Built 2026-10-15 (15 October 2026)

Brown Duck Weather Records (USS0010J30S)

Record envelope, standing records and threshold days for Brown Duck (USS0010J30S), Utah, United States, with 49 years of record.

Key Facts for Brown Duck

  • Brown Duck (USS0010J30S) is a weather station in Utah, United States at 40.58 latitude and -110.59 longitude, 3,231 m (10,600 ft) above sea level.
  • The station reports from 1978 to 2026, 49 years of record.
  • 1,464 records set at Brown Duck still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Brown Duck set a daily record high minimum temperature of 5.4 C (41.7 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: Utah, United States, 40.58 latitude, -110.59 longitude.
  • Elevation: 3,231 m (10,600 ft).
  • Period of record: 1978 to 2026, 49 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Brown Duck, with 2026 drawn through them The band shows the record high and record low for each calendar day at Brown Duck. The lines show the 2026 daily maximum and minimum. 4 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 Brown Duck. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Brown Duck, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan13.4 C (56.1 F)-29.2 C (-20.6 F)5.5 C (41.9 F)-19.1 C (-2.4 F)
Feb19.7 C (67.5 F)-33.9 C (-29.0 F)6.2 C (43.2 F)-20.4 C (-4.7 F)
Mar23.1 C (73.6 F)-26.0 C (-14.8 F)15.3 C (59.5 F)-16.6 C (2.1 F)
Apr21.4 C (70.5 F)-25.1 C (-13.2 F)11.3 C (52.3 F)-16.3 C (2.7 F)
May23.7 C (74.7 F)-18.2 C (-0.8 F)17.8 C (64.0 F)-10.0 C (14.0 F)
Jun25.9 C (78.6 F)-11.0 C (12.2 F)21.4 C (70.5 F)-3.9 C (25.0 F)
Jul28.3 C (82.9 F)-3.5 C (25.7 F)25.0 C (77.0 F)2.7 C (36.9 F)
Aug31.0 C (87.8 F)-4.2 C (24.4 F)25.0 C (77.0 F)3.7 C (38.7 F)
Sep26.9 C (80.4 F)-14.3 C (6.3 F)17.6 C (63.7 F)-1.8 C (28.8 F)
Oct20.7 C (69.3 F)-24.7 C (-12.5 F)16.9 C (62.4 F)0.8 C (33.4 F)
Nov17.7 C (63.9 F)-29.7 C (-21.5 F)n/an/a
Dec10.6 C (51.1 F)-32.8 C (-27.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Brown Duck by the year they were set 1,464 records at Brown Duck still stand. 1996 holds the most, with 63. 0204060801986: 131987: 411988: 371989: 381990: 281991: 231992: 211993: 491994: 301995: 401996: 631997: 381998: 261999: 422000: 512001: 292002: 302003: 302004: 302005: 202006: 352007: 302008: 322009: 262010: 332011: 282012: 252013: 342014: 202015: 352016: 212017: 372018: 162019: 282020: 612021: 512022: 542023: 502024: 512025: 592026: 59198619911996200120062011201620212026
1,464 records at Brown Duck still stand. 1996 holds the most, with 63.
Standing records at Brown Duck by the year they were set
Year setStanding records
198613
198741
198837
198938
199028
199123
199221
199349
199430
199540
199663
199738
199826
199942
200051
200129
200230
200330
200430
200520
200635
200730
200832
200926
201033
201128
201225
201334
201420
201535
201621
201737
201816
201928
202061
202151
202254
202350
202451
202559
202659

