Built 2026-10-15 (15 October 2026)

Kegg Weather Records (USC00364481)

Record envelope, standing records and threshold days for Kegg (USC00364481), Pennsylvania, United States, with 41 years of record.

Key Facts for Kegg

  • Kegg (USC00364481) is a weather station in Pennsylvania, United States at 39.98 latitude and -78.72 longitude, 390 m (1,280 ft) above sea level.
  • The station reports from 1951 to 1991, 41 years of record.
  • 1,464 records set at Kegg still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Kegg set a daily record precipitation of 15.7 mm (0.6 in) on 29 December 1991.

About the Station

  • Location: Pennsylvania, United States, 39.98 latitude, -78.72 longitude.
  • Elevation: 390 m (1,280 ft).
  • Period of record: 1951 to 1991, 41 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 Kegg, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kegg. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kegg. 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 Kegg, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.0 C (68.0 F)-27.8 C (-18.0 F)n/an/a
Feb27.2 C (81.0 F)-25.6 C (-14.1 F)n/an/a
Mar28.9 C (84.0 F)-17.8 C (0.0 F)n/an/a
Apr34.4 C (93.9 F)-11.1 C (12.0 F)n/an/a
May34.4 C (93.9 F)-5.0 C (23.0 F)n/an/a
Jun36.7 C (98.1 F)-2.2 C (28.0 F)n/an/a
Jul40.6 C (105.1 F)5.6 C (42.1 F)n/an/a
Aug38.9 C (102.0 F)-0.6 C (30.9 F)n/an/a
Sep36.7 C (98.1 F)-3.3 C (26.1 F)n/an/a
Oct32.8 C (91.0 F)-10.6 C (12.9 F)n/an/a
Nov28.3 C (82.9 F)-13.9 C (7.0 F)n/an/a
Dec23.3 C (73.9 F)-25.0 C (-13.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kegg by the year they were set 1,464 records at Kegg still stand. 1990 holds the most, with 57. 02040601951: 261952: 431953: 351954: 421955: 351956: 511957: 341958: 451959: 531960: 471961: 391962: 261963: 481964: 391965: 421966: 201967: 121968: 191969: 11970: 221971: 231972: 191973: 81974: 441975: 381976: 511977: 461978: 421979: 441980: 321981: 321982: 351983: 371984: 371985: 391986: 391987: 411988: 241989: 471990: 571991: 50195119561961196619711976198119861991
1,464 records at Kegg still stand. 1990 holds the most, with 57.
Standing records at Kegg by the year they were set
Year setStanding records
195126
195243
195335
195442
195535
195651
195734
195845
195953
196047
196139
196226
196348
196439
196542
196620
196712
196819
19691
197022
197123
197219
19738
197444
197538
197651
197746
197842
197944
198032
198132
198235
198337
198437
198539
198639
198741
198824
198947
199057
199150

All-Time Record Progression

3 new records
When Kegg set new all-time records 3 all-time records were set at Kegg between 7 July 1988 and 16 July 1988. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature7 July 1988: Record high maximum temperature 40.0 C (104.0 F)14 July 1988: Record high minimum temperature 27.2 C (81.0 F)16 July 1988: Record high maximum temperature 40.6 C (105.1 F)
3 all-time records were set at Kegg between 7 July 1988 and 16 July 1988. Each dot is a new record.
When Kegg set new all-time records
DateKindDetail
1988-07-07Record high maximum temperatureRecord high maximum temperature 40.0 C (104.0 F)
1988-07-14Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
1988-07-16Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)

