St Martinville 3 SW Weather Records (USC00168181)

Record envelope, standing records and threshold days for St Martinville 3 SW (USC00168181), Louisiana, United States, with 34 years of record.

Key Facts for St Martinville 3 SW

St Martinville 3 SW (USC00168181) is a weather station in Louisiana, United States at 30.09 latitude and -91.87 longitude, 9 m (30 ft) above sea level.
The station reports from 1985 to 2018, 34 years of record.
1,464 records set at St Martinville 3 SW still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
St Martinville 3 SW set a daily record precipitation of 14.5 mm (0.6 in) on 8 February 2018.

About the Station

Location: Louisiana, United States, 30.09 latitude, -91.87 longitude.
Elevation: 9 m (30 ft).
Period of record: 1985 to 2018, 34 years.
Eligible elements: prcp.

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 Martinville 3 SW. 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 Martinville 3 SW, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.7 C (80.1 F)	-8.9 C (16.0 F)	n/a	n/a
Feb	27.8 C (82.0 F)	-6.1 C (21.0 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-3.9 C (25.0 F)	n/a	n/a
Apr	31.7 C (89.1 F)	0.0 C (32.0 F)	n/a	n/a
May	35.6 C (96.1 F)	5.6 C (42.1 F)	n/a	n/a
Jun	37.8 C (100.0 F)	15.0 C (59.0 F)	n/a	n/a
Jul	36.7 C (98.1 F)	17.8 C (64.0 F)	n/a	n/a
Aug	37.8 C (100.0 F)	13.9 C (57.0 F)	n/a	n/a
Sep	36.7 C (98.1 F)	8.3 C (46.9 F)	n/a	n/a
Oct	33.3 C (91.9 F)	1.1 C (34.0 F)	n/a	n/a
Nov	32.8 C (91.0 F)	-6.1 C (21.0 F)	n/a	n/a
Dec	27.8 C (82.0 F)	-5.0 C (23.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at St Martinville 3 SW still stand. 2005 holds the most, with 113.

Standing records at St Martinville 3 SW by the year they were set
Year set	Standing records
2001	70
2002	94
2003	85
2004	101
2005	113
2006	97
2007	87
2008	68
2009	89
2010	93
2011	94
2012	64
2013	71
2014	75
2015	75
2016	39
2017	88
2018	61

All-Time Record Progression

1 new records

1 all-time records were set at St Martinville 3 SW between 14 August 2016 and 14 August 2016. Each dot is a new record.

Wettest Day of Each Month

Aug: 266.7 mm (10.5 in)

The wettest day on record for each calendar month at St Martinville 3 SW. The most was 266.7 mm (10.5 in) on 14 August 2016.

Record daily precipitation for each month at St Martinville 3 SW
Month	Record daily precipitation (mm)	Date
Jan	111.5 mm (4.4 in)	5 January 2007
Feb	105.4 mm (4.1 in)	19 February 1988
Mar	139.7 mm (5.5 in)	14 March 1995
Apr	148.6 mm (5.9 in)	8 April 2003
May	150.4 mm (5.9 in)	4 May 2017
Jun	223.5 mm (8.8 in)	26 June 1999
Jul	114.3 mm (4.5 in)	25 July 1999
Aug	266.7 mm (10.5 in)	14 August 2016
Sep	193.3 mm (7.6 in)	12 September 1998
Oct	165.1 mm (6.5 in)	9 October 2004
Nov	210.8 mm (8.3 in)	7 November 2015
Dec	172.7 mm (6.8 in)	18 December 1995

Period of Record Coverage

2001 to 2018

18 years of record at St Martinville 3 SW, 2001 to 2018. 2 years have data for under 90 percent of days and are left out of rankings: 2001, 2018.

