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Built 2026-10-18 (18 October 2026)

Hill City Weather Records (USC00393868)

Record envelope, standing records and threshold days for Hill City (USC00393868), South Dakota, United States, with 118 years of record.

Key Facts for Hill City

  • Hill City (USC00393868) is a weather station in South Dakota, United States at 43.93 latitude and -103.56 longitude, 1,508 m (4,946 ft) above sea level.
  • The station reports from 1909 to 2026, 118 years of record.
  • 1,464 records set at Hill City still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Hill City set a daily record high minimum temperature of 6.1 C (43.0 F) on 11 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: South Dakota, United States, 43.93 latitude, -103.56 longitude.
  • Elevation: 1,508 m (4,946 ft).
  • Period of record: 1909 to 2026, 118 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

30 days at or beyond a record
Daily record high and record low at Hill City, with 2026 drawn through them The band shows the record high and record low for each calendar day at Hill City. The lines show the 2026 daily maximum and minimum. 30 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 Hill City. The lines show the 2026 daily maximum and minimum. 30 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Hill City, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.3 C (73.9 F)-36.7 C (-34.1 F)15.6 C (60.1 F)-27.2 C (-17.0 F)
Feb21.1 C (70.0 F)-38.9 C (-38.0 F)18.9 C (66.0 F)-22.8 C (-9.0 F)
Mar27.8 C (82.0 F)-31.7 C (-25.1 F)27.8 C (82.0 F)-18.3 C (-0.9 F)
Apr29.4 C (84.9 F)-22.8 C (-9.0 F)27.8 C (82.0 F)-7.8 C (18.0 F)
May32.2 C (90.0 F)-10.6 C (12.9 F)28.9 C (84.0 F)-10.6 C (12.9 F)
Jun37.2 C (99.0 F)-3.3 C (26.1 F)31.1 C (88.0 F)-2.2 C (28.0 F)
Jul38.3 C (100.9 F)-1.1 C (30.0 F)38.3 C (100.9 F)7.8 C (46.0 F)
Aug38.3 C (100.9 F)-2.8 C (27.0 F)36.7 C (98.1 F)2.8 C (37.0 F)
Sep36.7 C (98.1 F)-11.1 C (12.0 F)31.1 C (88.0 F)1.1 C (34.0 F)
Oct31.7 C (89.1 F)-29.4 C (-20.9 F)29.4 C (84.9 F)-0.6 C (30.9 F)
Nov25.6 C (78.1 F)-28.3 C (-18.9 F)n/an/a
Dec21.7 C (71.1 F)-39.4 C (-38.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Hill City by the year they were set 1,464 records at Hill City still stand. 2020 holds the most, with 57. 02040601968: 51970: 21971: 21972: 441974: 101975: 11976: 261977: 31978: 161979: 51988: 61989: 501990: 381991: 281992: 431993: 341994: 331995: 401996: 481997: 381998: 271999: 312000: 382001: 242002: 352003: 442004: 282005: 352006: 372007: 292008: 292009: 402010: 372011: 392012: 332013: 222014: 422015: 262016: 362017: 392018: 382019: 172020: 572021: 452022: 362023: 292024: 332025: 352026: 311968197519881993199820032008201320182023
1,464 records at Hill City still stand. 2020 holds the most, with 57.
Standing records at Hill City by the year they were set
Year setStanding records
19685
19702
19712
197244
197410
19751
197626
19773
197816
19795
19886
198950
199038
199128
199243
199334
199433
199540
199648
199738
199827
199931
200038
200124
200235
200344
200428
200535
200637
200729
200829
200940
201037
201139
201233
201322
201442
201526
201636
201739
201838
201917
202057
202145
202236
202329
202433
202535
202631

All-Time Record Progression

1 new records
When Hill City set new all-time records 1 all-time records were set at Hill City between 5 October 2013 and 5 October 2013. Each dot is a new record. Record snow depth5 October 2013: Record snow depth 81.3 cm (32.0 in)
1 all-time records were set at Hill City between 5 October 2013 and 5 October 2013. Each dot is a new record.
When Hill City set new all-time records
DateKindDetail
2013-10-05Record snow depthRecord snow depth 81.3 cm (32.0 in)

