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Cerano Weather Records (MXN00011010)

Record envelope, standing records and threshold days for Cerano (MXN00011010), Mexico, with 51 years of record.

Key Facts for Cerano

  • Cerano (MXN00011010) is a weather station in Mexico at 20.10 latitude and -101.38 longitude, 1,909 m (6,263 ft) above sea level.
  • The station reports from 1962 to 2012, 51 years of record.
  • 1,464 records set at Cerano still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Cerano set a daily record low maximum temperature of 17.8 C (64.0 F) on 12 December 2012.

About the Station

  • Location: Mexico, 20.10 latitude, -101.38 longitude.
  • Elevation: 1,909 m (6,263 ft).
  • Period of record: 1962 to 2012, 51 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Cerano, with 2026 drawn through them The band shows the record high and record low for each calendar day at Cerano. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Cerano. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Cerano, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.1 C (88.0 F)-5.0 C (23.0 F)n/an/a
Feb32.2 C (90.0 F)-2.8 C (27.0 F)n/an/a
Mar35.0 C (95.0 F)0.0 C (32.0 F)n/an/a
Apr36.7 C (98.1 F)2.8 C (37.0 F)n/an/a
May36.7 C (98.1 F)2.2 C (36.0 F)n/an/a
Jun37.2 C (99.0 F)2.8 C (37.0 F)n/an/a
Jul33.9 C (93.0 F)2.2 C (36.0 F)n/an/a
Aug31.7 C (89.1 F)3.3 C (37.9 F)n/an/a
Sep31.1 C (88.0 F)1.7 C (35.1 F)n/an/a
Oct31.7 C (89.1 F)1.7 C (35.1 F)n/an/a
Nov31.7 C (89.1 F)-3.3 C (26.1 F)n/an/a
Dec31.1 C (88.0 F)-2.8 C (27.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Cerano by the year they were set 1,464 records at Cerano still stand. 1995 holds the most, with 137. 0501001501962: 351963: 231964: 131965: 241966: 211967: 231968: 171969: 531970: 301971: 121972: 341973: 341974: 61975: 221976: 241977: 221978: 141979: 221980: 151981: 181982: 81983: 311984: 441985: 491986: 151987: 221988: 551989: 331990: 751991: 641992: 611994: 501995: 1371996: 271997: 291998: 111999: 92000: 562001: 232002: 122003: 212004: 152005: 102006: 152007: 212008: 102009: 272010: 372011: 212012: 141962196719721977198219871992199820032008
1,464 records at Cerano still stand. 1995 holds the most, with 137.
Standing records at Cerano by the year they were set
Year setStanding records
196235
196323
196413
196524
196621
196723
196817
196953
197030
197112
197234
197334
19746
197522
197624
197722
197814
197922
198015
198118
19828
198331
198444
198549
198615
198722
198855
198933
199075
199164
199261
199450
1995137
199627
199729
199811
19999
200056
200123
200212
200321
200415
200510
200615
200721
200810
200927
201037
201121
201214

All-Time Record Progression

3 new records
When Cerano set new all-time records 3 all-time records were set at Cerano between 2 May 1995 and 24 August 2006. Each dot is a new record. Record high minimum temperatureRecord daily precipitation2 May 1995: Record high minimum temperature 23.9 C (75.0 F)18 May 1995: Record high minimum temperature 25.0 C (77.0 F)24 August 2006: Record daily precipitation 77.2 mm (3.0 in)199520002005
3 all-time records were set at Cerano between 2 May 1995 and 24 August 2006. Each dot is a new record.
When Cerano set new all-time records
DateKindDetail
1995-05-02Record high minimum temperatureRecord high minimum temperature 23.9 C (75.0 F)
1995-05-18Record high minimum temperatureRecord high minimum temperature 25.0 C (77.0 F)
2006-08-24Record daily precipitationRecord daily precipitation 77.2 mm (3.0 in)

