Built 2026-10-14 (14 October 2026)

Lake Alan Henry Weather Records (USC00414967)

Record envelope, standing records and threshold days for Lake Alan Henry (USC00414967), Texas, United States, with 33 years of record.

Key Facts for Lake Alan Henry

  • Lake Alan Henry (USC00414967) is a weather station in Texas, United States at 33.06 latitude and -101.05 longitude, 696 m (2,282 ft) above sea level.
  • The station reports from 1994 to 2026, 33 years of record.
  • 1,464 records set at Lake Alan Henry still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Lake Alan Henry tied a daily record high maximum temperature of 36.1 C (97.0 F) on 28 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Texas, United States, 33.06 latitude, -101.05 longitude.
  • Elevation: 696 m (2,282 ft).
  • Period of record: 1994 to 2026, 33 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

27 days at or beyond a record
Daily record high and record low at Lake Alan Henry, with 2026 drawn through them The band shows the record high and record low for each calendar day at Lake Alan Henry. The lines show the 2026 daily maximum and minimum. 27 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 Lake Alan Henry. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Lake Alan Henry, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.0 C (86.0 F)-18.3 C (-0.9 F)27.8 C (82.0 F)-18.3 C (-0.9 F)
Feb33.3 C (91.9 F)-20.6 C (-5.1 F)29.4 C (84.9 F)-6.1 C (21.0 F)
Mar39.4 C (102.9 F)-12.2 C (10.0 F)39.4 C (102.9 F)-2.8 C (27.0 F)
Apr40.6 C (105.1 F)-3.9 C (25.0 F)36.7 C (98.1 F)3.9 C (39.0 F)
May43.3 C (109.9 F)0.0 C (32.0 F)35.6 C (96.1 F)8.3 C (46.9 F)
Jun46.7 C (116.1 F)10.6 C (51.1 F)41.1 C (106.0 F)17.8 C (64.0 F)
Jul45.6 C (114.1 F)11.7 C (53.1 F)39.4 C (102.9 F)18.3 C (64.9 F)
Aug45.6 C (114.1 F)11.7 C (53.1 F)41.7 C (107.1 F)21.7 C (71.1 F)
Sep42.2 C (108.0 F)5.0 C (41.0 F)40.0 C (104.0 F)18.3 C (64.9 F)
Oct39.4 C (102.9 F)-8.9 C (16.0 F)31.7 C (89.1 F)15.0 C (59.0 F)
Nov33.9 C (93.0 F)-8.3 C (17.1 F)n/an/a
Dec30.6 C (87.1 F)-14.4 C (6.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Lake Alan Henry by the year they were set 1,464 records at Lake Alan Henry still stand. 2011 holds the most, with 86. 02550751001994: 251995: 641996: 721997: 521998: 431999: 382000: 622001: 262002: 292003: 322004: 422005: 322006: 402007: 282008: 322009: 442010: 412011: 862012: 352013: 452014: 492015: 342016: 292017: 462018: 432019: 492020: 532021: 492022: 632023: 622024: 492025: 422026: 28199419982002200620102014201820222026
1,464 records at Lake Alan Henry still stand. 2011 holds the most, with 86.
Standing records at Lake Alan Henry by the year they were set
Year setStanding records
199425
199564
199672
199752
199843
199938
200062
200126
200229
200332
200442
200532
200640
200728
200832
200944
201041
201186
201235
201345
201449
201534
201629
201746
201843
201949
202053
202149
202263
202362
202449
202542
202628

