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Udorn Ab (USAF) Weather Records (TH000048354)

Record envelope, standing records and threshold days for Udorn Ab (USAF) (TH000048354), Thailand, with 35 years of record.

Key Facts for Udorn Ab (USAF)

  • Udorn Ab (USAF) (TH000048354) is a weather station in Thailand at 17.38 latitude and 102.80 longitude, 178 m (584 ft) above sea level.
  • The station reports from 1951 to 1985, 35 years of record.
  • 1,464 records set at Udorn Ab (USAF) still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Udorn Ab (USAF) set a daily record high maximum temperature of 33.8 C (92.8 F) on 28 November 1985.

About the Station

  • Location: Thailand, 17.38 latitude, 102.80 longitude.
  • Elevation: 178 m (584 ft).
  • Period of record: 1951 to 1985, 35 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 Udorn Ab (USAF), with 2026 drawn through them The band shows the record high and record low for each calendar day at Udorn Ab (USAF). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 01020304050 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Udorn Ab (USAF). 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 Udorn Ab (USAF), with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan36.5 C (97.7 F)2.5 C (36.5 F)n/an/a
Feb38.5 C (101.3 F)9.4 C (48.9 F)n/an/a
Mar41.3 C (106.3 F)10.0 C (50.0 F)n/an/a
Apr43.9 C (111.0 F)14.1 C (57.4 F)n/an/a
May42.6 C (108.7 F)18.8 C (65.8 F)n/an/a
Jun39.7 C (103.5 F)21.5 C (70.7 F)n/an/a
Jul38.0 C (100.4 F)20.4 C (68.7 F)n/an/a
Aug37.1 C (98.8 F)21.0 C (69.8 F)n/an/a
Sep35.8 C (96.4 F)20.5 C (68.9 F)n/an/a
Oct35.9 C (96.6 F)15.6 C (60.1 F)n/an/a
Nov37.2 C (99.0 F)8.4 C (47.1 F)n/an/a
Dec35.1 C (95.2 F)5.5 C (41.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Udorn Ab (USAF) by the year they were set 1,464 records at Udorn Ab (USAF) still stand. 1959 holds the most, with 78. 0204060801951: 491952: 541953: 401954: 671955: 541956: 411957: 571958: 601959: 781960: 531961: 491962: 711963: 461964: 251965: 251966: 411967: 411968: 261969: 431970: 401971: 501972: 381973: 461974: 501975: 611976: 281977: 541978: 341979: 421980: 331981: 101982: 111983: 271984: 81985: 12195119551959196319671971197519791983
1,464 records at Udorn Ab (USAF) still stand. 1959 holds the most, with 78.
Standing records at Udorn Ab (USAF) by the year they were set
Year setStanding records
195149
195254
195340
195467
195554
195641
195757
195860
195978
196053
196149
196271
196346
196425
196525
196641
196741
196826
196943
197040
197150
197238
197346
197450
197561
197628
197754
197834
197942
198033
198110
198211
198327
19848
198512

All-Time Record Progression

1 new records
When Udorn Ab (USAF) set new all-time records 1 all-time records were set at Udorn Ab (USAF) between 30 December 1983 and 30 December 1983. Each dot is a new record. Record low maximum temperature30 December 1983: Record low maximum temperature 16.4 C (61.5 F)
1 all-time records were set at Udorn Ab (USAF) between 30 December 1983 and 30 December 1983. Each dot is a new record.
When Udorn Ab (USAF) set new all-time records
DateKindDetail
1983-12-30Record low maximum temperatureRecord low maximum temperature 16.4 C (61.5 F)

