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Greenville ASOS Weather Records (USW00013939)

Record envelope, standing records and threshold days for Greenville ASOS (USW00013939), Mississippi, United States, with 74 years of record.

Key Facts for Greenville ASOS

  • Greenville ASOS (USW00013939) is a weather station in Mississippi, United States at 33.49 latitude and -90.98 longitude, 38 m (124 ft) above sea level.
  • The station reports from 1953 to 2026, 74 years of record.
  • 1,464 records set at Greenville ASOS still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Greenville ASOS set a daily record high maximum temperature of 34.4 C (93.9 F) on 9 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Mississippi, United States, 33.49 latitude, -90.98 longitude.
  • Elevation: 38 m (124 ft).
  • Period of record: 1953 to 2026, 74 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

47 days at or beyond a record
Daily record high and record low at Greenville ASOS, with 2026 drawn through them The band shows the record high and record low for each calendar day at Greenville ASOS. The lines show the 2026 daily maximum and minimum. 47 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Greenville ASOS. The lines show the 2026 daily maximum and minimum. 47 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Greenville ASOS, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan27.8 C (82.0 F)-13.2 C (8.2 F)24.4 C (75.9 F)-8.9 C (16.0 F)
Feb29.4 C (84.9 F)-12.2 C (10.0 F)27.2 C (81.0 F)-8.3 C (17.1 F)
Mar30.6 C (87.1 F)-6.1 C (21.0 F)29.4 C (84.9 F)-3.3 C (26.1 F)
Apr32.8 C (91.0 F)-1.1 C (30.0 F)30.0 C (86.0 F)5.0 C (41.0 F)
May35.6 C (96.1 F)2.2 C (36.0 F)34.4 C (93.9 F)7.8 C (46.0 F)
Jun38.9 C (102.0 F)11.1 C (52.0 F)35.6 C (96.1 F)17.2 C (63.0 F)
Jul39.4 C (102.9 F)15.6 C (60.1 F)37.2 C (99.0 F)20.0 C (68.0 F)
Aug41.1 C (106.0 F)10.0 C (50.0 F)40.0 C (104.0 F)17.8 C (64.0 F)
Sep38.3 C (100.9 F)5.0 C (41.0 F)39.4 C (102.9 F)13.9 C (57.0 F)
Oct37.2 C (99.0 F)-1.6 C (29.1 F)35.6 C (96.1 F)13.3 C (55.9 F)
Nov31.1 C (88.0 F)-8.3 C (17.1 F)n/an/a
Dec28.9 C (84.0 F)-12.1 C (10.2 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Greenville ASOS by the year they were set 1,464 records at Greenville ASOS still stand. 1954 holds the most, with 104. 0501001501953: 221954: 1041955: 591956: 391957: 331958: 371959: 321960: 322001: 122002: 402003: 372004: 492005: 452006: 332007: 402008: 562009: 392010: 462011: 702012: 532013: 412014: 452015: 462016: 252017: 482018: 412019: 292020: 262021: 522022: 512023: 442024: 642025: 402026: 34195319572001200520092013201720212025
1,464 records at Greenville ASOS still stand. 1954 holds the most, with 104.
Standing records at Greenville ASOS by the year they were set
Year setStanding records
195322
1954104
195559
195639
195733
195837
195932
196032
200112
200240
200337
200449
200545
200633
200740
200856
200939
201046
201170
201253
201341
201445
201546
201625
201748
201841
201929
202026
202152
202251
202344
202464
202540
202634

All-Time Record Progression

1 new records
When Greenville ASOS set new all-time records 1 all-time records were set at Greenville ASOS between 24 June 2024 and 24 June 2024. Each dot is a new record. Record high minimum temperature24 June 2024: Record high minimum temperature 27.8 C (82.0 F)2025
1 all-time records were set at Greenville ASOS between 24 June 2024 and 24 June 2024. Each dot is a new record.
When Greenville ASOS set new all-time records
DateKindDetail
2024-06-24Record high minimum temperatureRecord high minimum temperature 27.8 C (82.0 F)

