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Zapata 1 S Weather Records (USC00419976)

Record envelope, standing records and threshold days for Zapata 1 S (USC00419976), Texas, United States, with 106 years of record.

Key Facts for Zapata 1 S

  • Zapata 1 S (USC00419976) is a weather station in Texas, United States at 26.87 latitude and -99.25 longitude, 98 m (320 ft) above sea level.
  • The station reports from 1909 to 2014, 106 years of record.
  • 1,464 records set at Zapata 1 S still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Zapata 1 S tied a daily record low maximum temperature of 34.4 C (93.9 F) on 30 July 2008.

About the Station

  • Location: Texas, United States, 26.87 latitude, -99.25 longitude.
  • Elevation: 98 m (320 ft).
  • Period of record: 1909 to 2014, 106 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Zapata 1 S, with 2026 drawn through them The band shows the record high and record low for each calendar day at Zapata 1 S. 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 Zapata 1 S. 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 Zapata 1 S, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.7 C (98.1 F)-10.6 C (12.9 F)n/an/a
Feb38.3 C (100.9 F)-5.6 C (21.9 F)n/an/a
Mar41.1 C (106.0 F)-5.6 C (21.9 F)n/an/a
Apr43.9 C (111.0 F)3.3 C (37.9 F)n/an/a
May45.6 C (114.1 F)10.0 C (50.0 F)n/an/a
Jun46.7 C (116.1 F)15.0 C (59.0 F)n/an/a
Jul45.0 C (113.0 F)17.8 C (64.0 F)n/an/a
Aug45.6 C (114.1 F)17.8 C (64.0 F)n/an/a
Sep43.9 C (111.0 F)7.2 C (45.0 F)n/an/a
Oct40.0 C (104.0 F)-1.1 C (30.0 F)n/an/a
Nov36.7 C (98.1 F)-0.6 C (30.9 F)n/an/a
Dec35.0 C (95.0 F)-9.4 C (15.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Zapata 1 S by the year they were set 1,464 records at Zapata 1 S still stand. 1909 holds the most, with 57. 02040601909: 571910: 561911: 151962: 131963: 461964: 451965: 331966: 341967: 261968: 161969: 311970: 331971: 301972: 281973: 461974: 571975: 281976: 341977: 221978: 141979: 281980: 501981: 231982: 271983: 221984: 21985: 201986: 331987: 281988: 171989: 421990: 331991: 391992: 291993: 191994: 231995: 341996: 451997: 371998: 451999: 182000: 322001: 152002: 162003: 242004: 102005: 192006: 262007: 282008: 161909196419691974197919841989199419992004
1,464 records at Zapata 1 S still stand. 1909 holds the most, with 57.
Standing records at Zapata 1 S by the year they were set
Year setStanding records
190957
191056
191115
196213
196346
196445
196533
196634
196726
196816
196931
197033
197130
197228
197346
197457
197528
197634
197722
197814
197928
198050
198123
198227
198322
19842
198520
198633
198728
198817
198942
199033
199139
199229
199319
199423
199534
199645
199737
199845
199918
200032
200115
200216
200324
200410
200519
200626
200728
200816

All-Time Record Progression

1 new records
When Zapata 1 S set new all-time records 1 all-time records were set at Zapata 1 S between 16 June 1998 and 16 June 1998. Each dot is a new record. Record high maximum temperature16 June 1998: Record high maximum temperature 46.7 C (116.1 F)
1 all-time records were set at Zapata 1 S between 16 June 1998 and 16 June 1998. Each dot is a new record.
When Zapata 1 S set new all-time records
DateKindDetail
1998-06-16Record high maximum temperatureRecord high maximum temperature 46.7 C (116.1 F)