Wettest Day of Each Month

Oct: 113.0 mm (4.4 in)
Record daily precipitation for each month at Lake Alan Henry The wettest day on record for each calendar month at Lake Alan Henry. The most was 113.0 mm (4.4 in) on 26 October 2000. 050100150 Jan: 47.5 mm (1.9 in), 10 January 2013 Jan Feb: 39.6 mm (1.6 in), 20 February 1997 Feb Mar: 87.9 mm (3.5 in), 23 March 2000 Mar Apr: 62.7 mm (2.5 in), 6 April 2019 Apr May: 79.2 mm (3.1 in), 31 May 2021 May Jun: 87.1 mm (3.4 in), 28 June 2021 Jun Jul: 103.6 mm (4.1 in), 28 July 2004 Jul Aug: 100.8 mm (4.0 in), 22 August 2022 Aug Sep: 64.5 mm (2.5 in), 23 September 2024 Sep Oct: 113.0 mm (4.4 in), 26 October 2000 Oct Nov: 105.2 mm (4.1 in), 7 November 2019 Nov Dec: 38.1 mm (1.5 in), 21 December 2013 Dec
The wettest day on record for each calendar month at Lake Alan Henry. The most was 113.0 mm (4.4 in) on 26 October 2000.
Record daily precipitation for each month at Lake Alan Henry
MonthRecord daily precipitation (mm)Date
Jan47.5 mm (1.9 in)10 January 2013
Feb39.6 mm (1.6 in)20 February 1997
Mar87.9 mm (3.5 in)23 March 2000
Apr62.7 mm (2.5 in)6 April 2019
May79.2 mm (3.1 in)31 May 2021
Jun87.1 mm (3.4 in)28 June 2021
Jul103.6 mm (4.1 in)28 July 2004
Aug100.8 mm (4.0 in)22 August 2022
Sep64.5 mm (2.5 in)23 September 2024
Oct113.0 mm (4.4 in)26 October 2000
Nov105.2 mm (4.1 in)7 November 2019
Dec38.1 mm (1.5 in)21 December 2013

Period of Record Coverage

1994 to 2026
Days with data per year at Lake Alan Henry 33 years of record at Lake Alan Henry, 1994 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1994, 2026. 1994: 245 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 365 of 365 days1998: 364 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 363 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 334 of 365 days2008: 366 of 366 days2009: 365 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: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 281 of 365 days1995200020052010201520202025
33 years of record at Lake Alan Henry, 1994 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1994, 2026.
Days with data per year at Lake Alan Henry
YearDays with dataShare of yearComplete
199424567%No
1995365100%Yes
1996365100%Yes
1997365100%Yes
1998364100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
200436399%Yes
2005365100%Yes
2006364100%Yes
200733492%Yes
2008366100%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628177%No

