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Pryor Mountain Montana Weather Records (USR0000MPRY)

Record envelope, standing records and threshold days for Pryor Mountain Montana (USR0000MPRY), Montana, United States, with 33 years of record.

Key Facts for Pryor Mountain Montana

  • Pryor Mountain Montana (USR0000MPRY) is a weather station in Montana, United States at 45.34 latitude and -108.49 longitude, 1,886 m (6,186 ft) above sea level.
  • The station reports from 1991 to 2023, 33 years of record.
  • 1,464 records set at Pryor Mountain Montana still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Pryor Mountain Montana tied a daily record high minimum temperature of 15.0 C (59.0 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, 45.34 latitude, -108.49 longitude.
  • Elevation: 1,886 m (6,186 ft).
  • Period of record: 1991 to 2023, 33 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

17 days at or beyond a record
Daily record high and record low at Pryor Mountain Montana, with 2026 drawn through them The band shows the record high and record low for each calendar day at Pryor Mountain Montana. The lines show the 2026 daily maximum and minimum. 17 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 Pryor Mountain Montana. The lines show the 2026 daily maximum and minimum. 17 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Pryor Mountain Montana, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.2 C (63.0 F)-35.0 C (-31.0 F)11.1 C (52.0 F)-21.7 C (-7.1 F)
Feb17.2 C (63.0 F)-32.2 C (-26.0 F)15.0 C (59.0 F)-21.1 C (-6.0 F)
Mar21.7 C (71.1 F)-28.3 C (-18.9 F)21.7 C (71.1 F)-17.8 C (0.0 F)
Apr25.6 C (78.1 F)-19.4 C (-2.9 F)23.3 C (73.9 F)-9.4 C (15.1 F)
May29.4 C (84.9 F)-8.3 C (17.1 F)27.8 C (82.0 F)-5.0 C (23.0 F)
Jun35.6 C (96.1 F)-2.2 C (28.0 F)25.6 C (78.1 F)1.1 C (34.0 F)
Jul40.0 C (104.0 F)2.2 C (36.0 F)35.0 C (95.0 F)9.4 C (48.9 F)
Aug38.3 C (100.9 F)-1.7 C (28.9 F)33.3 C (91.9 F)6.1 C (43.0 F)
Sep34.4 C (93.9 F)-7.8 C (18.0 F)27.2 C (81.0 F)2.8 C (37.0 F)
Oct28.3 C (82.9 F)-21.1 C (-6.0 F)23.9 C (75.0 F)-1.1 C (30.0 F)
Nov21.7 C (71.1 F)-27.2 C (-17.0 F)n/an/a
Dec15.6 C (60.1 F)-33.9 C (-29.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Pryor Mountain Montana by the year they were set 1,464 records at Pryor Mountain Montana still stand. 1996 holds the most, with 91. 02550751001991: 291992: 901993: 571994: 491995: 441996: 911997: 461998: 501999: 562000: 532001: 722002: 522003: 402004: 302005: 212006: 302007: 292008: 302009: 492010: 302011: 252012: 292013: 292014: 452015: 202016: 282017: 342018: 282019: 362020: 492021: 432022: 302023: 252024: 372025: 282026: 30199119951999200320072011201520192023
1,464 records at Pryor Mountain Montana still stand. 1996 holds the most, with 91.
Standing records at Pryor Mountain Montana by the year they were set
Year setStanding records
199129
199290
199357
199449
199544
199691
199746
199850
199956
200053
200172
200252
200340
200430
200521
200630
200729
200830
200949
201030
201125
201229
201329
201445
201520
201628
201734
201828
201936
202049
202143
202230
202325
202437
202528
202630

All-Time Record Progression

3 new records
When Pryor Mountain Montana set new all-time records 3 all-time records were set at Pryor Mountain Montana between 12 January 2024 and 13 January 2024. Each dot is a new record. Record low maximum temperatureRecord low minimum temperature12 January 2024: Record low maximum temperature -25.6 C (-14.1 F)12 January 2024: Record low minimum temperature -34.4 C (-29.9 F)13 January 2024: Record low minimum temperature -35.0 C (-31.0 F)2025
3 all-time records were set at Pryor Mountain Montana between 12 January 2024 and 13 January 2024. Each dot is a new record.
When Pryor Mountain Montana set new all-time records
DateKindDetail
2024-01-12Record low maximum temperatureRecord low maximum temperature -25.6 C (-14.1 F)
2024-01-12Record low minimum temperatureRecord low minimum temperature -34.4 C (-29.9 F)
2024-01-13Record low minimum temperatureRecord low minimum temperature -35.0 C (-31.0 F)