Wettest Day of Each Month

Apr: 154.9 mm (6.1 in)
Record daily precipitation for each month at Zapata 1 S The wettest day on record for each calendar month at Zapata 1 S. The most was 154.9 mm (6.1 in) on 14 April 1966. 050100150200 Jan: 32.3 mm (1.3 in), 14 January 1910 Jan Feb: 71.1 mm (2.8 in), 21 February 1990 Feb Mar: 54.1 mm (2.1 in), 14 March 1985 Mar Apr: 154.9 mm (6.1 in), 14 April 1966 Apr May: 118.1 mm (4.6 in), 16 May 1969 May Jun: 84.6 mm (3.3 in), 21 June 1973 Jun Jul: 106.7 mm (4.2 in), 21 July 2005 Jul Aug: 78.7 mm (3.1 in), 27 August 1909 Aug Sep: 152.1 mm (6.0 in), 14 September 1951 Sep Oct: 97.8 mm (3.9 in), 3 October 1977 Oct Nov: 72.1 mm (2.8 in), 17 November 2001 Nov Dec: 41.1 mm (1.6 in), 27 December 1978 Dec
The wettest day on record for each calendar month at Zapata 1 S. The most was 154.9 mm (6.1 in) on 14 April 1966.
Record daily precipitation for each month at Zapata 1 S
MonthRecord daily precipitation (mm)Date
Jan32.3 mm (1.3 in)14 January 1910
Feb71.1 mm (2.8 in)21 February 1990
Mar54.1 mm (2.1 in)14 March 1985
Apr154.9 mm (6.1 in)14 April 1966
May118.1 mm (4.6 in)16 May 1969
Jun84.6 mm (3.3 in)21 June 1973
Jul106.7 mm (4.2 in)21 July 2005
Aug78.7 mm (3.1 in)27 August 1909
Sep152.1 mm (6.0 in)14 September 1951
Oct97.8 mm (3.9 in)3 October 1977
Nov72.1 mm (2.8 in)17 November 2001
Dec41.1 mm (1.6 in)27 December 1978

Period of Record Coverage

1909 to 2008
Days with data per year at Zapata 1 S 50 years of record at Zapata 1 S, 1909 to 2008. 13 years have data for under 90 percent of days and are left out of rankings: 1911, 1962, 1963, 1964, 1965, 1975, 1983, 1984 and others. 1909: 351 of 365 days1910: 365 of 365 days1911: 31 of 365 days1962: 96 of 365 days1963: 189 of 365 days1964: 276 of 366 days1965: 282 of 365 days1966: 347 of 365 days1967: 359 of 365 days1968: 361 of 366 days1969: 363 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 337 of 366 days1973: 352 of 365 days1974: 350 of 365 days1975: 299 of 365 days1976: 358 of 366 days1977: 350 of 365 days1978: 364 of 365 days1979: 362 of 365 days1980: 351 of 366 days1981: 330 of 365 days1982: 360 of 365 days1983: 324 of 365 days1984: 30 of 366 days1985: 280 of 365 days1986: 355 of 365 days1987: 357 of 365 days1988: 334 of 366 days1989: 350 of 365 days1990: 360 of 365 days1991: 361 of 365 days1992: 363 of 366 days1993: 359 of 365 days1994: 351 of 365 days1995: 362 of 365 days1996: 366 of 366 days1997: 364 of 365 days1998: 357 of 365 days1999: 280 of 365 days2000: 301 of 366 days2001: 284 of 365 days2002: 365 of 365 days2003: 348 of 365 days2004: 363 of 366 days2005: 348 of 365 days2006: 357 of 365 days2007: 351 of 365 days2008: 193 of 366 days19101970198019902000
50 years of record at Zapata 1 S, 1909 to 2008. 13 years have data for under 90 percent of days and are left out of rankings: 1911, 1962, 1963, 1964, 1965, 1975, 1983, 1984 and others.
Days with data per year at Zapata 1 S
YearDays with dataShare of yearComplete
190935196%Yes
1910365100%Yes
1911318%No
19629626%No
196318952%No
196427675%No
196528277%No
196634795%Yes
196735998%Yes
196836199%Yes
196936399%Yes
1970365100%Yes
1971365100%Yes
197233792%Yes
197335296%Yes
197435096%Yes
197529982%No
197635898%Yes
197735096%Yes
1978364100%Yes
197936299%Yes
198035196%Yes
198133090%Yes
198236099%Yes
198332489%No
1984308%No
198528077%No
198635597%Yes
198735798%Yes
198833491%Yes
198935096%Yes
199036099%Yes
199136199%Yes
199236399%Yes
199335998%Yes
199435196%Yes
199536299%Yes
1996366100%Yes
1997364100%Yes
199835798%Yes
199928077%No
200030182%No
200128478%No
2002365100%Yes
200334895%Yes
200436399%Yes
200534895%Yes
200635798%Yes
200735196%Yes
200819353%No

