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Built 2026-10-18 (18 October 2026)

Harrisville Sp Weather Records (USC00203628)

Record envelope, standing records and threshold days for Harrisville Sp (USC00203628), Michigan, United States, with 56 years of record.

Key Facts for Harrisville Sp

  • Harrisville Sp (USC00203628) is a weather station in Michigan, United States at 44.65 latitude and -83.30 longitude, 187 m (612 ft) above sea level.
  • The station reports from 1971 to 2026, 56 years of record.
  • 1,464 records set at Harrisville Sp still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Harrisville Sp tied a daily record high maximum temperature of 20.6 C (69.1 F) on 14 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Michigan, United States, 44.65 latitude, -83.30 longitude.
  • Elevation: 187 m (612 ft).
  • Period of record: 1971 to 2026, 56 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

13 days at or beyond a record
Daily record high and record low at Harrisville Sp, with 2026 drawn through them The band shows the record high and record low for each calendar day at Harrisville Sp. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Harrisville Sp. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Harrisville Sp, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan14.4 C (57.9 F)-28.3 C (-18.9 F)9.4 C (48.9 F)-21.7 C (-7.1 F)
Feb18.3 C (64.9 F)-30.0 C (-22.0 F)6.7 C (44.1 F)-20.0 C (-4.0 F)
Mar24.4 C (75.9 F)-26.1 C (-15.0 F)19.4 C (66.9 F)-15.0 C (5.0 F)
Apr31.1 C (88.0 F)-14.4 C (6.1 F)17.8 C (64.0 F)-8.9 C (16.0 F)
May32.8 C (91.0 F)-6.1 C (21.0 F)31.1 C (88.0 F)-3.3 C (26.1 F)
Jun36.7 C (98.1 F)-1.1 C (30.0 F)27.8 C (82.0 F)5.6 C (42.1 F)
Jul38.3 C (100.9 F)1.1 C (34.0 F)36.7 C (98.1 F)8.9 C (48.0 F)
Aug39.4 C (102.9 F)1.7 C (35.1 F)27.8 C (82.0 F)10.6 C (51.1 F)
Sep36.1 C (97.0 F)0.0 C (32.0 F)26.1 C (79.0 F)5.6 C (42.1 F)
Oct31.7 C (89.1 F)-7.2 C (19.0 F)20.6 C (69.1 F)0.0 C (32.0 F)
Nov24.4 C (75.9 F)-18.3 C (-0.9 F)n/an/a
Dec18.3 C (64.9 F)-22.8 C (-9.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Harrisville Sp by the year they were set 1,464 records at Harrisville Sp still stand. 1976 holds the most, with 75. 0204060801971: 41972: 461973: 641974: 521975: 301976: 751977: 541978: 461979: 481980: 231981: 421982: 481983: 241984: 281998: 321999: 262000: 382001: 462002: 412003: 232004: 332005: 252006: 332007: 332008: 252009: 262010: 282011: 192012: 292013: 252014: 482015: 442016: 282017: 402018: 282019: 392020: 402021: 282022: 182023: 232024: 232025: 232026: 16197119761981199920042009201420192024
1,464 records at Harrisville Sp still stand. 1976 holds the most, with 75.
Standing records at Harrisville Sp by the year they were set
Year setStanding records
19714
197246
197364
197452
197530
197675
197754
197846
197948
198023
198142
198248
198324
198428
199832
199926
200038
200146
200241
200323
200433
200525
200633
200733
200825
200926
201028
201119
201229
201325
201448
201544
201628
201740
201828
201939
202040
202128
202218
202323
202423
202523
202616

All-Time Record Progression

1 new records
When Harrisville Sp set new all-time records 1 all-time records were set at Harrisville Sp between 29 January 2019 and 29 January 2019. Each dot is a new record. Record daily snowfall29 January 2019: Record daily snowfall 34.8 cm (13.7 in)2020
1 all-time records were set at Harrisville Sp between 29 January 2019 and 29 January 2019. Each dot is a new record.
When Harrisville Sp set new all-time records
DateKindDetail
2019-01-29Record daily snowfallRecord daily snowfall 34.8 cm (13.7 in)