Wettest Day of Each Month

Sep: 227.3 mm (8.9 in)
Record daily precipitation for each month at Greenville ASOS The wettest day on record for each calendar month at Greenville ASOS. The most was 227.3 mm (8.9 in) on 3 September 2008. 0100200300 Jan: 101.6 mm (4.0 in), 24 January 2002 Jan Feb: 133.4 mm (5.3 in), 10 February 2020 Feb Mar: 143.3 mm (5.6 in), 9 March 2016 Mar Apr: 128.8 mm (5.1 in), 5 April 2025 Apr May: 147.3 mm (5.8 in), 9 May 2019 May Jun: 88.9 mm (3.5 in), 24 June 2019 Jun Jul: 115.6 mm (4.6 in), 24 July 1959 Jul Aug: 109.0 mm (4.3 in), 20 August 2018 Aug Sep: 227.3 mm (8.9 in), 3 September 2008 Sep Oct: 131.6 mm (5.2 in), 10 October 2020 Oct Nov: 88.9 mm (3.5 in), 28 November 2001 Nov Dec: 82.6 mm (3.3 in), 30 December 2018 Dec
The wettest day on record for each calendar month at Greenville ASOS. The most was 227.3 mm (8.9 in) on 3 September 2008.
Record daily precipitation for each month at Greenville ASOS
MonthRecord daily precipitation (mm)Date
Jan101.6 mm (4.0 in)24 January 2002
Feb133.4 mm (5.3 in)10 February 2020
Mar143.3 mm (5.6 in)9 March 2016
Apr128.8 mm (5.1 in)5 April 2025
May147.3 mm (5.8 in)9 May 2019
Jun88.9 mm (3.5 in)24 June 2019
Jul115.6 mm (4.6 in)24 July 1959
Aug109.0 mm (4.3 in)20 August 2018
Sep227.3 mm (8.9 in)3 September 2008
Oct131.6 mm (5.2 in)10 October 2020
Nov88.9 mm (3.5 in)28 November 2001
Dec82.6 mm (3.3 in)30 December 2018

Period of Record Coverage

1953 to 2026
Days with data per year at Greenville ASOS 34 years of record at Greenville ASOS, 1953 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1953, 1960, 2001, 2026. 1953: 184 of 365 days1954: 364 of 365 days1955: 364 of 365 days1956: 364 of 366 days1957: 365 of 365 days1958: 364 of 365 days1959: 365 of 365 days1960: 288 of 366 days2001: 149 of 365 days2002: 343 of 365 days2003: 364 of 365 days2004: 356 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 364 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 364 of 365 days2024: 365 of 366 days2025: 365 of 365 days2026: 276 of 365 days1955196020052010201520202025
34 years of record at Greenville ASOS, 1953 to 2026. 4 years have data for under 90 percent of days and are left out of rankings: 1953, 1960, 2001, 2026.
Days with data per year at Greenville ASOS
YearDays with dataShare of yearComplete
195318450%No
1954364100%Yes
1955364100%Yes
195636499%Yes
1957365100%Yes
1958364100%Yes
1959365100%Yes
196028879%No
200114941%No
200234394%Yes
2003364100%Yes
200435697%Yes
2005365100%Yes
2006365100%Yes
2007364100%Yes
2008366100%Yes
2009364100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023364100%Yes
2024365100%Yes
2025365100%Yes
202627676%No