Wettest Day of Each Month

Jun: 130.6 mm (5.1 in)
Record daily precipitation for each month at Hill City The wettest day on record for each calendar month at Hill City. The most was 130.6 mm (5.1 in) on 10 June 1972. 050100150 Jan: 10.9 mm (0.4 in), 23 January 1964 Jan Feb: 25.7 mm (1.0 in), 29 February 2004 Feb Mar: 82.6 mm (3.3 in), 14 March 1973 Mar Apr: 87.4 mm (3.4 in), 19 April 2000 Apr May: 84.3 mm (3.3 in), 22 May 1962 May Jun: 130.6 mm (5.1 in), 10 June 1972 Jun Jul: 85.1 mm (3.4 in), 18 July 1974 Jul Aug: 46.7 mm (1.8 in), 5 August 1983 Aug Sep: 66.5 mm (2.6 in), 30 September 2014 Sep Oct: 65.0 mm (2.6 in), 13 October 2021 Oct Nov: 29.5 mm (1.2 in), 3 November 1956 Nov Dec: 43.7 mm (1.7 in), 25 December 1964 Dec
The wettest day on record for each calendar month at Hill City. The most was 130.6 mm (5.1 in) on 10 June 1972.
Record daily precipitation for each month at Hill City
MonthRecord daily precipitation (mm)Date
Jan10.9 mm (0.4 in)23 January 1964
Feb25.7 mm (1.0 in)29 February 2004
Mar82.6 mm (3.3 in)14 March 1973
Apr87.4 mm (3.4 in)19 April 2000
May84.3 mm (3.3 in)22 May 1962
Jun130.6 mm (5.1 in)10 June 1972
Jul85.1 mm (3.4 in)18 July 1974
Aug46.7 mm (1.8 in)5 August 1983
Sep66.5 mm (2.6 in)30 September 2014
Oct65.0 mm (2.6 in)13 October 2021
Nov29.5 mm (1.2 in)3 November 1956
Dec43.7 mm (1.7 in)25 December 1964

Period of Record Coverage

1968 to 2026
Days with data per year at Hill City 49 years of record at Hill City, 1968 to 2026. 12 years have data for under 90 percent of days and are left out of rankings: 1968, 1970, 1971, 1972, 1974, 1975, 1976, 1977 and others. 1968: 26 of 366 days1970: 28 of 365 days1971: 59 of 365 days1972: 153 of 366 days1974: 61 of 365 days1975: 28 of 365 days1976: 151 of 366 days1977: 30 of 365 days1978: 154 of 365 days1979: 89 of 365 days1988: 92 of 366 days1989: 364 of 365 days1990: 364 of 365 days1991: 364 of 365 days1992: 365 of 366 days1993: 363 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 365 of 365 days2002: 364 of 365 days2003: 364 of 365 days2004: 365 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: 360 of 366 days2013: 360 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 358 of 365 days2020: 364 of 366 days2021: 353 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 273 of 365 days19701990200020102020
49 years of record at Hill City, 1968 to 2026. 12 years have data for under 90 percent of days and are left out of rankings: 1968, 1970, 1971, 1972, 1974, 1975, 1976, 1977 and others.
Days with data per year at Hill City
YearDays with dataShare of yearComplete
1968267%No
1970288%No
19715916%No
197215342%No
19746117%No
1975288%No
197615141%No
1977308%No
197815442%No
19798924%No
19889225%No
1989364100%Yes
1990364100%Yes
1991364100%Yes
1992365100%Yes
199336399%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000365100%Yes
2001365100%Yes
2002364100%Yes
2003364100%Yes
2004365100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
201236098%Yes
201336099%Yes
2014365100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
201935898%Yes
202036499%Yes
202135397%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202627375%No