Wettest Day of Each Month

Sep: 87.1 mm (3.4 in)
Record daily precipitation for each month at Harrisville Sp The wettest day on record for each calendar month at Harrisville Sp. The most was 87.1 mm (3.4 in) on 26 September 2005. 0255075100 Jan: 32.3 mm (1.3 in), 30 January 2013 Jan Feb: 32.5 mm (1.3 in), 25 February 2017 Feb Mar: 47.5 mm (1.9 in), 24 March 2022 Mar Apr: 46.7 mm (1.8 in), 28 April 2011 Apr May: 57.9 mm (2.3 in), 13 May 2000 May Jun: 56.1 mm (2.2 in), 14 June 1999 Jun Jul: 78.7 mm (3.1 in), 11 July 1984 Jul Aug: 77.5 mm (3.1 in), 27 August 2006 Aug Sep: 87.1 mm (3.4 in), 26 September 2005 Sep Oct: 51.6 mm (2.0 in), 7 October 1998 Oct Nov: 34.3 mm (1.4 in), 27 November 2019 Nov Dec: 53.8 mm (2.1 in), 30 December 2019 Dec
The wettest day on record for each calendar month at Harrisville Sp. The most was 87.1 mm (3.4 in) on 26 September 2005.
Record daily precipitation for each month at Harrisville Sp
MonthRecord daily precipitation (mm)Date
Jan32.3 mm (1.3 in)30 January 2013
Feb32.5 mm (1.3 in)25 February 2017
Mar47.5 mm (1.9 in)24 March 2022
Apr46.7 mm (1.8 in)28 April 2011
May57.9 mm (2.3 in)13 May 2000
Jun56.1 mm (2.2 in)14 June 1999
Jul78.7 mm (3.1 in)11 July 1984
Aug77.5 mm (3.1 in)27 August 2006
Sep87.1 mm (3.4 in)26 September 2005
Oct51.6 mm (2.0 in)7 October 1998
Nov34.3 mm (1.4 in)27 November 2019
Dec53.8 mm (2.1 in)30 December 2019

Period of Record Coverage

1971 to 2026
Days with data per year at Harrisville Sp 43 years of record at Harrisville Sp, 1971 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1971, 1980, 1983, 1984, 2022, 2026. 1971: 59 of 365 days1972: 363 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 363 of 366 days1977: 363 of 365 days1978: 362 of 365 days1979: 358 of 365 days1980: 305 of 366 days1981: 363 of 365 days1982: 357 of 365 days1983: 239 of 365 days1984: 209 of 366 days1998: 334 of 365 days1999: 364 of 365 days2000: 364 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 365 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: 364 of 365 days2022: 236 of 365 days2023: 365 of 365 days2024: 365 of 366 days2025: 363 of 365 days2026: 273 of 365 days1980200020102020
43 years of record at Harrisville Sp, 1971 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1971, 1980, 1983, 1984, 2022, 2026.
Days with data per year at Harrisville Sp
YearDays with dataShare of yearComplete
19715916%No
197236399%Yes
1973364100%Yes
1974365100%Yes
1975365100%Yes
197636399%Yes
197736399%Yes
197836299%Yes
197935898%Yes
198030583%No
198136399%Yes
198235798%Yes
198323965%No
198420957%No
199833492%Yes
1999364100%Yes
200036499%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021364100%Yes
202223665%No
2023365100%Yes
2024365100%Yes
202536399%Yes
202627375%No

