Built 2026-10-18 (18 October 2026)

Summer Rim Weather Records (USS0020G02S)

Record envelope, standing records and threshold days for Summer Rim (USS0020G02S), Oregon, United States, with 49 years of record.

Key Facts for Summer Rim

  • Summer Rim (USS0020G02S) is a weather station in Oregon, United States at 42.70 latitude and -120.80 longitude, 2,158 m (7,080 ft) above sea level.
  • The station reports from 1978 to 2026, 49 years of record.
  • 1,464 records set at Summer Rim still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Summer Rim set a daily record low maximum temperature of 1.8 C (35.2 F) on 12 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Oregon, United States, 42.70 latitude, -120.80 longitude.
  • Elevation: 2,158 m (7,080 ft).
  • Period of record: 1978 to 2026, 49 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

11 days at or beyond a record
Daily record high and record low at Summer Rim, with 2026 drawn through them The band shows the record high and record low for each calendar day at Summer Rim. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Summer Rim. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Summer Rim, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.0 C (60.8 F)-22.2 C (-8.0 F)16.0 C (60.8 F)-9.8 C (14.4 F)
Feb15.4 C (59.7 F)-22.4 C (-8.3 F)13.0 C (55.4 F)-11.6 C (11.1 F)
Mar18.0 C (64.4 F)-17.5 C (0.5 F)16.6 C (61.9 F)-6.5 C (20.3 F)
Apr20.6 C (69.1 F)-17.1 C (1.2 F)14.9 C (58.8 F)-8.6 C (16.5 F)
May25.8 C (78.4 F)-10.4 C (13.3 F)20.8 C (69.4 F)-4.6 C (23.7 F)
Jun31.3 C (88.3 F)-8.8 C (16.2 F)24.6 C (76.3 F)-2.8 C (27.0 F)
Jul34.8 C (94.6 F)-3.2 C (26.2 F)25.9 C (78.6 F)4.9 C (40.8 F)
Aug31.1 C (88.0 F)-5.4 C (22.3 F)27.8 C (82.0 F)3.3 C (37.9 F)
Sep30.7 C (87.3 F)-7.6 C (18.3 F)22.0 C (71.6 F)0.7 C (33.3 F)
Oct25.7 C (78.3 F)-15.1 C (4.8 F)23.0 C (73.4 F)-4.4 C (24.1 F)
Nov18.8 C (65.8 F)-19.2 C (-2.6 F)n/an/a
Dec16.4 C (61.5 F)-31.7 C (-25.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Summer Rim by the year they were set 1,464 records at Summer Rim still stand. 1996 holds the most, with 68. 0204060801990: 241991: 431992: 421993: 551994: 451995: 511996: 681997: 321998: 351999: 612000: 392001: 472002: 582003: 482004: 192005: 222006: 252007: 302008: 502009: 342010: 252011: 202012: 252013: 412014: 272015: 612016: 452017: 482018: 242019: 252020: 392021: 472022: 482023: 422024: 392025: 382026: 421990199419982002200620102014201820222026
1,464 records at Summer Rim still stand. 1996 holds the most, with 68.
Standing records at Summer Rim by the year they were set
Year setStanding records
199024
199143
199242
199355
199445
199551
199668
199732
199835
199961
200039
200147
200258
200348
200419
200522
200625
200730
200850
200934
201025
201120
201225
201341
201427
201561
201645
201748
201824
201925
202039
202147
202248
202342
202439
202538
202642

