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Beltzville Dam Weather Records (USC00360560)

Record envelope, standing records and threshold days for Beltzville Dam (USC00360560), Pennsylvania, United States, with 56 years of record.

Key Facts for Beltzville Dam

  • Beltzville Dam (USC00360560) is a weather station in Pennsylvania, United States at 40.86 latitude and -75.64 longitude, 225 m (738 ft) above sea level.
  • The station reports from 1971 to 2026, 56 years of record.
  • 1,464 records set at Beltzville Dam still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Beltzville Dam set a daily record precipitation of 63.2 mm (2.5 in) on 13 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Pennsylvania, United States, 40.86 latitude, -75.64 longitude.
  • Elevation: 225 m (738 ft).
  • Period of record: 1971 to 2026, 56 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

13 days at or beyond a record
Daily record high and record low at Beltzville Dam, with 2026 drawn through them The band shows the record high and record low for each calendar day at Beltzville Dam. The lines show the 2026 daily maximum and minimum. 13 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 Beltzville Dam. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Beltzville Dam, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.0 C (68.0 F)-30.0 C (-22.0 F)8.3 C (46.9 F)-20.6 C (-5.1 F)
Feb24.4 C (75.9 F)-26.1 C (-15.0 F)8.9 C (48.0 F)-20.0 C (-4.0 F)
Mar29.4 C (84.9 F)-21.1 C (-6.0 F)25.6 C (78.1 F)-8.9 C (16.0 F)
Apr33.3 C (91.9 F)-10.0 C (14.0 F)30.6 C (87.1 F)-4.4 C (24.1 F)
May34.4 C (93.9 F)-4.4 C (24.1 F)33.9 C (93.0 F)2.2 C (36.0 F)
Jun35.6 C (96.1 F)1.1 C (34.0 F)31.7 C (89.1 F)7.2 C (45.0 F)
Jul38.3 C (100.9 F)3.9 C (39.0 F)36.1 C (97.0 F)11.1 C (52.0 F)
Aug37.2 C (99.0 F)1.7 C (35.1 F)31.1 C (88.0 F)11.7 C (53.1 F)
Sep35.6 C (96.1 F)-2.8 C (27.0 F)30.6 C (87.1 F)6.7 C (44.1 F)
Oct31.1 C (88.0 F)-10.6 C (12.9 F)26.7 C (80.1 F)2.8 C (37.0 F)
Nov27.8 C (82.0 F)-15.6 C (3.9 F)n/an/a
Dec21.7 C (71.1 F)-24.4 C (-11.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Beltzville Dam by the year they were set 1,464 records at Beltzville Dam still stand. 1976 holds the most, with 68. 0204060801971: 71972: 341973: 341974: 451975: 281976: 681977: 441978: 271979: 641980: 451981: 431982: 341983: 241984: 331985: 241986: 191987: 201988: 371989: 331990: 341991: 331992: 171993: 261994: 201995: 221996: 221997: 131998: 241999: 182000: 222001: 232002: 262003: 152004: 142005: 252006: 272007: 232008: 112009: 142010: 272011: 212012: 192013: 182014: 242015: 342016: 182017: 202018: 272019: 142020: 182021: 162022: 242023: 242024: 232025: 202026: 251971197719831989199520012007201320192025
1,464 records at Beltzville Dam still stand. 1976 holds the most, with 68.
Standing records at Beltzville Dam by the year they were set
Year setStanding records
19717
197234
197334
197445
197528
197668
197744
197827
197964
198045
198143
198234
198324
198433
198524
198619
198720
198837
198933
199034
199133
199217
199326
199420
199522
199622
199713
199824
199918
200022
200123
200226
200315
200414
200525
200627
200723
200811
200914
201027
201121
201219
201318
201424
201534
201618
201720
201827
201914
202018
202116
202224
202324
202423
202520
202625