Latest Records

20
Latest records at Lake Alan Henry
DateStationRecordValueBeat old record byOld record stoodSignificance
28 September 2026Lake Alan Henry, USdaily high max (Tie, Provisional)36.1 C (97.0 F)tie7 years1 of 100 (Routine)
25 September 2026Lake Alan Henry, USdaily high min (Provisional)22.2 C (72.0 F)0.5 C (0.9 F)28 years12 of 100 (Routine)
20 September 2026Lake Alan Henry, USdaily rain (Provisional)23.9 mm (0.9 in)20.3 mm (0.8 in)12 years20 of 100 (Routine)
19 September 2026Lake Alan Henry, USdaily high min (Provisional)25.0 C (77.0 F)1.7 C (3.1 F)28 years15 of 100 (Routine)
16 September 2026Lake Alan Henry, USdaily high max (Tie, Provisional)35.6 C (96.1 F)tie16 years1 of 100 (Routine)
15 September 2026Lake Alan Henry, USdaily high min (Provisional)25.0 C (77.0 F)1.7 C (3.1 F)16 years11 of 100 (Routine)
14 September 2026Lake Alan Henry, USdaily high min (Provisional)25.0 C (77.0 F)2.8 C (5.0 F)4 years11 of 100 (Routine)
13 September 2026Lake Alan Henry, USdaily high min (Provisional)25.6 C (78.1 F)2.3 C (4.1 F)15 years13 of 100 (Routine)
13 September 2026Lake Alan Henry, USdaily high max (Provisional)38.3 C (100.9 F)0.5 C (0.9 F)15 years8 of 100 (Routine)
10 September 2026Lake Alan Henry, USdaily high min (Provisional)26.1 C (79.0 F)2.8 C (5.0 F)3 years10 of 100 (Routine)
9 September 2026Lake Alan Henry, USdaily high min (Provisional)26.1 C (79.0 F)1.7 C (3.1 F)7 years9 of 100 (Routine)
8 September 2026Lake Alan Henry, USdaily high min (Provisional)25.6 C (78.1 F)0.6 C (1.1 F)3 years4 of 100 (Routine)
7 September 2026Lake Alan Henry, USdaily high min (Provisional)24.4 C (75.9 F)1.1 C (2.0 F)31 years14 of 100 (Routine)
5 September 2026Lake Alan Henry, USdaily high max (Tie, Provisional)39.4 C (102.9 F)tie3 years0 of 100 (Routine)
4 September 2026Lake Alan Henry, USmonthly high min (Provisional)26.7 C (80.1 F)1.1 C (2.0 F)28 years23 of 100 (Routine)
4 September 2026Lake Alan Henry, USdaily high max (Provisional)40.0 C (104.0 F)1.1 C (2.0 F)25 years12 of 100 (Routine)
2 September 2026Lake Alan Henry, USmonthly high min (Tie, Provisional)25.6 C (78.1 F)tie28 years5 of 100 (Routine)
1 September 2026Lake Alan Henry, USmonthly high min (Tie, Provisional)25.6 C (78.1 F)tie28 years5 of 100 (Routine)
30 August 2026Lake Alan Henry, USdaily high min (Tie, Provisional)26.1 C (79.0 F)tie15 years1 of 100 (Routine)
26 August 2026Lake Alan Henry, USdaily high min (Tie, Provisional)25.0 C (77.0 F)tie32 years3 of 100 (Routine)

Climate Trend

30 complete years, 1995 to 2025
Annual mean temperature at Lake Alan Henry as warming stripes, 1995 to 2025 One stripe for each of 30 complete years at Lake Alan Henry, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 17.7 C (63.9 F); red stripes are warmer. The coolest year was 1997, at 16.5 C (61.8 F), and the warmest was 2024, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1995: 17.4 C, -0.4 C from the station mean1996: 17.6 C, -0.2 C from the station mean1997: 16.5 C, -1.2 C from the station mean1998: 18.4 C, +0.7 C from the station mean1999: 18.2 C, +0.4 C from the station mean2000: 18.2 C, +0.5 C from the station mean2001: 17.7 C, 0.0 C from the station mean2002: 16.9 C, -0.8 C from the station mean2003: 17.5 C, -0.2 C from the station mean2004: 17.0 C, -0.8 C from the station mean2005: 17.1 C, -0.7 C from the station mean2006: 18.1 C, +0.4 C from the station mean2008: 17.2 C, -0.5 C from the station mean2009: 17.1 C, -0.6 C from the station mean2010: 17.0 C, -0.8 C from the station mean2011: 18.6 C, +0.8 C from the station mean2012: 18.7 C, +1.0 C from the station mean2013: 17.0 C, -0.7 C from the station mean2014: 16.8 C, -0.9 C from the station mean2015: 17.2 C, -0.5 C from the station mean2016: 18.1 C, +0.4 C from the station mean2017: 18.0 C, +0.3 C from the station mean2018: 17.6 C, -0.2 C from the station mean2019: 17.5 C, -0.3 C from the station mean2020: 18.3 C, +0.6 C from the station mean2021: 17.8 C, +0.1 C from the station mean2022: 18.0 C, +0.3 C from the station mean2023: 18.9 C, +1.1 C from the station mean2024: 19.1 C, +1.3 C from the station mean2025: 18.5 C, +0.8 C from the station mean1995200020052010201520202025
One stripe for each of 30 complete years at Lake Alan Henry, 1995 to 2025. Blue stripes are years cooler than the station's own mean of 17.7 C (63.9 F); red stripes are warmer. The coolest year was 1997, at 16.5 C (61.8 F), and the warmest was 2024, at 19.1 C (66.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Lake Alan Henry as warming stripes, 1995 to 2025
YearAnnual mean temperatureDifference from the station mean
199517.4 C-0.37 C
199617.6 C-0.17 C
199716.5 C-1.19 C
199818.4 C+0.68 C
199918.2 C+0.43 C
200018.2 C+0.45 C
200117.7 C-0.01 C
200216.9 C-0.81 C
200317.5 C-0.23 C
200417.0 C-0.76 C
200517.1 C-0.68 C
200618.1 C+0.40 C
200817.2 C-0.52 C
200917.1 C-0.62 C
201017.0 C-0.78 C
201118.6 C+0.82 C
201218.7 C+0.98 C
201317.0 C-0.69 C
201416.8 C-0.95 C
201517.2 C-0.51 C
201618.1 C+0.41 C
201718.0 C+0.30 C
201817.6 C-0.16 C
201917.5 C-0.27 C
202018.3 C+0.60 C
202117.8 C+0.09 C
202218.0 C+0.31 C
202318.9 C+1.12 C
202419.1 C+1.34 C
202518.5 C+0.77 C

