Winchester Weather Records (USC00119331)

Record envelope, standing records and threshold days for Winchester (USC00119331), Illinois, United States, with 119 years of record.

Key Facts for Winchester

Winchester (USC00119331) is a weather station in Illinois, United States at 39.63 latitude and -90.45 longitude, 168 m (551 ft) above sea level.
The station reports from 1897 to 2015, 119 years of record.
1,464 records set at Winchester 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, 39.63 latitude, -90.45 longitude.
Elevation: 168 m (551 ft).
Period of record: 1897 to 2015, 119 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Winchester. 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 Winchester, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.7 C (71.1 F)	-30.6 C (-23.1 F)	n/a	n/a
Feb	23.9 C (75.0 F)	-31.7 C (-25.1 F)	n/a	n/a
Mar	28.3 C (82.9 F)	-21.1 C (-6.0 F)	n/a	n/a
Apr	32.8 C (91.0 F)	-6.7 C (19.9 F)	n/a	n/a
May	33.9 C (93.0 F)	-1.7 C (28.9 F)	n/a	n/a
Jun	39.4 C (102.9 F)	6.7 C (44.1 F)	n/a	n/a
Jul	42.8 C (109.0 F)	9.4 C (48.9 F)	n/a	n/a
Aug	40.0 C (104.0 F)	6.7 C (44.1 F)	n/a	n/a
Sep	39.4 C (102.9 F)	-5.0 C (23.0 F)	n/a	n/a
Oct	34.4 C (93.9 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	27.2 C (81.0 F)	-12.2 C (10.0 F)	n/a	n/a
Dec	23.3 C (73.9 F)	-26.1 C (-15.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Winchester still stand. 1901 holds the most, with 97.

Standing records at Winchester by the year they were set
Year set	Standing records
1897	1
1899	93
1900	63
1901	97
1902	54
1903	65
1904	51
1905	59
1906	6
1998	37
1999	58
2000	79
2001	50
2002	52
2003	53
2004	65
2005	59
2006	82
2007	79
2008	47
2009	47
2010	36
2011	58
2012	81
2013	55
2014	31
2015	6

Wettest Day of Each Month

Sep: 111.8 mm (4.4 in)

The wettest day on record for each calendar month at Winchester. The most was 111.8 mm (4.4 in) on 1 September 2012.

Record daily precipitation for each month at Winchester
Month	Record daily precipitation (mm)	Date
Jan	82.6 mm (3.3 in)	8 January 2008
Feb	50.8 mm (2.0 in)	28 February 1900
Mar	54.1 mm (2.1 in)	5 March 2011
Apr	68.6 mm (2.7 in)	30 April 2012
May	59.4 mm (2.3 in)	17 May 2010
Jun	96.0 mm (3.8 in)	6 June 2001
Jul	87.9 mm (3.5 in)	20 July 2010
Aug	99.1 mm (3.9 in)	14 August 1898
Sep	111.8 mm (4.4 in)	1 September 2012
Oct	66.5 mm (2.6 in)	30 October 2009
Nov	63.0 mm (2.5 in)	17 November 2009
Dec	43.9 mm (1.7 in)	18 December 2002

Period of Record Coverage

1897 to 2015

27 years of record at Winchester, 1897 to 2015. 7 years have data for under 90 percent of days and are left out of rankings: 1897, 1902, 1906, 1998, 2002, 2014, 2015.

Days with data per year at Winchester
Year	Days with data	Share of year	Complete
1897	2	1%	No
1899	338	93%	Yes
1900	329	90%	Yes
1901	356	98%	Yes
1902	327	90%	No
1903	354	97%	Yes
1904	353	96%	Yes
1905	355	97%	Yes
1906	51	14%	No
1998	275	75%	No
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	303	83%	No
2003	357	98%	Yes
2004	362	99%	Yes
2005	359	98%	Yes
2006	360	99%	Yes
2007	356	98%	Yes
2008	354	97%	Yes
2009	333	91%	Yes
2010	352	96%	Yes
2011	360	99%	Yes
2012	354	97%	Yes
2013	329	90%	Yes
2014	199	55%	No
2015	38	10%	No

Latest Records

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

Climate Trend

18 complete years, 1899 to 2012

One stripe for each of 18 complete years at Winchester, 1899 to 2012. Blue stripes are years cooler than the station's own mean of 11.7 C (53.1 F); red stripes are warmer. The coolest year was 1904, at 10.4 C (50.8 F), and the warmest was 2012, at 13.4 C (56.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).

