Built 2026-10-18 (18 October 2026)

Perry 6 NW Weather Records (USC00116738)

Record envelope, standing records and threshold days for Perry 6 NW (USC00116738), Illinois, United States, with 35 years of record.

Key Facts for Perry 6 NW

  • Perry 6 NW (USC00116738) is a weather station in Illinois, United States at 39.81 latitude and -90.82 longitude, 198 m (650 ft) above sea level.
  • The station reports from 1992 to 2026, 35 years of record.
  • 1,464 records set at Perry 6 NW still stand.
  • Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

  • Location: Illinois, United States, 39.81 latitude, -90.82 longitude.
  • Elevation: 198 m (650 ft).
  • Period of record: 1992 to 2026, 35 years.
  • Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Perry 6 NW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Perry 6 NW. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Perry 6 NW. 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 Perry 6 NW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.7 C (71.1 F)-32.2 C (-26.0 F)n/an/a
Feb26.1 C (79.0 F)-29.4 C (-20.9 F)n/an/a
Mar28.3 C (82.9 F)-22.2 C (-8.0 F)n/an/a
Apr32.2 C (90.0 F)-11.1 C (12.0 F)26.7 C (80.1 F)n/a
May35.0 C (95.0 F)-2.2 C (28.0 F)n/an/a
Jun40.0 C (104.0 F)3.9 C (39.0 F)32.2 C (90.0 F)n/a
Jul41.1 C (106.0 F)7.8 C (46.0 F)33.9 C (93.0 F)n/a
Aug40.0 C (104.0 F)5.6 C (42.1 F)35.0 C (95.0 F)n/a
Sep39.4 C (102.9 F)-4.4 C (24.1 F)31.1 C (88.0 F)n/a
Oct33.9 C (93.0 F)-7.2 C (19.0 F)32.2 C (90.0 F)n/a
Nov28.9 C (84.0 F)-12.8 C (9.0 F)n/an/a
Dec23.3 C (73.9 F)-23.3 C (-9.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Perry 6 NW by the year they were set 1,464 records at Perry 6 NW still stand. 2012 holds the most, with 81. 02550751001992: 161993: 501994: 461995: 511996: 741997: 621998: 471999: 522000: 692001: 422002: 502003: 442004: 502005: 442006: 622007: 592008: 392009: 442010: 332011: 442012: 812013: 452014: 502015: 472016: 382017: 522018: 432020: 162021: 442022: 442023: 182024: 62025: 2199219962000200420082012201620212025
1,464 records at Perry 6 NW still stand. 2012 holds the most, with 81.
Standing records at Perry 6 NW by the year they were set
Year setStanding records
199216
199350
199446
199551
199674
199762
199847
199952
200069
200142
200250
200344
200450
200544
200662
200759
200839
200944
201033
201144
201281
201345
201450
201547
201638
201752
201843
202016
202144
202244
202318
20246
20252

Wettest Day of Each Month

Sep: 130.6 mm (5.1 in)
Record daily precipitation for each month at Perry 6 NW The wettest day on record for each calendar month at Perry 6 NW. The most was 130.6 mm (5.1 in) on 10 September 2014. 050100150 Jan: 58.9 mm (2.3 in), 31 January 2002 Jan Feb: 59.4 mm (2.3 in), 23 February 2023 Feb Mar: 83.8 mm (3.3 in), 18 March 2021 Mar Apr: 88.9 mm (3.5 in), 30 April 2017 Apr May: 81.8 mm (3.2 in), 20 May 2025 May Jun: 96.8 mm (3.8 in), 14 June 2011 Jun Jul: 101.6 mm (4.0 in), 20 July 2010 Jul Aug: 75.2 mm (3.0 in), 26 August 2004 Aug Sep: 130.6 mm (5.1 in), 10 September 2014 Sep Oct: 81.8 mm (3.2 in), 8 October 2021 Oct Nov: 72.1 mm (2.8 in), 17 November 2009 Nov Dec: 51.6 mm (2.0 in), 10 December 2003 Dec
The wettest day on record for each calendar month at Perry 6 NW. The most was 130.6 mm (5.1 in) on 10 September 2014.
Record daily precipitation for each month at Perry 6 NW
MonthRecord daily precipitation (mm)Date
Jan58.9 mm (2.3 in)31 January 2002
Feb59.4 mm (2.3 in)23 February 2023
Mar83.8 mm (3.3 in)18 March 2021
Apr88.9 mm (3.5 in)30 April 2017
May81.8 mm (3.2 in)20 May 2025
Jun96.8 mm (3.8 in)14 June 2011
Jul101.6 mm (4.0 in)20 July 2010
Aug75.2 mm (3.0 in)26 August 2004
Sep130.6 mm (5.1 in)10 September 2014
Oct81.8 mm (3.2 in)8 October 2021
Nov72.1 mm (2.8 in)17 November 2009
Dec51.6 mm (2.0 in)10 December 2003

