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Built 2026-10-16 (16 October 2026)

Harrison Weather Records (USC00283704)

Record envelope, standing records and threshold days for Harrison (USC00283704), New Jersey, United States, with 31 years of record.

Key Facts for Harrison

  • Harrison (USC00283704) is a weather station in New Jersey, United States at 40.75 latitude and -74.15 longitude, 7 m (24 ft) above sea level.
  • The station reports from 1996 to 2026, 31 years of record.
  • 1,464 records set at Harrison still stand.
  • Records are tracked for prcp, snow: an element needs 30 years of data to be eligible.
  • Harrison set a daily record precipitation of 37.1 mm (1.5 in) on 27 September 2026 (provisional).

Provisional Records

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

About the Station

  • Location: New Jersey, United States, 40.75 latitude, -74.15 longitude.
  • Elevation: 7 m (24 ft).
  • Period of record: 1996 to 2026, 31 years.
  • Eligible elements: prcp, snow.

Daily Record Envelope and 2026

27 days at or beyond a record
Daily record high and record low at Harrison, with 2026 drawn through them The band shows the record high and record low for each calendar day at Harrison. The lines show the 2026 daily maximum and minimum. 27 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 Harrison. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Harrison, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan22.8 C (73.0 F)-17.8 C (0.0 F)11.1 C (52.0 F)-13.3 C (8.1 F)
Feb26.1 C (79.0 F)-17.8 C (0.0 F)11.7 C (53.1 F)-16.1 C (3.0 F)
Mar31.1 C (88.0 F)-12.8 C (9.0 F)27.8 C (82.0 F)-6.7 C (19.9 F)
Apr36.7 C (98.1 F)-3.9 C (25.0 F)33.3 C (91.9 F)-2.2 C (28.0 F)
May37.8 C (100.0 F)0.6 C (33.1 F)37.8 C (100.0 F)6.7 C (44.1 F)
Jun39.4 C (102.9 F)8.3 C (46.9 F)36.1 C (97.0 F)10.6 C (51.1 F)
Jul41.7 C (107.1 F)13.3 C (55.9 F)41.1 C (106.0 F)15.6 C (60.1 F)
Aug40.0 C (104.0 F)12.8 C (55.0 F)36.1 C (97.0 F)16.7 C (62.1 F)
Sep37.2 C (99.0 F)5.0 C (41.0 F)31.7 C (89.1 F)10.6 C (51.1 F)
Oct35.0 C (95.0 F)-1.1 C (30.0 F)31.1 C (88.0 F)5.6 C (42.1 F)
Nov28.3 C (82.9 F)-10.6 C (12.9 F)n/an/a
Dec25.0 C (77.0 F)-15.0 C (5.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Harrison by the year they were set 1,464 records at Harrison still stand. 1997 holds the most, with 72. 0204060801996: 691997: 721998: 481999: 422000: 22001: 542002: 652003: 372004: 602005: 572006: 452007: 552008: 352009: 442010: 372011: 362012: 342013: 612014: 612015: 702016: 462017: 592018: 532019: 332020: 422021: 472022: 492023: 412024: 352025: 352026: 4019962000200420082012201620202024
1,464 records at Harrison still stand. 1997 holds the most, with 72.
Standing records at Harrison by the year they were set
Year setStanding records
199669
199772
199848
199942
20002
200154
200265
200337
200460
200557
200645
200755
200835
200944
201037
201136
201234
201361
201461
201570
201646
201759
201853
201933
202042
202147
202249
202341
202435
202535
202640

