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San German 4 W Weather Records (RQC00668757)

Record envelope, standing records and threshold days for San German 4 W (RQC00668757), PR, Puerto Rico [United States], with 70 years of record.

Key Facts for San German 4 W

  • San German 4 W (RQC00668757) is a weather station in PR, Puerto Rico [United States] at 18.08 latitude and -67.10 longitude, 27 m (89 ft) above sea level.
  • The station reports from 1904 to 1973, 70 years of record.
  • 1,464 records set at San German 4 W still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • San German 4 W set a daily record precipitation of 66.3 mm (2.6 in) on 11 June 1973.

About the Station

  • Location: PR, Puerto Rico [United States], 18.08 latitude, -67.10 longitude.
  • Elevation: 27 m (89 ft).
  • Period of record: 1904 to 1973, 70 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 San German 4 W, with 2026 drawn through them The band shows the record high and record low for each calendar day at San German 4 W. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at San German 4 W. 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 San German 4 W, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan34.4 C (93.9 F)9.4 C (48.9 F)n/an/a
Feb36.7 C (98.1 F)11.7 C (53.1 F)n/an/a
Mar36.1 C (97.0 F)10.0 C (50.0 F)n/an/a
Apr35.6 C (96.1 F)9.4 C (48.9 F)n/an/a
May36.1 C (97.0 F)12.8 C (55.0 F)n/an/a
Jun36.7 C (98.1 F)15.0 C (59.0 F)n/an/a
Jul36.7 C (98.1 F)14.4 C (57.9 F)n/an/a
Aug36.7 C (98.1 F)15.0 C (59.0 F)n/an/a
Sep36.7 C (98.1 F)14.4 C (57.9 F)n/an/a
Oct37.8 C (100.0 F)15.6 C (60.1 F)n/an/a
Nov36.1 C (97.0 F)13.9 C (57.0 F)n/an/a
Dec35.6 C (96.1 F)11.7 C (53.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at San German 4 W by the year they were set 1,464 records at San German 4 W still stand. 1907 holds the most, with 62. 0204060801904: 21905: 371906: 151907: 621908: 271909: 101910: 151911: 111912: 201914: 551915: 551920: 221921: 241922: 591923: 281924: 401925: 461926: 231927: 311928: 321929: 141931: 461932: 371933: 371934: 231935: 261936: 541937: 101939: 111940: 221941: 281942: 291943: 121944: 201945: 231946: 371947: 61948: 131949: 311950: 581951: 151952: 171953: 111954: 111955: 151956: 151957: 231958: 251959: 181960: 61961: 201962: 61963: 151965: 11966: 521967: 221968: 71969: 161970: 61971: 11972: 41973: 7190419111923193119391946195319601968
1,464 records at San German 4 W still stand. 1907 holds the most, with 62.
Standing records at San German 4 W by the year they were set
Year setStanding records
19042
190537
190615
190762
190827
190910
191015
191111
191220
191455
191555
192022
192124
192259
192328
192440
192546
192623
192731
192832
192914
193146
193237
193337
193423
193526
193654
193710
193911
194022
194128
194229
194312
194420
194523
194637
19476
194813
194931
195058
195115
195217
195311
195411
195515
195615
195723
195825
195918
19606
196120
19626
196315
19651
196652
196722
19687
196916
19706
19711
19724
19737

All-Time Record Progression

1 new records
When San German 4 W set new all-time records 1 all-time records were set at San German 4 W between 27 November 1950 and 27 November 1950. Each dot is a new record. Record low maximum temperature27 November 1950: Record low maximum temperature 23.9 C (75.0 F)1950
1 all-time records were set at San German 4 W between 27 November 1950 and 27 November 1950. Each dot is a new record.
When San German 4 W set new all-time records
DateKindDetail
1950-11-27Record low maximum temperatureRecord low maximum temperature 23.9 C (75.0 F)

