Built 2026-10-17 (17 October 2026)

Ephraim Weather Records (USC00422578)

Record envelope, standing records and threshold days for Ephraim (USC00422578), Utah, United States, with 78 years of record.

Key Facts for Ephraim

  • Ephraim (USC00422578) is a weather station in Utah, United States at 39.36 latitude and -111.60 longitude, 1,676 m (5,498 ft) above sea level.
  • The station reports from 1949 to 2026, 78 years of record.
  • 1,464 records set at Ephraim still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Ephraim set a daily record precipitation of 8.9 mm (0.35 in) on 30 August 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Utah, United States, 39.36 latitude, -111.60 longitude.
  • Elevation: 1,676 m (5,498 ft).
  • Period of record: 1949 to 2026, 78 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

27 days at or beyond a record
Daily record high and record low at Ephraim, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ephraim. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Ephraim. The lines show the 2026 daily maximum and minimum. 27 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Ephraim, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan16.7 C (62.1 F)-33.3 C (-27.9 F)13.9 C (57.0 F)-16.7 C (1.9 F)
Feb21.1 C (70.0 F)-30.0 C (-22.0 F)17.8 C (64.0 F)-16.7 C (1.9 F)
Mar31.1 C (88.0 F)-22.8 C (-9.0 F)31.1 C (88.0 F)-10.0 C (14.0 F)
Apr31.1 C (88.0 F)-12.8 C (9.0 F)26.7 C (80.1 F)-10.0 C (14.0 F)
May37.2 C (99.0 F)-7.8 C (18.0 F)33.9 C (93.0 F)-2.8 C (27.0 F)
Jun38.9 C (102.0 F)-3.3 C (26.1 F)36.1 C (97.0 F)1.7 C (35.1 F)
Jul42.2 C (108.0 F)1.1 C (34.0 F)41.1 C (106.0 F)5.0 C (41.0 F)
Aug40.0 C (104.0 F)-1.7 C (28.9 F)38.9 C (102.0 F)7.2 C (45.0 F)
Sep38.3 C (100.9 F)-8.9 C (16.0 F)n/an/a
Oct32.2 C (90.0 F)-17.8 C (0.0 F)n/an/a
Nov24.4 C (75.9 F)-28.3 C (-18.9 F)n/an/a
Dec18.9 C (66.0 F)-36.7 C (-34.1 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ephraim by the year they were set 1,464 records at Ephraim still stand. 2001 holds the most, with 45. 02040601950: 241951: 151952: 121953: 131954: 141955: 411956: 241957: 151958: 121959: 161960: 131961: 141962: 281963: 231964: 301965: 201966: 151967: 181968: 161969: 181970: 191971: 181972: 221973: 151974: 91975: 271976: 151977: 221978: 191979: 171980: 141981: 231982: 121983: 121984: 141985: 171986: 161987: 101988: 151989: 221990: 201991: 81992: 181993: 91994: 181995: 231996: 301997: 121998: 241999: 292000: 282001: 452002: 272003: 312004: 312005: 192006: 122007: 112008: 222009: 242010: 202011: 182012: 162013: 232014: 62015: 192016: 132017: 212018: 122019: 192020: 272021: 182022: 262023: 92024: 92025: 232026: 251950195819661974198219901998200620142022
1,464 records at Ephraim still stand. 2001 holds the most, with 45.
Standing records at Ephraim by the year they were set
Year setStanding records
195024
195115
195212
195313
195414
195541
195624
195715
195812
195916
196013
196114
196228
196323
196430
196520
196615
196718
196816
196918
197019
197118
197222
197315
19749
197527
197615
197722
197819
197917
198014
198123
198212
198312
198414
198517
198616
198710
198815
198922
199020
19918
199218
19939
199418
199523
199630
199712
199824
199929
200028
200145
200227
200331
200431
200519
200612
200711
200822
200924
201020
201118
201216
201323
20146
201519
201613
201721
201812
201919
202027
202118
202226
20239
20249
202523
202625

All-Time Record Progression

8 new records
When Ephraim set new all-time records 8 all-time records were set at Ephraim between 7 January 1982 and 21 December 2010. Each dot is a new record. Record low minimum temperatureRecord high maximum temperatureRecord daily snowfall7 January 1982: Record low minimum temperature -33.3 C (-27.9 F)23 December 1990: Record low minimum temperature -36.7 C (-34.1 F)15 July 1998: Record high maximum temperature 41.1 C (106.0 F)17 July 1998: Record high maximum temperature 41.7 C (107.1 F)18 July 1998: Record high maximum temperature 42.2 C (108.0 F)8 December 2009: Record daily snowfall 21.1 cm (8.3 in)23 December 2009: Record daily snowfall 21.6 cm (8.5 in)21 December 2010: Record daily snowfall 40.6 cm (16.0 in)198519901995200020052010
8 all-time records were set at Ephraim between 7 January 1982 and 21 December 2010. Each dot is a new record.
When Ephraim set new all-time records
DateKindDetail
1982-01-07Record low minimum temperatureRecord low minimum temperature -33.3 C (-27.9 F)
1990-12-23Record low minimum temperatureRecord low minimum temperature -36.7 C (-34.1 F)
1998-07-15Record high maximum temperatureRecord high maximum temperature 41.1 C (106.0 F)
1998-07-17Record high maximum temperatureRecord high maximum temperature 41.7 C (107.1 F)
1998-07-18Record high maximum temperatureRecord high maximum temperature 42.2 C (108.0 F)
2009-12-08Record daily snowfallRecord daily snowfall 21.1 cm (8.3 in)
2009-12-23Record daily snowfallRecord daily snowfall 21.6 cm (8.5 in)
2010-12-21Record daily snowfallRecord daily snowfall 40.6 cm (16.0 in)