Wettest Day of Each Month

Aug: 247.0 mm (9.7 in)
Record daily precipitation for each month at Udorn Ab (USAF) The wettest day on record for each calendar month at Udorn Ab (USAF). The most was 247.0 mm (9.7 in) on 16 August 1974. 0100200300 Jan: 26.4 mm (1.0 in), 10 January 1951 Jan Feb: 125.1 mm (4.9 in), 20 February 1964 Feb Mar: 84.8 mm (3.3 in), 11 March 1972 Mar Apr: 112.4 mm (4.4 in), 19 April 1977 Apr May: 146.0 mm (5.7 in), 21 May 1980 May Jun: 153.6 mm (6.0 in), 12 June 1967 Jun Jul: 106.3 mm (4.2 in), 13 July 1971 Jul Aug: 247.0 mm (9.7 in), 16 August 1974 Aug Sep: 155.0 mm (6.1 in), 24 September 1952 Sep Oct: 94.5 mm (3.7 in), 13 October 1960 Oct Nov: 65.7 mm (2.6 in), 8 November 1963 Nov Dec: 37.7 mm (1.5 in), 20 December 1971 Dec
The wettest day on record for each calendar month at Udorn Ab (USAF). The most was 247.0 mm (9.7 in) on 16 August 1974.
Record daily precipitation for each month at Udorn Ab (USAF)
MonthRecord daily precipitation (mm)Date
Jan26.4 mm (1.0 in)10 January 1951
Feb125.1 mm (4.9 in)20 February 1964
Mar84.8 mm (3.3 in)11 March 1972
Apr112.4 mm (4.4 in)19 April 1977
May146.0 mm (5.7 in)21 May 1980
Jun153.6 mm (6.0 in)12 June 1967
Jul106.3 mm (4.2 in)13 July 1971
Aug247.0 mm (9.7 in)16 August 1974
Sep155.0 mm (6.1 in)24 September 1952
Oct94.5 mm (3.7 in)13 October 1960
Nov65.7 mm (2.6 in)8 November 1963
Dec37.7 mm (1.5 in)20 December 1971

Period of Record Coverage

1951 to 1985
Days with data per year at Udorn Ab (USAF) 35 years of record at Udorn Ab (USAF), 1951 to 1985. Every year has data for at least 90 percent of its days. 1951: 365 of 365 days1952: 366 of 366 days1953: 364 of 365 days1954: 364 of 365 days1955: 364 of 365 days1956: 365 of 366 days1957: 364 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 364 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 362 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 364 of 365 days1978: 364 of 365 days1979: 364 of 365 days1980: 366 of 366 days1981: 364 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1955196019651970197519801985
35 years of record at Udorn Ab (USAF), 1951 to 1985. Every year has data for at least 90 percent of its days.
Days with data per year at Udorn Ab (USAF)
YearDays with dataShare of yearComplete
1951365100%Yes
1952366100%Yes
1953364100%Yes
1954364100%Yes
1955364100%Yes
1956365100%Yes
1957364100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963364100%Yes
1964366100%Yes
1965365100%Yes
1966364100%Yes
1967365100%Yes
1968366100%Yes
196936299%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977364100%Yes
1978364100%Yes
1979364100%Yes
1980366100%Yes
1981364100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes

