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Harrisburg 12WNW Weather Records (USC00253605)

Record envelope, standing records and threshold days for Harrisburg 12WNW (USC00253605), Nebraska, United States, with 116 years of record.

Key Facts for Harrisburg 12WNW

  • Harrisburg 12WNW (USC00253605) is a weather station in Nebraska, United States at 41.63 latitude and -103.95 longitude, 1,387 m (4,550 ft) above sea level.
  • The station reports from 1911 to 2026, 116 years of record.
  • 1,464 records set at Harrisburg 12WNW still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Harrisburg 12WNW tied a daily record high maximum temperature of 36.1 C (97.0 F) on 29 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Nebraska, United States, 41.63 latitude, -103.95 longitude.
  • Elevation: 1,387 m (4,550 ft).
  • Period of record: 1911 to 2026, 116 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

22 days at or beyond a record
Daily record high and record low at Harrisburg 12WNW, with 2026 drawn through them The band shows the record high and record low for each calendar day at Harrisburg 12WNW. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Harrisburg 12WNW. The lines show the 2026 daily maximum and minimum. 22 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Harrisburg 12WNW, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.3 C (73.9 F)-37.2 C (-35.0 F)17.2 C (63.0 F)-30.6 C (-23.1 F)
Feb25.6 C (78.1 F)-35.0 C (-31.0 F)21.7 C (71.1 F)-23.9 C (-11.0 F)
Mar32.8 C (91.0 F)-30.6 C (-23.1 F)32.8 C (91.0 F)-17.2 C (1.0 F)
Apr31.7 C (89.1 F)-26.7 C (-16.1 F)30.0 C (86.0 F)-7.2 C (19.0 F)
May36.1 C (97.0 F)-11.1 C (12.0 F)32.2 C (90.0 F)-5.0 C (23.0 F)
Jun40.6 C (105.1 F)-3.3 C (26.1 F)36.1 C (97.0 F)2.2 C (36.0 F)
Jul40.6 C (105.1 F)1.7 C (35.1 F)40.6 C (105.1 F)8.9 C (48.0 F)
Aug41.1 C (106.0 F)0.0 C (32.0 F)41.1 C (106.0 F)5.6 C (42.1 F)
Sep38.3 C (100.9 F)-10.6 C (12.9 F)n/an/a
Oct32.2 C (90.0 F)-23.3 C (-9.9 F)n/an/a
Nov27.2 C (81.0 F)-30.6 C (-23.1 F)n/an/a
Dec24.4 C (75.9 F)-42.2 C (-44.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Harrisburg 12WNW by the year they were set 1,464 records at Harrisburg 12WNW still stand. 2012 holds the most, with 41. 02040601961: 71962: 281963: 321964: 231965: 281966: 201967: 251968: 131969: 291970: 151971: 151972: 271973: 241974: 191975: 211976: 151977: 221978: 151979: 201980: 211981: 181982: 271983: 231984: 201985: 311986: 231987: 161988: 221989: 361990: 381991: 151992: 201993: 171994: 91995: 241996: 251997: 221998: 241999: 192000: 262001: 162002: 302003: 222004: 132005: 242006: 302007: 212008: 162009: 302010: 142011: 142012: 412013: 202014: 282015: 202016: 212017: 242018: 182019: 152020: 232021: 222022: 322023: 152024: 222025: 242026: 351961196819751982198919962003201020172024
1,464 records at Harrisburg 12WNW still stand. 2012 holds the most, with 41.
Standing records at Harrisburg 12WNW by the year they were set
Year setStanding records
19617
196228
196332
196423
196528
196620
196725
196813
196929
197015
197115
197227
197324
197419
197521
197615
197722
197815
197920
198021
198118
198227
198323
198420
198531
198623
198716
198822
198936
199038
199115
199220
199317
19949
199524
199625
199722
199824
199919
200026
200116
200230
200322
200413
200524
200630
200721
200816
200930
201014
201114
201241
201320
201428
201520
201621
201724
201818
201915
202023
202122
202232
202315
202422
202524
202635

All-Time Record Progression

3 new records
When Harrisburg 12WNW set new all-time records 3 all-time records were set at Harrisburg 12WNW between 16 July 2006 and 3 August 2026. Each dot is a new record. Record high maximum temperatureRecord high minimum temperature16 July 2006: Record high maximum temperature 40.6 C (105.1 F)25 July 2007: Record high minimum temperature 22.2 C (72.0 F)3 August 2026: Record high maximum temperature 41.1 C (106.0 F)2010201520202025
3 all-time records were set at Harrisburg 12WNW between 16 July 2006 and 3 August 2026. Each dot is a new record.
When Harrisburg 12WNW set new all-time records
DateKindDetail
2006-07-16Record high maximum temperatureRecord high maximum temperature 40.6 C (105.1 F)
2007-07-25Record high minimum temperatureRecord high minimum temperature 22.2 C (72.0 F)
2026-08-03Record high maximum temperatureRecord high maximum temperature 41.1 C (106.0 F)