All-Time Record Progression

2 new records
When Beltzville Dam set new all-time records 2 all-time records were set at Beltzville Dam between 11 February 2010 and 18 February 2014. Each dot is a new record. Record snow depth11 February 2010: Record snow depth 35.6 cm (14.0 in)18 February 2014: Record snow depth 43.2 cm (17.0 in)20102015
2 all-time records were set at Beltzville Dam between 11 February 2010 and 18 February 2014. Each dot is a new record.
When Beltzville Dam set new all-time records
DateKindDetail
2010-02-11Record snow depthRecord snow depth 35.6 cm (14.0 in)
2014-02-18Record snow depthRecord snow depth 43.2 cm (17.0 in)

Wettest Day of Each Month

Sep: 153.7 mm (6.1 in)
Record daily precipitation for each month at Beltzville Dam The wettest day on record for each calendar month at Beltzville Dam. The most was 153.7 mm (6.1 in) on 27 September 1985. 050100150200 Jan: 69.1 mm (2.7 in), 27 January 1976 Jan Feb: 52.6 mm (2.1 in), 25 February 2016 Feb Mar: 84.3 mm (3.3 in), 11 March 2011 Mar Apr: 112.8 mm (4.4 in), 16 April 1983 Apr May: 62.2 mm (2.4 in), 6 May 1989 May Jun: 97.8 mm (3.9 in), 28 June 1975 Jun Jul: 123.4 mm (4.9 in), 26 July 2011 Jul Aug: 147.1 mm (5.8 in), 31 August 1981 Aug Sep: 153.7 mm (6.1 in), 27 September 1985 Sep Oct: 145.3 mm (5.7 in), 1 October 2010 Oct Nov: 78.0 mm (3.1 in), 9 November 1996 Nov Dec: 94.2 mm (3.7 in), 18 December 2000 Dec
The wettest day on record for each calendar month at Beltzville Dam. The most was 153.7 mm (6.1 in) on 27 September 1985.
Record daily precipitation for each month at Beltzville Dam
MonthRecord daily precipitation (mm)Date
Jan69.1 mm (2.7 in)27 January 1976
Feb52.6 mm (2.1 in)25 February 2016
Mar84.3 mm (3.3 in)11 March 2011
Apr112.8 mm (4.4 in)16 April 1983
May62.2 mm (2.4 in)6 May 1989
Jun97.8 mm (3.9 in)28 June 1975
Jul123.4 mm (4.9 in)26 July 2011
Aug147.1 mm (5.8 in)31 August 1981
Sep153.7 mm (6.1 in)27 September 1985
Oct145.3 mm (5.7 in)1 October 2010
Nov78.0 mm (3.1 in)9 November 1996
Dec94.2 mm (3.7 in)18 December 2000