Latest Records

20
Latest records at Greenville ASOS
DateStationRecordValueBeat old record byOld record stoodSignificance
9 October 2026Greenville ASOS, USdaily high max (Provisional)34.4 C (93.9 F)1.1 C (2.0 F)16 years13 of 100 (Routine)
8 October 2026Greenville ASOS, USdaily high max (Tie, Provisional)33.9 C (93.0 F)tie8 years2 of 100 (Routine)
2 October 2026Greenville ASOS, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)72 years29 of 100 (Routine)
30 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)35.6 C (96.1 F)tie3 years1 of 100 (Routine)
22 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)35.6 C (96.1 F)tie20 years3 of 100 (Routine)
19 September 2026Greenville ASOS, USdaily high max (Provisional)37.8 C (100.0 F)0.6 C (1.1 F)16 years12 of 100 (Routine)
18 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)37.2 C (99.0 F)tie16 years2 of 100 (Routine)
17 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)37.2 C (99.0 F)tie7 years2 of 100 (Routine)
16 September 2026Greenville ASOS, USdaily high max (Provisional)37.8 C (100.0 F)1.1 C (2.0 F)7 years12 of 100 (Routine)
15 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)37.8 C (100.0 F)tie72 years7 of 100 (Routine)
15 September 2026Greenville ASOS, USdaily high min (Tie, Provisional)23.3 C (73.9 F)tie20 years3 of 100 (Routine)
14 September 2026Greenville ASOS, USdaily high max (Provisional)37.2 C (99.0 F)0.5 C (0.9 F)72 years29 of 100 (Routine)
14 September 2026Greenville ASOS, USdaily high min (Tie, Provisional)22.8 C (73.0 F)tie5 years2 of 100 (Routine)
13 September 2026Greenville ASOS, USdaily high max (Provisional)38.3 C (100.9 F)1.6 C (2.9 F)7 years13 of 100 (Routine)
12 September 2026Greenville ASOS, USdaily high max (Provisional)36.7 C (98.1 F)0.6 C (1.1 F)12 years11 of 100 (Routine)
11 September 2026Greenville ASOS, USdaily high min (Provisional)23.9 C (75.0 F)0.6 C (1.1 F)17 years13 of 100 (Routine)
10 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)36.7 C (98.1 F)tie16 years2 of 100 (Routine)
8 September 2026Greenville ASOS, USdaily high max (Tie, Provisional)37.8 C (100.0 F)tie7 years2 of 100 (Routine)
7 September 2026Greenville ASOS, USdaily high max (Provisional)38.9 C (102.0 F)2.2 C (4.0 F)7 years15 of 100 (Routine)
6 September 2026Greenville ASOS, USmonthly high max (Provisional)39.4 C (102.9 F)0.5 C (0.9 F)0 years18 of 100 (Routine)