Wettest Day of Each Month

Jul: 122.2 mm (4.8 in)
Record daily precipitation for each month at Kegg The wettest day on record for each calendar month at Kegg. The most was 122.2 mm (4.8 in) on 20 July 1977. 050100150 Jan: 37.6 mm (1.5 in), 21 January 1979 Jan Feb: 53.6 mm (2.1 in), 19 February 1960 Feb Mar: 69.9 mm (2.8 in), 1 March 1954 Mar Apr: 74.9 mm (2.9 in), 4 April 1987 Apr May: 78.7 mm (3.1 in), 8 May 1960 May Jun: 77.0 mm (3.0 in), 8 June 1955 Jun Jul: 122.2 mm (4.8 in), 20 July 1977 Jul Aug: 58.9 mm (2.3 in), 13 August 1955 Aug Sep: 49.5 mm (1.9 in), 14 September 1966 Sep Oct: 108.0 mm (4.3 in), 15 October 1954 Oct Nov: 80.5 mm (3.2 in), 21 November 1952 Nov Dec: 47.8 mm (1.9 in), 14 December 1956 Dec
The wettest day on record for each calendar month at Kegg. The most was 122.2 mm (4.8 in) on 20 July 1977.
Record daily precipitation for each month at Kegg
MonthRecord daily precipitation (mm)Date
Jan37.6 mm (1.5 in)21 January 1979
Feb53.6 mm (2.1 in)19 February 1960
Mar69.9 mm (2.8 in)1 March 1954
Apr74.9 mm (2.9 in)4 April 1987
May78.7 mm (3.1 in)8 May 1960
Jun77.0 mm (3.0 in)8 June 1955
Jul122.2 mm (4.8 in)20 July 1977
Aug58.9 mm (2.3 in)13 August 1955
Sep49.5 mm (1.9 in)14 September 1966
Oct108.0 mm (4.3 in)15 October 1954
Nov80.5 mm (3.2 in)21 November 1952
Dec47.8 mm (1.9 in)14 December 1956

Period of Record Coverage

1951 to 1991
Days with data per year at Kegg 41 years of record at Kegg, 1951 to 1991. 20 years have data for under 90 percent of days and are left out of rankings: 1951, 1954, 1966, 1967, 1968, 1969, 1970, 1971 and others. 1951: 247 of 365 days1952: 358 of 366 days1953: 363 of 365 days1954: 304 of 365 days1955: 363 of 365 days1956: 361 of 366 days1957: 361 of 365 days1958: 362 of 365 days1959: 364 of 365 days1960: 364 of 366 days1961: 362 of 365 days1962: 365 of 365 days1963: 363 of 365 days1964: 364 of 366 days1965: 364 of 365 days1966: 41 of 365 days1967: 18 of 365 days1968: 92 of 366 days1969: 31 of 365 days1970: 241 of 365 days1971: 295 of 365 days1972: 186 of 366 days1973: 117 of 365 days1974: 348 of 365 days1975: 283 of 365 days1976: 300 of 366 days1977: 325 of 365 days1978: 361 of 365 days1979: 327 of 365 days1980: 350 of 366 days1981: 357 of 365 days1982: 314 of 365 days1983: 330 of 365 days1984: 178 of 366 days1985: 352 of 365 days1986: 360 of 365 days1987: 325 of 365 days1988: 168 of 366 days1989: 301 of 365 days1990: 352 of 365 days1991: 308 of 365 days1960197019801990
41 years of record at Kegg, 1951 to 1991. 20 years have data for under 90 percent of days and are left out of rankings: 1951, 1954, 1966, 1967, 1968, 1969, 1970, 1971 and others.
Days with data per year at Kegg
YearDays with dataShare of yearComplete
195124768%No
195235898%Yes
195336399%Yes
195430483%No
195536399%Yes
195636199%Yes
195736199%Yes
195836299%Yes
1959364100%Yes
196036499%Yes
196136299%Yes
1962365100%Yes
196336399%Yes
196436499%Yes
1965364100%Yes
19664111%No
1967185%No
19689225%No
1969318%No
197024166%No
197129581%No
197218651%No
197311732%No
197434895%Yes
197528378%No
197630082%No
197732589%No
197836199%Yes
197932790%No
198035096%Yes
198135798%Yes
198231486%No
198333090%Yes
198417849%No
198535296%Yes
198636099%Yes
198732589%No
198816846%No
198930182%No
199035296%Yes
199130884%No