Period of Record Coverage

1971 to 2026
Days with data per year at Beltzville Dam 56 years of record at Beltzville Dam, 1971 to 2026. 44 years have data for under 90 percent of days and are left out of rankings: 1971, 1972, 1978, 1982, 1983, 1984, 1985, 1986 and others. 1971: 102 of 365 days1972: 310 of 366 days1973: 350 of 365 days1974: 364 of 365 days1975: 365 of 365 days1976: 347 of 366 days1977: 345 of 365 days1978: 326 of 365 days1979: 344 of 365 days1980: 362 of 366 days1981: 336 of 365 days1982: 294 of 365 days1983: 271 of 365 days1984: 252 of 366 days1985: 245 of 365 days1986: 246 of 365 days1987: 252 of 365 days1988: 248 of 366 days1989: 232 of 365 days1990: 246 of 365 days1991: 250 of 365 days1992: 232 of 366 days1993: 251 of 365 days1994: 231 of 365 days1995: 244 of 365 days1996: 253 of 366 days1997: 247 of 365 days1998: 250 of 365 days1999: 249 of 365 days2000: 249 of 366 days2001: 248 of 365 days2002: 246 of 365 days2003: 245 of 365 days2004: 246 of 366 days2005: 244 of 365 days2006: 245 of 365 days2007: 247 of 365 days2008: 246 of 366 days2009: 244 of 365 days2010: 274 of 365 days2011: 248 of 365 days2012: 240 of 366 days2013: 233 of 365 days2014: 237 of 365 days2015: 249 of 365 days2016: 243 of 366 days2017: 244 of 365 days2018: 244 of 365 days2019: 245 of 365 days2020: 249 of 366 days2021: 256 of 365 days2022: 365 of 365 days2023: 364 of 365 days2024: 365 of 366 days2025: 364 of 365 days2026: 275 of 365 days19801990200020102020
56 years of record at Beltzville Dam, 1971 to 2026. 44 years have data for under 90 percent of days and are left out of rankings: 1971, 1972, 1978, 1982, 1983, 1984, 1985, 1986 and others.
Days with data per year at Beltzville Dam
YearDays with dataShare of yearComplete
197110228%No
197231085%No
197335096%Yes
1974364100%Yes
1975365100%Yes
197634795%Yes
197734595%Yes
197832689%No
197934494%Yes
198036299%Yes
198133692%Yes
198229481%No
198327174%No
198425269%No
198524567%No
198624667%No
198725269%No
198824868%No
198923264%No
199024667%No
199125068%No
199223263%No
199325169%No
199423163%No
199524467%No
199625369%No
199724768%No
199825068%No
199924968%No
200024968%No
200124868%No
200224667%No
200324567%No
200424667%No
200524467%No
200624567%No
200724768%No
200824667%No
200924467%No
201027475%No
201124868%No
201224066%No
201323364%No
201423765%No
201524968%No
201624366%No
201724467%No
201824467%No
201924567%No
202024968%No
202125670%No
2022365100%Yes
2023364100%Yes
2024365100%Yes
2025364100%Yes
202627575%No

Latest Records

20
Latest records at Beltzville Dam
DateStationRecordValueBeat old record byOld record stoodSignificance
13 October 2026Beltzville Dam, USdaily rain (Provisional)63.2 mm (2.5 in)9.4 mm (0.37 in)24 years17 of 100 (Routine)
3 October 2026Beltzville Dam, USdaily high min (Provisional)15.6 C (60.1 F)0.6 C (1.1 F)55 years22 of 100 (Routine)
2 October 2026Beltzville Dam, USdaily high min (Tie, Provisional)15.6 C (60.1 F)tie8 years1 of 100 (Routine)
18 September 2026Beltzville Dam, USdaily high min (Provisional)18.9 C (66.0 F)2.2 C (4.0 F)39 years20 of 100 (Routine)
5 September 2026Beltzville Dam, USdaily high min (Provisional)20.6 C (69.1 F)1.2 C (2.2 F)13 years11 of 100 (Routine)
4 September 2026Beltzville Dam, USdaily high min (Provisional)18.9 C (66.0 F)0.6 C (1.1 F)52 years21 of 100 (Routine)
2 September 2026Beltzville Dam, USdaily high min (Tie, Provisional)19.4 C (66.9 F)tie44 years4 of 100 (Routine)
7 August 2026Beltzville Dam, USdaily high min21.1 C (70.0 F)1.1 C (2.0 F)19 years13 of 100 (Routine)
29 July 2026Beltzville Dam, USdaily rain30.2 mm (1.2 in)17.0 mm (0.7 in)40 years27 of 100 (Routine)
19 July 2026Beltzville Dam, USdaily low max24.4 C (75.9 F)1.2 C (2.2 F)41 years20 of 100 (Routine)
7 July 2026Beltzville Dam, USdaily low max20.6 C (69.1 F)1.1 C (2.0 F)53 years24 of 100 (Routine)
4 July 2026Beltzville Dam, USdaily high max35.6 C (96.1 F)3.9 C (7.0 F)52 years31 of 100 (Routine)
4 July 2026Beltzville Dam, USdaily high min23.3 C (73.9 F)3.9 C (7.0 F)52 years31 of 100 (Routine)
3 July 2026Beltzville Dam, USdaily high max36.1 C (97.0 F)1.7 C (3.1 F)24 years17 of 100 (Routine)
3 July 2026Beltzville Dam, USdaily high min23.9 C (75.0 F)2.2 C (4.0 F)12 years14 of 100 (Routine)
2 July 2026Beltzville Dam, USdaily high min22.2 C (72.0 F)1.6 C (2.9 F)12 years12 of 100 (Routine)
2 July 2026Beltzville Dam, USdaily high max34.4 C (93.9 F)0.5 C (0.9 F)13 years10 of 100 (Routine)
28 June 2026Beltzville Dam, USdaily low max19.4 C (66.9 F)0.6 C (1.1 F)8 years8 of 100 (Routine)
13 June 2026Beltzville Dam, USdaily high min (Tie)20.0 C (68.0 F)tie16 years2 of 100 (Routine)
12 June 2026Beltzville Dam, USdaily high min19.4 C (66.9 F)0.5 C (0.9 F)52 years21 of 100 (Routine)