Latest Records

20
Latest records at Hill City
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Hill City, USdaily high min (Provisional)6.1 C (43.0 F)0.5 C (0.9 F)28 years14 of 100 (Routine)
10 October 2026Hill City, USdaily high max (Provisional)27.8 C (82.0 F)1.1 C (2.0 F)1 year6 of 100 (Routine)
8 October 2026Hill City, USdaily high max (Provisional)26.1 C (79.0 F)1.1 C (2.0 F)11 years9 of 100 (Routine)
7 October 2026Hill City, USdaily high max (Provisional)28.9 C (84.0 F)0.6 C (1.1 F)5 years6 of 100 (Routine)
6 October 2026Hill City, USdaily high max (Tie, Provisional)29.4 C (84.9 F)tie15 years2 of 100 (Routine)
22 September 2026Hill City, USdaily high min (Provisional)8.9 C (48.0 F)2.2 C (4.0 F)28 years17 of 100 (Routine)
20 September 2026Hill City, USdaily rain (Provisional)50.5 mm (2.0 in)34.5 mm (1.4 in)28 years58 of 100 (Notable)
7 September 2026Hill City, USdaily high min (Provisional)14.4 C (57.9 F)1.1 C (2.0 F)35 years17 of 100 (Routine)
16 August 2026Hill City, USdaily rain23.6 mm (0.9 in)11.9 mm (0.5 in)45 years20 of 100 (Routine)
14 August 2026Hill City, USdaily high min (Tie)13.9 C (57.0 F)tie23 years2 of 100 (Routine)
5 August 2026Hill City, USdaily low max19.4 C (66.9 F)1.2 C (2.2 F)32 years16 of 100 (Routine)
4 August 2026Hill City, USdaily low min (Tie)2.8 C (37.0 F)tie53 years5 of 100 (Routine)
3 August 2026Hill City, USdaily high max36.7 C (98.1 F)3.4 C (6.1 F)1 year13 of 100 (Routine)
27 July 2026Hill City, USdaily high max35.0 C (95.0 F)1.7 C (3.1 F)11 years11 of 100 (Routine)
27 July 2026Hill City, USdaily high min16.7 C (62.1 F)0.6 C (1.1 F)19 years11 of 100 (Routine)
26 July 2026Hill City, USall-time high max (Tie)38.3 C (100.9 F)tie19 years7 of 100 (Routine)
18 July 2026Hill City, USdaily high min (Tie)17.8 C (64.0 F)tie15 years2 of 100 (Routine)
15 July 2026Hill City, USdaily high min17.8 C (64.0 F)0.6 C (1.1 F)8 years8 of 100 (Routine)
13 July 2026Hill City, USdaily high min18.3 C (64.9 F)1.6 C (2.9 F)15 years13 of 100 (Routine)
13 July 2026Hill City, USdaily high max (Tie)35.6 C (96.1 F)tie23 years2 of 100 (Routine)

Climate Trend

36 complete years, 1989 to 2025
Annual mean temperature at Hill City as warming stripes, 1989 to 2025 One stripe for each of 36 complete years at Hill City, 1989 to 2025. Blue stripes are years cooler than the station's own mean of 6.0 C (42.8 F); red stripes are warmer. The coolest year was 1993, at 4.4 C (39.8 F), and the warmest was 2012, at 7.2 C (45.0 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1989: 5.1 C, -0.9 C from the station mean1990: 5.8 C, -0.2 C from the station mean1991: 5.9 C, -0.1 C from the station mean1992: 5.7 C, -0.3 C from the station mean1993: 4.4 C, -1.7 C from the station mean1994: 6.3 C, +0.3 C from the station mean1995: 5.3 C, -0.7 C from the station mean1996: 4.6 C, -1.4 C from the station mean1997: 5.4 C, -0.6 C from the station mean1998: 5.9 C, -0.1 C from the station mean1999: 6.7 C, +0.7 C from the station mean2000: 6.0 C, 0.0 C from the station mean2001: 6.2 C, +0.2 C from the station mean2002: 5.2 C, -0.8 C from the station mean2003: 5.8 C, -0.2 C from the station mean2004: 6.2 C, +0.2 C from the station mean2005: 6.5 C, +0.5 C from the station mean2006: 6.8 C, +0.8 C from the station mean2007: 7.2 C, +1.2 C from the station mean2008: 5.9 C, -0.1 C from the station mean2009: 6.3 C, +0.3 C from the station mean2010: 6.9 C, +0.9 C from the station mean2011: 6.6 C, +0.6 C from the station mean2012: 7.2 C, +1.2 C from the station mean2013: 5.2 C, -0.8 C from the station mean2014: 5.0 C, -1.0 C from the station mean2015: 6.6 C, +0.6 C from the station mean2016: 7.0 C, +1.0 C from the station mean2017: 6.2 C, +0.2 C from the station mean2018: 5.6 C, -0.4 C from the station mean2019: 5.5 C, -0.5 C from the station mean2020: 6.6 C, +0.6 C from the station mean2022: 5.4 C, -0.6 C from the station mean2023: 5.9 C, -0.2 C from the station mean2024: 6.9 C, +0.9 C from the station mean2025: 6.3 C, +0.3 C from the station mean19891995200020052010201520202025
One stripe for each of 36 complete years at Hill City, 1989 to 2025. Blue stripes are years cooler than the station's own mean of 6.0 C (42.8 F); red stripes are warmer. The coolest year was 1993, at 4.4 C (39.8 F), and the warmest was 2012, at 7.2 C (45.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Hill City as warming stripes, 1989 to 2025
YearAnnual mean temperatureDifference from the station mean
19895.1 C-0.89 C
19905.8 C-0.19 C
19915.9 C-0.09 C
19925.7 C-0.26 C
19934.4 C-1.65 C
19946.3 C+0.28 C
19955.3 C-0.67 C
19964.6 C-1.40 C
19975.4 C-0.62 C
19985.9 C-0.09 C
19996.7 C+0.68 C
20006.0 C-0.03 C
20016.2 C+0.23 C
20025.2 C-0.80 C
20035.8 C-0.17 C
20046.2 C+0.17 C
20056.5 C+0.48 C
20066.8 C+0.78 C
20077.2 C+1.17 C
20085.9 C-0.12 C
20096.3 C+0.28 C
20106.9 C+0.93 C
20116.6 C+0.64 C
20127.2 C+1.22 C
20135.2 C-0.76 C
20145.0 C-1.00 C
20156.6 C+0.61 C
20167.0 C+0.98 C
20176.2 C+0.16 C
20185.6 C-0.39 C
20195.5 C-0.47 C
20206.6 C+0.57 C
20225.4 C-0.62 C
20235.9 C-0.15 C
20246.9 C+0.93 C
20256.3 C+0.28 C