Latest Records

20
Latest records at Harrisville Sp
DateStationRecordValueBeat old record byOld record stoodSignificance
14 October 2026Harrisville Sp, USdaily high max (Tie, Provisional)20.6 C (69.1 F)tie17 years2 of 100 (Routine)
2 October 2026Harrisville Sp, USdaily rain (Provisional)17.5 mm (0.7 in)1.8 mm (0.07 in)8 years9 of 100 (Routine)
15 July 2026Harrisville Sp, USdaily high max36.7 C (98.1 F)1.7 C (3.1 F)43 years21 of 100 (Routine)
15 July 2026Harrisville Sp, USdaily high min (Tie)21.1 C (70.0 F)tie43 years4 of 100 (Routine)
2 July 2026Harrisville Sp, USdaily high max (Tie)32.8 C (91.0 F)tie51 years5 of 100 (Routine)
1 July 2026Harrisville Sp, USdaily high min20.0 C (68.0 F)0.6 C (1.1 F)24 years13 of 100 (Routine)
1 July 2026Harrisville Sp, USdaily high max (Tie)32.8 C (91.0 F)tie24 years3 of 100 (Routine)
11 June 2026Harrisville Sp, USdaily high min (Tie)17.2 C (63.0 F)tie49 years4 of 100 (Routine)
27 May 2026Harrisville Sp, USdaily high max31.1 C (88.0 F)1.1 C (2.0 F)48 years20 of 100 (Routine)
24 May 2026Harrisville Sp, USdaily low max9.4 C (48.9 F)0.6 C (1.1 F)21 years12 of 100 (Routine)
11 May 2026Harrisville Sp, USdaily low min-1.7 C (28.9 F)0.6 C (1.1 F)24 years13 of 100 (Routine)
3 May 2026Harrisville Sp, USdaily low min (Tie)-2.2 C (28.0 F)tie24 years3 of 100 (Routine)
20 April 2026Harrisville Sp, USdaily low min-5.6 C (21.9 F)0.6 C (1.1 F)52 years21 of 100 (Routine)
14 April 2026Harrisville Sp, USdaily rain27.9 mm (1.1 in)4.0 mm (0.16 in)8 years12 of 100 (Routine)
8 April 2026Harrisville Sp, USdaily low max-2.2 C (28.0 F)1.1 C (2.0 F)23 years12 of 100 (Routine)
3 April 2026Harrisville Sp, USdaily rain38.4 mm (1.5 in)13.8 mm (0.5 in)43 years34 of 100 (Routine)
2 April 2026Harrisville Sp, USdaily low max (Tie)0.0 C (32.0 F)tie4 years1 of 100 (Routine)
20 March 2026Harrisville Sp, USdaily rain7.9 mm (0.31 in)0.8 mm (0.03 in)20 years12 of 100 (Routine)
19 March 2026Harrisville Sp, USdaily low min-14.4 C (6.1 F)1.1 C (2.0 F)53 years23 of 100 (Routine)
19 March 2026Harrisville Sp, USdaily snowfall8.1 cm (3.2 in)0.7 cm (0.3 in)12 years9 of 100 (Routine)

Climate Trend

36 complete years, 1972 to 2025
Annual mean temperature at Harrisville Sp as warming stripes, 1972 to 2025 One stripe for each of 36 complete years at Harrisville Sp, 1972 to 2025. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 2019, at 5.0 C (41.1 F), and the warmest was 2012, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.0 C (3.6 F). 1972: 5.7 C, -1.3 C from the station mean1973: 8.0 C, +1.0 C from the station mean1974: 7.0 C, 0.0 C from the station mean1975: 7.8 C, +0.8 C from the station mean1976: 6.4 C, -0.6 C from the station mean1977: 6.7 C, -0.3 C from the station mean1978: 6.1 C, -0.9 C from the station mean1979: 6.3 C, -0.7 C from the station mean1981: 7.2 C, +0.2 C from the station mean1982: 6.6 C, -0.4 C from the station mean1999: 8.0 C, +1.0 C from the station mean2000: 7.0 C, 0.0 C from the station mean2001: 8.3 C, +1.2 C from the station mean2002: 7.8 C, +0.8 C from the station mean2003: 6.5 C, -0.5 C from the station mean2004: 6.9 C, -0.1 C from the station mean2005: 7.7 C, +0.7 C from the station mean2006: 8.3 C, +1.3 C from the station mean2007: 7.7 C, +0.7 C from the station mean2008: 6.7 C, -0.3 C from the station mean2009: 6.0 C, -1.0 C from the station mean2010: 7.8 C, +0.8 C from the station mean2011: 7.0 C, 0.0 C from the station mean2012: 8.8 C, +1.7 C from the station mean2013: 6.4 C, -0.6 C from the station mean2014: 5.1 C, -2.0 C from the station mean2015: 6.6 C, -0.4 C from the station mean2016: 7.6 C, +0.6 C from the station mean2017: 7.0 C, 0.0 C from the station mean2018: 6.0 C, -1.0 C from the station mean2019: 5.0 C, -2.0 C from the station mean2020: 6.7 C, -0.3 C from the station mean2021: 7.7 C, +0.7 C from the station mean2023: 7.4 C, +0.4 C from the station mean2024: 7.9 C, +0.9 C from the station mean2025: 6.3 C, -0.7 C from the station mean197219751980198519901995200020052010201520202025
One stripe for each of 36 complete years at Harrisville Sp, 1972 to 2025. Blue stripes are years cooler than the station's own mean of 7.0 C (44.6 F); red stripes are warmer. The coolest year was 2019, at 5.0 C (41.1 F), and the warmest was 2012, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.0 C (3.6 F).
Annual mean temperature at Harrisville Sp as warming stripes, 1972 to 2025
YearAnnual mean temperatureDifference from the station mean
19725.7 C-1.26 C
19738.0 C+0.99 C
19747.0 C-0.03 C
19757.8 C+0.81 C
19766.4 C-0.56 C
19776.7 C-0.29 C
19786.1 C-0.91 C
19796.3 C-0.66 C
19817.2 C+0.19 C
19826.6 C-0.41 C
19998.0 C+1.01 C
20007.0 C+0.03 C
20018.3 C+1.25 C
20027.8 C+0.84 C
20036.5 C-0.50 C
20046.9 C-0.06 C
20057.7 C+0.68 C
20068.3 C+1.33 C
20077.7 C+0.66 C
20086.7 C-0.33 C
20096.0 C-0.96 C
20107.8 C+0.83 C
20117.0 C+0.02 C
20128.8 C+1.75 C
20136.4 C-0.58 C
20145.1 C-1.95 C
20156.6 C-0.42 C
20167.6 C+0.56 C
20177.0 C0.00 C
20186.0 C-1.02 C
20195.0 C-1.97 C
20206.7 C-0.26 C
20217.7 C+0.67 C
20237.4 C+0.38 C
20247.9 C+0.90 C
20256.3 C-0.73 C

