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Rosillo Weather Records (MXN00028081)

Record envelope, standing records and threshold days for Rosillo (MXN00028081), Mexico, with 52 years of record.

Key Facts for Rosillo

  • Rosillo (MXN00028081) is a weather station in Mexico at 22.92 latitude and -98.58 longitude, 98 m (321 ft) above sea level.
  • The station reports from 1961 to 2012, 52 years of record.
  • 1,464 records set at Rosillo still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Rosillo tied a daily record high maximum temperature of 32.8 C (91.0 F) on 18 December 2012.

About the Station

  • Location: Mexico, 22.92 latitude, -98.58 longitude.
  • Elevation: 98 m (321 ft).
  • Period of record: 1961 to 2012, 52 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 Rosillo, with 2026 drawn through them The band shows the record high and record low for each calendar day at Rosillo. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Rosillo. 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 Rosillo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan37.2 C (99.0 F)-2.2 C (28.0 F)n/an/a
Feb41.1 C (106.0 F)0.0 C (32.0 F)n/an/a
Mar46.7 C (116.1 F)0.6 C (33.1 F)n/an/a
Apr46.7 C (116.1 F)5.0 C (41.0 F)n/an/a
May46.7 C (116.1 F)10.0 C (50.0 F)n/an/a
Jun45.0 C (113.0 F)15.0 C (59.0 F)n/an/a
Jul42.8 C (109.0 F)16.1 C (61.0 F)n/an/a
Aug42.2 C (108.0 F)15.0 C (59.0 F)n/an/a
Sep41.7 C (107.1 F)11.1 C (52.0 F)n/an/a
Oct41.7 C (107.1 F)5.6 C (42.1 F)n/an/a
Nov38.9 C (102.0 F)0.0 C (32.0 F)n/an/a
Dec37.8 C (100.0 F)-4.4 C (24.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Rosillo by the year they were set 1,464 records at Rosillo still stand. 1985 holds the most, with 125. 0501001501961: 621962: 271963: 341964: 351965: 221966: 211967: 221968: 261969: 301970: 401971: 91972: 281973: 211974: 251975: 191976: 291977: 131978: 171979: 261980: 291981: 171982: 311983: 361984: 971985: 1251986: 661987: 321988: 141989: 501990: 111991: 191992: 211993: 391994: 221995: 251996: 141997: 241998: 181999: 142000: 202001: 122002: 132003: 92004: 102005: 142006: 312007: 42008: 452009: 302010: 62011: 442012: 16196119671973197919851991199720032009
1,464 records at Rosillo still stand. 1985 holds the most, with 125.
Standing records at Rosillo by the year they were set
Year setStanding records
196162
196227
196334
196435
196522
196621
196722
196826
196930
197040
19719
197228
197321
197425
197519
197629
197713
197817
197926
198029
198117
198231
198336
198497
1985125
198666
198732
198814
198950
199011
199119
199221
199339
199422
199525
199614
199724
199818
199914
200020
200112
200213
20039
200410
200514
200631
20074
200845
200930
20106
201144
201216

