Built 2026-10-15 (15 October 2026)

Picayune Weather Records (USC00226921)

Record envelope, standing records and threshold days for Picayune (USC00226921), Mississippi, United States, with 70 years of record.

Key Facts for Picayune

  • Picayune (USC00226921) is a weather station in Mississippi, United States at 30.54 latitude and -89.70 longitude, 20 m (64 ft) above sea level.
  • The station reports from 1948 to 2017, 70 years of record.
  • 1,464 records set at Picayune still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Picayune set a daily record low maximum temperature of 6.7 C (44.1 F) on 8 December 2017.

About the Station

  • Location: Mississippi, United States, 30.54 latitude, -89.70 longitude.
  • Elevation: 20 m (64 ft).
  • Period of record: 1948 to 2017, 70 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Picayune, with 2026 drawn through them The band shows the record high and record low for each calendar day at Picayune. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Picayune. 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 Picayune, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan28.3 C (82.9 F)-14.4 C (6.1 F)n/an/a
Feb29.4 C (84.9 F)-11.7 C (10.9 F)n/an/a
Mar31.7 C (89.1 F)-6.7 C (19.9 F)n/an/a
Apr33.3 C (91.9 F)-3.3 C (26.1 F)n/an/a
May37.2 C (99.0 F)3.3 C (37.9 F)n/an/a
Jun38.9 C (102.0 F)8.3 C (46.9 F)n/an/a
Jul39.4 C (102.9 F)13.9 C (57.0 F)n/an/a
Aug38.9 C (102.0 F)12.2 C (54.0 F)n/an/a
Sep37.2 C (99.0 F)0.6 C (33.1 F)n/an/a
Oct33.9 C (93.0 F)-3.3 C (26.1 F)n/an/a
Nov31.1 C (88.0 F)-7.2 C (19.0 F)n/an/a
Dec30.6 C (87.1 F)-13.3 C (8.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Picayune by the year they were set 1,464 records at Picayune still stand. 1951 holds the most, with 56. 02040601948: 241949: 261950: 481951: 561952: 371953: 241954: 351955: 371956: 231957: 201958: 261959: 191960: 281961: 181962: 411963: 331964: 241965: 151966: 111967: 321968: 101969: 251970: 181971: 221972: 301973: 231974: 111975: 151976: 151977: 191978: 121979: 131980: 141981: 201982: 241983: 171984: 381985: 161986: 161987: 221988: 211989: 341990: 151991: 321992: 171993: 131994: 61995: 131996: 331997: 171998: 221999: 102000: 282001: 192002: 192003: 132004: 392005: 372006: 162007: 182008: 72010: 152011: 172015: 132016: 162017: 171948195519621969197619831990199720042015
1,464 records at Picayune still stand. 1951 holds the most, with 56.
Standing records at Picayune by the year they were set
Year setStanding records
194824
194926
195048
195156
195237
195324
195435
195537
195623
195720
195826
195919
196028
196118
196241
196333
196424
196515
196611
196732
196810
196925
197018
197122
197230
197323
197411
197515
197615
197719
197812
197913
198014
198120
198224
198317
198438
198516
198616
198722
198821
198934
199015
199132
199217
199313
19946
199513
199633
199717
199822
199910
200028
200119
200219
200313
200439
200537
200616
200718
20087
201015
201117
201513
201616
201717

