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Built 2026-10-14 (14 October 2026)

Genoa Weather Records (USC00053258)

Record envelope, standing records and threshold days for Genoa (USC00053258), Colorado, United States, with 87 years of record.

Key Facts for Genoa

  • Genoa (USC00053258) is a weather station in Colorado, United States at 39.28 latitude and -103.49 longitude, 1,705 m (5,593 ft) above sea level.
  • The station reports from 1940 to 2026, 87 years of record.
  • 1,464 records set at Genoa still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Genoa set a monthly record daily precipitation of 91.9 mm (3.6 in) on 23 July 2026.

About the Station

  • Location: Colorado, United States, 39.28 latitude, -103.49 longitude.
  • Elevation: 1,705 m (5,593 ft).
  • Period of record: 1940 to 2026, 87 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

27 days at or beyond a record
Daily record high and record low at Genoa, with 2026 drawn through them The band shows the record high and record low for each calendar day at Genoa. The lines show the 2026 daily maximum and minimum. 27 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 Genoa. 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 Genoa, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-28.9 C (-20.0 F)18.9 C (66.0 F)-21.7 C (-7.1 F)
Feb24.4 C (75.9 F)-30.6 C (-23.1 F)21.7 C (71.1 F)-12.2 C (10.0 F)
Mar29.4 C (84.9 F)-21.1 C (-6.0 F)29.4 C (84.9 F)-12.2 C (10.0 F)
Apr29.4 C (84.9 F)-15.0 C (5.0 F)27.8 C (82.0 F)-5.0 C (23.0 F)
May35.6 C (96.1 F)-8.3 C (17.1 F)28.3 C (82.9 F)-1.7 C (28.9 F)
Jun38.9 C (102.0 F)1.1 C (34.0 F)32.8 C (91.0 F)7.2 C (45.0 F)
Jul38.3 C (100.9 F)4.4 C (39.9 F)37.2 C (99.0 F)12.2 C (54.0 F)
Aug38.3 C (100.9 F)4.4 C (39.9 F)36.1 C (97.0 F)9.4 C (48.9 F)
Sep36.7 C (98.1 F)-5.6 C (21.9 F)n/an/a
Oct32.2 C (90.0 F)-16.7 C (1.9 F)n/an/a
Nov26.1 C (79.0 F)-22.2 C (-8.0 F)n/an/a
Dec22.2 C (72.0 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Genoa by the year they were set 1,464 records at Genoa still stand. 2020 holds the most, with 72. 0204060801970: 701971: 641972: 531973: 121975: 101979: 132000: 122001: 342002: 362003: 692004: 662005: 472006: 472007: 242008: 452009: 642010: 342011: 532012: 612013: 592014: 622015: 352016: 452017: 432018: 632019: 302020: 722021: 492022: 422023: 292024: 302025: 512026: 40197019752002200620102014201820222026
1,464 records at Genoa still stand. 2020 holds the most, with 72.
Standing records at Genoa by the year they were set
Year setStanding records
197070
197164
197253
197312
197510
197913
200012
200134
200236
200369
200466
200547
200647
200724
200845
200964
201034
201153
201261
201359
201462
201535
201645
201743
201863
201930
202072
202149
202242
202329
202430
202551
202640

All-Time Record Progression

2 new records
When Genoa set new all-time records 2 all-time records were set at Genoa between 8 November 2024 and 9 November 2024. Each dot is a new record. Record snow depth8 November 2024: Record snow depth 58.4 cm (23.0 in)9 November 2024: Record snow depth 81.3 cm (32.0 in)2025
2 all-time records were set at Genoa between 8 November 2024 and 9 November 2024. Each dot is a new record.
When Genoa set new all-time records
DateKindDetail
2024-11-08Record snow depthRecord snow depth 58.4 cm (23.0 in)
2024-11-09Record snow depthRecord snow depth 81.3 cm (32.0 in)