All-Time Record Progression

7 new records
When Brown Duck set new all-time records 7 all-time records were set at Brown Duck between 18 August 2020 and 26 July 2026. Each dot is a new record. Record high maximum temperatureRecord high minimum temperatureRecord daily precipitation18 August 2020: Record high maximum temperature 31.0 C (87.8 F)15 June 2021: Record high minimum temperature 13.7 C (56.7 F)9 July 2021: Record high minimum temperature 13.9 C (57.0 F)18 August 2021: Record daily precipitation 81.3 mm (3.2 in)29 July 2023: Record high minimum temperature 14.0 C (57.2 F)13 July 2026: Record high minimum temperature 14.4 C (57.9 F)26 July 2026: Record high minimum temperature 15.7 C (60.3 F)20202025
7 all-time records were set at Brown Duck between 18 August 2020 and 26 July 2026. Each dot is a new record.
When Brown Duck set new all-time records
DateKindDetail
2020-08-18Record high maximum temperatureRecord high maximum temperature 31.0 C (87.8 F)
2021-06-15Record high minimum temperatureRecord high minimum temperature 13.7 C (56.7 F)
2021-07-09Record high minimum temperatureRecord high minimum temperature 13.9 C (57.0 F)
2021-08-18Record daily precipitationRecord daily precipitation 81.3 mm (3.2 in)
2023-07-29Record high minimum temperatureRecord high minimum temperature 14.0 C (57.2 F)
2026-07-13Record high minimum temperatureRecord high minimum temperature 14.4 C (57.9 F)
2026-07-26Record high minimum temperatureRecord high minimum temperature 15.7 C (60.3 F)

Wettest Day of Each Month

Aug: 81.3 mm (3.2 in)
Record daily precipitation for each month at Brown Duck The wettest day on record for each calendar month at Brown Duck. The most was 81.3 mm (3.2 in) on 18 August 2021. 0255075100 Jan: 43.2 mm (1.7 in), 9 January 1980 Jan Feb: 55.9 mm (2.2 in), 17 February 1986 Feb Mar: 66.0 mm (2.6 in), 11 March 1995 Mar Apr: 55.9 mm (2.2 in), 13 April 1982 Apr May: 43.2 mm (1.7 in), 23 May 2019 May Jun: 55.9 mm (2.2 in), 12 June 1980 Jun Jul: 50.8 mm (2.0 in), 27 July 1985 Jul Aug: 81.3 mm (3.2 in), 18 August 2021 Aug Sep: 68.6 mm (2.7 in), 27 September 2014 Sep Oct: 76.2 mm (3.0 in), 20 October 2004 Oct Nov: 55.9 mm (2.2 in), 9 November 2012 Nov Dec: 61.0 mm (2.4 in), 19 December 2010 Dec
The wettest day on record for each calendar month at Brown Duck. The most was 81.3 mm (3.2 in) on 18 August 2021.
Record daily precipitation for each month at Brown Duck
MonthRecord daily precipitation (mm)Date
Jan43.2 mm (1.7 in)9 January 1980
Feb55.9 mm (2.2 in)17 February 1986
Mar66.0 mm (2.6 in)11 March 1995
Apr55.9 mm (2.2 in)13 April 1982
May43.2 mm (1.7 in)23 May 2019
Jun55.9 mm (2.2 in)12 June 1980
Jul50.8 mm (2.0 in)27 July 1985
Aug81.3 mm (3.2 in)18 August 2021
Sep68.6 mm (2.7 in)27 September 2014
Oct76.2 mm (3.0 in)20 October 2004
Nov55.9 mm (2.2 in)9 November 2012
Dec61.0 mm (2.4 in)19 December 2010

Period of Record Coverage

1986 to 2026
Days with data per year at Brown Duck 41 years of record at Brown Duck, 1986 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1986, 1989, 1990, 1991, 1993, 2026. 1986: 115 of 365 days1987: 361 of 365 days1988: 359 of 366 days1989: 312 of 365 days1990: 247 of 365 days1991: 315 of 365 days1992: 365 of 366 days1993: 301 of 365 days1994: 333 of 365 days1995: 364 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 364 of 365 days1999: 363 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 364 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 344 of 366 days2021: 364 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 282 of 365 days1990200020102020
41 years of record at Brown Duck, 1986 to 2026. 6 years have data for under 90 percent of days and are left out of rankings: 1986, 1989, 1990, 1991, 1993, 2026.
Days with data per year at Brown Duck
YearDays with dataShare of yearComplete
198611532%No
198736199%Yes
198835998%Yes
198931285%No
199024768%No
199131586%No
1992365100%Yes
199330182%No
199433391%Yes
1995364100%Yes
1996366100%Yes
1997365100%Yes
1998364100%Yes
199936399%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003364100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009364100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
202034494%Yes
2021364100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628277%No