The annual mean temperature here has risen by 0.30 C (0.04 to 0.56) per decade over 1995 to 2025. In Fahrenheit: 0.5 F (0.1 to 1.0) 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 Lake Alan Henry
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.30 C (0.04 to 0.56) per decade0.5 F (0.1 to 1.0) per decade1995 to 202530Rise
Mean daily maximum0.5 C (0.1 to 0.8) per decade0.8 F (0.2 to 1.4) per decade1995 to 202530Rise
Mean daily minimum0.1 C (-0.1 to 0.4) per decade0.3 F (-0.2 to 0.7) per decade1995 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

1994 to 2026
Yearly extremes at Lake Alan Henry: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.7 C (116.1 F)199441.7 C (107.1 F)33
Coldest night (TNn)-20.6 C (-5.1 F)2021-12.2 C (10.0 F)33
Wettest day (Rx1day)113.0 mm (4.4 in)200055.6 mm (2.2 in)33
Wettest five days (Rx5day)222.7 mm (8.8 in)200487.0 mm (3.4 in)33
Longest dry spell (CDD)101 days201146 days33

Hottest day (TXx)

Hottest day (TXx) at Lake Alan Henry by year The hottest day of the year at Lake Alan Henry, 1994 to 2026. The record is 46.7 C (116.1 F) in 1994, marked on the chart; the median year is 41.7 C (107.1 F). 35404550200020102020Record: 46.7 C (116.1 F) in 1994
The hottest day of the year at Lake Alan Henry, 1994 to 2026. The record is 46.7 C (116.1 F) in 1994, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at Lake Alan Henry by year
YearHottest day (TXx)
199446.7 C (116.1 F)
199542.2 C (108.0 F)
199640.6 C (105.1 F)
199738.9 C (102.0 F)
199843.3 C (109.9 F)
199940.0 C (104.0 F)
200043.3 C (109.9 F)
200140.6 C (105.1 F)
200238.3 C (100.9 F)
200341.1 C (106.0 F)
200437.8 C (100.0 F)
200540.0 C (104.0 F)
200641.7 C (107.1 F)
200736.1 C (97.0 F)
200839.4 C (102.9 F)
200940.0 C (104.0 F)
201040.6 C (105.1 F)
201144.4 C (111.9 F)
201241.7 C (107.1 F)
201342.8 C (109.0 F)
201440.0 C (104.0 F)
201540.0 C (104.0 F)
201642.8 C (109.0 F)
201743.3 C (109.9 F)
201843.9 C (111.0 F)
201945.6 C (114.1 F)
202045.6 C (114.1 F)
202140.0 C (104.0 F)
202243.3 C (109.9 F)
202344.4 C (111.9 F)
202443.3 C (109.9 F)
202541.1 C (106.0 F)
202641.7 C (107.1 F)