Wettest Day of Each Month

Oct: 355.6 mm (14.0 in)
Record daily precipitation for each month at San German 4 W The wettest day on record for each calendar month at San German 4 W. The most was 355.6 mm (14.0 in) on 31 October 1912. 0100200300400 Jan: 75.7 mm (3.0 in), 11 January 1958 Jan Feb: 82.0 mm (3.2 in), 4 February 1935 Feb Mar: 142.2 mm (5.6 in), 4 March 1933 Mar Apr: 170.2 mm (6.7 in), 27 April 1954 Apr May: 251.5 mm (9.9 in), 7 May 1928 May Jun: 100.1 mm (3.9 in), 6 June 1953 Jun Jul: 129.8 mm (5.1 in), 23 July 1926 Jul Aug: 155.7 mm (6.1 in), 2 August 1963 Aug Sep: 215.9 mm (8.5 in), 10 September 1921 Sep Oct: 355.6 mm (14.0 in), 31 October 1912 Oct Nov: 157.5 mm (6.2 in), 30 November 1950 Nov Dec: 91.4 mm (3.6 in), 3 December 1935 Dec
The wettest day on record for each calendar month at San German 4 W. The most was 355.6 mm (14.0 in) on 31 October 1912.
Record daily precipitation for each month at San German 4 W
MonthRecord daily precipitation (mm)Date
Jan75.7 mm (3.0 in)11 January 1958
Feb82.0 mm (3.2 in)4 February 1935
Mar142.2 mm (5.6 in)4 March 1933
Apr170.2 mm (6.7 in)27 April 1954
May251.5 mm (9.9 in)7 May 1928
Jun100.1 mm (3.9 in)6 June 1953
Jul129.8 mm (5.1 in)23 July 1926
Aug155.7 mm (6.1 in)2 August 1963
Sep215.9 mm (8.5 in)10 September 1921
Oct355.6 mm (14.0 in)31 October 1912
Nov157.5 mm (6.2 in)30 November 1950
Dec91.4 mm (3.6 in)3 December 1935

Period of Record Coverage

1904 to 1973
Days with data per year at San German 4 W 62 years of record at San German 4 W, 1904 to 1973. 22 years have data for under 90 percent of days and are left out of rankings: 1904, 1907, 1924, 1926, 1928, 1929, 1937, 1939 and others. 1904: 61 of 366 days1905: 365 of 365 days1906: 352 of 365 days1907: 322 of 365 days1908: 360 of 366 days1909: 365 of 365 days1910: 365 of 365 days1911: 365 of 365 days1912: 366 of 366 days1914: 355 of 365 days1915: 365 of 365 days1920: 361 of 366 days1921: 349 of 365 days1922: 354 of 365 days1923: 365 of 365 days1924: 177 of 366 days1925: 349 of 365 days1926: 320 of 365 days1927: 333 of 365 days1928: 290 of 366 days1929: 316 of 365 days1931: 359 of 365 days1932: 365 of 366 days1933: 365 of 365 days1934: 363 of 365 days1935: 354 of 365 days1936: 347 of 366 days1937: 291 of 365 days1939: 325 of 365 days1940: 366 of 366 days1941: 364 of 365 days1942: 364 of 365 days1943: 362 of 365 days1944: 366 of 366 days1945: 342 of 365 days1946: 357 of 365 days1947: 330 of 365 days1948: 303 of 366 days1949: 354 of 365 days1950: 363 of 365 days1951: 273 of 365 days1952: 350 of 366 days1953: 327 of 365 days1954: 347 of 365 days1955: 355 of 365 days1956: 364 of 366 days1957: 365 of 365 days1958: 270 of 365 days1959: 295 of 365 days1960: 366 of 366 days1961: 273 of 365 days1962: 92 of 365 days1963: 236 of 365 days1965: 55 of 365 days1966: 329 of 365 days1967: 363 of 365 days1968: 244 of 366 days1969: 241 of 365 days1970: 261 of 365 days1971: 275 of 365 days1972: 366 of 366 days1973: 167 of 365 days191019201940195019601970
62 years of record at San German 4 W, 1904 to 1973. 22 years have data for under 90 percent of days and are left out of rankings: 1904, 1907, 1924, 1926, 1928, 1929, 1937, 1939 and others.
Days with data per year at San German 4 W
YearDays with dataShare of yearComplete
19046117%No
1905365100%Yes
190635296%Yes
190732288%No
190836098%Yes
1909365100%Yes
1910365100%Yes
1911365100%Yes
1912366100%Yes
191435597%Yes
1915365100%Yes
192036199%Yes
192134996%Yes
192235497%Yes
1923365100%Yes
192417748%No
192534996%Yes
192632088%No
192733391%Yes
192829079%No
192931687%No
193135998%Yes
1932365100%Yes
1933365100%Yes
193436399%Yes
193535497%Yes
193634795%Yes
193729180%No
193932589%No
1940366100%Yes
1941364100%Yes
1942364100%Yes
194336299%Yes
1944366100%Yes
194534294%Yes
194635798%Yes
194733090%Yes
194830383%No
194935497%Yes
195036399%Yes
195127375%No
195235096%Yes
195332790%No
195434795%Yes
195535597%Yes
195636499%Yes
1957365100%Yes
195827074%No
195929581%No
1960366100%Yes
196127375%No
19629225%No
196323665%No
19655515%No
196632990%Yes
196736399%Yes
196824467%No
196924166%No
197026172%No
197127575%No
1972366100%Yes
197316746%No

