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Built 2026-10-16 (16 October 2026)

Slidell Weather Records (USC00418378)

Record envelope, standing records and threshold days for Slidell (USC00418378), Texas, United States, with 54 years of record.

Key Facts for Slidell

  • Slidell (USC00418378) is a weather station in Texas, United States at 33.36 latitude and -97.39 longitude, 300 m (985 ft) above sea level.
  • The station reports from 1947 to 2000, 54 years of record.
  • 0 records set at Slidell still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Slidell set a daily record precipitation of 16.5 mm (0.6 in) on 3 November 2000.

About the Station

  • Location: Texas, United States, 33.36 latitude, -97.39 longitude.
  • Elevation: 300 m (985 ft).
  • Period of record: 1947 to 2000, 54 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Slidell, with 2026 drawn through them The band shows the record high and record low for each calendar day at Slidell. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 000111 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Slidell. 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 Slidell, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
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Which Years Hold Standing Records

0 standing records
Standing records at Slidell by the year they were set 0 records at Slidell still stand. 00000000000
0 records at Slidell still stand.
Standing records at Slidell by the year they were set
Year setStanding records

Wettest Day of Each Month

May: 180.3 mm (7.1 in)
Record daily precipitation for each month at Slidell The wettest day on record for each calendar month at Slidell. The most was 180.3 mm (7.1 in) on 31 May 1967. 050100150200 Jan: 63.8 mm (2.5 in), 30 January 1969 Jan Feb: 76.2 mm (3.0 in), 9 February 1966 Feb Mar: 150.9 mm (5.9 in), 27 March 1977 Mar Apr: 109.2 mm (4.3 in), 27 April 1957 Apr May: 180.3 mm (7.1 in), 31 May 1967 May Jun: 139.7 mm (5.5 in), 23 June 1959 Jun Jul: 145.3 mm (5.7 in), 30 July 1973 Jul Aug: 94.7 mm (3.7 in), 12 August 1966 Aug Sep: 122.7 mm (4.8 in), 17 September 1970 Sep Oct: 171.2 mm (6.7 in), 31 October 1974 Oct Nov: 100.8 mm (4.0 in), 15 November 1994 Nov Dec: 84.1 mm (3.3 in), 14 December 1992 Dec
The wettest day on record for each calendar month at Slidell. The most was 180.3 mm (7.1 in) on 31 May 1967.
Record daily precipitation for each month at Slidell
MonthRecord daily precipitation (mm)Date
Jan63.8 mm (2.5 in)30 January 1969
Feb76.2 mm (3.0 in)9 February 1966
Mar150.9 mm (5.9 in)27 March 1977
Apr109.2 mm (4.3 in)27 April 1957
May180.3 mm (7.1 in)31 May 1967
Jun139.7 mm (5.5 in)23 June 1959
Jul145.3 mm (5.7 in)30 July 1973
Aug94.7 mm (3.7 in)12 August 1966
Sep122.7 mm (4.8 in)17 September 1970
Oct171.2 mm (6.7 in)31 October 1974
Nov100.8 mm (4.0 in)15 November 1994
Dec84.1 mm (3.3 in)14 December 1992