Days with data per year at St Martinville 3 SW
Year	Days with data	Share of year	Complete
2001	214	59%	No
2002	365	100%	Yes
2003	364	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	364	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	362	99%	Yes
2010	365	100%	Yes
2011	364	100%	Yes
2012	362	99%	Yes
2013	364	100%	Yes
2014	334	92%	Yes
2015	365	100%	Yes
2016	335	92%	Yes
2017	365	100%	Yes
2018	212	58%	No

Latest Records

Latest records at St Martinville 3 SW
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 February 2018	St Martinville 3 SW, US	daily rain	14.5 mm (0.6 in)	1.0 mm (0.04 in)	28 years	11 of 100 (Routine)
27 January 2018	St Martinville 3 SW, US	daily rain	98.3 mm (3.9 in)	20.6 mm (0.8 in)	22 years	19 of 100 (Routine)
17 December 2017	St Martinville 3 SW, US	daily rain	31.5 mm (1.2 in)	8.4 mm (0.33 in)	4 years	7 of 100 (Routine)
6 December 2017	St Martinville 3 SW, US	daily rain	81.8 mm (3.2 in)	57.9 mm (2.3 in)	0 years	29 of 100 (Routine)
2 November 2017	St Martinville 3 SW, US	daily rain	55.4 mm (2.2 in)	1.0 mm (0.04 in)	7 years	5 of 100 (Routine)
22 October 2017	St Martinville 3 SW, US	daily rain	74.9 mm (2.9 in)	24.1 mm (0.9 in)	11 years	15 of 100 (Routine)
29 August 2017	St Martinville 3 SW, US	daily rain	112.3 mm (4.4 in)	84.4 mm (3.3 in)	30 years	45 of 100 (Notable)
28 August 2017	St Martinville 3 SW, US	daily rain	61.0 mm (2.4 in)	52.6 mm (2.1 in)	12 years	27 of 100 (Routine)
15 August 2017	St Martinville 3 SW, US	daily rain	37.8 mm (1.5 in)	0.5 mm (0.02 in)	19 years	8 of 100 (Routine)
17 July 2017	St Martinville 3 SW, US	daily rain	23.9 mm (0.9 in)	2.1 mm (0.08 in)	0 years	4 of 100 (Routine)
11 July 2017	St Martinville 3 SW, US	daily rain	26.7 mm (1.1 in)	1.3 mm (0.05 in)	23 years	9 of 100 (Routine)
31 May 2017	St Martinville 3 SW, US	daily rain	72.6 mm (2.9 in)	45.2 mm (1.8 in)	10 years	28 of 100 (Routine)
4 May 2017	St Martinville 3 SW, US	monthly rain	150.4 mm (5.9 in)	25.9 mm (1.0 in)	27 years	33 of 100 (Routine)
25 March 2017	St Martinville 3 SW, US	daily rain	13.5 mm (0.5 in)	7.1 mm (0.28 in)	7 years	8 of 100 (Routine)
21 February 2017	St Martinville 3 SW, US	daily rain	47.2 mm (1.9 in)	21.3 mm (0.8 in)	26 years	20 of 100 (Routine)
1 January 2017	St Martinville 3 SW, US	daily rain	68.6 mm (2.7 in)	47.5 mm (1.9 in)	22 years	32 of 100 (Routine)
6 December 2016	St Martinville 3 SW, US	daily rain	23.9 mm (0.9 in)	20.3 mm (0.8 in)	5 years	13 of 100 (Routine)
4 December 2016	St Martinville 3 SW, US	daily rain	66.0 mm (2.6 in)	4.8 mm (0.19 in)	22 years	11 of 100 (Routine)
30 November 2016	St Martinville 3 SW, US	daily rain	26.4 mm (1.0 in)	6.3 mm (0.25 in)	15 years	9 of 100 (Routine)
5 September 2016	St Martinville 3 SW, US	daily rain	49.3 mm (1.9 in)	13.7 mm (0.5 in)	26 years	15 of 100 (Routine)

Climate Trend

14 complete years, 2002 to 2017

One stripe for each of 14 complete years at St Martinville 3 SW, 2002 to 2017. Blue stripes are years cooler than the station's own mean of 20.1 C (68.1 F); red stripes are warmer. The coolest year was 2002, at 19.3 C (66.7 F), and the warmest was 2017, at 20.9 C (69.6 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at St Martinville 3 SW as warming stripes, 2002 to 2017
Year	Annual mean temperature	Difference from the station mean
2002	19.3 C	-0.80 C
2003	20.3 C	+0.19 C
2004	20.3 C	+0.27 C
2005	20.5 C	+0.46 C
2006	20.3 C	+0.19 C
2007	20.0 C	-0.07 C
2008	19.7 C	-0.37 C
2009	19.9 C	-0.15 C
2010	19.4 C	-0.70 C
2011	19.9 C	-0.17 C
2012	20.7 C	+0.62 C
2013	19.4 C	-0.64 C
2015	20.4 C	+0.37 C
2017	20.9 C	+0.82 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