Period of Record Coverage

1991 to 2026
Days with data per year at Pryor Mountain Montana 36 years of record at Pryor Mountain Montana, 1991 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1991, 2004, 2005, 2008, 2022, 2026. 1991: 141 of 365 days1992: 355 of 366 days1993: 341 of 365 days1994: 351 of 365 days1995: 358 of 365 days1996: 361 of 366 days1997: 357 of 365 days1998: 359 of 365 days1999: 360 of 365 days2000: 363 of 366 days2001: 363 of 365 days2002: 361 of 365 days2003: 350 of 365 days2004: 329 of 366 days2005: 170 of 365 days2006: 358 of 365 days2007: 359 of 365 days2008: 323 of 366 days2009: 358 of 365 days2010: 362 of 365 days2011: 361 of 365 days2012: 360 of 366 days2013: 359 of 365 days2014: 361 of 365 days2015: 361 of 365 days2016: 362 of 366 days2017: 357 of 365 days2018: 358 of 365 days2019: 362 of 365 days2020: 363 of 366 days2021: 360 of 365 days2022: 267 of 365 days2023: 362 of 365 days2024: 360 of 366 days2025: 362 of 365 days2026: 281 of 365 days1995200020052010201520202025
36 years of record at Pryor Mountain Montana, 1991 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1991, 2004, 2005, 2008, 2022, 2026.
Days with data per year at Pryor Mountain Montana
YearDays with dataShare of yearComplete
199114139%No
199235597%Yes
199334193%Yes
199435196%Yes
199535898%Yes
199636199%Yes
199735798%Yes
199835998%Yes
199936099%Yes
200036399%Yes
200136399%Yes
200236199%Yes
200335096%Yes
200432990%No
200517047%No
200635898%Yes
200735998%Yes
200832388%No
200935898%Yes
201036299%Yes
201136199%Yes
201236098%Yes
201335998%Yes
201436199%Yes
201536199%Yes
201636299%Yes
201735798%Yes
201835898%Yes
201936299%Yes
202036399%Yes
202136099%Yes
202226773%No
202336299%Yes
202436098%Yes
202536299%Yes
202628177%No

Latest Records

20
Latest records at Pryor Mountain Montana
DateStationRecordValueBeat old record byOld record stoodSignificance
9 October 2026Pryor Mountain Montana, USdaily high min (Tie, Provisional)15.0 C (59.0 F)tie1 year0 of 100 (Routine)
6 October 2026Pryor Mountain Montana, USdaily high min (Tie, Provisional)13.9 C (57.0 F)tie5 years1 of 100 (Routine)
5 October 2026Pryor Mountain Montana, USdaily high min (Provisional)17.2 C (63.0 F)2.2 C (4.0 F)32 years15 of 100 (Routine)
21 August 2026Pryor Mountain Montana, USdaily high min (Tie, Provisional)20.6 C (69.1 F)tie31 years3 of 100 (Routine)
4 August 2026Pryor Mountain Montana, USdaily low min6.1 C (43.0 F)0.6 C (1.1 F)13 years8 of 100 (Routine)
4 August 2026Pryor Mountain Montana, USdaily low max (Tie)18.9 C (66.0 F)tie17 years2 of 100 (Routine)
3 August 2026Pryor Mountain Montana, USdaily low min (Tie)6.7 C (44.1 F)tie32 years3 of 100 (Routine)
1 August 2026Pryor Mountain Montana, USdaily high min22.2 C (72.0 F)0.5 C (0.9 F)25 years11 of 100 (Routine)
25 July 2026Pryor Mountain Montana, USdaily high max32.2 C (90.0 F)1.6 C (2.9 F)15 years10 of 100 (Routine)
11 July 2026Pryor Mountain Montana, USdaily high min20.0 C (68.0 F)0.6 C (1.1 F)1 year4 of 100 (Routine)
10 July 2026Pryor Mountain Montana, USdaily high min (Tie)18.9 C (66.0 F)tie1 year0 of 100 (Routine)
29 May 2026Pryor Mountain Montana, USdaily high min16.7 C (62.1 F)1.7 C (3.1 F)23 years12 of 100 (Routine)
28 May 2026Pryor Mountain Montana, USdaily high min16.1 C (61.0 F)2.8 C (5.0 F)23 years14 of 100 (Routine)
27 May 2026Pryor Mountain Montana, USdaily high min15.6 C (60.1 F)3.4 C (6.1 F)4 years10 of 100 (Routine)
26 May 2026Pryor Mountain Montana, USdaily high min16.1 C (61.0 F)1.7 C (3.1 F)28 years14 of 100 (Routine)
25 May 2026Pryor Mountain Montana, USdaily high min (Tie)13.9 C (57.0 F)tie24 years2 of 100 (Routine)
17 May 2026Pryor Mountain Montana, USdaily low min-3.9 C (25.0 F)1.7 C (3.1 F)11 years9 of 100 (Routine)
25 April 2026Pryor Mountain Montana, USdaily low min-9.4 C (15.1 F)2.7 C (4.9 F)32 years16 of 100 (Routine)
25 April 2026Pryor Mountain Montana, USdaily low max0.0 C (32.0 F)1.7 C (3.1 F)16 years9 of 100 (Routine)
24 April 2026Pryor Mountain Montana, USdaily low min-8.9 C (16.0 F)1.1 C (2.0 F)24 years11 of 100 (Routine)