Latest Records

20
Latest records at Udorn Ab (USAF)
DateStationRecordValueBeat old record byOld record stoodSignificance
28 November 1985Udorn Ab (USAF), THdaily high max33.8 C (92.8 F)0.1 C (0.2 F)24 years10 of 100 (Routine)
13 November 1985Udorn Ab (USAF), THdaily rain3.0 mm (0.12 in)1.4 mm (0.06 in)4 years5 of 100 (Routine)
22 October 1985Udorn Ab (USAF), THdaily low max24.2 C (75.6 F)4.0 C (7.2 F)32 years33 of 100 (Routine)
16 October 1985Udorn Ab (USAF), THdaily rain26.2 mm (1.0 in)18.1 mm (0.7 in)0 years15 of 100 (Routine)
3 October 1985Udorn Ab (USAF), THdaily low max25.1 C (77.2 F)1.1 C (2.0 F)2 years8 of 100 (Routine)
22 July 1985Udorn Ab (USAF), THdaily high max35.1 C (95.2 F)0.3 C (0.5 F)6 years5 of 100 (Routine)
30 June 1985Udorn Ab (USAF), THdaily low max25.2 C (77.4 F)0.2 C (0.4 F)20 years9 of 100 (Routine)
20 June 1985Udorn Ab (USAF), THdaily low max25.6 C (78.1 F)3.4 C (6.1 F)34 years27 of 100 (Routine)
14 June 1985Udorn Ab (USAF), THdaily low max26.7 C (80.1 F)2.1 C (3.8 F)10 years15 of 100 (Routine)
14 May 1985Udorn Ab (USAF), THdaily low max29.7 C (85.5 F)0.3 C (0.5 F)7 years6 of 100 (Routine)
12 May 1985Udorn Ab (USAF), THdaily low max29.5 C (85.1 F)0.1 C (0.2 F)30 years12 of 100 (Routine)
7 May 1985Udorn Ab (USAF), THdaily rain30.8 mm (1.2 in)9.3 mm (0.37 in)32 years17 of 100 (Routine)
23 April 1985Udorn Ab (USAF), THdaily rain98.7 mm (3.9 in)68.5 mm (2.7 in)8 years45 of 100 (Notable)
17 April 1985Udorn Ab (USAF), THdaily low max27.6 C (81.7 F)3.7 C (6.7 F)4 years15 of 100 (Routine)
24 February 1985Udorn Ab (USAF), THdaily low max20.4 C (68.7 F)2.4 C (4.3 F)17 years14 of 100 (Routine)
23 February 1985Udorn Ab (USAF), THdaily low max23.0 C (73.4 F)1.2 C (2.2 F)31 years15 of 100 (Routine)
15 February 1985Udorn Ab (USAF), THdaily rain4.6 mm (0.18 in)3.9 mm (0.15 in)31 years14 of 100 (Routine)
4 February 1985Udorn Ab (USAF), THdaily rain11.2 mm (0.4 in)8.5 mm (0.33 in)27 years16 of 100 (Routine)
25 January 1985Udorn Ab (USAF), THdaily rain5.8 mm (0.23 in)0.3 mm (0.01 in)32 years12 of 100 (Routine)
9 November 1984Udorn Ab (USAF), THdaily rain3.5 mm (0.14 in)2.0 mm (0.08 in)12 years8 of 100 (Routine)

Climate Trend

30 complete years, 1951 to 1980
Annual mean temperature at Udorn Ab (USAF) as warming stripes, 1951 to 1980 One stripe for each of 30 complete years at Udorn Ab (USAF), 1951 to 1980. Blue stripes are years cooler than the station's own mean of 26.8 C (80.2 F); red stripes are warmer. The coolest year was 1971, at 26.0 C (78.8 F), and the warmest was 1979, at 27.3 C (81.1 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1951: 26.5 C, -0.2 C from the station mean1952: 26.9 C, +0.2 C from the station mean1953: 27.2 C, +0.4 C from the station mean1954: 27.2 C, +0.4 C from the station mean1955: 26.4 C, -0.4 C from the station mean1956: 26.5 C, -0.3 C from the station mean1957: 27.2 C, +0.4 C from the station mean1958: 27.0 C, +0.2 C from the station mean1959: 27.3 C, +0.5 C from the station mean1960: 27.1 C, +0.3 C from the station mean1961: 27.1 C, +0.3 C from the station mean1962: 26.5 C, -0.3 C from the station mean1963: 26.3 C, -0.5 C from the station mean1964: 26.3 C, -0.5 C from the station mean1965: 26.6 C, -0.2 C from the station mean1966: 27.1 C, +0.3 C from the station mean1967: 26.3 C, -0.5 C from the station mean1968: 26.7 C, -0.1 C from the station mean1969: 26.8 C, 0.0 C from the station mean1970: 26.8 C, 0.0 C from the station mean1971: 26.0 C, -0.8 C from the station mean1972: 26.9 C, +0.1 C from the station mean1973: 27.1 C, +0.3 C from the station mean1974: 26.5 C, -0.3 C from the station mean1975: 26.7 C, -0.1 C from the station mean1976: 26.4 C, -0.4 C from the station mean1977: 26.8 C, 0.0 C from the station mean1978: 26.8 C, +0.1 C from the station mean1979: 27.3 C, +0.5 C from the station mean1980: 27.3 C, +0.5 C from the station mean1951195519601965197019751980
One stripe for each of 30 complete years at Udorn Ab (USAF), 1951 to 1980. Blue stripes are years cooler than the station's own mean of 26.8 C (80.2 F); red stripes are warmer. The coolest year was 1971, at 26.0 C (78.8 F), and the warmest was 1979, at 27.3 C (81.1 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at Udorn Ab (USAF) as warming stripes, 1951 to 1980
YearAnnual mean temperatureDifference from the station mean
195126.5 C-0.24 C
195226.9 C+0.16 C
195327.2 C+0.43 C
195427.2 C+0.42 C
195526.4 C-0.36 C
195626.5 C-0.28 C
195727.2 C+0.43 C
195827.0 C+0.24 C
195927.3 C+0.50 C
196027.1 C+0.35 C
196127.1 C+0.29 C
196226.5 C-0.33 C
196326.3 C-0.47 C
196426.3 C-0.51 C
196526.6 C-0.19 C
196627.1 C+0.35 C
196726.3 C-0.45 C
196826.7 C-0.13 C
196926.8 C+0.02 C
197026.8 C-0.03 C
197126.0 C-0.80 C
197226.9 C+0.13 C
197327.1 C+0.30 C
197426.5 C-0.31 C
197526.7 C-0.10 C
197626.4 C-0.42 C
197726.8 C-0.01 C
197826.8 C+0.06 C
197927.3 C+0.51 C
198027.3 C+0.50 C