Wettest Day of Each Month

Sep: 218.2 mm (8.6 in)
Record daily precipitation for each month at Harrison The wettest day on record for each calendar month at Harrison. The most was 218.2 mm (8.6 in) on 2 September 2021. 0100200300 Jan: 66.0 mm (2.6 in), 10 January 2024 Jan Feb: 71.9 mm (2.8 in), 26 February 2020 Feb Mar: 110.2 mm (4.3 in), 13 March 2010 Mar Apr: 173.2 mm (6.8 in), 15 April 2007 Apr May: 108.5 mm (4.3 in), 1 May 2014 May Jun: 96.3 mm (3.8 in), 4 June 2003 Jun Jul: 82.3 mm (3.2 in), 23 July 2004 Jul Aug: 156.2 mm (6.1 in), 28 August 2011 Aug Sep: 218.2 mm (8.6 in), 2 September 2021 Sep Oct: 124.0 mm (4.9 in), 8 October 2005 Oct Nov: 120.4 mm (4.7 in), 8 November 2006 Nov Dec: 81.3 mm (3.2 in), 18 December 2023 Dec
The wettest day on record for each calendar month at Harrison. The most was 218.2 mm (8.6 in) on 2 September 2021.
Record daily precipitation for each month at Harrison
MonthRecord daily precipitation (mm)Date
Jan66.0 mm (2.6 in)10 January 2024
Feb71.9 mm (2.8 in)26 February 2020
Mar110.2 mm (4.3 in)13 March 2010
Apr173.2 mm (6.8 in)15 April 2007
May108.5 mm (4.3 in)1 May 2014
Jun96.3 mm (3.8 in)4 June 2003
Jul82.3 mm (3.2 in)23 July 2004
Aug156.2 mm (6.1 in)28 August 2011
Sep218.2 mm (8.6 in)2 September 2021
Oct124.0 mm (4.9 in)8 October 2005
Nov120.4 mm (4.7 in)8 November 2006
Dec81.3 mm (3.2 in)18 December 2023

Period of Record Coverage

1996 to 2026
Days with data per year at Harrison 31 years of record at Harrison, 1996 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2000, 2009, 2026. 1996: 349 of 366 days1997: 360 of 365 days1998: 363 of 365 days1999: 361 of 365 days2000: 31 of 366 days2001: 335 of 365 days2002: 357 of 365 days2003: 357 of 365 days2004: 360 of 366 days2005: 356 of 365 days2006: 361 of 365 days2007: 360 of 365 days2008: 347 of 366 days2009: 323 of 365 days2010: 335 of 365 days2011: 335 of 365 days2012: 345 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: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 285 of 365 days200020052010201520202025
31 years of record at Harrison, 1996 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 2000, 2009, 2026.
Days with data per year at Harrison
YearDays with dataShare of yearComplete
199634995%Yes
199736099%Yes
199836399%Yes
199936199%Yes
2000318%No
200133592%Yes
200235798%Yes
200335798%Yes
200436098%Yes
200535698%Yes
200636199%Yes
200736099%Yes
200834795%Yes
200932388%No
201033592%Yes
201133592%Yes
201234594%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628578%No

Latest Records

13
Latest records at Harrison
DateStationRecordValueBeat old record byOld record stoodSignificance
27 September 2026Harrison, USdaily rain (Provisional)37.1 mm (1.5 in)4.8 mm (0.19 in)24 years12 of 100 (Routine)
21 August 2026Harrison, USdaily rain (Provisional)62.5 mm (2.5 in)25.7 mm (1.0 in)19 years21 of 100 (Routine)
6 August 2026Harrison, USdaily rain27.9 mm (1.1 in)7.1 mm (0.28 in)29 years14 of 100 (Routine)
3 August 2026Harrison, USdaily rain33.5 mm (1.3 in)5.6 mm (0.22 in)1 year5 of 100 (Routine)
19 July 2026Harrison, USdaily rain70.6 mm (2.8 in)37.3 mm (1.5 in)24 years32 of 100 (Routine)
26 June 2026Harrison, USdaily rain (Tie)8.9 mm (0.35 in)tie12 years1 of 100 (Routine)
23 June 2026Harrison, USdaily rain47.8 mm (1.9 in)42.7 mm (1.7 in)4 years36 of 100 (Notable)
8 June 2026Harrison, USdaily rain11.4 mm (0.4 in)1.2 mm (0.05 in)0 years3 of 100 (Routine)
12 March 2026Harrison, USdaily rain13.5 mm (0.5 in)5.9 mm (0.23 in)16 years11 of 100 (Routine)
24 February 2026Harrison, USdaily snowfall (Tie)10.2 cm (4.0 in)tie20 years2 of 100 (Routine)
23 February 2026Harrison, USdaily snowfall35.6 cm (14.0 in)32.6 cm (12.8 in)4 years43 of 100 (Notable)
26 January 2026Harrison, USdaily snowfall22.9 cm (9.0 in)16.0 cm (6.3 in)15 years24 of 100 (Routine)
1 January 2026Harrison, USdaily snowfall1.0 cm (0.4 in)1.0 cm (0.4 in)30 years13 of 100 (Routine)