Wettest Day of Each Month

May: 101.6 mm (4.0 in)
Record daily precipitation for each month at Harrisburg 12WNW The wettest day on record for each calendar month at Harrisburg 12WNW. The most was 101.6 mm (4.0 in) on 24 May 1933. 050100150 Jan: 19.8 mm (0.8 in), 4 January 1926 Jan Feb: 29.2 mm (1.1 in), 19 February 1912 Feb Mar: 50.0 mm (2.0 in), 15 March 2021 Mar Apr: 57.2 mm (2.3 in), 20 April 1933 Apr May: 101.6 mm (4.0 in), 24 May 1933 May Jun: 69.9 mm (2.8 in), 20 June 1986 Jun Jul: 74.9 mm (2.9 in), 26 July 2005 Jul Aug: 56.1 mm (2.2 in), 4 August 2005 Aug Sep: 68.8 mm (2.7 in), 2 September 1938 Sep Oct: 61.7 mm (2.4 in), 11 October 2013 Oct Nov: 37.6 mm (1.5 in), 7 November 1944 Nov Dec: 57.2 mm (2.3 in), 14 December 1925 Dec
The wettest day on record for each calendar month at Harrisburg 12WNW. The most was 101.6 mm (4.0 in) on 24 May 1933.
Record daily precipitation for each month at Harrisburg 12WNW
MonthRecord daily precipitation (mm)Date
Jan19.8 mm (0.8 in)4 January 1926
Feb29.2 mm (1.1 in)19 February 1912
Mar50.0 mm (2.0 in)15 March 2021
Apr57.2 mm (2.3 in)20 April 1933
May101.6 mm (4.0 in)24 May 1933
Jun69.9 mm (2.8 in)20 June 1986
Jul74.9 mm (2.9 in)26 July 2005
Aug56.1 mm (2.2 in)4 August 2005
Sep68.8 mm (2.7 in)2 September 1938
Oct61.7 mm (2.4 in)11 October 2013
Nov37.6 mm (1.5 in)7 November 1944
Dec57.2 mm (2.3 in)14 December 1925

Period of Record Coverage

1961 to 2026
Days with data per year at Harrisburg 12WNW 66 years of record at Harrisburg 12WNW, 1961 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1961, 2026. 1961: 151 of 365 days1962: 355 of 365 days1963: 365 of 365 days1964: 334 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 364 of 365 days1971: 364 of 365 days1972: 364 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 364 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 363 of 365 days1994: 364 of 365 days1995: 364 of 365 days1996: 364 of 366 days1997: 364 of 365 days1998: 362 of 365 days1999: 365 of 365 days2000: 365 of 366 days2001: 363 of 365 days2002: 365 of 365 days2003: 334 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 364 of 365 days2007: 364 of 365 days2008: 364 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: 365 of 366 days2017: 364 of 365 days2018: 363 of 365 days2019: 354 of 365 days2020: 366 of 366 days2021: 363 of 365 days2022: 365 of 365 days2023: 364 of 365 days2024: 356 of 366 days2025: 352 of 365 days2026: 242 of 365 days197019801990200020102020
66 years of record at Harrisburg 12WNW, 1961 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1961, 2026.
Days with data per year at Harrisburg 12WNW
YearDays with dataShare of yearComplete
196115141%No
196235597%Yes
1963365100%Yes
196433491%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970364100%Yes
1971364100%Yes
197236499%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982364100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987364100%Yes
1988366100%Yes
1989365100%Yes
1990364100%Yes
1991365100%Yes
1992366100%Yes
199336399%Yes
1994364100%Yes
1995364100%Yes
199636499%Yes
1997364100%Yes
199836299%Yes
1999365100%Yes
2000365100%Yes
200136399%Yes
2002365100%Yes
200333492%Yes
2004366100%Yes
2005365100%Yes
2006364100%Yes
2007364100%Yes
200836499%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016365100%Yes
2017364100%Yes
201836399%Yes
201935497%Yes
2020366100%Yes
202136399%Yes
2022365100%Yes
2023364100%Yes
202435697%Yes
202535296%Yes
202624266%No