Latest Records

20
Latest records at Brown Duck
DateStationRecordValueBeat old record byOld record stoodSignificance
8 October 2026Brown Duck, USdaily high min (Provisional)5.4 C (41.7 F)1.8 C (3.2 F)1 year7 of 100 (Routine)
7 October 2026Brown Duck, USdaily high min (Provisional)5.6 C (42.1 F)3.2 C (5.8 F)1 year10 of 100 (Routine)
6 October 2026Brown Duck, USdaily high min (Provisional)6.2 C (43.2 F)2.4 C (4.3 F)1 year9 of 100 (Routine)
5 October 2026Brown Duck, USmonthly high min (Provisional)7.8 C (46.0 F)1.3 C (2.3 F)0 years16 of 100 (Routine)
4 October 2026Brown Duck, USdaily high min (Provisional)6.0 C (42.8 F)0.5 C (0.9 F)1 year5 of 100 (Routine)
3 October 2026Brown Duck, USmonthly high min (Provisional)6.5 C (43.7 F)0.4 C (0.7 F)1 year14 of 100 (Routine)
2 October 2026Brown Duck, USdaily high min (Provisional)5.4 C (41.7 F)0.7 C (1.3 F)1 year5 of 100 (Routine)
16 September 2026Brown Duck, USdaily rain (Tie, Provisional)12.7 mm (0.5 in)tie24 years2 of 100 (Routine)
13 September 2026Brown Duck, USdaily high min (Provisional)8.5 C (47.3 F)1.6 C (2.9 F)4 years9 of 100 (Routine)
12 September 2026Brown Duck, USdaily high min (Tie, Provisional)7.4 C (45.3 F)tie8 years1 of 100 (Routine)
11 September 2026Brown Duck, USdaily high min (Tie, Provisional)7.2 C (45.0 F)tie8 years1 of 100 (Routine)
10 September 2026Brown Duck, USdaily high min (Provisional)6.9 C (44.4 F)0.9 C (1.6 F)4 years7 of 100 (Routine)
29 August 2026Brown Duck, USdaily rain (Provisional)20.3 mm (0.8 in)12.7 mm (0.5 in)23 years20 of 100 (Routine)
28 August 2026Brown Duck, USdaily rain (Provisional)12.7 mm (0.5 in)2.5 mm (0.10 in)44 years20 of 100 (Routine)
26 August 2026Brown Duck, USdaily high min (Provisional)9.4 C (48.9 F)1.5 C (2.7 F)16 years13 of 100 (Routine)
20 August 2026Brown Duck, USdaily high min (Provisional)12.2 C (54.0 F)0.4 C (0.7 F)0 years5 of 100 (Routine)
18 August 2026Brown Duck, USdaily high min (Provisional)10.8 C (51.4 F)0.9 C (1.6 F)5 years8 of 100 (Routine)
17 August 2026Brown Duck, USdaily high min (Tie, Provisional)9.2 C (48.6 F)tie3 years1 of 100 (Routine)
11 August 2026Brown Duck, USdaily high min9.8 C (49.6 F)0.7 C (1.3 F)8 years8 of 100 (Routine)
9 August 2026Brown Duck, USdaily high min9.6 C (49.3 F)0.9 C (1.6 F)25 years14 of 100 (Routine)

