St Peters 2 SE Weather Records (USC00237475)

Record envelope, standing records and threshold days for St Peters 2 SE (USC00237475), Missouri, United States, with 47 years of record.

Key Facts for St Peters 2 SE

St Peters 2 SE (USC00237475) is a weather station in Missouri, United States at 38.77 latitude and -90.59 longitude, 175 m (575 ft) above sea level.
The station reports from 1980 to 2026, 47 years of record.
1,464 records set at St Peters 2 SE still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
St Peters 2 SE set a daily record precipitation of 37.6 mm (1.5 in) on 21 September 2026 (provisional).

Provisional Records

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

About the Station

Location: Missouri, United States, 38.77 latitude, -90.59 longitude.
Elevation: 175 m (575 ft).
Period of record: 1980 to 2026, 47 years.
Eligible elements: prcp, snow, snwd.

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 St Peters 2 SE. 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 St Peters 2 SE, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.8 C (73.0 F)	-28.9 C (-20.0 F)	n/a	n/a
Feb	25.6 C (78.1 F)	-27.2 C (-17.0 F)	n/a	n/a
Mar	31.1 C (88.0 F)	-17.2 C (1.0 F)	n/a	n/a
Apr	33.9 C (93.0 F)	-5.6 C (21.9 F)	n/a	n/a
May	33.9 C (93.0 F)	1.1 C (34.0 F)	n/a	n/a
Jun	40.6 C (105.1 F)	7.2 C (45.0 F)	n/a	n/a
Jul	41.1 C (106.0 F)	8.9 C (48.0 F)	n/a	n/a
Aug	41.7 C (107.1 F)	7.2 C (45.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	33.9 C (93.0 F)	-5.6 C (21.9 F)	n/a	n/a
Nov	28.9 C (84.0 F)	-15.6 C (3.9 F)	n/a	n/a
Dec	23.9 C (75.0 F)	-27.8 C (-18.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Peters 2 SE still stand. 1989 holds the most, with 88.

Standing records at St Peters 2 SE by the year they were set
Year set	Standing records
1980	83
1981	50
1982	60
1983	62
1984	58
1985	53
1986	69
1987	47
1988	54
1989	88
1990	67
1991	82
1992	58
1993	38
1994	26
1995	1
2004	59
2005	48
2006	49
2008	35
2009	48
2010	45
2011	50
2012	70
2013	55
2014	64
2015	37
2016	8

All-Time Record Progression

2 new records

2 all-time records were set at St Peters 2 SE between 27 December 2015 and 26 July 2022. Each dot is a new record.

When St Peters 2 SE set new all-time records
Date	Kind	Detail
2015-12-27	Record daily precipitation	Record daily precipitation 167.4 mm (6.6 in)
2022-07-26	Record daily precipitation	Record daily precipitation 276.4 mm (10.9 in)

Wettest Day of Each Month

Jul: 276.4 mm (10.9 in)

The wettest day on record for each calendar month at St Peters 2 SE. The most was 276.4 mm (10.9 in) on 26 July 2022.

Record daily precipitation for each month at St Peters 2 SE
Month	Record daily precipitation (mm)	Date
Jan	63.5 mm (2.5 in)	5 January 2005
Feb	85.1 mm (3.4 in)	2 February 1986
Mar	59.7 mm (2.4 in)	27 March 2004
Apr	85.1 mm (3.4 in)	5 April 2025
May	102.1 mm (4.0 in)	21 May 2013
Jun	117.1 mm (4.6 in)	24 June 2000
Jul	276.4 mm (10.9 in)	26 July 2022
Aug	100.8 mm (4.0 in)	9 August 2020
Sep	79.5 mm (3.1 in)	20 September 2002
Oct	83.6 mm (3.3 in)	4 October 1986
Nov	113.0 mm (4.4 in)	5 November 2024
Dec	167.4 mm (6.6 in)	27 December 2015

Period of Record Coverage

1980 to 2016

28 years of record at St Peters 2 SE, 1980 to 2016. 4 years have data for under 90 percent of days and are left out of rankings: 1993, 1994, 1995, 2016.

