Mt Pleasant 4SW Weather Records (USC00226084)

Record envelope, standing records and threshold days for Mt Pleasant 4SW (USC00226084), Mississippi, United States, with 76 years of record.

Key Facts for Mt Pleasant 4SW

Mt Pleasant 4SW (USC00226084) is a weather station in Mississippi, United States at 34.89 latitude and -89.60 longitude, 117 m (385 ft) above sea level.
The station reports from 1942 to 2017, 76 years of record.
0 records set at Mt Pleasant 4SW still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Mt Pleasant 4SW set a daily record precipitation of 32.5 mm (1.3 in) on 3 April 2017.

About the Station

Location: Mississippi, United States, 34.89 latitude, -89.60 longitude.
Elevation: 117 m (385 ft).
Period of record: 1942 to 2017, 76 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 Mt Pleasant 4SW. 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 Mt Pleasant 4SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Mt Pleasant 4SW still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Mt Pleasant 4SW between 12 September 2006 and 12 September 2006. Each dot is a new record.

Wettest Day of Each Month

Sep: 172.7 mm (6.8 in)

The wettest day on record for each calendar month at Mt Pleasant 4SW. The most was 172.7 mm (6.8 in) on 12 September 2006.

Record daily precipitation for each month at Mt Pleasant 4SW
Month	Record daily precipitation (mm)	Date
Jan	119.4 mm (4.7 in)	8 January 1946
Feb	128.0 mm (5.0 in)	10 February 1966
Mar	123.7 mm (4.9 in)	17 March 1980
Apr	146.8 mm (5.8 in)	27 April 2011
May	125.5 mm (4.9 in)	2 May 2010
Jun	95.8 mm (3.8 in)	7 June 2014
Jul	158.8 mm (6.3 in)	6 July 1967
Aug	135.4 mm (5.3 in)	5 August 1995
Sep	172.7 mm (6.8 in)	12 September 2006
Oct	117.6 mm (4.6 in)	8 October 2008
Nov	123.2 mm (4.9 in)	29 November 2001
Dec	121.9 mm (4.8 in)	4 December 1982

Latest Records

Latest records at Mt Pleasant 4SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
3 April 2017	Mt Pleasant 4SW, US	daily rain	32.5 mm (1.3 in)	4.6 mm (0.18 in)	35 years	19 of 100 (Routine)
6 January 2017	Mt Pleasant 4SW, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	69 years	20 of 100 (Routine)
20 May 2016	Mt Pleasant 4SW, US	daily rain	75.7 mm (3.0 in)	7.9 mm (0.31 in)	26 years	18 of 100 (Routine)
10 March 2016	Mt Pleasant 4SW, US	daily rain	123.2 mm (4.9 in)	26.7 mm (1.1 in)	24 years	30 of 100 (Routine)
18 November 2015	Mt Pleasant 4SW, US	daily rain	108.0 mm (4.3 in)	57.2 mm (2.3 in)	45 years	50 of 100 (Notable)
20 August 2015	Mt Pleasant 4SW, US	daily rain	55.9 mm (2.2 in)	27.7 mm (1.1 in)	58 years	41 of 100 (Notable)
4 July 2015	Mt Pleasant 4SW, US	daily rain	69.9 mm (2.8 in)	36.9 mm (1.5 in)	29 years	34 of 100 (Routine)
1 June 2015	Mt Pleasant 4SW, US	daily rain	62.0 mm (2.4 in)	4.8 mm (0.19 in)	40 years	22 of 100 (Routine)
16 May 2015	Mt Pleasant 4SW, US	daily rain	46.5 mm (1.8 in)	12.0 mm (0.5 in)	61 years	31 of 100 (Routine)
6 December 2014	Mt Pleasant 4SW, US	daily rain	52.8 mm (2.1 in)	5.3 mm (0.21 in)	64 years	28 of 100 (Routine)
29 October 2014	Mt Pleasant 4SW, US	daily rain	51.1 mm (2.0 in)	31.3 mm (1.2 in)	35 years	34 of 100 (Routine)
30 June 2014	Mt Pleasant 4SW, US	daily rain (Tie)	27.9 mm (1.1 in)	tie	63 years	6 of 100 (Routine)
9 June 2014	Mt Pleasant 4SW, US	daily rain	54.9 mm (2.2 in)	4.1 mm (0.16 in)	17 years	14 of 100 (Routine)
7 June 2014	Mt Pleasant 4SW, US	monthly rain	95.8 mm (3.8 in)	4.6 mm (0.18 in)	16 years	25 of 100 (Routine)
18 May 2014	Mt Pleasant 4SW, US	daily rain	27.7 mm (1.1 in)	0.5 mm (0.02 in)	48 years	21 of 100 (Routine)
28 April 2014	Mt Pleasant 4SW, US	daily rain	72.9 mm (2.9 in)	15.2 mm (0.6 in)	23 years	21 of 100 (Routine)
8 February 2014	Mt Pleasant 4SW, US	daily snow depth	0.5 cm (0.2 in)	0.5 cm (0.2 in)	66 years	20 of 100 (Routine)
22 May 2013	Mt Pleasant 4SW, US	daily rain	51.1 mm (2.0 in)	15.0 mm (0.6 in)	39 years	26 of 100 (Routine)
11 April 2013	Mt Pleasant 4SW, US	daily rain	51.1 mm (2.0 in)	2.1 mm (0.08 in)	66 years	27 of 100 (Routine)
14 January 2013	Mt Pleasant 4SW, US	daily rain	111.3 mm (4.4 in)	68.6 mm (2.7 in)	36 years	57 of 100 (Notable)

