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Built 2026-10-15 (15 October 2026)

Fishtail Montana Weather Records (USR0000MFIS)

Record envelope, standing records and threshold days for Fishtail Montana (USR0000MFIS), Montana, United States, with 32 years of record.

Key Facts for Fishtail Montana

  • Fishtail Montana (USR0000MFIS) is a weather station in Montana, United States at 45.46 latitude and -109.57 longitude, 1,387 m (4,550 ft) above sea level.
  • The station reports from 1992 to 2023, 32 years of record.
  • 1,464 records set at Fishtail Montana still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Fishtail Montana set a daily record high maximum temperature of 27.8 C (82.0 F) on 9 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, 45.46 latitude, -109.57 longitude.
  • Elevation: 1,387 m (4,550 ft).
  • Period of record: 1992 to 2023, 32 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

39 days at or beyond a record
Daily record high and record low at Fishtail Montana, with 2026 drawn through them The band shows the record high and record low for each calendar day at Fishtail Montana. The lines show the 2026 daily maximum and minimum. 39 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 Fishtail Montana. The lines show the 2026 daily maximum and minimum. 39 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Fishtail Montana, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan19.4 C (66.9 F)-36.7 C (-34.1 F)19.4 C (66.9 F)-20.6 C (-5.1 F)
Feb21.7 C (71.1 F)-30.6 C (-23.1 F)21.7 C (71.1 F)-18.9 C (-2.0 F)
Mar26.1 C (79.0 F)-27.8 C (-18.0 F)26.1 C (79.0 F)-13.9 C (7.0 F)
Apr27.3 C (81.1 F)-18.3 C (-0.9 F)26.7 C (80.1 F)-5.6 C (21.9 F)
May32.2 C (90.0 F)-7.8 C (18.0 F)30.6 C (87.1 F)-2.8 C (27.0 F)
Jun37.8 C (100.0 F)-0.6 C (30.9 F)31.7 C (89.1 F)3.3 C (37.9 F)
Jul42.2 C (108.0 F)3.3 C (37.9 F)42.2 C (108.0 F)10.0 C (50.0 F)
Aug39.4 C (102.9 F)1.1 C (34.0 F)39.4 C (102.9 F)7.2 C (45.0 F)
Sep38.9 C (102.0 F)-6.1 C (21.0 F)31.1 C (88.0 F)3.3 C (37.9 F)
Oct32.2 C (90.0 F)-19.4 C (-2.9 F)28.3 C (82.9 F)0.0 C (32.0 F)
Nov23.3 C (73.9 F)-27.8 C (-18.0 F)n/an/a
Dec20.6 C (69.1 F)-33.9 C (-29.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Fishtail Montana by the year they were set 1,464 records at Fishtail Montana still stand. 1993 holds the most, with 73. 0204060801992: 71993: 731994: 361995: 651996: 551997: 271998: 241999: 512000: 422001: 362002: 462003: 592004: 312005: 532006: 482007: 342008: 412009: 482010: 302011: 392012: 502013: 292014: 402015: 452016: 312017: 412018: 312019: 392020: 482021: 652022: 542023: 262024: 402025: 342026: 46199219962000200420082012201620202024
1,464 records at Fishtail Montana still stand. 1993 holds the most, with 73.
Standing records at Fishtail Montana by the year they were set
Year setStanding records
19927
199373
199436
199565
199655
199727
199824
199951
200042
200136
200246
200359
200431
200553
200648
200734
200841
200948
201030
201139
201250
201329
201440
201545
201631
201741
201831
201939
202048
202165
202254
202326
202440
202534
202646

All-Time Record Progression

2 new records
When Fishtail Montana set new all-time records 2 all-time records were set at Fishtail Montana between 13 January 2024 and 12 July 2026. Each dot is a new record. Record low minimum temperatureRecord high maximum temperature13 January 2024: Record low minimum temperature -36.7 C (-34.1 F)12 July 2026: Record high maximum temperature 42.2 C (108.0 F)2025
2 all-time records were set at Fishtail Montana between 13 January 2024 and 12 July 2026. Each dot is a new record.
When Fishtail Montana set new all-time records
DateKindDetail
2024-01-13Record low minimum temperatureRecord low minimum temperature -36.7 C (-34.1 F)
2026-07-12Record high maximum temperatureRecord high maximum temperature 42.2 C (108.0 F)