Wettest Day of Each Month

Sep: 220.0 mm (8.7 in)
Record daily precipitation for each month at Rosillo The wettest day on record for each calendar month at Rosillo. The most was 220.0 mm (8.7 in) on 9 September 1978. 0100200300 Jan: 43.4 mm (1.7 in), 6 January 1973 Jan Feb: 65.8 mm (2.6 in), 13 February 1998 Feb Mar: 84.8 mm (3.3 in), 23 March 1961 Mar Apr: 113.8 mm (4.5 in), 24 April 1985 Apr May: 99.8 mm (3.9 in), 14 May 2005 May Jun: 140.0 mm (5.5 in), 22 June 1997 Jun Jul: 119.9 mm (4.7 in), 4 July 2003 Jul Aug: 209.8 mm (8.3 in), 31 August 1994 Aug Sep: 220.0 mm (8.7 in), 9 September 1978 Sep Oct: 137.9 mm (5.4 in), 10 October 1966 Oct Nov: 56.9 mm (2.2 in), 19 November 2001 Nov Dec: 108.0 mm (4.3 in), 3 December 1979 Dec
The wettest day on record for each calendar month at Rosillo. The most was 220.0 mm (8.7 in) on 9 September 1978.
Record daily precipitation for each month at Rosillo
MonthRecord daily precipitation (mm)Date
Jan43.4 mm (1.7 in)6 January 1973
Feb65.8 mm (2.6 in)13 February 1998
Mar84.8 mm (3.3 in)23 March 1961
Apr113.8 mm (4.5 in)24 April 1985
May99.8 mm (3.9 in)14 May 2005
Jun140.0 mm (5.5 in)22 June 1997
Jul119.9 mm (4.7 in)4 July 2003
Aug209.8 mm (8.3 in)31 August 1994
Sep220.0 mm (8.7 in)9 September 1978
Oct137.9 mm (5.4 in)10 October 1966
Nov56.9 mm (2.2 in)19 November 2001
Dec108.0 mm (4.3 in)3 December 1979

Period of Record Coverage

1961 to 2012
Days with data per year at Rosillo 52 years of record at Rosillo, 1961 to 2012. 2 years have data for under 90 percent of days and are left out of rankings: 1980, 2010. 1961: 334 of 365 days1962: 362 of 365 days1963: 364 of 365 days1964: 361 of 366 days1965: 360 of 365 days1966: 361 of 365 days1967: 361 of 365 days1968: 365 of 366 days1969: 362 of 365 days1970: 361 of 365 days1971: 363 of 365 days1972: 362 of 366 days1973: 363 of 365 days1974: 364 of 365 days1975: 363 of 365 days1976: 363 of 366 days1977: 362 of 365 days1978: 357 of 365 days1979: 360 of 365 days1980: 325 of 366 days1981: 360 of 365 days1982: 364 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 364 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 335 of 366 days1989: 361 of 365 days1990: 362 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 363 of 365 days1994: 333 of 365 days1995: 361 of 365 days1996: 365 of 366 days1997: 363 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 364 of 366 days2001: 365 of 365 days2002: 362 of 365 days2003: 364 of 365 days2004: 362 of 366 days2005: 332 of 365 days2006: 345 of 365 days2007: 331 of 365 days2008: 364 of 366 days2009: 363 of 365 days2010: 90 of 365 days2011: 364 of 365 days2012: 352 of 366 days19701980199020002010
52 years of record at Rosillo, 1961 to 2012. 2 years have data for under 90 percent of days and are left out of rankings: 1980, 2010.
Days with data per year at Rosillo
YearDays with dataShare of yearComplete
196133492%Yes
196236299%Yes
1963364100%Yes
196436199%Yes
196536099%Yes
196636199%Yes
196736199%Yes
1968365100%Yes
196936299%Yes
197036199%Yes
197136399%Yes
197236299%Yes
197336399%Yes
1974364100%Yes
197536399%Yes
197636399%Yes
197736299%Yes
197835798%Yes
197936099%Yes
198032589%No
198136099%Yes
1982364100%Yes
198336399%Yes
1984366100%Yes
1985364100%Yes
1986365100%Yes
1987365100%Yes
198833592%Yes
198936199%Yes
199036299%Yes
1991365100%Yes
1992365100%Yes
199336399%Yes
199433391%Yes
199536199%Yes
1996365100%Yes
199736399%Yes
1998365100%Yes
1999365100%Yes
200036499%Yes
2001365100%Yes
200236299%Yes
2003364100%Yes
200436299%Yes
200533291%Yes
200634595%Yes
200733191%Yes
200836499%Yes
200936399%Yes
20109025%No
2011364100%Yes
201235296%Yes