Days with data per year at St Peters 2 SE
Year	Days with data	Share of year	Complete
1980	332	91%	Yes
1981	358	98%	Yes
1982	363	99%	Yes
1983	360	99%	Yes
1984	362	99%	Yes
1985	360	99%	Yes
1986	363	99%	Yes
1987	354	97%	Yes
1988	361	99%	Yes
1989	358	98%	Yes
1990	362	99%	Yes
1991	358	98%	Yes
1992	363	99%	Yes
1993	327	90%	No
1994	282	77%	No
1995	15	4%	No
2004	363	99%	Yes
2005	363	99%	Yes
2006	365	100%	Yes
2008	334	91%	Yes
2009	349	96%	Yes
2010	361	99%	Yes
2011	363	99%	Yes
2012	361	99%	Yes
2013	362	99%	Yes
2014	348	95%	Yes
2015	359	98%	Yes
2016	102	28%	No

Latest Records

Latest records at St Peters 2 SE
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 2026	St Peters 2 SE, US	daily rain (Provisional)	37.6 mm (1.5 in)	9.9 mm (0.39 in)	4 years	12 of 100 (Routine)
22 June 2026	St Peters 2 SE, US	daily rain	32.8 mm (1.3 in)	8.9 mm (0.35 in)	12 years	12 of 100 (Routine)
1 June 2026	St Peters 2 SE, US	daily rain	38.1 mm (1.5 in)	3.8 mm (0.15 in)	12 years	9 of 100 (Routine)
19 May 2026	St Peters 2 SE, US	daily rain	49.0 mm (1.9 in)	3.8 mm (0.15 in)	21 years	12 of 100 (Routine)
18 April 2026	St Peters 2 SE, US	daily rain	31.2 mm (1.2 in)	12.1 mm (0.5 in)	33 years	23 of 100 (Routine)
16 April 2026	St Peters 2 SE, US	daily rain	42.4 mm (1.7 in)	10.6 mm (0.4 in)	3 years	12 of 100 (Routine)
15 February 2026	St Peters 2 SE, US	daily rain	27.7 mm (1.1 in)	2.8 mm (0.11 in)	36 years	16 of 100 (Routine)
31 January 2026	St Peters 2 SE, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	16 years	2 of 100 (Routine)
30 January 2026	St Peters 2 SE, US	daily snow depth (Tie)	10.2 cm (4.0 in)	tie	16 years	2 of 100 (Routine)
28 January 2026	St Peters 2 SE, US	daily snow depth (Tie)	15.2 cm (6.0 in)	tie	16 years	2 of 100 (Routine)
27 January 2026	St Peters 2 SE, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	39 years	28 of 100 (Routine)
26 January 2026	St Peters 2 SE, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	39 years	28 of 100 (Routine)
25 January 2026	St Peters 2 SE, US	daily snowfall	21.1 cm (8.3 in)	16.0 cm (6.3 in)	3 years	33 of 100 (Routine)
25 January 2026	St Peters 2 SE, US	daily snow depth	20.3 cm (8.0 in)	7.6 cm (3.0 in)	39 years	28 of 100 (Routine)
5 December 2025	St Peters 2 SE, US	daily snow depth (Tie)	7.6 cm (3.0 in)	tie	23 years	2 of 100 (Routine)
4 December 2025	St Peters 2 SE, US	daily snow depth	7.6 cm (3.0 in)	2.5 cm (1.0 in)	19 years	14 of 100 (Routine)
3 December 2025	St Peters 2 SE, US	daily snow depth	7.6 cm (3.0 in)	2.5 cm (1.0 in)	19 years	14 of 100 (Routine)
2 December 2025	St Peters 2 SE, US	daily snowfall	6.4 cm (2.5 in)	5.1 cm (2.0 in)	24 years	22 of 100 (Routine)
2 December 2025	St Peters 2 SE, US	daily snow depth	10.2 cm (4.0 in)	5.1 cm (2.0 in)	19 years	20 of 100 (Routine)
1 December 2025	St Peters 2 SE, US	daily snow depth (Tie)	5.1 cm (2.0 in)	tie	19 years	2 of 100 (Routine)