Latest Records

20
Latest records at Slidell
DateStationRecordValueBeat old record byOld record stoodSignificance
3 November 2000Slidell, USdaily rain16.5 mm (0.6 in)10.7 mm (0.4 in)7 years13 of 100 (Routine)
15 April 2000Slidell, USdaily rain28.4 mm (1.1 in)19.8 mm (0.8 in)50 years31 of 100 (Routine)
1 April 2000Slidell, USdaily rain24.1 mm (0.9 in)10.4 mm (0.4 in)12 years14 of 100 (Routine)
12 December 1999Slidell, USdaily rain51.8 mm (2.0 in)27.2 mm (1.1 in)0 years24 of 100 (Routine)
6 September 1999Slidell, USdaily rain85.1 mm (3.4 in)34.6 mm (1.4 in)12 years23 of 100 (Routine)
29 January 1999Slidell, USdaily rain42.7 mm (1.7 in)25.4 mm (1.0 in)31 years38 of 100 (Notable)
12 December 1998Slidell, USdaily rain24.6 mm (1.0 in)1.7 mm (0.07 in)7 years8 of 100 (Routine)
4 December 1998Slidell, USdaily rain49.5 mm (1.9 in)12.7 mm (0.5 in)4 years15 of 100 (Routine)
6 October 1998Slidell, USdaily rain43.9 mm (1.7 in)14.7 mm (0.6 in)24 years17 of 100 (Routine)
9 May 1998Slidell, USdaily rain45.7 mm (1.8 in)5.1 mm (0.20 in)0 years7 of 100 (Routine)
13 March 1998Slidell, USdaily rain47.0 mm (1.9 in)1.3 mm (0.05 in)3 years5 of 100 (Routine)
7 March 1998Slidell, USdaily rain40.1 mm (1.6 in)14.7 mm (0.6 in)8 years17 of 100 (Routine)
24 December 1997Slidell, USdaily rain20.3 mm (0.8 in)12.7 mm (0.5 in)10 years17 of 100 (Routine)
3 December 1997Slidell, USdaily rain29.2 mm (1.1 in)5.1 mm (0.20 in)44 years21 of 100 (Routine)
13 November 1997Slidell, USdaily rain15.2 mm (0.6 in)3.0 mm (0.12 in)24 years13 of 100 (Routine)
7 July 1997Slidell, USdaily rain35.1 mm (1.4 in)11.7 mm (0.5 in)8 years13 of 100 (Routine)
16 May 1997Slidell, USdaily rain60.7 mm (2.4 in)22.1 mm (0.9 in)28 years22 of 100 (Routine)
9 May 1997Slidell, USdaily rain40.6 mm (1.6 in)25.1 mm (1.0 in)38 years27 of 100 (Routine)
5 April 1997Slidell, USdaily rain62.7 mm (2.5 in)35.8 mm (1.4 in)44 years38 of 100 (Notable)
25 March 1997Slidell, USdaily rain31.8 mm (1.3 in)3.6 mm (0.14 in)36 years18 of 100 (Routine)

Extremes by Year

1947 to 2000
Yearly extremes at Slidell: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Wettest day (Rx1day)180.3 mm (7.1 in)196788.9 mm (3.5 in)54
Wettest five days (Rx5day)302.3 mm (11.9 in)1981125.6 mm (4.9 in)54
Longest dry spell (CDD)73 days195033 days54

Wettest day (Rx1day)