Climate Trend

30 complete years, 1992 to 2025
Annual mean temperature at Pryor Mountain Montana as warming stripes, 1992 to 2025 One stripe for each of 30 complete years at Pryor Mountain Montana, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 6.5 C (43.8 F); red stripes are warmer. The coolest year was 2019, at 4.3 C (39.7 F), and the warmest was 2001, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1992: 7.7 C, +1.2 C from the station mean1993: 5.9 C, -0.6 C from the station mean1994: 7.9 C, +1.4 C from the station mean1995: 6.9 C, +0.3 C from the station mean1996: 6.3 C, -0.2 C from the station mean1997: 7.0 C, +0.4 C from the station mean1998: 8.1 C, +1.5 C from the station mean1999: 8.6 C, +2.0 C from the station mean2000: 7.9 C, +1.3 C from the station mean2001: 8.8 C, +2.2 C from the station mean2002: 6.3 C, -0.3 C from the station mean2003: 6.8 C, +0.3 C from the station mean2006: 6.4 C, -0.2 C from the station mean2007: 6.1 C, -0.4 C from the station mean2009: 5.0 C, -1.6 C from the station mean2010: 5.7 C, -0.9 C from the station mean2011: 5.2 C, -1.3 C from the station mean2012: 7.1 C, +0.6 C from the station mean2013: 5.6 C, -0.9 C from the station mean2014: 5.0 C, -1.6 C from the station mean2015: 6.8 C, +0.3 C from the station mean2016: 6.7 C, +0.2 C from the station mean2017: 6.1 C, -0.5 C from the station mean2018: 5.3 C, -1.2 C from the station mean2019: 4.3 C, -2.3 C from the station mean2020: 6.5 C, 0.0 C from the station mean2021: 6.4 C, -0.1 C from the station mean2023: 6.1 C, -0.4 C from the station mean2024: 6.9 C, +0.4 C from the station mean2025: 6.9 C, +0.3 C from the station mean19921995200020052010201520202025
One stripe for each of 30 complete years at Pryor Mountain Montana, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 6.5 C (43.8 F); red stripes are warmer. The coolest year was 2019, at 4.3 C (39.7 F), and the warmest was 2001, at 8.8 C (47.8 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Pryor Mountain Montana as warming stripes, 1992 to 2025
YearAnnual mean temperatureDifference from the station mean
19927.7 C+1.20 C
19935.9 C-0.62 C
19947.9 C+1.40 C
19956.9 C+0.33 C
19966.3 C-0.22 C
19977.0 C+0.44 C
19988.1 C+1.52 C
19998.6 C+2.02 C
20007.9 C+1.34 C
20018.8 C+2.24 C
20026.3 C-0.29 C
20036.8 C+0.25 C
20066.4 C-0.17 C
20076.1 C-0.42 C
20095.0 C-1.58 C
20105.7 C-0.88 C
20115.2 C-1.31 C
20127.1 C+0.55 C
20135.6 C-0.92 C
20145.0 C-1.56 C
20156.8 C+0.27 C
20166.7 C+0.16 C
20176.1 C-0.46 C
20185.3 C-1.20 C
20194.3 C-2.27 C
20206.5 C-0.02 C
20216.4 C-0.13 C
20236.1 C-0.42 C
20246.9 C+0.37 C
20256.9 C+0.31 C

The annual mean temperature here has fallen by 0.5 C (0.1 to 0.8) per decade over 1992 to 2025. In Fahrenheit: 0.9 F (0.2 to 1.5) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pryor Mountain Montana
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.5 C (-0.8 to -0.1) per decade-0.9 F (-1.5 to -0.2) per decade1992 to 202530Fall
Mean daily maximum-0.7 C (-1.2 to -0.3) per decade-1.3 F (-2.1 to -0.5) per decade1992 to 202530Fall
Mean daily minimum-0.2 C (-0.6 to 0.1) per decade-0.4 F (-1.0 to 0.1) per decade1992 to 202530Not 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

1991 to 2026
Yearly extremes at Pryor Mountain Montana: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)200232.2 C (90.0 F)36
Coldest night (TNn)-35.0 C (-31.0 F)2024-27.2 C (-17.0 F)36

