Built 2026-10-15 (15 October 2026)

Ricardo Weather Records (USC00417580)

Record envelope, standing records and threshold days for Ricardo (USC00417580), Texas, United States, with 67 years of record.

Key Facts for Ricardo

  • Ricardo (USC00417580) is a weather station in Texas, United States at 27.42 latitude and -97.82 longitude, 18 m (59 ft) above sea level.
  • The station reports from 1909 to 1975, 67 years of record.
  • 1,464 records set at Ricardo still stand.
  • Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Ricardo set a daily record precipitation of 19.1 mm (0.8 in) on 15 October 1974.

About the Station

  • Location: Texas, United States, 27.42 latitude, -97.82 longitude.
  • Elevation: 18 m (59 ft).
  • Period of record: 1909 to 1975, 67 years.
  • Eligible elements: prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Ricardo, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ricardo. 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 Ricardo. 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 Ricardo, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan34.4 C (93.9 F)-10.6 C (12.9 F)n/an/a
Feb36.1 C (97.0 F)-7.8 C (18.0 F)n/an/a
Mar40.0 C (104.0 F)-6.1 C (21.0 F)n/an/a
Apr41.1 C (106.0 F)-0.6 C (30.9 F)n/an/a
May42.2 C (108.0 F)5.0 C (41.0 F)n/an/a
Jun40.6 C (105.1 F)12.2 C (54.0 F)n/an/a
Jul42.2 C (108.0 F)13.9 C (57.0 F)n/an/a
Aug41.7 C (107.1 F)16.7 C (62.1 F)n/an/a
Sep41.1 C (106.0 F)6.1 C (43.0 F)n/an/a
Oct38.3 C (100.9 F)-1.1 C (30.0 F)n/an/a
Nov35.0 C (95.0 F)-3.9 C (25.0 F)n/an/a
Dec36.1 C (97.0 F)-8.9 C (16.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ricardo by the year they were set 1,464 records at Ricardo still stand. 1927 holds the most, with 100. 02550751001909: 561910: 901911: 901912: 381913: 701914: 921915: 771916: 881917: 831918: 691919: 691920: 721921: 741922: 631923: 521924: 701925: 701926: 561927: 1001928: 851909191119131915191719191921192319251927
1,464 records at Ricardo still stand. 1927 holds the most, with 100.
Standing records at Ricardo by the year they were set
Year setStanding records
190956
191090
191190
191238
191370
191492
191577
191688
191783
191869
191969
192072
192174
192263
192352
192470
192570
192656
1927100
192885

All-Time Record Progression

1 new records
When Ricardo set new all-time records 1 all-time records were set at Ricardo between 10 January 1967 and 10 January 1967. Each dot is a new record. Record daily snowfall10 January 1967: Record daily snowfall 3.6 cm (1.4 in)
1 all-time records were set at Ricardo between 10 January 1967 and 10 January 1967. Each dot is a new record.
When Ricardo set new all-time records
DateKindDetail
1967-01-10Record daily snowfallRecord daily snowfall 3.6 cm (1.4 in)

Wettest Day of Each Month

Jun: 287.0 mm (11.3 in)
Record daily precipitation for each month at Ricardo The wettest day on record for each calendar month at Ricardo. The most was 287.0 mm (11.3 in) on 21 June 1924. 0100200300 Jan: 142.2 mm (5.6 in), 5 January 1958 Jan Feb: 103.9 mm (4.1 in), 23 February 1941 Feb Mar: 91.9 mm (3.6 in), 15 March 1931 Mar Apr: 189.0 mm (7.4 in), 30 April 1921 Apr May: 222.3 mm (8.8 in), 1 May 1922 May Jun: 287.0 mm (11.3 in), 21 June 1924 Jun Jul: 146.1 mm (5.8 in), 25 July 1934 Jul Aug: 168.4 mm (6.6 in), 27 August 1938 Aug Sep: 224.8 mm (8.9 in), 14 September 1919 Sep Oct: 188.7 mm (7.4 in), 12 October 1973 Oct Nov: 69.9 mm (2.8 in), 12 November 1914 Nov Dec: 108.0 mm (4.3 in), 15 December 1929 Dec
The wettest day on record for each calendar month at Ricardo. The most was 287.0 mm (11.3 in) on 21 June 1924.
Record daily precipitation for each month at Ricardo
MonthRecord daily precipitation (mm)Date
Jan142.2 mm (5.6 in)5 January 1958
Feb103.9 mm (4.1 in)23 February 1941
Mar91.9 mm (3.6 in)15 March 1931
Apr189.0 mm (7.4 in)30 April 1921
May222.3 mm (8.8 in)1 May 1922
Jun287.0 mm (11.3 in)21 June 1924
Jul146.1 mm (5.8 in)25 July 1934
Aug168.4 mm (6.6 in)27 August 1938
Sep224.8 mm (8.9 in)14 September 1919
Oct188.7 mm (7.4 in)12 October 1973
Nov69.9 mm (2.8 in)12 November 1914
Dec108.0 mm (4.3 in)15 December 1929