Wettest Day of Each Month

Aug: 77.2 mm (3.0 in)
Record daily precipitation for each month at Cerano The wettest day on record for each calendar month at Cerano. The most was 77.2 mm (3.0 in) on 24 August 2006. 020406080 Jan: 64.8 mm (2.6 in), 7 January 1991 Jan Feb: 57.7 mm (2.3 in), 4 February 2010 Feb Mar: 24.4 mm (1.0 in), 23 March 1976 Mar Apr: 16.3 mm (0.6 in), 17 April 1972 Apr May: 43.9 mm (1.7 in), 21 May 1967 May Jun: 55.4 mm (2.2 in), 1 June 1972 Jun Jul: 73.9 mm (2.9 in), 20 July 1970 Jul Aug: 77.2 mm (3.0 in), 24 August 2006 Aug Sep: 64.8 mm (2.6 in), 5 September 1965 Sep Oct: 55.4 mm (2.2 in), 3 October 2006 Oct Nov: 32.3 mm (1.3 in), 4 November 1994 Nov Dec: 35.8 mm (1.4 in), 12 December 1982 Dec
The wettest day on record for each calendar month at Cerano. The most was 77.2 mm (3.0 in) on 24 August 2006.
Record daily precipitation for each month at Cerano
MonthRecord daily precipitation (mm)Date
Jan64.8 mm (2.6 in)7 January 1991
Feb57.7 mm (2.3 in)4 February 2010
Mar24.4 mm (1.0 in)23 March 1976
Apr16.3 mm (0.6 in)17 April 1972
May43.9 mm (1.7 in)21 May 1967
Jun55.4 mm (2.2 in)1 June 1972
Jul73.9 mm (2.9 in)20 July 1970
Aug77.2 mm (3.0 in)24 August 2006
Sep64.8 mm (2.6 in)5 September 1965
Oct55.4 mm (2.2 in)3 October 2006
Nov32.3 mm (1.3 in)4 November 1994
Dec35.8 mm (1.4 in)12 December 1982

Period of Record Coverage

1962 to 2012
Days with data per year at Cerano 50 years of record at Cerano, 1962 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1962, 1983, 1986, 1992, 1994, 1999. 1962: 271 of 365 days1963: 365 of 365 days1964: 365 of 366 days1965: 364 of 365 days1966: 334 of 365 days1967: 351 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 335 of 365 days1971: 363 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 365 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 181 of 365 days1984: 365 of 366 days1985: 365 of 365 days1986: 271 of 365 days1987: 365 of 365 days1988: 361 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 328 of 366 days1994: 304 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 335 of 365 days1998: 365 of 365 days1999: 89 of 365 days2000: 364 of 366 days2001: 332 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 337 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days19701980199020002010
50 years of record at Cerano, 1962 to 2012. 6 years have data for under 90 percent of days and are left out of rankings: 1962, 1983, 1986, 1992, 1994, 1999.
Days with data per year at Cerano
YearDays with dataShare of yearComplete
196227174%No
1963365100%Yes
1964365100%Yes
1965364100%Yes
196633492%Yes
196735196%Yes
1968365100%Yes
1969365100%Yes
197033592%Yes
197136399%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976365100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981364100%Yes
1982365100%Yes
198318150%No
1984365100%Yes
1985365100%Yes
198627174%No
1987365100%Yes
198836199%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
199232890%No
199430483%No
1995365100%Yes
1996365100%Yes
199733592%Yes
1998365100%Yes
19998924%No
200036499%Yes
200133291%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
200833792%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes

Latest Records

20
Latest records at Cerano
DateStationRecordValueBeat old record byOld record stoodSignificance
12 December 2012Cerano, MXdaily low max17.8 C (64.0 F)1.1 C (2.0 F)35 years19 of 100 (Routine)
11 December 2012Cerano, MXdaily high min11.1 C (52.0 F)1.1 C (2.0 F)24 years16 of 100 (Routine)
6 November 2012Cerano, MXdaily low max17.2 C (63.0 F)2.2 C (4.0 F)2 years13 of 100 (Routine)
27 October 2012Cerano, MXdaily high max (Tie)30.0 C (86.0 F)tie42 years4 of 100 (Routine)
20 October 2012Cerano, MXdaily high max (Tie)30.0 C (86.0 F)tie33 years3 of 100 (Routine)
19 October 2012Cerano, MXdaily high max (Tie)30.0 C (86.0 F)tie43 years4 of 100 (Routine)
28 September 2012Cerano, MXdaily rain36.6 mm (1.4 in)3.8 mm (0.15 in)20 years14 of 100 (Routine)
31 August 2012Cerano, MXdaily high min (Tie)15.6 C (60.1 F)tie42 years4 of 100 (Routine)
26 August 2012Cerano, MXdaily rain54.1 mm (2.1 in)26.2 mm (1.0 in)36 years41 of 100 (Notable)
21 August 2012Cerano, MXdaily high min (Tie)15.0 C (59.0 F)tie50 years5 of 100 (Routine)
20 August 2012Cerano, MXdaily low max21.7 C (71.1 F)0.5 C (0.9 F)23 years13 of 100 (Routine)
11 August 2012Cerano, MXdaily high min (Tie)15.0 C (59.0 F)tie49 years4 of 100 (Routine)
11 August 2012Cerano, MXdaily low max (Tie)21.1 C (70.0 F)tie33 years3 of 100 (Routine)
15 July 2012Cerano, MXdaily low max20.6 C (69.1 F)2.7 C (4.9 F)31 years25 of 100 (Routine)
13 July 2012Cerano, MXdaily high min (Tie)15.0 C (59.0 F)tie50 years5 of 100 (Routine)
1 July 2012Cerano, MXdaily rain51.3 mm (2.0 in)12.4 mm (0.5 in)3 years16 of 100 (Routine)
25 June 2012Cerano, MXdaily rain42.7 mm (1.7 in)17.8 mm (0.7 in)36 years33 of 100 (Routine)
22 June 2012Cerano, MXdaily low max21.7 C (71.1 F)0.5 C (0.9 F)41 years18 of 100 (Routine)
3 June 2012Cerano, MXdaily rain25.4 mm (1.0 in)13.5 mm (0.5 in)49 years33 of 100 (Routine)
3 May 2012Cerano, MXdaily high max (Tie)35.0 C (95.0 F)tie40 years4 of 100 (Routine)

Climate Trend

37 complete years, 1963 to 2012
Annual mean temperature at Cerano as warming stripes, 1963 to 2012 One stripe for each of 37 complete years at Cerano, 1963 to 2012. Blue stripes are years cooler than the station's own mean of 18.2 C (64.7 F); red stripes are warmer. The coolest year was 1985, at 16.4 C (61.5 F), and the warmest was 1969, at 19.6 C (67.3 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1963: 18.6 C, +0.4 C from the station mean1964: 18.6 C, +0.5 C from the station mean1965: 18.4 C, +0.3 C from the station mean1968: 18.5 C, +0.3 C from the station mean1969: 19.6 C, +1.5 C from the station mean1971: 18.8 C, +0.7 C from the station mean1972: 19.1 C, +1.0 C from the station mean1973: 18.7 C, +0.6 C from the station mean1974: 18.3 C, +0.1 C from the station mean1975: 18.4 C, +0.2 C from the station mean1976: 17.9 C, -0.2 C from the station mean1977: 18.2 C, +0.1 C from the station mean1978: 18.2 C, 0.0 C from the station mean1979: 18.2 C, 0.0 C from the station mean1980: 18.3 C, +0.1 C from the station mean1981: 17.7 C, -0.4 C from the station mean1982: 18.8 C, +0.6 C from the station mean1984: 17.6 C, -0.6 C from the station mean1985: 16.4 C, -1.8 C from the station mean1987: 17.7 C, -0.4 C from the station mean1988: 19.1 C, +0.9 C from the station mean1989: 17.7 C, -0.4 C from the station mean1990: 16.8 C, -1.4 C from the station mean1995: 18.5 C, +0.4 C from the station mean1996: 17.2 C, -1.0 C from the station mean1998: 17.5 C, -0.7 C from the station mean2000: 16.7 C, -1.4 C from the station mean2002: 18.0 C, -0.2 C from the station mean2003: 18.2 C, +0.1 C from the station mean2004: 17.7 C, -0.5 C from the station mean2005: 18.3 C, +0.1 C from the station mean2006: 18.5 C, +0.3 C from the station mean2007: 18.2 C, 0.0 C from the station mean2009: 19.0 C, +0.8 C from the station mean2010: 17.9 C, -0.3 C from the station mean2011: 18.6 C, +0.4 C from the station mean2012: 18.3 C, +0.1 C from the station mean1963197019751980198519901995200020052010
One stripe for each of 37 complete years at Cerano, 1963 to 2012. Blue stripes are years cooler than the station's own mean of 18.2 C (64.7 F); red stripes are warmer. The coolest year was 1985, at 16.4 C (61.5 F), and the warmest was 1969, at 19.6 C (67.3 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Cerano as warming stripes, 1963 to 2012
YearAnnual mean temperatureDifference from the station mean
196318.6 C+0.38 C
196418.6 C+0.46 C
196518.4 C+0.25 C
196818.5 C+0.34 C
196919.6 C+1.46 C
197118.8 C+0.66 C
197219.1 C+0.96 C
197318.7 C+0.56 C
197418.3 C+0.09 C
197518.4 C+0.22 C
197617.9 C-0.25 C
197718.2 C+0.07 C
197818.2 C+0.03 C
197918.2 C+0.04 C
198018.3 C+0.14 C
198117.7 C-0.44 C
198218.8 C+0.58 C
198417.6 C-0.60 C
198516.4 C-1.80 C
198717.7 C-0.43 C
198819.1 C+0.89 C
198917.7 C-0.43 C
199016.8 C-1.41 C
199518.5 C+0.37 C
199617.2 C-0.97 C
199817.5 C-0.72 C
200016.7 C-1.43 C
200218.0 C-0.21 C
200318.2 C+0.07 C
200417.7 C-0.51 C
200518.3 C+0.09 C
200618.5 C+0.30 C
200718.2 C+0.02 C
200919.0 C+0.81 C
201017.9 C-0.26 C
201118.6 C+0.42 C
201218.3 C+0.13 C