The fitted trend in annual mean temperature here over 1972 to 2025 is 0.01 C (-0.17 to 0.19) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.30 to 0.35) per decade. The slope is a straight line fitted to 36 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Harrisville Sp
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.01 C (-0.17 to 0.19) per decade0.03 F (-0.30 to 0.35) per decade1972 to 202536Not clearly different from zero
Mean daily maximum-0.3 C (-0.5 to -0.1) per decade-0.5 F (-0.8 to -0.2) per decade1972 to 202536Fall
Mean daily minimum0.3 C (0.1 to 0.5) per decade0.5 F (0.2 to 0.9) per decade1972 to 202536Rise

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

1971 to 2026
Yearly extremes at Harrisville Sp: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)39.4 C (102.9 F)200133.9 C (93.0 F)43
Coldest night (TNn)-30.0 C (-22.0 F)1979-22.2 C (-8.0 F)43
Wettest day (Rx1day)87.1 mm (3.4 in)200548.3 mm (1.9 in)43
Wettest five days (Rx5day)123.7 mm (4.9 in)197268.3 mm (2.7 in)43
Longest dry spell (CDD)36 days202219 days43

Hottest day (TXx)

Hottest day (TXx) at Harrisville Sp by year The hottest day of the year at Harrisville Sp, 1971 to 2026. The record is 39.4 C (102.9 F) in 2001, marked on the chart; the median year is 33.9 C (93.0 F). 1020304019801990200020102020Record: 39.4 C (102.9 F) in 2001
The hottest day of the year at Harrisville Sp, 1971 to 2026. The record is 39.4 C (102.9 F) in 2001, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Harrisville Sp by year
YearHottest day (TXx)
197118.3 C (64.9 F)
197233.9 C (93.0 F)
197335.0 C (95.0 F)
197434.4 C (93.9 F)
197533.9 C (93.0 F)
197633.3 C (91.9 F)
197738.3 C (100.9 F)
197832.2 C (90.0 F)
197932.2 C (90.0 F)
198033.9 C (93.0 F)
198133.9 C (93.0 F)
198231.7 C (89.1 F)
198335.6 C (96.1 F)
198432.2 C (90.0 F)
199833.3 C (91.9 F)
199935.0 C (95.0 F)
200033.9 C (93.0 F)
200139.4 C (102.9 F)
200236.1 C (97.0 F)
200334.4 C (93.9 F)
200434.4 C (93.9 F)
200536.7 C (98.1 F)
200638.9 C (102.0 F)
200735.0 C (95.0 F)
200832.8 C (91.0 F)
200932.8 C (91.0 F)
201033.9 C (93.0 F)
201136.1 C (97.0 F)
201236.7 C (98.1 F)
201336.1 C (97.0 F)
201429.4 C (84.9 F)
201530.6 C (87.1 F)
201632.2 C (90.0 F)
201730.6 C (87.1 F)
201832.8 C (91.0 F)
201930.6 C (87.1 F)
202031.7 C (89.1 F)
202132.8 C (91.0 F)
202231.7 C (89.1 F)
202331.1 C (88.0 F)
202433.3 C (91.9 F)
202534.4 C (93.9 F)
202636.7 C (98.1 F)

Coldest night (TNn)