1985 to 2018

Yearly extremes at St Martinville 3 SW: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.8 C (100.0 F)	2007	36.4 C (97.5 F)	18
Coldest night (TNn)	-8.9 C (16.0 F)	2018	-4.4 C (24.1 F)	18
Wettest day (Rx1day)	266.7 mm (10.5 in)	2016	125.1 mm (4.9 in)	34
Wettest five days (Rx5day)	641.8 mm (25.3 in)	2016	196.7 mm (7.7 in)	34
Longest dry spell (CDD)	41 days	2018	24 days	34

Hottest day (TXx)

The hottest day of the year at St Martinville 3 SW, 1985 to 2018. The record is 37.8 C (100.0 F) in 2007, marked on the chart; the median year is 36.4 C (97.5 F).

Hottest day (TXx) at St Martinville 3 SW by year
Year	Hottest day (TXx)
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
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	36.7 C (98.1 F)
2002	36.1 C (97.0 F)
2003	36.1 C (97.0 F)
2004	36.1 C (97.0 F)
2005	37.2 C (99.0 F)
2006	36.7 C (98.1 F)
2007	37.8 C (100.0 F)
2008	36.1 C (97.0 F)
2009	36.7 C (98.1 F)
2010	37.2 C (99.0 F)
2011	37.8 C (100.0 F)
2012	36.7 C (98.1 F)
2013	35.0 C (95.0 F)
2014	33.3 C (91.9 F)
2015	36.7 C (98.1 F)
2016	33.9 C (93.0 F)
2017	34.4 C (93.9 F)
2018	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at St Martinville 3 SW, 1985 to 2018. The record is -8.9 C (16.0 F) in 2018, marked on the chart; the median year is -4.4 C (24.1 F).

Coldest night (TNn) at St Martinville 3 SW by year
Year	Coldest night (TNn)
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	n/a
1990	n/a
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	-3.9 C (25.0 F)
2002	-7.8 C (18.0 F)
2003	-6.7 C (19.9 F)
2004	-5.0 C (23.0 F)
2005	-3.9 C (25.0 F)
2006	-6.1 C (21.0 F)
2007	-2.2 C (28.0 F)
2008	-4.4 C (24.1 F)
2009	-3.3 C (26.1 F)
2010	-7.8 C (18.0 F)
2011	-4.4 C (24.1 F)
2012	-2.2 C (28.0 F)
2013	-3.3 C (26.1 F)
2014	-2.8 C (27.0 F)
2015	-5.0 C (23.0 F)
2016	-1.7 C (28.9 F)
2017	-5.0 C (23.0 F)
2018	-8.9 C (16.0 F)

Wettest day (Rx1day)

The wettest day of the year at St Martinville 3 SW, 1985 to 2018. The record is 266.7 mm (10.5 in) in 2016, marked on the chart; the median year is 125.1 mm (4.9 in).