Climate Trend

33 complete years, 1987 to 2025
Annual mean temperature at Brown Duck as warming stripes, 1987 to 2025 One stripe for each of 33 complete years at Brown Duck, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 1.1 C (33.9 F); red stripes are warmer. The coolest year was 2002, at -0.3 C (31.5 F), and the warmest was 2025, at 2.4 C (36.4 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1987: 0.0 C, -1.1 C from the station mean1988: 0.4 C, -0.7 C from the station mean1992: 0.8 C, -0.2 C from the station mean1995: 1.2 C, +0.1 C from the station mean1996: 1.2 C, +0.1 C from the station mean1997: 0.9 C, -0.2 C from the station mean1998: 0.7 C, -0.4 C from the station mean1999: 1.4 C, +0.4 C from the station mean2000: 1.8 C, +0.7 C from the station mean2001: 1.2 C, +0.2 C from the station mean2002: -0.3 C, -1.3 C from the station mean2003: 0.7 C, -0.4 C from the station mean2004: 0.9 C, -0.2 C from the station mean2005: 1.1 C, 0.0 C from the station mean2006: 0.8 C, -0.3 C from the station mean2007: 1.7 C, +0.7 C from the station mean2008: 0.1 C, -1.0 C from the station mean2009: 0.6 C, -0.5 C from the station mean2010: 0.6 C, -0.5 C from the station mean2011: 0.2 C, -0.9 C from the station mean2012: 1.9 C, +0.8 C from the station mean2013: 0.8 C, -0.3 C from the station mean2014: 1.3 C, +0.2 C from the station mean2015: 2.0 C, +1.0 C from the station mean2016: 1.7 C, +0.7 C from the station mean2017: 1.8 C, +0.8 C from the station mean2018: 1.6 C, +0.5 C from the station mean2019: 1.0 C, -0.1 C from the station mean2021: 1.7 C, +0.6 C from the station mean2022: 1.0 C, -0.1 C from the station mean2023: 0.7 C, -0.4 C from the station mean2024: 1.7 C, +0.7 C from the station mean2025: 2.4 C, +1.3 C from the station mean198719901995200020052010201520202025
One stripe for each of 33 complete years at Brown Duck, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 1.1 C (33.9 F); red stripes are warmer. The coolest year was 2002, at -0.3 C (31.5 F), and the warmest was 2025, at 2.4 C (36.4 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Brown Duck as warming stripes, 1987 to 2025
YearAnnual mean temperatureDifference from the station mean
19870.0 C-1.09 C
19880.4 C-0.72 C
19920.8 C-0.23 C
19951.2 C+0.13 C
19961.2 C+0.10 C
19970.9 C-0.16 C
19980.7 C-0.39 C
19991.4 C+0.37 C
20001.8 C+0.75 C
20011.2 C+0.17 C
2002-0.3 C-1.34 C
20030.7 C-0.41 C
20040.9 C-0.18 C
20051.1 C-0.01 C
20060.8 C-0.30 C
20071.7 C+0.67 C
20080.1 C-1.02 C
20090.6 C-0.52 C
20100.6 C-0.47 C
20110.2 C-0.86 C
20121.9 C+0.79 C
20130.8 C-0.29 C
20141.3 C+0.19 C
20152.0 C+0.96 C
20161.7 C+0.67 C
20171.8 C+0.76 C
20181.6 C+0.52 C
20191.0 C-0.12 C
20211.7 C+0.59 C
20221.0 C-0.08 C
20230.7 C-0.38 C
20241.7 C+0.66 C
20252.4 C+1.35 C

The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1987 to 2025. In Fahrenheit: 0.5 F (0.1 to 0.9) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Brown Duck
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 0.9) per decade1987 to 202533Rise
Mean daily maximum-0.35 C (-0.72 to 0.02) per decade-0.63 F (-1.30 to 0.04) per decade1987 to 202533Not clearly different from zero
Mean daily minimum0.9 C (0.7 to 1.2) per decade1.6 F (1.2 to 2.1) per decade1987 to 202533Rise

