Built 2026-10-19 (19 October 2026)

Zalayeta Weather Records (MXN00030198)

Record envelope, standing records and threshold days for Zalayeta (MXN00030198), Mexico, with 47 years of record.

Key Facts for Zalayeta

  • Zalayeta (MXN00030198) is a weather station in Mexico at 19.40 latitude and -97.38 longitude, 2,350 m (7,709 ft) above sea level.
  • The station reports from 1965 to 2011, 47 years of record.
  • 1,464 records set at Zalayeta still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Zalayeta set a daily record precipitation of 0.8 mm (0.03 in) on 31 December 2011.

About the Station

  • Location: Mexico, 19.40 latitude, -97.38 longitude.
  • Elevation: 2,350 m (7,709 ft).
  • Period of record: 1965 to 2011, 47 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 Zalayeta, with 2026 drawn through them The band shows the record high and record low for each calendar day at Zalayeta. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Zalayeta. 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 Zalayeta, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan27.8 C (82.0 F)-17.8 C (0.0 F)n/an/a
Feb30.0 C (86.0 F)-17.8 C (0.0 F)n/an/a
Mar32.8 C (91.0 F)-16.1 C (3.0 F)n/an/a
Apr33.9 C (93.0 F)-7.2 C (19.0 F)n/an/a
May35.0 C (95.0 F)-9.4 C (15.1 F)n/an/a
Jun33.9 C (93.0 F)-6.1 C (21.0 F)n/an/a
Jul30.0 C (86.0 F)-3.3 C (26.1 F)n/an/a
Aug30.0 C (86.0 F)-5.0 C (23.0 F)n/an/a
Sep30.0 C (86.0 F)-9.4 C (15.1 F)n/an/a
Oct30.0 C (86.0 F)-12.2 C (10.0 F)n/an/a
Nov28.9 C (84.0 F)-15.0 C (5.0 F)n/an/a
Dec27.8 C (82.0 F)-15.0 C (5.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Zalayeta by the year they were set 1,464 records at Zalayeta still stand. 1967 holds the most, with 66. 0204060801965: 571966: 631967: 661968: 571969: 371970: 501971: 641972: 311973: 421974: 471975: 511976: 461977: 481978: 321979: 351980: 171981: 151982: 241983: 241984: 241985: 191986: 531987: 251988: 291989: 321990: 241991: 291992: 361993: 141994: 191995: 241996: 221997: 451998: 541999: 112000: 92001: 202002: 132003: 172004: 72005: 102006: 102007: 112008: 132009: 312010: 242011: 331965197019751980198519901995200020052010
1,464 records at Zalayeta still stand. 1967 holds the most, with 66.
Standing records at Zalayeta by the year they were set
Year setStanding records
196557
196663
196766
196857
196937
197050
197164
197231
197342
197447
197551
197646
197748
197832
197935
198017
198115
198224
198324
198424
198519
198653
198725
198829
198932
199024
199129
199236
199314
199419
199524
199622
199745
199854
199911
20009
200120
200213
200317
20047
200510
200610
200711
200813
200931
201024
201133

All-Time Record Progression

2 new records
When Zalayeta set new all-time records 2 all-time records were set at Zalayeta between 4 October 1999 and 5 October 1999. Each dot is a new record. Record daily precipitation4 October 1999: Record daily precipitation 104.9 mm (4.1 in)5 October 1999: Record daily precipitation 127.8 mm (5.0 in)2000
2 all-time records were set at Zalayeta between 4 October 1999 and 5 October 1999. Each dot is a new record.
When Zalayeta set new all-time records
DateKindDetail
1999-10-04Record daily precipitationRecord daily precipitation 104.9 mm (4.1 in)
1999-10-05Record daily precipitationRecord daily precipitation 127.8 mm (5.0 in)

