Built 2026-10-16 (16 October 2026)

Hiko Weather Records (USC00263671)

Record envelope, standing records and threshold days for Hiko (USC00263671), Nevada, United States, with 38 years of record.

Key Facts for Hiko

  • Hiko (USC00263671) is a weather station in Nevada, United States at 37.56 latitude and -115.22 longitude, 1,189 m (3,900 ft) above sea level.
  • The station reports from 1989 to 2026, 38 years of record.
  • 1,464 records set at Hiko still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Hiko set a daily record precipitation of 12.7 mm (0.5 in) on 12 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Nevada, United States, 37.56 latitude, -115.22 longitude.
  • Elevation: 1,189 m (3,900 ft).
  • Period of record: 1989 to 2026, 38 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

37 days at or beyond a record
Daily record high and record low at Hiko, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hiko. The lines show the 2026 daily maximum and minimum. 37 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 Hiko. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hiko, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.9 C (75.0 F)-19.4 C (-2.9 F)21.1 C (70.0 F)-8.3 C (17.1 F)
Feb25.6 C (78.1 F)-13.3 C (8.1 F)25.6 C (78.1 F)-12.2 C (10.0 F)
Mar33.9 C (93.0 F)-9.4 C (15.1 F)33.9 C (93.0 F)-1.7 C (28.9 F)
Apr32.8 C (91.0 F)-11.1 C (12.0 F)28.9 C (84.0 F)0.0 C (32.0 F)
May38.3 C (100.9 F)-2.2 C (28.0 F)34.4 C (93.9 F)1.7 C (35.1 F)
Jun41.7 C (107.1 F)0.6 C (33.1 F)38.9 C (102.0 F)8.9 C (48.0 F)
Jul43.3 C (109.9 F)6.7 C (44.1 F)38.9 C (102.0 F)10.0 C (50.0 F)
Aug40.6 C (105.1 F)5.6 C (42.1 F)40.0 C (104.0 F)11.7 C (53.1 F)
Sep40.0 C (104.0 F)-0.6 C (30.9 F)37.2 C (99.0 F)7.8 C (46.0 F)
Oct37.2 C (99.0 F)-8.9 C (16.0 F)33.9 C (93.0 F)9.4 C (48.9 F)
Nov28.3 C (82.9 F)-11.1 C (12.0 F)n/an/a
Dec23.3 C (73.9 F)-23.9 C (-11.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hiko by the year they were set 1,464 records at Hiko still stand. 1996 holds the most, with 82. 02550751001989: 91990: 721991: 491992: 421993: 361994: 561995: 671996: 821997: 421998: 451999: 252000: 392001: 282002: 252003: 402004: 282005: 302006: 322007: 292008: 492009: 442010: 312011: 572012: 242013: 372014: 222015: 352016: 192017: 502018: 272019: 382020: 312021: 372022: 322023: 322024: 352025: 442026: 441989199319972001200520092013201720212025
1,464 records at Hiko still stand. 1996 holds the most, with 82.
Standing records at Hiko by the year they were set
Year setStanding records
19899
199072
199149
199242
199336
199456
199567
199682
199742
199845
199925
200039
200128
200225
200340
200428
200530
200632
200729
200849
200944
201031
201157
201224
201337
201422
201535
201619
201750
201827
201938
202031
202137
202232
202332
202435
202544
202644