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

1978 to 2026
Yearly extremes at Brown Duck: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)31.0 C (87.8 F)202025.7 C (78.3 F)41
Coldest night (TNn)-33.9 C (-29.0 F)1989-27.1 C (-16.8 F)41
Wettest day (Rx1day)81.3 mm (3.2 in)202138.1 mm (1.5 in)49
Wettest five days (Rx5day)182.9 mm (7.2 in)198676.2 mm (3.0 in)49
Longest dry spell (CDD)48 days200122 days49

Hottest day (TXx)

Hottest day (TXx) at Brown Duck by year The hottest day of the year at Brown Duck, 1978 to 2026. The record is 31.0 C (87.8 F) in 2020, marked on the chart; the median year is 25.7 C (78.3 F). 152025303519801990200020102020Record: 31.0 C (87.8 F) in 2020
The hottest day of the year at Brown Duck, 1978 to 2026. The record is 31.0 C (87.8 F) in 2020, marked on the chart; the median year is 25.7 C (78.3 F).
Hottest day (TXx) at Brown Duck by year
YearHottest day (TXx)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
198619.5 C (67.1 F)
198723.2 C (73.8 F)
198827.1 C (80.8 F)
198927.3 C (81.1 F)
199026.3 C (79.3 F)
199124.7 C (76.5 F)
199225.5 C (77.9 F)
199326.6 C (79.9 F)
199427.9 C (82.2 F)
199525.7 C (78.3 F)
199626.7 C (80.1 F)
199726.2 C (79.2 F)
199827.5 C (81.5 F)
199923.7 C (74.7 F)
200028.0 C (82.4 F)
200128.3 C (82.9 F)
200219.2 C (66.6 F)
200323.8 C (74.8 F)
200423.8 C (74.8 F)
200527.5 C (81.5 F)
200626.2 C (79.2 F)
200725.9 C (78.6 F)
200825.1 C (77.2 F)
200925.8 C (78.4 F)
201025.3 C (77.5 F)
201124.3 C (75.7 F)
201224.2 C (75.6 F)
201326.1 C (79.0 F)
201426.6 C (79.9 F)
201525.4 C (77.7 F)
201626.6 C (79.9 F)
201725.1 C (77.2 F)
201826.1 C (79.0 F)
201924.2 C (75.6 F)
202031.0 C (87.8 F)
202125.9 C (78.6 F)
202224.3 C (75.7 F)
202325.3 C (77.5 F)
202425.5 C (77.9 F)
202524.4 C (75.9 F)
202625.0 C (77.0 F)

Coldest night (TNn)