Latest Records

20
Latest records at San German 4 W
DateStationRecordValueBeat old record byOld record stoodSignificance
11 June 1973San German 4 W, PRdaily rain66.3 mm (2.6 in)46.0 mm (1.8 in)24 years45 of 100 (Notable)
10 June 1973San German 4 W, PRdaily rain70.4 mm (2.8 in)33.8 mm (1.3 in)51 years45 of 100 (Notable)
29 May 1973San German 4 W, PRdaily high max (Tie)34.4 C (93.9 F)tie23 years3 of 100 (Routine)
28 May 1973San German 4 W, PRdaily high max35.0 C (95.0 F)0.6 C (1.1 F)36 years22 of 100 (Routine)
26 May 1973San German 4 W, PRdaily high max34.4 C (93.9 F)0.5 C (0.9 F)58 years27 of 100 (Routine)
25 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie42 years4 of 100 (Routine)
24 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie40 years4 of 100 (Routine)
22 May 1973San German 4 W, PRdaily high max34.4 C (93.9 F)0.5 C (0.9 F)24 years17 of 100 (Routine)
20 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie18 years3 of 100 (Routine)
19 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie58 years6 of 100 (Routine)
17 May 1973San German 4 W, PRdaily high max35.0 C (95.0 F)0.6 C (1.1 F)42 years23 of 100 (Routine)
13 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie4 years2 of 100 (Routine)
12 May 1973San German 4 W, PRdaily high max (Tie)34.4 C (93.9 F)tie20 years3 of 100 (Routine)
10 May 1973San German 4 W, PRdaily high max (Tie)34.4 C (93.9 F)tie39 years4 of 100 (Routine)
9 May 1973San German 4 W, PRdaily high max (Tie)34.4 C (93.9 F)tie42 years4 of 100 (Routine)
8 May 1973San German 4 W, PRdaily high max34.4 C (93.9 F)0.5 C (0.9 F)7 years12 of 100 (Routine)
4 May 1973San German 4 W, PRdaily high max (Tie)33.9 C (93.0 F)tie16 years2 of 100 (Routine)
2 May 1973San German 4 W, PRdaily high max33.9 C (93.0 F)0.6 C (1.1 F)44 years24 of 100 (Routine)
1 May 1973San German 4 W, PRdaily high max34.4 C (93.9 F)0.5 C (0.9 F)7 years12 of 100 (Routine)
21 April 1973San German 4 W, PRdaily rain75.4 mm (3.0 in)43.6 mm (1.7 in)23 years36 of 100 (Notable)