Climate Trend

29 complete years, 1954 to 2025
Annual mean temperature at Greenville ASOS as warming stripes, 1954 to 2025 One stripe for each of 29 complete years at Greenville ASOS, 1954 to 2025. Blue stripes are years cooler than the station's own mean of 18.1 C (64.6 F); red stripes are warmer. The coolest year was 2014, at 16.8 C (62.2 F), and the warmest was 2024, at 19.5 C (67.0 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1954: 18.8 C, +0.7 C from the station mean1955: 18.0 C, -0.1 C from the station mean1956: 18.3 C, +0.2 C from the station mean1957: 18.0 C, -0.1 C from the station mean1958: 17.0 C, -1.1 C from the station mean1959: 17.6 C, -0.5 C from the station mean2003: 17.3 C, -0.8 C from the station mean2004: 17.8 C, -0.3 C from the station mean2005: 17.9 C, -0.2 C from the station mean2006: 18.2 C, +0.1 C from the station mean2007: 18.9 C, +0.8 C from the station mean2008: 17.7 C, -0.4 C from the station mean2009: 17.2 C, -1.0 C from the station mean2010: 17.6 C, -0.5 C from the station mean2011: 17.8 C, -0.3 C from the station mean2012: 18.8 C, +0.7 C from the station mean2013: 17.2 C, -0.9 C from the station mean2014: 16.8 C, -1.4 C from the station mean2015: 18.3 C, +0.2 C from the station mean2016: 19.0 C, +0.9 C from the station mean2017: 18.5 C, +0.4 C from the station mean2018: 17.7 C, -0.4 C from the station mean2019: 18.2 C, +0.1 C from the station mean2020: 18.5 C, +0.3 C from the station mean2021: 18.5 C, +0.4 C from the station mean2022: 18.5 C, +0.4 C from the station mean2023: 19.3 C, +1.2 C from the station mean2024: 19.5 C, +1.3 C from the station mean2025: 18.7 C, +0.6 C from the station mean19541960197019801990200020102020
One stripe for each of 29 complete years at Greenville ASOS, 1954 to 2025. Blue stripes are years cooler than the station's own mean of 18.1 C (64.6 F); red stripes are warmer. The coolest year was 2014, at 16.8 C (62.2 F), and the warmest was 2024, at 19.5 C (67.0 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Greenville ASOS as warming stripes, 1954 to 2025
YearAnnual mean temperatureDifference from the station mean
195418.8 C+0.66 C
195518.0 C-0.10 C
195618.3 C+0.22 C
195718.0 C-0.13 C
195817.0 C-1.11 C
195917.6 C-0.54 C
200317.3 C-0.83 C
200417.8 C-0.29 C
200517.9 C-0.21 C
200618.2 C+0.10 C
200718.9 C+0.76 C
200817.7 C-0.43 C
200917.2 C-0.96 C
201017.6 C-0.54 C
201117.8 C-0.32 C
201218.8 C+0.65 C
201317.2 C-0.94 C
201416.8 C-1.36 C
201518.3 C+0.23 C
201619.0 C+0.86 C
201718.5 C+0.38 C
201817.7 C-0.43 C
201918.2 C+0.07 C
202018.5 C+0.34 C
202118.5 C+0.38 C
202218.5 C+0.41 C
202319.3 C+1.16 C
202419.5 C+1.34 C
202518.7 C+0.61 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

1953 to 2026
Yearly extremes at Greenville ASOS: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)200737.8 C (100.0 F)34
Coldest night (TNn)-13.2 C (8.2 F)2014-8.3 C (17.1 F)34
Wettest day (Rx1day)227.3 mm (8.9 in)200888.8 mm (3.5 in)34
Wettest five days (Rx5day)326.9 mm (12.9 in)2016129.8 mm (5.1 in)34
Longest dry spell (CDD)45 days195526 days34

Hottest day (TXx)