Wettest Day of Each Month

Oct: 127.8 mm (5.0 in)
Record daily precipitation for each month at Zalayeta The wettest day on record for each calendar month at Zalayeta. The most was 127.8 mm (5.0 in) on 5 October 1999. 050100150 Jan: 24.9 mm (1.0 in), 11 January 1984 Jan Feb: 18.8 mm (0.7 in), 11 February 1983 Feb Mar: 26.4 mm (1.0 in), 26 March 1992 Mar Apr: 25.9 mm (1.0 in), 28 April 1979 Apr May: 55.4 mm (2.2 in), 30 May 1974 May Jun: 56.9 mm (2.2 in), 6 June 1978 Jun Jul: 38.4 mm (1.5 in), 21 July 1990 Jul Aug: 49.8 mm (2.0 in), 26 August 2011 Aug Sep: 72.9 mm (2.9 in), 20 September 1976 Sep Oct: 127.8 mm (5.0 in), 5 October 1999 Oct Nov: 19.3 mm (0.8 in), 2 November 1977 Nov Dec: 27.4 mm (1.1 in), 30 December 1995 Dec
The wettest day on record for each calendar month at Zalayeta. The most was 127.8 mm (5.0 in) on 5 October 1999.
Record daily precipitation for each month at Zalayeta
MonthRecord daily precipitation (mm)Date
Jan24.9 mm (1.0 in)11 January 1984
Feb18.8 mm (0.7 in)11 February 1983
Mar26.4 mm (1.0 in)26 March 1992
Apr25.9 mm (1.0 in)28 April 1979
May55.4 mm (2.2 in)30 May 1974
Jun56.9 mm (2.2 in)6 June 1978
Jul38.4 mm (1.5 in)21 July 1990
Aug49.8 mm (2.0 in)26 August 2011
Sep72.9 mm (2.9 in)20 September 1976
Oct127.8 mm (5.0 in)5 October 1999
Nov19.3 mm (0.8 in)2 November 1977
Dec27.4 mm (1.1 in)30 December 1995

Period of Record Coverage

1965 to 2011
Days with data per year at Zalayeta 47 years of record at Zalayeta, 1965 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1965, 1966, 1969, 1999, 2009. 1965: 173 of 365 days1966: 304 of 365 days1967: 365 of 365 days1968: 365 of 366 days1969: 303 of 365 days1970: 332 of 365 days1971: 364 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 364 of 366 days1977: 361 of 365 days1978: 364 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 363 of 365 days1986: 364 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 334 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 271 of 365 days2000: 366 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 364 of 365 days2006: 333 of 365 days2007: 334 of 365 days2008: 335 of 366 days2009: 273 of 365 days2010: 364 of 365 days2011: 364 of 365 days19701980199020002010
47 years of record at Zalayeta, 1965 to 2011. 5 years have data for under 90 percent of days and are left out of rankings: 1965, 1966, 1969, 1999, 2009.
Days with data per year at Zalayeta
YearDays with dataShare of yearComplete
196517347%No
196630483%No
1967365100%Yes
1968365100%Yes
196930383%No
197033291%Yes
1971364100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
197636499%Yes
197736199%Yes
1978364100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
198336399%Yes
1984366100%Yes
198536399%Yes
1986364100%Yes
1987364100%Yes
1988366100%Yes
198933492%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997364100%Yes
1998365100%Yes
199927174%No
2000366100%Yes
2001364100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005364100%Yes
200633391%Yes
200733492%Yes
200833592%Yes
200927375%No
2010364100%Yes
2011364100%Yes

Latest Records

20
Latest records at Zalayeta
DateStationRecordValueBeat old record byOld record stoodSignificance
31 December 2011Zalayeta, MXdaily rain0.8 mm (0.03 in)0.8 mm (0.03 in)45 years18 of 100 (Routine)
16 December 2011Zalayeta, MXdaily high max26.7 C (80.1 F)1.1 C (2.0 F)16 years12 of 100 (Routine)
4 December 2011Zalayeta, MXdaily high max (Tie)25.6 C (78.1 F)tie16 years2 of 100 (Routine)
3 December 2011Zalayeta, MXmonthly high max (Tie)27.8 C (82.0 F)tie18 years4 of 100 (Routine)
2 December 2011Zalayeta, MXdaily low min-7.2 C (19.0 F)1.1 C (2.0 F)44 years19 of 100 (Routine)
1 December 2011Zalayeta, MXdaily low min-10.6 C (12.9 F)0.6 C (1.1 F)44 years18 of 100 (Routine)
30 November 2011Zalayeta, MXdaily low min-14.4 C (6.1 F)2.2 C (4.0 F)44 years22 of 100 (Routine)
29 November 2011Zalayeta, MXmonthly low min-15.0 C (5.0 F)0.6 C (1.1 F)44 years28 of 100 (Routine)
24 November 2011Zalayeta, MXdaily high max (Tie)25.0 C (77.0 F)tie44 years4 of 100 (Routine)
23 November 2011Zalayeta, MXdaily high max25.6 C (78.1 F)0.6 C (1.1 F)44 years18 of 100 (Routine)
21 November 2011Zalayeta, MXdaily high max26.7 C (80.1 F)1.1 C (2.0 F)6 years9 of 100 (Routine)
20 November 2011Zalayeta, MXdaily high max (Tie)25.6 C (78.1 F)tie45 years4 of 100 (Routine)
16 November 2011Zalayeta, MXdaily high max (Tie)25.6 C (78.1 F)tie25 years2 of 100 (Routine)
14 November 2011Zalayeta, MXdaily high max27.8 C (82.0 F)1.1 C (2.0 F)21 years13 of 100 (Routine)
13 November 2011Zalayeta, MXdaily high max (Tie)25.6 C (78.1 F)tie13 years2 of 100 (Routine)
8 November 2011Zalayeta, MXmonthly high max (Tie)28.9 C (84.0 F)tie15 years4 of 100 (Routine)
3 November 2011Zalayeta, MXdaily high max (Tie)25.6 C (78.1 F)tie38 years3 of 100 (Routine)
2 November 2011Zalayeta, MXdaily high max (Tie)25.0 C (77.0 F)tie42 years4 of 100 (Routine)
31 October 2011Zalayeta, MXdaily low min (Tie)-5.0 C (23.0 F)tie24 years2 of 100 (Routine)
26 October 2011Zalayeta, MXdaily low min (Tie)-6.1 C (21.0 F)tie12 years1 of 100 (Routine)

