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Imperial Beach Ream Fld NAS Weather Records (USW00093115)

Record envelope, standing records and threshold days for Imperial Beach Ream Fld NAS (USW00093115), California, United States, with 82 years of record.

Key Facts for Imperial Beach Ream Fld NAS

  • Imperial Beach Ream Fld NAS (USW00093115) is a weather station in California, United States at 32.57 latitude and -117.12 longitude, 7 m (24 ft) above sea level.
  • The station reports from 1945 to 2026, 82 years of record.
  • 1,464 records set at Imperial Beach Ream Fld NAS still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Imperial Beach Ream Fld NAS set a daily record high maximum temperature of 33.9 C (93.0 F) on 6 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: California, United States, 32.57 latitude, -117.12 longitude.
  • Elevation: 7 m (24 ft).
  • Period of record: 1945 to 2026, 82 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

7 days at or beyond a record
Daily record high and record low at Imperial Beach Ream Fld NAS, with 2026 drawn through them The band shows the record high and record low for each calendar day at Imperial Beach Ream Fld NAS. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -10010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Imperial Beach Ream Fld NAS. The lines show the 2026 daily maximum and minimum. 7 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Imperial Beach Ream Fld NAS, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan30.0 C (86.0 F)-3.3 C (26.1 F)27.2 C (81.0 F)2.8 C (37.0 F)
Feb33.9 C (93.0 F)0.0 C (32.0 F)31.1 C (88.0 F)5.6 C (42.1 F)
Mar30.0 C (86.0 F)0.6 C (33.1 F)27.2 C (81.0 F)6.7 C (44.1 F)
Apr30.0 C (86.0 F)1.1 C (34.0 F)26.1 C (79.0 F)9.4 C (48.9 F)
May29.4 C (84.9 F)6.1 C (43.0 F)22.2 C (72.0 F)10.0 C (50.0 F)
Jun32.2 C (90.0 F)7.8 C (46.0 F)24.4 C (75.9 F)12.2 C (54.0 F)
Jul33.3 C (91.9 F)11.1 C (52.0 F)26.1 C (79.0 F)15.0 C (59.0 F)
Aug33.3 C (91.9 F)9.4 C (48.9 F)27.2 C (81.0 F)16.1 C (61.0 F)
Sep35.0 C (95.0 F)8.9 C (48.0 F)31.7 C (89.1 F)13.9 C (57.0 F)
Oct36.7 C (98.1 F)1.7 C (35.1 F)33.9 C (93.0 F)16.1 C (61.0 F)
Nov37.2 C (99.0 F)-1.0 C (30.2 F)n/an/a
Dec30.6 C (87.1 F)-1.1 C (30.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Imperial Beach Ream Fld NAS by the year they were set 1,464 records at Imperial Beach Ream Fld NAS still stand. 1971 holds the most, with 98. 02550751001945: 351946: 171947: 201948: 261949: 61955: 51956: 431957: 141958: 171959: 211960: 141961: 151962: 351963: 151964: 321965: 401966: 161967: 221968: 231969: 251970: 221971: 981972: 281973: 241974: 411975: 231976: 241977: 211978: 351979: 191980: 391981: 151982: 131983: 181984: 31985: 131986: 71987: 81988: 61989: 161990: 131991: 111992: 321993: 111994: 151995: 291996: 161997: 271998: 92001: 142002: 92003: 52007: 92008: 752009: 202010: 542011: 212012: 242013: 122014: 242015: 312016: 242017: 162018: 142019: 12022: 102023: 12025: 92026: 141945195719641971197819851992200120112018
1,464 records at Imperial Beach Ream Fld NAS still stand. 1971 holds the most, with 98.
Standing records at Imperial Beach Ream Fld NAS by the year they were set
Year setStanding records
194535
194617
194720
194826
19496
19555
195643
195714
195817
195921
196014
196115
196235
196315
196432
196540
196616
196722
196823
196925
197022
197198
197228
197324
197441
197523
197624
197721
197835
197919
198039
198115
198213
198318
19843
198513
19867
19878
19886
198916
199013
199111
199232
199311
199415
199529
199616
199727
19989
200114
20029
20035
20079
200875
200920
201054
201121
201224
201312
201424
201531
201624
201716
201814
20191
202210
20231
20259
202614

