Chalmers 5 W Weather Records (USC00121417)

Record envelope, standing records and threshold days for Chalmers 5 W (USC00121417), Indiana, United States, with 36 years of record.

Key Facts for Chalmers 5 W

Chalmers 5 W (USC00121417) is a weather station in Indiana, United States at 40.67 latitude and -86.95 longitude, 220 m (720 ft) above sea level.
The station reports from 1991 to 2026, 36 years of record.
1,464 records set at Chalmers 5 W still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Chalmers 5 W set a daily record precipitation of 20.8 mm (0.8 in) on 2 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Indiana, United States, 40.67 latitude, -86.95 longitude.
Elevation: 220 m (720 ft).
Period of record: 1991 to 2026, 36 years.
Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

37 days at or beyond a record

The band shows the record high and record low for each calendar day at Chalmers 5 W. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Chalmers 5 W, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.8 C (64.0 F)	-30.0 C (-22.0 F)	17.8 C (64.0 F)	-22.2 C (-8.0 F)
Feb	21.7 C (71.1 F)	-28.9 C (-20.0 F)	20.0 C (68.0 F)	-16.1 C (3.0 F)
Mar	29.4 C (84.9 F)	-21.7 C (-7.1 F)	28.9 C (84.0 F)	-8.9 C (16.0 F)
Apr	29.4 C (84.9 F)	-9.4 C (15.1 F)	28.9 C (84.0 F)	-1.7 C (28.9 F)
May	35.6 C (96.1 F)	-2.8 C (27.0 F)	30.0 C (86.0 F)	0.6 C (33.1 F)
Jun	38.3 C (100.9 F)	6.7 C (44.1 F)	32.2 C (90.0 F)	10.6 C (51.1 F)
Jul	38.9 C (102.0 F)	8.9 C (48.0 F)	33.9 C (93.0 F)	10.0 C (50.0 F)
Aug	36.7 C (98.1 F)	6.1 C (43.0 F)	31.7 C (89.1 F)	11.7 C (53.1 F)
Sep	36.7 C (98.1 F)	2.2 C (36.0 F)	35.6 C (96.1 F)	7.2 C (45.0 F)
Oct	33.9 C (93.0 F)	-4.4 C (24.1 F)	31.1 C (88.0 F)	6.7 C (44.1 F)
Nov	26.1 C (79.0 F)	-16.1 C (3.0 F)	n/a	n/a
Dec	20.0 C (68.0 F)	-23.9 C (-11.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chalmers 5 W still stand. 2012 holds the most, with 134.

Standing records at Chalmers 5 W by the year they were set
Year set	Standing records
2008	28
2009	73
2010	76
2011	82
2012	134
2013	91
2014	104
2015	95
2016	67
2017	101
2018	93
2019	71
2020	53
2021	66
2022	53
2023	71
2024	79
2025	72
2026	55

Wettest Day of Each Month

Aug: 99.8 mm (3.9 in)

The wettest day on record for each calendar month at Chalmers 5 W. The most was 99.8 mm (3.9 in) on 16 August 2016.

Record daily precipitation for each month at Chalmers 5 W
Month	Record daily precipitation (mm)	Date
Jan	60.5 mm (2.4 in)	11 January 2020
Feb	95.3 mm (3.8 in)	21 February 2018
Mar	50.5 mm (2.0 in)	23 March 2007
Apr	77.7 mm (3.1 in)	12 April 1994
May	66.8 mm (2.6 in)	31 May 2018
Jun	81.3 mm (3.2 in)	22 June 2010
Jul	99.1 mm (3.9 in)	10 July 2024
Aug	99.8 mm (3.9 in)	16 August 2016
Sep	73.9 mm (2.9 in)	19 September 2013
Oct	66.3 mm (2.6 in)	14 October 2001
Nov	49.5 mm (1.9 in)	22 November 2007
Dec	49.5 mm (1.9 in)	27 December 2015

Period of Record Coverage

2008 to 2026

19 years of record at Chalmers 5 W, 2008 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2008, 2020, 2026.

