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Built 2026-10-16 (16 October 2026)

Brimstone Res. - Milford 20WSW Weather Records (USR0000BRIM)

Record envelope, standing records and threshold days for Brimstone Res. - Milford 20WSW (USR0000BRIM), Utah, United States, with 37 years of record.

Key Facts for Brimstone Res. - Milford 20WSW

  • Brimstone Res. - Milford 20WSW (USR0000BRIM) is a weather station in Utah, United States at 38.31 latitude and -113.38 longitude, 1,713 m (5,620 ft) above sea level.
  • The station reports from 1987 to 2023, 37 years of record.
  • 1,464 records set at Brimstone Res. - Milford 20WSW still stand.
  • Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
  • Brimstone Res. - Milford 20WSW tied a daily record high minimum temperature of 12.2 C (54.0 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: Utah, United States, 38.31 latitude, -113.38 longitude.
  • Elevation: 1,713 m (5,620 ft).
  • Period of record: 1987 to 2023, 37 years.
  • Eligible elements: tmax, tmin.

Daily Record Envelope and 2026

32 days at or beyond a record
Daily record high and record low at Brimstone Res. - Milford 20WSW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Brimstone Res. - Milford 20WSW. The lines show the 2026 daily maximum and minimum. 32 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 Brimstone Res. - Milford 20WSW. The lines show the 2026 daily maximum and minimum. 32 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Brimstone Res. - Milford 20WSW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan18.9 C (66.0 F)-23.3 C (-9.9 F)14.4 C (57.9 F)-12.8 C (9.0 F)
Feb22.2 C (72.0 F)-24.4 C (-11.9 F)19.4 C (66.9 F)-11.1 C (12.0 F)
Mar30.6 C (87.1 F)-13.3 C (8.1 F)30.6 C (87.1 F)-3.9 C (25.0 F)
Apr30.0 C (86.0 F)-11.7 C (10.9 F)25.0 C (77.0 F)-7.2 C (19.0 F)
May36.7 C (98.1 F)-3.9 C (25.0 F)32.2 C (90.0 F)-2.2 C (28.0 F)
Jun39.4 C (102.9 F)0.0 C (32.0 F)36.7 C (98.1 F)4.4 C (39.9 F)
Jul41.7 C (107.1 F)4.4 C (39.9 F)38.3 C (100.9 F)13.3 C (55.9 F)
Aug38.9 C (102.0 F)7.2 C (45.0 F)38.9 C (102.0 F)10.0 C (50.0 F)
Sep37.2 C (99.0 F)-2.8 C (27.0 F)33.3 C (91.9 F)7.8 C (46.0 F)
Oct31.7 C (89.1 F)-14.4 C (6.1 F)30.0 C (86.0 F)10.0 C (50.0 F)
Nov23.9 C (75.0 F)-16.1 C (3.0 F)n/an/a
Dec20.0 C (68.0 F)-24.4 C (-11.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Brimstone Res. - Milford 20WSW by the year they were set 1,464 records at Brimstone Res. - Milford 20WSW still stand. 1989 holds the most, with 63. 0204060801987: 111988: 551989: 631990: 541991: 351992: 341993: 291994: 461995: 381996: 551997: 281998: 331999: 352000: 462001: 342002: 472003: 442004: 352005: 242006: 252007: 302008: 282009: 232010: 282011: 432012: 342013: 542014: 252015: 362016: 392017: 312018: 292019: 322020: 362021: 412022: 402023: 282024: 312025: 482026: 371987199119951999200320072011201520192023
1,464 records at Brimstone Res. - Milford 20WSW still stand. 1989 holds the most, with 63.
Standing records at Brimstone Res. - Milford 20WSW by the year they were set
Year setStanding records
198711
198855
198963
199054
199135
199234
199329
199446
199538
199655
199728
199833
199935
200046
200134
200247
200344
200435
200524
200625
200730
200828
200923
201028
201143
201234
201354
201425
201536
201639
201731
201829
201932
202036
202141
202240
202328
202431
202548
202637