Latest Records

20
Latest records at Kegg
DateStationRecordValueBeat old record byOld record stoodSignificance
29 December 1991Kegg, USdaily rain15.7 mm (0.6 in)5.5 mm (0.22 in)8 years12 of 100 (Routine)
13 December 1991Kegg, USdaily high max17.2 C (63.0 F)0.5 C (0.9 F)12 years7 of 100 (Routine)
9 December 1991Kegg, USdaily high min7.2 C (45.0 F)1.6 C (2.9 F)24 years13 of 100 (Routine)
9 December 1991Kegg, USdaily high max16.7 C (62.1 F)0.6 C (1.1 F)10 years7 of 100 (Routine)
8 December 1991Kegg, USdaily high max (Tie)17.2 C (63.0 F)tie10 years1 of 100 (Routine)
29 November 1991Kegg, USdaily high max20.6 C (69.1 F)2.8 C (5.0 F)0 years8 of 100 (Routine)
27 November 1991Kegg, USdaily low min-12.2 C (10.0 F)1.1 C (2.0 F)40 years18 of 100 (Routine)
22 November 1991Kegg, USdaily rain44.5 mm (1.8 in)16.6 mm (0.7 in)5 years22 of 100 (Routine)
21 November 1991Kegg, USdaily high max24.4 C (75.9 F)3.8 C (6.8 F)37 years21 of 100 (Routine)
21 November 1991Kegg, USdaily high min12.2 C (54.0 F)3.3 C (5.9 F)8 years12 of 100 (Routine)
20 November 1991Kegg, USdaily high max24.4 C (75.9 F)3.3 C (5.9 F)16 years13 of 100 (Routine)
9 November 1991Kegg, USdaily low min-11.1 C (12.0 F)1.7 C (3.1 F)14 years11 of 100 (Routine)
5 November 1991Kegg, USdaily low min-11.7 C (10.9 F)3.9 C (7.0 F)37 years22 of 100 (Routine)
4 November 1991Kegg, USdaily low min-11.7 C (10.9 F)3.4 C (6.1 F)40 years22 of 100 (Routine)
3 November 1991Kegg, USdaily low min-7.2 C (19.0 F)0.5 C (0.9 F)6 years6 of 100 (Routine)
27 October 1991Kegg, USdaily high max (Tie)27.8 C (82.0 F)tie1 year1 of 100 (Routine)
7 October 1991Kegg, USdaily low min-6.7 C (19.9 F)2.8 C (5.0 F)26 years17 of 100 (Routine)
28 September 1991Kegg, USdaily low min (Tie)-1.7 C (28.9 F)tie33 years3 of 100 (Routine)
18 September 1991Kegg, USdaily high max32.8 C (91.0 F)0.6 C (1.1 F)25 years12 of 100 (Routine)
17 September 1991Kegg, USdaily high min21.7 C (71.1 F)1.7 C (3.1 F)32 years16 of 100 (Routine)