The fitted trend in annual mean temperature here over 1951 to 1980 is -0.03 C (-0.19 to 0.13) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.1 F (-0.3 to 0.2) per decade. The slope is a straight line fitted to 30 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Udorn Ab (USAF)
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.03 C (-0.19 to 0.13) per decade-0.1 F (-0.3 to 0.2) per decade1951 to 198030Not clearly different from zero
Mean daily maximum-0.6 C (-0.8 to -0.3) per decade-1.0 F (-1.5 to -0.6) per decade1951 to 198030Fall
Mean daily minimum0.5 C (0.3 to 0.7) per decade0.9 F (0.6 to 1.3) per decade1951 to 198030Rise

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

1951 to 1985
Yearly extremes at Udorn Ab (USAF): the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.9 C (111.0 F)196040.2 C (104.4 F)35
Coldest night (TNn)2.5 C (36.5 F)19558.5 C (47.3 F)30
Wettest day (Rx1day)247.0 mm (9.7 in)197498.9 mm (3.9 in)35
Wettest five days (Rx5day)323.9 mm (12.8 in)1974170.1 mm (6.7 in)35
Longest dry spell (CDD)97 days197959 days35

Hottest day (TXx)

Hottest day (TXx) at Udorn Ab (USAF) by year The hottest day of the year at Udorn Ab (USAF), 1951 to 1985. The record is 43.9 C (111.0 F) in 1960, marked on the chart; the median year is 40.2 C (104.4 F). 3638404244196019701980Record: 43.9 C (111.0 F) in 1960
The hottest day of the year at Udorn Ab (USAF), 1951 to 1985. The record is 43.9 C (111.0 F) in 1960, marked on the chart; the median year is 40.2 C (104.4 F).
Hottest day (TXx) at Udorn Ab (USAF) by year
YearHottest day (TXx)
195140.7 C (105.3 F)
195241.1 C (106.0 F)
195341.3 C (106.3 F)
195443.0 C (109.4 F)
195542.5 C (108.5 F)
195640.2 C (104.4 F)
195742.4 C (108.3 F)
195843.8 C (110.8 F)
195941.5 C (106.7 F)
196043.9 C (111.0 F)
196141.0 C (105.8 F)
196241.6 C (106.9 F)
196340.9 C (105.6 F)
196438.3 C (100.9 F)
196538.4 C (101.1 F)
196639.0 C (102.2 F)
196740.0 C (104.0 F)
196838.3 C (100.9 F)
196939.1 C (102.4 F)
197039.2 C (102.6 F)
197138.3 C (100.9 F)
197238.7 C (101.7 F)
197340.8 C (105.4 F)
197437.7 C (99.9 F)
197540.5 C (104.9 F)
197639.1 C (102.4 F)
197739.6 C (103.3 F)
197838.8 C (101.8 F)
197940.2 C (104.4 F)
198040.2 C (104.4 F)
198139.5 C (103.1 F)
198239.4 C (102.9 F)
198341.8 C (107.2 F)
198440.4 C (104.7 F)
198540.9 C (105.6 F)

