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Palo Verde Weather Records (MXN00026066)

Record envelope, standing records and threshold days for Palo Verde (MXN00026066), Mexico, with 50 years of record.

Key Facts for Palo Verde

  • Palo Verde (MXN00026066) is a weather station in Mexico at 28.78 latitude and -111.35 longitude, 79 m (259 ft) above sea level.
  • The station reports from 1963 to 2012, 50 years of record.
  • 1,464 records set at Palo Verde still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Palo Verde tied a daily record high maximum temperature of 30.0 C (86.0 F) on 20 January 2012.

About the Station

  • Location: Mexico, 28.78 latitude, -111.35 longitude.
  • Elevation: 79 m (259 ft).
  • Period of record: 1963 to 2012, 50 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 Palo Verde, with 2026 drawn through them The band shows the record high and record low for each calendar day at Palo Verde. 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 Palo Verde. 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 Palo Verde, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.7 C (98.1 F)-7.2 C (19.0 F)n/an/a
Feb38.9 C (102.0 F)-3.3 C (26.1 F)n/an/a
Mar41.7 C (107.1 F)-2.2 C (28.0 F)n/an/a
Apr43.9 C (111.0 F)0.6 C (33.1 F)n/an/a
May45.6 C (114.1 F)1.7 C (35.1 F)n/an/a
Jun47.8 C (118.0 F)6.7 C (44.1 F)n/an/a
Jul49.4 C (120.9 F)10.0 C (50.0 F)n/an/a
Aug45.6 C (114.1 F)11.7 C (53.1 F)n/an/a
Sep47.8 C (118.0 F)11.7 C (53.1 F)n/an/a
Oct45.6 C (114.1 F)2.2 C (36.0 F)n/an/a
Nov40.6 C (105.1 F)-1.1 C (30.0 F)n/an/a
Dec37.8 C (100.0 F)-3.3 C (26.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Palo Verde by the year they were set 1,464 records at Palo Verde still stand. 1967 holds the most, with 121. 0501001501963: 601964: 791965: 571966: 291967: 1211968: 711969: 381970: 181971: 441972: 261973: 311974: 291975: 571976: 351977: 371978: 281979: 421980: 281981: 421982: 261983: 211984: 281985: 151986: 371987: 241988: 211989: 121990: 271991: 201992: 201993: 201994: 61997: 552000: 222001: 22002: 422003: 132004: 132005: 72006: 372007: 62008: 432009: 272010: 152011: 302012: 31963196819731978198319881993200220072012
1,464 records at Palo Verde still stand. 1967 holds the most, with 121.
Standing records at Palo Verde by the year they were set
Year setStanding records
196360
196479
196557
196629
1967121
196871
196938
197018
197144
197226
197331
197429
197557
197635
197737
197828
197942
198028
198142
198226
198321
198428
198515
198637
198724
198821
198912
199027
199120
199220
199320
19946
199755
200022
20012
200242
200313
200413
20057
200637
20076
200843
200927
201015
201130
20123

All-Time Record Progression

2 new records
When Palo Verde set new all-time records 2 all-time records were set at Palo Verde between 23 September 1993 and 2 August 1997. Each dot is a new record. Record daily precipitationRecord high minimum temperature23 September 1993: Record daily precipitation 95.8 mm (3.8 in)2 August 1997: Record high minimum temperature 30.0 C (86.0 F)1995
2 all-time records were set at Palo Verde between 23 September 1993 and 2 August 1997. Each dot is a new record.
When Palo Verde set new all-time records
DateKindDetail
1993-09-23Record daily precipitationRecord daily precipitation 95.8 mm (3.8 in)
1997-08-02Record high minimum temperatureRecord high minimum temperature 30.0 C (86.0 F)