Climate Trend

14 complete years, 1973 to 2025
Annual mean temperature at Beltzville Dam as warming stripes, 1973 to 2025 One stripe for each of 14 complete years at Beltzville Dam, 1973 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1976, at 7.8 C (46.1 F), and the warmest was 2024, at 11.0 C (51.8 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1973: 9.9 C, +0.6 C from the station mean1974: 9.2 C, -0.1 C from the station mean1975: 9.4 C, 0.0 C from the station mean1976: 7.8 C, -1.5 C from the station mean1977: 8.4 C, -1.0 C from the station mean1979: 8.3 C, -1.0 C from the station mean1980: 8.9 C, -0.5 C from the station mean1981: 8.6 C, -0.7 C from the station mean1982: 8.9 C, -0.4 C from the station mean1983: 9.7 C, +0.4 C from the station mean2022: 9.7 C, +0.4 C from the station mean2023: 10.8 C, +1.4 C from the station mean2024: 11.0 C, +1.7 C from the station mean2025: 10.0 C, +0.7 C from the station mean19731980198519901995200020052010201520202025
One stripe for each of 14 complete years at Beltzville Dam, 1973 to 2025. Blue stripes are years cooler than the station's own mean of 9.3 C (48.8 F); red stripes are warmer. The coolest year was 1976, at 7.8 C (46.1 F), and the warmest was 2024, at 11.0 C (51.8 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Beltzville Dam as warming stripes, 1973 to 2025
YearAnnual mean temperatureDifference from the station mean
19739.9 C+0.61 C
19749.2 C-0.14 C
19759.4 C+0.03 C
19767.8 C-1.51 C
19778.4 C-0.97 C
19798.3 C-1.01 C
19808.9 C-0.46 C
19818.6 C-0.75 C
19828.9 C-0.41 C
19839.7 C+0.38 C
20229.7 C+0.39 C
202310.8 C+1.43 C
202411.0 C+1.66 C
202510.0 C+0.70 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1971 to 2026
Yearly extremes at Beltzville Dam: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.3 C (100.9 F)198833.9 C (93.0 F)56
Coldest night (TNn)-30.0 C (-22.0 F)1994-19.4 C (-2.9 F)56
Wettest day (Rx1day)153.7 mm (6.1 in)198575.2 mm (3.0 in)56
Wettest five days (Rx5day)201.2 mm (7.9 in)199379.2 mm (3.1 in)54
Longest dry spell (CDD)34 days198015 days56

Hottest day (TXx)