Climate Trend

28 complete years, 1996 to 2025
Annual mean temperature at Harrison as warming stripes, 1996 to 2025 One stripe for each of 28 complete years at Harrison, 1996 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.6 F); red stripes are warmer. The coolest year was 1996, at 11.4 C (52.5 F), and the warmest was 2012, at 14.1 C (57.4 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1996: 11.4 C, -1.7 C from the station mean1997: 11.9 C, -1.3 C from the station mean1998: 14.0 C, +0.9 C from the station mean1999: 13.7 C, +0.5 C from the station mean2002: 14.1 C, +0.9 C from the station mean2003: 12.2 C, -0.9 C from the station mean2004: 13.1 C, -0.1 C from the station mean2005: 13.3 C, +0.2 C from the station mean2006: 13.8 C, +0.7 C from the station mean2007: 12.9 C, -0.2 C from the station mean2008: 13.2 C, 0.0 C from the station mean2009: 12.4 C, -0.7 C from the station mean2010: 13.7 C, +0.6 C from the station mean2011: 13.4 C, +0.3 C from the station mean2012: 14.1 C, +1.0 C from the station mean2013: 12.6 C, -0.5 C from the station mean2014: 11.8 C, -1.4 C from the station mean2015: 12.8 C, -0.3 C from the station mean2016: 13.5 C, +0.3 C from the station mean2017: 13.1 C, -0.1 C from the station mean2018: 12.9 C, -0.2 C from the station mean2019: 12.8 C, -0.3 C from the station mean2020: 13.7 C, +0.6 C from the station mean2021: 13.5 C, +0.3 C from the station mean2022: 13.2 C, 0.0 C from the station mean2023: 13.9 C, +0.7 C from the station mean2024: 13.9 C, +0.8 C from the station mean2025: 12.9 C, -0.2 C from the station mean1996200020052010201520202025
One stripe for each of 28 complete years at Harrison, 1996 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.6 F); red stripes are warmer. The coolest year was 1996, at 11.4 C (52.5 F), and the warmest was 2012, at 14.1 C (57.4 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Harrison as warming stripes, 1996 to 2025
YearAnnual mean temperatureDifference from the station mean
199611.4 C-1.72 C
199711.9 C-1.26 C
199814.0 C+0.90 C
199913.7 C+0.54 C
200214.1 C+0.93 C
200312.2 C-0.95 C
200413.1 C-0.08 C
200513.3 C+0.16 C
200613.8 C+0.70 C
200712.9 C-0.20 C
200813.2 C+0.02 C
200912.4 C-0.73 C
201013.7 C+0.56 C
201113.4 C+0.27 C
201214.1 C+0.99 C
201312.6 C-0.54 C
201411.8 C-1.36 C
201512.8 C-0.31 C
201613.5 C+0.34 C
201713.1 C-0.07 C
201812.9 C-0.25 C
201912.8 C-0.29 C
202013.7 C+0.58 C
202113.5 C+0.32 C
202213.2 C+0.03 C
202313.9 C+0.72 C
202413.9 C+0.80 C
202512.9 C-0.21 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

1996 to 2026
Yearly extremes at Harrison: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)201138.3 C (100.9 F)31
Coldest night (TNn)-17.8 C (0.0 F)2004-13.9 C (7.0 F)31
Wettest day (Rx1day)218.2 mm (8.6 in)202181.3 mm (3.2 in)31
Wettest five days (Rx5day)240.0 mm (9.4 in)2007118.6 mm (4.7 in)31
Longest dry spell (CDD)41 days202418 days31

Hottest day (TXx)