All-Time Record Progression

4 new records
When Picayune set new all-time records 4 all-time records were set at Picayune between 26 August 1984 and 2 July 2016. Each dot is a new record. Record high minimum temperatureRecord low maximum temperatureRecord daily precipitation26 August 1984: Record high minimum temperature 28.3 C (82.9 F)23 December 1989: Record low maximum temperature -6.1 C (21.0 F)28 October 1991: Record daily precipitation 264.2 mm (10.4 in)2 July 2016: Record high minimum temperature 28.9 C (84.0 F)1985199019952000200520102015
4 all-time records were set at Picayune between 26 August 1984 and 2 July 2016. Each dot is a new record.
When Picayune set new all-time records
DateKindDetail
1984-08-26Record high minimum temperatureRecord high minimum temperature 28.3 C (82.9 F)
1989-12-23Record low maximum temperatureRecord low maximum temperature -6.1 C (21.0 F)
1991-10-28Record daily precipitationRecord daily precipitation 264.2 mm (10.4 in)
2016-07-02Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Oct: 264.2 mm (10.4 in)
Record daily precipitation for each month at Picayune The wettest day on record for each calendar month at Picayune. The most was 264.2 mm (10.4 in) on 28 October 1991. 0100200300 Jan: 165.1 mm (6.5 in), 7 January 1998 Jan Feb: 122.4 mm (4.8 in), 10 February 1981 Feb Mar: 205.7 mm (8.1 in), 17 March 1980 Mar Apr: 190.5 mm (7.5 in), 26 April 2004 Apr May: 192.3 mm (7.6 in), 18 May 1958 May Jun: 151.1 mm (5.9 in), 10 June 2001 Jun Jul: 129.0 mm (5.1 in), 1 July 2003 Jul Aug: 237.7 mm (9.4 in), 18 August 1969 Aug Sep: 166.9 mm (6.6 in), 26 September 2002 Sep Oct: 264.2 mm (10.4 in), 28 October 1991 Oct Nov: 152.4 mm (6.0 in), 20 November 2000 Nov Dec: 165.1 mm (6.5 in), 29 December 1996 Dec
The wettest day on record for each calendar month at Picayune. The most was 264.2 mm (10.4 in) on 28 October 1991.
Record daily precipitation for each month at Picayune
MonthRecord daily precipitation (mm)Date
Jan165.1 mm (6.5 in)7 January 1998
Feb122.4 mm (4.8 in)10 February 1981
Mar205.7 mm (8.1 in)17 March 1980
Apr190.5 mm (7.5 in)26 April 2004
May192.3 mm (7.6 in)18 May 1958
Jun151.1 mm (5.9 in)10 June 2001
Jul129.0 mm (5.1 in)1 July 2003
Aug237.7 mm (9.4 in)18 August 1969
Sep166.9 mm (6.6 in)26 September 2002
Oct264.2 mm (10.4 in)28 October 1991
Nov152.4 mm (6.0 in)20 November 2000
Dec165.1 mm (6.5 in)29 December 1996

Period of Record Coverage

1948 to 2017
Days with data per year at Picayune 67 years of record at Picayune, 1948 to 2017. 18 years have data for under 90 percent of days and are left out of rankings: 1956, 1957, 1961, 1978, 1979, 1980, 1981, 1985 and others. 1948: 363 of 366 days1949: 359 of 365 days1950: 364 of 365 days1951: 362 of 365 days1952: 364 of 366 days1953: 363 of 365 days1954: 353 of 365 days1955: 356 of 365 days1956: 306 of 366 days1957: 214 of 365 days1958: 365 of 365 days1959: 364 of 365 days1960: 365 of 366 days1961: 247 of 365 days1962: 356 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 362 of 365 days1966: 350 of 365 days1967: 353 of 365 days1968: 354 of 366 days1969: 337 of 365 days1970: 330 of 365 days1971: 361 of 365 days1972: 365 of 366 days1973: 363 of 365 days1974: 334 of 365 days1975: 335 of 365 days1976: 360 of 366 days1977: 361 of 365 days1978: 287 of 365 days1979: 250 of 365 days1980: 277 of 366 days1981: 328 of 365 days1982: 342 of 365 days1983: 344 of 365 days1984: 335 of 366 days1985: 256 of 365 days1986: 356 of 365 days1987: 365 of 365 days1988: 364 of 366 days1989: 363 of 365 days1990: 365 of 365 days1991: 362 of 365 days1992: 239 of 366 days1993: 354 of 365 days1994: 339 of 365 days1995: 357 of 365 days1996: 363 of 366 days1997: 362 of 365 days1998: 349 of 365 days1999: 322 of 365 days2000: 344 of 366 days2001: 363 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 352 of 366 days2005: 295 of 365 days2006: 276 of 365 days2007: 296 of 365 days2008: 118 of 366 days2009: 1 of 365 days2010: 170 of 365 days2011: 189 of 365 days2015: 123 of 365 days2016: 348 of 366 days2017: 334 of 365 days1950196019701980199020002010
67 years of record at Picayune, 1948 to 2017. 18 years have data for under 90 percent of days and are left out of rankings: 1956, 1957, 1961, 1978, 1979, 1980, 1981, 1985 and others.
Days with data per year at Picayune
YearDays with dataShare of yearComplete
194836399%Yes
194935998%Yes
1950364100%Yes
195136299%Yes
195236499%Yes
195336399%Yes
195435397%Yes
195535698%Yes
195630684%No
195721459%No
1958365100%Yes
1959364100%Yes
1960365100%Yes
196124768%No
196235698%Yes
1963365100%Yes
1964366100%Yes
196536299%Yes
196635096%Yes
196735397%Yes
196835497%Yes
196933792%Yes
197033090%Yes
197136199%Yes
1972365100%Yes
197336399%Yes
197433492%Yes
197533592%Yes
197636098%Yes
197736199%Yes
197828779%No
197925068%No
198027776%No
198132890%No
198234294%Yes
198334494%Yes
198433592%Yes
198525670%No
198635698%Yes
1987365100%Yes
198836499%Yes
198936399%Yes
1990365100%Yes
199136299%Yes
199223965%No
199335497%Yes
199433993%Yes
199535798%Yes
199636399%Yes
199736299%Yes
199834996%Yes
199932288%No
200034494%Yes
200136399%Yes
2002364100%Yes
2003365100%Yes
200435296%Yes
200529581%No
200627676%No
200729681%No
200811832%No
200910%No
201017047%No
201118952%No
201512334%No
201634895%Yes
201733492%Yes