Climate Trend

37 complete years, 1967 to 2011
Annual mean temperature at Zalayeta as warming stripes, 1967 to 2011 One stripe for each of 37 complete years at Zalayeta, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 12.7 C (54.9 F); red stripes are warmer. The coolest year was 1977, at 11.7 C (53.1 F), and the warmest was 1998, at 13.4 C (56.0 F). The strongest colour marks a difference of 1.1 C (2.0 F). 1967: 13.3 C, +0.6 C from the station mean1968: 13.0 C, +0.2 C from the station mean1971: 12.3 C, -0.4 C from the station mean1972: 13.0 C, +0.3 C from the station mean1973: 13.2 C, +0.5 C from the station mean1974: 11.9 C, -0.9 C from the station mean1975: 12.0 C, -0.8 C from the station mean1976: 11.8 C, -0.9 C from the station mean1977: 11.7 C, -1.0 C from the station mean1978: 12.4 C, -0.3 C from the station mean1979: 12.5 C, -0.2 C from the station mean1980: 12.7 C, 0.0 C from the station mean1981: 12.9 C, +0.1 C from the station mean1982: 13.3 C, +0.6 C from the station mean1983: 12.8 C, 0.0 C from the station mean1984: 12.4 C, -0.3 C from the station mean1985: 12.2 C, -0.6 C from the station mean1986: 13.0 C, +0.2 C from the station mean1987: 12.9 C, +0.2 C from the station mean1988: 12.8 C, +0.1 C from the station mean1990: 12.7 C, -0.1 C from the station mean1991: 12.9 C, +0.2 C from the station mean1992: 13.0 C, +0.3 C from the station mean1993: 12.8 C, 0.0 C from the station mean1994: 13.1 C, +0.4 C from the station mean1995: 13.3 C, +0.6 C from the station mean1996: 12.7 C, 0.0 C from the station mean1997: 13.1 C, +0.3 C from the station mean1998: 13.4 C, +0.6 C from the station mean2000: 12.2 C, -0.5 C from the station mean2001: 12.3 C, -0.4 C from the station mean2002: 12.6 C, -0.1 C from the station mean2003: 13.0 C, +0.3 C from the station mean2004: 12.8 C, +0.1 C from the station mean2005: 13.0 C, +0.2 C from the station mean2010: 13.2 C, +0.5 C from the station mean2011: 13.3 C, +0.6 C from the station mean1967197019751980198519901995200020052010
One stripe for each of 37 complete years at Zalayeta, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 12.7 C (54.9 F); red stripes are warmer. The coolest year was 1977, at 11.7 C (53.1 F), and the warmest was 1998, at 13.4 C (56.0 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Zalayeta as warming stripes, 1967 to 2011
YearAnnual mean temperatureDifference from the station mean
196713.3 C+0.58 C
196813.0 C+0.23 C
197112.3 C-0.41 C
197213.0 C+0.28 C
197313.2 C+0.47 C
197411.9 C-0.86 C
197512.0 C-0.79 C
197611.8 C-0.92 C
197711.7 C-1.01 C
197812.4 C-0.31 C
197912.5 C-0.25 C
198012.7 C-0.05 C
198112.9 C+0.12 C
198213.3 C+0.55 C
198312.8 C+0.01 C
198412.4 C-0.35 C
198512.2 C-0.57 C
198613.0 C+0.24 C
198712.9 C+0.17 C
198812.8 C+0.07 C
199012.7 C-0.09 C
199112.9 C+0.19 C
199213.0 C+0.26 C
199312.8 C+0.02 C
199413.1 C+0.36 C
199513.3 C+0.57 C
199612.7 C-0.05 C
199713.1 C+0.32 C
199813.4 C+0.61 C
200012.2 C-0.50 C
200112.3 C-0.41 C
200212.6 C-0.15 C
200313.0 C+0.28 C
200412.8 C+0.05 C
200513.0 C+0.23 C
201013.2 C+0.46 C
201113.3 C+0.59 C