All-Time Record Progression

3 new records
When Summer Rim set new all-time records 3 all-time records were set at Summer Rim between 20 May 2016 and 29 July 2022. Each dot is a new record. Record daily precipitationRecord high minimum temperature20 May 2016: Record daily precipitation 58.4 mm (2.3 in)12 June 2019: Record daily precipitation 61.0 mm (2.4 in)29 July 2022: Record high minimum temperature 19.7 C (67.5 F)2020
3 all-time records were set at Summer Rim between 20 May 2016 and 29 July 2022. Each dot is a new record.
When Summer Rim set new all-time records
DateKindDetail
2016-05-20Record daily precipitationRecord daily precipitation 58.4 mm (2.3 in)
2019-06-12Record daily precipitationRecord daily precipitation 61.0 mm (2.4 in)
2022-07-29Record high minimum temperatureRecord high minimum temperature 19.7 C (67.5 F)

Wettest Day of Each Month

Jun: 61.0 mm (2.4 in)
Record daily precipitation for each month at Summer Rim The wettest day on record for each calendar month at Summer Rim. The most was 61.0 mm (2.4 in) on 12 June 2019. 020406080 Jan: 40.6 mm (1.6 in), 10 January 2017 Jan Feb: 35.6 mm (1.4 in), 21 February 1982 Feb Mar: 45.7 mm (1.8 in), 30 March 1983 Mar Apr: 40.6 mm (1.6 in), 30 April 2002 Apr May: 58.4 mm (2.3 in), 20 May 2016 May Jun: 61.0 mm (2.4 in), 12 June 2019 Jun Jul: 48.3 mm (1.9 in), 17 July 1987 Jul Aug: 48.3 mm (1.9 in), 30 August 1984 Aug Sep: 25.4 mm (1.0 in), 23 September 2005 Sep Oct: 38.1 mm (1.5 in), 19 October 2007 Oct Nov: 50.8 mm (2.0 in), 15 November 1981 Nov Dec: 53.3 mm (2.1 in), 19 December 1981 Dec
The wettest day on record for each calendar month at Summer Rim. The most was 61.0 mm (2.4 in) on 12 June 2019.
Record daily precipitation for each month at Summer Rim
MonthRecord daily precipitation (mm)Date
Jan40.6 mm (1.6 in)10 January 2017
Feb35.6 mm (1.4 in)21 February 1982
Mar45.7 mm (1.8 in)30 March 1983
Apr40.6 mm (1.6 in)30 April 2002
May58.4 mm (2.3 in)20 May 2016
Jun61.0 mm (2.4 in)12 June 2019
Jul48.3 mm (1.9 in)17 July 1987
Aug48.3 mm (1.9 in)30 August 1984
Sep25.4 mm (1.0 in)23 September 2005
Oct38.1 mm (1.5 in)19 October 2007
Nov50.8 mm (2.0 in)15 November 1981
Dec53.3 mm (2.1 in)19 December 1981

Period of Record Coverage

1990 to 2026
Days with data per year at Summer Rim 37 years of record at Summer Rim, 1990 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1990, 2026. 1990: 61 of 365 days1991: 361 of 365 days1992: 362 of 366 days1993: 340 of 365 days1994: 351 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 364 of 365 days1998: 363 of 365 days1999: 363 of 365 days2000: 365 of 366 days2001: 364 of 365 days2002: 365 of 365 days2003: 363 of 365 days2004: 364 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 364 of 365 days2008: 366 of 366 days2009: 365 of 365 days2010: 364 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 364 of 365 days2014: 364 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 364 of 365 days2023: 364 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 286 of 365 days19901995200020052010201520202025
37 years of record at Summer Rim, 1990 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 1990, 2026.
Days with data per year at Summer Rim
YearDays with dataShare of yearComplete
19906117%No
199136199%Yes
199236299%Yes
199334093%Yes
199435196%Yes
1995365100%Yes
1996365100%Yes
1997364100%Yes
199836399%Yes
199936399%Yes
2000365100%Yes
2001364100%Yes
2002365100%Yes
200336399%Yes
200436499%Yes
2005365100%Yes
2006365100%Yes
2007364100%Yes
2008366100%Yes
2009365100%Yes
2010364100%Yes
2011365100%Yes
2012366100%Yes
2013364100%Yes
2014364100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022364100%Yes
2023364100%Yes
2024366100%Yes
2025365100%Yes
202628678%No