Annual mean temperature at Winchester as warming stripes, 1899 to 2012
Year	Annual mean temperature	Difference from the station mean
1899	11.4 C	-0.35 C
1901	12.0 C	+0.23 C
1903	11.3 C	-0.42 C
1904	10.4 C	-1.29 C
1905	11.0 C	-0.70 C
1999	12.3 C	+0.56 C
2000	11.7 C	-0.01 C
2001	12.2 C	+0.51 C
2003	11.1 C	-0.67 C
2004	11.7 C	-0.07 C
2005	12.3 C	+0.61 C
2006	12.6 C	+0.82 C
2007	12.4 C	+0.71 C
2008	10.8 C	-0.98 C
2009	11.0 C	-0.69 C
2010	11.6 C	-0.14 C
2011	11.9 C	+0.19 C
2012	13.4 C	+1.70 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

1897 to 2015

Yearly extremes at Winchester: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	42.8 C (109.0 F)	1901	36.7 C (98.1 F)	27
Coldest night (TNn)	-31.7 C (-25.1 F)	1905	-21.7 C (-7.1 F)	27
Wettest day (Rx1day)	111.8 mm (4.4 in)	2012	56.6 mm (2.2 in)	29
Wettest five days (Rx5day)	155.7 mm (6.1 in)	2008	85.9 mm (3.4 in)	29
Longest dry spell (CDD)	37 days	1999	21 days	29

Hottest day (TXx)

The hottest day of the year at Winchester, 1897 to 2015. The record is 42.8 C (109.0 F) in 1901, marked on the chart; the median year is 36.7 C (98.1 F).

Hottest day (TXx) at Winchester by year
Year	Hottest day (TXx)
1897	32.2 C (90.0 F)
1898	n/a
1899	37.2 C (99.0 F)
1900	37.8 C (100.0 F)
1901	42.8 C (109.0 F)
1902	35.0 C (95.0 F)
1903	36.1 C (97.0 F)
1904	32.8 C (91.0 F)
1905	36.7 C (98.1 F)
1906	21.1 C (70.0 F)
1997	n/a
1998	37.2 C (99.0 F)
1999	39.4 C (102.9 F)
2000	37.2 C (99.0 F)
2001	37.2 C (99.0 F)
2002	36.1 C (97.0 F)
2003	37.2 C (99.0 F)
2004	34.4 C (93.9 F)
2005	40.0 C (104.0 F)
2006	38.3 C (100.9 F)
2007	40.0 C (104.0 F)
2008	35.6 C (96.1 F)
2009	35.6 C (96.1 F)
2010	36.7 C (98.1 F)
2011	39.4 C (102.9 F)
2012	40.6 C (105.1 F)
2013	36.7 C (98.1 F)
2014	33.3 C (91.9 F)
2015	23.9 C (75.0 F)

Coldest night (TNn)

The coldest night of the year at Winchester, 1897 to 2015. The record is -31.7 C (-25.1 F) in 1905, marked on the chart; the median year is -21.7 C (-7.1 F).

Coldest night (TNn) at Winchester by year
Year	Coldest night (TNn)
1897	11.1 C (52.0 F)
1898	n/a
1899	-30.0 C (-22.0 F)
1900	-18.9 C (-2.0 F)
1901	-26.1 C (-15.0 F)
1902	-22.2 C (-8.0 F)
1903	-25.0 C (-13.0 F)
1904	-25.6 C (-14.1 F)
1905	-31.7 C (-25.1 F)
1906	-16.7 C (1.9 F)
1997	n/a
1998	-16.7 C (1.9 F)
1999	-30.6 C (-23.1 F)
2000	-18.9 C (-2.0 F)
2001	-21.7 C (-7.1 F)
2002	-14.4 C (6.1 F)
2003	-19.4 C (-2.9 F)
2004	-25.0 C (-13.0 F)
2005	-17.2 C (1.0 F)
2006	-17.8 C (0.0 F)
2007	-22.2 C (-8.0 F)
2008	-18.3 C (-0.9 F)
2009	-22.2 C (-8.0 F)
2010	-24.4 C (-11.9 F)
2011	-23.3 C (-9.9 F)
2012	-15.6 C (3.9 F)
2013	-17.2 C (1.0 F)
2014	-25.0 C (-13.0 F)
2015	-20.0 C (-4.0 F)

