Built 2026-10-15 (15 October 2026)

Poplar Montana Weather Records (USR0000MPOP)

Record envelope, standing records and threshold days for Poplar Montana (USR0000MPOP), Montana, United States, with 32 years of record.

Key Facts for Poplar Montana

  • Poplar Montana (USR0000MPOP) is a weather station in Montana, United States at 48.13 latitude and -105.07 longitude, 739 m (2,423 ft) above sea level.
  • The station reports from 1992 to 2023, 32 years of record.
  • 1,464 records set at Poplar Montana still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Poplar Montana tied a daily record high minimum temperature of 11.7 C (53.1 F) on 20 September 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, 48.13 latitude, -105.07 longitude.
  • Elevation: 739 m (2,423 ft).
  • Period of record: 1992 to 2023, 32 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

29 days at or beyond a record
Daily record high and record low at Poplar Montana, with 2026 drawn through them The band shows the record high and record low for each calendar day at Poplar Montana. The lines show the 2026 daily maximum and minimum. 29 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 Poplar Montana. The lines show the 2026 daily maximum and minimum. 29 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Poplar Montana, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.1 C (61.0 F)-38.9 C (-38.0 F)5.0 C (41.0 F)-32.8 C (-27.0 F)
Feb18.3 C (64.9 F)-40.0 C (-40.0 F)12.8 C (55.0 F)-22.2 C (-8.0 F)
Mar28.3 C (82.9 F)-31.1 C (-24.0 F)25.0 C (77.0 F)-17.8 C (0.0 F)
Apr31.7 C (89.1 F)-17.2 C (1.0 F)31.7 C (89.1 F)-9.4 C (15.1 F)
May35.6 C (96.1 F)-6.7 C (19.9 F)35.6 C (96.1 F)-5.0 C (23.0 F)
Jun37.2 C (99.0 F)1.1 C (34.0 F)33.9 C (93.0 F)7.2 C (45.0 F)
Jul42.8 C (109.0 F)5.6 C (42.1 F)41.7 C (107.1 F)10.6 C (51.1 F)
Aug41.7 C (107.1 F)2.2 C (36.0 F)40.0 C (104.0 F)7.2 C (45.0 F)
Sep39.4 C (102.9 F)-8.3 C (17.1 F)33.3 C (91.9 F)2.8 C (37.0 F)
Oct33.9 C (93.0 F)-18.9 C (-2.0 F)28.9 C (84.0 F)1.7 C (35.1 F)
Nov25.0 C (77.0 F)-28.3 C (-18.9 F)n/an/a
Dec15.6 C (60.1 F)-35.0 C (-31.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Poplar Montana by the year they were set 1,464 records at Poplar Montana still stand. 1996 holds the most, with 80. 0204060801992: 311993: 411994: 361995: 501996: 801997: 501998: 401999: 412000: 532001: 362002: 712003: 532004: 502005: 542006: 392007: 382008: 372009: 372010: 282011: 202012: 342013: 282014: 392015: 382016: 342017: 412018: 382019: 402020: 492021: 592022: 252023: 372024: 382025: 392026: 40199219962000200420082012201620202024
1,464 records at Poplar Montana still stand. 1996 holds the most, with 80.
Standing records at Poplar Montana by the year they were set
Year setStanding records
199231
199341
199436
199550
199680
199750
199840
199941
200053
200136
200271
200353
200450
200554
200639
200738
200837
200937
201028
201120
201234
201328
201439
201538
201634
201741
201838
201940
202049
202159
202225
202337
202438
202539
202640