Latest Records

20
Latest records at Picayune
DateStationRecordValueBeat old record byOld record stoodSignificance
8 December 2017Picayune, USdaily low max6.7 C (44.1 F)2.7 C (4.9 F)40 years24 of 100 (Routine)
7 December 2017Picayune, USdaily low max6.1 C (43.0 F)1.7 C (3.1 F)67 years30 of 100 (Routine)
6 December 2017Picayune, USdaily high max27.8 C (82.0 F)0.6 C (1.1 F)66 years27 of 100 (Routine)
30 November 2017Picayune, USdaily high max (Tie)26.7 C (80.1 F)tie50 years5 of 100 (Routine)
21 October 2017Picayune, USdaily rain45.0 mm (1.8 in)1.1 mm (0.04 in)58 years24 of 100 (Routine)
12 October 2017Picayune, USdaily high max (Tie)32.2 C (90.0 F)tie44 years5 of 100 (Routine)
11 October 2017Picayune, USdaily high min21.7 C (71.1 F)0.6 C (1.1 F)68 years28 of 100 (Routine)
10 October 2017Picayune, USdaily high min22.8 C (73.0 F)1.1 C (2.0 F)15 years13 of 100 (Routine)
9 October 2017Picayune, USdaily high min22.8 C (73.0 F)0.6 C (1.1 F)10 years11 of 100 (Routine)
9 September 2017Picayune, USdaily low min13.3 C (55.9 F)0.6 C (1.1 F)64 years27 of 100 (Routine)
30 August 2017Picayune, USdaily low max24.4 C (75.9 F)1.7 C (3.1 F)67 years34 of 100 (Routine)
30 August 2017Picayune, USdaily rain45.7 mm (1.8 in)12.7 mm (0.5 in)7 years16 of 100 (Routine)
29 August 2017Picayune, USdaily low max (Tie)24.4 C (75.9 F)tie7 years2 of 100 (Routine)
28 August 2017Picayune, USdaily low max (Tie)27.8 C (82.0 F)tie32 years4 of 100 (Routine)
11 August 2017Picayune, USdaily low max27.8 C (82.0 F)1.1 C (2.0 F)56 years28 of 100 (Routine)
29 July 2017Picayune, USdaily high min25.0 C (77.0 F)1.1 C (2.0 F)55 years30 of 100 (Routine)
1 July 2017Picayune, USdaily high min (Tie)23.9 C (75.0 F)tie50 years5 of 100 (Routine)
23 June 2017Picayune, USdaily high min25.6 C (78.1 F)2.3 C (4.1 F)40 years28 of 100 (Routine)
21 June 2017Picayune, USdaily rain106.7 mm (4.2 in)73.9 mm (2.9 in)54 years63 of 100 (Major)
7 June 2017Picayune, USdaily rain80.5 mm (3.2 in)32.2 mm (1.3 in)16 years28 of 100 (Routine)