Climate Trend

34 complete years, 1905 to 1972
Annual mean temperature at San German 4 W as warming stripes, 1905 to 1972 One stripe for each of 34 complete years at San German 4 W, 1905 to 1972. Blue stripes are years cooler than the station's own mean of 25.2 C (77.4 F); red stripes are warmer. The coolest year was 1967, at 24.4 C (75.8 F), and the warmest was 1931, at 26.2 C (79.1 F). The strongest colour marks a difference of 1.0 C (1.8 F). 1905: 25.2 C, -0.1 C from the station mean1908: 24.6 C, -0.6 C from the station mean1909: 24.6 C, -0.7 C from the station mean1910: 24.7 C, -0.5 C from the station mean1911: 24.8 C, -0.5 C from the station mean1912: 24.7 C, -0.5 C from the station mean1914: 25.1 C, -0.1 C from the station mean1915: 25.4 C, +0.2 C from the station mean1920: 25.5 C, +0.3 C from the station mean1921: 25.3 C, +0.1 C from the station mean1922: 25.6 C, +0.4 C from the station mean1923: 25.3 C, +0.1 C from the station mean1931: 26.2 C, +0.9 C from the station mean1932: 26.0 C, +0.8 C from the station mean1933: 25.7 C, +0.4 C from the station mean1934: 25.4 C, +0.1 C from the station mean1935: 25.1 C, -0.1 C from the station mean1936: 25.5 C, +0.3 C from the station mean1940: 25.7 C, +0.5 C from the station mean1941: 25.8 C, +0.6 C from the station mean1942: 26.0 C, +0.7 C from the station mean1943: 25.2 C, -0.1 C from the station mean1944: 25.3 C, +0.1 C from the station mean1945: 24.6 C, -0.6 C from the station mean1946: 24.5 C, -0.8 C from the station mean1949: 24.4 C, -0.8 C from the station mean1952: 25.6 C, +0.4 C from the station mean1954: 24.9 C, -0.3 C from the station mean1955: 25.4 C, +0.2 C from the station mean1956: 25.2 C, 0.0 C from the station mean1957: 25.9 C, +0.6 C from the station mean1960: 25.3 C, +0.1 C from the station mean1967: 24.4 C, -0.9 C from the station mean1972: 24.9 C, -0.3 C from the station mean19051910192019301940195019601970
One stripe for each of 34 complete years at San German 4 W, 1905 to 1972. Blue stripes are years cooler than the station's own mean of 25.2 C (77.4 F); red stripes are warmer. The coolest year was 1967, at 24.4 C (75.8 F), and the warmest was 1931, at 26.2 C (79.1 F). The strongest colour marks a difference of 1.0 C (1.8 F).
Annual mean temperature at San German 4 W as warming stripes, 1905 to 1972
YearAnnual mean temperatureDifference from the station mean
190525.2 C-0.06 C
190824.6 C-0.58 C
190924.6 C-0.66 C
191024.7 C-0.54 C
191124.8 C-0.47 C
191224.7 C-0.50 C
191425.1 C-0.11 C
191525.4 C+0.17 C
192025.5 C+0.31 C
192125.3 C+0.08 C
192225.6 C+0.36 C
192325.3 C+0.05 C
193126.2 C+0.94 C
193226.0 C+0.79 C
193325.7 C+0.43 C
193425.4 C+0.14 C
193525.1 C-0.13 C
193625.5 C+0.30 C
194025.7 C+0.45 C
194125.8 C+0.62 C
194226.0 C+0.73 C
194325.2 C-0.06 C
194425.3 C+0.11 C
194524.6 C-0.59 C
194624.5 C-0.77 C
194924.4 C-0.84 C
195225.6 C+0.38 C
195424.9 C-0.31 C
195525.4 C+0.16 C
195625.2 C+0.00 C
195725.9 C+0.64 C
196025.3 C+0.07 C
196724.4 C-0.87 C
197224.9 C-0.32 C

The fitted trend in annual mean temperature here over 1905 to 1972 is 0.02 C (-0.08 to 0.11) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.03 F (-0.14 to 0.20) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at San German 4 W
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.02 C (-0.08 to 0.11) per decade0.03 F (-0.14 to 0.20) per decade1905 to 197234Not clearly different from zero
Mean daily maximum0.01 C (-0.10 to 0.12) per decade0.01 F (-0.19 to 0.21) per decade1905 to 197234Not clearly different from zero
Mean daily minimum0.02 C (-0.13 to 0.17) per decade0.04 F (-0.23 to 0.31) per decade1905 to 197234Not 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

1904 to 1973
Yearly extremes at San German 4 W: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)192935.0 C (95.0 F)62
Coldest night (TNn)9.4 C (48.9 F)190713.3 C (55.9 F)62
Wettest day (Rx1day)355.6 mm (14.0 in)191289.6 mm (3.5 in)62
Wettest five days (Rx5day)396.2 mm (15.6 in)1912158.0 mm (6.2 in)62
Longest dry spell (CDD)47 days196721 days62

Hottest day (TXx)

