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Built 2026-10-14 (14 October 2026)

Red Rock Montana Weather Records (USR0000MRED)

Record envelope, standing records and threshold days for Red Rock Montana (USR0000MRED), Montana, United States, with 37 years of record.

Key Facts for Red Rock Montana

  • Red Rock Montana (USR0000MRED) is a weather station in Montana, United States at 44.68 latitude and -111.83 longitude, 2,039 m (6,690 ft) above sea level.
  • The station reports from 1987 to 2023, 37 years of record.
  • 1,464 records set at Red Rock Montana still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Red Rock Montana tied a daily record high maximum temperature of 23.3 C (73.9 F) on 8 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Montana, United States, 44.68 latitude, -111.83 longitude.
  • Elevation: 2,039 m (6,690 ft).
  • Period of record: 1987 to 2023, 37 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

37 days at or beyond a record
Daily record high and record low at Red Rock Montana, with 2026 drawn through them The band shows the record high and record low for each calendar day at Red Rock Montana. The lines show the 2026 daily maximum and minimum. 37 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Red Rock Montana. 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 Red Rock Montana, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan8.3 C (46.9 F)-39.4 C (-38.9 F)6.1 C (43.0 F)-25.0 C (-13.0 F)
Feb13.3 C (55.9 F)-40.0 C (-40.0 F)12.2 C (54.0 F)-22.2 C (-8.0 F)
Mar18.9 C (66.0 F)-31.1 C (-24.0 F)18.9 C (66.0 F)-14.4 C (6.1 F)
Apr25.0 C (77.0 F)-22.2 C (-8.0 F)18.9 C (66.0 F)-14.4 C (6.1 F)
May28.3 C (82.9 F)-11.7 C (10.9 F)26.7 C (80.1 F)-10.0 C (14.0 F)
Jun32.2 C (90.0 F)-6.7 C (19.9 F)27.2 C (81.0 F)-2.8 C (27.0 F)
Jul35.6 C (96.1 F)-2.8 C (27.0 F)33.3 C (91.9 F)1.1 C (34.0 F)
Aug33.3 C (91.9 F)-6.1 C (21.0 F)31.7 C (89.1 F)0.6 C (33.1 F)
Sep31.7 C (89.1 F)-11.1 C (12.0 F)23.9 C (75.0 F)-3.9 C (25.0 F)
Oct27.2 C (81.0 F)-26.1 C (-15.0 F)25.6 C (78.1 F)-1.7 C (28.9 F)
Nov19.4 C (66.9 F)-34.4 C (-29.9 F)n/an/a
Dec10.0 C (50.0 F)-43.3 C (-45.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Red Rock Montana by the year they were set 1,464 records at Red Rock Montana still stand. 2008 holds the most, with 56. 02040601987: 121988: 481989: 481990: 451991: 361992: 501993: 501994: 441995: 471996: 501997: 281998: 101999: 482000: 502001: 392002: 352003: 552004: 212005: 162006: 252007: 382008: 562009: 402010: 312011: 252012: 302013: 372014: 422015: 422016: 382017: 232018: 222019: 362020: 382021: 392022: 392023: 342024: 242025: 302026: 431987199119951999200320072011201520192023
1,464 records at Red Rock Montana still stand. 2008 holds the most, with 56.
Standing records at Red Rock Montana by the year they were set
Year setStanding records
198712
198848
198948
199045
199136
199250
199350
199444
199547
199650
199728
199810
199948
200050
200139
200235
200355
200421
200516
200625
200738
200856
200940
201031
201125
201230
201337
201442
201542
201638
201723
201822
201936
202038
202139
202239
202334
202424
202530
202643