Latest Records

20
Latest records at Harrisburg 12WNW
DateStationRecordValueBeat old record byOld record stoodSignificance
29 August 2026Harrisburg 12WNW, USdaily high max (Tie, Provisional)36.1 C (97.0 F)tie13 years2 of 100 (Routine)
11 August 2026Harrisburg 12WNW, USdaily high max (Tie)37.2 C (99.0 F)tie31 years3 of 100 (Routine)
10 August 2026Harrisburg 12WNW, USdaily high max37.2 C (99.0 F)0.5 C (0.9 F)25 years14 of 100 (Routine)
3 August 2026Harrisburg 12WNW, USall-time high max41.1 C (106.0 F)0.5 C (0.9 F)20 years33 of 100 (Routine)
28 July 2026Harrisburg 12WNW, USdaily high min20.6 C (69.1 F)2.3 C (4.1 F)51 years28 of 100 (Routine)
27 July 2026Harrisburg 12WNW, USdaily high max39.4 C (102.9 F)1.6 C (2.9 F)31 years18 of 100 (Routine)
27 July 2026Harrisburg 12WNW, USall-time high min (Tie)22.2 C (72.0 F)tie19 years7 of 100 (Routine)
26 July 2026Harrisburg 12WNW, USall-time high max (Tie)40.6 C (105.1 F)tie20 years8 of 100 (Routine)
19 July 2026Harrisburg 12WNW, USdaily high min (Tie)20.0 C (68.0 F)tie8 years2 of 100 (Routine)
7 July 2026Harrisburg 12WNW, USdaily high min20.6 C (69.1 F)2.8 C (5.0 F)19 years20 of 100 (Routine)
6 July 2026Harrisburg 12WNW, USdaily high min19.4 C (66.9 F)2.2 C (4.0 F)64 years32 of 100 (Routine)
26 June 2026Harrisburg 12WNW, USdaily rain32.0 mm (1.3 in)17.8 mm (0.7 in)44 years41 of 100 (Notable)
7 June 2026Harrisburg 12WNW, USdaily high min17.8 C (64.0 F)2.2 C (4.0 F)44 years24 of 100 (Routine)
29 May 2026Harrisburg 12WNW, USdaily high min13.3 C (55.9 F)0.5 C (0.9 F)23 years13 of 100 (Routine)
26 May 2026Harrisburg 12WNW, USdaily high min12.8 C (55.0 F)0.6 C (1.1 F)23 years13 of 100 (Routine)
25 May 2026Harrisburg 12WNW, USdaily high max (Tie)30.0 C (86.0 F)tie59 years5 of 100 (Routine)
19 May 2026Harrisburg 12WNW, USdaily low min-3.3 C (26.1 F)1.6 C (2.9 F)60 years27 of 100 (Routine)
14 May 2026Harrisburg 12WNW, USdaily high min16.1 C (61.0 F)3.3 C (5.9 F)12 years16 of 100 (Routine)
14 May 2026Harrisburg 12WNW, USdaily high max (Tie)32.2 C (90.0 F)tie19 years2 of 100 (Routine)
13 May 2026Harrisburg 12WNW, USdaily high min (Tie)9.4 C (48.9 F)tie48 years5 of 100 (Routine)