Period of Record Coverage

1909 to 1928
Days with data per year at Ricardo 20 years of record at Ricardo, 1909 to 1928. 7 years have data for under 90 percent of days and are left out of rankings: 1909, 1911, 1912, 1913, 1922, 1927, 1928. 1909: 214 of 365 days1910: 351 of 365 days1911: 264 of 365 days1912: 151 of 366 days1913: 304 of 365 days1914: 358 of 365 days1915: 353 of 365 days1916: 355 of 366 days1917: 355 of 365 days1918: 349 of 365 days1919: 350 of 365 days1920: 349 of 366 days1921: 354 of 365 days1922: 324 of 365 days1923: 350 of 365 days1924: 358 of 366 days1925: 358 of 365 days1926: 338 of 365 days1927: 268 of 365 days1928: 291 of 366 days1910191519201925
20 years of record at Ricardo, 1909 to 1928. 7 years have data for under 90 percent of days and are left out of rankings: 1909, 1911, 1912, 1913, 1922, 1927, 1928.
Days with data per year at Ricardo
YearDays with dataShare of yearComplete
190921459%No
191035196%Yes
191126472%No
191215141%No
191330483%No
191435898%Yes
191535397%Yes
191635597%Yes
191735597%Yes
191834996%Yes
191935096%Yes
192034995%Yes
192135497%Yes
192232489%No
192335096%Yes
192435898%Yes
192535898%Yes
192633893%Yes
192726873%No
192829180%No

Latest Records

20
Latest records at Ricardo
DateStationRecordValueBeat old record byOld record stoodSignificance
15 October 1974Ricardo, USdaily rain19.1 mm (0.8 in)6.9 mm (0.27 in)32 years18 of 100 (Routine)
10 May 1974Ricardo, USdaily rain34.0 mm (1.3 in)7.8 mm (0.31 in)27 years17 of 100 (Routine)
25 January 1974Ricardo, USdaily rain17.8 mm (0.7 in)5.9 mm (0.23 in)12 years12 of 100 (Routine)
13 October 1973Ricardo, USdaily rain21.6 mm (0.9 in)2.3 mm (0.09 in)50 years20 of 100 (Routine)
12 October 1973Ricardo, USmonthly rain188.7 mm (7.4 in)63.0 mm (2.5 in)42 years60 of 100 (Major)
28 September 1973Ricardo, USdaily rain36.3 mm (1.4 in)12.2 mm (0.5 in)62 years28 of 100 (Routine)
26 June 1973Ricardo, USdaily rain30.5 mm (1.2 in)10.2 mm (0.4 in)4 years10 of 100 (Routine)
24 June 1973Ricardo, USdaily rain136.7 mm (5.4 in)110.8 mm (4.4 in)4 years47 of 100 (Notable)
14 June 1973Ricardo, USdaily rain81.3 mm (3.2 in)43.2 mm (1.7 in)54 years37 of 100 (Notable)
13 June 1973Ricardo, USdaily rain9.9 mm (0.39 in)2.5 mm (0.10 in)52 years20 of 100 (Routine)
24 November 1972Ricardo, USdaily rain18.8 mm (0.7 in)9.4 mm (0.37 in)3 years13 of 100 (Routine)
23 July 1972Ricardo, USdaily rain21.3 mm (0.8 in)8.6 mm (0.34 in)53 years20 of 100 (Routine)
22 July 1972Ricardo, USdaily rain33.5 mm (1.3 in)1.7 mm (0.07 in)53 years21 of 100 (Routine)
29 February 1972Ricardo, USdaily rain58.7 mm (2.3 in)55.9 mm (2.2 in)12 years49 of 100 (Notable)
1 February 1972Ricardo, USdaily rain55.1 mm (2.2 in)51.8 mm (2.0 in)12 years49 of 100 (Notable)
13 December 1971Ricardo, USdaily rain55.4 mm (2.2 in)26.7 mm (1.1 in)34 years33 of 100 (Routine)
11 September 1971Ricardo, USdaily rain62.0 mm (2.4 in)20.1 mm (0.8 in)41 years25 of 100 (Routine)
7 August 1971Ricardo, USdaily rain65.5 mm (2.6 in)51.0 mm (2.0 in)42 years40 of 100 (Notable)
3 August 1971Ricardo, USdaily rain80.8 mm (3.2 in)80.8 mm (3.2 in)61 years58 of 100 (Notable)
5 April 1971Ricardo, USdaily rain22.9 mm (0.9 in)10.7 mm (0.4 in)8 years12 of 100 (Routine)