Coldest night (TNn)

Coldest night (TNn) at Lake Alan Henry by year The coldest night of the year at Lake Alan Henry, 1994 to 2026. The record is -20.6 C (-5.1 F) in 2021, marked on the chart; the median year is -12.2 C (10.0 F). -25-20-15-10-50200020102020Record: -20.6 C (-5.1 F) in 2021
The coldest night of the year at Lake Alan Henry, 1994 to 2026. The record is -20.6 C (-5.1 F) in 2021, marked on the chart; the median year is -12.2 C (10.0 F).
Coldest night (TNn) at Lake Alan Henry by year
YearColdest night (TNn)
1994-3.3 C (26.1 F)
1995-9.4 C (15.1 F)
1996-13.3 C (8.1 F)
1997-12.2 C (10.0 F)
1998-12.2 C (10.0 F)
1999-8.9 C (16.0 F)
2000-9.4 C (15.1 F)
2001-6.7 C (19.9 F)
2002-10.0 C (14.0 F)
2003-9.4 C (15.1 F)
2004-12.2 C (10.0 F)
2005-14.4 C (6.1 F)
2006-8.9 C (16.0 F)
2007-11.1 C (12.0 F)
2008-10.0 C (14.0 F)
2009-12.2 C (10.0 F)
2010-11.1 C (12.0 F)
2011-15.0 C (5.0 F)
2012-8.9 C (16.0 F)
2013-12.8 C (9.0 F)
2014-14.4 C (6.1 F)
2015-11.1 C (12.0 F)
2016-13.3 C (8.1 F)
2017-12.2 C (10.0 F)
2018-15.6 C (3.9 F)
2019-10.0 C (14.0 F)
2020-13.3 C (8.1 F)
2021-20.6 C (-5.1 F)
2022-15.6 C (3.9 F)
2023-8.3 C (17.1 F)
2024-15.0 C (5.0 F)
2025-13.9 C (7.0 F)
2026-18.3 C (-0.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Lake Alan Henry by year The wettest day of the year at Lake Alan Henry, 1994 to 2026. The record is 113.0 mm (4.4 in) in 2000, marked on the chart; the median year is 55.6 mm (2.2 in). 0255075100125200020102020Record: 113.0 mm (4.4 in) in 2000
The wettest day of the year at Lake Alan Henry, 1994 to 2026. The record is 113.0 mm (4.4 in) in 2000, marked on the chart; the median year is 55.6 mm (2.2 in).
Wettest day (Rx1day) at Lake Alan Henry by year
YearWettest day (Rx1day)
199441.1 mm (1.6 in)
199547.0 mm (1.9 in)
199636.8 mm (1.4 in)
199759.7 mm (2.4 in)
199824.1 mm (0.9 in)
199970.6 mm (2.8 in)
2000113.0 mm (4.4 in)
200149.5 mm (1.9 in)
200233.8 mm (1.3 in)
200357.2 mm (2.3 in)
2004103.6 mm (4.1 in)
200548.5 mm (1.9 in)
200685.3 mm (3.4 in)
200777.5 mm (3.1 in)
200843.4 mm (1.7 in)
200966.0 mm (2.6 in)
201084.3 mm (3.3 in)
201115.7 mm (0.6 in)
201246.0 mm (1.8 in)
201362.7 mm (2.5 in)
201447.2 mm (1.9 in)
201591.7 mm (3.6 in)
201642.9 mm (1.7 in)
201743.4 mm (1.7 in)
201855.9 mm (2.2 in)
2019105.2 mm (4.1 in)
202030.2 mm (1.2 in)
202187.1 mm (3.4 in)
2022100.8 mm (4.0 in)
202355.6 mm (2.2 in)
202464.5 mm (2.5 in)
202547.2 mm (1.9 in)
202639.1 mm (1.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Lake Alan Henry by year The wettest five days of the year at Lake Alan Henry, 1994 to 2026. The record is 222.7 mm (8.8 in) in 2004, marked on the chart; the median year is 87.0 mm (3.4 in). 050100150200250200020102020Record: 222.7 mm (8.8 in) in 2004
The wettest five days of the year at Lake Alan Henry, 1994 to 2026. The record is 222.7 mm (8.8 in) in 2004, marked on the chart; the median year is 87.0 mm (3.4 in).
Wettest five days (Rx5day) at Lake Alan Henry by year
YearWettest five days (Rx5day)
199492.2 mm (3.6 in)
199580.6 mm (3.2 in)
199662.4 mm (2.5 in)
199772.7 mm (2.9 in)