Wettest Day of Each Month

Sep: 107.4 mm (4.2 in)
Record daily precipitation for each month at Genoa The wettest day on record for each calendar month at Genoa. The most was 107.4 mm (4.2 in) on 1 September 1942. 050100150 Jan: 47.0 mm (1.9 in), 10 January 2002 Jan Feb: 22.9 mm (0.9 in), 15 February 1987 Feb Mar: 55.9 mm (2.2 in), 26 March 2009 Mar Apr: 69.8 mm (2.7 in), 27 April 2012 Apr May: 71.1 mm (2.8 in), 25 May 2011 May Jun: 85.1 mm (3.4 in), 24 June 2026 Jun Jul: 91.9 mm (3.6 in), 23 July 2026 Jul Aug: 91.4 mm (3.6 in), 7 August 2008 Aug Sep: 107.4 mm (4.2 in), 1 September 1942 Sep Oct: 37.6 mm (1.5 in), 15 October 1942 Oct Nov: 35.6 mm (1.4 in), 24 November 2002 Nov Dec: 16.5 mm (0.6 in), 11 December 2000 Dec
The wettest day on record for each calendar month at Genoa. The most was 107.4 mm (4.2 in) on 1 September 1942.
Record daily precipitation for each month at Genoa
MonthRecord daily precipitation (mm)Date
Jan47.0 mm (1.9 in)10 January 2002
Feb22.9 mm (0.9 in)15 February 1987
Mar55.9 mm (2.2 in)26 March 2009
Apr69.8 mm (2.7 in)27 April 2012
May71.1 mm (2.8 in)25 May 2011
Jun85.1 mm (3.4 in)24 June 2026
Jul91.9 mm (3.6 in)23 July 2026
Aug91.4 mm (3.6 in)7 August 2008
Sep107.4 mm (4.2 in)1 September 1942
Oct37.6 mm (1.5 in)15 October 1942
Nov35.6 mm (1.4 in)24 November 2002
Dec16.5 mm (0.6 in)11 December 2000

Period of Record Coverage

1970 to 2026
Days with data per year at Genoa 34 years of record at Genoa, 1970 to 2026. 19 years have data for under 90 percent of days and are left out of rankings: 1970, 1972, 1973, 1975, 1976, 1979, 2000, 2001 and others. 1970: 270 of 365 days1971: 353 of 365 days1972: 295 of 366 days1973: 59 of 365 days1975: 62 of 365 days1976: 31 of 366 days1979: 31 of 365 days2000: 57 of 366 days2001: 304 of 365 days2002: 311 of 365 days2003: 330 of 365 days2004: 342 of 366 days2005: 312 of 365 days2006: 317 of 365 days2007: 316 of 365 days2008: 325 of 366 days2009: 356 of 365 days2010: 358 of 365 days2011: 364 of 365 days2012: 359 of 366 days2013: 356 of 365 days2014: 318 of 365 days2015: 358 of 365 days2016: 361 of 366 days2017: 320 of 365 days2018: 334 of 365 days2019: 342 of 365 days2020: 333 of 366 days2021: 316 of 365 days2022: 293 of 365 days2023: 358 of 365 days2024: 243 of 366 days2025: 347 of 365 days2026: 216 of 365 days19701975200020052010201520202025
34 years of record at Genoa, 1970 to 2026. 19 years have data for under 90 percent of days and are left out of rankings: 1970, 1972, 1973, 1975, 1976, 1979, 2000, 2001 and others.
Days with data per year at Genoa
YearDays with dataShare of yearComplete
197027074%No
197135397%Yes
197229581%No
19735916%No
19756217%No
1976318%No
1979318%No
20005716%No
200130483%No
200231185%No
200333090%Yes
200434293%Yes
200531285%No
200631787%No
200731687%No
200832589%No
200935698%Yes
201035898%Yes
2011364100%Yes
201235998%Yes
201335698%Yes
201431887%No
201535898%Yes
201636199%Yes
201732088%No
201833492%Yes
201934294%Yes
202033391%Yes
202131687%No
202229380%No
202335898%Yes
202424366%No
202534795%Yes
202621659%No