Latest Records

20
Latest records at Summer Rim
DateStationRecordValueBeat old record byOld record stoodSignificance
12 October 2026Summer Rim, USdaily low max (Provisional)1.8 C (35.2 F)0.9 C (1.6 F)0 years4 of 100 (Routine)
8 October 2026Summer Rim, USdaily high min (Provisional)14.0 C (57.2 F)3.1 C (5.6 F)4 years10 of 100 (Routine)
7 October 2026Summer Rim, USmonthly high min (Tie, Provisional)14.7 C (58.5 F)tie0 years3 of 100 (Routine)
6 October 2026Summer Rim, USdaily high min (Provisional)13.0 C (55.4 F)0.9 C (1.6 F)12 years7 of 100 (Routine)
5 October 2026Summer Rim, USdaily high min (Provisional)12.8 C (55.0 F)0.6 C (1.1 F)4 years5 of 100 (Routine)
4 October 2026Summer Rim, USdaily high max (Provisional)23.0 C (73.4 F)2.2 C (4.0 F)35 years16 of 100 (Routine)
4 October 2026Summer Rim, USmonthly high min (Provisional)14.7 C (58.5 F)0.6 C (1.1 F)6 years15 of 100 (Routine)
3 October 2026Summer Rim, USdaily high min (Provisional)12.0 C (53.6 F)0.3 C (0.5 F)5 years4 of 100 (Routine)
13 September 2026Summer Rim, USdaily low max (Provisional)7.7 C (45.9 F)2.8 C (5.0 F)21 years14 of 100 (Routine)
6 September 2026Summer Rim, USdaily low max (Provisional)7.1 C (44.8 F)1.7 C (3.1 F)33 years16 of 100 (Routine)
6 September 2026Summer Rim, USdaily rain (Provisional)7.6 mm (0.30 in)5.1 mm (0.20 in)8 years16 of 100 (Routine)
4 September 2026Summer Rim, USdaily rain (Tie, Provisional)5.1 mm (0.20 in)tie25 years2 of 100 (Routine)
3 September 2026Summer Rim, USdaily rain (Provisional)22.9 mm (0.9 in)15.3 mm (0.6 in)45 years20 of 100 (Routine)
3 September 2026Summer Rim, USdaily low max (Provisional)5.3 C (41.5 F)1.3 C (2.3 F)25 years12 of 100 (Routine)
21 August 2026Summer Rim, USdaily high min (Provisional)15.2 C (59.4 F)1.0 C (1.8 F)4 years6 of 100 (Routine)
7 August 2026Summer Rim, USdaily high min16.4 C (61.5 F)2.2 C (4.0 F)7 years10 of 100 (Routine)
6 August 2026Summer Rim, USdaily high min16.4 C (61.5 F)1.0 C (1.8 F)7 years7 of 100 (Routine)
5 August 2026Summer Rim, USdaily high min14.7 C (58.5 F)0.7 C (1.3 F)4 years5 of 100 (Routine)
18 June 2026Summer Rim, USdaily high min11.1 C (52.0 F)0.3 C (0.5 F)4 years4 of 100 (Routine)
17 June 2026Summer Rim, USdaily high min11.8 C (53.2 F)2.0 C (3.6 F)23 years13 of 100 (Routine)