Climate Trend

61 complete years, 1962 to 2025
Annual mean temperature at Harrisburg 12WNW as warming stripes, 1962 to 2025 One stripe for each of 61 complete years at Harrisburg 12WNW, 1962 to 2025. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 1978, at 7.0 C (44.6 F), and the warmest was 2012, at 10.3 C (50.5 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1962: 8.1 C, -0.3 C from the station mean1963: 9.0 C, +0.6 C from the station mean1965: 7.9 C, -0.5 C from the station mean1966: 8.0 C, -0.5 C from the station mean1967: 7.9 C, -0.5 C from the station mean1968: 7.6 C, -0.9 C from the station mean1969: 8.2 C, -0.3 C from the station mean1970: 7.7 C, -0.7 C from the station mean1971: 7.7 C, -0.8 C from the station mean1972: 7.8 C, -0.6 C from the station mean1973: 7.4 C, -1.0 C from the station mean1974: 8.0 C, -0.4 C from the station mean1975: 7.5 C, -0.9 C from the station mean1976: 8.2 C, -0.3 C from the station mean1977: 8.7 C, +0.3 C from the station mean1978: 7.0 C, -1.4 C from the station mean1979: 7.5 C, -0.9 C from the station mean1980: 8.6 C, +0.2 C from the station mean1981: 9.7 C, +1.3 C from the station mean1982: 7.7 C, -0.7 C from the station mean1983: 8.2 C, -0.2 C from the station mean1984: 8.3 C, -0.1 C from the station mean1985: 7.5 C, -0.9 C from the station mean1986: 9.4 C, +1.0 C from the station mean1987: 8.7 C, +0.3 C from the station mean1988: 8.3 C, -0.1 C from the station mean1989: 8.2 C, -0.2 C from the station mean1990: 8.5 C, +0.1 C from the station mean1991: 8.8 C, +0.4 C from the station mean1992: 8.5 C, +0.1 C from the station mean1993: 7.1 C, -1.3 C from the station mean1994: 9.3 C, +0.9 C from the station mean1995: 8.3 C, -0.1 C from the station mean1996: 8.2 C, -0.2 C from the station mean1997: 8.2 C, -0.3 C from the station mean1998: 9.0 C, +0.6 C from the station mean1999: 9.6 C, +1.2 C from the station mean2000: 9.0 C, +0.6 C from the station mean2001: 9.0 C, +0.6 C from the station mean2002: 8.5 C, +0.1 C from the station mean2004: 8.9 C, +0.5 C from the station mean2005: 9.1 C, +0.7 C from the station mean2006: 8.9 C, +0.5 C from the station mean2007: 8.9 C, +0.5 C from the station mean2008: 7.8 C, -0.6 C from the station mean2009: 7.7 C, -0.7 C from the station mean2010: 8.5 C, +0.1 C from the station mean2011: 8.1 C, -0.3 C from the station mean2012: 10.3 C, +1.9 C from the station mean2013: 8.2 C, -0.2 C from the station mean2014: 7.9 C, -0.5 C from the station mean2015: 8.8 C, +0.4 C from the station mean2016: 9.3 C, +0.9 C from the station mean2017: 9.2 C, +0.8 C from the station mean2018: 8.3 C, -0.1 C from the station mean2019: 7.3 C, -1.1 C from the station mean2020: 9.1 C, +0.7 C from the station mean2021: 9.2 C, +0.8 C from the station mean2022: 8.3 C, -0.1 C from the station mean2023: 8.5 C, +0.1 C from the station mean2025: 9.6 C, +1.1 C from the station mean1962197019801990200020102020
One stripe for each of 61 complete years at Harrisburg 12WNW, 1962 to 2025. Blue stripes are years cooler than the station's own mean of 8.4 C (47.1 F); red stripes are warmer. The coolest year was 1978, at 7.0 C (44.6 F), and the warmest was 2012, at 10.3 C (50.5 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Harrisburg 12WNW as warming stripes, 1962 to 2025
YearAnnual mean temperatureDifference from the station mean
19628.1 C-0.33 C
19639.0 C+0.57 C
19657.9 C-0.50 C
19668.0 C-0.45 C
19677.9 C-0.54 C
19687.6 C-0.85 C
19698.2 C-0.25 C
19707.7 C-0.68 C
19717.7 C-0.75 C
19727.8 C-0.59 C
19737.4 C-0.97 C
19748.0 C-0.39 C
19757.5 C-0.86 C
19768.2 C-0.25 C
19778.7 C+0.29 C
19787.0 C-1.40 C
19797.5 C-0.90 C
19808.6 C+0.20 C
19819.7 C+1.30 C
19827.7 C-0.68 C
19838.2 C-0.16 C
19848.3 C-0.11 C
19857.5 C-0.86 C
19869.4 C+0.96 C
19878.7 C+0.32 C
19888.3 C-0.11 C
19898.2 C-0.20 C
19908.5 C+0.14 C
19918.8 C+0.38 C
19928.5 C+0.14 C
19937.1 C-1.30 C
19949.3 C+0.89 C
19958.3 C-0.13 C
19968.2 C-0.16 C
19978.2 C-0.25 C
19989.0 C+0.56 C
19999.6 C+1.22 C
20009.0 C+0.63 C
20019.0 C+0.60 C
20028.5 C+0.12 C
20048.9 C+0.52 C
20059.1 C+0.72 C
20068.9 C+0.53 C
20078.9 C+0.51 C
20087.8 C-0.62 C
20097.7 C-0.74 C
20108.5 C+0.11 C
20118.1 C-0.28 C
201210.3 C+1.88 C
20138.2 C-0.24 C
20147.9 C-0.54 C
20158.8 C+0.43 C
20169.3 C+0.91 C
20179.2 C+0.84 C
20188.3 C-0.12 C
20197.3 C-1.11 C
20209.1 C+0.73 C
20219.2 C+0.82 C
20228.3 C-0.13 C
20238.5 C+0.11 C
20259.6 C+1.15 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1962 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Harrisburg 12WNW
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.2) per decade0.3 F (0.1 to 0.4) per decade1962 to 202561Rise
Mean daily maximum0.3 C (0.1 to 0.4) per decade0.5 F (0.2 to 0.7) per decade1962 to 202561Rise
Mean daily minimum0.06 C (-0.02 to 0.14) per decade0.10 F (-0.05 to 0.25) per decade1962 to 202561Not 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

1911 to 2026
Yearly extremes at Harrisburg 12WNW: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.1 C (106.0 F)202637.8 C (100.0 F)66
Coldest night (TNn)-42.2 C (-44.0 F)1989-30.6 C (-23.1 F)66
Wettest day (Rx1day)101.6 mm (4.0 in)193336.2 mm (1.4 in)114
Wettest five days (Rx5day)109.5 mm (4.3 in)202353.8 mm (2.1 in)114
Longest dry spell (CDD)79 days193535 days114

Hottest day (TXx)