Hottest day (TXx) at Greenville ASOS by year The hottest day of the year at Greenville ASOS, 1953 to 2026. The record is 41.1 C (106.0 F) in 2007, marked on the chart; the median year is 37.8 C (100.0 F). 34363840421960198020002020Record: 41.1 C (106.0 F) in 2007
The hottest day of the year at Greenville ASOS, 1953 to 2026. The record is 41.1 C (106.0 F) in 2007, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Greenville ASOS by year
YearHottest day (TXx)
195337.8 C (100.0 F)
195440.0 C (104.0 F)
195537.2 C (99.0 F)
195640.0 C (104.0 F)
195736.7 C (98.1 F)
195836.7 C (98.1 F)
195935.0 C (95.0 F)
196037.8 C (100.0 F)
200135.0 C (95.0 F)
200236.1 C (97.0 F)
200337.8 C (100.0 F)
200435.6 C (96.1 F)
200538.9 C (102.0 F)
200638.3 C (100.9 F)
200741.1 C (106.0 F)
200839.4 C (102.9 F)
200937.2 C (99.0 F)
201040.6 C (105.1 F)
201141.1 C (106.0 F)
201239.4 C (102.9 F)
201336.7 C (98.1 F)
201435.6 C (96.1 F)
201537.8 C (100.0 F)
201637.2 C (99.0 F)
201736.1 C (97.0 F)
201836.7 C (98.1 F)
201937.8 C (100.0 F)
202036.7 C (98.1 F)
202136.7 C (98.1 F)
202238.3 C (100.9 F)
202340.6 C (105.1 F)
202439.4 C (102.9 F)
202538.3 C (100.9 F)
202640.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Greenville ASOS by year The coldest night of the year at Greenville ASOS, 1953 to 2026. The record is -13.2 C (8.2 F) in 2014, marked on the chart; the median year is -8.3 C (17.1 F). -15-12.5-10-7.5-5-2.51960198020002020Record: -13.2 C (8.2 F) in 2014
The coldest night of the year at Greenville ASOS, 1953 to 2026. The record is -13.2 C (8.2 F) in 2014, marked on the chart; the median year is -8.3 C (17.1 F).
Coldest night (TNn) at Greenville ASOS by year
YearColdest night (TNn)
1953-8.3 C (17.1 F)
1954-5.6 C (21.9 F)
1955-7.8 C (18.0 F)
1956-6.7 C (19.9 F)
1957-8.3 C (17.1 F)
1958-11.1 C (12.0 F)
1959-8.9 C (16.0 F)
1960-6.1 C (21.0 F)
2001-3.9 C (25.0 F)
2002-7.8 C (18.0 F)
2003-10.6 C (12.9 F)
2004-8.3 C (17.1 F)
2005-6.1 C (21.0 F)
2006-8.9 C (16.0 F)
2007-6.7 C (19.9 F)
2008-8.3 C (17.1 F)
2009-7.2 C (19.0 F)
2010-10.6 C (12.9 F)
2011-12.2 C (10.0 F)
2012-6.7 C (19.9 F)
2013-6.1 C (21.0 F)
2014-13.2 C (8.2 F)
2015-10.5 C (13.1 F)
2016-6.6 C (20.1 F)
2017-9.9 C (14.2 F)
2018-12.7 C (9.1 F)
2019-8.2 C (17.2 F)
2020-3.8 C (25.2 F)
2021-11.6 C (11.1 F)
2022-12.1 C (10.2 F)
2023-3.2 C (26.2 F)
2024-13.2 C (8.2 F)
2025-11.0 C (12.2 F)
2026-8.9 C (16.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Greenville ASOS by year The wettest day of the year at Greenville ASOS, 1953 to 2026. The record is 227.3 mm (8.9 in) in 2008, marked on the chart; the median year is 88.8 mm (3.5 in). 0501001502002501960198020002020Record: 227.3 mm (8.9 in) in 2008
The wettest day of the year at Greenville ASOS, 1953 to 2026. The record is 227.3 mm (8.9 in) in 2008, marked on the chart; the median year is 88.8 mm (3.5 in).
Wettest day (Rx1day) at Greenville ASOS by year
YearWettest day (Rx1day)
195353.1 mm (2.1 in)
195496.0 mm (3.8 in)
1955102.4 mm (4.0 in)
1956103.9 mm (4.1 in)
195781.8 mm (3.2 in)
1958119.9 mm (4.7 in)
1959115.6 mm (4.6 in)
196075.9 mm (3.0 in)
200188.9 mm (3.5 in)
2002101.6 mm (4.0 in)
200377.5 mm (3.1 in)
200476.2 mm (3.0 in)
200593.7 mm (3.7 in)
2006101.1 mm (4.0 in)
200762.5 mm (2.5 in)
2008227.3 mm (8.9 in)
200989.4 mm (3.5 in)
201070.4 mm (2.8 in)
201156.1 mm (2.2 in)
201288.4 mm (3.5 in)
201379.5 mm (3.1 in)
2014108.7 mm (4.3 in)
201588.6 mm (3.5 in)
2016143.3 mm (5.6 in)
201751.6 mm (2.0 in)
2018109.0 mm (4.3 in)
2019147.3 mm (5.8 in)
2020133.4 mm (5.3 in)
202175.9 mm (3.0 in)
202269.9 mm (2.8 in)
202357.9 mm (2.3 in)
202471.9 mm (2.8 in)
2025128.8 mm (5.1 in)