Latest Records

20
Latest records at Genoa
DateStationRecordValueBeat old record byOld record stoodSignificance
23 July 2026Genoa, USmonthly rain91.9 mm (3.6 in)10.1 mm (0.4 in)28 years36 of 100 (Notable)
24 June 2026Genoa, USmonthly rain85.1 mm (3.4 in)19.1 mm (0.8 in)20 years43 of 100 (Notable)
18 May 2026Genoa, USdaily rain22.9 mm (0.9 in)6.9 mm (0.27 in)31 years20 of 100 (Routine)
6 May 2026Genoa, USdaily snowfall7.6 cm (3.0 in)7.6 cm (3.0 in)84 years50 of 100 (Notable)
6 May 2026Genoa, USdaily snow depth7.6 cm (3.0 in)7.6 cm (3.0 in)84 years20 of 100 (Routine)
19 January 2026Genoa, USdaily snowfall (Tie)10.2 cm (4.0 in)tie68 years7 of 100 (Routine)
29 August 2025Genoa, USdaily rain24.9 mm (1.0 in)0.8 mm (0.03 in)14 years12 of 100 (Routine)
6 July 2025Genoa, USdaily rain26.4 mm (1.0 in)10.9 mm (0.4 in)35 years28 of 100 (Routine)
6 June 2025Genoa, USdaily rain36.3 mm (1.4 in)12.9 mm (0.5 in)10 years24 of 100 (Routine)
31 March 2025Genoa, USdaily rain10.7 mm (0.4 in)0.3 mm (0.01 in)24 years15 of 100 (Routine)
7 January 2025Genoa, USdaily snowfall (Tie)7.6 cm (3.0 in)tie52 years5 of 100 (Routine)
28 November 2024Genoa, USdaily snowfall5.1 cm (2.0 in)2.3 cm (0.9 in)27 years21 of 100 (Routine)
28 November 2024Genoa, USdaily rain3.0 mm (0.12 in)1.2 mm (0.05 in)27 years18 of 100 (Routine)
22 November 2024Genoa, USdaily snow depth (Tie)12.7 cm (5.0 in)tie68 years7 of 100 (Routine)
20 November 2024Genoa, USdaily snow depth (Tie)15.2 cm (6.0 in)tie68 years7 of 100 (Routine)
19 November 2024Genoa, USdaily snow depth17.8 cm (7.0 in)2.6 cm (1.0 in)49 years27 of 100 (Routine)
18 November 2024Genoa, USdaily snow depth20.3 cm (8.0 in)10.1 cm (4.0 in)76 years52 of 100 (Notable)
17 November 2024Genoa, USdaily snow depth20.3 cm (8.0 in)7.6 cm (3.0 in)31 years34 of 100 (Routine)
16 November 2024Genoa, USdaily snow depth25.4 cm (10.0 in)10.2 cm (4.0 in)31 years40 of 100 (Notable)
15 November 2024Genoa, USdaily snow depth27.9 cm (11.0 in)10.1 cm (4.0 in)31 years39 of 100 (Notable)