Climate Trend

11 complete years, 1914 to 1926
Annual mean temperature at Ricardo as warming stripes, 1914 to 1926 One stripe for each of 11 complete years at Ricardo, 1914 to 1926. Blue stripes are years cooler than the station's own mean of 21.4 C (70.5 F); red stripes are warmer. The coolest year was 1920, at 20.5 C (68.9 F), and the warmest was 1916, at 22.0 C (71.5 F). The strongest colour marks a difference of 0.9 C (1.6 F). 1914: 21.3 C, 0.0 C from the station mean1915: 21.5 C, +0.1 C from the station mean1916: 22.0 C, +0.6 C from the station mean1917: 21.2 C, -0.2 C from the station mean1918: 21.5 C, +0.2 C from the station mean1919: 20.8 C, -0.5 C from the station mean1920: 20.5 C, -0.9 C from the station mean1921: 21.8 C, +0.4 C from the station mean1924: 20.9 C, -0.5 C from the station mean1925: 21.7 C, +0.3 C from the station mean1926: 21.8 C, +0.4 C from the station mean1914191619181920192219241926
One stripe for each of 11 complete years at Ricardo, 1914 to 1926. Blue stripes are years cooler than the station's own mean of 21.4 C (70.5 F); red stripes are warmer. The coolest year was 1920, at 20.5 C (68.9 F), and the warmest was 1916, at 22.0 C (71.5 F). The strongest colour marks a difference of 0.9 C (1.6 F).
Annual mean temperature at Ricardo as warming stripes, 1914 to 1926
YearAnnual mean temperatureDifference from the station mean
191421.3 C-0.05 C
191521.5 C+0.13 C
191622.0 C+0.59 C
191721.2 C-0.16 C
191821.5 C+0.16 C
191920.8 C-0.54 C
192020.5 C-0.86 C
192121.8 C+0.44 C
192420.9 C-0.46 C
192521.7 C+0.32 C
192621.8 C+0.41 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

1909 to 1975
Yearly extremes at Ricardo: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)192840.3 C (104.5 F)20
Coldest night (TNn)-10.6 C (12.9 F)1918-5.3 C (22.5 F)20
Wettest day (Rx1day)287.0 mm (11.3 in)192480.8 mm (3.2 in)67
Wettest five days (Rx5day)329.7 mm (13.0 in)1922118.0 mm (4.6 in)67
Longest dry spell (CDD)111 days195049 days67

Hottest day (TXx)

Hottest day (TXx) at Ricardo by year The hottest day of the year at Ricardo, 1909 to 1975. The record is 42.2 C (108.0 F) in 1928, marked on the chart; the median year is 40.3 C (104.5 F). 3638404244192019401960Record: 42.2 C (108.0 F) in 1928
The hottest day of the year at Ricardo, 1909 to 1975. The record is 42.2 C (108.0 F) in 1928, marked on the chart; the median year is 40.3 C (104.5 F).
Hottest day (TXx) at Ricardo by year
YearHottest day (TXx)
190941.7 C (107.1 F)
191040.6 C (105.1 F)
191138.9 C (102.0 F)
191237.2 C (99.0 F)
191340.0 C (104.0 F)
191441.1 C (106.0 F)
191541.1 C (106.0 F)
191640.6 C (105.1 F)
191740.0 C (104.0 F)
191840.6 C (105.1 F)
191936.1 C (97.0 F)
192037.8 C (100.0 F)
192137.8 C (100.0 F)
192236.7 C (98.1 F)
192338.9 C (102.0 F)
192438.9 C (102.0 F)
192541.1 C (106.0 F)
192641.1 C (106.0 F)
192741.7 C (107.1 F)
192842.2 C (108.0 F)
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a

Coldest night (TNn)