Hottest day (TXx) at Harrisburg 12WNW by year The hottest day of the year at Harrisburg 12WNW, 1911 to 2026. The record is 41.1 C (106.0 F) in 2026, marked on the chart; the median year is 37.8 C (100.0 F). 323436384042192019401960198020002020Record: 41.1 C (106.0 F) in 2026
The hottest day of the year at Harrisburg 12WNW, 1911 to 2026. The record is 41.1 C (106.0 F) in 2026, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Harrisburg 12WNW by year
YearHottest day (TXx)
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
1918n/a
1919n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
196133.9 C (93.0 F)
196235.6 C (96.1 F)
196336.1 C (97.0 F)
196435.6 C (96.1 F)
196537.2 C (99.0 F)
196637.2 C (99.0 F)
196735.0 C (95.0 F)
196836.1 C (97.0 F)
196937.8 C (100.0 F)
197036.7 C (98.1 F)
197135.0 C (95.0 F)
197236.7 C (98.1 F)
197338.3 C (100.9 F)
197435.6 C (96.1 F)
197537.2 C (99.0 F)
197637.8 C (100.0 F)
197736.7 C (98.1 F)
197836.1 C (97.0 F)
197937.8 C (100.0 F)
198038.9 C (102.0 F)
198137.2 C (99.0 F)
198238.3 C (100.9 F)
198336.1 C (97.0 F)
198434.4 C (93.9 F)
198537.8 C (100.0 F)
198635.6 C (96.1 F)
198736.1 C (97.0 F)
198837.2 C (99.0 F)
198939.4 C (102.9 F)
199040.0 C (104.0 F)
199136.1 C (97.0 F)
199234.4 C (93.9 F)
199335.0 C (95.0 F)
199437.8 C (100.0 F)
199539.4 C (102.9 F)
199639.4 C (102.9 F)
199738.3 C (100.9 F)
199838.3 C (100.9 F)
199938.3 C (100.9 F)
200037.8 C (100.0 F)
200140.0 C (104.0 F)
200240.0 C (104.0 F)
200339.4 C (102.9 F)
200438.3 C (100.9 F)
200538.9 C (102.0 F)
200640.6 C (105.1 F)
200738.9 C (102.0 F)
200837.8 C (100.0 F)
200936.7 C (98.1 F)
201037.2 C (99.0 F)
201137.8 C (100.0 F)
201240.6 C (105.1 F)
201336.7 C (98.1 F)
201438.9 C (102.0 F)
201536.1 C (97.0 F)
201637.8 C (100.0 F)
201738.9 C (102.0 F)
201839.4 C (102.9 F)
201936.7 C (98.1 F)
202038.9 C (102.0 F)
202138.3 C (100.9 F)
202240.0 C (104.0 F)
202337.2 C (99.0 F)
202438.3 C (100.9 F)
202538.9 C (102.0 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Harrisburg 12WNW by year The coldest night of the year at Harrisburg 12WNW, 1911 to 2026. The record is -42.2 C (-44.0 F) in 1989, marked on the chart; the median year is -30.6 C (-23.1 F). -50-40-30-20-10192019401960198020002020Record: -42.2 C (-44.0 F) in 1989
The coldest night of the year at Harrisburg 12WNW, 1911 to 2026. The record is -42.2 C (-44.0 F) in 1989, marked on the chart; the median year is -30.6 C (-23.1 F).
Coldest night (TNn) at Harrisburg 12WNW by year
YearColdest night (TNn)
1911n/a
1912n/a
1913n/a
1914n/a
1915n/a
1916n/a
1917n/a
1918n/a
1919n/a
1922n/a
1923n/a
1924n/a
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961-29.4 C (-20.9 F)
1962-34.4 C (-29.9 F)
1963-37.2 C (-35.0 F)
1964-34.4 C (-29.9 F)
1965-25.0 C (-13.0 F)
1966-35.0 C (-31.0 F)
1967-29.4 C (-20.9 F)
1968-31.7 C (-25.1 F)
1969-24.4 C (-11.9 F)
1970-25.6 C (-14.1 F)
1971-26.1 C (-15.0 F)
1972-33.3 C (-27.9 F)
1973-31.1 C (-24.0 F)
1974-32.8 C (-27.0 F)
1975-28.9 C (-20.0 F)
1976-30.6 C (-23.1 F)
1977-29.4 C (-20.9 F)
1978-30.0 C (-22.0 F)
1979-35.0 C (-31.0 F)
1980-26.7 C (-16.1 F)
1981-30.6 C (-23.1 F)
1982-35.0 C (-31.0 F)
1983-33.3 C (-27.9 F)
1984-32.2 C (-26.0 F)
1985-32.8 C (-27.0 F)
1986-31.7 C (-25.1 F)
1987-32.2 C (-26.0 F)
1988-31.7 C (-25.1 F)
1989-42.2 C (-44.0 F)
1990-38.3 C (-36.9 F)
1991-26.7 C (-16.1 F)
1992-28.3 C (-18.9 F)
1993-31.7 C (-25.1 F)
1994-31.1 C (-24.0 F)
1995-30.6 C (-23.1 F)
1996-30.0 C (-22.0 F)
1997-26.1 C (-15.0 F)
1998-35.0 C (-31.0 F)
1999-17.2 C (1.0 F)
2000-24.4 C (-11.9 F)
2001-24.4 C (-11.9 F)
2002-26.7 C (-16.1 F)
2003-28.3 C (-18.9 F)
2004-31.1 C (-24.0 F)
2005-31.1 C (-24.0 F)
2006-33.3 C (-27.9 F)
2007-29.4 C (-20.9 F)
2008-28.9 C (-20.0 F)
2009-31.1 C (-24.0 F)
2010-28.3 C (-18.9 F)
2011-31.1 C (-24.0 F)
2012-25.0 C (-13.0 F)
2013-30.6 C (-23.1 F)
2014-36.7 C (-34.1 F)
2015-26.1 C (-15.0 F)
2016-31.1 C (-24.0 F)
2017-30.0 C (-22.0 F)
2018-26.1 C (-15.0 F)
2019-27.8 C (-18.0 F)
2020-23.3 C (-9.9 F)