Wettest Day of Each Month

Mar: 76.2 mm (3.0 in)
Record daily precipitation for each month at Hiko The wettest day on record for each calendar month at Hiko. The most was 76.2 mm (3.0 in) on 11 March 2006. 020406080 Jan: 33.0 mm (1.3 in), 2 January 2023 Jan Feb: 35.1 mm (1.4 in), 24 February 1998 Feb Mar: 76.2 mm (3.0 in), 11 March 2006 Mar Apr: 24.1 mm (0.9 in), 1 April 2026 Apr May: 27.9 mm (1.1 in), 11 May 2019 May Jun: 21.6 mm (0.9 in), 14 June 1997 Jun Jul: 36.8 mm (1.4 in), 9 July 1999 Jul Aug: 26.9 mm (1.1 in), 1 August 2022 Aug Sep: 50.0 mm (2.0 in), 3 September 2013 Sep Oct: 51.8 mm (2.0 in), 19 October 2015 Oct Nov: 37.3 mm (1.5 in), 22 November 1996 Nov Dec: 63.5 mm (2.5 in), 17 December 2006 Dec
The wettest day on record for each calendar month at Hiko. The most was 76.2 mm (3.0 in) on 11 March 2006.
Record daily precipitation for each month at Hiko
MonthRecord daily precipitation (mm)Date
Jan33.0 mm (1.3 in)2 January 2023
Feb35.1 mm (1.4 in)24 February 1998
Mar76.2 mm (3.0 in)11 March 2006
Apr24.1 mm (0.9 in)1 April 2026
May27.9 mm (1.1 in)11 May 2019
Jun21.6 mm (0.9 in)14 June 1997
Jul36.8 mm (1.4 in)9 July 1999
Aug26.9 mm (1.1 in)1 August 2022
Sep50.0 mm (2.0 in)3 September 2013
Oct51.8 mm (2.0 in)19 October 2015
Nov37.3 mm (1.5 in)22 November 1996
Dec63.5 mm (2.5 in)17 December 2006

Period of Record Coverage

1989 to 2026
Days with data per year at Hiko 38 years of record at Hiko, 1989 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1989, 1999, 2000, 2001, 2002, 2003, 2026. 1989: 122 of 365 days1990: 353 of 365 days1991: 351 of 365 days1992: 361 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 362 of 365 days1996: 355 of 366 days1997: 357 of 365 days1998: 333 of 365 days1999: 292 of 365 days2000: 295 of 366 days2001: 291 of 365 days2002: 285 of 365 days2003: 321 of 365 days2004: 359 of 366 days2005: 361 of 365 days2006: 359 of 365 days2007: 363 of 365 days2008: 366 of 366 days2009: 353 of 365 days2010: 364 of 365 days2011: 363 of 365 days2012: 337 of 366 days2013: 363 of 365 days2014: 365 of 365 days2015: 363 of 365 days2016: 366 of 366 days2017: 363 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 362 of 366 days2021: 364 of 365 days2022: 359 of 365 days2023: 362 of 365 days2024: 366 of 366 days2025: 364 of 365 days2026: 285 of 365 days19901995200020052010201520202025
38 years of record at Hiko, 1989 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 1989, 1999, 2000, 2001, 2002, 2003, 2026.
Days with data per year at Hiko
YearDays with dataShare of yearComplete
198912233%No
199035397%Yes
199135196%Yes
199236199%Yes
1993365100%Yes
1994365100%Yes
199536299%Yes
199635597%Yes
199735798%Yes
199833391%Yes
199929280%No
200029581%No
200129180%No
200228578%No
200332188%No
200435998%Yes
200536199%Yes
200635998%Yes
200736399%Yes
2008366100%Yes
200935397%Yes
2010364100%Yes
201136399%Yes
201233792%Yes
201336399%Yes
2014365100%Yes
201536399%Yes
2016366100%Yes
201736399%Yes
2018365100%Yes
2019365100%Yes
202036299%Yes
2021364100%Yes
202235998%Yes
202336299%Yes
2024366100%Yes
2025364100%Yes
202628578%No