Climate Trend

21 complete years, 1952 to 1990
Annual mean temperature at Kegg as warming stripes, 1952 to 1990 One stripe for each of 21 complete years at Kegg, 1952 to 1990. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1958, at 9.1 C (48.4 F), and the warmest was 1990, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1952: 10.4 C, +0.1 C from the station mean1953: 11.0 C, +0.8 C from the station mean1955: 10.2 C, -0.1 C from the station mean1956: 9.7 C, -0.6 C from the station mean1957: 10.3 C, 0.0 C from the station mean1958: 9.1 C, -1.1 C from the station mean1959: 10.9 C, +0.6 C from the station mean1960: 9.5 C, -0.8 C from the station mean1961: 10.0 C, -0.3 C from the station mean1962: 9.4 C, -0.9 C from the station mean1963: 9.6 C, -0.7 C from the station mean1964: 10.2 C, -0.1 C from the station mean1965: 10.3 C, 0.0 C from the station mean1974: 10.9 C, +0.6 C from the station mean1978: 10.0 C, -0.3 C from the station mean1980: 10.3 C, 0.0 C from the station mean1982: 10.5 C, +0.3 C from the station mean1983: 11.0 C, +0.7 C from the station mean1985: 10.2 C, -0.1 C from the station mean1986: 10.2 C, -0.1 C from the station mean1990: 12.2 C, +1.9 C from the station mean195219551960196519701975198019851990
One stripe for each of 21 complete years at Kegg, 1952 to 1990. Blue stripes are years cooler than the station's own mean of 10.3 C (50.5 F); red stripes are warmer. The coolest year was 1958, at 9.1 C (48.4 F), and the warmest was 1990, at 12.2 C (53.9 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Kegg as warming stripes, 1952 to 1990
YearAnnual mean temperatureDifference from the station mean
195210.4 C+0.09 C
195311.0 C+0.77 C
195510.2 C-0.11 C
19569.7 C-0.57 C
195710.3 C-0.02 C
19589.1 C-1.14 C
195910.9 C+0.58 C
19609.5 C-0.79 C
196110.0 C-0.31 C
19629.4 C-0.86 C
19639.6 C-0.66 C
196410.2 C-0.09 C
196510.3 C+0.02 C
197410.9 C+0.62 C
197810.0 C-0.27 C
198010.3 C+0.02 C
198210.5 C+0.27 C
198311.0 C+0.68 C
198510.2 C-0.08 C
198610.2 C-0.07 C
199012.2 C+1.90 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

1951 to 1991
Yearly extremes at Kegg: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.6 C (105.1 F)198835.0 C (95.0 F)41
Coldest night (TNn)-27.8 C (-18.0 F)1982-20.0 C (-4.0 F)41
Wettest day (Rx1day)122.2 mm (4.8 in)197749.7 mm (2.0 in)40
Wettest five days (Rx5day)156.0 mm (6.1 in)197288.4 mm (3.5 in)40
Longest dry spell (CDD)40 days196621 days40

Hottest day (TXx)

Hottest day (TXx) at Kegg by year The hottest day of the year at Kegg, 1951 to 1991. The record is 40.6 C (105.1 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F). 10203040501960197019801990Record: 40.6 C (105.1 F) in 1988
The hottest day of the year at Kegg, 1951 to 1991. The record is 40.6 C (105.1 F) in 1988, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Kegg by year
YearHottest day (TXx)
195134.4 C (93.9 F)
195236.1 C (97.0 F)
195336.7 C (98.1 F)
195437.8 C (100.0 F)
195535.0 C (95.0 F)
195633.9 C (93.0 F)
195735.6 C (96.1 F)
195833.3 C (91.9 F)
195935.6 C (96.1 F)
196032.8 C (91.0 F)
196135.0 C (95.0 F)
196235.0 C (95.0 F)
196334.4 C (93.9 F)
196435.0 C (95.0 F)
196535.6 C (96.1 F)
196617.8 C (64.0 F)
196711.1 C (52.0 F)
196827.8 C (82.0 F)
196932.2 C (90.0 F)
197033.3 C (91.9 F)
197134.4 C (93.9 F)
197232.2 C (90.0 F)
197335.6 C (96.1 F)
197432.8 C (91.0 F)
197535.6 C (96.1 F)
197634.4 C (93.9 F)
197736.7 C (98.1 F)
197835.0 C (95.0 F)
197933.3 C (91.9 F)
198036.7 C (98.1 F)
198136.7 C (98.1 F)
198235.6 C (96.1 F)
198338.9 C (102.0 F)
198430.6 C (87.1 F)
198534.4 C (93.9 F)
198635.6 C (96.1 F)
198736.1 C (97.0 F)
198840.6 C (105.1 F)
198936.7 C (98.1 F)
199035.6 C (96.1 F)
199136.1 C (97.0 F)