Latest Records

20
Latest records at Rosillo
DateStationRecordValueBeat old record byOld record stoodSignificance
18 December 2012Rosillo, MXdaily high max (Tie)32.8 C (91.0 F)tie30 years3 of 100 (Routine)
23 November 2012Rosillo, MXdaily rain2.8 mm (0.11 in)1.0 mm (0.04 in)36 years15 of 100 (Routine)
21 September 2012Rosillo, MXdaily low min15.0 C (59.0 F)1.1 C (2.0 F)26 years16 of 100 (Routine)
13 September 2012Rosillo, MXdaily low max (Tie)27.8 C (82.0 F)tie42 years4 of 100 (Routine)
13 September 2012Rosillo, MXdaily low min (Tie)17.8 C (64.0 F)tie37 years4 of 100 (Routine)
12 September 2012Rosillo, MXdaily rain102.9 mm (4.1 in)77.0 mm (3.0 in)9 years44 of 100 (Notable)
11 September 2012Rosillo, MXdaily high max (Tie)37.8 C (100.0 F)tie31 years3 of 100 (Routine)
6 September 2012Rosillo, MXdaily high max (Tie)40.0 C (104.0 F)tie19 years2 of 100 (Routine)
29 August 2012Rosillo, MXdaily low min (Tie)20.0 C (68.0 F)tie47 years4 of 100 (Routine)
29 August 2012Rosillo, MXdaily high max (Tie)40.0 C (104.0 F)tie19 years2 of 100 (Routine)
28 August 2012Rosillo, MXdaily low min18.9 C (66.0 F)1.1 C (2.0 F)44 years24 of 100 (Routine)
27 August 2012Rosillo, MXdaily low min (Tie)17.8 C (64.0 F)tie1 year1 of 100 (Routine)
25 August 2012Rosillo, MXdaily low min18.9 C (66.0 F)1.1 C (2.0 F)44 years24 of 100 (Routine)
22 August 2012Rosillo, MXdaily low min (Tie)18.9 C (66.0 F)tie4 years1 of 100 (Routine)
21 August 2012Rosillo, MXdaily low min (Tie)18.9 C (66.0 F)tie51 years5 of 100 (Routine)
18 August 2012Rosillo, MXdaily low min (Tie)20.0 C (68.0 F)tie51 years5 of 100 (Routine)
10 August 2012Rosillo, MXdaily low min (Tie)20.0 C (68.0 F)tie47 years4 of 100 (Routine)
9 August 2012Rosillo, MXdaily low min (Tie)20.0 C (68.0 F)tie47 years4 of 100 (Routine)
29 July 2012Rosillo, MXdaily low min (Tie)20.0 C (68.0 F)tie51 years5 of 100 (Routine)
26 July 2012Rosillo, MXmonthly high max (Tie)42.8 C (109.0 F)tie0 years3 of 100 (Routine)