Climate Trend

34 complete years, 1992 to 2025
Annual mean temperature at Summer Rim as warming stripes, 1992 to 2025 One stripe for each of 34 complete years at Summer Rim, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1993, at 3.3 C (37.9 F), and the warmest was 2015, at 6.8 C (44.2 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1992: 5.3 C, +0.2 C from the station mean1993: 3.3 C, -1.8 C from the station mean1994: 4.1 C, -1.0 C from the station mean1995: 4.3 C, -0.8 C from the station mean1996: 4.2 C, -0.9 C from the station mean1997: 4.0 C, -1.1 C from the station mean1998: 3.5 C, -1.6 C from the station mean1999: 3.9 C, -1.2 C from the station mean2000: 4.3 C, -0.8 C from the station mean2001: 4.6 C, -0.5 C from the station mean2002: 4.5 C, -0.6 C from the station mean2003: 4.8 C, -0.3 C from the station mean2004: 5.0 C, -0.1 C from the station mean2005: 5.3 C, +0.2 C from the station mean2006: 5.1 C, 0.0 C from the station mean2007: 5.3 C, +0.2 C from the station mean2008: 5.0 C, -0.1 C from the station mean2009: 5.2 C, +0.1 C from the station mean2010: 4.6 C, -0.5 C from the station mean2011: 4.4 C, -0.7 C from the station mean2012: 5.4 C, +0.3 C from the station mean2013: 5.6 C, +0.5 C from the station mean2014: 6.3 C, +1.2 C from the station mean2015: 6.8 C, +1.7 C from the station mean2016: 5.6 C, +0.5 C from the station mean2017: 5.8 C, +0.7 C from the station mean2018: 5.7 C, +0.6 C from the station mean2019: 5.2 C, +0.1 C from the station mean2020: 6.2 C, +1.1 C from the station mean2021: 6.1 C, +1.0 C from the station mean2022: 6.1 C, +1.0 C from the station mean2023: 5.3 C, +0.2 C from the station mean2024: 6.2 C, +1.1 C from the station mean2025: 6.5 C, +1.4 C from the station mean19921995200020052010201520202025
One stripe for each of 34 complete years at Summer Rim, 1992 to 2025. Blue stripes are years cooler than the station's own mean of 5.1 C (41.2 F); red stripes are warmer. The coolest year was 1993, at 3.3 C (37.9 F), and the warmest was 2015, at 6.8 C (44.2 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Summer Rim as warming stripes, 1992 to 2025
YearAnnual mean temperatureDifference from the station mean
19925.3 C+0.17 C
19933.3 C-1.80 C
19944.1 C-1.01 C
19954.3 C-0.84 C
19964.2 C-0.85 C
19974.0 C-1.13 C
19983.5 C-1.59 C
19993.9 C-1.20 C
20004.3 C-0.75 C
20014.6 C-0.47 C
20024.5 C-0.55 C
20034.8 C-0.27 C
20045.0 C-0.12 C
20055.3 C+0.22 C
20065.1 C-0.01 C
20075.3 C+0.16 C
20085.0 C-0.14 C
20095.2 C+0.07 C
20104.6 C-0.50 C
20114.4 C-0.65 C
20125.4 C+0.29 C
20135.6 C+0.49 C
20146.3 C+1.24 C
20156.8 C+1.69 C
20165.6 C+0.47 C
20175.8 C+0.69 C
20185.7 C+0.63 C
20195.2 C+0.08 C
20206.2 C+1.08 C
20216.1 C+1.02 C
20226.1 C+1.01 C
20235.3 C+0.25 C
20246.2 C+1.07 C
20256.5 C+1.40 C

The annual mean temperature here has risen by 0.7 C (0.5 to 0.9) per decade over 1992 to 2025. In Fahrenheit: 1.3 F (1.0 to 1.6) 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 Summer Rim
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.7 C (0.5 to 0.9) per decade1.3 F (1.0 to 1.6) per decade1992 to 202534Rise
Mean daily maximum0.1 C (-0.1 to 0.3) per decade0.2 F (-0.2 to 0.6) per decade1992 to 202534Not clearly different from zero
Mean daily minimum1.3 C (1.1 to 1.5) per decade2.4 F (2.0 to 2.7) per decade1992 to 202534Rise