Coldest night (TNn)

Coldest night (TNn) at Kegg by year The coldest night of the year at Kegg, 1951 to 1991. The record is -27.8 C (-18.0 F) in 1982, marked on the chart; the median year is -20.0 C (-4.0 F). -30-20-100101960197019801990Record: -27.8 C (-18.0 F) in 1982
The coldest night of the year at Kegg, 1951 to 1991. The record is -27.8 C (-18.0 F) in 1982, marked on the chart; the median year is -20.0 C (-4.0 F).
Coldest night (TNn) at Kegg by year
YearColdest night (TNn)
1951-16.7 C (1.9 F)
1952-15.0 C (5.0 F)
1953-12.8 C (9.0 F)
1954-19.4 C (-2.9 F)
1955-23.3 C (-9.9 F)
1956-15.6 C (3.9 F)
1957-18.3 C (-0.9 F)
1958-20.6 C (-5.1 F)
1959-20.0 C (-4.0 F)
1960-23.9 C (-11.0 F)
1961-21.1 C (-6.0 F)
1962-22.8 C (-9.0 F)
1963-25.0 C (-13.0 F)
1964-24.4 C (-11.9 F)
1965-24.4 C (-11.9 F)
1966-20.6 C (-5.1 F)
1967-20.0 C (-4.0 F)
1968-23.3 C (-9.9 F)
19697.8 C (46.0 F)
1970-11.7 C (10.9 F)
1971-21.1 C (-6.0 F)
1972-23.3 C (-9.9 F)
1973-16.7 C (1.9 F)
1974-12.2 C (10.0 F)
1975-16.7 C (1.9 F)
1976-17.8 C (0.0 F)
1977-17.8 C (0.0 F)
1978-23.3 C (-9.9 F)
1979-25.0 C (-13.0 F)
1980-18.9 C (-2.0 F)
1981-21.1 C (-6.0 F)
1982-27.8 C (-18.0 F)
1983-25.0 C (-13.0 F)
1984-16.7 C (1.9 F)
1985-27.8 C (-18.0 F)
1986-18.3 C (-0.9 F)
1987-23.3 C (-9.9 F)
1988-7.8 C (18.0 F)
1989-24.4 C (-11.9 F)
1990-18.3 C (-0.9 F)
1991-16.7 C (1.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kegg by year The wettest day of the year at Kegg, 1951 to 1991. The record is 122.2 mm (4.8 in) in 1977, marked on the chart; the median year is 49.7 mm (2.0 in). 2550751001251960197019801990Record: 122.2 mm (4.8 in) in 1977
The wettest day of the year at Kegg, 1951 to 1991. The record is 122.2 mm (4.8 in) in 1977, marked on the chart; the median year is 49.7 mm (2.0 in).
Wettest day (Rx1day) at Kegg by year
YearWettest day (Rx1day)
195149.0 mm (1.9 in)
195280.5 mm (3.2 in)
195369.6 mm (2.7 in)
1954108.0 mm (4.3 in)
195577.0 mm (3.0 in)
195647.8 mm (1.9 in)
195745.5 mm (1.8 in)
195860.5 mm (2.4 in)
195945.7 mm (1.8 in)
196080.0 mm (3.1 in)
196135.1 mm (1.4 in)
196231.8 mm (1.3 in)
196341.1 mm (1.6 in)
196455.4 mm (2.2 in)
196546.7 mm (1.8 in)
196650.0 mm (2.0 in)
196743.4 mm (1.7 in)
196825.9 mm (1.0 in)
1969n/a
197076.7 mm (3.0 in)
197158.4 mm (2.3 in)
197248.5 mm (1.9 in)
197335.6 mm (1.4 in)
197459.4 mm (2.3 in)
197549.3 mm (1.9 in)
197695.3 mm (3.8 in)
1977122.2 mm (4.8 in)
197846.2 mm (1.8 in)
197947.0 mm (1.9 in)
198092.7 mm (3.6 in)
198162.5 mm (2.5 in)
198269.9 mm (2.8 in)
198364.8 mm (2.6 in)
198445.7 mm (1.8 in)
198545.7 mm (1.8 in)
198629.2 mm (1.1 in)
198774.9 mm (2.9 in)
198848.3 mm (1.9 in)
198970.4 mm (2.8 in)
199050.3 mm (2.0 in)
199144.5 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kegg by year The wettest five days of the year at Kegg, 1951 to 1991. The record is 156.0 mm (6.1 in) in 1972, marked on the chart; the median year is 88.4 mm (3.5 in). 0501001502001960197019801990Record: 156.0 mm (6.1 in) in 1972