199833.8 mm (1.3 in)
199987.0 mm (3.4 in)
2000141.9 mm (5.6 in)
2001108.2 mm (4.3 in)
200256.7 mm (2.2 in)
200386.9 mm (3.4 in)
2004222.7 mm (8.8 in)
2005125.2 mm (4.9 in)
2006116.4 mm (4.6 in)
200780.0 mm (3.1 in)
200884.4 mm (3.3 in)
200988.3 mm (3.5 in)
2010129.3 mm (5.1 in)
201126.4 mm (1.0 in)
201279.5 mm (3.1 in)
201385.6 mm (3.4 in)
201495.5 mm (3.8 in)
201591.7 mm (3.6 in)
201694.6 mm (3.7 in)
201760.4 mm (2.4 in)
201889.9 mm (3.5 in)
2019107.2 mm (4.2 in)
202050.5 mm (2.0 in)
2021152.6 mm (6.0 in)
2022111.7 mm (4.4 in)
202376.4 mm (3.0 in)
2024125.0 mm (4.9 in)
202547.2 mm (1.9 in)
202661.2 mm (2.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Lake Alan Henry by year The longest dry spell of the year at Lake Alan Henry, 1994 to 2026. The record is 101 days in 2011, marked on the chart; the median year is 46 days. 20406080100120200020102020Record: 101 days in 2011
The longest dry spell of the year at Lake Alan Henry, 1994 to 2026. The record is 101 days in 2011, marked on the chart; the median year is 46 days.
Longest dry spell (CDD) at Lake Alan Henry by year
YearLongest dry spell (CDD)
199437 days
199536 days
199684 days
199735 days
199832 days
199962 days
200061 days
200134 days
200240 days
200347 days
200447 days
200552 days
200654 days
200736 days
200877 days
200939 days
201041 days
2011101 days
201233 days
201342 days
201477 days
201538 days
201644 days
201742 days
201844 days
201958 days
202046 days
202155 days
202236 days
202354 days
202454 days
202562 days
202647 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

30 years with a frost

Across 30 years with a frost, the median last spring frost at Lake Alan Henry falls on 27 March and the median first autumn frost on 12 November, which leaves a median of 225 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 Lake Alan Henry
MeasureMedian, all yearsEarliest periodRecent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost27 Marchn/a27 Marchn/a+0.4 days per decade
First autumn frost12 Novembern/a12 Novembern/a-4.3 days per decade
Growing days225 daysn/a225 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.

Rainfall Return Levels

31 years, 1995 to 2025

A day with at least 57.8 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 136.7 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Lake Alan Henry: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years57.8 mm (2.3 in)
5 years81.3 mm (3.2 in)
10 years95.8 mm (3.8 in)
25 years113.1 mm (4.5 in)
50 years125.3 mm (4.9 in)Longer than the 31 years of record
100 years136.7 mm (5.4 in)Longer than the 31 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, 31 years of values from 1995 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: 113.0 mm (4.4 in) in 2000; 105.2 mm (4.1 in) in 2019; 103.6 mm (4.1 in) in 2004.

Download the Data

  • Data for Lake Alan Henry standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Lake Alan Henry 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

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