Days with data per year at Chalmers 5 W
Year	Days with data	Share of year	Complete
2008	153	42%	No
2009	365	100%	Yes
2010	365	100%	Yes
2011	362	99%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	365	100%	Yes
2015	354	97%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	365	100%	Yes
2020	314	86%	No
2021	363	99%	Yes
2022	365	100%	Yes
2023	365	100%	Yes
2024	366	100%	Yes
2025	365	100%	Yes
2026	285	78%	No

Latest Records

Latest records at Chalmers 5 W
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 October 2026	Chalmers 5 W, US	daily rain (Provisional)	20.8 mm (0.8 in)	1.7 mm (0.07 in)	16 years	9 of 100 (Routine)
18 September 2026	Chalmers 5 W, US	daily rain (Provisional)	29.7 mm (1.2 in)	24.1 mm (0.9 in)	13 years	27 of 100 (Routine)
16 September 2026	Chalmers 5 W, US	daily rain (Provisional)	18.3 mm (0.7 in)	6.6 mm (0.26 in)	12 years	11 of 100 (Routine)
14 August 2026	Chalmers 5 W, US	daily rain	19.1 mm (0.8 in)	2.6 mm (0.10 in)	4 years	5 of 100 (Routine)
2 August 2026	Chalmers 5 W, US	daily rain	66.0 mm (2.6 in)	32.5 mm (1.3 in)	5 years	26 of 100 (Routine)
11 July 2026	Chalmers 5 W, US	daily rain	55.9 mm (2.2 in)	34.3 mm (1.4 in)	32 years	35 of 100 (Notable)
9 June 2026	Chalmers 5 W, US	daily rain	73.7 mm (2.9 in)	40.7 mm (1.6 in)	16 years	34 of 100 (Routine)
7 June 2026	Chalmers 5 W, US	daily rain	27.9 mm (1.1 in)	5.3 mm (0.21 in)	28 years	14 of 100 (Routine)
27 March 2026	Chalmers 5 W, US	daily rain	25.4 mm (1.0 in)	9.7 mm (0.38 in)	32 years	24 of 100 (Routine)
18 March 2026	Chalmers 5 W, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	3 years	0 of 100 (Routine)
17 March 2026	Chalmers 5 W, US	daily snow depth	5.1 cm (2.0 in)	2.6 cm (1.0 in)	24 years	16 of 100 (Routine)
17 March 2026	Chalmers 5 W, US	daily snowfall	3.8 cm (1.5 in)	1.0 cm (0.4 in)	24 years	12 of 100 (Routine)
16 March 2026	Chalmers 5 W, US	daily rain	17.8 mm (0.7 in)	1.0 mm (0.04 in)	0 years	4 of 100 (Routine)
25 January 2026	Chalmers 5 W, US	daily snowfall (Tie)	7.6 cm (3.0 in)	tie	12 years	1 of 100 (Routine)
31 December 2025	Chalmers 5 W, US	daily snowfall (Tie)	2.5 cm (1.0 in)	tie	27 years	2 of 100 (Routine)
8 December 2025	Chalmers 5 W, US	daily snow depth	7.6 cm (3.0 in)	2.5 cm (1.0 in)	15 years	10 of 100 (Routine)
7 December 2025	Chalmers 5 W, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	22 years	16 of 100 (Routine)
6 December 2025	Chalmers 5 W, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	28 years	22 of 100 (Routine)
5 December 2025	Chalmers 5 W, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	22 years	16 of 100 (Routine)
4 December 2025	Chalmers 5 W, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	20 years	20 of 100 (Routine)

Climate Trend

15 complete years, 2009 to 2025

One stripe for each of 15 complete years at Chalmers 5 W, 2009 to 2025. Blue stripes are years cooler than the station's own mean of 10.5 C (50.8 F); red stripes are warmer. The coolest year was 2014, at 7.9 C (46.2 F), and the warmest was 2024, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.6 C (4.7 F).