Period of Record Coverage

1992 to 2025
Days with data per year at Perry 6 NW 33 years of record at Perry 6 NW, 1992 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1992, 2014, 2018, 2020, 2023, 2024, 2025. 1992: 91 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: 364 of 365 days2000: 366 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 362 of 365 days2007: 363 of 365 days2008: 361 of 366 days2009: 356 of 365 days2010: 355 of 365 days2011: 365 of 365 days2012: 350 of 366 days2013: 335 of 365 days2014: 308 of 365 days2015: 351 of 365 days2016: 365 of 366 days2017: 363 of 365 days2018: 175 of 365 days2020: 160 of 366 days2021: 356 of 365 days2022: 337 of 365 days2023: 136 of 365 days2024: 32 of 366 days2025: 77 of 365 days1995200020052010201520202025
33 years of record at Perry 6 NW, 1992 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 1992, 2014, 2018, 2020, 2023, 2024, 2025.
Days with data per year at Perry 6 NW
YearDays with dataShare of yearComplete
19929125%No
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999364100%Yes
2000366100%Yes
2001364100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
200636299%Yes
200736399%Yes
200836199%Yes
200935698%Yes
201035597%Yes
2011365100%Yes
201235096%Yes
201333592%Yes
201430884%No
201535196%Yes
2016365100%Yes
201736399%Yes
201817548%No
202016044%No
202135698%Yes
202233792%Yes
202313637%No
2024329%No
20257721%No

Latest Records

0

No records were set at this station in the latest data.

Climate Trend

25 complete years, 1993 to 2017
Annual mean temperature at Perry 6 NW as warming stripes, 1993 to 2017 One stripe for each of 25 complete years at Perry 6 NW, 1993 to 2017. Blue stripes are years cooler than the station's own mean of 11.5 C (52.7 F); red stripes are warmer. The coolest year was 1993, at 9.8 C (49.6 F), and the warmest was 2012, at 13.2 C (55.8 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1993: 9.8 C, -1.7 C from the station mean1994: 10.7 C, -0.8 C from the station mean1995: 10.6 C, -0.8 C from the station mean1996: 9.9 C, -1.6 C from the station mean1997: 10.5 C, -1.0 C from the station mean1998: 12.6 C, +1.1 C from the station mean1999: 11.9 C, +0.4 C from the station mean2000: 11.5 C, 0.0 C from the station mean2001: 11.9 C, +0.4 C from the station mean2002: 11.7 C, +0.2 C from the station mean2003: 11.1 C, -0.4 C from the station mean2004: 11.3 C, -0.2 C from the station mean2005: 12.3 C, +0.8 C from the station mean2006: 12.3 C, +0.8 C from the station mean2007: 12.0 C, +0.5 C from the station mean2008: 10.5 C, -1.0 C from the station mean2009: 11.1 C, -0.4 C from the station mean2010: 11.7 C, +0.2 C from the station mean2011: 11.7 C, +0.2 C from the station mean2012: 13.2 C, +1.8 C from the station mean2013: 10.8 C, -0.7 C from the station mean2014: 10.1 C, -1.4 C from the station mean2015: 12.2 C, +0.7 C from the station mean2016: 13.0 C, +1.5 C from the station mean2017: 12.8 C, +1.3 C from the station mean199319961998200020022004200620082010201220142016
One stripe for each of 25 complete years at Perry 6 NW, 1993 to 2017. Blue stripes are years cooler than the station's own mean of 11.5 C (52.7 F); red stripes are warmer. The coolest year was 1993, at 9.8 C (49.6 F), and the warmest was 2012, at 13.2 C (55.8 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Perry 6 NW as warming stripes, 1993 to 2017
YearAnnual mean temperatureDifference from the station mean
19939.8 C-1.70 C
199410.7 C-0.76 C
199510.6 C-0.85 C
19969.9 C-1.62 C
199710.5 C-0.99 C
199812.6 C+1.11 C
199911.9 C+0.38 C
200011.5 C-0.01 C
200111.9 C+0.44 C
200211.7 C+0.18 C
200311.1 C-0.36 C
200411.3 C-0.16 C
200512.3 C+0.81 C
200612.3 C+0.77 C
200712.0 C+0.47 C
200810.5 C-0.99 C
200911.1 C-0.38 C
201011.7 C+0.24 C
201111.7 C+0.22 C
201213.2 C+1.75 C
201310.8 C-0.70 C
201410.1 C-1.36 C
201512.2 C+0.70 C
201613.0 C+1.52 C
201712.8 C+1.29 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