The fitted trend in annual mean temperature here over 1963 to 2012 is -0.12 C (-0.27 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.22 F (-0.49 to 0.04) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Cerano
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.12 C (-0.27 to 0.02) per decade-0.22 F (-0.49 to 0.04) per decade1963 to 201237Not clearly different from zero
Mean daily maximum-0.04 C (-0.26 to 0.18) per decade-0.1 F (-0.5 to 0.3) per decade1963 to 201237Not clearly different from zero
Mean daily minimum-0.21 C (-0.41 to 0.00) per decade-0.37 F (-0.75 to 0.00) per decade1963 to 201237Fall

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

1962 to 2012
Yearly extremes at Cerano: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)196935.0 C (95.0 F)50
Coldest night (TNn)-5.0 C (23.0 F)19670.0 C (32.0 F)50
Wettest day (Rx1day)77.2 mm (3.0 in)200643.3 mm (1.7 in)50
Wettest five days (Rx5day)187.1 mm (7.4 in)197682.5 mm (3.2 in)50
Longest dry spell (CDD)177 days198965 days50

Hottest day (TXx)

Hottest day (TXx) at Cerano by year The hottest day of the year at Cerano, 1962 to 2012. The record is 37.2 C (99.0 F) in 1969, marked on the chart; the median year is 35.0 C (95.0 F). 303234363819701980199020002010Record: 37.2 C (99.0 F) in 1969
The hottest day of the year at Cerano, 1962 to 2012. The record is 37.2 C (99.0 F) in 1969, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Cerano by year
YearHottest day (TXx)
196235.6 C (96.1 F)
196335.0 C (95.0 F)
196435.6 C (96.1 F)
196535.0 C (95.0 F)
196635.0 C (95.0 F)
196736.7 C (98.1 F)
196835.0 C (95.0 F)
196937.2 C (99.0 F)
197036.1 C (97.0 F)
197136.7 C (98.1 F)
197236.1 C (97.0 F)
197336.1 C (97.0 F)
197435.0 C (95.0 F)
197535.6 C (96.1 F)
197635.0 C (95.0 F)
197733.9 C (93.0 F)
197835.0 C (95.0 F)
197935.0 C (95.0 F)
198036.1 C (97.0 F)
198135.0 C (95.0 F)
198235.0 C (95.0 F)
198333.9 C (93.0 F)
198435.0 C (95.0 F)
198531.1 C (88.0 F)
198631.1 C (88.0 F)
198732.8 C (91.0 F)
198835.0 C (95.0 F)
198935.0 C (95.0 F)
199035.0 C (95.0 F)
199131.1 C (88.0 F)
199232.2 C (90.0 F)
199430.6 C (87.1 F)
199532.2 C (90.0 F)
199632.2 C (90.0 F)
199731.1 C (88.0 F)
199830.0 C (86.0 F)
199932.2 C (90.0 F)
200035.0 C (95.0 F)
200131.7 C (89.1 F)
200235.0 C (95.0 F)
200335.6 C (96.1 F)
200433.9 C (93.0 F)
200536.1 C (97.0 F)
200635.0 C (95.0 F)
200735.0 C (95.0 F)
200835.0 C (95.0 F)
200935.0 C (95.0 F)
201036.1 C (97.0 F)
201136.1 C (97.0 F)
201235.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Cerano by year The coldest night of the year at Cerano, 1962 to 2012. The record is -5.0 C (23.0 F) in 1967, marked on the chart; the median year is 0.0 C (32.0 F). -5-2.502.5519701980199020002010Record: -5.0 C (23.0 F) in 1967
The coldest night of the year at Cerano, 1962 to 2012. The record is -5.0 C (23.0 F) in 1967, marked on the chart; the median year is 0.0 C (32.0 F).
Coldest night (TNn) at Cerano by year
YearColdest night (TNn)
19620.0 C (32.0 F)
1963-0.6 C (30.9 F)