Period of Record Coverage

1987 to 2026
Days with data per year at Brimstone Res. - Milford 20WSW 40 years of record at Brimstone Res. - Milford 20WSW, 1987 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1987, 2026. 1987: 120 of 365 days1988: 362 of 366 days1989: 365 of 365 days1990: 362 of 365 days1991: 364 of 365 days1992: 364 of 366 days1993: 352 of 365 days1994: 363 of 365 days1995: 363 of 365 days1996: 365 of 366 days1997: 363 of 365 days1998: 365 of 365 days1999: 364 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 364 of 365 days2004: 364 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 360 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 363 of 365 days2012: 365 of 366 days2013: 361 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 363 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 365 of 365 days2020: 364 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 364 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 284 of 365 days19901995200020052010201520202025
40 years of record at Brimstone Res. - Milford 20WSW, 1987 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1987, 2026.
Days with data per year at Brimstone Res. - Milford 20WSW
YearDays with dataShare of yearComplete
198712033%No
198836299%Yes
1989365100%Yes
199036299%Yes
1991364100%Yes
199236499%Yes
199335296%Yes
199436399%Yes
199536399%Yes
1996365100%Yes
199736399%Yes
1998365100%Yes
1999364100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003364100%Yes
200436499%Yes
2005365100%Yes
2006364100%Yes
200736099%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
201136399%Yes
2012365100%Yes
201336199%Yes
2014365100%Yes
2015365100%Yes
201636399%Yes
2017365100%Yes
2018364100%Yes
2019365100%Yes
202036499%Yes
2021365100%Yes
2022364100%Yes
2023364100%Yes
2024366100%Yes
2025365100%Yes
202628478%No

Latest Records

20
Latest records at Brimstone Res. - Milford 20WSW
DateStationRecordValueBeat old record byOld record stoodSignificance
9 October 2026Brimstone Res. - Milford 20WSW, USdaily high min (Tie, Provisional)12.2 C (54.0 F)tie23 years2 of 100 (Routine)
8 October 2026Brimstone Res. - Milford 20WSW, USdaily high min (Tie, Provisional)11.7 C (53.1 F)tie5 years1 of 100 (Routine)
6 October 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)14.4 C (57.9 F)1.1 C (2.0 F)1 year6 of 100 (Routine)
5 October 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)15.0 C (59.0 F)1.1 C (2.0 F)1 year6 of 100 (Routine)
5 October 2026Brimstone Res. - Milford 20WSW, USdaily high max (Tie, Provisional)29.4 C (84.9 F)tie5 years1 of 100 (Routine)
3 October 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)15.0 C (59.0 F)0.6 C (1.1 F)37 years16 of 100 (Routine)
17 September 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)17.2 C (63.0 F)0.5 C (0.9 F)25 years12 of 100 (Routine)
16 September 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)18.3 C (64.9 F)1.6 C (2.9 F)36 years18 of 100 (Routine)
13 September 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)20.0 C (68.0 F)0.6 C (1.1 F)16 years10 of 100 (Routine)
12 September 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)19.4 C (66.9 F)2.2 C (4.0 F)36 years19 of 100 (Routine)
28 August 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)21.1 C (70.0 F)2.8 C (5.0 F)4 years16 of 100 (Routine)
21 August 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)11 years11 of 100 (Routine)
20 August 2026Brimstone Res. - Milford 20WSW, USdaily high max (Tie, Provisional)36.7 C (98.1 F)tie0 years1 of 100 (Routine)
20 August 2026Brimstone Res. - Milford 20WSW, USdaily high min (Tie, Provisional)19.4 C (66.9 F)tie8 years1 of 100 (Routine)
19 August 2026Brimstone Res. - Milford 20WSW, USdaily high min (Provisional)19.4 C (66.9 F)0.5 C (0.9 F)24 years13 of 100 (Routine)
15 August 2026Brimstone Res. - Milford 20WSW, USdaily low min10.0 C (50.0 F)0.6 C (1.1 F)32 years15 of 100 (Routine)
14 August 2026Brimstone Res. - Milford 20WSW, USdaily low max21.1 C (70.0 F)5.6 C (10.1 F)20 years28 of 100 (Routine)
13 August 2026Brimstone Res. - Milford 20WSW, USdaily low max (Tie)26.7 C (80.1 F)tie12 years1 of 100 (Routine)
12 August 2026Brimstone Res. - Milford 20WSW, USdaily low max26.1 C (79.0 F)0.6 C (1.1 F)28 years13 of 100 (Routine)
9 August 2026Brimstone Res. - Milford 20WSW, USdaily high max36.1 C (97.0 F)0.5 C (0.9 F)36 years15 of 100 (Routine)