Coldest night (TNn) at Harrisville Sp by year The coldest night of the year at Harrisville Sp, 1971 to 2026. The record is -30.0 C (-22.0 F) in 1979, marked on the chart; the median year is -22.2 C (-8.0 F). -30-25-20-1519801990200020102020Record: -30.0 C (-22.0 F) in 1979
The coldest night of the year at Harrisville Sp, 1971 to 2026. The record is -30.0 C (-22.0 F) in 1979, marked on the chart; the median year is -22.2 C (-8.0 F).
Coldest night (TNn) at Harrisville Sp by year
YearColdest night (TNn)
1971-15.0 C (5.0 F)
1972-23.9 C (-11.0 F)
1973-23.3 C (-9.9 F)
1974-22.8 C (-9.0 F)
1975-22.8 C (-9.0 F)
1976-26.1 C (-15.0 F)
1977-23.3 C (-9.9 F)
1978-23.9 C (-11.0 F)
1979-30.0 C (-22.0 F)
1980-23.3 C (-9.9 F)
1981-26.7 C (-16.1 F)
1982-28.3 C (-18.9 F)
1983-19.4 C (-2.9 F)
1984-26.1 C (-15.0 F)
1998-16.1 C (3.0 F)
1999-22.2 C (-8.0 F)
2000-21.1 C (-6.0 F)
2001-18.9 C (-2.0 F)
2002-20.0 C (-4.0 F)
2003-23.3 C (-9.9 F)
2004-21.1 C (-6.0 F)
2005-20.6 C (-5.1 F)
2006-19.4 C (-2.9 F)
2007-22.2 C (-8.0 F)
2008-19.4 C (-2.9 F)
2009-22.2 C (-8.0 F)
2010-18.3 C (-0.9 F)
2011-21.1 C (-6.0 F)
2012-19.4 C (-2.9 F)
2013-20.0 C (-4.0 F)
2014-26.7 C (-16.1 F)
2015-26.7 C (-16.1 F)
2016-23.3 C (-9.9 F)
2017-21.1 C (-6.0 F)
2018-22.2 C (-8.0 F)
2019-25.0 C (-13.0 F)
2020-18.9 C (-2.0 F)
2021-18.3 C (-0.9 F)
2022-20.0 C (-4.0 F)
2023-20.0 C (-4.0 F)
2024-17.8 C (0.0 F)
2025-22.8 C (-9.0 F)
2026-21.7 C (-7.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Harrisville Sp by year The wettest day of the year at Harrisville Sp, 1971 to 2026. The record is 87.1 mm (3.4 in) in 2005, marked on the chart; the median year is 48.3 mm (1.9 in). 2040608010019801990200020102020Record: 87.1 mm (3.4 in) in 2005
The wettest day of the year at Harrisville Sp, 1971 to 2026. The record is 87.1 mm (3.4 in) in 2005, marked on the chart; the median year is 48.3 mm (1.9 in).
Wettest day (Rx1day) at Harrisville Sp by year
YearWettest day (Rx1day)
197141.1 mm (1.6 in)
197262.7 mm (2.5 in)
197353.8 mm (2.1 in)
197448.3 mm (1.9 in)
197536.8 mm (1.4 in)
197651.8 mm (2.0 in)
197736.6 mm (1.4 in)
197830.7 mm (1.2 in)
197941.1 mm (1.6 in)
198043.2 mm (1.7 in)
198169.1 mm (2.7 in)
198248.8 mm (1.9 in)
198336.1 mm (1.4 in)
198478.7 mm (3.1 in)
199855.6 mm (2.2 in)
199956.1 mm (2.2 in)
200057.9 mm (2.3 in)
200133.0 mm (1.3 in)
200261.0 mm (2.4 in)
200343.7 mm (1.7 in)
200431.2 mm (1.2 in)
200587.1 mm (3.4 in)
200677.5 mm (3.1 in)
200733.5 mm (1.3 in)
200861.5 mm (2.4 in)
200934.0 mm (1.3 in)
201071.9 mm (2.8 in)
201148.0 mm (1.9 in)
201238.4 mm (1.5 in)
201364.8 mm (2.6 in)
201468.6 mm (2.7 in)
201526.2 mm (1.0 in)
201651.6 mm (2.0 in)
201750.3 mm (2.0 in)
201871.1 mm (2.8 in)
201953.8 mm (2.1 in)
202030.5 mm (1.2 in)
202143.9 mm (1.7 in)
202247.5 mm (1.9 in)
202349.3 mm (1.9 in)
202430.5 mm (1.2 in)
202530.0 mm (1.2 in)
202638.4 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Harrisville Sp by year The wettest five days of the year at Harrisville Sp, 1971 to 2026. The record is 123.7 mm (4.9 in) in 1972, marked on the chart; the median year is 68.3 mm (2.7 in). 05010015019801990200020102020Record: 123.7 mm (4.9 in) in 1972
The wettest five days of the year at Harrisville Sp, 1971 to 2026. The record is 123.7 mm (4.9 in) in 1972, marked on the chart; the median year is 68.3 mm (2.7 in).
Wettest five days (Rx5day) at Harrisville Sp by year
YearWettest five days (Rx5day)
197152.5 mm (2.1 in)
1972123.7 mm (4.9 in)
197363.2 mm (2.5 in)
197478.5 mm (3.1 in)
197585.1 mm (3.4 in)
197692.2 mm (3.6 in)
197754.9 mm (2.2 in)
197864.1 mm (2.5 in)
197953.0 mm (2.1 in)
198049.8 mm (2.0 in)
198178.0 mm (3.1 in)
198260.0 mm (2.4 in)
198367.6 mm (2.7 in)
198478.7 mm (3.1 in)
199881.3 mm (3.2 in)
199986.5 mm (3.4 in)
200080.2 mm (3.2 in)
200179.8 mm (3.1 in)
200271.2 mm (2.8 in)
200368.6 mm (2.7 in)
200458.9 mm (2.3 in)
2005116.3 mm (4.6 in)
2006109.7 mm (4.3 in)
200766.0 mm (2.6 in)
200878.7 mm (3.1 in)
200963.0 mm (2.5 in)
2010116.3 mm (4.6 in)
201192.4 mm (3.6 in)
201267.1 mm (2.6 in)
201374.1 mm (2.9 in)
201474.2 mm (2.9 in)
201571.1 mm (2.8 in)
201663.2 mm (2.5 in)
201761.5 mm (2.4 in)
201873.9 mm (2.9 in)
201957.6 mm (2.3 in)
202063.6 mm (2.5 in)
202168.3 mm (2.7 in)
202258.5 mm (2.3 in)
202335.4 mm (1.4 in)
202421.1 mm (0.8 in)
202525.2 mm (1.0 in)
202622.4 mm (0.9 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Harrisville Sp by year The longest dry spell of the year at Harrisville Sp, 1971 to 2026. The record is 36 days in 2022, marked on the chart; the median year is 19 days. 01020304019801990200020102020Record: 36 days in 2022
The longest dry spell of the year at Harrisville Sp, 1971 to 2026. The record is 36 days in 2022, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Harrisville Sp by year
YearLongest dry spell (CDD)
197110 days
197214 days
197321 days
197421 days
197514 days
197620 days
197714 days
197818 days
197923 days
198013 days
198131 days
198214 days
198313 days
198420 days
199822 days
199921 days
200015 days
200123 days
200224 days
200325 days
200420 days
200516 days
200619 days
200728 days
200816 days
200921 days
201025 days
201114 days
201223 days
201314 days
201420 days
201519 days
201615 days
201713 days
201818 days
201914 days
202023 days
202123 days
202236 days
202325 days
202411 days
202510 days
20265 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