Latest Records

20
Latest records at Zapata 1 S
DateStationRecordValueBeat old record byOld record stoodSignificance
30 July 2008Zapata 1 S, USdaily low max (Tie)34.4 C (93.9 F)tie1 year2 of 100 (Routine)
25 July 2008Zapata 1 S, USdaily low max (Tie)29.4 C (84.9 F)tie21 years4 of 100 (Routine)
24 July 2008Zapata 1 S, USdaily low max28.9 C (84.0 F)4.4 C (7.9 F)32 years35 of 100 (Notable)
24 July 2008Zapata 1 S, USdaily rain9.9 mm (0.39 in)1.0 mm (0.04 in)38 years20 of 100 (Routine)
23 July 2008Zapata 1 S, USdaily low max27.2 C (81.0 F)6.7 C (12.1 F)32 years44 of 100 (Notable)
23 July 2008Zapata 1 S, USdaily rain72.1 mm (2.8 in)23.3 mm (0.9 in)4 years24 of 100 (Routine)
9 July 2008Zapata 1 S, USdaily low max32.8 C (91.0 F)0.5 C (0.9 F)32 years20 of 100 (Routine)
7 July 2008Zapata 1 S, USdaily low min20.6 C (69.1 F)0.5 C (0.9 F)34 years23 of 100 (Routine)
6 July 2008Zapata 1 S, USdaily low max (Tie)30.6 C (87.1 F)tie32 years4 of 100 (Routine)
4 July 2008Zapata 1 S, USdaily low max (Tie)31.1 C (88.0 F)tie23 years4 of 100 (Routine)
2 July 2008Zapata 1 S, USdaily low min20.6 C (69.1 F)1.1 C (2.0 F)45 years30 of 100 (Routine)
2 July 2008Zapata 1 S, USdaily low max (Tie)31.1 C (88.0 F)tie45 years5 of 100 (Routine)
22 May 2008Zapata 1 S, USdaily high max (Tie)41.7 C (107.1 F)tie98 years9 of 100 (Routine)
17 May 2008Zapata 1 S, USdaily low max (Tie)28.9 C (84.0 F)tie3 years2 of 100 (Routine)
29 April 2008Zapata 1 S, USdaily low max (Tie)26.7 C (80.1 F)tie27 years4 of 100 (Routine)
10 April 2008Zapata 1 S, USdaily high max37.8 C (100.0 F)1.7 C (3.1 F)9 years15 of 100 (Routine)
29 March 2008Zapata 1 S, USdaily high min (Tie)22.2 C (72.0 F)tie29 years4 of 100 (Routine)
17 March 2008Zapata 1 S, USdaily high min23.3 C (73.9 F)3.3 C (5.9 F)26 years23 of 100 (Routine)
17 March 2008Zapata 1 S, USdaily high max37.8 C (100.0 F)2.8 C (5.0 F)8 years17 of 100 (Routine)
16 March 2008Zapata 1 S, USdaily high max38.9 C (102.0 F)1.1 C (2.0 F)6 years13 of 100 (Routine)