Climate Trend

15 complete years, 1971 to 2025
Annual mean temperature at Genoa as warming stripes, 1971 to 2025 One stripe for each of 15 complete years at Genoa, 1971 to 2025. Blue stripes are years cooler than the station's own mean of 9.8 C (49.7 F); red stripes are warmer. The coolest year was 1971, at 7.8 C (46.0 F), and the warmest was 2012, at 11.4 C (52.5 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1971: 7.8 C, -2.1 C from the station mean2003: 10.1 C, +0.3 C from the station mean2004: 10.0 C, +0.1 C from the station mean2007: 9.9 C, 0.0 C from the station mean2009: 9.1 C, -0.8 C from the station mean2010: 10.1 C, +0.3 C from the station mean2011: 9.7 C, -0.1 C from the station mean2012: 11.4 C, +1.5 C from the station mean2013: 9.5 C, -0.3 C from the station mean2015: 10.3 C, +0.4 C from the station mean2016: 10.6 C, +0.7 C from the station mean2018: 10.7 C, +0.8 C from the station mean2019: 9.0 C, -0.8 C from the station mean2023: 9.4 C, -0.5 C from the station mean2025: 10.3 C, +0.5 C from the station mean197119751980198519901995200020052010201520202025
One stripe for each of 15 complete years at Genoa, 1971 to 2025. Blue stripes are years cooler than the station's own mean of 9.8 C (49.7 F); red stripes are warmer. The coolest year was 1971, at 7.8 C (46.0 F), and the warmest was 2012, at 11.4 C (52.5 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Genoa as warming stripes, 1971 to 2025
YearAnnual mean temperatureDifference from the station mean
19717.8 C-2.09 C
200310.1 C+0.25 C
200410.0 C+0.11 C
20079.9 C+0.04 C
20099.1 C-0.76 C
201010.1 C+0.25 C
20119.7 C-0.10 C
201211.4 C+1.53 C
20139.5 C-0.35 C
201510.3 C+0.42 C
201610.6 C+0.72 C
201810.7 C+0.82 C
20199.0 C-0.85 C
20239.4 C-0.48 C
202510.3 C+0.45 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

1940 to 2026
Yearly extremes at Genoa: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)38.9 C (102.0 F)201236.4 C (97.5 F)34
Coldest night (TNn)-30.6 C (-23.1 F)2021-22.5 C (-8.5 F)34
Wettest day (Rx1day)107.4 mm (4.2 in)194240.8 mm (1.6 in)84
Wettest five days (Rx5day)118.4 mm (4.7 in)200860.5 mm (2.4 in)84
Longest dry spell (CDD)74 days201635 days84

Hottest day (TXx)

Hottest day (TXx) at Genoa by year The hottest day of the year at Genoa, 1940 to 2026. The record is 38.9 C (102.0 F) in 2012, marked on the chart; the median year is 36.4 C (97.5 F). 01020304019401960198020002020Record: 38.9 C (102.0 F) in 2012
The hottest day of the year at Genoa, 1940 to 2026. The record is 38.9 C (102.0 F) in 2012, marked on the chart; the median year is 36.4 C (97.5 F).
Hottest day (TXx) at Genoa by year
YearHottest day (TXx)
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
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
197036.1 C (97.0 F)
197137.8 C (100.0 F)
197235.0 C (95.0 F)
197321.7 C (71.1 F)
1974n/a
197537.8 C (100.0 F)
197614.4 C (57.9 F)
1977n/a
1978n/a
19798.9 C (48.0 F)
1980n/a
1981n/a
1982n/a
1983n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
200015.6 C (60.1 F)
200136.1 C (97.0 F)
200236.7 C (98.1 F)
200337.8 C (100.0 F)
200436.7 C (98.1 F)
200538.3 C (100.9 F)
200637.2 C (99.0 F)
200735.6 C (96.1 F)
200837.2 C (99.0 F)
200933.9 C (93.0 F)
201037.2 C (99.0 F)
201135.6 C (96.1 F)
201238.9 C (102.0 F)
201337.2 C (99.0 F)
201436.1 C (97.0 F)
201533.3 C (91.9 F)
201636.1 C (97.0 F)
201736.1 C (97.0 F)
201835.6 C (96.1 F)
201936.1 C (97.0 F)
202037.2 C (99.0 F)
202137.8 C (100.0 F)
202238.3 C (100.9 F)
202336.7 C (98.1 F)
202435.6 C (96.1 F)
202536.7 C (98.1 F)
202637.2 C (99.0 F)