The annual mean temperature here has risen by 0.23 C (0.01 to 0.45) per decade over 1989 to 2025. In Fahrenheit: 0.42 F (0.02 to 0.81) 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 Hill City
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.23 C (0.01 to 0.45) per decade0.42 F (0.02 to 0.81) per decade1989 to 202536Rise
Mean daily maximum0.5 C (0.2 to 0.8) per decade0.9 F (0.4 to 1.4) per decade1989 to 202536Rise
Mean daily minimum-0.04 C (-0.29 to 0.21) per decade-0.1 F (-0.5 to 0.4) per decade1989 to 202536Not clearly different from zero

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

1909 to 2026
Yearly extremes at Hill City: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)200633.9 C (93.0 F)49
Coldest night (TNn)-39.4 C (-38.9 F)1990-30.6 C (-23.1 F)49
Wettest day (Rx1day)130.6 mm (5.1 in)197246.2 mm (1.8 in)75
Wettest five days (Rx5day)143.5 mm (5.6 in)196969.2 mm (2.7 in)75
Longest dry spell (CDD)67 days197529 days75

Hottest day (TXx)

Hottest day (TXx) at Hill City by year The hottest day of the year at Hill City, 1909 to 2026. The record is 38.3 C (100.9 F) in 2006, marked on the chart; the median year is 33.9 C (93.0 F). 10203040192019401960198020002020Record: 38.3 C (100.9 F) in 2006
The hottest day of the year at Hill City, 1909 to 2026. The record is 38.3 C (100.9 F) in 2006, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Hill City by year
YearHottest day (TXx)
1909n/a
1910n/a
1911n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
196828.9 C (84.0 F)
1969n/a
197017.8 C (64.0 F)
197120.0 C (68.0 F)
197235.0 C (95.0 F)
1973n/a
197429.4 C (84.9 F)
197510.6 C (51.1 F)
197633.9 C (93.0 F)
197731.7 C (89.1 F)
197832.8 C (91.0 F)
197916.7 C (62.1 F)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
198826.7 C (80.1 F)
198937.2 C (99.0 F)
199035.6 C (96.1 F)
199133.9 C (93.0 F)
199232.2 C (90.0 F)
199331.1 C (88.0 F)
199432.8 C (91.0 F)
199533.9 C (93.0 F)
199632.8 C (91.0 F)
199732.8 C (91.0 F)
199835.0 C (95.0 F)
199933.9 C (93.0 F)
200035.0 C (95.0 F)
200133.9 C (93.0 F)
200236.1 C (97.0 F)
200336.1 C (97.0 F)
200433.9 C (93.0 F)
200536.1 C (97.0 F)
200638.3 C (100.9 F)
200736.1 C (97.0 F)
200833.3 C (91.9 F)
200932.8 C (91.0 F)
201034.4 C (93.9 F)
201135.0 C (95.0 F)
201238.3 C (100.9 F)
201333.3 C (91.9 F)
201435.0 C (95.0 F)
201533.9 C (93.0 F)
201636.1 C (97.0 F)
201736.7 C (98.1 F)
201835.0 C (95.0 F)
201933.9 C (93.0 F)
202036.7 C (98.1 F)
202136.1 C (97.0 F)
202237.2 C (99.0 F)
202335.6 C (96.1 F)
202436.1 C (97.0 F)
202534.4 C (93.9 F)
202638.3 C (100.9 F)