Coldest night (TNn) at Brown Duck by year The coldest night of the year at Brown Duck, 1978 to 2026. The record is -33.9 C (-29.0 F) in 1989, marked on the chart; the median year is -27.1 C (-16.8 F). -35-30-25-2019801990200020102020Record: -33.9 C (-29.0 F) in 1989
The coldest night of the year at Brown Duck, 1978 to 2026. The record is -33.9 C (-29.0 F) in 1989, marked on the chart; the median year is -27.1 C (-16.8 F).
Coldest night (TNn) at Brown Duck by year
YearColdest night (TNn)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986-26.0 C (-14.8 F)
1987-28.1 C (-18.6 F)
1988-27.4 C (-17.3 F)
1989-33.9 C (-29.0 F)
1990-32.8 C (-27.0 F)
1991-27.0 C (-16.6 F)
1992-26.7 C (-16.1 F)
1993-27.6 C (-17.7 F)
1994-27.7 C (-17.9 F)
1995-25.3 C (-13.5 F)
1996-29.3 C (-20.7 F)
1997-28.1 C (-18.6 F)
1998-29.4 C (-20.9 F)
1999-26.4 C (-15.5 F)
2000-25.0 C (-13.0 F)
2001-24.3 C (-11.7 F)
2002-23.0 C (-9.4 F)
2003-24.1 C (-11.4 F)
2004-27.3 C (-17.1 F)
2005-28.8 C (-19.8 F)
2006-29.7 C (-21.5 F)
2007-27.1 C (-16.8 F)
2008-28.7 C (-19.7 F)
2009-28.8 C (-19.8 F)
2010-27.6 C (-17.7 F)
2011-31.7 C (-25.1 F)
2012-25.2 C (-13.4 F)
2013-29.2 C (-20.6 F)
2014-26.0 C (-14.8 F)
2015-25.0 C (-13.0 F)
2016-25.0 C (-13.0 F)
2017-28.5 C (-19.3 F)
2018-27.1 C (-16.8 F)
2019-26.7 C (-16.1 F)
2020-27.8 C (-18.0 F)
2021-24.2 C (-11.6 F)
2022-25.8 C (-14.4 F)
2023-24.7 C (-12.5 F)
2024-20.7 C (-5.3 F)
2025-26.7 C (-16.1 F)
2026-20.4 C (-4.7 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Brown Duck by year The wettest day of the year at Brown Duck, 1978 to 2026. The record is 81.3 mm (3.2 in) in 2021, marked on the chart; the median year is 38.1 mm (1.5 in). 2040608010019801990200020102020Record: 81.3 mm (3.2 in) in 2021
The wettest day of the year at Brown Duck, 1978 to 2026. The record is 81.3 mm (3.2 in) in 2021, marked on the chart; the median year is 38.1 mm (1.5 in).
Wettest day (Rx1day) at Brown Duck by year
YearWettest day (Rx1day)
197827.9 mm (1.1 in)
197933.0 mm (1.3 in)
198055.9 mm (2.2 in)
198133.0 mm (1.3 in)
198255.9 mm (2.2 in)
198335.6 mm (1.4 in)
198427.9 mm (1.1 in)
198550.8 mm (2.0 in)
198655.9 mm (2.2 in)
198748.3 mm (1.9 in)
198822.9 mm (0.9 in)
198930.5 mm (1.2 in)
199033.0 mm (1.3 in)
199127.9 mm (1.1 in)
199227.9 mm (1.1 in)
199333.0 mm (1.3 in)
199435.6 mm (1.4 in)
199566.0 mm (2.6 in)
199630.5 mm (1.2 in)
199738.1 mm (1.5 in)
199835.6 mm (1.4 in)
199943.2 mm (1.7 in)
200033.0 mm (1.3 in)
200145.7 mm (1.8 in)
200250.8 mm (2.0 in)
200330.5 mm (1.2 in)
200476.2 mm (3.0 in)
200538.1 mm (1.5 in)
200630.5 mm (1.2 in)
200735.6 mm (1.4 in)
200838.1 mm (1.5 in)
200927.9 mm (1.1 in)
201061.0 mm (2.4 in)
201163.5 mm (2.5 in)
201255.9 mm (2.2 in)
201350.8 mm (2.0 in)
201468.6 mm (2.7 in)
201527.9 mm (1.1 in)
201653.3 mm (2.1 in)
201740.6 mm (1.6 in)
201835.6 mm (1.4 in)
201943.2 mm (1.7 in)
202053.3 mm (2.1 in)
202181.3 mm (3.2 in)
202238.1 mm (1.5 in)
202338.1 mm (1.5 in)
202430.5 mm (1.2 in)
202533.0 mm (1.3 in)
202622.9 mm (0.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Brown Duck by year The wettest five days of the year at Brown Duck, 1978 to 2026. The record is 182.9 mm (7.2 in) in 1986, marked on the chart; the median year is 76.2 mm (3.0 in). 5010015020019801990200020102020Record: 182.9 mm (7.2 in) in 1986
The wettest five days of the year at Brown Duck, 1978 to 2026. The record is 182.9 mm (7.2 in) in 1986, marked on the chart; the median year is 76.2 mm (3.0 in).
Wettest five days (Rx5day) at Brown Duck by year
YearWettest five days (Rx5day)