Wettest Day of Each Month

Sep: 95.8 mm (3.8 in)
Record daily precipitation for each month at Palo Verde The wettest day on record for each calendar month at Palo Verde. The most was 95.8 mm (3.8 in) on 23 September 1993. 0255075100 Jan: 30.0 mm (1.2 in), 4 January 1984 Jan Feb: 30.0 mm (1.2 in), 28 February 1978 Feb Mar: 16.0 mm (0.6 in), 2 March 1983 Mar Apr: 30.0 mm (1.2 in), 20 April 1987 Apr May: 46.0 mm (1.8 in), 30 May 1972 May Jun: 9.9 mm (0.39 in), 25 June 2000 Jun Jul: 46.0 mm (1.8 in), 25 July 1975 Jul Aug: 85.9 mm (3.4 in), 10 August 1970 Aug Sep: 95.8 mm (3.8 in), 23 September 1993 Sep Oct: 21.8 mm (0.9 in), 3 October 1968 Oct Nov: 26.9 mm (1.1 in), 23 November 2011 Nov Dec: 46.0 mm (1.8 in), 1 December 1997 Dec
The wettest day on record for each calendar month at Palo Verde. The most was 95.8 mm (3.8 in) on 23 September 1993.
Record daily precipitation for each month at Palo Verde
MonthRecord daily precipitation (mm)Date
Jan30.0 mm (1.2 in)4 January 1984
Feb30.0 mm (1.2 in)28 February 1978
Mar16.0 mm (0.6 in)2 March 1983
Apr30.0 mm (1.2 in)20 April 1987
May46.0 mm (1.8 in)30 May 1972
Jun9.9 mm (0.39 in)25 June 2000
Jul46.0 mm (1.8 in)25 July 1975
Aug85.9 mm (3.4 in)10 August 1970
Sep95.8 mm (3.8 in)23 September 1993
Oct21.8 mm (0.9 in)3 October 1968
Nov26.9 mm (1.1 in)23 November 2011
Dec46.0 mm (1.8 in)1 December 1997

Period of Record Coverage

1963 to 2012
Days with data per year at Palo Verde 47 years of record at Palo Verde, 1963 to 2012. 19 years have data for under 90 percent of days and are left out of rankings: 1963, 1965, 1966, 1989, 1994, 1997, 1998, 2000 and others. 1963: 318 of 365 days1964: 336 of 366 days1965: 201 of 365 days1966: 213 of 365 days1967: 359 of 365 days1968: 364 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 364 of 365 days1974: 365 of 365 days1975: 362 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 364 of 365 days1980: 365 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 363 of 366 days1985: 365 of 365 days1986: 364 of 365 days1987: 336 of 365 days1988: 365 of 366 days1989: 305 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 361 of 366 days1993: 361 of 365 days1994: 130 of 365 days1997: 282 of 365 days1998: 1 of 365 days2000: 212 of 366 days2001: 28 of 365 days2002: 250 of 365 days2003: 251 of 365 days2004: 142 of 366 days2005: 151 of 365 days2006: 115 of 365 days2007: 156 of 365 days2008: 326 of 366 days2009: 318 of 365 days2010: 305 of 365 days2011: 358 of 365 days2012: 30 of 366 days19701980199020002010
47 years of record at Palo Verde, 1963 to 2012. 19 years have data for under 90 percent of days and are left out of rankings: 1963, 1965, 1966, 1989, 1994, 1997, 1998, 2000 and others.
Days with data per year at Palo Verde
YearDays with dataShare of yearComplete
196331887%No
196433692%Yes
196520155%No
196621358%No
196735998%Yes
196836499%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973364100%Yes
1974365100%Yes
197536299%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979364100%Yes
1980365100%Yes
1981364100%Yes
1982365100%Yes
1983365100%Yes
198436399%Yes
1985365100%Yes
1986364100%Yes
198733692%Yes
1988365100%Yes
198930584%No
1990364100%Yes
1991365100%Yes
199236199%Yes
199336199%Yes
199413036%No
199728277%No
199810%No
200021258%No
2001288%No
200225068%No
200325169%No
200414239%No
200515141%No
200611532%No
200715643%No
200832689%No
200931887%No
201030584%No
201135898%Yes
2012308%No