1992 to 2026
Yearly extremes at Perry 6 NW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)201236.1 C (97.0 F)34
Coldest night (TNn)-32.2 C (-26.0 F)1999-22.2 C (-8.0 F)33
Wettest day (Rx1day)130.6 mm (5.1 in)201469.8 mm (2.7 in)34
Wettest five days (Rx5day)153.2 mm (6.0 in)202197.4 mm (3.8 in)34
Longest dry spell (CDD)33 days202519 days34

Hottest day (TXx)

Hottest day (TXx) at Perry 6 NW by year The hottest day of the year at Perry 6 NW, 1992 to 2026. The record is 41.1 C (106.0 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F). 3032.53537.54042.5200020102020Record: 41.1 C (106.0 F) in 2012
The hottest day of the year at Perry 6 NW, 1992 to 2026. The record is 41.1 C (106.0 F) in 2012, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Perry 6 NW by year
YearHottest day (TXx)
199231.7 C (89.1 F)
199335.0 C (95.0 F)
199435.0 C (95.0 F)
199536.7 C (98.1 F)
199636.1 C (97.0 F)
199737.2 C (99.0 F)
199835.6 C (96.1 F)
199938.3 C (100.9 F)
200036.1 C (97.0 F)
200136.7 C (98.1 F)
200235.6 C (96.1 F)
200337.2 C (99.0 F)
200433.9 C (93.0 F)
200538.9 C (102.0 F)
200638.3 C (100.9 F)
200740.0 C (104.0 F)
200835.6 C (96.1 F)
200937.8 C (100.0 F)
201036.1 C (97.0 F)
201139.4 C (102.9 F)
201241.1 C (106.0 F)
201338.3 C (100.9 F)
201435.0 C (95.0 F)
201535.0 C (95.0 F)
201635.6 C (96.1 F)
201736.7 C (98.1 F)
201837.2 C (99.0 F)
202034.4 C (93.9 F)
202135.0 C (95.0 F)
202236.1 C (97.0 F)
202337.8 C (100.0 F)
202433.3 C (91.9 F)
202535.0 C (95.0 F)
202633.3 C (91.9 F)

Coldest night (TNn)