Climate Trend

21 complete years, 1981 to 2015

One stripe for each of 21 complete years at St Peters 2 SE, 1981 to 2015. Blue stripes are years cooler than the station's own mean of 13.0 C (55.5 F); red stripes are warmer. The coolest year was 2014, at 11.5 C (52.6 F), and the warmest was 2012, at 14.6 C (58.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at St Peters 2 SE as warming stripes, 1981 to 2015
Year	Annual mean temperature	Difference from the station mean
1981	12.7 C	-0.34 C
1982	12.1 C	-0.98 C
1983	12.4 C	-0.63 C
1984	12.9 C	-0.20 C
1985	12.1 C	-0.91 C
1986	13.6 C	+0.53 C
1987	14.1 C	+1.02 C
1988	13.1 C	+0.03 C
1989	12.1 C	-0.96 C
1990	14.1 C	+1.07 C
1991	14.1 C	+1.01 C
1992	13.0 C	-0.01 C
2004	12.9 C	-0.14 C
2005	13.6 C	+0.58 C
2006	13.9 C	+0.80 C
2010	13.0 C	-0.10 C
2011	13.4 C	+0.33 C
2012	14.6 C	+1.50 C
2013	12.1 C	-0.99 C
2014	11.5 C	-1.59 C
2015	13.0 C	-0.05 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

1980 to 2026

Yearly extremes at St Peters 2 SE: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.7 C (107.1 F)	1984	37.8 C (100.0 F)	28
Coldest night (TNn)	-28.9 C (-20.0 F)	1985	-18.9 C (-2.0 F)	28
Wettest day (Rx1day)	276.4 mm (10.9 in)	2022	69.3 mm (2.7 in)	40
Wettest five days (Rx5day)	331.8 mm (13.1 in)	2022	112.5 mm (4.4 in)	40
Longest dry spell (CDD)	32 days	1986	21 days	40

Hottest day (TXx)

The hottest day of the year at St Peters 2 SE, 1980 to 2026. The record is 41.7 C (107.1 F) in 1984, marked on the chart; the median year is 37.8 C (100.0 F).

Hottest day (TXx) at St Peters 2 SE by year
Year	Hottest day (TXx)
1980	41.1 C (106.0 F)
1981	36.7 C (98.1 F)
1982	37.8 C (100.0 F)
1983	39.4 C (102.9 F)
1984	41.7 C (107.1 F)
1985	36.1 C (97.0 F)
1986	38.9 C (102.0 F)
1987	40.6 C (105.1 F)
1988	40.0 C (104.0 F)
1989	37.2 C (99.0 F)
1990	38.3 C (100.9 F)
1991	38.3 C (100.9 F)
1992	37.2 C (99.0 F)
1993	36.1 C (97.0 F)
1994	35.6 C (96.1 F)
1995	17.8 C (64.0 F)
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	35.0 C (95.0 F)
2005	38.3 C (100.9 F)
2006	38.3 C (100.9 F)
2007	n/a
2008	36.1 C (97.0 F)
2009	35.0 C (95.0 F)
2010	37.8 C (100.0 F)
2011	38.9 C (102.0 F)
2012	41.1 C (106.0 F)
2013	37.8 C (100.0 F)
2014	36.1 C (97.0 F)
2015	35.0 C (95.0 F)
2016	28.3 C (82.9 F)
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Coldest night (TNn)

The coldest night of the year at St Peters 2 SE, 1980 to 2026. The record is -28.9 C (-20.0 F) in 1985, marked on the chart; the median year is -18.9 C (-2.0 F).