Latest Records

20
Latest records at Palo Verde
DateStationRecordValueBeat old record byOld record stoodSignificance
20 January 2012Palo Verde, MXdaily high max (Tie)30.0 C (86.0 F)tie46 years4 of 100 (Routine)
4 January 2012Palo Verde, MXdaily high max (Tie)31.7 C (89.1 F)tie5 years1 of 100 (Routine)
3 January 2012Palo Verde, MXdaily high max30.0 C (86.0 F)1.1 C (2.0 F)30 years16 of 100 (Routine)
2 January 2012Palo Verde, MXdaily high max32.8 C (91.0 F)2.8 C (5.0 F)48 years25 of 100 (Routine)
1 January 2012Palo Verde, MXdaily high max35.0 C (95.0 F)3.3 C (5.9 F)45 years25 of 100 (Routine)
31 December 2011Palo Verde, MXdaily high max30.0 C (86.0 F)1.1 C (2.0 F)25 years13 of 100 (Routine)
29 December 2011Palo Verde, MXdaily low min (Tie)-1.1 C (30.0 F)tie22 years2 of 100 (Routine)
8 December 2011Palo Verde, MXdaily low min-1.1 C (30.0 F)2.8 C (5.0 F)46 years26 of 100 (Routine)
5 December 2011Palo Verde, MXdaily low min-1.1 C (30.0 F)1.1 C (2.0 F)37 years18 of 100 (Routine)
23 November 2011Palo Verde, MXmonthly rain26.9 mm (1.1 in)0.5 mm (0.02 in)20 years20 of 100 (Routine)
10 November 2011Palo Verde, MXdaily low min3.9 C (39.0 F)1.1 C (2.0 F)40 years19 of 100 (Routine)
9 November 2011Palo Verde, MXdaily low min1.7 C (35.1 F)2.2 C (4.0 F)10 years13 of 100 (Routine)
25 October 2011Palo Verde, MXdaily high min (Tie)17.8 C (64.0 F)tie22 years2 of 100 (Routine)
16 October 2011Palo Verde, MXdaily high max (Tie)40.6 C (105.1 F)tie2 years1 of 100 (Routine)
23 September 2011Palo Verde, MXdaily high max45.0 C (113.0 F)3.3 C (5.9 F)48 years28 of 100 (Routine)
22 September 2011Palo Verde, MXdaily high max45.0 C (113.0 F)0.6 C (1.1 F)13 years9 of 100 (Routine)
21 September 2011Palo Verde, MXdaily high max43.9 C (111.0 F)1.1 C (2.0 F)46 years21 of 100 (Routine)
20 September 2011Palo Verde, MXdaily high max (Tie)41.7 C (107.1 F)tie46 years4 of 100 (Routine)
19 September 2011Palo Verde, MXdaily low min16.7 C (62.1 F)1.1 C (2.0 F)36 years18 of 100 (Routine)
19 September 2011Palo Verde, MXdaily high max42.8 C (109.0 F)1.1 C (2.0 F)28 years15 of 100 (Routine)

Climate Trend

27 complete years, 1967 to 2011
Annual mean temperature at Palo Verde as warming stripes, 1967 to 2011 One stripe for each of 27 complete years at Palo Verde, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 22.0 C (71.6 F); red stripes are warmer. The coolest year was 1975, at 19.8 C (67.7 F), and the warmest was 2009, at 23.6 C (74.5 F). The strongest colour marks a difference of 2.2 C (4.0 F). 1967: 22.6 C, +0.6 C from the station mean1968: 23.5 C, +1.5 C from the station mean1969: 22.9 C, +0.9 C from the station mean1970: 21.5 C, -0.5 C from the station mean1971: 20.6 C, -1.4 C from the station mean1972: 21.9 C, -0.1 C from the station mean1973: 21.5 C, -0.5 C from the station mean1974: 20.6 C, -1.4 C from the station mean1975: 19.8 C, -2.2 C from the station mean1976: 20.0 C, -2.0 C from the station mean1977: 21.6 C, -0.4 C from the station mean1978: 21.7 C, -0.3 C from the station mean1979: 21.2 C, -0.8 C from the station mean1980: 22.5 C, +0.5 C from the station mean1981: 23.0 C, +1.0 C from the station mean1982: 22.5 C, +0.5 C from the station mean1983: 22.6 C, +0.6 C from the station mean1984: 22.1 C, +0.1 C from the station mean1985: 22.1 C, +0.1 C from the station mean1986: 22.9 C, +0.9 C from the station mean1988: 22.2 C, +0.2 C from the station mean1990: 22.1 C, +0.1 C from the station mean1991: 21.9 C, -0.1 C from the station mean1992: 22.1 C, +0.1 C from the station mean1993: 22.7 C, +0.7 C from the station mean2009: 23.6 C, +1.6 C from the station mean2011: 22.5 C, +0.5 C from the station mean1967197019751980198519901995200020052010
One stripe for each of 27 complete years at Palo Verde, 1967 to 2011. Blue stripes are years cooler than the station's own mean of 22.0 C (71.6 F); red stripes are warmer. The coolest year was 1975, at 19.8 C (67.7 F), and the warmest was 2009, at 23.6 C (74.5 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Palo Verde as warming stripes, 1967 to 2011
YearAnnual mean temperatureDifference from the station mean
196722.6 C+0.64 C
196823.5 C+1.49 C
196922.9 C+0.87 C
197021.5 C-0.47 C
197120.6 C-1.42 C
197221.9 C-0.14 C
197321.5 C-0.55 C
197420.6 C-1.36 C
197519.8 C-2.16 C
197620.0 C-1.99 C
197721.6 C-0.45 C
197821.7 C-0.33 C
197921.2 C-0.83 C
198022.5 C+0.48 C
198123.0 C+1.00 C
198222.5 C+0.48 C
198322.6 C+0.57 C
198422.1 C+0.08 C
198522.1 C+0.07 C
198622.9 C+0.89 C
198822.2 C+0.23 C
199022.1 C+0.11 C
199121.9 C-0.14 C
199222.1 C+0.11 C
199322.7 C+0.70 C
200923.6 C+1.59 C
201122.5 C+0.46 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