Climate Trend

31 complete years, 1910 to 2007
Annual mean temperature at Zapata 1 S as warming stripes, 1910 to 2007 One stripe for each of 31 complete years at Zapata 1 S, 1910 to 2007. Blue stripes are years cooler than the station's own mean of 23.5 C (74.3 F); red stripes are warmer. The coolest year was 1973, at 22.4 C (72.4 F), and the warmest was 1998, at 24.9 C (76.7 F). The strongest colour marks a difference of 1.4 C (2.5 F). 1910: 24.2 C, +0.7 C from the station mean1967: 23.7 C, +0.2 C from the station mean1968: 22.9 C, -0.6 C from the station mean1969: 23.9 C, +0.4 C from the station mean1970: 23.0 C, -0.5 C from the station mean1971: 24.2 C, +0.7 C from the station mean1972: 23.2 C, -0.3 C from the station mean1973: 22.4 C, -1.1 C from the station mean1974: 23.1 C, -0.4 C from the station mean1976: 22.7 C, -0.8 C from the station mean1977: 23.9 C, +0.4 C from the station mean1978: 23.5 C, 0.0 C from the station mean1979: 23.3 C, -0.2 C from the station mean1982: 24.2 C, +0.7 C from the station mean1986: 24.4 C, +0.9 C from the station mean1987: 23.4 C, -0.2 C from the station mean1989: 23.1 C, -0.4 C from the station mean1990: 24.1 C, +0.6 C from the station mean1991: 23.6 C, +0.1 C from the station mean1992: 23.0 C, -0.5 C from the station mean1993: 23.1 C, -0.4 C from the station mean1995: 23.7 C, +0.2 C from the station mean1996: 23.8 C, +0.3 C from the station mean1997: 22.9 C, -0.6 C from the station mean1998: 24.9 C, +1.3 C from the station mean2002: 23.3 C, -0.2 C from the station mean2003: 23.0 C, -0.5 C from the station mean2004: 23.1 C, -0.4 C from the station mean2005: 23.9 C, +0.4 C from the station mean2006: 24.3 C, +0.8 C from the station mean2007: 23.0 C, -0.5 C from the station mean1910192019301940195019601970198019902000
One stripe for each of 31 complete years at Zapata 1 S, 1910 to 2007. Blue stripes are years cooler than the station's own mean of 23.5 C (74.3 F); red stripes are warmer. The coolest year was 1973, at 22.4 C (72.4 F), and the warmest was 1998, at 24.9 C (76.7 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Zapata 1 S as warming stripes, 1910 to 2007
YearAnnual mean temperatureDifference from the station mean
191024.2 C+0.70 C
196723.7 C+0.19 C
196822.9 C-0.65 C
196923.9 C+0.37 C
197023.0 C-0.52 C
197124.2 C+0.71 C
197223.2 C-0.30 C
197322.4 C-1.08 C
197423.1 C-0.39 C
197622.7 C-0.84 C
197723.9 C+0.40 C
197823.5 C-0.05 C
197923.3 C-0.23 C
198224.2 C+0.71 C
198624.4 C+0.90 C
198723.4 C-0.16 C
198923.1 C-0.40 C
199024.1 C+0.63 C
199123.6 C+0.12 C
199223.0 C-0.55 C
199323.1 C-0.42 C
199523.7 C+0.22 C
199623.8 C+0.28 C
199722.9 C-0.63 C
199824.9 C+1.34 C
200223.3 C-0.22 C
200323.0 C-0.53 C
200423.1 C-0.41 C
200523.9 C+0.40 C
200624.3 C+0.82 C
200723.0 C-0.55 C

The fitted trend in annual mean temperature here over 1910 to 2007 is -0.02 C (-0.14 to 0.10) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.04 F (-0.26 to 0.17) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Zapata 1 S
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.02 C (-0.14 to 0.10) per decade-0.04 F (-0.26 to 0.17) per decade1910 to 200731Not clearly different from zero
Mean daily maximum-0.2 C (-0.4 to -0.1) per decade-0.4 F (-0.7 to -0.1) per decade1910 to 200731Fall
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.3 F (0.1 to 0.6) per decade1910 to 200731Rise

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

1909 to 2014
Yearly extremes at Zapata 1 S: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.7 C (116.1 F)199841.7 C (107.1 F)50
Coldest night (TNn)-10.6 C (12.9 F)1911-2.2 C (28.0 F)50
Wettest day (Rx1day)154.9 mm (6.1 in)196669.9 mm (2.8 in)55
Wettest five days (Rx5day)259.1 mm (10.2 in)195194.4 mm (3.7 in)54
Longest dry spell (CDD)104 days196651 days55

Hottest day (TXx)