Hottest day (TXx) at Beltzville Dam by year The hottest day of the year at Beltzville Dam, 1971 to 2026. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F). 30323436384019801990200020102020Record: 38.3 C (100.9 F) in 1988
The hottest day of the year at Beltzville Dam, 1971 to 2026. The record is 38.3 C (100.9 F) in 1988, marked on the chart; the median year is 33.9 C (93.0 F).
Hottest day (TXx) at Beltzville Dam by year
YearHottest day (TXx)
197131.7 C (89.1 F)
197233.9 C (93.0 F)
197334.4 C (93.9 F)
197433.3 C (91.9 F)
197535.6 C (96.1 F)
197633.3 C (91.9 F)
197734.4 C (93.9 F)
197832.8 C (91.0 F)
197932.8 C (91.0 F)
198037.8 C (100.0 F)
198133.9 C (93.0 F)
198233.9 C (93.0 F)
198335.6 C (96.1 F)
198433.9 C (93.0 F)
198534.4 C (93.9 F)
198635.0 C (95.0 F)
198733.9 C (93.0 F)
198838.3 C (100.9 F)
198933.9 C (93.0 F)
199036.1 C (97.0 F)
199137.2 C (99.0 F)
199232.8 C (91.0 F)
199335.0 C (95.0 F)
199433.9 C (93.0 F)
199536.1 C (97.0 F)
199634.4 C (93.9 F)
199735.0 C (95.0 F)
199831.7 C (89.1 F)
199936.7 C (98.1 F)
200032.2 C (90.0 F)
200135.6 C (96.1 F)
200237.2 C (99.0 F)
200333.3 C (91.9 F)
200431.7 C (89.1 F)
200536.7 C (98.1 F)
200635.6 C (96.1 F)
200733.9 C (93.0 F)
200833.9 C (93.0 F)
200932.2 C (90.0 F)
201037.2 C (99.0 F)
201138.3 C (100.9 F)
201233.9 C (93.0 F)
201334.4 C (93.9 F)
201431.7 C (89.1 F)
201532.8 C (91.0 F)
201633.9 C (93.0 F)
201732.8 C (91.0 F)
201833.9 C (93.0 F)
201933.3 C (91.9 F)
202033.3 C (91.9 F)
202133.9 C (93.0 F)
202233.9 C (93.0 F)
202333.3 C (91.9 F)
202434.4 C (93.9 F)
202536.1 C (97.0 F)
202636.1 C (97.0 F)

Coldest night (TNn)