All-Time Record Progression

5 new records
When Imperial Beach Ream Fld NAS set new all-time records 5 all-time records were set at Imperial Beach Ream Fld NAS between 25 November 1985 and 1 September 2008. Each dot is a new record. Record daily precipitationRecord high minimum temperature25 November 1985: Record daily precipitation 73.2 mm (2.9 in)2 February 1988: Record daily precipitation 113.3 mm (4.5 in)30 August 2008: Record high minimum temperature 25.0 C (77.0 F)31 August 2008: Record high minimum temperature 26.7 C (80.1 F)1 September 2008: Record high minimum temperature 28.9 C (84.0 F)19851990199520002005
5 all-time records were set at Imperial Beach Ream Fld NAS between 25 November 1985 and 1 September 2008. Each dot is a new record.
When Imperial Beach Ream Fld NAS set new all-time records
DateKindDetail
1985-11-25Record daily precipitationRecord daily precipitation 73.2 mm (2.9 in)
1988-02-02Record daily precipitationRecord daily precipitation 113.3 mm (4.5 in)
2008-08-30Record high minimum temperatureRecord high minimum temperature 25.0 C (77.0 F)
2008-08-31Record high minimum temperatureRecord high minimum temperature 26.7 C (80.1 F)
2008-09-01Record high minimum temperatureRecord high minimum temperature 28.9 C (84.0 F)

Wettest Day of Each Month

Feb: 113.3 mm (4.5 in)
Record daily precipitation for each month at Imperial Beach Ream Fld NAS The wettest day on record for each calendar month at Imperial Beach Ream Fld NAS. The most was 113.3 mm (4.5 in) on 2 February 1988. 050100150 Jan: 58.4 mm (2.3 in), 7 January 1993 Jan Feb: 113.3 mm (4.5 in), 2 February 1988 Feb Mar: 52.1 mm (2.1 in), 18 March 2010 Mar Apr: 31.5 mm (1.2 in), 8 April 1965 Apr May: 25.9 mm (1.0 in), 8 May 1977 May Jun: 19.6 mm (0.8 in), 8 June 1990 Jun Jul: 39.9 mm (1.6 in), 24 July 2008 Jul Aug: 41.1 mm (1.6 in), 20 August 2023 Aug Sep: 28.4 mm (1.1 in), 4 September 1963 Sep Oct: 15.5 mm (0.6 in), 6 October 1977 Oct Nov: 73.2 mm (2.9 in), 25 November 1985 Nov Dec: 58.2 mm (2.3 in), 27 December 1984 Dec
The wettest day on record for each calendar month at Imperial Beach Ream Fld NAS. The most was 113.3 mm (4.5 in) on 2 February 1988.
Record daily precipitation for each month at Imperial Beach Ream Fld NAS
MonthRecord daily precipitation (mm)Date
Jan58.4 mm (2.3 in)7 January 1993
Feb113.3 mm (4.5 in)2 February 1988
Mar52.1 mm (2.1 in)18 March 2010
Apr31.5 mm (1.2 in)8 April 1965
May25.9 mm (1.0 in)8 May 1977
Jun19.6 mm (0.8 in)8 June 1990
Jul39.9 mm (1.6 in)24 July 2008
Aug41.1 mm (1.6 in)20 August 2023
Sep28.4 mm (1.1 in)4 September 1963
Oct15.5 mm (0.6 in)6 October 1977
Nov73.2 mm (2.9 in)25 November 1985
Dec58.2 mm (2.3 in)27 December 1984