Period of Record Coverage

1987 to 2026
Days with data per year at Red Rock Montana 40 years of record at Red Rock Montana, 1987 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1987, 1997, 1998, 2004, 2026. 1987: 79 of 365 days1988: 363 of 366 days1989: 365 of 365 days1990: 360 of 365 days1991: 364 of 365 days1992: 366 of 366 days1993: 353 of 365 days1994: 363 of 365 days1995: 363 of 365 days1996: 364 of 366 days1997: 301 of 365 days1998: 176 of 365 days1999: 364 of 365 days2000: 365 of 366 days2001: 349 of 365 days2002: 364 of 365 days2003: 334 of 365 days2004: 326 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 364 of 365 days2008: 360 of 366 days2009: 362 of 365 days2010: 359 of 365 days2011: 352 of 365 days2012: 356 of 366 days2013: 357 of 365 days2014: 353 of 365 days2015: 365 of 365 days2016: 363 of 366 days2017: 343 of 365 days2018: 365 of 365 days2019: 339 of 365 days2020: 366 of 366 days2021: 363 of 365 days2022: 363 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days19901995200020052010201520202025
40 years of record at Red Rock Montana, 1987 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1987, 1997, 1998, 2004, 2026.
Days with data per year at Red Rock Montana
YearDays with dataShare of yearComplete
19877922%No
198836399%Yes
1989365100%Yes
199036099%Yes
1991364100%Yes
1992366100%Yes
199335397%Yes
199436399%Yes
199536399%Yes
199636499%Yes
199730182%No
199817648%No
1999364100%Yes
2000365100%Yes
200134996%Yes
2002364100%Yes
200333492%Yes
200432689%No
2005365100%Yes
2006365100%Yes
2007364100%Yes
200836098%Yes
200936299%Yes
201035998%Yes
201135296%Yes
201235697%Yes
201335798%Yes
201435397%Yes
2015365100%Yes
201636399%Yes
201734394%Yes
2018365100%Yes
201933993%Yes
2020366100%Yes
202136399%Yes
202236399%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Red Rock Montana
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Red Rock Montana, USdaily high max (Tie, Provisional)23.3 C (73.9 F)tie29 years3 of 100 (Routine)
7 October 2026Red Rock Montana, USdaily high max (Provisional)24.4 C (75.9 F)2.7 C (4.9 F)29 years16 of 100 (Routine)
6 October 2026Red Rock Montana, USdaily high max (Provisional)24.4 C (75.9 F)1.1 C (2.0 F)5 years6 of 100 (Routine)
5 October 2026Red Rock Montana, USdaily high max (Provisional)25.6 C (78.1 F)2.3 C (4.1 F)23 years13 of 100 (Routine)
4 October 2026Red Rock Montana, USdaily high max (Provisional)24.4 C (75.9 F)1.6 C (2.9 F)23 years12 of 100 (Routine)
17 September 2026Red Rock Montana, USdaily high min (Tie, Provisional)7.2 C (45.0 F)tie12 years1 of 100 (Routine)
15 September 2026Red Rock Montana, USdaily low min (Provisional)-2.8 C (27.0 F)0.6 C (1.1 F)24 years12 of 100 (Routine)
28 August 2026Red Rock Montana, USdaily high min (Provisional)12.2 C (54.0 F)0.5 C (0.9 F)15 years9 of 100 (Routine)
21 August 2026Red Rock Montana, USdaily high max (Provisional)31.7 C (89.1 F)0.6 C (1.1 F)16 years10 of 100 (Routine)
20 August 2026Red Rock Montana, USdaily high max (Tie, Provisional)30.0 C (86.0 F)tie23 years2 of 100 (Routine)
5 August 2026Red Rock Montana, USdaily low min (Tie)2.8 C (37.0 F)tie29 years3 of 100 (Routine)
4 August 2026Red Rock Montana, USdaily low min (Tie)1.1 C (34.0 F)tie37 years3 of 100 (Routine)
27 July 2026Red Rock Montana, USdaily high min12.8 C (55.0 F)1.1 C (2.0 F)37 years18 of 100 (Routine)
26 July 2026Red Rock Montana, USdaily high min14.4 C (57.9 F)2.2 C (4.0 F)23 years17 of 100 (Routine)
24 July 2026Red Rock Montana, USdaily high max31.7 C (89.1 F)0.6 C (1.1 F)23 years11 of 100 (Routine)
23 July 2026Red Rock Montana, USdaily high min (Tie)12.2 C (54.0 F)tie20 years2 of 100 (Routine)
18 July 2026Red Rock Montana, USdaily high min11.1 C (52.0 F)0.5 C (0.9 F)12 years8 of 100 (Routine)
29 June 2026Red Rock Montana, USdaily low max (Tie)8.9 C (48.0 F)tie5 years1 of 100 (Routine)
28 June 2026Red Rock Montana, USdaily low max7.8 C (46.0 F)3.9 C (7.0 F)5 years12 of 100 (Routine)
27 June 2026Red Rock Montana, USdaily low max10.6 C (51.1 F)2.2 C (4.0 F)27 years16 of 100 (Routine)