Climate Trend

38 complete years, 1988 to 2025
Annual mean temperature at Brimstone Res. - Milford 20WSW as warming stripes, 1988 to 2025 One stripe for each of 38 complete years at Brimstone Res. - Milford 20WSW, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 11.1 C (52.0 F); red stripes are warmer. The coolest year was 2013, at 9.7 C (49.5 F), and the warmest was 2025, at 12.6 C (54.7 F). The strongest colour marks a difference of 1.5 C (2.7 F). 1988: 10.2 C, -0.9 C from the station mean1989: 10.6 C, -0.6 C from the station mean1990: 10.8 C, -0.3 C from the station mean1991: 10.5 C, -0.6 C from the station mean1992: 11.1 C, -0.1 C from the station mean1993: 10.0 C, -1.2 C from the station mean1994: 11.3 C, +0.1 C from the station mean1995: 11.2 C, +0.1 C from the station mean1996: 11.6 C, +0.4 C from the station mean1997: 10.7 C, -0.4 C from the station mean1998: 10.3 C, -0.9 C from the station mean1999: 11.3 C, +0.1 C from the station mean2000: 11.5 C, +0.4 C from the station mean2001: 11.4 C, +0.3 C from the station mean2002: 11.2 C, 0.0 C from the station mean2003: 12.1 C, +1.0 C from the station mean2004: 10.7 C, -0.4 C from the station mean2005: 11.1 C, -0.1 C from the station mean2006: 10.8 C, -0.3 C from the station mean2007: 11.4 C, +0.3 C from the station mean2008: 10.8 C, -0.4 C from the station mean2009: 10.8 C, -0.3 C from the station mean2010: 10.6 C, -0.6 C from the station mean2011: 10.1 C, -1.1 C from the station mean2012: 12.0 C, +0.9 C from the station mean2013: 9.7 C, -1.4 C from the station mean2014: 11.9 C, +0.8 C from the station mean2015: 12.0 C, +0.9 C from the station mean2016: 11.7 C, +0.6 C from the station mean2017: 11.9 C, +0.8 C from the station mean2018: 11.7 C, +0.6 C from the station mean2019: 10.2 C, -0.9 C from the station mean2020: 11.7 C, +0.6 C from the station mean2021: 11.9 C, +0.8 C from the station mean2022: 11.0 C, -0.2 C from the station mean2023: 10.4 C, -0.7 C from the station mean2024: 12.3 C, +1.2 C from the station mean2025: 12.6 C, +1.5 C from the station mean19881995200020052010201520202025
One stripe for each of 38 complete years at Brimstone Res. - Milford 20WSW, 1988 to 2025. Blue stripes are years cooler than the station's own mean of 11.1 C (52.0 F); red stripes are warmer. The coolest year was 2013, at 9.7 C (49.5 F), and the warmest was 2025, at 12.6 C (54.7 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Brimstone Res. - Milford 20WSW as warming stripes, 1988 to 2025
YearAnnual mean temperatureDifference from the station mean
198810.2 C-0.93 C
198910.6 C-0.56 C
199010.8 C-0.33 C
199110.5 C-0.60 C
199211.1 C-0.06 C
199310.0 C-1.18 C
199411.3 C+0.14 C
199511.2 C+0.11 C
199611.6 C+0.44 C
199710.7 C-0.45 C
199810.3 C-0.87 C
199911.3 C+0.12 C
200011.5 C+0.38 C
200111.4 C+0.29 C
200211.2 C+0.04 C
200312.1 C+0.97 C
200410.7 C-0.39 C
200511.1 C-0.08 C
200610.8 C-0.32 C
200711.4 C+0.28 C
200810.8 C-0.37 C
200910.8 C-0.35 C
201010.6 C-0.56 C
201110.1 C-1.08 C
201212.0 C+0.86 C
20139.7 C-1.40 C
201411.9 C+0.75 C
201512.0 C+0.85 C
201611.7 C+0.56 C
201711.9 C+0.80 C
201811.7 C+0.61 C
201910.2 C-0.89 C
202011.7 C+0.60 C
202111.9 C+0.77 C
202211.0 C-0.16 C
202310.4 C-0.69 C
202412.3 C+1.15 C
202512.6 C+1.47 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1988 to 2025. In Fahrenheit: 0.5 F (0.1 to 0.8) per decade. The slope is a straight line fitted to 38 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Brimstone Res. - Milford 20WSW
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.3 C (0.1 to 0.5) per decade0.5 F (0.1 to 0.8) per decade1988 to 202538Rise
Mean daily maximum0.3 C (0.1 to 0.6) per decade0.6 F (0.2 to 1.0) per decade1988 to 202538Rise
Mean daily minimum0.18 C (0.00 to 0.36) per decade0.32 F (-0.01 to 0.65) per decade1988 to 202538Not 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

1987 to 2026
Yearly extremes at Brimstone Res. - Milford 20WSW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)200237.8 C (100.0 F)40
Coldest night (TNn)-24.4 C (-11.9 F)1989-17.2 C (1.0 F)40

Hottest day (TXx)