The fitted trend in annual mean temperature here over 1967 to 2011 is 0.12 C (0.00 to 0.24) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.21 F (-0.01 to 0.43) 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 Zalayeta
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.12 C (0.00 to 0.24) per decade0.21 F (-0.01 to 0.43) per decade1967 to 201137Not clearly different from zero
Mean daily maximum0.3 C (0.1 to 0.5) per decade0.6 F (0.2 to 0.9) per decade1967 to 201137Rise
Mean daily minimum-0.1 C (-0.3 to 0.1) per decade-0.2 F (-0.5 to 0.2) per decade1967 to 201137Not 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

1965 to 2011
Yearly extremes at Zalayeta: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.0 C (95.0 F)198330.6 C (87.1 F)47
Coldest night (TNn)-17.8 C (0.0 F)1973-12.2 C (10.0 F)47
Wettest day (Rx1day)127.8 mm (5.0 in)199938.9 mm (1.5 in)47
Wettest five days (Rx5day)246.0 mm (9.7 in)199965.1 mm (2.6 in)47
Longest dry spell (CDD)124 days200961 days47

Hottest day (TXx)

Hottest day (TXx) at Zalayeta by year The hottest day of the year at Zalayeta, 1965 to 2011. The record is 35.0 C (95.0 F) in 1983, marked on the chart; the median year is 30.6 C (87.1 F). 283032343619701980199020002010Record: 35.0 C (95.0 F) in 1983
The hottest day of the year at Zalayeta, 1965 to 2011. The record is 35.0 C (95.0 F) in 1983, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Zalayeta by year
YearHottest day (TXx)
196530.0 C (86.0 F)
196630.0 C (86.0 F)
196731.7 C (89.1 F)
196828.9 C (84.0 F)
196930.6 C (87.1 F)
197032.8 C (91.0 F)
197132.8 C (91.0 F)
197230.6 C (87.1 F)
197331.7 C (89.1 F)
197428.9 C (84.0 F)
197530.6 C (87.1 F)
197630.0 C (86.0 F)
197728.9 C (84.0 F)
197830.6 C (87.1 F)
197930.6 C (87.1 F)
198030.6 C (87.1 F)
198130.0 C (86.0 F)
198231.7 C (89.1 F)
198335.0 C (95.0 F)
198430.6 C (87.1 F)
198530.0 C (86.0 F)
198632.8 C (91.0 F)
198728.9 C (84.0 F)
198831.7 C (89.1 F)
198930.6 C (87.1 F)
199031.7 C (89.1 F)
199131.7 C (89.1 F)
199230.6 C (87.1 F)
199330.6 C (87.1 F)
199431.7 C (89.1 F)
199531.7 C (89.1 F)
199630.0 C (86.0 F)
199730.0 C (86.0 F)
199835.0 C (95.0 F)
199931.7 C (89.1 F)
200028.9 C (84.0 F)
200130.0 C (86.0 F)
200230.0 C (86.0 F)
200331.7 C (89.1 F)
200428.9 C (84.0 F)
200530.0 C (86.0 F)
200630.6 C (87.1 F)
200730.0 C (86.0 F)
200832.8 C (91.0 F)
200932.8 C (91.0 F)
201031.7 C (89.1 F)
201133.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at Zalayeta by year The coldest night of the year at Zalayeta, 1965 to 2011. The record is -17.8 C (0.0 F) in 1973, marked on the chart; the median year is -12.2 C (10.0 F). -20-15-10-5019701980199020002010Record: -17.8 C (0.0 F) in 1973
The coldest night of the year at Zalayeta, 1965 to 2011. The record is -17.8 C (0.0 F) in 1973, marked on the chart; the median year is -12.2 C (10.0 F).
Coldest night (TNn) at Zalayeta by year
YearColdest night (TNn)
1965-11.1 C (12.0 F)
1966-14.4 C (6.1 F)
1967-17.2 C (1.0 F)
1968-10.0 C (14.0 F)
1969-10.0 C (14.0 F)
1970-12.2 C (10.0 F)
1971-12.2 C (10.0 F)
1972-13.3 C (8.1 F)
1973-17.8 C (0.0 F)
1974-14.4 C (6.1 F)
1975-16.1 C (3.0 F)