Coldest night (TNn) at Beltzville Dam by year The coldest night of the year at Beltzville Dam, 1971 to 2026. The record is -30.0 C (-22.0 F) in 1994, marked on the chart; the median year is -19.4 C (-2.9 F). -30-25-20-15-1019801990200020102020Record: -30.0 C (-22.0 F) in 1994
The coldest night of the year at Beltzville Dam, 1971 to 2026. The record is -30.0 C (-22.0 F) in 1994, marked on the chart; the median year is -19.4 C (-2.9 F).
Coldest night (TNn) at Beltzville Dam by year
YearColdest night (TNn)
1971-12.8 C (9.0 F)
1972-19.4 C (-2.9 F)
1973-19.4 C (-2.9 F)
1974-16.7 C (1.9 F)
1975-21.1 C (-6.0 F)
1976-24.4 C (-11.9 F)
1977-24.4 C (-11.9 F)
1978-22.2 C (-8.0 F)
1979-26.1 C (-15.0 F)
1980-24.4 C (-11.9 F)
1981-28.9 C (-20.0 F)
1982-29.4 C (-20.9 F)
1983-18.9 C (-2.0 F)
1984-25.6 C (-14.1 F)
1985-25.0 C (-13.0 F)
1986-19.4 C (-2.9 F)
1987-21.1 C (-6.0 F)
1988-22.8 C (-9.0 F)
1989-19.4 C (-2.9 F)
1990-18.3 C (-0.9 F)
1991-17.2 C (1.0 F)
1992-16.7 C (1.9 F)
1993-20.0 C (-4.0 F)
1994-30.0 C (-22.0 F)
1995-18.9 C (-2.0 F)
1996-22.2 C (-8.0 F)
1997-18.9 C (-2.0 F)
1998-15.6 C (3.9 F)
1999-17.2 C (1.0 F)
2000-17.2 C (1.0 F)
2001-15.6 C (3.9 F)
2002-15.6 C (3.9 F)
2003-20.0 C (-4.0 F)
2004-19.4 C (-2.9 F)
2005-20.6 C (-5.1 F)
2006-12.8 C (9.0 F)
2007-17.2 C (1.0 F)
2008-15.6 C (3.9 F)
2009-21.7 C (-7.1 F)
2010-15.6 C (3.9 F)
2011-21.7 C (-7.1 F)
2012-14.4 C (6.1 F)
2013-15.6 C (3.9 F)
2014-20.6 C (-5.1 F)
2015-23.9 C (-11.0 F)
2016-18.9 C (-2.0 F)
2017-15.0 C (5.0 F)
2018-20.0 C (-4.0 F)
2019-21.7 C (-7.1 F)
2020-14.4 C (6.1 F)
2021-13.3 C (8.1 F)
2022-18.3 C (-0.9 F)
2023-16.7 C (1.9 F)
2024-18.3 C (-0.9 F)
2025-22.2 C (-8.0 F)
2026-20.6 C (-5.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Beltzville Dam by year The wettest day of the year at Beltzville Dam, 1971 to 2026. The record is 153.7 mm (6.1 in) in 1985, marked on the chart; the median year is 75.2 mm (3.0 in). 05010015020019801990200020102020Record: 153.7 mm (6.1 in) in 1985
The wettest day of the year at Beltzville Dam, 1971 to 2026. The record is 153.7 mm (6.1 in) in 1985, marked on the chart; the median year is 75.2 mm (3.0 in).
Wettest day (Rx1day) at Beltzville Dam by year
YearWettest day (Rx1day)
197133.3 mm (1.3 in)
197272.9 mm (2.9 in)
197374.4 mm (2.9 in)
197461.0 mm (2.4 in)
197597.8 mm (3.9 in)
197669.1 mm (2.7 in)
197759.9 mm (2.4 in)
1978116.8 mm (4.6 in)
197972.4 mm (2.9 in)
198053.3 mm (2.1 in)
1981147.1 mm (5.8 in)
198261.5 mm (2.4 in)
1983112.8 mm (4.4 in)
198458.4 mm (2.3 in)
1985153.7 mm (6.1 in)
198658.9 mm (2.3 in)
1987114.3 mm (4.5 in)
1988108.0 mm (4.3 in)
198962.2 mm (2.4 in)
199088.6 mm (3.5 in)
199138.4 mm (1.5 in)
199248.8 mm (1.9 in)
1993100.6 mm (4.0 in)
199452.1 mm (2.1 in)
199594.7 mm (3.7 in)
199686.4 mm (3.4 in)
199799.1 mm (3.9 in)
199847.5 mm (1.9 in)
1999119.1 mm (4.7 in)
2000114.3 mm (4.5 in)
2001121.9 mm (4.8 in)
200258.4 mm (2.3 in)
200384.3 mm (3.3 in)
2004102.1 mm (4.0 in)
200555.9 mm (2.2 in)
200690.7 mm (3.6 in)
200765.0 mm (2.6 in)
200869.3 mm (2.7 in)
200975.2 mm (3.0 in)
2010145.3 mm (5.7 in)
2011123.4 mm (4.9 in)
2012141.2 mm (5.6 in)
201377.2 mm (3.0 in)
201475.2 mm (3.0 in)
201598.8 mm (3.9 in)
201687.1 mm (3.4 in)
201746.5 mm (1.8 in)
201850.3 mm (2.0 in)
201948.8 mm (1.9 in)