2021-27.8 C (-18.0 F)
2022-30.0 C (-22.0 F)
2023-30.6 C (-23.1 F)
2024-33.3 C (-27.9 F)
2025-27.2 C (-17.0 F)
2026-30.6 C (-23.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Harrisburg 12WNW by year The wettest day of the year at Harrisburg 12WNW, 1911 to 2026. The record is 101.6 mm (4.0 in) in 1933, marked on the chart; the median year is 36.2 mm (1.4 in). 050100150192019401960198020002020Record: 101.6 mm (4.0 in) in 1933
The wettest day of the year at Harrisburg 12WNW, 1911 to 2026. The record is 101.6 mm (4.0 in) in 1933, marked on the chart; the median year is 36.2 mm (1.4 in).
Wettest day (Rx1day) at Harrisburg 12WNW by year
YearWettest day (Rx1day)
191122.6 mm (0.9 in)
191254.9 mm (2.2 in)
191340.6 mm (1.6 in)
191433.0 mm (1.3 in)
191541.9 mm (1.6 in)
191657.9 mm (2.3 in)
191759.7 mm (2.4 in)
191849.0 mm (1.9 in)
19190.0 mm (0.00 in)
192239.4 mm (1.6 in)
192343.2 mm (1.7 in)
192430.5 mm (1.2 in)
192557.2 mm (2.3 in)
192627.2 mm (1.1 in)
192749.5 mm (1.9 in)
192855.6 mm (2.2 in)
192963.5 mm (2.5 in)
193027.9 mm (1.1 in)
193120.3 mm (0.8 in)
193247.0 mm (1.9 in)
1933101.6 mm (4.0 in)
193457.9 mm (2.3 in)
193547.0 mm (1.9 in)
193627.9 mm (1.1 in)
193732.0 mm (1.3 in)
193868.8 mm (2.7 in)
193922.9 mm (0.9 in)
194037.6 mm (1.5 in)
194134.8 mm (1.4 in)
194238.1 mm (1.5 in)
194336.8 mm (1.4 in)
194437.6 mm (1.5 in)
194537.3 mm (1.5 in)
194628.4 mm (1.1 in)
194758.4 mm (2.3 in)
194825.4 mm (1.0 in)
194950.3 mm (2.0 in)
195029.7 mm (1.2 in)
195132.5 mm (1.3 in)
195236.1 mm (1.4 in)
195358.9 mm (2.3 in)
195432.5 mm (1.3 in)
195549.5 mm (1.9 in)
195630.0 mm (1.2 in)
195770.4 mm (2.8 in)
195819.6 mm (0.8 in)
195930.2 mm (1.2 in)
196030.7 mm (1.2 in)
196133.5 mm (1.3 in)
196235.1 mm (1.4 in)
196345.7 mm (1.8 in)
196437.8 mm (1.5 in)
196540.4 mm (1.6 in)
196624.9 mm (1.0 in)
196741.1 mm (1.6 in)
196822.6 mm (0.9 in)
196933.8 mm (1.3 in)
197035.3 mm (1.4 in)
197139.9 mm (1.6 in)
197230.2 mm (1.2 in)
197347.8 mm (1.9 in)
197433.0 mm (1.3 in)
197524.9 mm (1.0 in)
197629.7 mm (1.2 in)
197739.6 mm (1.6 in)
197824.1 mm (0.9 in)
197932.3 mm (1.3 in)
198017.8 mm (0.7 in)
198128.7 mm (1.1 in)
198243.7 mm (1.7 in)
198336.3 mm (1.4 in)
198433.5 mm (1.3 in)
198521.6 mm (0.9 in)
198669.9 mm (2.8 in)
198725.7 mm (1.0 in)
198858.4 mm (2.3 in)
198920.1 mm (0.8 in)
199026.9 mm (1.1 in)
199139.4 mm (1.6 in)
199224.1 mm (0.9 in)
199333.3 mm (1.3 in)
199437.6 mm (1.5 in)
199526.7 mm (1.1 in)
199633.8 mm (1.3 in)
199746.7 mm (1.8 in)
199846.5 mm (1.8 in)
199927.9 mm (1.1 in)
200029.0 mm (1.1 in)
200127.9 mm (1.1 in)
200232.0 mm (1.3 in)
200339.1 mm (1.5 in)
200448.5 mm (1.9 in)
200574.9 mm (2.9 in)
200663.2 mm (2.5 in)
200737.6 mm (1.5 in)
200839.4 mm (1.6 in)
200933.0 mm (1.3 in)
201033.5 mm (1.3 in)
201136.6 mm (1.4 in)
201221.6 mm (0.9 in)
201361.7 mm (2.4 in)
201433.0 mm (1.3 in)
201554.9 mm (2.2 in)
201637.3 mm (1.5 in)
201729.2 mm (1.1 in)
201841.7 mm (1.6 in)
201950.5 mm (2.0 in)
202020.8 mm (0.8 in)
202150.0 mm (2.0 in)
202221.1 mm (0.8 in)
202341.4 mm (1.6 in)
202419.6 mm (0.8 in)
202558.2 mm (2.3 in)
202632.0 mm (1.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Harrisburg 12WNW by year The wettest five days of the year at Harrisburg 12WNW, 1911 to 2026. The record is 109.5 mm (4.3 in) in 2023, marked on the chart; the median year is 53.8 mm (2.1 in). 050100150192019401960198020002020Record: 109.5 mm (4.3 in) in 2023
The wettest five days of the year at Harrisburg 12WNW, 1911 to 2026. The record is 109.5 mm (4.3 in) in 2023, marked on the chart; the median year is 53.8 mm (2.1 in).
Wettest five days (Rx5day) at Harrisburg 12WNW by year
YearWettest five days (Rx5day)
191140.4 mm (1.6 in)
191269.1 mm (2.7 in)
191364.3 mm (2.5 in)
191434.8 mm (1.4 in)
191590.9 mm (3.6 in)
191693.2 mm (3.7 in)
191780.5 mm (3.2 in)
191854.1 mm (2.1 in)
19190.0 mm (0.00 in)
192259.2 mm (2.3 in)
192377.5 mm (3.1 in)
192446.9 mm (1.8 in)
192559.0 mm (2.3 in)
192647.5 mm (1.9 in)
192749.5 mm (1.9 in)
192875.9 mm (3.0 in)