Wettest day (Rx1day) at St Martinville 3 SW by year
Year	Wettest day (Rx1day)
1985	71.1 mm (2.8 in)
1986	88.4 mm (3.5 in)
1987	165.1 mm (6.5 in)
1988	105.4 mm (4.1 in)
1989	124.5 mm (4.9 in)
1990	76.2 mm (3.0 in)
1991	104.1 mm (4.1 in)
1992	76.2 mm (3.0 in)
1993	121.2 mm (4.8 in)
1994	61.2 mm (2.4 in)
1995	172.7 mm (6.8 in)
1996	131.3 mm (5.2 in)
1997	157.5 mm (6.2 in)
1998	193.3 mm (7.6 in)
1999	223.5 mm (8.8 in)
2000	137.2 mm (5.4 in)
2001	178.3 mm (7.0 in)
2002	108.2 mm (4.3 in)
2003	148.6 mm (5.9 in)
2004	165.1 mm (6.5 in)
2005	192.5 mm (7.6 in)
2006	132.1 mm (5.2 in)
2007	111.5 mm (4.4 in)
2008	142.5 mm (5.6 in)
2009	118.9 mm (4.7 in)
2010	125.7 mm (4.9 in)
2011	64.3 mm (2.5 in)
2012	81.3 mm (3.2 in)
2013	94.5 mm (3.7 in)
2014	96.5 mm (3.8 in)
2015	210.8 mm (8.3 in)
2016	266.7 mm (10.5 in)
2017	150.4 mm (5.9 in)
2018	98.3 mm (3.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at St Martinville 3 SW, 1985 to 2018. The record is 641.8 mm (25.3 in) in 2016, marked on the chart; the median year is 196.7 mm (7.7 in).

Wettest five days (Rx5day) at St Martinville 3 SW by year
Year	Wettest five days (Rx5day)
1985	179.6 mm (7.1 in)
1986	104.7 mm (4.1 in)
1987	299.0 mm (11.8 in)
1988	158.4 mm (6.2 in)
1989	179.8 mm (7.1 in)
1990	119.6 mm (4.7 in)
1991	184.9 mm (7.3 in)
1992	128.7 mm (5.1 in)
1993	212.4 mm (8.4 in)
1994	100.8 mm (4.0 in)
1995	213.3 mm (8.4 in)
1996	226.9 mm (8.9 in)
1997	223.5 mm (8.8 in)
1998	285.5 mm (11.2 in)
1999	254.2 mm (10.0 in)
2000	202.1 mm (8.0 in)
2001	330.3 mm (13.0 in)
2002	196.3 mm (7.7 in)
2003	296.7 mm (11.7 in)
2004	294.9 mm (11.6 in)
2005	206.5 mm (8.1 in)
2006	165.4 mm (6.5 in)
2007	141.2 mm (5.6 in)
2008	226.1 mm (8.9 in)
2009	155.2 mm (6.1 in)
2010	197.1 mm (7.8 in)
2011	156.7 mm (6.2 in)
2012	102.1 mm (4.0 in)
2013	164.8 mm (6.5 in)
2014	173.5 mm (6.8 in)
2015	284.5 mm (11.2 in)
2016	641.8 mm (25.3 in)
2017	210.2 mm (8.3 in)
2018	127.3 mm (5.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at St Martinville 3 SW, 1985 to 2018. The record is 41 days in 2018, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at St Martinville 3 SW by year
Year	Longest dry spell (CDD)
1985	14 days
1986	24 days
1987	33 days
1988	21 days
1989	18 days
1990	20 days
1991	18 days
1992	17 days
1993	15 days
1994	14 days
1995	24 days
1996	24 days
1997	17 days
1998	29 days
1999	31 days
2000	28 days
2001	28 days
2002	34 days
2003	33 days
2004	17 days
2005	28 days
2006	23 days
2007	26 days
2008	18 days
2009	22 days
2010	20 days
2011	28 days
2012	17 days
2013	21 days
2014	24 days
2015	24 days
2016	17 days
2017	25 days
2018	41 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

32 years, 1986 to 2017

A day with at least 128.4 mm (5.1 in) of rain is expected about once in 2 years. A day with at least 282.4 mm (11.1 in) of rain is expected about once in 100 years.

Rainfall return levels at St Martinville 3 SW: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	128.4 mm (5.1 in)
5 years	173.3 mm (6.8 in)
10 years	201.5 mm (7.9 in)
25 years	235.5 mm (9.3 in)
50 years	259.5 mm (10.2 in)	Longer than the 32 years of record
100 years	282.4 mm (11.1 in)	Longer than the 32 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, 32 years of values from 1986 to 2017.

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: 266.7 mm (10.5 in) in 2016; 223.5 mm (8.8 in) in 1999; 210.8 mm (8.3 in) in 2015.

Download the Data

Data for St Martinville 3 SW standing records by year: CSV or JSON. Field meanings are on the data page.
Data for St Martinville 3 SW 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).