Extremes by Year

1942 to 2017

Yearly extremes at Mt Pleasant 4SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	172.7 mm (6.8 in)	2006	90.6 mm (3.6 in)	76
Wettest five days (Rx5day)	266.0 mm (10.5 in)	1958	140.0 mm (5.5 in)	76
Longest dry spell (CDD)	57 days	1963	22 days	76

Wettest day (Rx1day)

The wettest day of the year at Mt Pleasant 4SW, 1942 to 2017. The record is 172.7 mm (6.8 in) in 2006, marked on the chart; the median year is 90.6 mm (3.6 in).

Wettest day (Rx1day) at Mt Pleasant 4SW by year
Year	Wettest day (Rx1day)
1942	66.5 mm (2.6 in)
1943	59.7 mm (2.4 in)
1944	76.2 mm (3.0 in)
1945	84.6 mm (3.3 in)
1946	119.4 mm (4.7 in)
1947	73.7 mm (2.9 in)
1948	101.6 mm (4.0 in)
1949	81.5 mm (3.2 in)
1950	62.2 mm (2.4 in)
1951	80.3 mm (3.2 in)
1952	62.7 mm (2.5 in)
1953	86.4 mm (3.4 in)
1954	61.0 mm (2.4 in)
1955	75.4 mm (3.0 in)
1956	94.5 mm (3.7 in)
1957	96.5 mm (3.8 in)
1958	143.3 mm (5.6 in)
1959	64.8 mm (2.6 in)
1960	62.2 mm (2.4 in)
1961	66.5 mm (2.6 in)
1962	72.4 mm (2.9 in)
1963	101.6 mm (4.0 in)
1964	88.4 mm (3.5 in)
1965	83.8 mm (3.3 in)
1966	128.0 mm (5.0 in)
1967	158.8 mm (6.3 in)
1968	80.8 mm (3.2 in)
1969	106.7 mm (4.2 in)
1970	59.7 mm (2.4 in)
1971	61.0 mm (2.4 in)
1972	94.0 mm (3.7 in)
1973	98.3 mm (3.9 in)
1974	88.4 mm (3.5 in)
1975	98.0 mm (3.9 in)
1976	92.5 mm (3.6 in)
1977	98.0 mm (3.9 in)
1978	112.3 mm (4.4 in)
1979	80.5 mm (3.2 in)
1980	123.7 mm (4.9 in)
1981	88.6 mm (3.5 in)
1982	121.9 mm (4.8 in)
1983	100.3 mm (3.9 in)
1984	75.4 mm (3.0 in)
1985	62.2 mm (2.4 in)
1986	98.8 mm (3.9 in)
1987	88.6 mm (3.5 in)
1988	120.7 mm (4.8 in)
1989	109.7 mm (4.3 in)
1990	80.0 mm (3.1 in)
1991	82.8 mm (3.3 in)
1992	138.7 mm (5.5 in)
1993	96.5 mm (3.8 in)
1994	79.2 mm (3.1 in)
1995	135.4 mm (5.3 in)
1996	80.0 mm (3.1 in)
1997	133.9 mm (5.3 in)
1998	115.1 mm (4.5 in)
1999	79.2 mm (3.1 in)
2000	69.1 mm (2.7 in)
2001	123.2 mm (4.9 in)
2002	129.8 mm (5.1 in)
2003	102.4 mm (4.0 in)
2004	65.0 mm (2.6 in)
2005	79.5 mm (3.1 in)
2006	172.7 mm (6.8 in)
2007	47.8 mm (1.9 in)
2008	117.6 mm (4.6 in)
2009	94.0 mm (3.7 in)
2010	125.5 mm (4.9 in)
2011	146.8 mm (5.8 in)
2012	82.6 mm (3.3 in)
2013	111.3 mm (4.4 in)
2014	95.8 mm (3.8 in)
2015	108.0 mm (4.3 in)
2016	123.2 mm (4.9 in)
2017	52.3 mm (2.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Mt Pleasant 4SW, 1942 to 2017. The record is 266.0 mm (10.5 in) in 1958, marked on the chart; the median year is 140.0 mm (5.5 in).