Climate Trend

43 complete years, 1962 to 2011
Annual mean temperature at Rosillo as warming stripes, 1962 to 2011 One stripe for each of 43 complete years at Rosillo, 1962 to 2011. Blue stripes are years cooler than the station's own mean of 24.7 C (76.5 F); red stripes are warmer. The coolest year was 1976, at 23.0 C (73.3 F), and the warmest was 1985, at 27.4 C (81.3 F). The strongest colour marks a difference of 2.7 C (4.9 F). 1962: 25.0 C, +0.3 C from the station mean1963: 24.4 C, -0.3 C from the station mean1964: 24.6 C, -0.1 C from the station mean1965: 24.4 C, -0.3 C from the station mean1966: 23.5 C, -1.3 C from the station mean1967: 23.9 C, -0.8 C from the station mean1968: 23.5 C, -1.2 C from the station mean1969: 24.5 C, -0.2 C from the station mean1970: 23.4 C, -1.3 C from the station mean1971: 24.5 C, -0.2 C from the station mean1972: 23.6 C, -1.2 C from the station mean1973: 23.6 C, -1.1 C from the station mean1974: 23.7 C, -1.0 C from the station mean1975: 23.7 C, -1.0 C from the station mean1976: 23.0 C, -1.8 C from the station mean1977: 24.3 C, -0.4 C from the station mean1978: 24.8 C, +0.1 C from the station mean1979: 24.9 C, +0.2 C from the station mean1981: 25.2 C, +0.5 C from the station mean1982: 26.0 C, +1.2 C from the station mean1983: 25.9 C, +1.1 C from the station mean1984: 26.2 C, +1.5 C from the station mean1985: 27.4 C, +2.7 C from the station mean1986: 26.4 C, +1.7 C from the station mean1987: 25.1 C, +0.3 C from the station mean1989: 24.4 C, -0.3 C from the station mean1990: 25.2 C, +0.5 C from the station mean1991: 25.3 C, +0.6 C from the station mean1992: 24.5 C, -0.2 C from the station mean1993: 25.8 C, +1.1 C from the station mean1995: 24.9 C, +0.1 C from the station mean1996: 24.5 C, -0.2 C from the station mean1997: 24.2 C, -0.5 C from the station mean1998: 25.7 C, +1.0 C from the station mean1999: 25.1 C, +0.4 C from the station mean2000: 25.1 C, +0.3 C from the station mean2001: 24.8 C, +0.1 C from the station mean2002: 24.7 C, 0.0 C from the station mean2003: 25.2 C, +0.5 C from the station mean2004: 25.1 C, +0.3 C from the station mean2008: 23.7 C, -1.0 C from the station mean2009: 24.3 C, -0.4 C from the station mean2011: 24.7 C, 0.0 C from the station mean19621965197019751980198519901995200020052010
One stripe for each of 43 complete years at Rosillo, 1962 to 2011. Blue stripes are years cooler than the station's own mean of 24.7 C (76.5 F); red stripes are warmer. The coolest year was 1976, at 23.0 C (73.3 F), and the warmest was 1985, at 27.4 C (81.3 F). The strongest colour marks a difference of 2.7 C (4.9 F).
Annual mean temperature at Rosillo as warming stripes, 1962 to 2011
YearAnnual mean temperatureDifference from the station mean
196225.0 C+0.33 C
196324.4 C-0.34 C
196424.6 C-0.11 C
196524.4 C-0.27 C
196623.5 C-1.25 C
196723.9 C-0.81 C
196823.5 C-1.22 C
196924.5 C-0.17 C
197023.4 C-1.29 C
197124.5 C-0.20 C
197223.6 C-1.16 C
197323.6 C-1.07 C
197423.7 C-0.98 C
197523.7 C-0.97 C
197623.0 C-1.75 C
197724.3 C-0.42 C
197824.8 C+0.06 C
197924.9 C+0.18 C
198125.2 C+0.49 C
198226.0 C+1.24 C
198325.9 C+1.15 C
198426.2 C+1.53 C
198527.4 C+2.66 C
198626.4 C+1.70 C
198725.1 C+0.34 C
198924.4 C-0.30 C
199025.2 C+0.50 C
199125.3 C+0.62 C
199224.5 C-0.20 C
199325.8 C+1.11 C
199524.9 C+0.15 C
199624.5 C-0.18 C
199724.2 C-0.51 C
199825.7 C+1.03 C
199925.1 C+0.36 C
200025.1 C+0.35 C
200124.8 C+0.06 C
200224.7 C+0.02 C
200325.2 C+0.52 C
200425.1 C+0.35 C
200823.7 C-1.01 C
200924.3 C-0.43 C
201124.7 C-0.01 C

The annual mean temperature here has risen by 0.19 C (0.00 to 0.39) per decade over 1962 to 2011. In Fahrenheit: 0.35 F (0.01 to 0.69) per decade. The slope is a straight line fitted to 43 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Rosillo
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.19 C (0.00 to 0.39) per decade0.35 F (0.01 to 0.69) per decade1962 to 201143Rise
Mean daily maximum0.4 C (0.2 to 0.6) per decade0.7 F (0.3 to 1.2) per decade1962 to 201143Rise
Mean daily minimum-0.01 C (-0.25 to 0.22) per decade-0.02 F (-0.45 to 0.40) per decade1962 to 201143Not 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