Climate Trend

44 complete years, 1948 to 2016
Annual mean temperature at Picayune as warming stripes, 1948 to 2016 One stripe for each of 44 complete years at Picayune, 1948 to 2016. Blue stripes are years cooler than the station's own mean of 19.4 C (67.0 F); red stripes are warmer. The coolest year was 2004, at 17.7 C (63.8 F), and the warmest was 1972, at 20.8 C (69.4 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1948: 20.0 C, +0.5 C from the station mean1949: 20.5 C, +1.0 C from the station mean1950: 19.6 C, +0.2 C from the station mean1951: 19.8 C, +0.3 C from the station mean1952: 19.3 C, -0.1 C from the station mean1953: 19.8 C, +0.4 C from the station mean1954: 19.8 C, +0.4 C from the station mean1955: 19.9 C, +0.5 C from the station mean1958: 18.7 C, -0.8 C from the station mean1959: 19.3 C, -0.1 C from the station mean1960: 19.2 C, -0.3 C from the station mean1962: 19.9 C, +0.4 C from the station mean1963: 19.7 C, +0.2 C from the station mean1964: 19.9 C, +0.4 C from the station mean1965: 20.4 C, +0.9 C from the station mean1966: 19.5 C, 0.0 C from the station mean1967: 19.8 C, +0.4 C from the station mean1968: 19.2 C, -0.3 C from the station mean1969: 19.7 C, +0.3 C from the station mean1971: 20.2 C, +0.8 C from the station mean1972: 20.8 C, +1.3 C from the station mean1973: 20.2 C, +0.7 C from the station mean1974: 20.2 C, +0.8 C from the station mean1975: 20.2 C, +0.7 C from the station mean1976: 18.6 C, -0.9 C from the station mean1986: 19.8 C, +0.4 C from the station mean1987: 18.7 C, -0.7 C from the station mean1988: 18.3 C, -1.1 C from the station mean1989: 18.6 C, -0.9 C from the station mean1990: 19.5 C, +0.1 C from the station mean1991: 18.4 C, -1.1 C from the station mean1993: 18.8 C, -0.6 C from the station mean1994: 19.4 C, -0.1 C from the station mean1995: 19.3 C, -0.1 C from the station mean1996: 18.9 C, -0.5 C from the station mean1997: 18.9 C, -0.5 C from the station mean1998: 20.3 C, +0.9 C from the station mean1999: 19.8 C, +0.3 C from the station mean2000: 19.4 C, 0.0 C from the station mean2001: 18.7 C, -0.7 C from the station mean2002: 18.8 C, -0.7 C from the station mean2003: 17.9 C, -1.5 C from the station mean2004: 17.7 C, -1.8 C from the station mean2016: 20.0 C, +0.6 C from the station mean1948196019701980199020002010
One stripe for each of 44 complete years at Picayune, 1948 to 2016. Blue stripes are years cooler than the station's own mean of 19.4 C (67.0 F); red stripes are warmer. The coolest year was 2004, at 17.7 C (63.8 F), and the warmest was 1972, at 20.8 C (69.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Picayune as warming stripes, 1948 to 2016
YearAnnual mean temperatureDifference from the station mean
194820.0 C+0.53 C
194920.5 C+1.04 C
195019.6 C+0.17 C
195119.8 C+0.32 C
195219.3 C-0.11 C
195319.8 C+0.38 C
195419.8 C+0.40 C
195519.9 C+0.45 C
195818.7 C-0.78 C
195919.3 C-0.12 C
196019.2 C-0.28 C
196219.9 C+0.44 C
196319.7 C+0.23 C
196419.9 C+0.42 C
196520.4 C+0.92 C
196619.5 C+0.02 C
196719.8 C+0.40 C
196819.2 C-0.26 C
196919.7 C+0.29 C
197120.2 C+0.76 C
197220.8 C+1.33 C
197320.2 C+0.72 C
197420.2 C+0.78 C
197520.2 C+0.74 C
197618.6 C-0.89 C
198619.8 C+0.38 C
198718.7 C-0.74 C
198818.3 C-1.12 C
198918.6 C-0.87 C
199019.5 C+0.07 C
199118.4 C-1.06 C
199318.8 C-0.64 C
199419.4 C-0.06 C
199519.3 C-0.10 C
199618.9 C-0.50 C
199718.9 C-0.52 C
199820.3 C+0.88 C
199919.8 C+0.34 C
200019.4 C-0.03 C
200118.7 C-0.74 C
200218.8 C-0.67 C
200317.9 C-1.50 C
200417.7 C-1.76 C
201620.0 C+0.57 C