1963 to 2012
Yearly extremes at Palo Verde: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)49.4 C (120.9 F)196743.9 C (111.0 F)47
Coldest night (TNn)-7.2 C (19.0 F)1971-0.3 C (31.5 F)46
Wettest day (Rx1day)95.8 mm (3.8 in)199335.6 mm (1.4 in)47
Wettest five days (Rx5day)95.8 mm (3.8 in)199347.9 mm (1.9 in)47
Longest dry spell (CDD)193 days1967103 days47

Hottest day (TXx)

Hottest day (TXx) at Palo Verde by year The hottest day of the year at Palo Verde, 1963 to 2012. The record is 49.4 C (120.9 F) in 1967, marked on the chart; the median year is 43.9 C (111.0 F). 2030405019701980199020002010Record: 49.4 C (120.9 F) in 1967
The hottest day of the year at Palo Verde, 1963 to 2012. The record is 49.4 C (120.9 F) in 1967, marked on the chart; the median year is 43.9 C (111.0 F).
Hottest day (TXx) at Palo Verde by year
YearHottest day (TXx)
196347.8 C (118.0 F)
196445.6 C (114.1 F)
196543.9 C (111.0 F)
196643.3 C (109.9 F)
196749.4 C (120.9 F)
196847.8 C (118.0 F)
196946.7 C (116.1 F)
197042.8 C (109.0 F)
197140.6 C (105.1 F)
197242.8 C (109.0 F)
197345.6 C (114.1 F)
197442.8 C (109.0 F)
197540.0 C (104.0 F)
197640.6 C (105.1 F)
197745.6 C (114.1 F)
197841.7 C (107.1 F)
197943.9 C (111.0 F)
198042.8 C (109.0 F)
198145.0 C (113.0 F)
198243.9 C (111.0 F)
198343.9 C (111.0 F)
198440.6 C (105.1 F)
198543.9 C (111.0 F)
198643.9 C (111.0 F)
198742.2 C (108.0 F)
198843.3 C (109.9 F)
198941.7 C (107.1 F)
199041.7 C (107.1 F)
199140.6 C (105.1 F)
199242.8 C (109.0 F)
199345.0 C (113.0 F)
199442.8 C (109.0 F)
199745.6 C (114.1 F)
199827.8 C (82.0 F)
200038.9 C (102.0 F)
200133.3 C (91.9 F)
200245.6 C (114.1 F)
200344.4 C (111.9 F)
200443.9 C (111.0 F)
200542.8 C (109.0 F)
200645.0 C (113.0 F)
200743.9 C (111.0 F)
200845.0 C (113.0 F)
200946.1 C (115.0 F)
201045.6 C (114.1 F)
201145.6 C (114.1 F)
201235.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at Palo Verde by year The coldest night of the year at Palo Verde, 1963 to 2012. The record is -7.2 C (19.0 F) in 1971, marked on the chart; the median year is -0.3 C (31.5 F). -10-505101519701980199020002010Record: -7.2 C (19.0 F) in 1971
The coldest night of the year at Palo Verde, 1963 to 2012. The record is -7.2 C (19.0 F) in 1971, marked on the chart; the median year is -0.3 C (31.5 F).
Coldest night (TNn) at Palo Verde by year
YearColdest night (TNn)
1963-4.4 C (24.1 F)
1964-4.4 C (24.1 F)
1965-1.1 C (30.0 F)
19660.6 C (33.1 F)
19670.0 C (32.0 F)
19680.0 C (32.0 F)
1969-1.1 C (30.0 F)
1970-2.2 C (28.0 F)
1971-7.2 C (19.0 F)
1972-3.3 C (26.1 F)
1973-3.3 C (26.1 F)
19740.0 C (32.0 F)
19750.0 C (32.0 F)
19760.0 C (32.0 F)
1977-1.1 C (30.0 F)
1978-2.2 C (28.0 F)
1979-1.1 C (30.0 F)
19800.6 C (33.1 F)