Climate Trend

31 complete years, 1988 to 2025
Annual mean temperature at Red Rock Montana as warming stripes, 1988 to 2025 One stripe for each of 31 complete years at Red Rock Montana, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 2.5 C (36.4 F); red stripes are warmer. The coolest year was 1993, at 0.8 C (33.5 F), and the warmest was 2025, at 3.9 C (39.0 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1988: 2.6 C, +0.2 C from the station mean1989: 1.7 C, -0.7 C from the station mean1990: 1.8 C, -0.6 C from the station mean1991: 1.9 C, -0.6 C from the station mean1992: 2.8 C, +0.3 C from the station mean1993: 0.8 C, -1.7 C from the station mean1994: 3.0 C, +0.5 C from the station mean1995: 2.3 C, -0.1 C from the station mean1996: 2.2 C, -0.3 C from the station mean1999: 2.9 C, +0.5 C from the station mean2000: 2.8 C, +0.4 C from the station mean2002: 1.6 C, -0.8 C from the station mean2005: 1.9 C, -0.6 C from the station mean2006: 2.7 C, +0.2 C from the station mean2007: 3.2 C, +0.7 C from the station mean2008: 2.4 C, -0.1 C from the station mean2009: 1.6 C, -0.8 C from the station mean2010: 2.1 C, -0.4 C from the station mean2011: 1.8 C, -0.7 C from the station mean2012: 3.5 C, +1.1 C from the station mean2013: 2.0 C, -0.5 C from the station mean2014: 2.3 C, -0.2 C from the station mean2015: 3.3 C, +0.8 C from the station mean2016: 3.2 C, +0.7 C from the station mean2018: 2.7 C, +0.2 C from the station mean2020: 2.5 C, +0.1 C from the station mean2021: 3.0 C, +0.5 C from the station mean2022: 1.7 C, -0.7 C from the station mean2023: 2.5 C, 0.0 C from the station mean2024: 3.7 C, +1.3 C from the station mean2025: 3.9 C, +1.4 C from the station mean19881995200020052010201520202025
One stripe for each of 31 complete years at Red Rock Montana, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 2.5 C (36.4 F); red stripes are warmer. The coolest year was 1993, at 0.8 C (33.5 F), and the warmest was 2025, at 3.9 C (39.0 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Red Rock Montana as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
19882.6 C+0.18 C
19891.7 C-0.72 C
19901.8 C-0.64 C
19911.9 C-0.57 C
19922.8 C+0.32 C
19930.8 C-1.65 C
19943.0 C+0.53 C
19952.3 C-0.12 C
19962.2 C-0.31 C
19992.9 C+0.46 C
20002.8 C+0.36 C
20021.6 C-0.82 C
20051.9 C-0.61 C
20062.7 C+0.21 C
20073.2 C+0.72 C
20082.4 C-0.07 C
20091.6 C-0.84 C
20102.1 C-0.36 C
20111.8 C-0.68 C
20123.5 C+1.07 C
20132.0 C-0.46 C
20142.3 C-0.19 C
20153.3 C+0.80 C
20163.2 C+0.73 C
20182.7 C+0.25 C
20202.5 C+0.06 C
20213.0 C+0.50 C
20221.7 C-0.73 C
20232.5 C0.00 C
20243.7 C+1.28 C
20253.9 C+1.42 C

The annual mean temperature here has risen by 0.25 C (0.04 to 0.45) per decade over 1988 to 2025. In Fahrenheit: 0.4 F (0.1 to 0.8) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Red Rock Montana
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.25 C (0.04 to 0.45) per decade0.4 F (0.1 to 0.8) per decade1988 to 202531Rise
Mean daily maximum0.26 C (0.01 to 0.51) per decade0.47 F (0.02 to 0.92) per decade1988 to 202531Rise
Mean daily minimum0.23 C (0.02 to 0.43) per decade0.41 F (0.04 to 0.78) per decade1988 to 202531Rise

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

1987 to 2026
Yearly extremes at Red Rock Montana: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.6 C (96.1 F)200731.1 C (88.0 F)40
Coldest night (TNn)-43.3 C (-45.9 F)1990-33.9 C (-29.0 F)40

Hottest day (TXx)