Coldest night (TNn)

Coldest night (TNn) at Hill City by year The coldest night of the year at Hill City, 1909 to 2026. The record is -39.4 C (-38.9 F) in 1990, marked on the chart; the median year is -30.6 C (-23.1 F). -40-30-20-10010192019401960198020002020Record: -39.4 C (-38.9 F) in 1990
The coldest night of the year at Hill City, 1909 to 2026. The record is -39.4 C (-38.9 F) in 1990, marked on the chart; the median year is -30.6 C (-23.1 F).
Coldest night (TNn) at Hill City by year
YearColdest night (TNn)
1909n/a
1910n/a
1911n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968-13.3 C (8.1 F)
1969n/a
1970-20.6 C (-5.1 F)
1971-23.3 C (-9.9 F)
1972-35.6 C (-32.1 F)
1973n/a
1974-22.8 C (-9.0 F)
1975-34.4 C (-29.9 F)
1976-16.1 C (3.0 F)
19770.6 C (33.1 F)
1978-30.6 C (-23.1 F)
1979-32.2 C (-26.0 F)
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988-25.6 C (-14.1 F)
1989-38.9 C (-38.0 F)
1990-39.4 C (-38.9 F)
1991-31.1 C (-24.0 F)
1992-27.8 C (-18.0 F)
1993-35.0 C (-31.0 F)
1994-33.3 C (-27.9 F)
1995-30.0 C (-22.0 F)
1996-38.9 C (-38.0 F)
1997-28.9 C (-20.0 F)
1998-32.8 C (-27.0 F)
1999-27.8 C (-18.0 F)
2000-29.4 C (-20.9 F)
2001-32.8 C (-27.0 F)
2002-30.6 C (-23.1 F)
2003-34.4 C (-29.9 F)
2004-28.9 C (-20.0 F)
2005-29.4 C (-20.9 F)
2006-36.7 C (-34.1 F)
2007-31.7 C (-25.1 F)
2008-31.1 C (-24.0 F)
2009-29.4 C (-20.9 F)
2010-32.8 C (-27.0 F)
2011-31.1 C (-24.0 F)
2012-25.0 C (-13.0 F)
2013-28.9 C (-20.0 F)
2014-32.2 C (-26.0 F)
2015-25.0 C (-13.0 F)
2016-35.6 C (-32.1 F)
2017-30.0 C (-22.0 F)
2018-30.6 C (-23.1 F)
2019-28.9 C (-20.0 F)
2020-29.4 C (-20.9 F)
2021-35.0 C (-31.0 F)
2022-30.6 C (-23.1 F)
2023-34.4 C (-29.9 F)
2024-36.7 C (-34.1 F)
2025-33.3 C (-27.9 F)
2026-27.2 C (-17.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Hill City by year The wettest day of the year at Hill City, 1909 to 2026. The record is 130.6 mm (5.1 in) in 1972, marked on the chart; the median year is 46.2 mm (1.8 in). 050100150192019401960198020002020Record: 130.6 mm (5.1 in) in 1972
The wettest day of the year at Hill City, 1909 to 2026. The record is 130.6 mm (5.1 in) in 1972, marked on the chart; the median year is 46.2 mm (1.8 in).
Wettest day (Rx1day) at Hill City by year
YearWettest day (Rx1day)
190952.8 mm (2.1 in)
191041.1 mm (1.6 in)
191113.2 mm (0.5 in)
195549.8 mm (2.0 in)
195630.2 mm (1.2 in)
195743.4 mm (1.7 in)
195822.4 mm (0.9 in)
195926.7 mm (1.1 in)
196033.8 mm (1.3 in)
196134.0 mm (1.3 in)
196284.3 mm (3.3 in)
196337.8 mm (1.5 in)
196446.2 mm (1.8 in)
196572.9 mm (2.9 in)
196648.3 mm (1.9 in)
196732.5 mm (1.3 in)
196828.4 mm (1.1 in)
196964.5 mm (2.5 in)
197057.2 mm (2.3 in)
197179.5 mm (3.1 in)
1972130.6 mm (5.1 in)
197382.6 mm (3.3 in)
197485.1 mm (3.4 in)
197547.5 mm (1.9 in)
197675.9 mm (3.0 in)
197736.1 mm (1.4 in)
197834.3 mm (1.4 in)
197960.7 mm (2.4 in)
198028.4 mm (1.1 in)