Period of Record Coverage

1992 to 2026
Days with data per year at Poplar Montana 35 years of record at Poplar Montana, 1992 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1992, 2022, 2026. 1992: 158 of 366 days1993: 355 of 365 days1994: 359 of 365 days1995: 361 of 365 days1996: 331 of 366 days1997: 361 of 365 days1998: 361 of 365 days1999: 363 of 365 days2000: 363 of 366 days2001: 364 of 365 days2002: 364 of 365 days2003: 363 of 365 days2004: 363 of 366 days2005: 360 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 362 of 365 days2010: 362 of 365 days2011: 361 of 365 days2012: 363 of 366 days2013: 363 of 365 days2014: 361 of 365 days2015: 362 of 365 days2016: 364 of 366 days2017: 363 of 365 days2018: 363 of 365 days2019: 365 of 365 days2020: 364 of 366 days2021: 364 of 365 days2022: 213 of 365 days2023: 362 of 365 days2024: 365 of 366 days2025: 364 of 365 days2026: 280 of 365 days1995200020052010201520202025
35 years of record at Poplar Montana, 1992 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1992, 2022, 2026.
Days with data per year at Poplar Montana
YearDays with dataShare of yearComplete
199215843%No
199335597%Yes
199435998%Yes
199536199%Yes
199633190%Yes
199736199%Yes
199836199%Yes
199936399%Yes
200036399%Yes
2001364100%Yes
2002364100%Yes
200336399%Yes
200436399%Yes
200536099%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
200936299%Yes
201036299%Yes
201136199%Yes
201236399%Yes
201336399%Yes
201436199%Yes
201536299%Yes
201636499%Yes
201736399%Yes
201836399%Yes
2019365100%Yes
202036499%Yes
2021364100%Yes
202221358%No
202336299%Yes
2024365100%Yes
2025364100%Yes
202628077%No

Latest Records

20
Latest records at Poplar Montana
DateStationRecordValueBeat old record byOld record stoodSignificance
20 September 2026Poplar Montana, USdaily high min (Tie, Provisional)11.7 C (53.1 F)tie7 years1 of 100 (Routine)
18 September 2026Poplar Montana, USdaily high min (Provisional)16.1 C (61.0 F)2.2 C (4.0 F)4 years9 of 100 (Routine)
7 September 2026Poplar Montana, USdaily high min (Provisional)15.6 C (60.1 F)0.6 C (1.1 F)16 years9 of 100 (Routine)
28 August 2026Poplar Montana, USdaily high min (Provisional)19.4 C (66.9 F)3.3 C (5.9 F)29 years20 of 100 (Routine)
7 August 2026Poplar Montana, USdaily low min (Tie)8.9 C (48.0 F)tie12 years1 of 100 (Routine)
4 August 2026Poplar Montana, USdaily low min7.2 C (45.0 F)0.6 C (1.1 F)16 years9 of 100 (Routine)
2 August 2026Poplar Montana, USdaily high min19.4 C (66.9 F)0.5 C (0.9 F)7 years6 of 100 (Routine)
1 August 2026Poplar Montana, USdaily high max40.0 C (104.0 F)1.7 C (3.1 F)17 years11 of 100 (Routine)
28 July 2026Poplar Montana, USdaily high max (Tie)36.7 C (98.1 F)tie32 years3 of 100 (Routine)
25 July 2026Poplar Montana, USdaily high max40.6 C (105.1 F)2.8 C (5.0 F)1 year8 of 100 (Routine)
13 July 2026Poplar Montana, USdaily high min20.0 C (68.0 F)1.1 C (2.0 F)20 years12 of 100 (Routine)
12 July 2026Poplar Montana, USdaily high max41.7 C (107.1 F)3.9 C (7.0 F)1 year11 of 100 (Routine)
12 July 2026Poplar Montana, USdaily high min20.6 C (69.1 F)1.2 C (2.2 F)1 year6 of 100 (Routine)
7 July 2026Poplar Montana, USdaily low max18.9 C (66.0 F)1.1 C (2.0 F)32 years14 of 100 (Routine)
5 July 2026Poplar Montana, USdaily high min (Tie)18.3 C (64.9 F)tie4 years1 of 100 (Routine)
6 June 2026Poplar Montana, USdaily high max33.9 C (93.0 F)1.7 C (3.1 F)3 years6 of 100 (Routine)
30 May 2026Poplar Montana, USdaily high min16.1 C (61.0 F)2.2 C (4.0 F)8 years10 of 100 (Routine)
29 May 2026Poplar Montana, USdaily high max32.8 C (91.0 F)1.7 C (3.1 F)23 years11 of 100 (Routine)
29 May 2026Poplar Montana, USdaily high min17.8 C (64.0 F)3.4 C (6.1 F)3 years11 of 100 (Routine)
28 May 2026Poplar Montana, USmonthly high min20.6 C (69.1 F)2.8 C (5.0 F)1 year19 of 100 (Routine)