Coldest night (TNn)

Coldest night (TNn) at Genoa by year The coldest night of the year at Genoa, 1940 to 2026. The record is -30.6 C (-23.1 F) in 2021, marked on the chart; the median year is -22.5 C (-8.5 F). -40-30-20-1001019401960198020002020Record: -30.6 C (-23.1 F) in 2021
The coldest night of the year at Genoa, 1940 to 2026. The record is -30.6 C (-23.1 F) in 2021, marked on the chart; the median year is -22.5 C (-8.5 F).
Coldest night (TNn) at Genoa by year
YearColdest night (TNn)
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
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970-18.3 C (-0.9 F)
1971-28.3 C (-18.9 F)
1972-27.2 C (-17.0 F)
1973-21.1 C (-6.0 F)
1974n/a
19758.9 C (48.0 F)
1976-21.7 C (-7.1 F)
1977n/a
1978n/a
1979-28.9 C (-20.0 F)
1980n/a
1981n/a
1982n/a
1983n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000-20.0 C (-4.0 F)
2001-20.0 C (-4.0 F)
2002-20.0 C (-4.0 F)
2003-23.3 C (-9.9 F)
2004-22.8 C (-9.0 F)
2005-22.2 C (-8.0 F)
2006-24.4 C (-11.9 F)
2007-22.8 C (-9.0 F)
2008-23.3 C (-9.9 F)
2009-23.9 C (-11.0 F)
2010-21.1 C (-6.0 F)
2011-27.8 C (-18.0 F)
2012-17.2 C (1.0 F)
2013-22.2 C (-8.0 F)
2014-27.2 C (-17.0 F)
2015-19.4 C (-2.9 F)
2016-23.9 C (-11.0 F)
2017-18.3 C (-0.9 F)
2018-21.7 C (-7.1 F)
2019-21.1 C (-6.0 F)
2020-19.4 C (-2.9 F)
2021-30.6 C (-23.1 F)
2022-26.1 C (-15.0 F)
2023-24.4 C (-11.9 F)
2024-27.8 C (-18.0 F)
2025-23.3 C (-9.9 F)
2026-21.7 C (-7.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Genoa by year The wettest day of the year at Genoa, 1940 to 2026. The record is 107.4 mm (4.2 in) in 1942, marked on the chart; the median year is 40.8 mm (1.6 in). 025507510012519401960198020002020Record: 107.4 mm (4.2 in) in 1942
The wettest day of the year at Genoa, 1940 to 2026. The record is 107.4 mm (4.2 in) in 1942, marked on the chart; the median year is 40.8 mm (1.6 in).
Wettest day (Rx1day) at Genoa by year
YearWettest day (Rx1day)
194022.4 mm (0.9 in)
194153.8 mm (2.1 in)
1942107.4 mm (4.2 in)
194347.8 mm (1.9 in)
194422.9 mm (0.9 in)
194535.6 mm (1.4 in)
194638.9 mm (1.5 in)
194744.5 mm (1.8 in)
194818.8 mm (0.7 in)
194925.1 mm (1.0 in)
195023.6 mm (0.9 in)
195124.9 mm (1.0 in)
195240.9 mm (1.6 in)
195334.3 mm (1.4 in)
195424.1 mm (0.9 in)
195538.9 mm (1.5 in)
195616.0 mm (0.6 in)
195730.5 mm (1.2 in)
195836.8 mm (1.4 in)
195936.6 mm (1.4 in)
196036.8 mm (1.4 in)
196146.5 mm (1.8 in)
196261.0 mm (2.4 in)
196331.2 mm (1.2 in)
196431.5 mm (1.2 in)
196560.2 mm (2.4 in)
196631.8 mm (1.3 in)
196738.1 mm (1.5 in)
196843.2 mm (1.7 in)
196963.5 mm (2.5 in)
197029.2 mm (1.1 in)
197138.1 mm (1.5 in)
197226.2 mm (1.0 in)
197334.0 mm (1.3 in)
197437.8 mm (1.5 in)
197530.0 mm (1.2 in)
197615.2 mm (0.6 in)
197743.9 mm (1.7 in)
197856.6 mm (2.2 in)
197933.0 mm (1.3 in)