Coldest night (TNn) at Ricardo by year The coldest night of the year at Ricardo, 1909 to 1975. The record is -10.6 C (12.9 F) in 1918, marked on the chart; the median year is -5.3 C (22.5 F). -12.5-10-7.5-5-2.50192019401960Record: -10.6 C (12.9 F) in 1918
The coldest night of the year at Ricardo, 1909 to 1975. The record is -10.6 C (12.9 F) in 1918, marked on the chart; the median year is -5.3 C (22.5 F).
Coldest night (TNn) at Ricardo by year
YearColdest night (TNn)
1909-1.1 C (30.0 F)
1910-5.6 C (21.9 F)
1911-10.0 C (14.0 F)
1912-7.8 C (18.0 F)
1913-1.7 C (28.9 F)
1914-5.0 C (23.0 F)
1915-3.9 C (25.0 F)
1916-6.7 C (19.9 F)
1917-8.9 C (16.0 F)
1918-10.6 C (12.9 F)
1919-4.4 C (24.1 F)
1920-2.8 C (27.0 F)
1921-4.4 C (24.1 F)
1922-4.4 C (24.1 F)
1923-3.9 C (25.0 F)
1924-5.6 C (21.9 F)
1925-5.6 C (21.9 F)
1926-3.9 C (25.0 F)
1927-5.6 C (21.9 F)
1928-6.7 C (19.9 F)
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a

Wettest day (Rx1day)