1961 to 2012
Yearly extremes at Rosillo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.7 C (116.1 F)196142.8 C (109.0 F)52
Coldest night (TNn)-4.4 C (24.1 F)19891.7 C (35.1 F)52
Wettest day (Rx1day)220.0 mm (8.7 in)197881.8 mm (3.2 in)52
Wettest five days (Rx5day)353.3 mm (13.9 in)2008133.0 mm (5.2 in)52
Longest dry spell (CDD)137 days199962 days52

Hottest day (TXx)

Hottest day (TXx) at Rosillo by year The hottest day of the year at Rosillo, 1961 to 2012. The record is 46.7 C (116.1 F) in 1961, marked on the chart; the median year is 42.8 C (109.0 F). 37.54042.54547.519701980199020002010Record: 46.7 C (116.1 F) in 1961
The hottest day of the year at Rosillo, 1961 to 2012. The record is 46.7 C (116.1 F) in 1961, marked on the chart; the median year is 42.8 C (109.0 F).
Hottest day (TXx) at Rosillo by year
YearHottest day (TXx)
196146.7 C (116.1 F)
196245.0 C (113.0 F)
196341.1 C (106.0 F)
196445.0 C (113.0 F)
196541.7 C (107.1 F)
196641.7 C (107.1 F)
196743.9 C (111.0 F)
196838.9 C (102.0 F)
196945.0 C (113.0 F)
197040.0 C (104.0 F)
197142.8 C (109.0 F)
197238.9 C (102.0 F)
197343.9 C (111.0 F)
197443.3 C (109.9 F)
197542.8 C (109.0 F)
197640.6 C (105.1 F)
197742.2 C (108.0 F)
197844.4 C (111.9 F)
197945.6 C (114.1 F)
198043.9 C (111.0 F)
198141.7 C (107.1 F)
198241.7 C (107.1 F)
198345.0 C (113.0 F)
198445.6 C (114.1 F)
198542.2 C (108.0 F)
198642.8 C (109.0 F)
198740.6 C (105.1 F)
198842.2 C (108.0 F)
198941.7 C (107.1 F)
199041.7 C (107.1 F)
199146.7 C (116.1 F)
199242.8 C (109.0 F)
199346.7 C (116.1 F)
199441.7 C (107.1 F)
199543.9 C (111.0 F)
199640.0 C (104.0 F)
199738.9 C (102.0 F)
199845.0 C (113.0 F)
199946.7 C (116.1 F)
200041.7 C (107.1 F)
200140.6 C (105.1 F)
200240.6 C (105.1 F)
200345.6 C (114.1 F)
200445.0 C (113.0 F)
200541.7 C (107.1 F)
200643.9 C (111.0 F)
200740.6 C (105.1 F)
200845.0 C (113.0 F)
200942.8 C (109.0 F)
201037.8 C (100.0 F)
201145.0 C (113.0 F)
201242.8 C (109.0 F)

Coldest night (TNn)