Annual mean temperature at Chalmers 5 W as warming stripes, 2009 to 2025
Year	Annual mean temperature	Difference from the station mean
2009	9.4 C	-1.11 C
2010	10.2 C	-0.28 C
2011	10.2 C	-0.25 C
2012	11.7 C	+1.19 C
2013	9.2 C	-1.31 C
2014	7.9 C	-2.55 C
2016	11.0 C	+0.50 C
2017	10.9 C	+0.43 C
2018	9.9 C	-0.59 C
2019	10.1 C	-0.34 C
2021	11.4 C	+0.92 C
2022	10.4 C	-0.09 C
2023	11.9 C	+1.40 C
2024	12.2 C	+1.69 C
2025	10.9 C	+0.41 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

1991 to 2026

Yearly extremes at Chalmers 5 W: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	2012	35.0 C (95.0 F)	19
Coldest night (TNn)	-30.0 C (-22.0 F)	2018	-23.3 C (-9.9 F)	19
Wettest day (Rx1day)	99.8 mm (3.9 in)	2016	64.7 mm (2.5 in)	36
Wettest five days (Rx5day)	199.2 mm (7.8 in)	2003	103.9 mm (4.1 in)	36
Longest dry spell (CDD)	38 days	2015	17 days	36

Hottest day (TXx)

The hottest day of the year at Chalmers 5 W, 1991 to 2026. The record is 38.9 C (102.0 F) in 2012, marked on the chart; the median year is 35.0 C (95.0 F).

Hottest day (TXx) at Chalmers 5 W by year
Year	Hottest day (TXx)
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	33.3 C (91.9 F)
2009	33.9 C (93.0 F)
2010	34.4 C (93.9 F)
2011	37.2 C (99.0 F)
2012	38.9 C (102.0 F)
2013	36.7 C (98.1 F)
2014	32.8 C (91.0 F)
2015	34.4 C (93.9 F)
2016	35.0 C (95.0 F)
2017	35.6 C (96.1 F)
2018	35.6 C (96.1 F)
2019	35.6 C (96.1 F)
2020	34.4 C (93.9 F)
2021	35.0 C (95.0 F)
2022	37.2 C (99.0 F)
2023	33.9 C (93.0 F)
2024	35.0 C (95.0 F)
2025	35.0 C (95.0 F)
2026	35.6 C (96.1 F)

Coldest night (TNn)

The coldest night of the year at Chalmers 5 W, 1991 to 2026. The record is -30.0 C (-22.0 F) in 2018, marked on the chart; the median year is -23.3 C (-9.9 F).

Coldest night (TNn) at Chalmers 5 W by year
Year	Coldest night (TNn)
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	-18.9 C (-2.0 F)
2009	-28.3 C (-18.9 F)
2010	-22.2 C (-8.0 F)
2011	-25.0 C (-13.0 F)
2012	-18.9 C (-2.0 F)
2013	-19.4 C (-2.9 F)
2014	-28.9 C (-20.0 F)
2015	-27.2 C (-17.0 F)
2016	-23.3 C (-9.9 F)
2017	-23.3 C (-9.9 F)
2018	-30.0 C (-22.0 F)
2019	-28.3 C (-18.9 F)
2020	-20.6 C (-5.1 F)
2021	-27.2 C (-17.0 F)
2022	-23.9 C (-11.0 F)
2023	-16.1 C (3.0 F)
2024	-23.9 C (-11.0 F)
2025	-21.7 C (-7.1 F)
2026	-22.2 C (-8.0 F)

Wettest day (Rx1day)

The wettest day of the year at Chalmers 5 W, 1991 to 2026. The record is 99.8 mm (3.9 in) in 2016, marked on the chart; the median year is 64.7 mm (2.5 in).