Coldest night (TNn) at St Peters 2 SE by year
Year	Coldest night (TNn)
1980	-21.7 C (-7.1 F)
1981	-22.8 C (-9.0 F)
1982	-27.2 C (-17.0 F)
1983	-25.0 C (-13.0 F)
1984	-23.9 C (-11.0 F)
1985	-28.9 C (-20.0 F)
1986	-18.3 C (-0.9 F)
1987	-18.9 C (-2.0 F)
1988	-20.0 C (-4.0 F)
1989	-27.8 C (-18.0 F)
1990	-17.8 C (0.0 F)
1991	-15.6 C (3.9 F)
1992	-14.4 C (6.1 F)
1993	-18.9 C (-2.0 F)
1994	-22.8 C (-9.0 F)
1995	-15.6 C (3.9 F)
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	-17.2 C (1.0 F)
2005	-17.2 C (1.0 F)
2006	-15.6 C (3.9 F)
2007	n/a
2008	-16.7 C (1.9 F)
2009	-18.9 C (-2.0 F)
2010	-20.0 C (-4.0 F)
2011	-20.0 C (-4.0 F)
2012	-11.7 C (10.9 F)
2013	-15.6 C (3.9 F)
2014	-22.8 C (-9.0 F)
2015	-16.7 C (1.9 F)
2016	-15.6 C (3.9 F)
2020	n/a
2021	n/a
2022	n/a
2023	n/a
2024	n/a
2025	n/a
2026	n/a

Wettest day (Rx1day)

The wettest day of the year at St Peters 2 SE, 1980 to 2026. The record is 276.4 mm (10.9 in) in 2022, marked on the chart; the median year is 69.3 mm (2.7 in).

Wettest day (Rx1day) at St Peters 2 SE by year
Year	Wettest day (Rx1day)
1980	56.6 mm (2.2 in)
1981	68.6 mm (2.7 in)
1982	81.3 mm (3.2 in)
1983	61.2 mm (2.4 in)
1984	69.9 mm (2.8 in)
1985	70.6 mm (2.8 in)
1986	85.1 mm (3.4 in)
1987	135.6 mm (5.3 in)
1988	54.9 mm (2.2 in)
1989	52.8 mm (2.1 in)
1990	72.9 mm (2.9 in)
1991	45.5 mm (1.8 in)
1992	48.5 mm (1.9 in)
1993	59.2 mm (2.3 in)
1994	52.1 mm (2.1 in)
1995	22.6 mm (0.9 in)
2000	117.1 mm (4.6 in)
2001	76.2 mm (3.0 in)
2002	79.5 mm (3.1 in)
2003	73.4 mm (2.9 in)
2004	59.7 mm (2.4 in)
2005	63.5 mm (2.5 in)
2006	57.2 mm (2.3 in)
2007	38.9 mm (1.5 in)
2008	82.3 mm (3.2 in)
2009	72.4 mm (2.9 in)
2010	79.2 mm (3.1 in)
2011	85.1 mm (3.4 in)
2012	62.5 mm (2.5 in)
2013	102.1 mm (4.0 in)
2014	60.2 mm (2.4 in)
2015	167.4 mm (6.6 in)
2016	51.1 mm (2.0 in)
2020	100.8 mm (4.0 in)
2021	51.3 mm (2.0 in)
2022	276.4 mm (10.9 in)
2023	66.3 mm (2.6 in)
2024	113.0 mm (4.4 in)
2025	87.1 mm (3.4 in)
2026	49.0 mm (1.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Peters 2 SE, 1980 to 2026. The record is 331.8 mm (13.1 in) in 2022, marked on the chart; the median year is 112.5 mm (4.4 in).