Hottest day (TXx) at Zapata 1 S by year The hottest day of the year at Zapata 1 S, 1909 to 2014. The record is 46.7 C (116.1 F) in 1998, marked on the chart; the median year is 41.7 C (107.1 F). 303540455019201940196019802000Record: 46.7 C (116.1 F) in 1998
The hottest day of the year at Zapata 1 S, 1909 to 2014. The record is 46.7 C (116.1 F) in 1998, marked on the chart; the median year is 41.7 C (107.1 F).
Hottest day (TXx) at Zapata 1 S by year
YearHottest day (TXx)
190945.6 C (114.1 F)
191045.0 C (113.0 F)
191133.9 C (93.0 F)
1948n/a
1949n/a
1950n/a
1951n/a
196241.7 C (107.1 F)
196341.7 C (107.1 F)
196444.4 C (111.9 F)
196542.2 C (108.0 F)
196640.0 C (104.0 F)
196740.0 C (104.0 F)
196839.4 C (102.9 F)
196941.7 C (107.1 F)
197041.7 C (107.1 F)
197142.2 C (108.0 F)
197241.1 C (106.0 F)
197342.8 C (109.0 F)
197442.8 C (109.0 F)
197541.7 C (107.1 F)
197640.0 C (104.0 F)
197740.6 C (105.1 F)
197841.1 C (106.0 F)
197941.1 C (106.0 F)
198043.3 C (109.9 F)
198140.0 C (104.0 F)
198240.6 C (105.1 F)
198341.7 C (107.1 F)
198441.1 C (106.0 F)
198540.0 C (104.0 F)
198643.3 C (109.9 F)
198740.6 C (105.1 F)
198841.7 C (107.1 F)
198943.3 C (109.9 F)
199041.7 C (107.1 F)
199140.6 C (105.1 F)
199241.7 C (107.1 F)
199340.0 C (104.0 F)
199441.1 C (106.0 F)
199545.6 C (114.1 F)
199641.7 C (107.1 F)
199741.7 C (107.1 F)
199846.7 C (116.1 F)
199943.3 C (109.9 F)
200043.9 C (111.0 F)
200141.7 C (107.1 F)
200242.2 C (108.0 F)
200341.7 C (107.1 F)
200439.4 C (102.9 F)
200542.2 C (108.0 F)
200643.9 C (111.0 F)
200739.4 C (102.9 F)
200841.7 C (107.1 F)
2014n/a

Coldest night (TNn)