1976-17.8 C (0.0 F)
1977-10.0 C (14.0 F)
1978-10.0 C (14.0 F)
1979-9.4 C (15.1 F)
1980-13.3 C (8.1 F)
1981-11.1 C (12.0 F)
1982-12.2 C (10.0 F)
1983-9.4 C (15.1 F)
1984-12.2 C (10.0 F)
1985-9.4 C (15.1 F)
1986-15.0 C (5.0 F)
1987-16.1 C (3.0 F)
1988-10.0 C (14.0 F)
1989-16.1 C (3.0 F)
1990-15.0 C (5.0 F)
1991-12.2 C (10.0 F)
1992-10.0 C (14.0 F)
1993-9.4 C (15.1 F)
1994-12.2 C (10.0 F)
1995-12.2 C (10.0 F)
1996-12.2 C (10.0 F)
1997-14.4 C (6.1 F)
1998-13.3 C (8.1 F)
1999-13.3 C (8.1 F)
2000-10.0 C (14.0 F)
2001-10.0 C (14.0 F)
2002-11.1 C (12.0 F)
2003-9.4 C (15.1 F)
2004-12.2 C (10.0 F)
2005-12.2 C (10.0 F)
2006-9.4 C (15.1 F)
2007-1.1 C (30.0 F)
2008-9.4 C (15.1 F)
2009-10.0 C (14.0 F)
2010-13.3 C (8.1 F)
2011-15.0 C (5.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Zalayeta by year The wettest day of the year at Zalayeta, 1965 to 2011. The record is 127.8 mm (5.0 in) in 1999, marked on the chart; the median year is 38.9 mm (1.5 in). 05010015019701980199020002010Record: 127.8 mm (5.0 in) in 1999
The wettest day of the year at Zalayeta, 1965 to 2011. The record is 127.8 mm (5.0 in) in 1999, marked on the chart; the median year is 38.9 mm (1.5 in).
Wettest day (Rx1day) at Zalayeta by year
YearWettest day (Rx1day)
196521.3 mm (0.8 in)
196672.6 mm (2.9 in)
196739.4 mm (1.6 in)
196825.4 mm (1.0 in)
196925.9 mm (1.0 in)
197035.1 mm (1.4 in)
197128.4 mm (1.1 in)
197236.3 mm (1.4 in)
197346.5 mm (1.8 in)
197455.4 mm (2.2 in)
197541.9 mm (1.6 in)
197672.9 mm (2.9 in)
197739.4 mm (1.6 in)
197856.9 mm (2.2 in)
197950.8 mm (2.0 in)
198038.9 mm (1.5 in)
198135.8 mm (1.4 in)
198216.8 mm (0.7 in)
198324.9 mm (1.0 in)
198438.9 mm (1.5 in)
198525.9 mm (1.0 in)
198617.3 mm (0.7 in)
198740.4 mm (1.6 in)
198863.0 mm (2.5 in)
198942.9 mm (1.7 in)
199038.4 mm (1.5 in)
199144.5 mm (1.8 in)
199231.0 mm (1.2 in)
199339.9 mm (1.6 in)
199429.5 mm (1.2 in)
199552.8 mm (2.1 in)
199625.4 mm (1.0 in)
199735.8 mm (1.4 in)
199824.4 mm (1.0 in)
1999127.8 mm (5.0 in)
200045.0 mm (1.8 in)
200150.8 mm (2.0 in)
200218.8 mm (0.7 in)
200321.8 mm (0.9 in)
200426.9 mm (1.1 in)
200545.5 mm (1.8 in)
200625.9 mm (1.0 in)
200739.9 mm (1.6 in)
200831.0 mm (1.2 in)
200918.8 mm (0.7 in)
201072.4 mm (2.9 in)
201149.8 mm (2.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Zalayeta by year The wettest five days of the year at Zalayeta, 1965 to 2011. The record is 246.0 mm (9.7 in) in 1999, marked on the chart; the median year is 65.1 mm (2.6 in). 010020030019701980199020002010Record: 246.0 mm (9.7 in) in 1999
The wettest five days of the year at Zalayeta, 1965 to 2011. The record is 246.0 mm (9.7 in) in 1999, marked on the chart; the median year is 65.1 mm (2.6 in).
Wettest five days (Rx5day) at Zalayeta by year
YearWettest five days (Rx5day)
196530.2 mm (1.2 in)
196686.9 mm (3.4 in)
1967101.5 mm (4.0 in)
196879.0 mm (3.1 in)
196955.1 mm (2.2 in)
197058.7 mm (2.3 in)
197151.3 mm (2.0 in)
197250.5 mm (2.0 in)
197375.0 mm (3.0 in)
197491.5 mm (3.6 in)
197567.8 mm (2.7 in)
197679.0 mm (3.1 in)
197744.5 mm (1.8 in)
1978132.0 mm (5.2 in)
197977.2 mm (3.0 in)
198097.4 mm (3.8 in)
198199.6 mm (3.9 in)