192986.3 mm (3.4 in)
193043.1 mm (1.7 in)
193130.5 mm (1.2 in)
193250.8 mm (2.0 in)
1933101.6 mm (4.0 in)
193464.3 mm (2.5 in)
193547.0 mm (1.9 in)
193642.3 mm (1.7 in)
193747.5 mm (1.9 in)
193883.3 mm (3.3 in)
193923.2 mm (0.9 in)
194046.8 mm (1.8 in)
194199.1 mm (3.9 in)
194263.0 mm (2.5 in)
194354.3 mm (2.1 in)
194439.9 mm (1.6 in)
194546.7 mm (1.8 in)
194634.3 mm (1.4 in)
194775.7 mm (3.0 in)
194837.8 mm (1.5 in)
194963.0 mm (2.5 in)
195052.8 mm (2.1 in)
195164.5 mm (2.5 in)
195257.4 mm (2.3 in)
195388.6 mm (3.5 in)
195439.4 mm (1.6 in)
195565.6 mm (2.6 in)
195651.5 mm (2.0 in)
195776.2 mm (3.0 in)
195831.8 mm (1.3 in)
195940.1 mm (1.6 in)
196030.7 mm (1.2 in)
196150.0 mm (2.0 in)
196252.6 mm (2.1 in)
196353.0 mm (2.1 in)
196450.5 mm (2.0 in)
196573.2 mm (2.9 in)
196646.5 mm (1.8 in)
196758.4 mm (2.3 in)
196835.8 mm (1.4 in)
196953.4 mm (2.1 in)
197077.7 mm (3.1 in)
197162.2 mm (2.4 in)
197247.5 mm (1.9 in)
197365.1 mm (2.6 in)
197450.5 mm (2.0 in)
197532.2 mm (1.3 in)
197661.2 mm (2.4 in)
197761.2 mm (2.4 in)
197830.2 mm (1.2 in)
197939.5 mm (1.6 in)
198030.9 mm (1.2 in)
198144.4 mm (1.7 in)
198250.2 mm (2.0 in)
198356.1 mm (2.2 in)
198443.0 mm (1.7 in)
198543.0 mm (1.7 in)
1986104.6 mm (4.1 in)
198746.3 mm (1.8 in)
198889.3 mm (3.5 in)
198941.7 mm (1.6 in)
199041.4 mm (1.6 in)
199150.8 mm (2.0 in)
199242.6 mm (1.7 in)
199349.5 mm (1.9 in)
199443.7 mm (1.7 in)
199564.7 mm (2.5 in)
199672.5 mm (2.9 in)
199781.0 mm (3.2 in)
199848.8 mm (1.9 in)
199962.6 mm (2.5 in)
200071.8 mm (2.8 in)
200165.8 mm (2.6 in)
200247.8 mm (1.9 in)
200363.0 mm (2.5 in)
200454.6 mm (2.1 in)
200576.2 mm (3.0 in)
200669.2 mm (2.7 in)
200739.1 mm (1.5 in)
200879.8 mm (3.1 in)
200969.9 mm (2.8 in)
201065.6 mm (2.6 in)
201151.6 mm (2.0 in)
201221.6 mm (0.9 in)
201367.8 mm (2.7 in)
201469.1 mm (2.7 in)
201576.5 mm (3.0 in)
201658.9 mm (2.3 in)
201787.1 mm (3.4 in)
201877.5 mm (3.1 in)
201961.2 mm (2.4 in)
202038.1 mm (1.5 in)
202156.4 mm (2.2 in)
202232.5 mm (1.3 in)
2023109.5 mm (4.3 in)
202435.4 mm (1.4 in)
202568.4 mm (2.7 in)
202643.5 mm (1.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Harrisburg 12WNW by year The longest dry spell of the year at Harrisburg 12WNW, 1911 to 2026. The record is 79 days in 1935, marked on the chart; the median year is 35 days. 020406080192019401960198020002020Record: 79 days in 1935
The longest dry spell of the year at Harrisburg 12WNW, 1911 to 2026. The record is 79 days in 1935, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Harrisburg 12WNW by year
YearLongest dry spell (CDD)
191139 days
191222 days
191326 days
191449 days
191531 days
191649 days
191729 days
191820 days
191931 days
192241 days
192322 days
192426 days
192517 days
192644 days
192729 days
192871 days
192941 days
193037 days
193137 days
193239 days
193360 days
193429 days
193579 days
193646 days
193744 days
193822 days
193955 days
194026 days
194120 days
194230 days
194324 days
194436 days
194522 days
194652 days
194733 days
194832 days
194941 days
195036 days
195130 days
195233 days
195347 days
195456 days
195533 days
195659 days
195742 days
195837 days
195962 days
196033 days
196147 days
196239 days
196326 days
196442 days
196552 days
196647 days
196745 days
196836 days
196930 days
197029 days
197132 days
197240 days
197324 days
197431 days
197525 days
197649 days
197735 days
197839 days
197930 days
198038 days
198126 days
198227 days
198363 days
198424 days
198546 days
198625 days
198729 days
198836 days
198933 days
199023 days
199124 days
199240 days
199323 days
199429 days
199539 days
199647 days
199729 days
199830 days
199941 days
200028 days
200135 days
200258 days
200330 days
200429 days
200534 days
200657 days
200730 days
200847 days
200932 days
201035 days
201120 days
201251 days
201328 days
201424 days
201536 days
201623 days
201744 days
201823 days
201915 days
202043 days
202123 days
202235 days
202330 days
202451 days
202547 days
202651 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