Hottest day (TXx)

Hottest day (TXx) at Pryor Mountain Montana by year The hottest day of the year at Pryor Mountain Montana, 1991 to 2026. The record is 40.0 C (104.0 F) in 2002, marked on the chart; the median year is 32.2 C (90.0 F). 25303540200020102020Record: 40.0 C (104.0 F) in 2002
The hottest day of the year at Pryor Mountain Montana, 1991 to 2026. The record is 40.0 C (104.0 F) in 2002, marked on the chart; the median year is 32.2 C (90.0 F).
Hottest day (TXx) at Pryor Mountain Montana by year
YearHottest day (TXx)
199133.3 C (91.9 F)
199232.2 C (90.0 F)
199329.4 C (84.9 F)
199433.3 C (91.9 F)
199534.4 C (93.9 F)
199635.0 C (95.0 F)
199731.7 C (89.1 F)
199834.4 C (93.9 F)
199936.1 C (97.0 F)
200036.7 C (98.1 F)
200138.3 C (100.9 F)
200240.0 C (104.0 F)
200333.9 C (93.0 F)
200431.1 C (88.0 F)
200531.1 C (88.0 F)
200633.3 C (91.9 F)
200732.2 C (90.0 F)
200831.7 C (89.1 F)
200928.3 C (82.9 F)
201030.6 C (87.1 F)
201131.1 C (88.0 F)
201231.7 C (89.1 F)
201331.7 C (89.1 F)
201429.4 C (84.9 F)
201530.6 C (87.1 F)
201631.1 C (88.0 F)
201731.1 C (88.0 F)
201832.8 C (91.0 F)
201929.4 C (84.9 F)
202033.9 C (93.0 F)
202134.4 C (93.9 F)
202228.9 C (84.0 F)
202331.7 C (89.1 F)
202433.3 C (91.9 F)
202532.2 C (90.0 F)
202635.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Pryor Mountain Montana by year The coldest night of the year at Pryor Mountain Montana, 1991 to 2026. The record is -35.0 C (-31.0 F) in 2024, marked on the chart; the median year is -27.2 C (-17.0 F). -35-30-25-20200020102020Record: -35.0 C (-31.0 F) in 2024
The coldest night of the year at Pryor Mountain Montana, 1991 to 2026. The record is -35.0 C (-31.0 F) in 2024, marked on the chart; the median year is -27.2 C (-17.0 F).
Coldest night (TNn) at Pryor Mountain Montana by year
YearColdest night (TNn)
1991-21.1 C (-6.0 F)
1992-29.4 C (-20.9 F)
1993-26.7 C (-16.1 F)
1994-29.4 C (-20.9 F)
1995-27.2 C (-17.0 F)
1996-31.1 C (-24.0 F)
1997-31.7 C (-25.1 F)
1998-31.1 C (-24.0 F)
1999-20.0 C (-4.0 F)
2000-25.0 C (-13.0 F)
2001-21.1 C (-6.0 F)
2002-23.3 C (-9.9 F)
2003-25.6 C (-14.1 F)
2004-29.4 C (-20.9 F)
2005-23.3 C (-9.9 F)
2006-32.2 C (-26.0 F)
2007-27.2 C (-17.0 F)
2008-31.7 C (-25.1 F)
2009-27.8 C (-18.0 F)
2010-27.2 C (-17.0 F)
2011-28.3 C (-18.9 F)
2012-21.7 C (-7.1 F)
2013-28.9 C (-20.0 F)
2014-31.1 C (-24.0 F)
2015-21.1 C (-6.0 F)
2016-27.2 C (-17.0 F)
2017-24.4 C (-11.9 F)
2018-26.1 C (-15.0 F)
2019-27.8 C (-18.0 F)
2020-20.0 C (-4.0 F)
2021-30.0 C (-22.0 F)
2022-33.9 C (-29.0 F)
2023-29.4 C (-20.9 F)
2024-35.0 C (-31.0 F)
2025-25.6 C (-14.1 F)
2026-21.7 C (-7.1 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

30 years with a frost

Across 30 years with a frost, the median last spring frost at Pryor Mountain Montana falls on 24 May and the median first autumn frost on 21 September, which leaves a median of 120 days between them.

Fitted over all years, the growing season changes by +1.7 days per decade at this station.

Frost dates and growing season at Pryor Mountain Montana
MeasureMedian, all yearsEarliest periodRecent period (1992 to 2025)Recent against earliestFitted trend
Last spring frost24 Mayn/a24 Mayn/a+2.9 days per decade
First autumn frost21 Septembern/a21 Septembern/a+4.6 days per decade
Growing days120 daysn/a120 daysn/a+1.7 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.

Download the Data

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