Hottest day (TXx) at San German 4 W by year The hottest day of the year at San German 4 W, 1904 to 1973. The record is 37.8 C (100.0 F) in 1929, marked on the chart; the median year is 35.0 C (95.0 F). 32343638192019401960Record: 37.8 C (100.0 F) in 1929
The hottest day of the year at San German 4 W, 1904 to 1973. The record is 37.8 C (100.0 F) in 1929, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at San German 4 W by year
YearHottest day (TXx)
190432.2 C (90.0 F)
190535.6 C (96.1 F)
190635.0 C (95.0 F)
190735.0 C (95.0 F)
190833.9 C (93.0 F)
190934.4 C (93.9 F)
191035.0 C (95.0 F)
191136.7 C (98.1 F)
191235.0 C (95.0 F)
191435.0 C (95.0 F)
191536.7 C (98.1 F)
192034.4 C (93.9 F)
192135.0 C (95.0 F)
192236.1 C (97.0 F)
192336.1 C (97.0 F)
192433.9 C (93.0 F)
192533.9 C (93.0 F)
192636.1 C (97.0 F)
192736.1 C (97.0 F)
192835.6 C (96.1 F)
192937.8 C (100.0 F)
193136.7 C (98.1 F)
193236.7 C (98.1 F)
193336.1 C (97.0 F)
193436.7 C (98.1 F)
193536.1 C (97.0 F)
193636.1 C (97.0 F)
193736.1 C (97.0 F)
193935.0 C (95.0 F)
194035.0 C (95.0 F)
194135.6 C (96.1 F)
194235.0 C (95.0 F)
194335.0 C (95.0 F)
194435.0 C (95.0 F)
194534.4 C (93.9 F)
194634.4 C (93.9 F)
194736.7 C (98.1 F)
194835.6 C (96.1 F)
194936.7 C (98.1 F)
195035.6 C (96.1 F)
195135.0 C (95.0 F)
195235.0 C (95.0 F)
195334.4 C (93.9 F)
195436.1 C (97.0 F)
195536.1 C (97.0 F)
195636.7 C (98.1 F)
195736.7 C (98.1 F)
195834.4 C (93.9 F)
195936.1 C (97.0 F)
196035.0 C (95.0 F)
196135.0 C (95.0 F)
196234.4 C (93.9 F)
196336.1 C (97.0 F)
196535.0 C (95.0 F)
196635.6 C (96.1 F)
196733.9 C (93.0 F)
196834.4 C (93.9 F)
196935.0 C (95.0 F)
197035.6 C (96.1 F)
197135.0 C (95.0 F)
197235.6 C (96.1 F)
197335.0 C (95.0 F)

Coldest night (TNn)