Period of Record Coverage

1945 to 2026
Days with data per year at Imperial Beach Ream Fld NAS 70 years of record at Imperial Beach Ream Fld NAS, 1945 to 2026. 41 years have data for under 90 percent of days and are left out of rankings: 1945, 1946, 1947, 1948, 1949, 1955, 1976, 1981 and others. 1945: 243 of 365 days1946: 148 of 365 days1947: 286 of 365 days1948: 153 of 366 days1949: 29 of 365 days1955: 53 of 365 days1956: 364 of 366 days1957: 364 of 365 days1958: 364 of 365 days1959: 364 of 365 days1960: 366 of 366 days1961: 364 of 365 days1962: 365 of 365 days1963: 363 of 365 days1964: 366 of 366 days1965: 364 of 365 days1966: 365 of 365 days1967: 362 of 365 days1968: 365 of 366 days1969: 365 of 365 days1970: 350 of 365 days1971: 363 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 364 of 365 days1976: 293 of 366 days1977: 332 of 365 days1978: 341 of 365 days1979: 361 of 365 days1980: 361 of 366 days1981: 326 of 365 days1982: 346 of 365 days1983: 331 of 365 days1984: 251 of 366 days1985: 252 of 365 days1986: 225 of 365 days1987: 239 of 365 days1988: 241 of 366 days1989: 230 of 365 days1990: 255 of 365 days1991: 256 of 365 days1992: 231 of 366 days1993: 248 of 365 days1994: 231 of 365 days1995: 247 of 365 days1996: 251 of 366 days1997: 245 of 365 days1998: 124 of 365 days2001: 248 of 365 days2002: 243 of 365 days2003: 105 of 365 days2007: 176 of 365 days2008: 329 of 366 days2009: 352 of 365 days2010: 304 of 365 days2011: 302 of 365 days2012: 303 of 366 days2013: 355 of 365 days2014: 345 of 365 days2015: 302 of 365 days2016: 298 of 366 days2017: 317 of 365 days2018: 327 of 365 days2019: 134 of 365 days2022: 238 of 365 days2023: 243 of 365 days2024: 84 of 366 days2025: 247 of 365 days2026: 276 of 365 days19601970198019902010
70 years of record at Imperial Beach Ream Fld NAS, 1945 to 2026. 41 years have data for under 90 percent of days and are left out of rankings: 1945, 1946, 1947, 1948, 1949, 1955, 1976, 1981 and others.
Days with data per year at Imperial Beach Ream Fld NAS
YearDays with dataShare of yearComplete
194524367%No
194614841%No
194728678%No
194815342%No
1949298%No
19555315%No
195636499%Yes
1957364100%Yes
1958364100%Yes
1959364100%Yes
1960366100%Yes
1961364100%Yes
1962365100%Yes
196336399%Yes
1964366100%Yes
1965364100%Yes
1966365100%Yes
196736299%Yes
1968365100%Yes
1969365100%Yes
197035096%Yes
197136399%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975364100%Yes
197629380%No
197733291%Yes
197834193%Yes
197936199%Yes
198036199%Yes
198132689%No
198234695%Yes
198333191%Yes
198425169%No
198525269%No
198622562%No
198723965%No
198824166%No
198923063%No
199025570%No
199125670%No
199223163%No
199324868%No
199423163%No
199524768%No
199625169%No
199724567%No
199812434%No
200124868%No
200224367%No
200310529%No
200717648%No
200832990%No
200935296%Yes
201030483%No
201130283%No
201230383%No
201335597%Yes
201434595%Yes
201530283%No
201629881%No
201731787%No
201832790%No
201913437%No
202223865%No
202324367%No
20248423%No
202524768%No
202627676%No