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

1978 to 2026
Yearly extremes at Summer Rim: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)34.8 C (94.6 F)200329.3 C (84.7 F)37
Coldest night (TNn)-31.7 C (-25.1 F)1990-17.1 C (1.2 F)37
Wettest day (Rx1day)61.0 mm (2.4 in)201933.0 mm (1.3 in)49
Wettest five days (Rx5day)116.8 mm (4.6 in)198371.1 mm (2.8 in)49
Longest dry spell (CDD)104 days201843 days49

Hottest day (TXx)

Hottest day (TXx) at Summer Rim by year The hottest day of the year at Summer Rim, 1978 to 2026. The record is 34.8 C (94.6 F) in 2003, marked on the chart; the median year is 29.3 C (84.7 F). 152025303519801990200020102020Record: 34.8 C (94.6 F) in 2003
The hottest day of the year at Summer Rim, 1978 to 2026. The record is 34.8 C (94.6 F) in 2003, marked on the chart; the median year is 29.3 C (84.7 F).
Hottest day (TXx) at Summer Rim by year
YearHottest day (TXx)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
199015.6 C (60.1 F)
199128.5 C (83.3 F)
199231.0 C (87.8 F)
199326.8 C (80.2 F)
199429.3 C (84.7 F)
199528.5 C (83.3 F)
199630.8 C (87.4 F)
199730.3 C (86.5 F)
199830.8 C (87.4 F)
199929.9 C (85.8 F)
200029.3 C (84.7 F)
200130.6 C (87.1 F)
200234.0 C (93.2 F)
200334.8 C (94.6 F)
200429.9 C (85.8 F)
200530.2 C (86.4 F)
200629.5 C (85.1 F)
200731.5 C (88.7 F)
200829.6 C (85.3 F)
200928.7 C (83.7 F)
201028.4 C (83.1 F)
201126.8 C (80.2 F)
201228.3 C (82.9 F)
201328.5 C (83.3 F)
201428.4 C (83.1 F)
201528.0 C (82.4 F)
201628.3 C (82.9 F)
201729.5 C (85.1 F)
201831.1 C (88.0 F)
201925.9 C (78.6 F)
202029.5 C (85.1 F)
202131.3 C (88.3 F)
202229.0 C (84.2 F)
202328.8 C (83.8 F)
202430.2 C (86.4 F)
202527.7 C (81.9 F)
202627.8 C (82.0 F)

Coldest night (TNn)