Coldest night (TNn) at Zapata 1 S by year The coldest night of the year at Zapata 1 S, 1909 to 2014. The record is -10.6 C (12.9 F) in 1911, marked on the chart; the median year is -2.2 C (28.0 F). -20-100102019201940196019802000Record: -10.6 C (12.9 F) in 1911
The coldest night of the year at Zapata 1 S, 1909 to 2014. The record is -10.6 C (12.9 F) in 1911, marked on the chart; the median year is -2.2 C (28.0 F).
Coldest night (TNn) at Zapata 1 S by year
YearColdest night (TNn)
1909-2.2 C (28.0 F)
1910-7.2 C (19.0 F)
1911-10.6 C (12.9 F)
1948n/a
1949n/a
1950n/a
1951n/a
196213.3 C (55.9 F)
1963-2.2 C (28.0 F)
1964-2.8 C (27.0 F)
1965-5.6 C (21.9 F)
1966-3.3 C (26.1 F)
1967-1.7 C (28.9 F)
1968-1.7 C (28.9 F)
1969-2.8 C (27.0 F)
1970-4.4 C (24.1 F)
1971-0.6 C (30.9 F)
1972-3.3 C (26.1 F)
1973-6.7 C (19.9 F)
1974-2.2 C (28.0 F)
1975-6.1 C (21.0 F)
1976-3.3 C (26.1 F)
1977-2.2 C (28.0 F)
1978-4.4 C (24.1 F)
1979-3.9 C (25.0 F)
1980-1.1 C (30.0 F)
1981-0.6 C (30.9 F)
1982-2.8 C (27.0 F)
1983-9.4 C (15.1 F)
19844.4 C (39.9 F)
19851.7 C (35.1 F)
1986-0.6 C (30.9 F)
19871.7 C (35.1 F)
1988-1.1 C (30.0 F)
1989-8.9 C (16.0 F)
1990-2.2 C (28.0 F)
19912.8 C (37.0 F)
19920.0 C (32.0 F)
1993-1.1 C (30.0 F)
1994-1.7 C (28.9 F)
19951.7 C (35.1 F)
1996-6.1 C (21.0 F)
1997-1.7 C (28.9 F)
1998-2.2 C (28.0 F)
1999-2.2 C (28.0 F)
20002.2 C (36.0 F)
2001-0.6 C (30.9 F)
2002-3.3 C (26.1 F)
2003-1.7 C (28.9 F)
2004-2.2 C (28.0 F)
20051.7 C (35.1 F)
20060.0 C (32.0 F)
2007-1.7 C (28.9 F)
2008-0.6 C (30.9 F)
2014n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Zapata 1 S by year The wettest day of the year at Zapata 1 S, 1909 to 2014. The record is 154.9 mm (6.1 in) in 1966, marked on the chart; the median year is 69.9 mm (2.8 in). 05010015020019201940196019802000Record: 154.9 mm (6.1 in) in 1966
The wettest day of the year at Zapata 1 S, 1909 to 2014. The record is 154.9 mm (6.1 in) in 1966, marked on the chart; the median year is 69.9 mm (2.8 in).
Wettest day (Rx1day) at Zapata 1 S by year
YearWettest day (Rx1day)
190978.7 mm (3.1 in)
191058.4 mm (2.3 in)
19113.3 mm (0.13 in)
194833.8 mm (1.3 in)
194990.4 mm (3.6 in)
195078.7 mm (3.1 in)
1951152.1 mm (6.0 in)
19620.0 mm (0.00 in)
196327.7 mm (1.1 in)
196437.6 mm (1.5 in)
196533.0 mm (1.3 in)
1966154.9 mm (6.1 in)
196779.0 mm (3.1 in)
1968147.6 mm (5.8 in)
1969118.1 mm (4.6 in)
197037.8 mm (1.5 in)
197186.4 mm (3.4 in)
197266.3 mm (2.6 in)
197384.6 mm (3.3 in)
197435.6 mm (1.4 in)
1975109.2 mm (4.3 in)
197663.5 mm (2.5 in)
197797.8 mm (3.9 in)
197878.2 mm (3.1 in)
1979114.3 mm (4.5 in)
198089.4 mm (3.5 in)
198167.3 mm (2.6 in)
198266.5 mm (2.6 in)
198335.1 mm (1.4 in)
19843.8 mm (0.15 in)
198579.2 mm (3.1 in)
198664.0 mm (2.5 in)
198734.3 mm (1.4 in)
198872.4 mm (2.9 in)
198959.7 mm (2.4 in)
199071.1 mm (2.8 in)
199160.5 mm (2.4 in)
199266.0 mm (2.6 in)
199380.8 mm (3.2 in)
199469.9 mm (2.8 in)
199579.0 mm (3.1 in)
199638.9 mm (1.5 in)
199741.7 mm (1.6 in)
199847.0 mm (1.9 in)
199978.7 mm (3.1 in)
200044.5 mm (1.8 in)
200172.1 mm (2.8 in)
200276.2 mm (3.0 in)
2003101.6 mm (4.0 in)
200480.0 mm (3.1 in)
2005106.7 mm (4.2 in)
200666.3 mm (2.6 in)
200743.4 mm (1.7 in)
200872.1 mm (2.8 in)
20140.5 mm (0.02 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Zapata 1 S by year The wettest five days of the year at Zapata 1 S, 1909 to 2014. The record is 259.1 mm (10.2 in) in 1951, marked on the chart; the median year is 94.4 mm (3.7 in). 010020030019201940196019802000Record: 259.1 mm (10.2 in) in 1951