19810.0 C (32.0 F)
19820.0 C (32.0 F)
19830.6 C (33.1 F)
19840.6 C (33.1 F)
1985-3.3 C (26.1 F)
19860.6 C (33.1 F)
1987-2.2 C (28.0 F)
1988-1.1 C (30.0 F)
1989-0.6 C (30.9 F)
1990-0.6 C (30.9 F)
19911.7 C (35.1 F)
19920.0 C (32.0 F)
19931.1 C (34.0 F)
19940.0 C (32.0 F)
19970.6 C (33.1 F)
1998n/a
2000-0.6 C (30.9 F)
200111.1 C (52.0 F)
20020.0 C (32.0 F)
20030.6 C (33.1 F)
2004-2.2 C (28.0 F)
2005-2.2 C (28.0 F)
2006-2.2 C (28.0 F)
20078.9 C (48.0 F)
2008-3.3 C (26.1 F)
2009-2.2 C (28.0 F)
20100.0 C (32.0 F)
2011-2.8 C (27.0 F)
20120.6 C (33.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Palo Verde by year The wettest day of the year at Palo Verde, 1963 to 2012. The record is 95.8 mm (3.8 in) in 1993, marked on the chart; the median year is 35.6 mm (1.4 in). 025507510019701980199020002010Record: 95.8 mm (3.8 in) in 1993
The wettest day of the year at Palo Verde, 1963 to 2012. The record is 95.8 mm (3.8 in) in 1993, marked on the chart; the median year is 35.6 mm (1.4 in).
Wettest day (Rx1day) at Palo Verde by year
YearWettest day (Rx1day)
196338.9 mm (1.5 in)
196415.0 mm (0.6 in)
196523.9 mm (0.9 in)
196675.9 mm (3.0 in)
196737.8 mm (1.5 in)
196830.0 mm (1.2 in)
196957.4 mm (2.3 in)
197085.9 mm (3.4 in)
197166.8 mm (2.6 in)
197246.0 mm (1.8 in)
197319.8 mm (0.8 in)
197442.9 mm (1.7 in)
197552.6 mm (2.1 in)
197638.4 mm (1.5 in)
197749.5 mm (1.9 in)
197837.3 mm (1.5 in)
197935.6 mm (1.4 in)
198022.4 mm (0.9 in)
198129.0 mm (1.1 in)
198231.5 mm (1.2 in)
198353.6 mm (2.1 in)
198430.0 mm (1.2 in)
198537.3 mm (1.5 in)
198639.9 mm (1.6 in)
198738.4 mm (1.5 in)
198838.9 mm (1.5 in)
198929.0 mm (1.1 in)
199051.3 mm (2.0 in)
199158.9 mm (2.3 in)
199267.8 mm (2.7 in)
199395.8 mm (3.8 in)
19942.8 mm (0.11 in)
199753.8 mm (2.1 in)
19980.0 mm (0.00 in)
20009.9 mm (0.39 in)
20010.0 mm (0.00 in)
200227.9 mm (1.1 in)
200362.0 mm (2.4 in)
20045.8 mm (0.23 in)
20058.9 mm (0.35 in)
200625.4 mm (1.0 in)
20077.9 mm (0.31 in)
20088.9 mm (0.35 in)
20096.9 mm (0.27 in)
20109.9 mm (0.39 in)
201126.9 mm (1.1 in)
20120.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Palo Verde by year The wettest five days of the year at Palo Verde, 1963 to 2012. The record is 95.8 mm (3.8 in) in 1993, marked on the chart; the median year is 47.9 mm (1.9 in). 025507510019701980199020002010Record: 95.8 mm (3.8 in) in 1993
The wettest five days of the year at Palo Verde, 1963 to 2012. The record is 95.8 mm (3.8 in) in 1993, marked on the chart; the median year is 47.9 mm (1.9 in).
Wettest five days (Rx5day) at Palo Verde by year
YearWettest five days (Rx5day)
196338.9 mm (1.5 in)
196425.5 mm (1.0 in)
196525.2 mm (1.0 in)
196680.2 mm (3.2 in)
196755.6 mm (2.2 in)
196850.0 mm (2.0 in)