Period of Record Coverage

1992 to 2026
Days with data per year at Fishtail Montana 35 years of record at Fishtail Montana, 1992 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1992, 1996, 1997, 1998, 2026. 1992: 66 of 366 days1993: 331 of 365 days1994: 339 of 365 days1995: 360 of 365 days1996: 263 of 366 days1997: 234 of 365 days1998: 319 of 365 days1999: 362 of 365 days2000: 366 of 366 days2001: 364 of 365 days2002: 353 of 365 days2003: 363 of 365 days2004: 362 of 366 days2005: 364 of 365 days2006: 363 of 365 days2007: 364 of 365 days2008: 364 of 366 days2009: 361 of 365 days2010: 364 of 365 days2011: 364 of 365 days2012: 363 of 366 days2013: 359 of 365 days2014: 362 of 365 days2015: 364 of 365 days2016: 365 of 366 days2017: 364 of 365 days2018: 362 of 365 days2019: 362 of 365 days2020: 363 of 366 days2021: 361 of 365 days2022: 363 of 365 days2023: 361 of 365 days2024: 364 of 366 days2025: 363 of 365 days2026: 282 of 365 days1995200020052010201520202025
35 years of record at Fishtail Montana, 1992 to 2026. 5 years have data for under 90 percent of days and are left out of rankings: 1992, 1996, 1997, 1998, 2026.
Days with data per year at Fishtail Montana
YearDays with dataShare of yearComplete
19926618%No
199333191%Yes
199433993%Yes
199536099%Yes
199626372%No
199723464%No
199831987%No
199936299%Yes
2000366100%Yes
2001364100%Yes
200235397%Yes
200336399%Yes
200436299%Yes
2005364100%Yes
200636399%Yes
2007364100%Yes
200836499%Yes
200936199%Yes
2010364100%Yes
2011364100%Yes
201236399%Yes
201335998%Yes
201436299%Yes
2015364100%Yes
2016365100%Yes
2017364100%Yes
201836299%Yes
201936299%Yes
202036399%Yes
202136199%Yes
202236399%Yes
202336199%Yes
202436499%Yes
202536399%Yes
202628277%No

Latest Records

20
Latest records at Fishtail Montana
DateStationRecordValueBeat old record byOld record stoodSignificance
9 October 2026Fishtail Montana, USdaily high max (Provisional)27.8 C (82.0 F)0.6 C (1.1 F)1 year3 of 100 (Routine)
9 October 2026Fishtail Montana, USdaily high min (Provisional)14.4 C (57.9 F)0.5 C (0.9 F)1 year3 of 100 (Routine)
7 October 2026Fishtail Montana, USdaily high max (Tie, Provisional)25.6 C (78.1 F)tie23 years2 of 100 (Routine)
5 October 2026Fishtail Montana, USdaily high min (Provisional)16.1 C (61.0 F)1.8 C (3.2 F)4 years7 of 100 (Routine)
8 August 2026Fishtail Montana, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)24 years11 of 100 (Routine)
4 August 2026Fishtail Montana, USdaily low min7.2 C (45.0 F)0.6 C (1.1 F)13 years8 of 100 (Routine)
3 August 2026Fishtail Montana, USdaily low min (Tie)8.3 C (46.9 F)tie32 years3 of 100 (Routine)
1 August 2026Fishtail Montana, USmonthly high max39.4 C (102.9 F)1.6 C (2.9 F)7 years18 of 100 (Routine)
31 July 2026Fishtail Montana, USdaily high max (Tie)35.0 C (95.0 F)tie25 years2 of 100 (Routine)
30 July 2026Fishtail Montana, USdaily high min (Tie)18.9 C (66.0 F)tie19 years2 of 100 (Routine)
26 July 2026Fishtail Montana, USdaily high min20.6 C (69.1 F)2.3 C (4.1 F)20 years16 of 100 (Routine)
26 July 2026Fishtail Montana, USdaily high max (Tie)34.4 C (93.9 F)tie17 years2 of 100 (Routine)
25 July 2026Fishtail Montana, USdaily high max37.8 C (100.0 F)2.8 C (5.0 F)16 years13 of 100 (Routine)
25 July 2026Fishtail Montana, USdaily high min (Tie)22.2 C (72.0 F)tie1 year0 of 100 (Routine)
12 July 2026Fishtail Montana, USall-time high max42.2 C (108.0 F)2.8 C (5.0 F)24 years36 of 100 (Notable)
12 July 2026Fishtail Montana, USdaily high min19.4 C (66.9 F)1.1 C (2.0 F)24 years13 of 100 (Routine)
11 July 2026Fishtail Montana, USdaily high max38.9 C (102.0 F)2.8 C (5.0 F)24 years16 of 100 (Routine)
16 June 2026Fishtail Montana, USdaily high max31.7 C (89.1 F)3.4 C (6.1 F)24 years16 of 100 (Routine)
16 June 2026Fishtail Montana, USdaily high min14.4 C (57.9 F)1.1 C (2.0 F)31 years15 of 100 (Routine)
31 May 2026Fishtail Montana, USdaily low max (Tie)13.9 C (57.0 F)tie12 years1 of 100 (Routine)