202643.7 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Greenville ASOS by year The wettest five days of the year at Greenville ASOS, 1953 to 2026. The record is 326.9 mm (12.9 in) in 2016, marked on the chart; the median year is 129.8 mm (5.1 in). 01002003004001960198020002020Record: 326.9 mm (12.9 in) in 2016
The wettest five days of the year at Greenville ASOS, 1953 to 2026. The record is 326.9 mm (12.9 in) in 2016, marked on the chart; the median year is 129.8 mm (5.1 in).
Wettest five days (Rx5day) at Greenville ASOS by year
YearWettest five days (Rx5day)
195372.1 mm (2.8 in)
1954217.7 mm (8.6 in)
1955129.5 mm (5.1 in)
1956203.3 mm (8.0 in)
1957176.8 mm (7.0 in)
1958267.7 mm (10.5 in)
1959157.7 mm (6.2 in)
196091.9 mm (3.6 in)
2001225.8 mm (8.9 in)
2002119.7 mm (4.7 in)
200394.1 mm (3.7 in)
2004139.0 mm (5.5 in)
2005172.9 mm (6.8 in)
2006126.4 mm (5.0 in)
200794.3 mm (3.7 in)
2008282.7 mm (11.1 in)
2009171.5 mm (6.8 in)
201074.0 mm (2.9 in)
2011103.7 mm (4.1 in)
2012128.0 mm (5.0 in)
2013149.9 mm (5.9 in)
2014130.1 mm (5.1 in)
2015100.1 mm (3.9 in)
2016326.9 mm (12.9 in)
201796.0 mm (3.8 in)
2018165.6 mm (6.5 in)
2019239.2 mm (9.4 in)
2020173.7 mm (6.8 in)
202198.7 mm (3.9 in)
202296.0 mm (3.8 in)
202389.2 mm (3.5 in)
2024139.5 mm (5.5 in)
2025129.4 mm (5.1 in)
2026103.3 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Greenville ASOS by year The longest dry spell of the year at Greenville ASOS, 1953 to 2026. The record is 45 days in 1955, marked on the chart; the median year is 26 days. 10203040501960198020002020Record: 45 days in 1955
The longest dry spell of the year at Greenville ASOS, 1953 to 2026. The record is 45 days in 1955, marked on the chart; the median year is 26 days.
Longest dry spell (CDD) at Greenville ASOS by year
YearLongest dry spell (CDD)
195336 days
195419 days
195545 days
195622 days
195715 days
195830 days
195919 days
196018 days
200136 days
200224 days
200317 days
200444 days
200529 days
200629 days
200728 days
200822 days
200925 days
201037 days
201126 days
201228 days
201334 days
201420 days
201531 days
201628 days
201726 days
201815 days
201917 days
202017 days
202113 days
202238 days
202324 days
202435 days
202538 days
202619 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Greenville ASOS falls on 10 March and the median first autumn frost on 8 November, which leaves a median of 234 days between them.

Fitted over all years, the growing season changes by +0.9 days per decade at this station.

Frost dates and growing season at Greenville ASOS
MeasureMedian, all yearsEarliest periodRecent period (1954 to 2025)Recent against earliestFitted trend
Last spring frost10 Marchn/a10 Marchn/a-0.3 days per decade
First autumn frost8 Novembern/a8 Novembern/a+0.5 days per decade
Growing days234 daysn/a234 daysn/a+0.9 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

30 years, 1954 to 2025

A day with at least 90.2 mm (3.6 in) of rain is expected about once in 2 years. A day with at least 220.5 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Greenville ASOS: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years90.2 mm (3.6 in)
5 years119.8 mm (4.7 in)
10 years141.4 mm (5.6 in)
25 years171.1 mm (6.7 in)
50 years195.0 mm (7.7 in)Longer than the 30 years of record
100 years220.5 mm (8.7 in)Longer than the 30 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, 30 years of values from 1954 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: 227.3 mm (8.9 in) in 2008; 147.3 mm (5.8 in) in 2019; 143.3 mm (5.6 in) in 2016.

Download the Data

  • Data for Greenville ASOS standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Greenville ASOS 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).