19640.0 C (32.0 F)
19650.6 C (33.1 F)
19660.0 C (32.0 F)
1967-5.0 C (23.0 F)
19680.0 C (32.0 F)
19690.0 C (32.0 F)
19700.0 C (32.0 F)
19712.8 C (37.0 F)
1972-0.6 C (30.9 F)
1973-1.7 C (28.9 F)
1974-1.1 C (30.0 F)
1975-2.8 C (27.0 F)
1976-2.8 C (27.0 F)
19770.0 C (32.0 F)
19780.6 C (33.1 F)
19790.0 C (32.0 F)
19800.0 C (32.0 F)
1981-5.0 C (23.0 F)
19821.7 C (35.1 F)
19831.7 C (35.1 F)
19840.0 C (32.0 F)
19850.0 C (32.0 F)
19861.7 C (35.1 F)
19870.0 C (32.0 F)
19884.4 C (39.9 F)
19892.8 C (37.0 F)
19902.2 C (36.0 F)
19912.2 C (36.0 F)
19922.2 C (36.0 F)
19941.7 C (35.1 F)
19950.6 C (33.1 F)
19962.2 C (36.0 F)
19970.6 C (33.1 F)
19980.6 C (33.1 F)
19992.8 C (37.0 F)
20000.6 C (33.1 F)
20011.1 C (34.0 F)
20020.0 C (32.0 F)
2003-2.2 C (28.0 F)
2004-2.2 C (28.0 F)
20050.0 C (32.0 F)
2006-2.8 C (27.0 F)
20070.6 C (33.1 F)
2008-1.7 C (28.9 F)
20090.6 C (33.1 F)
2010-2.2 C (28.0 F)
2011-3.3 C (26.1 F)
20121.1 C (34.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Cerano by year The wettest day of the year at Cerano, 1962 to 2012. The record is 77.2 mm (3.0 in) in 2006, marked on the chart; the median year is 43.3 mm (1.7 in). 02040608019701980199020002010Record: 77.2 mm (3.0 in) in 2006
The wettest day of the year at Cerano, 1962 to 2012. The record is 77.2 mm (3.0 in) in 2006, marked on the chart; the median year is 43.3 mm (1.7 in).
Wettest day (Rx1day) at Cerano by year
YearWettest day (Rx1day)
196257.9 mm (2.3 in)
196345.0 mm (1.8 in)
196441.9 mm (1.6 in)
196564.8 mm (2.6 in)
196643.9 mm (1.7 in)
196743.9 mm (1.7 in)
196835.8 mm (1.4 in)
196963.8 mm (2.5 in)
197073.9 mm (2.9 in)
197145.0 mm (1.8 in)
197255.4 mm (2.2 in)
197371.9 mm (2.8 in)
197439.9 mm (1.6 in)
197529.0 mm (1.1 in)
197659.9 mm (2.4 in)
197740.9 mm (1.6 in)
197869.9 mm (2.8 in)
197959.9 mm (2.4 in)
198045.0 mm (1.8 in)
198159.9 mm (2.4 in)
198237.8 mm (1.5 in)
198331.5 mm (1.2 in)
198434.8 mm (1.4 in)
198543.7 mm (1.7 in)
198623.6 mm (0.9 in)
198731.8 mm (1.3 in)
198852.6 mm (2.1 in)
198918.3 mm (0.7 in)
199042.9 mm (1.7 in)
199164.8 mm (2.6 in)
199253.8 mm (2.1 in)
199439.9 mm (1.6 in)
199518.8 mm (0.7 in)
199640.4 mm (1.6 in)
199740.4 mm (1.6 in)
199837.8 mm (1.5 in)
19990.0 mm (0.00 in)
200021.3 mm (0.8 in)
200123.4 mm (0.9 in)
200233.3 mm (1.3 in)
200354.9 mm (2.2 in)
200435.1 mm (1.4 in)
200538.9 mm (1.5 in)
200677.2 mm (3.0 in)
200738.1 mm (1.5 in)
200840.4 mm (1.6 in)
200948.0 mm (1.9 in)
201057.7 mm (2.3 in)
201168.8 mm (2.7 in)
201254.1 mm (2.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Cerano by year The wettest five days of the year at Cerano, 1962 to 2012. The record is 187.1 mm (7.4 in) in 1976, marked on the chart; the median year is 82.5 mm (3.2 in). 05010015020019701980199020002010Record: 187.1 mm (7.4 in) in 1976
The wettest five days of the year at Cerano, 1962 to 2012. The record is 187.1 mm (7.4 in) in 1976, marked on the chart; the median year is 82.5 mm (3.2 in).
Wettest five days (Rx5day) at Cerano by year
YearWettest five days (Rx5day)