The annual mean temperature here has fallen by 0.2 C (0.1 to 0.3) per decade over 1948 to 2016. In Fahrenheit: 0.3 F (0.1 to 0.5) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Picayune
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.2 C (-0.3 to -0.1) per decade-0.3 F (-0.5 to -0.1) per decade1948 to 201644Fall
Mean daily maximum-0.3 C (-0.4 to -0.2) per decade-0.5 F (-0.8 to -0.3) per decade1948 to 201644Fall
Mean daily minimum-0.03 C (-0.15 to 0.08) per decade-0.1 F (-0.3 to 0.1) per decade1948 to 201644Not clearly different from zero

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

1948 to 2017
Yearly extremes at Picayune: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)196936.7 C (98.1 F)67
Coldest night (TNn)-14.4 C (6.1 F)1962-6.7 C (19.9 F)67
Wettest day (Rx1day)264.2 mm (10.4 in)1991104.1 mm (4.1 in)67
Wettest five days (Rx5day)297.7 mm (11.7 in)2000151.2 mm (6.0 in)67
Longest dry spell (CDD)56 days201123 days67

Hottest day (TXx)

Hottest day (TXx) at Picayune by year The hottest day of the year at Picayune, 1948 to 2017. The record is 39.4 C (102.9 F) in 1969, marked on the chart; the median year is 36.7 C (98.1 F). 2025303540196019802000Record: 39.4 C (102.9 F) in 1969
The hottest day of the year at Picayune, 1948 to 2017. The record is 39.4 C (102.9 F) in 1969, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Picayune by year
YearHottest day (TXx)
194837.8 C (100.0 F)
194936.1 C (97.0 F)
195036.1 C (97.0 F)
195137.8 C (100.0 F)
195237.2 C (99.0 F)
195337.8 C (100.0 F)
195438.3 C (100.9 F)
195536.7 C (98.1 F)
195636.7 C (98.1 F)
195738.9 C (102.0 F)
195836.1 C (97.0 F)
195935.6 C (96.1 F)
196038.3 C (100.9 F)
196135.6 C (96.1 F)
196238.9 C (102.0 F)
196337.8 C (100.0 F)
196436.7 C (98.1 F)
196536.7 C (98.1 F)
196636.7 C (98.1 F)
196736.7 C (98.1 F)
196836.1 C (97.0 F)
196939.4 C (102.9 F)
197037.8 C (100.0 F)
197136.1 C (97.0 F)
197237.8 C (100.0 F)
197336.1 C (97.0 F)
197436.1 C (97.0 F)
197535.6 C (96.1 F)
197636.1 C (97.0 F)
197736.7 C (98.1 F)
197836.7 C (98.1 F)
197936.7 C (98.1 F)
198039.4 C (102.9 F)
198137.2 C (99.0 F)
198235.6 C (96.1 F)
198335.6 C (96.1 F)
198436.7 C (98.1 F)
198538.3 C (100.9 F)
198639.4 C (102.9 F)
198735.0 C (95.0 F)
198836.7 C (98.1 F)
198935.6 C (96.1 F)
199036.7 C (98.1 F)
199133.9 C (93.0 F)
199234.4 C (93.9 F)
199335.6 C (96.1 F)
199434.4 C (93.9 F)
199537.2 C (99.0 F)
199635.6 C (96.1 F)
199738.3 C (100.9 F)
199837.8 C (100.0 F)
199937.2 C (99.0 F)
200039.4 C (102.9 F)
200135.0 C (95.0 F)
200236.1 C (97.0 F)
200331.7 C (89.1 F)
200436.1 C (97.0 F)
200536.1 C (97.0 F)
200637.8 C (100.0 F)
200738.3 C (100.9 F)
200832.8 C (91.0 F)
200923.9 C (75.0 F)
201037.2 C (99.0 F)
201138.3 C (100.9 F)
201537.2 C (99.0 F)
201636.1 C (97.0 F)
201735.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Picayune by year The coldest night of the year at Picayune, 1948 to 2017. The record is -14.4 C (6.1 F) in 1962, marked on the chart; the median year is -6.7 C (19.9 F). -20-1001020196019802000Record: -14.4 C (6.1 F) in 1962
The coldest night of the year at Picayune, 1948 to 2017. The record is -14.4 C (6.1 F) in 1962, marked on the chart; the median year is -6.7 C (19.9 F).
Coldest night (TNn) at Picayune by year
YearColdest night (TNn)
1948-8.9 C (16.0 F)