Wettest day (Rx1day) at Ricardo by year The wettest day of the year at Ricardo, 1909 to 1975. The record is 287.0 mm (11.3 in) in 1924, marked on the chart; the median year is 80.8 mm (3.2 in). 0100200300192019401960Record: 287.0 mm (11.3 in) in 1924
The wettest day of the year at Ricardo, 1909 to 1975. The record is 287.0 mm (11.3 in) in 1924, marked on the chart; the median year is 80.8 mm (3.2 in).
Wettest day (Rx1day) at Ricardo by year
YearWettest day (Rx1day)
1909145.0 mm (5.7 in)
191031.8 mm (1.3 in)
191155.4 mm (2.2 in)
191248.3 mm (1.9 in)
191380.0 mm (3.1 in)
191474.9 mm (2.9 in)
191557.2 mm (2.3 in)
1916101.6 mm (4.0 in)
1917101.6 mm (4.0 in)
191839.4 mm (1.6 in)
1919224.8 mm (8.9 in)
192070.6 mm (2.8 in)
1921189.0 mm (7.4 in)
1922222.3 mm (8.8 in)
1923114.8 mm (4.5 in)
1924287.0 mm (11.3 in)
1925116.8 mm (4.6 in)
1926113.0 mm (4.4 in)
192732.8 mm (1.3 in)
192866.0 mm (2.6 in)
1929130.0 mm (5.1 in)
1930125.7 mm (4.9 in)
193195.8 mm (3.8 in)
1932116.8 mm (4.6 in)
193377.5 mm (3.1 in)
1934146.1 mm (5.8 in)
193587.6 mm (3.4 in)
193695.3 mm (3.8 in)
193791.4 mm (3.6 in)
1938168.4 mm (6.6 in)
193944.5 mm (1.8 in)
194069.9 mm (2.8 in)
1941142.2 mm (5.6 in)
1942112.5 mm (4.4 in)
194385.9 mm (3.4 in)
194481.3 mm (3.2 in)
194578.2 mm (3.1 in)
1946114.3 mm (4.5 in)
194796.8 mm (3.8 in)
194851.3 mm (2.0 in)
194975.9 mm (3.0 in)
195071.9 mm (2.8 in)
1951102.9 mm (4.1 in)
195249.8 mm (2.0 in)
195396.8 mm (3.8 in)
195438.9 mm (1.5 in)
195535.6 mm (1.4 in)
195672.9 mm (2.9 in)
195777.0 mm (3.0 in)
1958142.2 mm (5.6 in)
195947.0 mm (1.9 in)
196098.3 mm (3.9 in)
196135.1 mm (1.4 in)
196250.8 mm (2.0 in)
196333.3 mm (1.3 in)
196443.2 mm (1.7 in)
196556.6 mm (2.2 in)
196681.3 mm (3.2 in)
1967203.2 mm (8.0 in)
196850.8 mm (2.0 in)
196940.1 mm (1.6 in)
1970165.1 mm (6.5 in)
197180.8 mm (3.2 in)
197258.7 mm (2.3 in)
1973188.7 mm (7.4 in)
197459.7 mm (2.4 in)
197541.1 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ricardo by year The wettest five days of the year at Ricardo, 1909 to 1975. The record is 329.7 mm (13.0 in) in 1922, marked on the chart; the median year is 118.0 mm (4.6 in). 0100200300400192019401960Record: 329.7 mm (13.0 in) in 1922
The wettest five days of the year at Ricardo, 1909 to 1975. The record is 329.7 mm (13.0 in) in 1922, marked on the chart; the median year is 118.0 mm (4.6 in).
Wettest five days (Rx5day) at Ricardo by year
YearWettest five days (Rx5day)
1909171.2 mm (6.7 in)
191060.7 mm (2.4 in)
191169.6 mm (2.7 in)
1912104.9 mm (4.1 in)
1913135.2 mm (5.3 in)
1914138.4 mm (5.4 in)
191589.2 mm (3.5 in)
1916105.7 mm (4.2 in)
1917151.4 mm (6.0 in)
191861.2 mm (2.4 in)
1919267.7 mm (10.5 in)
192091.2 mm (3.6 in)
1921189.0 mm (7.4 in)
1922329.7 mm (13.0 in)
1923163.5 mm (6.4 in)
1924314.5 mm (12.4 in)
1925149.8 mm (5.9 in)
1926160.8 mm (6.3 in)
192757.7 mm (2.3 in)
1928132.0 mm (5.2 in)
1929136.4 mm (5.4 in)
1930125.7 mm (4.9 in)
1931155.2 mm (6.1 in)
1932158.8 mm (6.3 in)
1933109.6 mm (4.3 in)
1934146.1 mm (5.8 in)
1935162.5 mm (6.4 in)
193695.3 mm (3.8 in)
193795.5 mm (3.8 in)
1938168.4 mm (6.6 in)
193950.0 mm (2.0 in)
194093.0 mm (3.7 in)
1941153.6 mm (6.0 in)
1942200.4 mm (7.9 in)
1943225.4 mm (8.9 in)
1944129.6 mm (5.1 in)
1945102.3 mm (4.0 in)
1946205.7 mm (8.1 in)
194796.8 mm (3.8 in)
1948118.0 mm (4.6 in)
1949102.3 mm (4.0 in)
1950108.5 mm (4.3 in)
1951222.3 mm (8.8 in)
195266.6 mm (2.6 in)
1953201.1 mm (7.9 in)
195448.6 mm (1.9 in)
195551.6 mm (2.0 in)
195672.9 mm (2.9 in)
195787.9 mm (3.5 in)
1958212.6 mm (8.4 in)
195947.0 mm (1.9 in)
1960126.5 mm (5.0 in)
1961103.9 mm (4.1 in)
196263.5 mm (2.5 in)
196359.5 mm (2.3 in)
196453.4 mm (2.1 in)
196567.3 mm (2.6 in)
1966169.4 mm (6.7 in)
1967312.1 mm (12.3 in)
196864.0 mm (2.5 in)
196991.4 mm (3.6 in)
1970189.7 mm (7.5 in)
1971177.3 mm (7.0 in)
197268.6 mm (2.7 in)
1973228.6 mm (9.0 in)
1974116.4 mm (4.6 in)
197541.1 mm (1.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ricardo by year The longest dry spell of the year at Ricardo, 1909 to 1975. The record is 111 days in 1950, marked on the chart; the median year is 49 days. 050100150192019401960Record: 111 days in 1950
The longest dry spell of the year at Ricardo, 1909 to 1975. The record is 111 days in 1950, marked on the chart; the median year is 49 days.
Longest dry spell (CDD) at Ricardo by year
YearLongest dry spell (CDD)
190933 days
191041 days
191131 days
191237 days
191352 days
191441 days
191534 days
191693 days
191773 days
191840 days
191933 days
192036 days
192131 days
192241 days
192339 days
192470 days
192569 days
192636 days
192759 days
192828 days
192953 days
193070 days
193132 days
193249 days
193349 days
193487 days
193550 days
193670 days
193757 days
193845 days
193950 days
194043 days
194135 days
194239 days
194363 days
194453 days
194583 days
194664 days
194748 days
194836 days
194928 days
1950111 days
1951101 days
195252 days
195350 days
195469 days
195546 days
195633 days
195758 days
195846 days
195941 days
196042 days
196143 days
196254 days
196364 days
196450 days
196545 days
196657 days
196733 days
196848 days
196984 days
197059 days
197193 days
197257 days
197331 days
197457 days
197510 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

55 years, 1910 to 1974

A day with at least 84.3 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 296.5 mm (11.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Ricardo: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years84.3 mm (3.3 in)
5 years131.6 mm (5.2 in)
10 years166.4 mm (6.6 in)
25 years214.8 mm (8.5 in)
50 years254.2 mm (10.0 in)
100 years296.5 mm (11.7 in)Longer than the 55 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, 55 years of values from 1910 to 1974.

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: 287.0 mm (11.3 in) in 1924; 224.8 mm (8.9 in) in 1919; 222.3 mm (8.8 in) in 1922.

Download the Data

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