Wettest day (Rx1day) at Slidell by year The wettest day of the year at Slidell, 1947 to 2000. The record is 180.3 mm (7.1 in) in 1967, marked on the chart; the median year is 88.9 mm (3.5 in). 050100150200195019601970198019902000Record: 180.3 mm (7.1 in) in 1967
The wettest day of the year at Slidell, 1947 to 2000. The record is 180.3 mm (7.1 in) in 1967, marked on the chart; the median year is 88.9 mm (3.5 in).
Wettest day (Rx1day) at Slidell by year
YearWettest day (Rx1day)
194763.2 mm (2.5 in)
194858.4 mm (2.3 in)
1949100.3 mm (3.9 in)
1950122.4 mm (4.8 in)
195148.5 mm (1.9 in)
195244.5 mm (1.8 in)
195387.6 mm (3.4 in)
195454.6 mm (2.1 in)
195591.4 mm (3.6 in)
195661.0 mm (2.4 in)
1957109.2 mm (4.3 in)
195863.5 mm (2.5 in)
1959139.7 mm (5.5 in)
196036.6 mm (1.4 in)
196148.3 mm (1.9 in)
196290.2 mm (3.6 in)
196372.1 mm (2.8 in)
196492.7 mm (3.6 in)
196572.4 mm (2.9 in)
196694.7 mm (3.7 in)
1967180.3 mm (7.1 in)
196865.0 mm (2.6 in)
196969.9 mm (2.8 in)
1970122.7 mm (4.8 in)
197192.2 mm (3.6 in)
197248.8 mm (1.9 in)
1973145.3 mm (5.7 in)
1974171.2 mm (6.7 in)
197550.8 mm (2.0 in)
197666.0 mm (2.6 in)
1977150.9 mm (5.9 in)
197852.6 mm (2.1 in)
197957.2 mm (2.3 in)
1980109.5 mm (4.3 in)
1981151.1 mm (5.9 in)
1982171.7 mm (6.8 in)
1983109.0 mm (4.3 in)
198460.5 mm (2.4 in)
1985110.5 mm (4.4 in)
198673.7 mm (2.9 in)
1987125.2 mm (4.9 in)
198890.2 mm (3.6 in)
198994.7 mm (3.7 in)
199099.1 mm (3.9 in)
1991106.7 mm (4.2 in)
199284.1 mm (3.3 in)
1993116.8 mm (4.6 in)
1994100.8 mm (4.0 in)
199574.7 mm (2.9 in)
1996100.8 mm (4.0 in)
199774.2 mm (2.9 in)
199849.5 mm (1.9 in)
199985.1 mm (3.4 in)
200042.4 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Slidell by year The wettest five days of the year at Slidell, 1947 to 2000. The record is 302.3 mm (11.9 in) in 1981, marked on the chart; the median year is 125.6 mm (4.9 in). 0100200300400195019601970198019902000Record: 302.3 mm (11.9 in) in 1981
The wettest five days of the year at Slidell, 1947 to 2000. The record is 302.3 mm (11.9 in) in 1981, marked on the chart; the median year is 125.6 mm (4.9 in).
Wettest five days (Rx5day) at Slidell by year
YearWettest five days (Rx5day)
194763.2 mm (2.5 in)
194877.3 mm (3.0 in)
1949128.7 mm (5.1 in)
1950122.4 mm (4.8 in)
1951117.8 mm (4.6 in)
195298.3 mm (3.9 in)
195387.6 mm (3.4 in)
195468.3 mm (2.7 in)
1955169.6 mm (6.7 in)
195695.8 mm (3.8 in)
1957230.4 mm (9.1 in)
1958176.3 mm (6.9 in)
1959201.5 mm (7.9 in)
196063.5 mm (2.5 in)
196172.4 mm (2.9 in)
1962149.8 mm (5.9 in)
196387.8 mm (3.5 in)
1964150.4 mm (5.9 in)
1965130.1 mm (5.1 in)
1966155.9 mm (6.1 in)
1967195.8 mm (7.7 in)
196897.2 mm (3.8 in)
196999.9 mm (3.9 in)
1970142.5 mm (5.6 in)
1971106.0 mm (4.2 in)
197274.7 mm (2.9 in)
1973194.3 mm (7.6 in)
1974204.3 mm (8.0 in)
1975110.8 mm (4.4 in)
197671.8 mm (2.8 in)
1977163.9 mm (6.5 in)
1978103.6 mm (4.1 in)
1979102.6 mm (4.0 in)
1980207.5 mm (8.2 in)
1981302.3 mm (11.9 in)
1982188.0 mm (7.4 in)
1983168.7 mm (6.6 in)
1984109.5 mm (4.3 in)
1985186.7 mm (7.4 in)
1986180.3 mm (7.1 in)
1987146.6 mm (5.8 in)
198896.0 mm (3.8 in)
1989214.3 mm (8.4 in)
1990208.9 mm (8.2 in)
1991195.1 mm (7.7 in)
1992104.4 mm (4.1 in)
1993172.7 mm (6.8 in)
1994143.3 mm (5.6 in)
1995112.3 mm (4.4 in)
1996113.8 mm (4.5 in)
1997115.6 mm (4.6 in)
199883.3 mm (3.3 in)
1999128.8 mm (5.1 in)
200073.1 mm (2.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Slidell by year The longest dry spell of the year at Slidell, 1947 to 2000. The record is 73 days in 1950, marked on the chart; the median year is 33 days. 020406080195019601970198019902000Record: 73 days in 1950
The longest dry spell of the year at Slidell, 1947 to 2000. The record is 73 days in 1950, marked on the chart; the median year is 33 days.
Longest dry spell (CDD) at Slidell by year
YearLongest dry spell (CDD)
194717 days
194845 days
194933 days
195073 days
195136 days
195261 days
195343 days
195433 days
195556 days
195641 days
195727 days
195827 days
195933 days
196033 days
196121 days
196231 days
196336 days
196440 days
196528 days
196630 days
196738 days
196823 days
196931 days
197038 days
197144 days
197237 days
197319 days
197430 days
197528 days
197647 days
197728 days
197847 days
197927 days
198039 days
198133 days
198233 days
198329 days
198464 days
198530 days
198634 days
198724 days
198826 days
198937 days
199021 days
199132 days
199224 days
199351 days
199417 days
199535 days
199642 days
199730 days
199864 days
199955 days
200045 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

50 years, 1948 to 1999

A day with at least 86.9 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 202.9 mm (8.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Slidell: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years86.9 mm (3.4 in)
5 years120.0 mm (4.7 in)
10 years141.0 mm (5.6 in)
25 years166.7 mm (6.6 in)
50 years185.1 mm (7.3 in)
100 years202.9 mm (8.0 in)Longer than the 50 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, 50 years of values from 1948 to 1999.

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: 180.3 mm (7.1 in) in 1967; 171.7 mm (6.8 in) in 1982; 171.2 mm (6.7 in) in 1974.

Download the Data

  • Data for Slidell standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Slidell 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 . Last revised (2025-12-31).