Wettest five days (Rx5day) at St Peters 2 SE by year
Year	Wettest five days (Rx5day)
1980	91.1 mm (3.6 in)
1981	132.6 mm (5.2 in)
1982	137.8 mm (5.4 in)
1983	118.3 mm (4.7 in)
1984	134.5 mm (5.3 in)
1985	150.1 mm (5.9 in)
1986	167.2 mm (6.6 in)
1987	186.3 mm (7.3 in)
1988	68.1 mm (2.7 in)
1989	88.9 mm (3.5 in)
1990	125.5 mm (4.9 in)
1991	109.3 mm (4.3 in)
1992	83.6 mm (3.3 in)
1993	115.0 mm (4.5 in)
1994	121.3 mm (4.8 in)
1995	28.9 mm (1.1 in)
2000	166.8 mm (6.6 in)
2001	76.2 mm (3.0 in)
2002	97.5 mm (3.8 in)
2003	101.6 mm (4.0 in)
2004	105.8 mm (4.2 in)
2005	133.1 mm (5.2 in)
2006	86.2 mm (3.4 in)
2007	64.3 mm (2.5 in)
2008	140.0 mm (5.5 in)
2009	97.8 mm (3.9 in)
2010	116.3 mm (4.6 in)
2011	123.4 mm (4.9 in)
2012	84.6 mm (3.3 in)
2013	110.0 mm (4.3 in)
2014	109.8 mm (4.3 in)
2015	265.5 mm (10.5 in)
2016	98.1 mm (3.9 in)
2020	122.7 mm (4.8 in)
2021	72.1 mm (2.8 in)
2022	331.8 mm (13.1 in)
2023	75.2 mm (3.0 in)
2024	164.3 mm (6.5 in)
2025	141.0 mm (5.6 in)
2026	81.1 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Peters 2 SE, 1980 to 2026. The record is 32 days in 1986, marked on the chart; the median year is 21 days.

Longest dry spell (CDD) at St Peters 2 SE by year
Year	Longest dry spell (CDD)
1980	28 days
1981	23 days
1982	17 days
1983	26 days
1984	25 days
1985	23 days
1986	32 days
1987	21 days
1988	21 days
1989	28 days
1990	28 days
1991	22 days
1992	19 days
1993	20 days
1994	16 days
1995	5 days
2000	14 days
2001	16 days
2002	21 days
2003	26 days
2004	21 days
2005	20 days
2006	19 days
2007	15 days
2008	18 days
2009	25 days
2010	28 days
2011	22 days
2012	15 days
2013	26 days
2014	14 days
2015	20 days
2016	13 days
2020	18 days
2021	22 days
2022	16 days
2023	21 days
2024	25 days
2025	24 days
2026	21 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

21 years with a frost

Across 21 years with a frost, the median last spring frost at St Peters 2 SE falls on 9 April and the median first autumn frost on 29 October, which leaves a median of 201 days between them.

Frost dates and growing season at St Peters 2 SE
Measure	Median, all years	Earliest period	Recent period (1981 to 2015)	Recent against earliest	Fitted trend
Last spring frost	9 April	n/a	9 April	n/a	n/a
First autumn frost	29 October	n/a	29 October	n/a	n/a
Growing days	201 days	n/a	201 days	n/a	n/a

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.

Rainfall Return Levels

34 years, 1980 to 2025

A day with at least 67.2 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 263.9 mm (10.4 in) of rain is expected about once in 100 years.

Rainfall return levels at St Peters 2 SE: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	67.2 mm (2.6 in)
5 years	92.4 mm (3.6 in)
10 years	116.6 mm (4.6 in)
25 years	160.0 mm (6.3 in)
50 years	204.8 mm (8.1 in)	Longer than the 34 years of record
100 years	263.9 mm (10.4 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 1980 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: 276.4 mm (10.9 in) in 2022; 167.4 mm (6.6 in) in 2015; 135.6 mm (5.3 in) in 1987.

Download the Data

Data for St Peters 2 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Peters 2 SE 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).