Coldest night (TNn) at Rosillo by year The coldest night of the year at Rosillo, 1961 to 2012. The record is -4.4 C (24.1 F) in 1989, marked on the chart; the median year is 1.7 C (35.1 F). -5051019701980199020002010Record: -4.4 C (24.1 F) in 1989
The coldest night of the year at Rosillo, 1961 to 2012. The record is -4.4 C (24.1 F) in 1989, marked on the chart; the median year is 1.7 C (35.1 F).
Coldest night (TNn) at Rosillo by year
YearColdest night (TNn)
19615.0 C (41.0 F)
19620.0 C (32.0 F)
1963-0.6 C (30.9 F)
19640.0 C (32.0 F)
19650.0 C (32.0 F)
19660.0 C (32.0 F)
19670.0 C (32.0 F)
19680.6 C (33.1 F)
19692.8 C (37.0 F)
19700.0 C (32.0 F)
19710.6 C (33.1 F)
19723.9 C (39.0 F)
1973-2.2 C (28.0 F)
19740.6 C (33.1 F)
1975-2.2 C (28.0 F)
19760.0 C (32.0 F)
19774.4 C (39.9 F)
19785.0 C (41.0 F)
19792.8 C (37.0 F)
19805.6 C (42.1 F)
19815.6 C (42.1 F)
19823.9 C (39.0 F)
1983-1.1 C (30.0 F)
19845.0 C (41.0 F)
19852.2 C (36.0 F)
19863.9 C (39.0 F)
19871.1 C (34.0 F)
19881.1 C (34.0 F)
1989-4.4 C (24.1 F)
19902.8 C (37.0 F)
19916.7 C (44.1 F)
19923.9 C (39.0 F)
19932.8 C (37.0 F)
19945.6 C (42.1 F)
19955.0 C (41.0 F)
19960.6 C (33.1 F)
19970.6 C (33.1 F)
19985.6 C (42.1 F)
19995.0 C (41.0 F)
20001.7 C (35.1 F)
20011.7 C (35.1 F)
20025.0 C (41.0 F)
20032.8 C (37.0 F)
20041.7 C (35.1 F)
20057.8 C (46.0 F)
20065.0 C (41.0 F)
20070.6 C (33.1 F)
20080.6 C (33.1 F)
20092.8 C (37.0 F)
20100.0 C (32.0 F)
20110.0 C (32.0 F)
20120.0 C (32.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Rosillo by year The wettest day of the year at Rosillo, 1961 to 2012. The record is 220.0 mm (8.7 in) in 1978, marked on the chart; the median year is 81.8 mm (3.2 in). 05010015020025019701980199020002010Record: 220.0 mm (8.7 in) in 1978
The wettest day of the year at Rosillo, 1961 to 2012. The record is 220.0 mm (8.7 in) in 1978, marked on the chart; the median year is 81.8 mm (3.2 in).
Wettest day (Rx1day) at Rosillo by year
YearWettest day (Rx1day)
196184.8 mm (3.3 in)
1962110.0 mm (4.3 in)
196334.8 mm (1.4 in)
196451.8 mm (2.0 in)
196555.9 mm (2.2 in)
1966137.9 mm (5.4 in)
196770.9 mm (2.8 in)
196851.8 mm (2.0 in)
196970.9 mm (2.8 in)
197081.8 mm (3.2 in)
197151.8 mm (2.0 in)
197245.0 mm (1.8 in)
1973127.0 mm (5.0 in)
1974140.0 mm (5.5 in)
1975106.9 mm (4.2 in)
1976104.4 mm (4.1 in)
197788.9 mm (3.5 in)
1978220.0 mm (8.7 in)
1979108.0 mm (4.3 in)
198084.8 mm (3.3 in)
198165.8 mm (2.6 in)
198278.0 mm (3.1 in)
198348.8 mm (1.9 in)
198471.9 mm (2.8 in)
1985113.8 mm (4.5 in)
198673.9 mm (2.9 in)
198768.8 mm (2.7 in)
198896.8 mm (3.8 in)
198971.9 mm (2.8 in)
199066.8 mm (2.6 in)
199181.8 mm (3.2 in)
199284.8 mm (3.3 in)
1993135.9 mm (5.4 in)
1994209.8 mm (8.3 in)
199599.8 mm (3.9 in)
199679.8 mm (3.1 in)
1997140.0 mm (5.5 in)
199865.8 mm (2.6 in)
1999112.8 mm (4.4 in)
2000105.9 mm (4.2 in)
200169.9 mm (2.8 in)
200283.8 mm (3.3 in)
2003119.9 mm (4.7 in)
200462.0 mm (2.4 in)
200599.8 mm (3.9 in)
200662.0 mm (2.4 in)
200766.8 mm (2.6 in)
2008112.8 mm (4.4 in)
200963.8 mm (2.5 in)
201032.8 mm (1.3 in)
201172.9 mm (2.9 in)
2012102.9 mm (4.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Rosillo by year The wettest five days of the year at Rosillo, 1961 to 2012. The record is 353.3 mm (13.9 in) in 2008, marked on the chart; the median year is 133.0 mm (5.2 in). 010020030040019701980199020002010Record: 353.3 mm (13.9 in) in 2008