Coldest night (TNn) at Summer Rim by year The coldest night of the year at Summer Rim, 1978 to 2026. The record is -31.7 C (-25.1 F) in 1990, marked on the chart; the median year is -17.1 C (1.2 F). -40-30-20-1019801990200020102020Record: -31.7 C (-25.1 F) in 1990
The coldest night of the year at Summer Rim, 1978 to 2026. The record is -31.7 C (-25.1 F) in 1990, marked on the chart; the median year is -17.1 C (1.2 F).
Coldest night (TNn) at Summer Rim by year
YearColdest night (TNn)
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990-31.7 C (-25.1 F)
1991-13.7 C (7.3 F)
1992-15.7 C (3.7 F)
1993-22.4 C (-8.3 F)
1994-18.4 C (-1.1 F)
1995-14.2 C (6.4 F)
1996-17.0 C (1.4 F)
1997-22.2 C (-8.0 F)
1998-26.3 C (-15.3 F)
1999-17.1 C (1.2 F)
2000-13.5 C (7.7 F)
2001-16.1 C (3.0 F)
2002-18.3 C (-0.9 F)
2003-17.6 C (0.3 F)
2004-13.3 C (8.1 F)
2005-13.6 C (7.5 F)
2006-19.2 C (-2.6 F)
2007-19.9 C (-3.8 F)
2008-18.8 C (-1.8 F)
2009-21.2 C (-6.2 F)
2010-18.1 C (-0.6 F)
2011-19.8 C (-3.6 F)
2012-14.7 C (5.5 F)
2013-20.7 C (-5.3 F)
2014-16.3 C (2.7 F)
2015-15.8 C (3.6 F)
2016-16.4 C (2.5 F)
2017-19.1 C (-2.4 F)
2018-17.1 C (1.2 F)
2019-15.1 C (4.8 F)
2020-14.6 C (5.7 F)
2021-13.3 C (8.1 F)
2022-19.5 C (-3.1 F)
2023-18.4 C (-1.1 F)
2024-11.2 C (11.8 F)
2025-14.5 C (5.9 F)
2026-11.6 C (11.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Summer Rim by year The wettest day of the year at Summer Rim, 1978 to 2026. The record is 61.0 mm (2.4 in) in 2019, marked on the chart; the median year is 33.0 mm (1.3 in). 02040608019801990200020102020Record: 61.0 mm (2.4 in) in 2019
The wettest day of the year at Summer Rim, 1978 to 2026. The record is 61.0 mm (2.4 in) in 2019, marked on the chart; the median year is 33.0 mm (1.3 in).
Wettest day (Rx1day) at Summer Rim by year
YearWettest day (Rx1day)
197810.2 mm (0.4 in)
197930.5 mm (1.2 in)
198035.6 mm (1.4 in)
198153.3 mm (2.1 in)
198235.6 mm (1.4 in)
198345.7 mm (1.8 in)
198448.3 mm (1.9 in)
198525.4 mm (1.0 in)
198627.9 mm (1.1 in)
198748.3 mm (1.9 in)
198833.0 mm (1.3 in)
198927.9 mm (1.1 in)
199022.9 mm (0.9 in)
199122.9 mm (0.9 in)
199230.5 mm (1.2 in)
199325.4 mm (1.0 in)
199417.8 mm (0.7 in)
199527.9 mm (1.1 in)
199650.8 mm (2.0 in)
199730.5 mm (1.2 in)
199840.6 mm (1.6 in)
199933.0 mm (1.3 in)
200033.0 mm (1.3 in)
200127.9 mm (1.1 in)
200240.6 mm (1.6 in)
200335.6 mm (1.4 in)
200440.6 mm (1.6 in)
200535.6 mm (1.4 in)
200625.4 mm (1.0 in)
200738.1 mm (1.5 in)
200833.0 mm (1.3 in)
200938.1 mm (1.5 in)
201038.1 mm (1.5 in)
201127.9 mm (1.1 in)
201235.6 mm (1.4 in)
201333.0 mm (1.3 in)
201427.9 mm (1.1 in)
201527.9 mm (1.1 in)
201658.4 mm (2.3 in)
201740.6 mm (1.6 in)
201835.6 mm (1.4 in)
201961.0 mm (2.4 in)
202022.9 mm (0.9 in)
202127.9 mm (1.1 in)
202217.8 mm (0.7 in)
202325.4 mm (1.0 in)
202425.4 mm (1.0 in)
202530.5 mm (1.2 in)
202633.0 mm (1.3 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Summer Rim by year The wettest five days of the year at Summer Rim, 1978 to 2026. The record is 116.8 mm (4.6 in) in 1983, marked on the chart; the median year is 71.1 mm (2.8 in). 05010015019801990200020102020Record: 116.8 mm (4.6 in) in 1983
The wettest five days of the year at Summer Rim, 1978 to 2026. The record is 116.8 mm (4.6 in) in 1983, marked on the chart; the median year is 71.1 mm (2.8 in).
Wettest five days (Rx5day) at Summer Rim by year
YearWettest five days (Rx5day)
197815.2 mm (0.6 in)
197968.6 mm (2.7 in)
198086.3 mm (3.4 in)
1981106.7 mm (4.2 in)
198291.5 mm (3.6 in)
1983116.8 mm (4.6 in)
198461.0 mm (2.4 in)
198578.7 mm (3.1 in)
198658.4 mm (2.3 in)
1987104.2 mm (4.1 in)
198860.9 mm (2.4 in)
198963.5 mm (2.5 in)
199055.9 mm (2.2 in)
199153.4 mm (2.1 in)
199258.4 mm (2.3 in)
199366.0 mm (2.6 in)
199438.0 mm (1.5 in)
199588.8 mm (3.5 in)
1996101.6 mm (4.0 in)
1997109.1 mm (4.3 in)
199886.4 mm (3.4 in)
199981.2 mm (3.2 in)
200088.8 mm (3.5 in)
200166.0 mm (2.6 in)
200288.8 mm (3.5 in)
200363.5 mm (2.5 in)
200496.5 mm (3.8 in)
200594.1 mm (3.7 in)
200671.1 mm (2.8 in)
200773.7 mm (2.9 in)
200871.2 mm (2.8 in)
200955.8 mm (2.2 in)
201055.9 mm (2.2 in)
201171.2 mm (2.8 in)
201291.5 mm (3.6 in)
201343.1 mm (1.7 in)
201471.1 mm (2.8 in)
201573.6 mm (2.9 in)
201693.9 mm (3.7 in)
201798.9 mm (3.9 in)
201848.3 mm (1.9 in)
201971.1 mm (2.8 in)
202050.8 mm (2.0 in)
202153.2 mm (2.1 in)
202250.7 mm (2.0 in)
202353.4 mm (2.1 in)
202473.6 mm (2.9 in)
202599.1 mm (3.9 in)
202663.4 mm (2.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Summer Rim by year The longest dry spell of the year at Summer Rim, 1978 to 2026. The record is 104 days in 2018, marked on the chart; the median year is 43 days. 025507510012519801990200020102020Record: 104 days in 2018
The longest dry spell of the year at Summer Rim, 1978 to 2026. The record is 104 days in 2018, marked on the chart; the median year is 43 days.
Longest dry spell (CDD) at Summer Rim by year
YearLongest dry spell (CDD)
197850 days
197966 days
198042 days
198152 days
198233 days
198311 days
198483 days
198567 days
198677 days
198743 days
198839 days
198933 days
199020 days
199139 days
199251 days
199332 days
199446 days
199575 days
199636 days
199724 days
199837 days
199935 days
200057 days
200118 days
200240 days
200371 days
200438 days
200539 days
200636 days
200731 days
200847 days
200952 days
201084 days
201163 days
201268 days
201330 days
201445 days
201532 days
201675 days
201743 days
2018104 days
201955 days
2020100 days
202179 days
202244 days
202353 days
202435 days
202533 days
202643 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.