Hottest day (TXx) at Harrison by year The hottest day of the year at Harrison, 1996 to 2026. The record is 41.7 C (107.1 F) in 2011, marked on the chart; the median year is 38.3 C (100.9 F). 1020304050200020052010201520202025Record: 41.7 C (107.1 F) in 2011
The hottest day of the year at Harrison, 1996 to 2026. The record is 41.7 C (107.1 F) in 2011, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Harrison by year
YearHottest day (TXx)
199635.6 C (96.1 F)
199737.2 C (99.0 F)
199836.1 C (97.0 F)
199938.9 C (102.0 F)
200017.8 C (64.0 F)
200140.0 C (104.0 F)
200238.3 C (100.9 F)
200334.4 C (93.9 F)
200434.4 C (93.9 F)
200538.9 C (102.0 F)
200638.3 C (100.9 F)
200736.1 C (97.0 F)
200837.8 C (100.0 F)
200936.1 C (97.0 F)
201041.1 C (106.0 F)
201141.7 C (107.1 F)
201239.4 C (102.9 F)
201338.9 C (102.0 F)
201435.0 C (95.0 F)
201537.2 C (99.0 F)
201637.8 C (100.0 F)
201736.7 C (98.1 F)
201838.3 C (100.9 F)
201938.3 C (100.9 F)
202036.7 C (98.1 F)
202138.3 C (100.9 F)
202238.9 C (102.0 F)
202336.1 C (97.0 F)
202438.3 C (100.9 F)
202539.4 C (102.9 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Harrison by year The coldest night of the year at Harrison, 1996 to 2026. The record is -17.8 C (0.0 F) in 2004, marked on the chart; the median year is -13.9 C (7.0 F). -20-17.5-15-12.5-10-7.5200020052010201520202025Record: -17.8 C (0.0 F) in 2004
The coldest night of the year at Harrison, 1996 to 2026. The record is -17.8 C (0.0 F) in 2004, marked on the chart; the median year is -13.9 C (7.0 F).
Coldest night (TNn) at Harrison by year
YearColdest night (TNn)
1996-15.6 C (3.9 F)
1997-16.1 C (3.0 F)
1998-10.0 C (14.0 F)
1999-13.3 C (8.1 F)
2000-10.6 C (12.9 F)
2001-8.9 C (16.0 F)
2002-7.8 C (18.0 F)
2003-14.4 C (6.1 F)
2004-17.8 C (0.0 F)
2005-16.1 C (3.0 F)
2006-10.0 C (14.0 F)
2007-13.9 C (7.0 F)
2008-12.2 C (10.0 F)
2009-15.0 C (5.0 F)
2010-10.0 C (14.0 F)
2011-15.0 C (5.0 F)
2012-11.1 C (12.0 F)
2013-12.2 C (10.0 F)
2014-17.2 C (1.0 F)
2015-17.8 C (0.0 F)
2016-17.8 C (0.0 F)
2017-11.7 C (10.9 F)
2018-16.1 C (3.0 F)
2019-17.8 C (0.0 F)
2020-11.1 C (12.0 F)
2021-10.0 C (14.0 F)
2022-15.0 C (5.0 F)
2023-16.1 C (3.0 F)
2024-12.8 C (9.0 F)
2025-12.8 C (9.0 F)
2026-16.1 C (3.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Harrison by year The wettest day of the year at Harrison, 1996 to 2026. The record is 218.2 mm (8.6 in) in 2021, marked on the chart; the median year is 81.3 mm (3.2 in). 050100150200250200020052010201520202025Record: 218.2 mm (8.6 in) in 2021
The wettest day of the year at Harrison, 1996 to 2026. The record is 218.2 mm (8.6 in) in 2021, marked on the chart; the median year is 81.3 mm (3.2 in).
Wettest day (Rx1day) at Harrison by year
YearWettest day (Rx1day)
1996123.4 mm (4.9 in)
199778.7 mm (3.1 in)
199854.4 mm (2.1 in)
1999176.8 mm (7.0 in)
200080.5 mm (3.2 in)
200163.0 mm (2.5 in)
200280.3 mm (3.2 in)
200396.3 mm (3.8 in)
200482.6 mm (3.3 in)
2005124.0 mm (4.9 in)
2006120.4 mm (4.7 in)
2007173.2 mm (6.8 in)
2008104.1 mm (4.1 in)
200965.3 mm (2.6 in)
2010110.2 mm (4.3 in)
2011156.2 mm (6.1 in)
201258.9 mm (2.3 in)
201371.4 mm (2.8 in)
2014108.5 mm (4.3 in)
201589.2 mm (3.5 in)
201657.2 mm (2.3 in)
201794.7 mm (3.7 in)
201867.8 mm (2.7 in)
201972.4 mm (2.9 in)
202071.9 mm (2.8 in)
2021218.2 mm (8.6 in)
202251.3 mm (2.0 in)
202381.3 mm (3.2 in)
202487.9 mm (3.5 in)
202549.0 mm (1.9 in)