Climate Trend

31 complete years, 1993 to 2025
Annual mean temperature at Poplar Montana as warming stripes, 1993 to 2025 One stripe for each of 31 complete years at Poplar Montana, 1993 to 2025. Blue stripes are years cooler than the station's own mean of 6.3 C (43.3 F); red stripes are warmer. The coolest year was 2019, at 4.5 C (40.0 F), and the warmest was 2016, at 7.7 C (45.9 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1993: 4.9 C, -1.4 C from the station mean1994: 5.9 C, -0.4 C from the station mean1995: 5.9 C, -0.4 C from the station mean1997: 6.3 C, 0.0 C from the station mean1998: 7.3 C, +1.0 C from the station mean1999: 7.3 C, +1.1 C from the station mean2000: 6.2 C, -0.1 C from the station mean2001: 7.1 C, +0.8 C from the station mean2002: 5.5 C, -0.8 C from the station mean2003: 6.0 C, -0.2 C from the station mean2004: 5.5 C, -0.7 C from the station mean2005: 6.8 C, +0.6 C from the station mean2006: 7.4 C, +1.2 C from the station mean2007: 7.0 C, +0.8 C from the station mean2008: 5.6 C, -0.7 C from the station mean2009: 4.7 C, -1.5 C from the station mean2010: 5.2 C, -1.0 C from the station mean2011: 5.4 C, -0.8 C from the station mean2012: 7.4 C, +1.1 C from the station mean2013: 4.9 C, -1.4 C from the station mean2014: 5.2 C, -1.1 C from the station mean2015: 7.4 C, +1.1 C from the station mean2016: 7.7 C, +1.4 C from the station mean2017: 6.7 C, +0.4 C from the station mean2018: 4.9 C, -1.3 C from the station mean2019: 4.5 C, -1.8 C from the station mean2020: 6.7 C, +0.4 C from the station mean2021: 7.4 C, +1.1 C from the station mean2023: 7.0 C, +0.8 C from the station mean2024: 7.5 C, +1.2 C from the station mean2025: 6.7 C, +0.5 C from the station mean1993200020052010201520202025
One stripe for each of 31 complete years at Poplar Montana, 1993 to 2025. Blue stripes are years cooler than the station's own mean of 6.3 C (43.3 F); red stripes are warmer. The coolest year was 2019, at 4.5 C (40.0 F), and the warmest was 2016, at 7.7 C (45.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Poplar Montana as warming stripes, 1993 to 2025
YearAnnual mean temperatureDifference from the station mean
19934.9 C-1.35 C
19945.9 C-0.38 C
19955.9 C-0.36 C
19976.3 C+0.01 C
19987.3 C+1.04 C
19997.3 C+1.09 C
20006.2 C-0.09 C
20017.1 C+0.80 C
20025.5 C-0.75 C
20036.0 C-0.23 C
20045.5 C-0.74 C
20056.8 C+0.58 C
20067.4 C+1.16 C
20077.0 C+0.78 C
20085.6 C-0.70 C
20094.7 C-1.51 C
20105.2 C-1.01 C
20115.4 C-0.81 C
20127.4 C+1.14 C
20134.9 C-1.37 C
20145.2 C-1.10 C
20157.4 C+1.13 C
20167.7 C+1.45 C
20176.7 C+0.41 C
20184.9 C-1.33 C
20194.5 C-1.80 C
20206.7 C+0.45 C
20217.4 C+1.15 C
20237.0 C+0.76 C
20247.5 C+1.23 C
20256.7 C+0.46 C

The fitted trend in annual mean temperature here over 1993 to 2025 is 0.2 C (-0.2 to 0.6) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.3 F (-0.4 to 1.0) 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 Poplar Montana
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (-0.2 to 0.6) per decade0.3 F (-0.4 to 1.0) per decade1993 to 202531Not clearly different from zero
Mean daily maximum0.2 C (-0.2 to 0.7) per decade0.4 F (-0.4 to 1.2) per decade1993 to 202531Not clearly different from zero
Mean daily minimum0.1 C (-0.2 to 0.5) per decade0.2 F (-0.4 to 0.8) per decade1993 to 202531Not 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

1992 to 2026
Yearly extremes at Poplar Montana: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.8 C (109.0 F)200738.3 C (100.9 F)35
Coldest night (TNn)-40.0 C (-40.0 F)2019-32.8 C (-27.0 F)35

Hottest day (TXx)