Coldest night (TNn)

Coldest night (TNn) at Udorn Ab (USAF) by year The coldest night of the year at Udorn Ab (USAF), 1951 to 1985. The record is 2.5 C (36.5 F) in 1955, marked on the chart; the median year is 8.5 C (47.3 F). 051015196019701980Record: 2.5 C (36.5 F) in 1955
The coldest night of the year at Udorn Ab (USAF), 1951 to 1985. The record is 2.5 C (36.5 F) in 1955, marked on the chart; the median year is 8.5 C (47.3 F).
Coldest night (TNn) at Udorn Ab (USAF) by year
YearColdest night (TNn)
19518.8 C (47.8 F)
19525.7 C (42.3 F)
19539.2 C (48.6 F)
19546.0 C (42.8 F)
19552.5 C (36.5 F)
19567.4 C (45.3 F)
195710.4 C (50.7 F)
19589.6 C (49.3 F)
19599.7 C (49.5 F)
19603.9 C (39.0 F)
19615.2 C (41.4 F)
19626.3 C (43.3 F)
19634.9 C (40.8 F)
19647.8 C (46.0 F)
19658.7 C (47.7 F)
196610.5 C (50.9 F)
19676.5 C (43.7 F)
19689.5 C (49.1 F)
196910.5 C (50.9 F)
197013.5 C (56.3 F)
19718.3 C (46.9 F)
197210.8 C (51.4 F)
19736.3 C (43.3 F)
19744.5 C (40.1 F)
19756.2 C (43.2 F)
19766.0 C (42.8 F)
197711.7 C (53.1 F)
197811.7 C (53.1 F)
197912.0 C (53.6 F)
198012.9 C (55.2 F)
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Udorn Ab (USAF) by year The wettest day of the year at Udorn Ab (USAF), 1951 to 1985. The record is 247.0 mm (9.7 in) in 1974, marked on the chart; the median year is 98.9 mm (3.9 in). 50100150200250196019701980Record: 247.0 mm (9.7 in) in 1974
The wettest day of the year at Udorn Ab (USAF), 1951 to 1985. The record is 247.0 mm (9.7 in) in 1974, marked on the chart; the median year is 98.9 mm (3.9 in).
Wettest day (Rx1day) at Udorn Ab (USAF) by year
YearWettest day (Rx1day)
195169.3 mm (2.7 in)
1952155.0 mm (6.1 in)
1953111.2 mm (4.4 in)
195479.1 mm (3.1 in)
195585.5 mm (3.4 in)
195676.1 mm (3.0 in)
195771.4 mm (2.8 in)
195883.5 mm (3.3 in)
1959105.6 mm (4.2 in)
196098.9 mm (3.9 in)
1961122.8 mm (4.8 in)
196296.2 mm (3.8 in)
196382.0 mm (3.2 in)
1964125.1 mm (4.9 in)
1965103.4 mm (4.1 in)
196675.6 mm (3.0 in)
1967153.6 mm (6.0 in)
196889.2 mm (3.5 in)
196983.2 mm (3.3 in)
1970120.9 mm (4.8 in)
1971106.3 mm (4.2 in)
197284.8 mm (3.3 in)
1973143.3 mm (5.6 in)
1974247.0 mm (9.7 in)
1975102.2 mm (4.0 in)
1976116.6 mm (4.6 in)
1977112.4 mm (4.4 in)
1978166.2 mm (6.5 in)
197978.2 mm (3.1 in)
1980146.0 mm (5.7 in)
198162.1 mm (2.4 in)
198264.1 mm (2.5 in)
1983121.3 mm (4.8 in)
198463.5 mm (2.5 in)
198598.7 mm (3.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Udorn Ab (USAF) by year The wettest five days of the year at Udorn Ab (USAF), 1951 to 1985. The record is 323.9 mm (12.8 in) in 1974, marked on the chart; the median year is 170.1 mm (6.7 in). 0100200300400196019701980Record: 323.9 mm (12.8 in) in 1974
The wettest five days of the year at Udorn Ab (USAF), 1951 to 1985. The record is 323.9 mm (12.8 in) in 1974, marked on the chart; the median year is 170.1 mm (6.7 in).