Frost Dates and Growing Season

34 years with a frost

Across 34 years with a frost, the median last spring frost at Summer Rim falls on 20 June and the median first autumn frost on 6 September, which leaves a median of 79 days between them.

Fitted over all years, the growing season changes by +30.9 days per decade at this station.

Frost dates and growing season at Summer Rim
MeasureMedian, all yearsEarliest periodRecent period (1996 to 2025)Recent against earliestFitted trend
Last spring frost20 Junen/a19 Junen/a-3.7 days per decade
First autumn frost6 Septembern/a8 Septembern/a+27.2 days per decade
Growing days79 daysn/a83 daysn/a+30.9 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

47 years, 1979 to 2025

A day with at least 32.2 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 66.4 mm (2.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Summer Rim: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years32.2 mm (1.3 in)
5 years41.0 mm (1.6 in)
10 years46.9 mm (1.8 in)
25 years54.6 mm (2.1 in)
50 years60.5 mm (2.4 in)Longer than the 47 years of record
100 years66.4 mm (2.6 in)Longer than the 47 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, 47 years of values from 1979 to 2025.

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: 61.0 mm (2.4 in) in 2019; 58.4 mm (2.3 in) in 2016; 53.3 mm (2.1 in) in 1981.

Download the Data

  • Data for Summer Rim standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Summer Rim 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-16).