200520 days
200634 days
200719 days
200822 days
200929 days
201043 days
20115 days
201218 days
201323 days
201411 days
201520 days
201619 days
201720 days
201819 days
201913 days
202015 days
202116 days
202217 days
202321 days
202419 days
202532 days
202620 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, 1990 to 2025

A day with at least 70.4 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 114.6 mm (4.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Petersburg 1E: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years70.4 mm (2.8 in)
5 years87.1 mm (3.4 in)
10 years95.8 mm (3.8 in)
25 years104.7 mm (4.1 in)
50 years110.1 mm (4.3 in)Longer than the 30 years of record
100 years114.6 mm (4.5 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 1990 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: 112.5 mm (4.4 in) in 2008; 111.8 mm (4.4 in) in 1996; 96.8 mm (3.8 in) in 2018.

Download the Data

  • Data for Petersburg 1E standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Petersburg 1E 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 (2026-10-14).