Climate Trend

28 complete years, 1995 to 2025
Annual mean temperature at Fishtail Montana as warming stripes, 1995 to 2025 One stripe for each of 28 complete years at Fishtail Montana, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 2019, at 6.1 C (43.0 F), and the warmest was 2012, at 9.8 C (49.6 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1995: 7.6 C, -0.8 C from the station mean1999: 9.2 C, +0.9 C from the station mean2000: 8.3 C, -0.1 C from the station mean2001: 8.9 C, +0.6 C from the station mean2002: 7.7 C, -0.6 C from the station mean2003: 8.8 C, +0.4 C from the station mean2004: 8.3 C, -0.1 C from the station mean2005: 8.5 C, +0.1 C from the station mean2006: 9.2 C, +0.9 C from the station mean2007: 8.9 C, +0.5 C from the station mean2008: 7.7 C, -0.7 C from the station mean2009: 7.6 C, -0.8 C from the station mean2010: 8.0 C, -0.3 C from the station mean2011: 7.9 C, -0.5 C from the station mean2012: 9.8 C, +1.4 C from the station mean2013: 8.6 C, +0.2 C from the station mean2014: 7.8 C, -0.6 C from the station mean2015: 9.2 C, +0.9 C from the station mean2016: 9.1 C, +0.7 C from the station mean2017: 8.3 C, -0.1 C from the station mean2018: 7.3 C, -1.1 C from the station mean2019: 6.1 C, -2.3 C from the station mean2020: 8.5 C, +0.1 C from the station mean2021: 8.8 C, +0.4 C from the station mean2022: 7.9 C, -0.5 C from the station mean2023: 8.5 C, +0.1 C from the station mean2024: 9.2 C, +0.8 C from the station mean2025: 8.9 C, +0.5 C from the station mean1995200020052010201520202025
One stripe for each of 28 complete years at Fishtail Montana, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 2019, at 6.1 C (43.0 F), and the warmest was 2012, at 9.8 C (49.6 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Fishtail Montana as warming stripes, 1995 to 2025
YearAnnual mean temperatureDifference from the station mean
19957.6 C-0.77 C
19999.2 C+0.86 C
20008.3 C-0.06 C
20018.9 C+0.57 C
20027.7 C-0.63 C
20038.8 C+0.41 C
20048.3 C-0.08 C
20058.5 C+0.10 C
20069.2 C+0.87 C
20078.9 C+0.48 C
20087.7 C-0.72 C
20097.6 C-0.79 C
20108.0 C-0.35 C
20117.9 C-0.47 C
20129.8 C+1.39 C
20138.6 C+0.24 C
20147.8 C-0.58 C
20159.2 C+0.86 C
20169.1 C+0.69 C
20178.3 C-0.11 C
20187.3 C-1.09 C
20196.1 C-2.28 C
20208.5 C+0.08 C
20218.8 C+0.40 C
20227.9 C-0.49 C
20238.5 C+0.11 C
20249.2 C+0.82 C
20258.9 C+0.52 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

1992 to 2026
Yearly extremes at Fishtail Montana: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)202636.1 C (97.0 F)35
Coldest night (TNn)-36.7 C (-34.1 F)2024-26.1 C (-15.0 F)35

Hottest day (TXx)