198166.8 mm (2.6 in)
198237.3 mm (1.5 in)
198346.7 mm (1.8 in)
198448.5 mm (1.9 in)
198522.6 mm (0.9 in)
198639.6 mm (1.6 in)
198764.3 mm (2.5 in)
198871.9 mm (2.8 in)
198949.3 mm (1.9 in)
199029.7 mm (1.2 in)
199145.0 mm (1.8 in)
199229.5 mm (1.2 in)
199348.8 mm (1.9 in)
199434.5 mm (1.4 in)
199577.7 mm (3.1 in)
199650.5 mm (2.0 in)
199754.1 mm (2.1 in)
199848.5 mm (1.9 in)
199940.1 mm (1.6 in)
200087.4 mm (3.4 in)
200137.1 mm (1.5 in)
200245.0 mm (1.8 in)
200345.7 mm (1.8 in)
200425.7 mm (1.0 in)
200533.8 mm (1.3 in)
200627.4 mm (1.1 in)
200735.3 mm (1.4 in)
200842.9 mm (1.7 in)
200926.9 mm (1.1 in)
201038.4 mm (1.5 in)
201151.8 mm (2.0 in)
201266.0 mm (2.6 in)
201351.8 mm (2.0 in)
201466.5 mm (2.6 in)
201580.3 mm (3.2 in)
201629.2 mm (1.1 in)
201727.4 mm (1.1 in)
201860.2 mm (2.4 in)
201938.9 mm (1.5 in)
202048.0 mm (1.9 in)
202165.0 mm (2.6 in)
202239.1 mm (1.5 in)
202353.8 mm (2.1 in)
202452.3 mm (2.1 in)
202536.8 mm (1.4 in)
202650.5 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Hill City by year The wettest five days of the year at Hill City, 1909 to 2026. The record is 143.5 mm (5.6 in) in 1969, marked on the chart; the median year is 69.2 mm (2.7 in). 050100150192019401960198020002020Record: 143.5 mm (5.6 in) in 1969
The wettest five days of the year at Hill City, 1909 to 2026. The record is 143.5 mm (5.6 in) in 1969, marked on the chart; the median year is 69.2 mm (2.7 in).
Wettest five days (Rx5day) at Hill City by year
YearWettest five days (Rx5day)
190992.5 mm (3.6 in)
191046.2 mm (1.8 in)
191113.7 mm (0.5 in)
195559.0 mm (2.3 in)
195652.2 mm (2.1 in)
195758.3 mm (2.3 in)
195833.7 mm (1.3 in)
195953.4 mm (2.1 in)
196044.0 mm (1.7 in)
196148.0 mm (1.9 in)
1962126.0 mm (5.0 in)
196362.4 mm (2.5 in)
196475.1 mm (3.0 in)
196597.0 mm (3.8 in)
196664.8 mm (2.6 in)
196769.5 mm (2.7 in)
196860.2 mm (2.4 in)
1969143.5 mm (5.6 in)
197069.2 mm (2.7 in)
197197.0 mm (3.8 in)
1972131.1 mm (5.2 in)
197382.6 mm (3.3 in)
197495.3 mm (3.8 in)
197553.8 mm (2.1 in)
1976109.5 mm (4.3 in)
197778.5 mm (3.1 in)
197873.4 mm (2.9 in)
197971.6 mm (2.8 in)
198040.2 mm (1.6 in)
1981115.6 mm (4.6 in)
198258.9 mm (2.3 in)
198364.5 mm (2.5 in)
198476.7 mm (3.0 in)
198536.9 mm (1.5 in)
198668.8 mm (2.7 in)
198791.0 mm (3.6 in)
198871.9 mm (2.8 in)
198964.0 mm (2.5 in)
199047.6 mm (1.9 in)
199171.2 mm (2.8 in)
199235.3 mm (1.4 in)
199399.4 mm (3.9 in)
199451.0 mm (2.0 in)
199599.0 mm (3.9 in)
1996103.4 mm (4.1 in)
199791.2 mm (3.6 in)
199878.2 mm (3.1 in)
199972.3 mm (2.8 in)
200097.3 mm (3.8 in)
200158.7 mm (2.3 in)
200267.9 mm (2.7 in)
200366.5 mm (2.6 in)
200441.7 mm (1.6 in)
200567.0 mm (2.6 in)
200638.9 mm (1.5 in)
200747.7 mm (1.9 in)
2008102.6 mm (4.0 in)
200941.9 mm (1.6 in)
201058.2 mm (2.3 in)
201198.8 mm (3.9 in)
201289.6 mm (3.5 in)
201386.4 mm (3.4 in)
201496.9 mm (3.8 in)
2015116.1 mm (4.6 in)