197855.8 mm (2.2 in)
197953.4 mm (2.1 in)
1980162.5 mm (6.4 in)
198176.2 mm (3.0 in)
1982114.3 mm (4.5 in)
198381.2 mm (3.2 in)
198463.6 mm (2.5 in)
1985104.2 mm (4.1 in)
1986182.9 mm (7.2 in)
198766.1 mm (2.6 in)
198856.0 mm (2.2 in)
198953.3 mm (2.1 in)
199053.3 mm (2.1 in)
199176.2 mm (3.0 in)
199263.5 mm (2.5 in)
199371.1 mm (2.8 in)
199476.2 mm (3.0 in)
199583.7 mm (3.3 in)
199673.7 mm (2.9 in)
199763.6 mm (2.5 in)
199860.8 mm (2.4 in)
1999106.6 mm (4.2 in)
200091.4 mm (3.6 in)
200171.1 mm (2.8 in)
200281.3 mm (3.2 in)
200376.2 mm (3.0 in)
2004165.2 mm (6.5 in)
2005134.6 mm (5.3 in)
200686.3 mm (3.4 in)
200756.0 mm (2.2 in)
200863.5 mm (2.5 in)
200950.8 mm (2.0 in)
2010152.4 mm (6.0 in)
2011132.1 mm (5.2 in)
201255.9 mm (2.2 in)
201391.5 mm (3.6 in)
2014126.9 mm (5.0 in)
201553.3 mm (2.1 in)
201681.2 mm (3.2 in)
2017116.8 mm (4.6 in)
201853.4 mm (2.1 in)
2019116.9 mm (4.6 in)
202081.2 mm (3.2 in)
2021121.9 mm (4.8 in)
202255.8 mm (2.2 in)
202381.3 mm (3.2 in)
202481.3 mm (3.2 in)
202571.1 mm (2.8 in)
202653.4 mm (2.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Brown Duck by year The longest dry spell of the year at Brown Duck, 1978 to 2026. The record is 48 days in 2001, marked on the chart; the median year is 22 days. 102030405019801990200020102020Record: 48 days in 2001
The longest dry spell of the year at Brown Duck, 1978 to 2026. The record is 48 days in 2001, marked on the chart; the median year is 22 days.
Longest dry spell (CDD) at Brown Duck by year
YearLongest dry spell (CDD)
197814 days
197943 days
198025 days
198135 days
198218 days
198322 days
198415 days
198522 days
198614 days
198724 days
198823 days
198922 days
199019 days
199131 days
199225 days
199324 days
199419 days
199521 days
199622 days
199729 days
199831 days
199918 days
200037 days
200148 days
200218 days
200326 days
200416 days
200517 days
200621 days
200733 days
200824 days
200919 days
201015 days
201119 days
201220 days
201331 days
201432 days
201520 days
201620 days
201727 days
201824 days
201921 days
202031 days
202119 days
202244 days
202314 days
202431 days
202519 days
202628 days

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

33 years with a frost

Across 33 years with a frost, the median last spring frost at Brown Duck falls on 21 June and the median first autumn frost on 30 August, which leaves a median of 73 days between them.

Fitted over all years, the growing season changes by +14.6 days per decade at this station.

Frost dates and growing season at Brown Duck
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost21 Junen/a21 Junen/a-1.4 days per decade
First autumn frost30 Augustn/a2 Septembern/a+13.2 days per decade
Growing days73 daysn/a76 daysn/a+14.6 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.

Rainfall Return Levels

47 years, 1979 to 2025

A day with at least 39.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 95.3 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Brown Duck: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.3 mm (1.5 in)
5 years51.7 mm (2.0 in)
10 years60.9 mm (2.4 in)
25 years73.6 mm (2.9 in)
50 years84.0 mm (3.3 in)Longer than the 47 years of record
100 years95.3 mm (3.8 in)Longer than the 47 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 47 years of values from 1979 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 81.3 mm (3.2 in) in 2021; 76.2 mm (3.0 in) in 2004; 68.6 mm (2.7 in) in 2014.

Download the Data

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