196982.5 mm (3.2 in)
197087.5 mm (3.4 in)
197183.6 mm (3.3 in)
197264.3 mm (2.5 in)
197330.0 mm (1.2 in)
197454.6 mm (2.1 in)
197590.5 mm (3.6 in)
197645.3 mm (1.8 in)
197749.5 mm (1.9 in)
197869.3 mm (2.7 in)
197957.9 mm (2.3 in)
198047.9 mm (1.9 in)
198136.9 mm (1.5 in)
198256.1 mm (2.2 in)
198369.1 mm (2.7 in)
198440.1 mm (1.6 in)
198549.5 mm (1.9 in)
198649.8 mm (2.0 in)
198738.4 mm (1.5 in)
198842.7 mm (1.7 in)
198933.8 mm (1.3 in)
199068.4 mm (2.7 in)
199175.2 mm (3.0 in)
199292.7 mm (3.6 in)
199395.8 mm (3.8 in)
19942.8 mm (0.11 in)
199764.8 mm (2.6 in)
19980.0 mm (0.00 in)
20009.9 mm (0.39 in)
20010.0 mm (0.00 in)
200251.8 mm (2.0 in)
200370.9 mm (2.8 in)
20048.6 mm (0.34 in)
20058.9 mm (0.35 in)
200625.4 mm (1.0 in)
200715.8 mm (0.6 in)
200817.5 mm (0.7 in)
20096.9 mm (0.27 in)
20109.9 mm (0.39 in)
201126.9 mm (1.1 in)
20120.0 mm (0.00 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Palo Verde by year The longest dry spell of the year at Palo Verde, 1963 to 2012. The record is 193 days in 1967, marked on the chart; the median year is 103 days. 05010015020019701980199020002010Record: 193 days in 1967
The longest dry spell of the year at Palo Verde, 1963 to 2012. The record is 193 days in 1967, marked on the chart; the median year is 103 days.
Longest dry spell (CDD) at Palo Verde by year
YearLongest dry spell (CDD)
1963109 days
196492 days
196589 days
196691 days
1967193 days
1968123 days
1969136 days
1970116 days
1971193 days
1972149 days
1973141 days
1974183 days
1975116 days
1976145 days
197793 days
197894 days
1979133 days
1980149 days
198165 days
1982192 days
1983102 days
1984145 days
198571 days
1986115 days
198796 days
198895 days
1989103 days
1990102 days
1991125 days
199274 days
199377 days
199439 days
199767 days
19981 day
200061 days
200131 days
200274 days
2003137 days
200431 days
2005140 days
200690 days
200751 days
2008190 days
2009168 days
2010104 days
2011183 days
201231 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

31 years, 1964 to 2011

A day with at least 38.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 99.8 mm (3.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Palo Verde: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years38.3 mm (1.5 in)
5 years57.1 mm (2.2 in)
10 years68.5 mm (2.7 in)
25 years81.9 mm (3.2 in)
50 years91.2 mm (3.6 in)Longer than the 31 years of record
100 years99.8 mm (3.9 in)Longer than the 31 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, 31 years of values from 1964 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: 95.8 mm (3.8 in) in 1993; 85.9 mm (3.4 in) in 1970; 67.8 mm (2.7 in) in 1992.

Download the Data

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