36 years with a frost

Across 36 years with a frost, the median last spring frost at Harrisville Sp falls on 12 May and the median first autumn frost on 15 October, which leaves a median of 157 days between them.

Fitted over all years, the growing season changes by +6.0 days per decade at this station.

Frost dates and growing season at Harrisville Sp
MeasureMedian, all yearsEarliest periodRecent period (1978 to 2025)Recent against earliestFitted trend
Last spring frost12 Mayn/a11 Mayn/a-2.6 days per decade
First autumn frost15 Octobern/a17 Octobern/a+3.4 days per decade
Growing days157 daysn/a159 daysn/a+6.0 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

33 years, 1972 to 2021

A day with at least 49.8 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 92.2 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Harrisville Sp: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years49.8 mm (2.0 in)
5 years64.1 mm (2.5 in)
10 years72.3 mm (2.8 in)
25 years81.2 mm (3.2 in)
50 years87.1 mm (3.4 in)Longer than the 33 years of record
100 years92.2 mm (3.6 in)Longer than the 33 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, 33 years of values from 1972 to 2021.

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: 87.1 mm (3.4 in) in 2005; 77.5 mm (3.1 in) in 2006; 71.9 mm (2.8 in) in 2010.

Download the Data

  • Data for Harrisville Sp standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Harrisville Sp 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).