Latest Records

20
Latest records at Imperial Beach Ream Fld NAS
DateStationRecordValueBeat old record byOld record stoodSignificance
6 October 2026Imperial Beach Ream Fld NAS, USdaily high max (Provisional)33.9 C (93.0 F)2.2 C (4.0 F)55 years31 of 100 (Routine)
5 October 2026Imperial Beach Ream Fld NAS, USdaily high min (Provisional)21.1 C (70.0 F)1.7 C (3.1 F)32 years23 of 100 (Routine)
4 October 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie, Provisional)21.1 C (70.0 F)tie40 years5 of 100 (Routine)
18 September 2026Imperial Beach Ream Fld NAS, USdaily high min (Provisional)21.1 C (70.0 F)1.1 C (2.0 F)28 years20 of 100 (Routine)
17 September 2026Imperial Beach Ream Fld NAS, USdaily high min (Provisional)21.1 C (70.0 F)0.5 C (0.9 F)12 years13 of 100 (Routine)
9 September 2026Imperial Beach Ream Fld NAS, USdaily high min (Provisional)22.8 C (73.0 F)0.6 C (1.1 F)28 years18 of 100 (Routine)
8 September 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie, Provisional)21.1 C (70.0 F)tie12 years2 of 100 (Routine)
28 August 2026Imperial Beach Ream Fld NAS, USdaily high min (Provisional)21.7 C (71.1 F)1.1 C (2.0 F)4 years14 of 100 (Routine)
24 August 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie, Provisional)20.6 C (69.1 F)tie67 years7 of 100 (Routine)
28 July 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)20.6 C (69.1 F)tie57 years6 of 100 (Routine)
27 July 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)21.7 C (71.1 F)tie52 years5 of 100 (Routine)
24 July 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)21.1 C (70.0 F)tie52 years5 of 100 (Routine)
23 July 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)21.1 C (70.0 F)tie52 years5 of 100 (Routine)
19 June 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)17.8 C (64.0 F)tie56 years6 of 100 (Routine)
16 June 2026Imperial Beach Ream Fld NAS, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)17 years16 of 100 (Routine)
13 June 2026Imperial Beach Ream Fld NAS, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)67 years31 of 100 (Routine)
12 June 2026Imperial Beach Ream Fld NAS, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)12 years14 of 100 (Routine)
7 June 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)17.8 C (64.0 F)tie32 years4 of 100 (Routine)
6 June 2026Imperial Beach Ream Fld NAS, USdaily high min (Tie)17.2 C (63.0 F)tie28 years4 of 100 (Routine)
25 May 2026Imperial Beach Ream Fld NAS, USdaily high min17.2 C (63.0 F)0.5 C (0.9 F)11 years13 of 100 (Routine)

Climate Trend

23 complete years, 1956 to 2013
Annual mean temperature at Imperial Beach Ream Fld NAS as warming stripes, 1956 to 2013 One stripe for each of 23 complete years at Imperial Beach Ream Fld NAS, 1956 to 2013. Blue stripes are years cooler than the station's own mean of 16.1 C (61.0 F); red stripes are warmer. The coolest year was 1971, at 14.4 C (57.9 F), and the warmest was 1980, at 17.6 C (63.6 F). The strongest colour marks a difference of 1.8 C (3.2 F). 1956: 15.4 C, -0.7 C from the station mean1957: 16.2 C, +0.1 C from the station mean1958: 17.0 C, +0.9 C from the station mean1959: 17.3 C, +1.2 C from the station mean1960: 16.0 C, -0.2 C from the station mean1961: 16.0 C, -0.1 C from the station mean1962: 15.3 C, -0.8 C from the station mean1963: 16.4 C, +0.3 C from the station mean1964: 15.4 C, -0.7 C from the station mean1965: 15.8 C, -0.4 C from the station mean1966: 16.6 C, +0.4 C from the station mean1967: 16.1 C, 0.0 C from the station mean1968: 16.3 C, +0.2 C from the station mean1969: 16.5 C, +0.4 C from the station mean1971: 14.4 C, -1.7 C from the station mean1972: 15.8 C, -0.3 C from the station mean1973: 15.4 C, -0.7 C from the station mean1974: 17.1 C, +1.0 C from the station mean1975: 15.3 C, -0.8 C from the station mean1978: 17.0 C, +0.9 C from the station mean1980: 17.6 C, +1.4 C from the station mean2009: 15.8 C, -0.3 C from the station mean2013: 16.2 C, +0.1 C from the station mean195619601965197019751980198519901995200020052010
One stripe for each of 23 complete years at Imperial Beach Ream Fld NAS, 1956 to 2013. Blue stripes are years cooler than the station's own mean of 16.1 C (61.0 F); red stripes are warmer. The coolest year was 1971, at 14.4 C (57.9 F), and the warmest was 1980, at 17.6 C (63.6 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Imperial Beach Ream Fld NAS as warming stripes, 1956 to 2013
YearAnnual mean temperatureDifference from the station mean
195615.4 C-0.68 C
195716.2 C+0.07 C
195817.0 C+0.88 C
195917.3 C+1.21 C
196016.0 C-0.16 C
196116.0 C-0.11 C
196215.3 C-0.83 C
196316.4 C+0.25 C
196415.4 C-0.67 C
196515.8 C-0.36 C
196616.6 C+0.44 C
196716.1 C-0.03 C
196816.3 C+0.19 C
196916.5 C+0.35 C
197114.4 C-1.74 C
197215.8 C-0.33 C
197315.4 C-0.73 C
197417.1 C+1.03 C
197515.3 C-0.83 C
197817.0 C+0.87 C
198017.6 C+1.44 C
200915.8 C-0.34 C
201316.2 C+0.05 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