201659.9 mm (2.4 in)
201731.6 mm (1.2 in)
2018117.1 mm (4.6 in)
201971.7 mm (2.8 in)
202060.0 mm (2.4 in)
202171.1 mm (2.8 in)
202250.1 mm (2.0 in)
202390.5 mm (3.6 in)
202452.3 mm (2.1 in)
202549.8 mm (2.0 in)
202683.0 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Hill City by year The longest dry spell of the year at Hill City, 1909 to 2026. The record is 67 days in 1975, marked on the chart; the median year is 29 days. 020406080192019401960198020002020Record: 67 days in 1975
The longest dry spell of the year at Hill City, 1909 to 2026. The record is 67 days in 1975, marked on the chart; the median year is 29 days.
Longest dry spell (CDD) at Hill City by year
YearLongest dry spell (CDD)
190924 days
191034 days
191127 days
195526 days
195628 days
195727 days
195859 days
195927 days
196041 days
196134 days
196237 days
196328 days
196439 days
196536 days
196636 days
196736 days
196829 days
196944 days
197023 days
197121 days
197228 days
197337 days
197424 days
197567 days
197650 days
197725 days
197822 days
197930 days
198027 days
198137 days
198214 days
198334 days
198432 days
198527 days
198631 days
198734 days
198836 days
198927 days
199038 days
199133 days
199228 days
199324 days
199422 days
199532 days
199633 days
199734 days
199840 days
199945 days
200025 days
200130 days
200227 days
200335 days
200430 days
200538 days
200644 days
200740 days
200821 days
200921 days
201028 days
201118 days
201242 days
201322 days
201425 days
201522 days
201627 days
201723 days
201825 days
201914 days
202034 days
202123 days
202224 days
202330 days
202429 days
202520 days
202631 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 Hill City falls on 6 June and the median first autumn frost on 9 September, which leaves a median of 95 days between them.

Fitted over all years, the growing season changes by +3.7 days per decade at this station.

Frost dates and growing season at Hill City
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost6 Junen/a7 Junen/a-0.7 days per decade
First autumn frost9 Septembern/a9 Septembern/a+3.0 days per decade
Growing days95 daysn/a96 daysn/a+3.7 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

71 years, 1910 to 2025

A day with at least 44.9 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 118.8 mm (4.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Hill City: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years44.9 mm (1.8 in)
5 years62.3 mm (2.5 in)
10 years74.7 mm (2.9 in)
25 years91.5 mm (3.6 in)
50 years104.8 mm (4.1 in)
100 years118.8 mm (4.7 in)Longer than the 71 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, 71 years of values from 1910 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: 130.6 mm (5.1 in) in 1972; 87.4 mm (3.4 in) in 2000; 85.1 mm (3.4 in) in 1974.

Download the Data

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