Coldest night (TNn) at San German 4 W by year The coldest night of the year at San German 4 W, 1904 to 1973. The record is 9.4 C (48.9 F) in 1907, marked on the chart; the median year is 13.3 C (55.9 F). 81012141618192019401960Record: 9.4 C (48.9 F) in 1907
The coldest night of the year at San German 4 W, 1904 to 1973. The record is 9.4 C (48.9 F) in 1907, marked on the chart; the median year is 13.3 C (55.9 F).
Coldest night (TNn) at San German 4 W by year
YearColdest night (TNn)
190415.6 C (60.1 F)
190513.3 C (55.9 F)
190613.9 C (57.0 F)
19079.4 C (48.9 F)
190813.9 C (57.0 F)
190912.2 C (54.0 F)
191010.6 C (51.1 F)
191110.6 C (51.1 F)
191211.7 C (53.1 F)
191413.3 C (55.9 F)
191510.0 C (50.0 F)
192014.4 C (57.9 F)
192114.4 C (57.9 F)
192211.7 C (53.1 F)
192311.7 C (53.1 F)
192415.0 C (59.0 F)
192514.4 C (57.9 F)
192615.6 C (60.1 F)
192713.9 C (57.0 F)
192813.3 C (55.9 F)
192912.2 C (54.0 F)
193112.2 C (54.0 F)
193212.2 C (54.0 F)
193312.8 C (55.0 F)
193413.3 C (55.9 F)
193511.7 C (53.1 F)
193612.2 C (54.0 F)
193715.0 C (59.0 F)
193914.4 C (57.9 F)
194013.9 C (57.0 F)
194115.0 C (59.0 F)
194215.0 C (59.0 F)
194315.0 C (59.0 F)
194414.4 C (57.9 F)
194514.4 C (57.9 F)
194610.0 C (50.0 F)
194711.7 C (53.1 F)
194814.4 C (57.9 F)
194912.8 C (55.0 F)
19509.4 C (48.9 F)
195112.8 C (55.0 F)
195214.4 C (57.9 F)
195312.8 C (55.0 F)
195413.3 C (55.9 F)
195512.8 C (55.0 F)
195613.3 C (55.9 F)
195713.9 C (57.0 F)
195815.0 C (59.0 F)
195914.4 C (57.9 F)
196013.9 C (57.0 F)
196112.8 C (55.0 F)
196212.8 C (55.0 F)
196313.3 C (55.9 F)
196517.2 C (63.0 F)
196612.2 C (54.0 F)
196712.2 C (54.0 F)
196812.2 C (54.0 F)
196913.3 C (55.9 F)
197013.9 C (57.0 F)
197114.4 C (57.9 F)
197212.8 C (55.0 F)
197313.3 C (55.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at San German 4 W by year The wettest day of the year at San German 4 W, 1904 to 1973. The record is 355.6 mm (14.0 in) in 1912, marked on the chart; the median year is 89.6 mm (3.5 in). 0100200300400192019401960Record: 355.6 mm (14.0 in) in 1912
The wettest day of the year at San German 4 W, 1904 to 1973. The record is 355.6 mm (14.0 in) in 1912, marked on the chart; the median year is 89.6 mm (3.5 in).
Wettest day (Rx1day) at San German 4 W by year
YearWettest day (Rx1day)
190476.2 mm (3.0 in)
1905101.6 mm (4.0 in)
1906102.1 mm (4.0 in)
190783.8 mm (3.3 in)
190858.4 mm (2.3 in)
1909112.3 mm (4.4 in)
191055.9 mm (2.2 in)
1911203.2 mm (8.0 in)
1912355.6 mm (14.0 in)
1914127.0 mm (5.0 in)
191555.9 mm (2.2 in)
1920137.2 mm (5.4 in)
1921215.9 mm (8.5 in)
192271.1 mm (2.8 in)
192386.4 mm (3.4 in)
192431.8 mm (1.3 in)
192596.5 mm (3.8 in)
1926129.8 mm (5.1 in)
1927142.2 mm (5.6 in)
1928251.5 mm (9.9 in)
192978.7 mm (3.1 in)
1931125.0 mm (4.9 in)
1932142.2 mm (5.6 in)
1933142.2 mm (5.6 in)
193471.9 mm (2.8 in)
1935110.2 mm (4.3 in)
193690.7 mm (3.6 in)
193776.2 mm (3.0 in)
1939114.3 mm (4.5 in)
194071.1 mm (2.8 in)
194190.4 mm (3.6 in)
194266.0 mm (2.6 in)
1943162.6 mm (6.4 in)
194488.9 mm (3.5 in)
194581.3 mm (3.2 in)
194677.0 mm (3.0 in)
194773.2 mm (2.9 in)
1948158.0 mm (6.2 in)
1949101.6 mm (4.0 in)
1950157.5 mm (6.2 in)
195177.5 mm (3.1 in)
1952158.0 mm (6.2 in)
1953110.5 mm (4.4 in)
1954170.2 mm (6.7 in)
1955145.0 mm (5.7 in)
195690.2 mm (3.6 in)
195785.1 mm (3.4 in)
1958140.0 mm (5.5 in)
195966.0 mm (2.6 in)
196064.3 mm (2.5 in)
196165.8 mm (2.6 in)
196255.1 mm (2.2 in)
1963162.3 mm (6.4 in)
196552.8 mm (2.1 in)
196663.2 mm (2.5 in)
196797.8 mm (3.9 in)
196865.8 mm (2.6 in)
196974.4 mm (2.9 in)
197067.6 mm (2.7 in)
197157.4 mm (2.3 in)
197271.1 mm (2.8 in)
197375.4 mm (3.0 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at San German 4 W by year The wettest five days of the year at San German 4 W, 1904 to 1973. The record is 396.2 mm (15.6 in) in 1912, marked on the chart; the median year is 158.0 mm (6.2 in). 0100200300400192019401960Record: 396.2 mm (15.6 in) in 1912