Latest Records

20
Latest records at Hiko
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Hiko, USdaily rain (Provisional)12.7 mm (0.5 in)6.9 mm (0.27 in)4 years12 of 100 (Routine)
11 October 2026Hiko, USdaily rain (Provisional)26.7 mm (1.1 in)13.5 mm (0.5 in)13 years23 of 100 (Routine)
9 October 2026Hiko, USdaily high min (Tie, Provisional)12.8 C (55.0 F)tie1 year0 of 100 (Routine)
29 September 2026Hiko, USdaily rain (Provisional)15.2 mm (0.6 in)14.7 mm (0.6 in)24 years20 of 100 (Routine)
28 September 2026Hiko, USdaily high min (Tie, Provisional)14.4 C (57.9 F)tie35 years3 of 100 (Routine)
24 September 2026Hiko, USdaily high min (Tie, Provisional)13.3 C (55.9 F)tie28 years2 of 100 (Routine)
17 September 2026Hiko, USdaily high min (Provisional)18.3 C (64.9 F)2.2 C (4.0 F)12 years12 of 100 (Routine)
16 September 2026Hiko, USdaily high min (Provisional)15.6 C (60.1 F)0.6 C (1.1 F)1 year4 of 100 (Routine)
12 September 2026Hiko, USdaily high max (Tie, Provisional)36.7 C (98.1 F)tie32 years3 of 100 (Routine)
11 September 2026Hiko, USdaily high max (Provisional)37.2 C (99.0 F)0.5 C (0.9 F)32 years13 of 100 (Routine)
11 September 2026Hiko, USdaily high min (Tie, Provisional)17.8 C (64.0 F)tie24 years2 of 100 (Routine)
10 September 2026Hiko, USdaily high max (Provisional)36.7 C (98.1 F)0.6 C (1.1 F)4 years5 of 100 (Routine)
29 August 2026Hiko, USdaily high min (Provisional)21.7 C (71.1 F)3.4 C (6.1 F)28 years22 of 100 (Routine)
28 August 2026Hiko, USdaily high min (Provisional)20.0 C (68.0 F)1.7 C (3.1 F)32 years17 of 100 (Routine)
27 August 2026Hiko, USdaily high max (Tie, Provisional)38.3 C (100.9 F)tie15 years1 of 100 (Routine)
21 August 2026Hiko, USdaily high min (Provisional)20.0 C (68.0 F)0.6 C (1.1 F)32 years14 of 100 (Routine)
15 August 2026Hiko, USdaily low max28.9 C (84.0 F)0.5 C (0.9 F)20 years10 of 100 (Routine)
14 August 2026Hiko, USdaily low max28.9 C (84.0 F)0.5 C (0.9 F)12 years7 of 100 (Routine)
11 August 2026Hiko, USdaily high min21.1 C (70.0 F)0.5 C (0.9 F)1 year4 of 100 (Routine)
7 August 2026Hiko, USdaily high min (Tie)19.4 C (66.9 F)tie17 years2 of 100 (Routine)

Climate Trend

29 complete years, 1990 to 2025
Annual mean temperature at Hiko as warming stripes, 1990 to 2025 One stripe for each of 29 complete years at Hiko, 1990 to 2025. Blue stripes are years cooler than the station's own mean of 14.2 C (57.5 F); red stripes are warmer. The coolest year was 1990, at 12.8 C (55.0 F), and the warmest was 2003, at 15.2 C (59.3 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1990: 12.8 C, -1.4 C from the station mean1992: 14.0 C, -0.2 C from the station mean1993: 13.3 C, -0.9 C from the station mean1994: 13.9 C, -0.3 C from the station mean1995: 14.0 C, -0.2 C from the station mean1996: 14.7 C, +0.5 C from the station mean1997: 14.1 C, -0.1 C from the station mean2003: 15.2 C, +1.0 C from the station mean2004: 13.6 C, -0.6 C from the station mean2005: 14.3 C, +0.1 C from the station mean2006: 13.9 C, -0.3 C from the station mean2007: 14.4 C, +0.2 C from the station mean2008: 14.0 C, -0.1 C from the station mean2009: 14.1 C, -0.1 C from the station mean2010: 13.8 C, -0.4 C from the station mean2011: 13.4 C, -0.8 C from the station mean2013: 13.9 C, -0.2 C from the station mean2014: 14.9 C, +0.7 C from the station mean2015: 14.8 C, +0.6 C from the station mean2016: 14.4 C, +0.2 C from the station mean2017: 14.9 C, +0.7 C from the station mean2018: 14.8 C, +0.6 C from the station mean2019: 13.2 C, -1.0 C from the station mean2020: 14.5 C, +0.3 C from the station mean2021: 14.5 C, +0.3 C from the station mean2022: 14.4 C, +0.2 C from the station mean2023: 13.6 C, -0.6 C from the station mean2024: 15.0 C, +0.8 C from the station mean2025: 15.0 C, +0.9 C from the station mean19901995200020052010201520202025
One stripe for each of 29 complete years at Hiko, 1990 to 2025. Blue stripes are years cooler than the station's own mean of 14.2 C (57.5 F); red stripes are warmer. The coolest year was 1990, at 12.8 C (55.0 F), and the warmest was 2003, at 15.2 C (59.3 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Hiko as warming stripes, 1990 to 2025
YearAnnual mean temperatureDifference from the station mean
199012.8 C-1.43 C
199214.0 C-0.20 C
199313.3 C-0.91 C
199413.9 C-0.25 C
199514.0 C-0.19 C
199614.7 C+0.51 C
199714.1 C-0.12 C
200315.2 C+1.00 C
200413.6 C-0.55 C
200514.3 C+0.07 C
200613.9 C-0.26 C
200714.4 C+0.20 C
200814.0 C-0.14 C
200914.1 C-0.06 C
201013.8 C-0.35 C
201113.4 C-0.76 C
201313.9 C-0.24 C
201414.9 C+0.67 C
201514.8 C+0.64 C
201614.4 C+0.21 C
201714.9 C+0.75 C
201814.8 C+0.57 C
201913.2 C-0.96 C
202014.5 C+0.28 C
202114.5 C+0.34 C
202214.4 C+0.21 C
202313.6 C-0.59 C
202415.0 C+0.78 C
202515.0 C+0.86 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