Hottest day (TXx) at Poplar Montana by year The hottest day of the year at Poplar Montana, 1992 to 2026. The record is 42.8 C (109.0 F) in 2007, marked on the chart; the median year is 38.3 C (100.9 F). 32.53537.54042.545200020102020Record: 42.8 C (109.0 F) in 2007
The hottest day of the year at Poplar Montana, 1992 to 2026. The record is 42.8 C (109.0 F) in 2007, marked on the chart; the median year is 38.3 C (100.9 F).
Hottest day (TXx) at Poplar Montana by year
YearHottest day (TXx)
199237.8 C (100.0 F)
199334.4 C (93.9 F)
199437.8 C (100.0 F)
199541.7 C (107.1 F)
199638.3 C (100.9 F)
199737.8 C (100.0 F)
199838.9 C (102.0 F)
199937.2 C (99.0 F)
200040.0 C (104.0 F)
200137.2 C (99.0 F)
200241.7 C (107.1 F)
200339.4 C (102.9 F)
200439.4 C (102.9 F)
200538.3 C (100.9 F)
200637.8 C (100.0 F)
200742.8 C (109.0 F)
200838.3 C (100.9 F)
200936.7 C (98.1 F)
201037.8 C (100.0 F)
201135.0 C (95.0 F)
201238.3 C (100.9 F)
201335.0 C (95.0 F)
201435.6 C (96.1 F)
201539.4 C (102.9 F)
201636.1 C (97.0 F)
201738.9 C (102.0 F)
201840.6 C (105.1 F)
201935.0 C (95.0 F)
202038.3 C (100.9 F)
202141.1 C (106.0 F)
202238.3 C (100.9 F)
202340.6 C (105.1 F)
202441.7 C (107.1 F)
202537.8 C (100.0 F)
202641.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at Poplar Montana by year The coldest night of the year at Poplar Montana, 1992 to 2026. The record is -40.0 C (-40.0 F) in 2019, marked on the chart; the median year is -32.8 C (-27.0 F). -40-35-30-25200020102020Record: -40.0 C (-40.0 F) in 2019
The coldest night of the year at Poplar Montana, 1992 to 2026. The record is -40.0 C (-40.0 F) in 2019, marked on the chart; the median year is -32.8 C (-27.0 F).
Coldest night (TNn) at Poplar Montana by year
YearColdest night (TNn)
1992-33.9 C (-29.0 F)
1993-32.2 C (-26.0 F)
1994-32.8 C (-27.0 F)
1995-28.3 C (-18.9 F)
1996-36.7 C (-34.1 F)
1997-35.6 C (-32.1 F)
1998-32.8 C (-27.0 F)
1999-27.8 C (-18.0 F)
2000-29.4 C (-20.9 F)
2001-26.7 C (-16.1 F)
2002-28.3 C (-18.9 F)
2003-31.1 C (-24.0 F)
2004-33.9 C (-29.0 F)
2005-33.9 C (-29.0 F)
2006-30.0 C (-22.0 F)
2007-28.3 C (-18.9 F)
2008-33.9 C (-29.0 F)
2009-34.4 C (-29.9 F)
2010-33.9 C (-29.0 F)
2011-35.6 C (-32.1 F)
2012-28.3 C (-18.9 F)
2013-34.4 C (-29.9 F)
2014-31.1 C (-24.0 F)
2015-27.8 C (-18.0 F)
2016-32.8 C (-27.0 F)
2017-34.4 C (-29.9 F)
2018-36.7 C (-34.1 F)
2019-40.0 C (-40.0 F)
2020-30.6 C (-23.1 F)
2021-33.9 C (-29.0 F)
2022-34.4 C (-29.9 F)
2023-30.6 C (-23.1 F)
2024-38.9 C (-38.0 F)
2025-39.4 C (-38.9 F)
2026-32.8 C (-27.0 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 Poplar Montana falls on 11 May and the median first autumn frost on 23 September, which leaves a median of 136 days between them.

Fitted over all years, the growing season changes by +4.8 days per decade at this station.

Frost dates and growing season at Poplar Montana
MeasureMedian, all yearsEarliest periodRecent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost11 Mayn/a12 Mayn/a-1.9 days per decade
First autumn frost23 Septembern/a26 Septembern/a+2.9 days per decade
Growing days136 daysn/a135 daysn/a+4.8 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 Poplar Montana standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Poplar 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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