1949-3.3 C (26.1 F)
1950-7.2 C (19.0 F)
1951-11.1 C (12.0 F)
1952-6.1 C (21.0 F)
1953-5.0 C (23.0 F)
1954-5.6 C (21.9 F)
1955-7.8 C (18.0 F)
1956-5.0 C (23.0 F)
1957-9.4 C (15.1 F)
1958-10.0 C (14.0 F)
1959-7.8 C (18.0 F)
1960-7.8 C (18.0 F)
1961-7.8 C (18.0 F)
1962-14.4 C (6.1 F)
1963-12.2 C (10.0 F)
1964-9.4 C (15.1 F)
1965-6.7 C (19.9 F)
1966-10.6 C (12.9 F)
1967-3.9 C (25.0 F)
1968-5.0 C (23.0 F)
1969-6.7 C (19.9 F)
1970-8.3 C (17.1 F)
1971-5.6 C (21.9 F)
1972-6.7 C (19.9 F)
1973-7.2 C (19.0 F)
1974-4.4 C (24.1 F)
1975-7.2 C (19.0 F)
1976-7.8 C (18.0 F)
1977-10.6 C (12.9 F)
1978-6.7 C (19.9 F)
1979-8.3 C (17.1 F)
1980-6.7 C (19.9 F)
1981-10.6 C (12.9 F)
1982-12.8 C (9.0 F)
1983-12.2 C (10.0 F)
1984-7.8 C (18.0 F)
1985-13.9 C (7.0 F)
1986-6.7 C (19.9 F)
1987-4.4 C (24.1 F)
1988-7.2 C (19.0 F)
1989-13.3 C (8.1 F)
1990-4.4 C (24.1 F)
1991-5.6 C (21.9 F)
1992-5.6 C (21.9 F)
1993-5.6 C (21.9 F)
1994-6.1 C (21.0 F)
1995-5.0 C (23.0 F)
1996-11.7 C (10.9 F)
1997-7.2 C (19.0 F)
1998-2.8 C (27.0 F)
1999-6.7 C (19.9 F)
2000-7.2 C (19.0 F)
2001-7.8 C (18.0 F)
2002-7.2 C (19.0 F)
2003-6.7 C (19.9 F)
2004-6.1 C (21.0 F)
2005-4.4 C (24.1 F)
2006-5.0 C (23.0 F)
2007-4.4 C (24.1 F)
2008-1.7 C (28.9 F)
200916.7 C (62.1 F)
2010-7.2 C (19.0 F)
2011-6.7 C (19.9 F)
2015-1.1 C (30.0 F)
2016-4.4 C (24.1 F)
2017-7.2 C (19.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Picayune by year The wettest day of the year at Picayune, 1948 to 2017. The record is 264.2 mm (10.4 in) in 1991, marked on the chart; the median year is 104.1 mm (4.1 in). 0100200300196019802000Record: 264.2 mm (10.4 in) in 1991
The wettest day of the year at Picayune, 1948 to 2017. The record is 264.2 mm (10.4 in) in 1991, marked on the chart; the median year is 104.1 mm (4.1 in).
Wettest day (Rx1day) at Picayune by year
YearWettest day (Rx1day)
1948107.2 mm (4.2 in)
194986.4 mm (3.4 in)
195064.8 mm (2.6 in)
1951163.8 mm (6.4 in)
195286.4 mm (3.4 in)
1953129.5 mm (5.1 in)
195482.6 mm (3.3 in)
1955152.4 mm (6.0 in)
195688.9 mm (3.5 in)
1957156.5 mm (6.2 in)
1958192.3 mm (7.6 in)
195984.8 mm (3.3 in)
196070.1 mm (2.8 in)
196184.6 mm (3.3 in)
196254.1 mm (2.1 in)
196357.4 mm (2.3 in)
1964130.0 mm (5.1 in)
196598.6 mm (3.9 in)
1966106.4 mm (4.2 in)
196797.5 mm (3.8 in)
196843.7 mm (1.7 in)
1969237.7 mm (9.4 in)
197086.4 mm (3.4 in)
197170.6 mm (2.8 in)
1972104.1 mm (4.1 in)
1973107.2 mm (4.2 in)
1974132.6 mm (5.2 in)
197592.7 mm (3.6 in)
197671.1 mm (2.8 in)
1977107.2 mm (4.2 in)
1978174.0 mm (6.9 in)
197976.2 mm (3.0 in)
1980205.7 mm (8.1 in)
1981122.4 mm (4.8 in)
1982113.8 mm (4.5 in)
1983101.1 mm (4.0 in)
1984104.4 mm (4.1 in)
1985152.4 mm (6.0 in)
198655.1 mm (2.2 in)
198762.2 mm (2.4 in)
1988101.6 mm (4.0 in)
198977.5 mm (3.1 in)
199083.8 mm (3.3 in)
1991264.2 mm (10.4 in)
1992106.7 mm (4.2 in)
1993142.2 mm (5.6 in)
1994114.3 mm (4.5 in)
1995114.3 mm (4.5 in)
1996177.8 mm (7.0 in)
199788.9 mm (3.5 in)
1998165.1 mm (6.5 in)
199950.8 mm (2.0 in)
2000152.4 mm (6.0 in)
2001151.1 mm (5.9 in)
2002166.9 mm (6.6 in)
2003149.9 mm (5.9 in)
2004190.5 mm (7.5 in)
2005114.3 mm (4.5 in)
200676.2 mm (3.0 in)
2007209.6 mm (8.3 in)
200851.3 mm (2.0 in)
20090.0 mm (0.00 in)
201045.7 mm (1.8 in)
201187.4 mm (3.4 in)
201581.3 mm (3.2 in)
2016104.1 mm (4.1 in)