Coldest night (TNn) at Perry 6 NW by year The coldest night of the year at Perry 6 NW, 1992 to 2026. The record is -32.2 C (-26.0 F) in 1999, marked on the chart; the median year is -22.2 C (-8.0 F). -40-2002040200020102020Record: -32.2 C (-26.0 F) in 1999
The coldest night of the year at Perry 6 NW, 1992 to 2026. The record is -32.2 C (-26.0 F) in 1999, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Perry 6 NW by year
YearColdest night (TNn)
1992-9.4 C (15.1 F)
1993-22.2 C (-8.0 F)
1994-27.2 C (-17.0 F)
1995-20.6 C (-5.1 F)
1996-29.4 C (-20.9 F)
1997-23.3 C (-9.9 F)
1998-19.4 C (-2.9 F)
1999-32.2 C (-26.0 F)
2000-22.2 C (-8.0 F)
2001-22.8 C (-9.0 F)
2002-19.4 C (-2.9 F)
2003-21.1 C (-6.0 F)
2004-26.1 C (-15.0 F)
2005-18.9 C (-2.0 F)
2006-18.9 C (-2.0 F)
2007-20.6 C (-5.1 F)
2008-19.4 C (-2.9 F)
2009-23.3 C (-9.9 F)
2010-25.0 C (-13.0 F)
2011-23.3 C (-9.9 F)
2012-17.2 C (1.0 F)
2013-18.3 C (-0.9 F)
2014-25.0 C (-13.0 F)
2015-22.2 C (-8.0 F)
2016-23.3 C (-9.9 F)
2017-22.8 C (-9.0 F)
2018-25.6 C (-14.1 F)
2020-15.6 C (3.9 F)
2021-24.4 C (-11.9 F)
2022-23.3 C (-9.9 F)
2023-15.6 C (3.9 F)
20240.6 C (33.1 F)
2025n/a
202621.1 C (70.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Perry 6 NW by year The wettest day of the year at Perry 6 NW, 1992 to 2026. The record is 130.6 mm (5.1 in) in 2014, marked on the chart; the median year is 69.8 mm (2.7 in). 255075100125150200020102020Record: 130.6 mm (5.1 in) in 2014
The wettest day of the year at Perry 6 NW, 1992 to 2026. The record is 130.6 mm (5.1 in) in 2014, marked on the chart; the median year is 69.8 mm (2.7 in).
Wettest day (Rx1day) at Perry 6 NW by year
YearWettest day (Rx1day)
199240.6 mm (1.6 in)
199390.7 mm (3.6 in)
199448.8 mm (1.9 in)
199568.6 mm (2.7 in)
199655.6 mm (2.2 in)
199747.0 mm (1.9 in)
199853.8 mm (2.1 in)
199953.8 mm (2.1 in)
200053.6 mm (2.1 in)
200161.5 mm (2.4 in)
200294.2 mm (3.7 in)
2003128.3 mm (5.1 in)
200475.2 mm (3.0 in)
200543.2 mm (1.7 in)
200670.9 mm (2.8 in)
200752.6 mm (2.1 in)
2008112.3 mm (4.4 in)
200972.1 mm (2.8 in)
2010101.6 mm (4.0 in)
201196.8 mm (3.8 in)
2012101.6 mm (4.0 in)
201348.5 mm (1.9 in)
2014130.6 mm (5.1 in)
201575.2 mm (3.0 in)
201635.6 mm (1.4 in)
201788.9 mm (3.5 in)
201843.7 mm (1.7 in)
202043.7 mm (1.7 in)
202183.8 mm (3.3 in)
202275.4 mm (3.0 in)
202359.4 mm (2.3 in)
202472.4 mm (2.9 in)
202581.8 mm (3.2 in)
202649.8 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Perry 6 NW by year The wettest five days of the year at Perry 6 NW, 1992 to 2026. The record is 153.2 mm (6.0 in) in 2021, marked on the chart; the median year is 97.4 mm (3.8 in). 5075100125150175200020102020Record: 153.2 mm (6.0 in) in 2021
The wettest five days of the year at Perry 6 NW, 1992 to 2026. The record is 153.2 mm (6.0 in) in 2021, marked on the chart; the median year is 97.4 mm (3.8 in).
Wettest five days (Rx5day) at Perry 6 NW by year
YearWettest five days (Rx5day)
199284.1 mm (3.3 in)
1993135.7 mm (5.3 in)
1994101.1 mm (4.0 in)
199592.9 mm (3.7 in)
199693.7 mm (3.7 in)
199755.9 mm (2.2 in)
199890.0 mm (3.5 in)
199967.3 mm (2.6 in)
200071.6 mm (2.8 in)
2001103.2 mm (4.1 in)
2002108.9 mm (4.3 in)
2003149.5 mm (5.9 in)
2004125.2 mm (4.9 in)
200583.0 mm (3.3 in)
2006109.8 mm (4.3 in)
200772.9 mm (2.9 in)
2008149.1 mm (5.9 in)
2009122.1 mm (4.8 in)
2010123.5 mm (4.9 in)
201154.4 mm (2.1 in)
2012107.7 mm (4.2 in)
201385.4 mm (3.4 in)
2014136.2 mm (5.4 in)
2015117.9 mm (4.6 in)
201668.3 mm (2.7 in)
2017127.0 mm (5.0 in)
201877.3 mm (3.0 in)
2020133.9 mm (5.3 in)
2021153.2 mm (6.0 in)
202280.2 mm (3.2 in)
202362.0 mm (2.4 in)
2024121.3 mm (4.8 in)
202582.6 mm (3.3 in)
202678.8 mm (3.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Perry 6 NW by year The longest dry spell of the year at Perry 6 NW, 1992 to 2026. The record is 33 days in 2025, marked on the chart; the median year is 19 days. 010203040200020102020Record: 33 days in 2025
The longest dry spell of the year at Perry 6 NW, 1992 to 2026. The record is 33 days in 2025, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Perry 6 NW by year
YearLongest dry spell (CDD)
199210 days
199322 days
199419 days
199525 days
199620 days
199725 days
199819 days
199925 days
200018 days
200116 days
200228 days
200312 days
200422 days
200527 days
200618 days
200719 days
200814 days
200924 days
201020 days
20113 days
201216 days
201314 days
201413 days
201514 days
201626 days
201721 days
201818 days
202019 days
202115 days
202218 days
202313 days
202420 days
202533 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.

Frost Dates and Growing Season

25 years with a frost

Across 25 years with a frost, the median last spring frost at Perry 6 NW falls on 18 April and the median first autumn frost on 10 October, which leaves a median of 175 days between them.

Fitted over all years, the growing season changes by +8.2 days per decade at this station.

Frost dates and growing season at Perry 6 NW
MeasureMedian, all yearsEarliest periodRecent period (1993 to 2017)Recent against earliestFitted trend
Last spring frost18 Apriln/a18 Apriln/a-3.8 days per decade
First autumn frost10 Octobern/a10 Octobern/a+4.4 days per decade
Growing days175 daysn/a175 daysn/a+8.2 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.

Download the Data

  • Data for Perry 6 NW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Perry 6 NW 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).