1945 to 2026
Yearly extremes at Imperial Beach Ream Fld NAS: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.2 C (99.0 F)197631.4 C (88.5 F)70
Coldest night (TNn)-3.3 C (26.1 F)19712.8 C (37.0 F)68
Wettest day (Rx1day)113.3 mm (4.5 in)198826.7 mm (1.1 in)71
Wettest five days (Rx5day)130.3 mm (5.1 in)198842.1 mm (1.7 in)70
Longest dry spell (CDD)214 days197487 days71

Hottest day (TXx)

Hottest day (TXx) at Imperial Beach Ream Fld NAS by year The hottest day of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 37.2 C (99.0 F) in 1976, marked on the chart; the median year is 31.4 C (88.5 F). 20253035401960198020002020Record: 37.2 C (99.0 F) in 1976
The hottest day of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 37.2 C (99.0 F) in 1976, marked on the chart; the median year is 31.4 C (88.5 F).
Hottest day (TXx) at Imperial Beach Ream Fld NAS by year
YearHottest day (TXx)
194533.3 C (91.9 F)
194626.1 C (79.0 F)
194727.8 C (82.0 F)
194827.8 C (82.0 F)
194923.9 C (75.0 F)
195525.6 C (78.1 F)
195635.0 C (95.0 F)
195728.9 C (84.0 F)
195836.1 C (97.0 F)
195928.9 C (84.0 F)
196032.2 C (90.0 F)
196133.9 C (93.0 F)
196227.8 C (82.0 F)
196332.2 C (90.0 F)
196435.0 C (95.0 F)
196535.6 C (96.1 F)
196636.7 C (98.1 F)
196732.2 C (90.0 F)
196832.8 C (91.0 F)
196926.7 C (80.1 F)
197035.0 C (95.0 F)
197131.7 C (89.1 F)
197230.0 C (86.0 F)
197330.6 C (87.1 F)
197435.6 C (96.1 F)
197531.7 C (89.1 F)
197637.2 C (99.0 F)
197728.9 C (84.0 F)
197833.9 C (93.0 F)
197930.6 C (87.1 F)
198032.2 C (90.0 F)
198131.1 C (88.0 F)
198232.2 C (90.0 F)
198333.3 C (91.9 F)
198430.0 C (86.0 F)
198532.8 C (91.0 F)
198629.4 C (84.9 F)
198730.0 C (86.0 F)
198831.1 C (88.0 F)
198932.8 C (91.0 F)
199031.1 C (88.0 F)
199132.8 C (91.0 F)
199230.0 C (86.0 F)
199328.3 C (82.9 F)
199430.0 C (86.0 F)
199528.3 C (82.9 F)
199629.4 C (84.9 F)
199734.4 C (93.9 F)
199825.6 C (78.1 F)
200126.7 C (80.1 F)
200233.3 C (91.9 F)
200328.3 C (82.9 F)
200731.1 C (88.0 F)
200835.0 C (95.0 F)
200932.8 C (91.0 F)
201030.0 C (86.0 F)
201132.8 C (91.0 F)
201233.9 C (93.0 F)
201331.1 C (88.0 F)
201433.9 C (93.0 F)
201535.0 C (95.0 F)
201636.7 C (98.1 F)
201736.7 C (98.1 F)
201830.0 C (86.0 F)
201925.0 C (77.0 F)
2020n/a
2021n/a
202235.6 C (96.1 F)
202330.6 C (87.1 F)
202424.4 C (75.9 F)
202528.9 C (84.0 F)
202633.9 C (93.0 F)