Wettest five days (Rx5day) at Mt Pleasant 4SW by year
Year	Wettest five days (Rx5day)
1942	86.4 mm (3.4 in)
1943	126.7 mm (5.0 in)
1944	111.8 mm (4.4 in)
1945	128.5 mm (5.1 in)
1946	238.8 mm (9.4 in)
1947	145.3 mm (5.7 in)
1948	138.9 mm (5.5 in)
1949	179.6 mm (7.1 in)
1950	126.1 mm (5.0 in)
1951	113.3 mm (4.5 in)
1952	68.5 mm (2.7 in)
1953	169.1 mm (6.7 in)
1954	137.2 mm (5.4 in)
1955	128.9 mm (5.1 in)
1956	202.2 mm (8.0 in)
1957	159.0 mm (6.3 in)
1958	266.0 mm (10.5 in)
1959	85.4 mm (3.4 in)
1960	116.8 mm (4.6 in)
1961	123.7 mm (4.9 in)
1962	124.0 mm (4.9 in)
1963	132.1 mm (5.2 in)
1964	127.5 mm (5.0 in)
1965	148.8 mm (5.9 in)
1966	187.7 mm (7.4 in)
1967	238.8 mm (9.4 in)
1968	150.9 mm (5.9 in)
1969	158.0 mm (6.2 in)
1970	87.6 mm (3.4 in)
1971	96.0 mm (3.8 in)
1972	159.7 mm (6.3 in)
1973	160.3 mm (6.3 in)
1974	132.3 mm (5.2 in)
1975	168.9 mm (6.6 in)
1976	119.7 mm (4.7 in)
1977	153.6 mm (6.0 in)
1978	146.9 mm (5.8 in)
1979	141.0 mm (5.6 in)
1980	184.7 mm (7.3 in)
1981	131.8 mm (5.2 in)
1982	157.4 mm (6.2 in)
1983	137.2 mm (5.4 in)
1984	121.7 mm (4.8 in)
1985	92.4 mm (3.6 in)
1986	168.4 mm (6.6 in)
1987	164.8 mm (6.5 in)
1988	142.6 mm (5.6 in)
1989	151.4 mm (6.0 in)
1990	189.0 mm (7.4 in)
1991	156.0 mm (6.1 in)
1992	161.1 mm (6.3 in)
1993	135.2 mm (5.3 in)
1994	121.9 mm (4.8 in)
1995	149.6 mm (5.9 in)
1996	121.2 mm (4.8 in)
1997	143.6 mm (5.7 in)
1998	118.1 mm (4.6 in)
1999	111.7 mm (4.4 in)
2000	90.7 mm (3.6 in)
2001	236.7 mm (9.3 in)
2002	197.6 mm (7.8 in)
2003	136.1 mm (5.4 in)
2004	98.2 mm (3.9 in)
2005	104.4 mm (4.1 in)
2006	199.1 mm (7.8 in)
2007	75.0 mm (3.0 in)
2008	143.6 mm (5.7 in)
2009	107.7 mm (4.2 in)
2010	224.6 mm (8.8 in)
2011	235.2 mm (9.3 in)
2012	82.6 mm (3.3 in)
2013	168.5 mm (6.6 in)
2014	185.5 mm (7.3 in)
2015	123.3 mm (4.9 in)
2016	225.5 mm (8.9 in)
2017	67.8 mm (2.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Mt Pleasant 4SW, 1942 to 2017. The record is 57 days in 1963, marked on the chart; the median year is 22 days.

Longest dry spell (CDD) at Mt Pleasant 4SW by year
Year	Longest dry spell (CDD)
1942	13 days
1943	33 days
1944	26 days
1945	19 days
1946	27 days
1947	19 days
1948	21 days
1949	20 days
1950	17 days
1951	27 days
1952	19 days
1953	37 days
1954	27 days
1955	26 days
1956	23 days
1957	14 days
1958	21 days
1959	19 days
1960	23 days
1961	30 days
1962	28 days
1963	57 days
1964	28 days
1965	37 days
1966	38 days
1967	19 days
1968	26 days
1969	23 days
1970	23 days
1971	37 days
1972	20 days
1973	21 days
1974	24 days
1975	15 days
1976	23 days
1977	20 days
1978	27 days
1979	14 days
1980	21 days
1981	23 days
1982	16 days
1983	22 days
1984	25 days
1985	14 days
1986	21 days
1987	19 days
1988	23 days
1989	26 days
1990	24 days
1991	15 days
1992	28 days
1993	17 days
1994	18 days
1995	23 days
1996	19 days
1997	17 days
1998	36 days
1999	22 days
2000	38 days
2001	29 days
2002	20 days
2003	16 days
2004	16 days
2005	36 days
2006	31 days
2007	20 days
2008	18 days
2009	19 days
2010	39 days
2011	19 days
2012	19 days
2013	18 days
2014	20 days
2015	24 days
2016	23 days
2017	14 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

70 years, 1943 to 2016

A day with at least 91.2 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 176.0 mm (6.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Mt Pleasant 4SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	91.2 mm (3.6 in)
5 years	115.2 mm (4.5 in)
10 years	130.5 mm (5.1 in)
25 years	149.3 mm (5.9 in)
50 years	162.9 mm (6.4 in)
100 years	176.0 mm (6.9 in)	Longer than the 70 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, 70 years of values from 1943 to 2016.

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: 172.7 mm (6.8 in) in 2006; 158.8 mm (6.3 in) in 1967; 146.8 mm (5.8 in) in 2011.

Download the Data

Data for Mt Pleasant 4SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Mt Pleasant 4SW 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a