Hottest day (TXx) at Fishtail Montana by year The hottest day of the year at Fishtail Montana, 1992 to 2026. The record is 42.2 C (108.0 F) in 2026, marked on the chart; the median year is 36.1 C (97.0 F). 1020304050200020102020Record: 42.2 C (108.0 F) in 2026
The hottest day of the year at Fishtail Montana, 1992 to 2026. The record is 42.2 C (108.0 F) in 2026, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Fishtail Montana by year
YearHottest day (TXx)
199218.9 C (66.0 F)
199330.6 C (87.1 F)
199433.3 C (91.9 F)
199536.1 C (97.0 F)
199635.6 C (96.1 F)
199732.8 C (91.0 F)
199835.6 C (96.1 F)
199936.1 C (97.0 F)
200036.7 C (98.1 F)
200136.7 C (98.1 F)
200239.4 C (102.9 F)
200338.3 C (100.9 F)
200433.9 C (93.0 F)
200539.4 C (102.9 F)
200637.8 C (100.0 F)
200737.8 C (100.0 F)
200836.7 C (98.1 F)
200935.0 C (95.0 F)
201036.1 C (97.0 F)
201135.0 C (95.0 F)
201237.8 C (100.0 F)
201336.1 C (97.0 F)
201434.4 C (93.9 F)
201533.9 C (93.0 F)
201635.6 C (96.1 F)
201735.0 C (95.0 F)
201837.8 C (100.0 F)
201935.0 C (95.0 F)
202037.2 C (99.0 F)
202138.1 C (100.6 F)
202238.9 C (102.0 F)
202335.0 C (95.0 F)
202436.7 C (98.1 F)
202535.0 C (95.0 F)
202642.2 C (108.0 F)

Coldest night (TNn)

Coldest night (TNn) at Fishtail Montana by year The coldest night of the year at Fishtail Montana, 1992 to 2026. The record is -36.7 C (-34.1 F) in 2024, marked on the chart; the median year is -26.1 C (-15.0 F). -40-35-30-25-20200020102020Record: -36.7 C (-34.1 F) in 2024
The coldest night of the year at Fishtail Montana, 1992 to 2026. The record is -36.7 C (-34.1 F) in 2024, marked on the chart; the median year is -26.1 C (-15.0 F).
Coldest night (TNn) at Fishtail Montana by year
YearColdest night (TNn)
1992-27.2 C (-17.0 F)
1993-25.0 C (-13.0 F)
1994-27.2 C (-17.0 F)
1995-25.0 C (-13.0 F)
1996-26.1 C (-15.0 F)
1997-21.7 C (-7.1 F)
1998-28.3 C (-18.9 F)
1999-20.6 C (-5.1 F)
2000-26.1 C (-15.0 F)
2001-21.7 C (-7.1 F)
2002-23.3 C (-9.9 F)
2003-26.1 C (-15.0 F)
2004-26.1 C (-15.0 F)
2005-25.0 C (-13.0 F)
2006-28.9 C (-20.0 F)
2007-26.7 C (-16.1 F)
2008-30.0 C (-22.0 F)
2009-26.1 C (-15.0 F)
2010-27.8 C (-18.0 F)
2011-26.1 C (-15.0 F)
2012-23.3 C (-9.9 F)
2013-30.6 C (-23.1 F)
2014-30.6 C (-23.1 F)
2015-21.1 C (-6.0 F)
2016-27.2 C (-17.0 F)
2017-26.7 C (-16.1 F)
2018-25.6 C (-14.1 F)
2019-27.2 C (-17.0 F)
2020-22.2 C (-8.0 F)
2021-29.4 C (-20.9 F)
2022-33.9 C (-29.0 F)
2023-29.4 C (-20.9 F)
2024-36.7 C (-34.1 F)
2025-26.7 C (-16.1 F)
2026-20.6 C (-5.1 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

28 years with a frost

Across 28 years with a frost, the median last spring frost at Fishtail Montana falls on 13 May and the median first autumn frost on 3 October, which leaves a median of 142 days between them.

Fitted over all years, the growing season changes by +11.9 days per decade at this station.

Frost dates and growing season at Fishtail Montana
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost13 Mayn/a13 Mayn/a-7.0 days per decade
First autumn frost3 Octobern/a3 Octobern/a+4.8 days per decade
Growing days142 daysn/a142 daysn/a+11.9 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 Fishtail Montana standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Fishtail 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-14).