1962123.0 mm (4.8 in)
196376.0 mm (3.0 in)
196470.8 mm (2.8 in)
196587.4 mm (3.4 in)
196672.7 mm (2.9 in)
196777.5 mm (3.1 in)
196885.8 mm (3.4 in)
196970.2 mm (2.8 in)
1970134.1 mm (5.3 in)
197184.7 mm (3.3 in)
197282.1 mm (3.2 in)
1973174.6 mm (6.9 in)
197476.2 mm (3.0 in)
197564.9 mm (2.6 in)
1976187.1 mm (7.4 in)
197771.1 mm (2.8 in)
1978163.6 mm (6.4 in)
1979111.3 mm (4.4 in)
1980103.2 mm (4.1 in)
1981112.8 mm (4.4 in)
198285.9 mm (3.4 in)
198373.0 mm (2.9 in)
198499.9 mm (3.9 in)
198578.8 mm (3.1 in)
198637.3 mm (1.5 in)
198750.0 mm (2.0 in)
198885.6 mm (3.4 in)
198928.3 mm (1.1 in)
199071.4 mm (2.8 in)
1991150.2 mm (5.9 in)
199276.4 mm (3.0 in)
199458.0 mm (2.3 in)
199563.5 mm (2.5 in)
199686.3 mm (3.4 in)
199781.8 mm (3.2 in)
199863.5 mm (2.5 in)
19990.0 mm (0.00 in)
200071.4 mm (2.8 in)
200150.3 mm (2.0 in)
200284.9 mm (3.3 in)
2003102.9 mm (4.1 in)
200482.9 mm (3.3 in)
200591.2 mm (3.6 in)
2006113.9 mm (4.5 in)
200770.1 mm (2.8 in)
200888.7 mm (3.5 in)
200980.4 mm (3.2 in)
2010118.9 mm (4.7 in)
2011107.4 mm (4.2 in)
2012112.8 mm (4.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Cerano by year The longest dry spell of the year at Cerano, 1962 to 2012. The record is 177 days in 1989, marked on the chart; the median year is 65 days. 05010015020019701980199020002010Record: 177 days in 1989
The longest dry spell of the year at Cerano, 1962 to 2012. The record is 177 days in 1989, marked on the chart; the median year is 65 days.
Longest dry spell (CDD) at Cerano by year
YearLongest dry spell (CDD)
196224 days
196356 days
196452 days
196544 days
196667 days
196753 days
196829 days
196972 days
197067 days
197147 days
197237 days
197345 days
197463 days
197598 days
197633 days
197731 days
197849 days
197977 days
198041 days
198147 days
198257 days
198359 days
198466 days
198574 days
198695 days
1987111 days
1988123 days
1989177 days
199046 days
199134 days
199236 days
1994120 days
1995165 days
199664 days
199790 days
1998136 days
199990 days
200035 days
200198 days
200251 days
2003144 days
200441 days
200578 days
200683 days
200747 days
200881 days
2009116 days
201097 days
2011147 days
201275 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

45 years, 1963 to 2012

A day with at least 45.7 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 84.6 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Cerano: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years45.7 mm (1.8 in)
5 years59.2 mm (2.3 in)
10 years66.7 mm (2.6 in)
25 years74.8 mm (2.9 in)
50 years80.1 mm (3.2 in)Longer than the 45 years of record
100 years84.6 mm (3.3 in)Longer than the 45 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, 45 years of values from 1963 to 2012.

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: 77.2 mm (3.0 in) in 2006; 73.9 mm (2.9 in) in 1970; 71.9 mm (2.8 in) in 1973.

Download the Data

  • Data for Cerano standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Cerano 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).