The wettest five days of the year at Zapata 1 S, 1909 to 2014. The record is 259.1 mm (10.2 in) in 1951, marked on the chart; the median year is 94.4 mm (3.7 in).
Wettest five days (Rx5day) at Zapata 1 S by year
YearWettest five days (Rx5day)
1909120.1 mm (4.7 in)
1910104.7 mm (4.1 in)
19113.3 mm (0.13 in)
194833.8 mm (1.3 in)
1949176.8 mm (7.0 in)
1950119.3 mm (4.7 in)
1951259.1 mm (10.2 in)
19620.0 mm (0.00 in)
196327.7 mm (1.1 in)
196452.4 mm (2.1 in)
196552.1 mm (2.1 in)
1966200.0 mm (7.9 in)
1967253.2 mm (10.0 in)
1968184.7 mm (7.3 in)
1969154.2 mm (6.1 in)
197074.2 mm (2.9 in)
1971234.0 mm (9.2 in)
1972151.1 mm (5.9 in)
1973162.1 mm (6.4 in)
197438.6 mm (1.5 in)
1975116.8 mm (4.6 in)
1976119.4 mm (4.7 in)
197797.8 mm (3.9 in)
197894.7 mm (3.7 in)
1979134.6 mm (5.3 in)
1980100.1 mm (3.9 in)
1981110.5 mm (4.4 in)
198298.0 mm (3.9 in)
198363.1 mm (2.5 in)
19843.8 mm (0.15 in)
198598.5 mm (3.9 in)
198671.9 mm (2.8 in)
198750.3 mm (2.0 in)
198883.8 mm (3.3 in)
198959.7 mm (2.4 in)
199080.4 mm (3.2 in)
199182.9 mm (3.3 in)
199281.5 mm (3.2 in)
1993105.4 mm (4.1 in)
199469.9 mm (2.8 in)
199594.1 mm (3.7 in)
199672.2 mm (2.8 in)
199759.7 mm (2.4 in)
199853.4 mm (2.1 in)
199981.2 mm (3.2 in)
200051.5 mm (2.0 in)
2001102.8 mm (4.0 in)
200283.4 mm (3.3 in)
2003129.3 mm (5.1 in)
200490.5 mm (3.6 in)
2005108.7 mm (4.3 in)
200697.1 mm (3.8 in)
200797.8 mm (3.9 in)
200890.4 mm (3.6 in)
2014n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Zapata 1 S by year The longest dry spell of the year at Zapata 1 S, 1909 to 2014. The record is 104 days in 1966, marked on the chart; the median year is 51 days. 05010015019201940196019802000Record: 104 days in 1966
The longest dry spell of the year at Zapata 1 S, 1909 to 2014. The record is 104 days in 1966, marked on the chart; the median year is 51 days.
Longest dry spell (CDD) at Zapata 1 S by year
YearLongest dry spell (CDD)
190947 days
191055 days
191118 days
194848 days
194932 days
195078 days
195185 days
196262 days
196356 days
196445 days
196577 days
1966104 days
196742 days
196834 days
196965 days
197070 days
197156 days
197222 days
197338 days
197437 days
197550 days
197642 days
197799 days
197852 days
197975 days
198097 days
198166 days
198269 days
198341 days
198421 days
198554 days
198633 days
198729 days
198837 days
198961 days
199053 days
199139 days
199240 days
199368 days
199428 days
199557 days
199663 days
199725 days
199888 days
199942 days
200042 days
200156 days
200251 days
200343 days
200428 days
200568 days
200654 days
200735 days
200852 days
20141 day

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

36 years, 1909 to 2007

A day with at least 68.7 mm (2.7 in) of rain is expected about once in 2 years. A day with at least 161.3 mm (6.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Zapata 1 S: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years68.7 mm (2.7 in)
5 years94.4 mm (3.7 in)
10 years111.0 mm (4.4 in)
25 years131.6 mm (5.2 in)
50 years146.7 mm (5.8 in)Longer than the 36 years of record
100 years161.3 mm (6.4 in)Longer than the 36 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, 36 years of values from 1909 to 2007.

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: 154.9 mm (6.1 in) in 1966; 147.6 mm (5.8 in) in 1968; 118.1 mm (4.6 in) in 1969.

Download the Data

  • Data for Zapata 1 S standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Zapata 1 S 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

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