198039.1 mm (1.5 in)
198143.7 mm (1.7 in)
198244.2 mm (1.7 in)
198345.2 mm (1.8 in)
198729.7 mm (1.2 in)
198835.6 mm (1.4 in)
198955.1 mm (2.2 in)
199031.8 mm (1.3 in)
199140.9 mm (1.6 in)
199242.7 mm (1.7 in)
199328.4 mm (1.1 in)
199451.1 mm (2.0 in)
199538.4 mm (1.5 in)
199667.3 mm (2.6 in)
199743.4 mm (1.7 in)
199881.8 mm (3.2 in)
199937.8 mm (1.5 in)
200042.7 mm (1.7 in)
200154.1 mm (2.1 in)
200287.6 mm (3.4 in)
200337.8 mm (1.5 in)
200481.3 mm (3.2 in)
200549.0 mm (1.9 in)
200666.0 mm (2.6 in)
200755.9 mm (2.2 in)
200891.4 mm (3.6 in)
200955.9 mm (2.2 in)
201047.5 mm (1.9 in)
201171.1 mm (2.8 in)
201269.8 mm (2.7 in)
201340.9 mm (1.6 in)
201457.9 mm (2.3 in)
201543.2 mm (1.7 in)
201636.3 mm (1.4 in)
201733.0 mm (1.3 in)
201849.8 mm (2.0 in)
201940.6 mm (1.6 in)
202024.6 mm (1.0 in)
202118.5 mm (0.7 in)
202250.8 mm (2.0 in)
202345.7 mm (1.8 in)
202445.7 mm (1.8 in)
202536.3 mm (1.4 in)
202691.9 mm (3.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Genoa by year The wettest five days of the year at Genoa, 1940 to 2026. The record is 118.4 mm (4.7 in) in 2008, marked on the chart; the median year is 60.5 mm (2.4 in). 025507510012519401960198020002020Record: 118.4 mm (4.7 in) in 2008
The wettest five days of the year at Genoa, 1940 to 2026. The record is 118.4 mm (4.7 in) in 2008, marked on the chart; the median year is 60.5 mm (2.4 in).
Wettest five days (Rx5day) at Genoa by year
YearWettest five days (Rx5day)
194026.2 mm (1.0 in)
194192.4 mm (3.6 in)
1942107.4 mm (4.2 in)
194361.2 mm (2.4 in)
194444.9 mm (1.8 in)
194540.2 mm (1.6 in)
1946101.9 mm (4.0 in)
194767.4 mm (2.7 in)
194834.8 mm (1.4 in)
194968.5 mm (2.7 in)
195043.1 mm (1.7 in)
195144.0 mm (1.7 in)
195266.1 mm (2.6 in)
195334.3 mm (1.4 in)
195434.3 mm (1.4 in)
195597.3 mm (3.8 in)
195630.0 mm (1.2 in)
195747.5 mm (1.9 in)
195864.6 mm (2.5 in)
195944.4 mm (1.7 in)
196099.5 mm (3.9 in)
196155.6 mm (2.2 in)
196280.1 mm (3.2 in)
196349.2 mm (1.9 in)
196459.7 mm (2.4 in)
196581.1 mm (3.2 in)
196666.8 mm (2.6 in)
196753.1 mm (2.1 in)
196854.9 mm (2.2 in)
196968.0 mm (2.7 in)
197036.1 mm (1.4 in)
197147.7 mm (1.9 in)
197238.4 mm (1.5 in)
197339.4 mm (1.6 in)
197451.0 mm (2.0 in)
197553.4 mm (2.1 in)
197621.4 mm (0.8 in)
197754.8 mm (2.2 in)
197871.9 mm (2.8 in)
197948.7 mm (1.9 in)
198072.9 mm (2.9 in)
198152.6 mm (2.1 in)
198257.3 mm (2.3 in)
198382.0 mm (3.2 in)
198774.4 mm (2.9 in)
198857.2 mm (2.3 in)
198979.0 mm (3.1 in)
199057.7 mm (2.3 in)
199149.1 mm (1.9 in)
199291.2 mm (3.6 in)
199348.0 mm (1.9 in)
199451.1 mm (2.0 in)
199545.5 mm (1.8 in)
199683.6 mm (3.3 in)
199787.1 mm (3.4 in)
1998105.9 mm (4.2 in)
199995.0 mm (3.7 in)
200069.9 mm (2.8 in)
200169.2 mm (2.7 in)
200293.2 mm (3.7 in)
200368.3 mm (2.7 in)
200485.7 mm (3.4 in)