Coldest night (TNn)

Coldest night (TNn) at Imperial Beach Ream Fld NAS by year The coldest night of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is -3.3 C (26.1 F) in 1971, marked on the chart; the median year is 2.8 C (37.0 F). -505101960198020002020Record: -3.3 C (26.1 F) in 1971
The coldest night of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is -3.3 C (26.1 F) in 1971, marked on the chart; the median year is 2.8 C (37.0 F).
Coldest night (TNn) at Imperial Beach Ream Fld NAS by year
YearColdest night (TNn)
19450.6 C (33.1 F)
1946-2.2 C (28.0 F)
1947-2.8 C (27.0 F)
19483.9 C (39.0 F)
1949-1.7 C (28.9 F)
19552.2 C (36.0 F)
1956-0.6 C (30.9 F)
19572.8 C (37.0 F)
19581.7 C (35.1 F)
19593.9 C (39.0 F)
19600.6 C (33.1 F)
19613.3 C (37.9 F)
19622.8 C (37.0 F)
1963-2.8 C (27.0 F)
19642.2 C (36.0 F)
19652.8 C (37.0 F)
19661.7 C (35.1 F)
19672.2 C (36.0 F)
19680.6 C (33.1 F)
19693.9 C (39.0 F)
19703.3 C (37.9 F)
1971-3.3 C (26.1 F)
1972-1.7 C (28.9 F)
19732.8 C (37.0 F)
19740.6 C (33.1 F)
19750.6 C (33.1 F)
19760.0 C (32.0 F)
19772.2 C (36.0 F)
1978-1.1 C (30.0 F)
19791.7 C (35.1 F)
19805.6 C (42.1 F)
19815.6 C (42.1 F)
19824.4 C (39.9 F)
19835.6 C (42.1 F)
1984n/a
19853.3 C (37.9 F)
19866.1 C (43.0 F)
19879.4 C (48.9 F)
19883.3 C (37.9 F)
19891.7 C (35.1 F)
19902.8 C (37.0 F)
19913.9 C (39.0 F)
19923.9 C (39.0 F)
19934.4 C (39.9 F)
19946.7 C (44.1 F)
19957.2 C (45.0 F)
19965.0 C (41.0 F)
19975.0 C (41.0 F)
19982.2 C (36.0 F)
20013.3 C (37.9 F)
20022.2 C (36.0 F)
20035.6 C (42.1 F)
2007-1.0 C (30.2 F)
20081.7 C (35.1 F)
20092.8 C (37.0 F)
20104.4 C (39.9 F)
20113.3 C (37.9 F)
20122.8 C (37.0 F)
20132.2 C (36.0 F)
20141.1 C (34.0 F)
20151.1 C (34.0 F)
20162.8 C (37.0 F)
20172.2 C (36.0 F)
20183.9 C (39.0 F)
20190.6 C (33.1 F)
2020n/a
2021n/a
20221.7 C (35.1 F)
20234.4 C (39.9 F)
2024n/a
20255.6 C (42.1 F)
20262.8 C (37.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Imperial Beach Ream Fld NAS by year The wettest day of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 113.3 mm (4.5 in) in 1988, marked on the chart; the median year is 26.7 mm (1.1 in). 0501001501960198020002020Record: 113.3 mm (4.5 in) in 1988
The wettest day of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 113.3 mm (4.5 in) in 1988, marked on the chart; the median year is 26.7 mm (1.1 in).
Wettest day (Rx1day) at Imperial Beach Ream Fld NAS by year
YearWettest day (Rx1day)
194512.7 mm (0.5 in)
19460.0 mm (0.00 in)
19470.0 mm (0.00 in)
19480.0 mm (0.00 in)
1949n/a
19553.3 mm (0.13 in)
195619.3 mm (0.8 in)
195741.4 mm (1.6 in)
195827.4 mm (1.1 in)
195922.6 mm (0.9 in)
196030.0 mm (1.2 in)
196118.8 mm (0.7 in)
196225.7 mm (1.0 in)
196348.0 mm (1.9 in)
196416.8 mm (0.7 in)
196545.0 mm (1.8 in)
196633.3 mm (1.3 in)
196736.1 mm (1.4 in)
196840.1 mm (1.6 in)
196934.5 mm (1.4 in)
197038.1 mm (1.5 in)
197116.8 mm (0.7 in)
197224.9 mm (1.0 in)
197315.0 mm (0.6 in)
197419.6 mm (0.8 in)
197513.5 mm (0.5 in)
197628.4 mm (1.1 in)
197735.8 mm (1.4 in)