The wettest five days of the year at Rosillo, 1961 to 2012. The record is 353.3 mm (13.9 in) in 2008, marked on the chart; the median year is 133.0 mm (5.2 in).
Wettest five days (Rx5day) at Rosillo by year
YearWettest five days (Rx5day)
1961168.6 mm (6.6 in)
1962242.5 mm (9.5 in)
196362.0 mm (2.4 in)
1964118.9 mm (4.7 in)
196595.6 mm (3.8 in)
1966253.0 mm (10.0 in)
1967131.6 mm (5.2 in)
196871.4 mm (2.8 in)
1969116.6 mm (4.6 in)
1970185.8 mm (7.3 in)
1971113.8 mm (4.5 in)
1972130.1 mm (5.1 in)
1973347.2 mm (13.7 in)
1974173.0 mm (6.8 in)
1975210.3 mm (8.3 in)
1976230.0 mm (9.1 in)
1977213.6 mm (8.4 in)
1978266.0 mm (10.5 in)
1979171.6 mm (6.8 in)
1980115.3 mm (4.5 in)
1981175.1 mm (6.9 in)
198278.0 mm (3.1 in)
198388.2 mm (3.5 in)
198486.8 mm (3.4 in)
1985124.7 mm (4.9 in)
198681.8 mm (3.2 in)
1987128.3 mm (5.1 in)
1988158.5 mm (6.2 in)
198979.8 mm (3.1 in)
1990129.5 mm (5.1 in)
1991144.5 mm (5.7 in)
1992108.7 mm (4.3 in)
1993252.5 mm (9.9 in)
1994282.4 mm (11.1 in)
1995143.7 mm (5.7 in)
1996126.3 mm (5.0 in)
1997263.5 mm (10.4 in)
199878.8 mm (3.1 in)
1999209.1 mm (8.2 in)
2000134.3 mm (5.3 in)
200198.6 mm (3.9 in)
2002108.7 mm (4.3 in)
2003206.5 mm (8.1 in)
2004143.9 mm (5.7 in)
2005143.5 mm (5.6 in)
2006111.8 mm (4.4 in)
2007115.4 mm (4.5 in)
2008353.3 mm (13.9 in)
2009104.2 mm (4.1 in)
201064.4 mm (2.5 in)
2011199.4 mm (7.9 in)
2012166.7 mm (6.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Rosillo by year The longest dry spell of the year at Rosillo, 1961 to 2012. The record is 137 days in 1999, marked on the chart; the median year is 62 days. 05010015019701980199020002010Record: 137 days in 1999
The longest dry spell of the year at Rosillo, 1961 to 2012. The record is 137 days in 1999, marked on the chart; the median year is 62 days.
Longest dry spell (CDD) at Rosillo by year
YearLongest dry spell (CDD)
196168 days
196239 days
196346 days
196444 days
196533 days
196668 days
196770 days
196834 days
196974 days
197077 days
1971131 days
197267 days
197364 days
197446 days
197564 days
197689 days
197761 days
197853 days
197974 days
198035 days
198175 days
198247 days
198373 days
198496 days
198557 days
198664 days
198743 days
198881 days
198956 days
199074 days
199149 days
199248 days
199357 days
199451 days
199568 days
199662 days
199780 days
1998106 days
1999137 days
200059 days
200196 days
200249 days
200362 days
200458 days
200556 days
200636 days
200753 days
200873 days
200935 days
201041 days
2011119 days
201241 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

49 years, 1961 to 2012

A day with at least 82.8 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 221.9 mm (8.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Rosillo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years82.8 mm (3.3 in)
5 years114.3 mm (4.5 in)
10 years137.3 mm (5.4 in)
25 years168.9 mm (6.6 in)
50 years194.6 mm (7.7 in)Longer than the 49 years of record
100 years221.9 mm (8.7 in)Longer than the 49 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, 49 years of values from 1961 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: 220.0 mm (8.7 in) in 1978; 209.8 mm (8.3 in) in 1994; 140.0 mm (5.5 in) in 1974.

Download the Data

  • Data for Rosillo standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Rosillo 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

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