Wettest day (Rx1day)

The wettest day of the year at Winchester, 1897 to 2015. The record is 111.8 mm (4.4 in) in 2012, marked on the chart; the median year is 56.6 mm (2.2 in).

Wettest day (Rx1day) at Winchester by year
Year	Wettest day (Rx1day)
1897	30.5 mm (1.2 in)
1898	99.1 mm (3.9 in)
1899	57.2 mm (2.3 in)
1900	55.9 mm (2.2 in)
1901	51.3 mm (2.0 in)
1902	57.2 mm (2.3 in)
1903	50.5 mm (2.0 in)
1904	76.2 mm (3.0 in)
1905	44.5 mm (1.8 in)
1906	19.6 mm (0.8 in)
1997	43.9 mm (1.7 in)
1998	58.9 mm (2.3 in)
1999	43.2 mm (1.7 in)
2000	70.6 mm (2.8 in)
2001	96.0 mm (3.8 in)
2002	55.9 mm (2.2 in)
2003	84.8 mm (3.3 in)
2004	54.6 mm (2.1 in)
2005	48.5 mm (1.9 in)
2006	43.9 mm (1.7 in)
2007	35.1 mm (1.4 in)
2008	105.4 mm (4.1 in)
2009	76.7 mm (3.0 in)
2010	87.9 mm (3.5 in)
2011	78.2 mm (3.1 in)
2012	111.8 mm (4.4 in)
2013	56.6 mm (2.2 in)
2014	89.9 mm (3.5 in)
2015	11.9 mm (0.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Winchester, 1897 to 2015. The record is 155.7 mm (6.1 in) in 2008, marked on the chart; the median year is 85.9 mm (3.4 in).

Wettest five days (Rx5day) at Winchester by year
Year	Wettest five days (Rx5day)
1897	41.7 mm (1.6 in)
1898	103.7 mm (4.1 in)
1899	79.5 mm (3.1 in)
1900	89.8 mm (3.5 in)
1901	58.1 mm (2.3 in)
1902	66.1 mm (2.6 in)
1903	67.9 mm (2.7 in)
1904	112.0 mm (4.4 in)
1905	76.2 mm (3.0 in)
1906	35.1 mm (1.4 in)
1997	60.5 mm (2.4 in)
1998	116.3 mm (4.6 in)
1999	63.3 mm (2.5 in)
2000	129.2 mm (5.1 in)
2001	146.8 mm (5.8 in)
2002	85.9 mm (3.4 in)
2003	107.1 mm (4.2 in)
2004	64.0 mm (2.5 in)
2005	68.1 mm (2.7 in)
2006	77.7 mm (3.1 in)
2007	61.9 mm (2.4 in)
2008	155.7 mm (6.1 in)
2009	111.0 mm (4.4 in)
2010	139.5 mm (5.5 in)
2011	109.5 mm (4.3 in)
2012	117.6 mm (4.6 in)
2013	106.7 mm (4.2 in)
2014	109.2 mm (4.3 in)
2015	12.0 mm (0.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Winchester, 1897 to 2015. The record is 37 days in 1999, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at Winchester by year
Year	Longest dry spell (CDD)
1897	19 days
1898	15 days
1899	17 days
1900	27 days
1901	23 days
1902	19 days
1903	27 days
1904	36 days
1905	20 days
1906	12 days
1997	21 days
1998	19 days
1999	37 days
2000	18 days
2001	16 days
2002	32 days
2003	25 days
2004	21 days
2005	20 days
2006	35 days
2007	22 days
2008	18 days
2009	24 days
2010	27 days
2011	23 days
2012	31 days
2013	25 days
2014	10 days
2015	7 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.

Download the Data

Data for Winchester standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Winchester 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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