Wettest five days (Rx5day) at Udorn Ab (USAF) by year
YearWettest five days (Rx5day)
1951177.3 mm (7.0 in)
1952196.8 mm (7.7 in)
1953151.4 mm (6.0 in)
1954140.2 mm (5.5 in)
1955201.8 mm (7.9 in)
1956143.8 mm (5.7 in)
1957196.9 mm (7.8 in)
1958156.3 mm (6.2 in)
1959230.2 mm (9.1 in)
1960229.2 mm (9.0 in)
1961173.9 mm (6.8 in)
1962129.6 mm (5.1 in)
1963111.5 mm (4.4 in)
1964155.8 mm (6.1 in)
1965225.5 mm (8.9 in)
1966171.3 mm (6.7 in)
1967237.8 mm (9.4 in)
1968160.9 mm (6.3 in)
1969191.2 mm (7.5 in)
1970265.0 mm (10.4 in)
1971169.7 mm (6.7 in)
197284.8 mm (3.3 in)
1973168.1 mm (6.6 in)
1974323.9 mm (12.8 in)
1975164.3 mm (6.5 in)
1976170.1 mm (6.7 in)
1977142.6 mm (5.6 in)
1978213.6 mm (8.4 in)
1979156.1 mm (6.1 in)
1980241.2 mm (9.5 in)
1981182.1 mm (7.2 in)
1982122.1 mm (4.8 in)
1983217.5 mm (8.6 in)
1984116.6 mm (4.6 in)
1985104.3 mm (4.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Udorn Ab (USAF) by year The longest dry spell of the year at Udorn Ab (USAF), 1951 to 1985. The record is 97 days in 1979, marked on the chart; the median year is 59 days. 20406080100196019701980Record: 97 days in 1979
The longest dry spell of the year at Udorn Ab (USAF), 1951 to 1985. The record is 97 days in 1979, marked on the chart; the median year is 59 days.
Longest dry spell (CDD) at Udorn Ab (USAF) by year
YearLongest dry spell (CDD)
195147 days
195262 days
195343 days
195450 days
195577 days
195678 days
195763 days
195875 days
195980 days
196042 days
196171 days
196254 days
196346 days
196456 days
196582 days
196666 days
196755 days
196884 days
196959 days
197079 days
197153 days
197236 days
197379 days
197451 days
197546 days
197660 days
197774 days
197855 days
197997 days
198063 days
198155 days
198247 days
198361 days
198452 days
198548 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

35 years, 1951 to 1985

A day with at least 97.1 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 243.2 mm (9.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Udorn Ab (USAF): the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years97.1 mm (3.8 in)
5 years128.1 mm (5.0 in)
10 years151.6 mm (6.0 in)
25 years185.0 mm (7.3 in)
50 years212.8 mm (8.4 in)Longer than the 35 years of record
100 years243.2 mm (9.6 in)Longer than the 35 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, 35 years of values from 1951 to 1985.

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: 247.0 mm (9.7 in) in 1974; 166.2 mm (6.5 in) in 1978; 155.0 mm (6.1 in) in 1952.

Download the Data

  • Data for Udorn Ab (USAF) standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Udorn Ab (USAF) 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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