Wettest day (Rx1day) at Chalmers 5 W by year
Year	Wettest day (Rx1day)
1991	13.5 mm (0.5 in)
1992	46.5 mm (1.8 in)
1993	62.2 mm (2.4 in)
1994	77.7 mm (3.1 in)
1995	57.4 mm (2.3 in)
1996	53.6 mm (2.1 in)
1997	62.7 mm (2.5 in)
1998	57.7 mm (2.3 in)
1999	77.2 mm (3.0 in)
2000	65.3 mm (2.6 in)
2001	66.3 mm (2.6 in)
2002	38.9 mm (1.5 in)
2003	78.7 mm (3.1 in)
2004	79.8 mm (3.1 in)
2005	66.5 mm (2.6 in)
2006	45.7 mm (1.8 in)
2007	50.5 mm (2.0 in)
2008	64.8 mm (2.6 in)
2009	53.6 mm (2.1 in)
2010	81.3 mm (3.2 in)
2011	67.1 mm (2.6 in)
2012	66.5 mm (2.6 in)
2013	73.9 mm (2.9 in)
2014	71.1 mm (2.8 in)
2015	58.4 mm (2.3 in)
2016	99.8 mm (3.9 in)
2017	44.5 mm (1.8 in)
2018	95.3 mm (3.8 in)
2019	40.4 mm (1.6 in)
2020	60.5 mm (2.4 in)
2021	61.0 mm (2.4 in)
2022	97.8 mm (3.9 in)
2023	64.5 mm (2.5 in)
2024	99.1 mm (3.9 in)
2025	30.5 mm (1.2 in)
2026	73.7 mm (2.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chalmers 5 W, 1991 to 2026. The record is 199.2 mm (7.8 in) in 2003, marked on the chart; the median year is 103.9 mm (4.1 in).

Wettest five days (Rx5day) at Chalmers 5 W by year
Year	Wettest five days (Rx5day)
1991	13.5 mm (0.5 in)
1992	100.6 mm (4.0 in)
1993	103.6 mm (4.1 in)
1994	114.6 mm (4.5 in)
1995	79.5 mm (3.1 in)
1996	100.6 mm (4.0 in)
1997	84.6 mm (3.3 in)
1998	114.0 mm (4.5 in)
1999	78.5 mm (3.1 in)
2000	117.6 mm (4.6 in)
2001	140.5 mm (5.5 in)
2002	73.1 mm (2.9 in)
2003	199.2 mm (7.8 in)
2004	178.6 mm (7.0 in)
2005	83.2 mm (3.3 in)
2006	68.8 mm (2.7 in)
2007	108.4 mm (4.3 in)
2008	94.8 mm (3.7 in)
2009	101.9 mm (4.0 in)
2010	109.7 mm (4.3 in)
2011	83.0 mm (3.3 in)
2012	67.8 mm (2.7 in)
2013	104.1 mm (4.1 in)
2014	122.0 mm (4.8 in)
2015	118.6 mm (4.7 in)
2016	116.5 mm (4.6 in)
2017	123.4 mm (4.9 in)
2018	145.6 mm (5.7 in)
2019	65.4 mm (2.6 in)
2020	95.5 mm (3.8 in)
2021	89.3 mm (3.5 in)
2022	110.3 mm (4.3 in)
2023	112.2 mm (4.4 in)
2024	109.8 mm (4.3 in)
2025	59.9 mm (2.4 in)
2026	129.1 mm (5.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chalmers 5 W, 1991 to 2026. The record is 38 days in 2015, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Chalmers 5 W by year
Year	Longest dry spell (CDD)
1991	8 days
1992	17 days
1993	20 days
1994	18 days
1995	34 days
1996	20 days
1997	19 days
1998	22 days
1999	25 days
2000	11 days
2001	15 days
2002	20 days
2003	13 days
2004	23 days
2005	24 days
2006	16 days
2007	14 days
2008	16 days
2009	13 days
2010	14 days
2011	19 days
2012	17 days
2013	19 days
2014	11 days
2015	38 days
2016	15 days
2017	15 days
2018	11 days
2019	13 days
2020	15 days
2021	12 days
2022	16 days
2023	22 days
2024	33 days
2025	17 days
2026	23 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

34 years, 1992 to 2025

A day with at least 64.0 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 109.5 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Chalmers 5 W: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	64.0 mm (2.5 in)
5 years	79.6 mm (3.1 in)
10 years	88.3 mm (3.5 in)
25 years	97.9 mm (3.9 in)
50 years	104.1 mm (4.1 in)	Longer than the 34 years of record
100 years	109.5 mm (4.3 in)	Longer than the 34 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, 34 years of values from 1992 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: 99.8 mm (3.9 in) in 2016; 99.1 mm (3.9 in) in 2024; 97.8 mm (3.9 in) in 2022.

Download the Data

Data for Chalmers 5 W standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chalmers 5 W 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).