Hottest day (TXx) at Brimstone Res. - Milford 20WSW by year The hottest day of the year at Brimstone Res. - Milford 20WSW, 1987 to 2026. The record is 41.7 C (107.1 F) in 2002, marked on the chart; the median year is 37.8 C (100.0 F). 303540451990200020102020Record: 41.7 C (107.1 F) in 2002
The hottest day of the year at Brimstone Res. - Milford 20WSW, 1987 to 2026. The record is 41.7 C (107.1 F) in 2002, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Brimstone Res. - Milford 20WSW by year
YearHottest day (TXx)
198730.6 C (87.1 F)
198836.7 C (98.1 F)
198938.3 C (100.9 F)
199036.7 C (98.1 F)
199136.1 C (97.0 F)
199236.7 C (98.1 F)
199335.0 C (95.0 F)
199437.2 C (99.0 F)
199537.2 C (99.0 F)
199637.2 C (99.0 F)
199736.1 C (97.0 F)
199839.4 C (102.9 F)
199937.8 C (100.0 F)
200038.9 C (102.0 F)
200137.8 C (100.0 F)
200241.7 C (107.1 F)
200339.4 C (102.9 F)
200436.1 C (97.0 F)
200539.4 C (102.9 F)
200639.4 C (102.9 F)
200738.9 C (102.0 F)
200837.2 C (99.0 F)
200940.0 C (104.0 F)
201037.8 C (100.0 F)
201136.7 C (98.1 F)
201237.2 C (99.0 F)
201339.4 C (102.9 F)
201436.1 C (97.0 F)
201538.3 C (100.9 F)
201638.9 C (102.0 F)
201738.3 C (100.9 F)
201837.2 C (99.0 F)
201936.1 C (97.0 F)
202038.3 C (100.9 F)
202139.5 C (103.1 F)
202237.8 C (100.0 F)
202338.9 C (102.0 F)
202440.0 C (104.0 F)
202537.2 C (99.0 F)
202638.9 C (102.0 F)

Coldest night (TNn)

Coldest night (TNn) at Brimstone Res. - Milford 20WSW by year The coldest night of the year at Brimstone Res. - Milford 20WSW, 1987 to 2026. The record is -24.4 C (-11.9 F) in 1989, marked on the chart; the median year is -17.2 C (1.0 F). -25-20-15-101990200020102020Record: -24.4 C (-11.9 F) in 1989
The coldest night of the year at Brimstone Res. - Milford 20WSW, 1987 to 2026. The record is -24.4 C (-11.9 F) in 1989, marked on the chart; the median year is -17.2 C (1.0 F).
Coldest night (TNn) at Brimstone Res. - Milford 20WSW by year
YearColdest night (TNn)
1987-20.0 C (-4.0 F)
1988-22.2 C (-8.0 F)
1989-24.4 C (-11.9 F)
1990-24.4 C (-11.9 F)
1991-15.0 C (5.0 F)
1992-16.7 C (1.9 F)
1993-17.8 C (0.0 F)
1994-16.1 C (3.0 F)
1995-15.0 C (5.0 F)
1996-16.7 C (1.9 F)
1997-17.8 C (0.0 F)
1998-22.2 C (-8.0 F)
1999-13.3 C (8.1 F)
2000-13.9 C (7.0 F)
2001-18.3 C (-0.9 F)
2002-17.8 C (0.0 F)
2003-16.1 C (3.0 F)
2004-18.3 C (-0.9 F)
2005-14.4 C (6.1 F)
2006-15.6 C (3.9 F)
2007-23.3 C (-9.9 F)
2008-16.7 C (1.9 F)
2009-18.9 C (-2.0 F)
2010-18.9 C (-2.0 F)
2011-18.9 C (-2.0 F)
2012-17.2 C (1.0 F)
2013-22.2 C (-8.0 F)
2014-16.1 C (3.0 F)
2015-14.4 C (6.1 F)
2016-16.7 C (1.9 F)
2017-20.0 C (-4.0 F)
2018-17.2 C (1.0 F)
2019-17.8 C (0.0 F)
2020-15.4 C (4.3 F)
2021-13.9 C (7.0 F)
2022-17.8 C (0.0 F)
2023-18.9 C (-2.0 F)
2024-14.4 C (6.1 F)
2025-14.4 C (6.1 F)
2026-12.8 C (9.0 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

38 years with a frost

Across 38 years with a frost, the median last spring frost at Brimstone Res. - Milford 20WSW falls on 13 May and the median first autumn frost on 12 October, which leaves a median of 151 days between them.

Fitted over all years, the growing season changes by +3.1 days per decade at this station.

Frost dates and growing season at Brimstone Res. - Milford 20WSW
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost13 Mayn/a13 Mayn/a-2.1 days per decade
First autumn frost12 Octobern/a11 Octobern/a+0.9 days per decade
Growing days151 daysn/a149 daysn/a+3.1 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 Brimstone Res. - Milford 20WSW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Brimstone Res. - Milford 20WSW 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).