2017106.7 mm (4.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Picayune by year The wettest five days of the year at Picayune, 1948 to 2017. The record is 297.7 mm (11.7 in) in 2000, marked on the chart; the median year is 151.2 mm (6.0 in). 0100200300196019802000Record: 297.7 mm (11.7 in) in 2000
The wettest five days of the year at Picayune, 1948 to 2017. The record is 297.7 mm (11.7 in) in 2000, marked on the chart; the median year is 151.2 mm (6.0 in).
Wettest five days (Rx5day) at Picayune by year
YearWettest five days (Rx5day)
1948283.7 mm (11.2 in)
1949100.3 mm (3.9 in)
1950100.4 mm (4.0 in)
1951164.8 mm (6.5 in)
1952114.8 mm (4.5 in)
1953210.2 mm (8.3 in)
1954160.8 mm (6.3 in)
1955285.5 mm (11.2 in)
1956172.4 mm (6.8 in)
1957229.9 mm (9.1 in)
1958250.7 mm (9.9 in)
1959117.3 mm (4.6 in)
1960124.5 mm (4.9 in)
1961190.5 mm (7.5 in)
196291.4 mm (3.6 in)
1963113.3 mm (4.5 in)
1964220.2 mm (8.7 in)
1965101.1 mm (4.0 in)
1966151.2 mm (6.0 in)
1967153.4 mm (6.0 in)
196870.4 mm (2.8 in)
1969254.7 mm (10.0 in)
1970130.3 mm (5.1 in)
1971103.9 mm (4.1 in)
1972139.7 mm (5.5 in)
1973149.1 mm (5.9 in)
1974199.7 mm (7.9 in)
1975137.7 mm (5.4 in)
197696.3 mm (3.8 in)
1977141.8 mm (5.6 in)
1978198.9 mm (7.8 in)
1979119.9 mm (4.7 in)
1980228.3 mm (9.0 in)
1981173.7 mm (6.8 in)
1982126.0 mm (5.0 in)
1983147.2 mm (5.8 in)
1984111.6 mm (4.4 in)
1985185.4 mm (7.3 in)
1986107.9 mm (4.2 in)
1987110.0 mm (4.3 in)
1988194.7 mm (7.7 in)
1989178.8 mm (7.0 in)
1990131.6 mm (5.2 in)
1991289.9 mm (11.4 in)
1992136.2 mm (5.4 in)
1993156.2 mm (6.1 in)
1994140.9 mm (5.5 in)
1995132.2 mm (5.2 in)
1996206.9 mm (8.1 in)
1997177.7 mm (7.0 in)
1998250.0 mm (9.8 in)
199983.8 mm (3.3 in)
2000297.7 mm (11.7 in)
2001295.2 mm (11.6 in)
2002245.7 mm (9.7 in)
2003191.2 mm (7.5 in)
2004194.6 mm (7.7 in)
2005134.2 mm (5.3 in)
200694.0 mm (3.7 in)
2007213.9 mm (8.4 in)
2008100.8 mm (4.0 in)
20090.0 mm (0.00 in)
2010112.0 mm (4.4 in)
2011220.0 mm (8.7 in)
2015154.9 mm (6.1 in)
2016123.2 mm (4.9 in)
2017166.6 mm (6.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Picayune by year The longest dry spell of the year at Picayune, 1948 to 2017. The record is 56 days in 2011, marked on the chart; the median year is 23 days. 0204060196019802000Record: 56 days in 2011
The longest dry spell of the year at Picayune, 1948 to 2017. The record is 56 days in 2011, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Picayune by year
YearLongest dry spell (CDD)
194820 days
194923 days
195024 days
195125 days
195244 days
195326 days
195416 days
195527 days
195626 days
195713 days
195815 days
195916 days
196024 days
196130 days
196230 days
196321 days
196422 days
196525 days
196624 days
196728 days
196822 days
196918 days
197020 days
197119 days
197228 days
197315 days
197418 days
197519 days
197628 days
197722 days
197838 days
197931 days
198026 days
198123 days
198226 days
198319 days
198419 days
198523 days
198622 days
198726 days
198821 days
198917 days
199016 days
199128 days
199212 days
199316 days
199417 days
199515 days
199617 days
199734 days
199836 days
199934 days
200028 days
200139 days
200234 days
200325 days
200422 days
200553 days
200639 days
200728 days
200811 days
200920 days
201023 days
201156 days
201526 days
201620 days
201721 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