200579.0 mm (3.1 in)
200669.0 mm (2.7 in)
200757.2 mm (2.3 in)
2008118.4 mm (4.7 in)
200966.1 mm (2.6 in)
201071.4 mm (2.8 in)
201174.9 mm (2.9 in)
201270.6 mm (2.8 in)
201352.5 mm (2.1 in)
201463.5 mm (2.5 in)
201565.5 mm (2.6 in)
201654.0 mm (2.1 in)
201749.8 mm (2.0 in)
201851.6 mm (2.0 in)
201959.2 mm (2.3 in)
202027.3 mm (1.1 in)
202126.9 mm (1.1 in)
202257.4 mm (2.3 in)
202386.4 mm (3.4 in)
202496.6 mm (3.8 in)
202561.7 mm (2.4 in)
202692.7 mm (3.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Genoa by year The longest dry spell of the year at Genoa, 1940 to 2026. The record is 74 days in 2016, marked on the chart; the median year is 35 days. 02040608019401960198020002020Record: 74 days in 2016
The longest dry spell of the year at Genoa, 1940 to 2026. The record is 74 days in 2016, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Genoa by year
YearLongest dry spell (CDD)
194031 days
194132 days
194225 days
194331 days
194429 days
194541 days
194631 days
194728 days
194834 days
194928 days
195060 days
195132 days
195236 days
195340 days
195451 days
195546 days
195636 days
195732 days
195839 days
195929 days
196044 days
196134 days
196230 days
196331 days
196438 days
196551 days
196633 days
196749 days
196822 days
196929 days
197034 days
197130 days
197228 days
197327 days
197429 days
197541 days
197631 days
197753 days
197827 days
197931 days
198062 days
198159 days
198267 days
198355 days
198730 days
198833 days
198936 days
199034 days
199150 days
199240 days
199347 days
199440 days
199551 days
199651 days
199737 days
199839 days
199939 days
200053 days
200119 days
200242 days
200333 days
200430 days
200524 days
200627 days
200720 days
200832 days
200928 days
201049 days
201143 days
201249 days
201339 days
201469 days
201532 days
201674 days
201771 days
201831 days
201941 days
202046 days
202134 days
202244 days
202345 days
202422 days
202527 days
202650 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.

Rainfall Return Levels

71 years, 1941 to 2025

A day with at least 39.7 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 101.7 mm (4.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Genoa: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years39.7 mm (1.6 in)
5 years54.3 mm (2.1 in)
10 years64.7 mm (2.5 in)
25 years78.8 mm (3.1 in)
50 years90.0 mm (3.5 in)
100 years101.7 mm (4.0 in)Longer than the 71 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, 71 years of values from 1941 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: 107.4 mm (4.2 in) in 1942; 91.4 mm (3.6 in) in 2008; 81.8 mm (3.2 in) in 1998.

Download the Data

  • Data for Genoa standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Genoa 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 (2026-10-12).