61 years with a frost

Across 61 years with a frost, the median last spring frost at Harrisburg 12WNW falls on 24 May and the median first autumn frost on 18 September, which leaves a median of 115 days between them.

In 1994 to 2025 the median growing season was 110 days. That is 9 days fewer than in 1962 to 1992.

Fitted over all years, the growing season changes by -1.8 days per decade at this station.

Frost dates and growing season at Harrisburg 12WNW
MeasureMedian, all yearsEarliest period (1962 to 1992)Recent period (1994 to 2025)Recent against earliestFitted trend
Last spring frost24 May21 May28 May7 days later+1.1 days per decade
First autumn frost18 September18 September18 Septemberno change-0.7 days per decade
Growing days115 days119 days110 days9 days fewer-1.8 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

104 years, 1912 to 2025

A day with at least 36.2 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 81.1 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Harrisburg 12WNW: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years36.2 mm (1.4 in)
5 years48.2 mm (1.9 in)
10 years56.1 mm (2.2 in)
25 years66.2 mm (2.6 in)
50 years73.7 mm (2.9 in)
100 years81.1 mm (3.2 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 104 years of values from 1912 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: 74.9 mm (2.9 in) in 2005; 70.4 mm (2.8 in) in 1957; 69.9 mm (2.8 in) in 1986.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Harrisburg 12WNW had a mean temperature of 8.7 C (47.7 F) and 412.4 mm (16.2 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Glenrock 5 ESE (United States, 201 km away), Hemingford (United States, 106 km away) and Akron 4 E (United States, 178 km away).

Climate twins of Harrisburg 12WNW: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Glenrock 5 ESEUnited States201 km (125 mi)8.9 C (47.9 F)324.4 mm (12.8 in)0.87
HemingfordUnited States106 km (66 mi)8.5 C (47.3 F)438.8 mm (17.3 in)0.96
Akron 4 EUnited States178 km (111 mi)9.3 C (48.7 F)403.0 mm (15.9 in)1.06

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Harrisburg 12WNW standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Harrisburg 12WNW 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).