Hottest day (TXx) at Red Rock Montana by year The hottest day of the year at Red Rock Montana, 1987 to 2026. The record is 35.6 C (96.1 F) in 2007, marked on the chart; the median year is 31.1 C (88.0 F). 1520253035401990200020102020Record: 35.6 C (96.1 F) in 2007
The hottest day of the year at Red Rock Montana, 1987 to 2026. The record is 35.6 C (96.1 F) in 2007, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Red Rock Montana by year
YearHottest day (TXx)
198719.4 C (66.9 F)
198832.2 C (90.0 F)
198930.6 C (87.1 F)
199031.7 C (89.1 F)
199130.0 C (86.0 F)
199229.4 C (84.9 F)
199326.1 C (79.0 F)
199432.2 C (90.0 F)
199528.9 C (84.0 F)
199630.6 C (87.1 F)
199729.4 C (84.9 F)
199831.1 C (88.0 F)
199929.4 C (84.9 F)
200033.3 C (91.9 F)
200132.2 C (90.0 F)
200235.0 C (95.0 F)
200333.9 C (93.0 F)
200430.0 C (86.0 F)
200531.1 C (88.0 F)
200633.3 C (91.9 F)
200735.6 C (96.1 F)
200830.6 C (87.1 F)
200931.1 C (88.0 F)
201029.4 C (84.9 F)
201130.0 C (86.0 F)
201230.6 C (87.1 F)
201332.8 C (91.0 F)
201430.0 C (86.0 F)
201532.2 C (90.0 F)
201630.0 C (86.0 F)
201731.1 C (88.0 F)
201833.3 C (91.9 F)
201931.1 C (88.0 F)
202032.8 C (91.0 F)
202131.7 C (89.1 F)
202231.7 C (89.1 F)
202331.7 C (89.1 F)
202432.2 C (90.0 F)
202530.6 C (87.1 F)
202633.3 C (91.9 F)

Coldest night (TNn)

Coldest night (TNn) at Red Rock Montana by year The coldest night of the year at Red Rock Montana, 1987 to 2026. The record is -43.3 C (-45.9 F) in 1990, marked on the chart; the median year is -33.9 C (-29.0 F). -45-40-35-30-251990200020102020Record: -43.3 C (-45.9 F) in 1990
The coldest night of the year at Red Rock Montana, 1987 to 2026. The record is -43.3 C (-45.9 F) in 1990, marked on the chart; the median year is -33.9 C (-29.0 F).
Coldest night (TNn) at Red Rock Montana by year
YearColdest night (TNn)
1987-25.6 C (-14.1 F)
1988-31.7 C (-25.1 F)
1989-38.3 C (-36.9 F)
1990-43.3 C (-45.9 F)
1991-33.9 C (-29.0 F)
1992-37.2 C (-35.0 F)
1993-35.0 C (-31.0 F)
1994-27.8 C (-18.0 F)
1995-33.9 C (-29.0 F)
1996-36.7 C (-34.1 F)
1997-33.3 C (-27.9 F)
1998-38.3 C (-36.9 F)
1999-28.3 C (-18.9 F)
2000-29.4 C (-20.9 F)
2001-32.8 C (-27.0 F)
2002-31.1 C (-24.0 F)
2003-37.2 C (-35.0 F)
2004-33.3 C (-27.9 F)
2005-33.9 C (-29.0 F)
2006-36.1 C (-33.0 F)
2007-38.9 C (-38.0 F)
2008-37.2 C (-35.0 F)
2009-37.2 C (-35.0 F)
2010-35.6 C (-32.1 F)
2011-34.4 C (-29.9 F)
2012-26.1 C (-15.0 F)
2013-34.4 C (-29.9 F)
2014-40.0 C (-40.0 F)
2015-31.7 C (-25.1 F)
2016-35.6 C (-32.1 F)
2017-33.3 C (-27.9 F)
2018-31.7 C (-25.1 F)
2019-33.3 C (-27.9 F)
2020-32.2 C (-26.0 F)
2021-31.7 C (-25.1 F)
2022-42.2 C (-44.0 F)
2023-39.4 C (-38.9 F)
2024-36.1 C (-33.0 F)
2025-33.9 C (-29.0 F)
2026-25.0 C (-13.0 F)

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

31 years with a frost

Across 31 years with a frost, the median last spring frost at Red Rock Montana falls on 21 June and the median first autumn frost on 13 August, which leaves a median of 59 days between them.

Fitted over all years, the growing season changes by +7.9 days per decade at this station.

Frost dates and growing season at Red Rock Montana
MeasureMedian, all yearsEarliest periodRecent period (1989 to 2025)Recent against earliestFitted trend
Last spring frost21 Junen/a21 Junen/a-1.2 days per decade
First autumn frost13 Augustn/a14 Augustn/a+6.7 days per decade
Growing days59 daysn/a60 daysn/a+7.9 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.

Download the Data

  • Data for Red Rock Montana standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Red Rock Montana 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).