1989 to 2026
Yearly extremes at Hiko: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.3 C (109.9 F)199840.0 C (104.0 F)38
Coldest night (TNn)-23.9 C (-11.0 F)1990-11.1 C (12.0 F)38
Wettest day (Rx1day)76.2 mm (3.0 in)200625.2 mm (1.0 in)38
Wettest five days (Rx5day)84.8 mm (3.3 in)200636.8 mm (1.4 in)38
Longest dry spell (CDD)122 days200964 days38

Hottest day (TXx)

Hottest day (TXx) at Hiko by year The hottest day of the year at Hiko, 1989 to 2026. The record is 43.3 C (109.9 F) in 1998, marked on the chart; the median year is 40.0 C (104.0 F). 3436384042441990200020102020Record: 43.3 C (109.9 F) in 1998
The hottest day of the year at Hiko, 1989 to 2026. The record is 43.3 C (109.9 F) in 1998, marked on the chart; the median year is 40.0 C (104.0 F).
Hottest day (TXx) at Hiko by year
YearHottest day (TXx)
198935.6 C (96.1 F)
199039.4 C (102.9 F)
199140.6 C (105.1 F)
199240.6 C (105.1 F)
199340.0 C (104.0 F)
199442.2 C (108.0 F)
199541.1 C (106.0 F)
199642.2 C (108.0 F)
199740.0 C (104.0 F)
199843.3 C (109.9 F)
199941.7 C (107.1 F)
200038.9 C (102.0 F)
200140.0 C (104.0 F)
200238.9 C (102.0 F)
200340.0 C (104.0 F)
200437.8 C (100.0 F)
200540.6 C (105.1 F)
200639.4 C (102.9 F)
200742.8 C (109.0 F)
200840.0 C (104.0 F)
200942.2 C (108.0 F)
201040.0 C (104.0 F)
201140.6 C (105.1 F)
201239.4 C (102.9 F)
201341.1 C (106.0 F)
201438.9 C (102.0 F)
201539.4 C (102.9 F)
201639.4 C (102.9 F)
201740.6 C (105.1 F)
201838.3 C (100.9 F)
201937.8 C (100.0 F)
202040.6 C (105.1 F)
202141.1 C (106.0 F)
202240.0 C (104.0 F)
202342.8 C (109.0 F)
202442.2 C (108.0 F)
202540.0 C (104.0 F)
202640.0 C (104.0 F)