The wettest five days of the year at Kegg, 1951 to 1991. The record is 156.0 mm (6.1 in) in 1972, marked on the chart; the median year is 88.4 mm (3.5 in).
Wettest five days (Rx5day) at Kegg by year
YearWettest five days (Rx5day)
195191.1 mm (3.6 in)
1952117.9 mm (4.6 in)
195385.8 mm (3.4 in)
1954112.9 mm (4.4 in)
1955122.5 mm (4.8 in)
195674.7 mm (2.9 in)
195764.1 mm (2.5 in)
1958111.0 mm (4.4 in)
195974.3 mm (2.9 in)
1960100.8 mm (4.0 in)
196153.3 mm (2.1 in)
196263.5 mm (2.5 in)
196382.8 mm (3.3 in)
196471.5 mm (2.8 in)
196548.5 mm (1.9 in)
196658.7 mm (2.3 in)
196799.6 mm (3.9 in)
196827.0 mm (1.1 in)
1969n/a
1970125.3 mm (4.9 in)
197179.5 mm (3.1 in)
1972156.0 mm (6.1 in)
197357.2 mm (2.3 in)
197469.1 mm (2.7 in)
197568.8 mm (2.7 in)
1976131.4 mm (5.2 in)
1977125.5 mm (4.9 in)
197891.4 mm (3.6 in)
197983.0 mm (3.3 in)
1980123.4 mm (4.9 in)
198197.4 mm (3.8 in)
198273.7 mm (2.9 in)
1983128.6 mm (5.1 in)
198468.5 mm (2.7 in)
1985104.1 mm (4.1 in)
198648.5 mm (1.9 in)
198795.4 mm (3.8 in)
1988106.8 mm (4.2 in)
1989114.8 mm (4.5 in)
199097.2 mm (3.8 in)
199150.4 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kegg by year The longest dry spell of the year at Kegg, 1951 to 1991. The record is 40 days in 1966, marked on the chart; the median year is 21 days. 102030401960197019801990Record: 40 days in 1966
The longest dry spell of the year at Kegg, 1951 to 1991. The record is 40 days in 1966, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at Kegg by year
YearLongest dry spell (CDD)
195121 days
195223 days
195322 days
195430 days
195538 days
195618 days
195736 days
195822 days
195920 days
196020 days
196115 days
196229 days
196327 days
196438 days
196526 days
196640 days
196717 days
196828 days
1969n/a
197010 days
197117 days
197210 days
197314 days
197416 days
197518 days
197617 days
197721 days
197818 days
197917 days
198020 days
198121 days
198227 days
198320 days
198415 days
198532 days
198638 days
198723 days
198817 days
198916 days
199013 days
199124 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

21 years with a frost

Across 21 years with a frost, the median last spring frost at Kegg falls on 3 May and the median first autumn frost on 2 October, which leaves a median of 149 days between them.

Frost dates and growing season at Kegg
MeasureMedian, all yearsEarliest periodRecent period (1952 to 1990)Recent against earliestFitted trend
Last spring frost3 Mayn/a3 Mayn/an/a
First autumn frost2 Octobern/a2 Octobern/an/a
Growing days149 daysn/a149 daysn/an/a

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.

Download the Data

  • Data for Kegg standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Kegg 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).