197832.3 mm (1.3 in)
197953.6 mm (2.1 in)
198047.5 mm (1.9 in)
198126.2 mm (1.0 in)
198226.7 mm (1.1 in)
198342.4 mm (1.7 in)
198458.2 mm (2.3 in)
198573.2 mm (2.9 in)
198640.1 mm (1.6 in)
198724.4 mm (1.0 in)
1988113.3 mm (4.5 in)
19895.3 mm (0.21 in)
199021.6 mm (0.9 in)
199127.4 mm (1.1 in)
199259.9 mm (2.4 in)
199358.4 mm (2.3 in)
199422.9 mm (0.9 in)
199521.8 mm (0.9 in)
199616.8 mm (0.7 in)
199726.9 mm (1.1 in)
199843.2 mm (1.7 in)
200127.4 mm (1.1 in)
20024.8 mm (0.19 in)
200316.0 mm (0.6 in)
200719.0 mm (0.7 in)
200839.9 mm (1.6 in)
200953.1 mm (2.1 in)
201052.1 mm (2.1 in)
201115.0 mm (0.6 in)
201226.9 mm (1.1 in)
201312.7 mm (0.5 in)
201411.7 mm (0.5 in)
201510.7 mm (0.4 in)
201632.3 mm (1.3 in)
201722.6 mm (0.9 in)
201816.0 mm (0.6 in)
201933.8 mm (1.3 in)
20200.0 mm (0.00 in)
20210.0 mm (0.00 in)
202227.4 mm (1.1 in)
202341.1 mm (1.6 in)
202433.0 mm (1.3 in)
20250.0 mm (0.00 in)
20260.0 mm (0.00 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Imperial Beach Ream Fld NAS by year The wettest five days of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 130.3 mm (5.1 in) in 1988, marked on the chart; the median year is 42.1 mm (1.7 in). 0501001501960198020002020Record: 130.3 mm (5.1 in) in 1988
The wettest five days of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 130.3 mm (5.1 in) in 1988, marked on the chart; the median year is 42.1 mm (1.7 in).
Wettest five days (Rx5day) at Imperial Beach Ream Fld NAS by year
YearWettest five days (Rx5day)
194520.3 mm (0.8 in)
19460.0 mm (0.00 in)
19470.0 mm (0.00 in)
19480.0 mm (0.00 in)
1949n/a
19555.1 mm (0.20 in)
195636.1 mm (1.4 in)
195768.6 mm (2.7 in)
195847.2 mm (1.9 in)
195934.5 mm (1.4 in)
196061.7 mm (2.4 in)
196128.0 mm (1.1 in)
196267.2 mm (2.6 in)
196351.0 mm (2.0 in)
196423.8 mm (0.9 in)
196591.4 mm (3.6 in)
196660.0 mm (2.4 in)
196767.0 mm (2.6 in)
196846.2 mm (1.8 in)
196942.6 mm (1.7 in)
197055.1 mm (2.2 in)
197128.3 mm (1.1 in)
197241.4 mm (1.6 in)
197330.8 mm (1.2 in)
197439.3 mm (1.5 in)
197528.0 mm (1.1 in)
197657.2 mm (2.3 in)
197753.4 mm (2.1 in)
197842.9 mm (1.7 in)
197973.9 mm (2.9 in)
198063.2 mm (2.5 in)
198153.4 mm (2.1 in)
198259.4 mm (2.3 in)
1983103.9 mm (4.1 in)
198466.1 mm (2.6 in)
198590.5 mm (3.6 in)
198645.2 mm (1.8 in)
198742.9 mm (1.7 in)
1988130.3 mm (5.1 in)
19895.3 mm (0.21 in)
199019.6 mm (0.8 in)
199144.2 mm (1.7 in)
199260.2 mm (2.4 in)
199390.4 mm (3.6 in)
199429.3 mm (1.2 in)
199525.4 mm (1.0 in)
199637.6 mm (1.5 in)
199726.9 mm (1.1 in)
199847.8 mm (1.9 in)
200157.4 mm (2.3 in)
20027.4 mm (0.29 in)
200317.3 mm (0.7 in)
200719.3 mm (0.8 in)
200839.9 mm (1.6 in)
200973.4 mm (2.9 in)
201052.1 mm (2.1 in)
201115.0 mm (0.6 in)
201227.2 mm (1.1 in)
201313.7 mm (0.5 in)
201421.6 mm (0.9 in)
201510.7 mm (0.4 in)
201653.1 mm (2.1 in)
201743.2 mm (1.7 in)
201816.8 mm (0.7 in)
201953.1 mm (2.1 in)
20200.0 mm (0.00 in)
20210.0 mm (0.00 in)
202229.2 mm (1.1 in)
202341.6 mm (1.6 in)
202444.4 mm (1.7 in)
20250.0 mm (0.00 in)
2026n/a