Coldest night (TNn)

Coldest night (TNn) at Hiko by year The coldest night of the year at Hiko, 1989 to 2026. The record is -23.9 C (-11.0 F) in 1990, marked on the chart; the median year is -11.1 C (12.0 F). -25-20-15-10-51990200020102020Record: -23.9 C (-11.0 F) in 1990
The coldest night of the year at Hiko, 1989 to 2026. The record is -23.9 C (-11.0 F) in 1990, marked on the chart; the median year is -11.1 C (12.0 F).
Coldest night (TNn) at Hiko by year
YearColdest night (TNn)
1989-10.6 C (12.9 F)
1990-23.9 C (-11.0 F)
1991-11.1 C (12.0 F)
1992-14.4 C (6.1 F)
1993-13.9 C (7.0 F)
1994-10.6 C (12.9 F)
1995-9.4 C (15.1 F)
1996-12.2 C (10.0 F)
1997-19.4 C (-2.9 F)
1998-12.2 C (10.0 F)
1999-11.1 C (12.0 F)
2000-8.3 C (17.1 F)
2001-11.7 C (10.9 F)
2002-11.1 C (12.0 F)
2003-8.9 C (16.0 F)
2004-11.1 C (12.0 F)
2005-11.7 C (10.9 F)
2006-12.2 C (10.0 F)
2007-14.4 C (6.1 F)
2008-12.8 C (9.0 F)
2009-15.0 C (5.0 F)
2010-10.6 C (12.9 F)
2011-13.3 C (8.1 F)
2012-10.6 C (12.9 F)
2013-17.2 C (1.0 F)
2014-10.6 C (12.9 F)
2015-10.0 C (14.0 F)
2016-13.3 C (8.1 F)
2017-8.9 C (16.0 F)
2018-12.8 C (9.0 F)
2019-11.1 C (12.0 F)
2020-10.6 C (12.9 F)
2021-8.3 C (17.1 F)
2022-10.0 C (14.0 F)
2023-9.4 C (15.1 F)
2024-11.1 C (12.0 F)
2025-12.2 C (10.0 F)
2026-12.2 C (10.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hiko by year The wettest day of the year at Hiko, 1989 to 2026. The record is 76.2 mm (3.0 in) in 2006, marked on the chart; the median year is 25.2 mm (1.0 in). 0204060801990200020102020Record: 76.2 mm (3.0 in) in 2006
The wettest day of the year at Hiko, 1989 to 2026. The record is 76.2 mm (3.0 in) in 2006, marked on the chart; the median year is 25.2 mm (1.0 in).
Wettest day (Rx1day) at Hiko by year
YearWettest day (Rx1day)
19892.0 mm (0.08 in)
199017.8 mm (0.7 in)
199112.7 mm (0.5 in)
199220.1 mm (0.8 in)
199324.9 mm (1.0 in)
199426.2 mm (1.0 in)
199513.7 mm (0.5 in)
199637.3 mm (1.5 in)
199721.6 mm (0.9 in)
199835.1 mm (1.4 in)
199936.8 mm (1.4 in)
200022.6 mm (0.9 in)
200112.7 mm (0.5 in)
200213.7 mm (0.5 in)
200326.7 mm (1.1 in)
200425.4 mm (1.0 in)
200523.6 mm (0.9 in)
200676.2 mm (3.0 in)
200719.8 mm (0.8 in)
200819.3 mm (0.8 in)
200926.9 mm (1.1 in)
201036.1 mm (1.4 in)
201112.7 mm (0.5 in)
201225.4 mm (1.0 in)
201350.0 mm (2.0 in)
201426.7 mm (1.1 in)
201551.8 mm (2.0 in)
201625.4 mm (1.0 in)
201726.9 mm (1.1 in)
201822.1 mm (0.9 in)
201927.9 mm (1.1 in)
202018.5 mm (0.7 in)
202116.5 mm (0.6 in)
202226.9 mm (1.1 in)
202333.0 mm (1.3 in)
202421.6 mm (0.9 in)
202517.8 mm (0.7 in)
202626.7 mm (1.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hiko by year The wettest five days of the year at Hiko, 1989 to 2026. The record is 84.8 mm (3.3 in) in 2006, marked on the chart; the median year is 36.8 mm (1.4 in). 02550751001990200020102020Record: 84.8 mm (3.3 in) in 2006
The wettest five days of the year at Hiko, 1989 to 2026. The record is 84.8 mm (3.3 in) in 2006, marked on the chart; the median year is 36.8 mm (1.4 in).
Wettest five days (Rx5day) at Hiko by year
YearWettest five days (Rx5day)