2020103.1 mm (4.1 in)
2021107.2 mm (4.2 in)
202263.2 mm (2.5 in)
202375.4 mm (3.0 in)
202469.1 mm (2.7 in)
202547.0 mm (1.9 in)
202663.2 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Beltzville Dam by year The wettest five days of the year at Beltzville Dam, 1971 to 2026. The record is 201.2 mm (7.9 in) in 1993, marked on the chart; the median year is 79.2 mm (3.1 in). 05010015020025019801990200020102020Record: 201.2 mm (7.9 in) in 1993
The wettest five days of the year at Beltzville Dam, 1971 to 2026. The record is 201.2 mm (7.9 in) in 1993, marked on the chart; the median year is 79.2 mm (3.1 in).
Wettest five days (Rx5day) at Beltzville Dam by year
YearWettest five days (Rx5day)
197162.2 mm (2.4 in)
1972131.1 mm (5.2 in)
197394.8 mm (3.7 in)
197491.3 mm (3.6 in)
1975134.6 mm (5.3 in)
197697.6 mm (3.8 in)
197795.7 mm (3.8 in)
1978137.1 mm (5.4 in)
1979134.7 mm (5.3 in)
198065.2 mm (2.6 in)
1981153.5 mm (6.0 in)
198276.8 mm (3.0 in)
1983145.8 mm (5.7 in)
198478.8 mm (3.1 in)
1985157.2 mm (6.2 in)
198683.3 mm (3.3 in)
198764.8 mm (2.6 in)
1988124.8 mm (4.9 in)
1989136.9 mm (5.4 in)
199091.1 mm (3.6 in)
199138.4 mm (1.5 in)
199256.9 mm (2.2 in)
1993201.2 mm (7.9 in)
199486.9 mm (3.4 in)
199577.7 mm (3.1 in)
1996138.2 mm (5.4 in)
199779.5 mm (3.1 in)
199870.1 mm (2.8 in)
1999166.3 mm (6.5 in)
2000160.3 mm (6.3 in)
2001123.7 mm (4.9 in)
2002112.5 mm (4.4 in)
2003104.1 mm (4.1 in)
2004102.1 mm (4.0 in)
200551.3 mm (2.0 in)
200657.4 mm (2.3 in)
200771.7 mm (2.8 in)
200836.3 mm (1.4 in)
200944.5 mm (1.8 in)
201078.7 mm (3.1 in)
2011130.7 mm (5.1 in)
201247.1 mm (1.9 in)
201341.6 mm (1.6 in)
20148.9 mm (0.35 in)
201516.6 mm (0.7 in)
201657.2 mm (2.3 in)
201714.7 mm (0.6 in)
2018n/a
201920.8 mm (0.8 in)
2020n/a
2021116.9 mm (4.6 in)
202267.2 mm (2.6 in)
202378.4 mm (3.1 in)
202470.9 mm (2.8 in)
202553.9 mm (2.1 in)
202655.4 mm (2.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Beltzville Dam by year The longest dry spell of the year at Beltzville Dam, 1971 to 2026. The record is 34 days in 1980, marked on the chart; the median year is 15 days. 01020304019801990200020102020Record: 34 days in 1980
The longest dry spell of the year at Beltzville Dam, 1971 to 2026. The record is 34 days in 1980, marked on the chart; the median year is 15 days.
Longest dry spell (CDD) at Beltzville Dam by year
YearLongest dry spell (CDD)
197114 days
197216 days
197316 days
197422 days
197513 days
197621 days
197715 days
197819 days
197912 days
198034 days
198115 days
198216 days
198320 days
198417 days
198517 days
198626 days
198726 days
198831 days
198917 days
19909 days
199121 days
199217 days
199313 days
199418 days
199513 days
199612 days
199714 days
199819 days
199916 days
200021 days
200124 days
200211 days
200311 days
200414 days
200515 days
200617 days
200711 days
200821 days
200913 days
201024 days
20114 days
201211 days
20134 days
20145 days
20155 days
20165 days
20174 days
20184 days
20194 days
20204 days
202110 days
202212 days
202317 days
202416 days
202515 days
202620 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.

Download the Data

  • Data for Beltzville Dam standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Beltzville Dam 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).