Longest dry spell (CDD)

Longest dry spell (CDD) at Imperial Beach Ream Fld NAS by year The longest dry spell of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 214 days in 1974, marked on the chart; the median year is 87 days. 01002003001960198020002020Record: 214 days in 1974
The longest dry spell of the year at Imperial Beach Ream Fld NAS, 1945 to 2026. The record is 214 days in 1974, marked on the chart; the median year is 87 days.
Longest dry spell (CDD) at Imperial Beach Ream Fld NAS by year
YearLongest dry spell (CDD)
1945180 days
1946105 days
194731 days
1948123 days
1949n/a
195524 days
1956148 days
195787 days
195894 days
1959157 days
1960136 days
1961128 days
1962139 days
196355 days
1964185 days
1965107 days
1966112 days
196779 days
1968109 days
1969183 days
1970128 days
1971123 days
197277 days
1973200 days
1974214 days
1975142 days
1976124 days
197794 days
197859 days
1979138 days
1980167 days
1981122 days
1982159 days
1983150 days
198451 days
1985129 days
198660 days
19877 days
19886 days
19896 days
19906 days
19916 days
19925 days
19935 days
19945 days
19955 days
19966 days
19975 days
19985 days
200112 days
20025 days
200313 days
200789 days
200861 days
2009211 days
2010150 days
2011101 days
201251 days
201372 days
201497 days
201538 days
201669 days
201792 days
2018121 days
201985 days
2020104 days
202161 days
202231 days
202329 days
202416 days
202554 days
20261 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

35 years, 1956 to 2020

A day with at least 30.7 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 72.3 mm (2.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Imperial Beach Ream Fld NAS: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years30.7 mm (1.2 in)
5 years44.7 mm (1.8 in)
10 years52.6 mm (2.1 in)
25 years61.4 mm (2.4 in)
50 years67.2 mm (2.6 in)Longer than the 35 years of record
100 years72.3 mm (2.8 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 1956 to 2020.

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: 73.2 mm (2.9 in) in 1985; 58.2 mm (2.3 in) in 1984; 53.6 mm (2.1 in) in 1979.

Download the Data

  • Data for Imperial Beach Ream Fld NAS standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Imperial Beach Ream Fld NAS 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 (2026-10-14).