19892.0 mm (0.08 in)
199026.4 mm (1.0 in)
199122.6 mm (0.9 in)
199233.5 mm (1.3 in)
199342.7 mm (1.7 in)
199444.5 mm (1.8 in)
199530.7 mm (1.2 in)
199648.5 mm (1.9 in)
199731.0 mm (1.2 in)
199850.5 mm (2.0 in)
199937.1 mm (1.5 in)
200037.1 mm (1.5 in)
200121.3 mm (0.8 in)
200214.2 mm (0.6 in)
200330.3 mm (1.2 in)
200452.6 mm (2.1 in)
200545.8 mm (1.8 in)
200684.8 mm (3.3 in)
200724.9 mm (1.0 in)
200829.2 mm (1.1 in)
200943.6 mm (1.7 in)
201076.9 mm (3.0 in)
201115.7 mm (0.6 in)
201226.2 mm (1.0 in)
201351.0 mm (2.0 in)
201441.2 mm (1.6 in)
201557.2 mm (2.3 in)
201632.3 mm (1.3 in)
201736.4 mm (1.4 in)
201830.7 mm (1.2 in)
201943.2 mm (1.7 in)
202021.8 mm (0.9 in)
202121.1 mm (0.8 in)
202258.1 mm (2.3 in)
202338.8 mm (1.5 in)
202448.5 mm (1.9 in)
202532.5 mm (1.3 in)
202639.4 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hiko by year The longest dry spell of the year at Hiko, 1989 to 2026. The record is 122 days in 2009, marked on the chart; the median year is 64 days. 2550751001251990200020102020Record: 122 days in 2009
The longest dry spell of the year at Hiko, 1989 to 2026. The record is 122 days in 2009, marked on the chart; the median year is 64 days.
Longest dry spell (CDD) at Hiko by year
YearLongest dry spell (CDD)
198966 days
199033 days
199157 days
199253 days
199359 days
199470 days
1995111 days
199671 days
199745 days
199841 days
1999107 days
200051 days
200177 days
200280 days
200398 days
2004101 days
200534 days
200653 days
200769 days
200868 days
2009122 days
201056 days
201146 days
201288 days
201360 days
201466 days
201552 days
201660 days
2017108 days
201855 days
201979 days
202062 days
202152 days
202287 days
202345 days
2024100 days
202544 days
202681 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 Hiko falls on 19 April and the median first autumn frost on 24 October, which leaves a median of 193 days between them.

Fitted over all years, the growing season changes by -1.1 days per decade at this station.

Frost dates and growing season at Hiko
MeasureMedian, all yearsEarliest periodRecent period (1990 to 2025)Recent against earliestFitted trend
Last spring frost19 Apriln/a19 Apriln/a+3.7 days per decade
First autumn frost24 Octobern/a24 Octobern/a+2.5 days per decade
Growing days193 daysn/a193 daysn/a-1.1 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

34 years, 1990 to 2025

A day with at least 23.7 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 76.1 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Hiko: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years23.7 mm (0.9 in)
5 years33.7 mm (1.3 in)
10 years41.6 mm (1.6 in)
25 years53.6 mm (2.1 in)
50 years64.1 mm (2.5 in)Longer than the 34 years of record
100 years76.1 mm (3.0 in)Longer than the 34 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, 34 years of values from 1990 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: 76.2 mm (3.0 in) in 2006; 51.8 mm (2.0 in) in 2015; 50.0 mm (2.0 in) in 2013.

Download the Data

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