The wettest five days of the year at San German 4 W, 1904 to 1973. The record is 396.2 mm (15.6 in) in 1912, marked on the chart; the median year is 158.0 mm (6.2 in).
Wettest five days (Rx5day) at San German 4 W by year
YearWettest five days (Rx5day)
1904117.6 mm (4.6 in)
1905197.4 mm (7.8 in)
1906138.7 mm (5.5 in)
1907159.3 mm (6.3 in)
1908107.8 mm (4.2 in)
1909153.2 mm (6.0 in)
191090.1 mm (3.5 in)
1911306.0 mm (12.0 in)
1912396.2 mm (15.6 in)
1914195.6 mm (7.7 in)
191594.0 mm (3.7 in)
1920146.3 mm (5.8 in)
1921243.9 mm (9.6 in)
1922166.3 mm (6.5 in)
1923139.0 mm (5.5 in)
192464.5 mm (2.5 in)
1925143.4 mm (5.6 in)
1926156.7 mm (6.2 in)
1927237.6 mm (9.4 in)
1928271.9 mm (10.7 in)
1929124.4 mm (4.9 in)
1931170.0 mm (6.7 in)
1932268.4 mm (10.6 in)
1933175.2 mm (6.9 in)
1934146.2 mm (5.8 in)
1935170.9 mm (6.7 in)
1936169.3 mm (6.7 in)
1937152.8 mm (6.0 in)
1939207.3 mm (8.2 in)
1940173.2 mm (6.8 in)
1941191.1 mm (7.5 in)
1942108.3 mm (4.3 in)
1943209.0 mm (8.2 in)
1944164.6 mm (6.5 in)
1945175.3 mm (6.9 in)
1946150.4 mm (5.9 in)
1947103.9 mm (4.1 in)
1948175.7 mm (6.9 in)
1949151.1 mm (5.9 in)
1950188.0 mm (7.4 in)
1951134.4 mm (5.3 in)
1952225.9 mm (8.9 in)
1953126.3 mm (5.0 in)
1954232.9 mm (9.2 in)
1955192.0 mm (7.6 in)
1956173.3 mm (6.8 in)
1957112.3 mm (4.4 in)
1958213.7 mm (8.4 in)
1959100.3 mm (3.9 in)
1960120.7 mm (4.8 in)
1961140.5 mm (5.5 in)
1962113.3 mm (4.5 in)
1963306.5 mm (12.1 in)
1965173.9 mm (6.8 in)
1966150.1 mm (5.9 in)
1967165.1 mm (6.5 in)
1968118.1 mm (4.6 in)
1969128.2 mm (5.0 in)
1970121.4 mm (4.8 in)
197179.3 mm (3.1 in)
197298.0 mm (3.9 in)
1973171.2 mm (6.7 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at San German 4 W by year The longest dry spell of the year at San German 4 W, 1904 to 1973. The record is 47 days in 1967, marked on the chart; the median year is 21 days. 1020304050192019401960Record: 47 days in 1967
The longest dry spell of the year at San German 4 W, 1904 to 1973. The record is 47 days in 1967, marked on the chart; the median year is 21 days.
Longest dry spell (CDD) at San German 4 W by year
YearLongest dry spell (CDD)
190410 days
190529 days
190618 days
190712 days
190822 days
190923 days
191037 days
191134 days
191223 days
191422 days
191522 days
192018 days
192114 days
192220 days
192321 days
192418 days
192527 days
192620 days
192722 days
192824 days
192916 days
193122 days
193213 days
193312 days
193418 days
193513 days
193618 days
193720 days
193918 days
194012 days
194118 days
194216 days
194315 days
194416 days
194515 days
194610 days
194723 days
194820 days
194918 days
195027 days
195122 days
195226 days
195319 days
195415 days
195521 days
195615 days
195718 days
195838 days
195923 days
196028 days
196124 days
196224 days
196345 days
196510 days
196622 days
196747 days
196831 days
196925 days
197043 days
197126 days
197231 days
197337 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

46 years, 1905 to 1972

A day with at least 97.0 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 319.6 mm (12.6 in) of rain is expected about once in 100 years.

Rainfall return levels at San German 4 W: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years97.0 mm (3.8 in)
5 years138.2 mm (5.4 in)
10 years171.6 mm (6.8 in)
25 years222.4 mm (8.8 in)
50 years267.5 mm (10.5 in)Longer than the 46 years of record
100 years319.6 mm (12.6 in)Longer than the 46 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, 46 years of values from 1905 to 1972.

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: 355.6 mm (14.0 in) in 1912; 215.9 mm (8.5 in) in 1921; 203.2 mm (8.0 in) in 1911.

Download the Data

  • Data for San German 4 W standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for San German 4 W 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).