198230.7 mm (1.2 in)
198363.8 mm (2.5 in)
1984105.9 mm (4.2 in)
198541.7 mm (1.6 in)
198626.3 mm (1.0 in)
198771.2 mm (2.8 in)
1988100.9 mm (4.0 in)
198991.4 mm (3.6 in)
199038.4 mm (1.5 in)
1991105.4 mm (4.1 in)
199279.8 mm (3.1 in)
199384.1 mm (3.3 in)
199449.1 mm (1.9 in)
199591.5 mm (3.6 in)
199635.1 mm (1.4 in)
199763.5 mm (2.5 in)
199861.7 mm (2.4 in)
1999246.0 mm (9.7 in)
200060.8 mm (2.4 in)
200179.5 mm (3.1 in)
200241.9 mm (1.6 in)
200344.5 mm (1.8 in)
200448.7 mm (1.9 in)
200554.9 mm (2.2 in)
200633.1 mm (1.3 in)
200765.1 mm (2.6 in)
200845.0 mm (1.8 in)
200925.7 mm (1.0 in)
2010103.5 mm (4.1 in)
2011117.3 mm (4.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Zalayeta by year The longest dry spell of the year at Zalayeta, 1965 to 2011. The record is 124 days in 2009, marked on the chart; the median year is 61 days. 25507510012519701980199020002010Record: 124 days in 2009
The longest dry spell of the year at Zalayeta, 1965 to 2011. The record is 124 days in 2009, marked on the chart; the median year is 61 days.
Longest dry spell (CDD) at Zalayeta by year
YearLongest dry spell (CDD)
196543 days
196673 days
196768 days
196845 days
196939 days
197090 days
197182 days
197271 days
197360 days
197459 days
197581 days
197655 days
197737 days
197844 days
197940 days
198071 days
198137 days
198260 days
198372 days
198441 days
198582 days
198652 days
198761 days
198861 days
198954 days
199079 days
199168 days
199250 days
199348 days
1994107 days
199529 days
199653 days
199774 days
199892 days
199959 days
200068 days
200160 days
200258 days
200384 days
200480 days
200584 days
200681 days
200755 days
200889 days
2009124 days
201063 days
201184 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

37 years with a frost

Across 37 years with a frost, the median last spring frost at Zalayeta falls on 27 May and the median first autumn frost on 9 September, which leaves a median of 108 days between them.

Fitted over all years, the growing season changes by +20.0 days per decade at this station.

Frost dates and growing season at Zalayeta
MeasureMedian, all yearsEarliest periodRecent period (1976 to 2011)Recent against earliestFitted trend
Last spring frost27 Mayn/a27 Mayn/a-2.9 days per decade
First autumn frost9 Septembern/a30 Septembern/a+17.1 days per decade
Growing days108 daysn/a115 daysn/a+20.0 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

42 years, 1967 to 2011

A day with at least 37.1 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 77.3 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Zalayeta: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years37.1 mm (1.5 in)
5 years49.4 mm (1.9 in)
10 years56.9 mm (2.2 in)
25 years65.7 mm (2.6 in)
50 years71.7 mm (2.8 in)Longer than the 42 years of record
100 years77.3 mm (3.0 in)Longer than the 42 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, 42 years of values from 1967 to 2011.

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: 72.9 mm (2.9 in) in 1976; 72.4 mm (2.9 in) in 2010; 63.0 mm (2.5 in) in 1988.

Download the Data

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