202670.6 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Harrison by year The wettest five days of the year at Harrison, 1996 to 2026. The record is 240.0 mm (9.4 in) in 2007, marked on the chart; the median year is 118.6 mm (4.7 in). 50100150200250200020052010201520202025Record: 240.0 mm (9.4 in) in 2007
The wettest five days of the year at Harrison, 1996 to 2026. The record is 240.0 mm (9.4 in) in 2007, marked on the chart; the median year is 118.6 mm (4.7 in).
Wettest five days (Rx5day) at Harrison by year
YearWettest five days (Rx5day)
1996134.8 mm (5.3 in)
1997180.1 mm (7.1 in)
199896.6 mm (3.8 in)
1999194.8 mm (7.7 in)
2000113.1 mm (4.5 in)
200174.4 mm (2.9 in)
2002118.7 mm (4.7 in)
2003127.8 mm (5.0 in)
2004147.3 mm (5.8 in)
2005222.4 mm (8.8 in)
2006126.5 mm (5.0 in)
2007240.0 mm (9.4 in)
2008118.6 mm (4.7 in)
2009102.9 mm (4.1 in)
2010129.8 mm (5.1 in)
2011237.2 mm (9.3 in)
201279.5 mm (3.1 in)
201394.3 mm (3.7 in)
2014127.8 mm (5.0 in)
2015104.2 mm (4.1 in)
201684.1 mm (3.3 in)
201795.0 mm (3.7 in)
2018107.2 mm (4.2 in)
201985.4 mm (3.4 in)
2020102.7 mm (4.0 in)
2021221.5 mm (8.7 in)
202297.0 mm (3.8 in)
2023164.8 mm (6.5 in)
2024138.7 mm (5.5 in)
202558.4 mm (2.3 in)
202695.0 mm (3.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Harrison by year The longest dry spell of the year at Harrison, 1996 to 2026. The record is 41 days in 2024, marked on the chart; the median year is 18 days. 1020304050200020052010201520202025Record: 41 days in 2024
The longest dry spell of the year at Harrison, 1996 to 2026. The record is 41 days in 2024, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Harrison by year
YearLongest dry spell (CDD)
199612 days
199716 days
199816 days
199919 days
200021 days
200126 days
200221 days
200327 days
200417 days
200527 days
200621 days
200720 days
200819 days
200914 days
201020 days
201117 days
201218 days
201323 days
201418 days
201523 days
201618 days
201718 days
201811 days
201911 days
202016 days
202117 days
202212 days
202322 days
202441 days
202514 days
202620 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Harrison falls on 3 April and the median first autumn frost on 12 November, which leaves a median of 225 days between them.

Fitted over all years, the growing season changes by -2.5 days per decade at this station.

Frost dates and growing season at Harrison
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost3 Apriln/a3 Apriln/a+0.1 days per decade
First autumn frost12 Novembern/a12 Novembern/a-2.5 days per decade
Growing days225 daysn/a225 daysn/a-2.5 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, 1996 to 2025

A day with at least 84.5 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 264.7 mm (10.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Harrison: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years84.5 mm (3.3 in)
5 years118.8 mm (4.7 in)
10 years146.2 mm (5.8 in)
25 years187.4 mm (7.4 in)
50 years223.4 mm (8.8 in)Longer than the 30 years of record
100 years264.7 mm (10.4 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 1996 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: 218.2 mm (8.6 in) in 2021; 176.8 mm (7.0 in) in 1999; 173.2 mm (6.8 in) in 2007.

Download the Data

  • Data for Harrison standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Harrison 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 (2026-10-14).