43 years with a frost

Across 43 years with a frost, the median last spring frost at Picayune falls on 13 March and the median first autumn frost on 14 November, which leaves a median of 253 days between them.

Fitted over all years, the growing season changes by +4.1 days per decade at this station.

Frost dates and growing season at Picayune
MeasureMedian, all yearsEarliest periodRecent period (1964 to 2016)Recent against earliestFitted trend
Last spring frost13 Marchn/a7 Marchn/a-0.5 days per decade
First autumn frost14 Novembern/a18 Novembern/a+3.6 days per decade
Growing days253 daysn/a256 daysn/a+4.1 days per decade

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

58 years, 1948 to 2017

A day with at least 106.0 mm (4.2 in) of rain is expected about once in 2 years. A day with at least 273.8 mm (10.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Picayune: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years106.0 mm (4.2 in)
5 years147.9 mm (5.8 in)
10 years176.8 mm (7.0 in)
25 years214.8 mm (8.5 in)
50 years244.0 mm (9.6 in)
100 years273.8 mm (10.8 in)Longer than the 58 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, 58 years of values from 1948 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: 264.2 mm (10.4 in) in 1991; 237.7 mm (9.4 in) in 1969; 205.7 mm (8.1 in) in 1980.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Picayune, at 2001. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 2001 ran 0.7 C (1.2 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Picayune, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
2001-0.7-1.2likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

  • Data for Picayune standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Picayune 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).