Wettest Day of Each Month

Dec: 56.1 mm (2.2 in)
Record daily precipitation for each month at Ephraim The wettest day on record for each calendar month at Ephraim. The most was 56.1 mm (2.2 in) on 6 December 1966. 0204060 Jan: 27.9 mm (1.1 in), 25 January 2000 Jan Feb: 36.8 mm (1.4 in), 18 February 1980 Feb Mar: 24.1 mm (0.9 in), 28 March 1993 Mar Apr: 22.9 mm (0.9 in), 16 April 2013 Apr May: 30.0 mm (1.2 in), 7 May 1964 May Jun: 48.8 mm (1.9 in), 10 June 1970 Jun Jul: 27.4 mm (1.1 in), 15 July 1953 Jul Aug: 29.2 mm (1.1 in), 8 August 2019 Aug Sep: 27.9 mm (1.1 in), 29 September 1982 Sep Oct: 26.7 mm (1.1 in), 18 October 2024 Oct Nov: 26.7 mm (1.1 in), 21 November 1996 Nov Dec: 56.1 mm (2.2 in), 6 December 1966 Dec
The wettest day on record for each calendar month at Ephraim. The most was 56.1 mm (2.2 in) on 6 December 1966.
Record daily precipitation for each month at Ephraim
MonthRecord daily precipitation (mm)Date
Jan27.9 mm (1.1 in)25 January 2000
Feb36.8 mm (1.4 in)18 February 1980
Mar24.1 mm (0.9 in)28 March 1993
Apr22.9 mm (0.9 in)16 April 2013
May30.0 mm (1.2 in)7 May 1964
Jun48.8 mm (1.9 in)10 June 1970
Jul27.4 mm (1.1 in)15 July 1953
Aug29.2 mm (1.1 in)8 August 2019
Sep27.9 mm (1.1 in)29 September 1982
Oct26.7 mm (1.1 in)18 October 2024
Nov26.7 mm (1.1 in)21 November 1996
Dec56.1 mm (2.2 in)6 December 1966

Period of Record Coverage

1950 to 2026
Days with data per year at Ephraim 77 years of record at Ephraim, 1950 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1973, 2008, 2026. 1950: 334 of 365 days1951: 357 of 365 days1952: 356 of 366 days1953: 365 of 365 days1954: 364 of 365 days1955: 362 of 365 days1956: 361 of 366 days1957: 363 of 365 days1958: 364 of 365 days1959: 355 of 365 days1960: 354 of 366 days1961: 365 of 365 days1962: 348 of 365 days1963: 357 of 365 days1964: 342 of 366 days1965: 365 of 365 days1966: 361 of 365 days1967: 357 of 365 days1968: 360 of 366 days1969: 354 of 365 days1970: 348 of 365 days1971: 362 of 365 days1972: 344 of 366 days1973: 327 of 365 days1974: 358 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 355 of 365 days1979: 365 of 365 days1980: 360 of 366 days1981: 363 of 365 days1982: 355 of 365 days1983: 363 of 365 days1984: 362 of 366 days1985: 364 of 365 days1986: 364 of 365 days1987: 365 of 365 days1988: 358 of 366 days1989: 364 of 365 days1990: 358 of 365 days1991: 365 of 365 days1992: 365 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 365 of 366 days1997: 364 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 335 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 363 of 365 days2006: 365 of 365 days2007: 360 of 365 days2008: 317 of 366 days2009: 350 of 365 days2010: 365 of 365 days2011: 363 of 365 days2012: 355 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 344 of 365 days2016: 363 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 359 of 365 days2020: 366 of 366 days2021: 346 of 365 days2022: 355 of 365 days2023: 365 of 365 days2024: 365 of 366 days2025: 363 of 365 days2026: 241 of 365 days19501960197019801990200020102020
77 years of record at Ephraim, 1950 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1973, 2008, 2026.
Days with data per year at Ephraim
YearDays with dataShare of yearComplete
195033492%Yes
195135798%Yes
195235697%Yes
1953365100%Yes
1954364100%Yes
195536299%Yes
195636199%Yes
195736399%Yes
1958364100%Yes
195935597%Yes
196035497%Yes
1961365100%Yes
196234895%Yes
196335798%Yes
196434293%Yes
1965365100%Yes
196636199%Yes
196735798%Yes
196836098%Yes
196935497%Yes
197034895%Yes
197136299%Yes
197234494%Yes
197332790%No
197435898%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
197835597%Yes
1979365100%Yes
198036098%Yes
198136399%Yes
198235597%Yes
198336399%Yes
198436299%Yes
1985364100%Yes
1986364100%Yes
1987365100%Yes
198835898%Yes
1989364100%Yes
199035898%Yes
1991365100%Yes
1992365100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996365100%Yes
1997364100%Yes
1998365100%Yes
1999365100%Yes
200033592%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004365100%Yes
200536399%Yes
2006365100%Yes
200736099%Yes
200831787%No
200935096%Yes
2010365100%Yes
201136399%Yes
201235597%Yes
2013365100%Yes
2014365100%Yes
201534494%Yes
201636399%Yes
2017365100%Yes
2018364100%Yes
201935998%Yes
2020366100%Yes
202134695%Yes
202235597%Yes
2023365100%Yes
2024365100%Yes
202536399%Yes
202624166%No

Latest Records

20
Latest records at Ephraim
DateStationRecordValueBeat old record byOld record stoodSignificance
30 August 2026Ephraim, USdaily rain (Provisional)8.9 mm (0.35 in)3.8 mm (0.15 in)27 years20 of 100 (Routine)
21 August 2026Ephraim, USdaily high min (Provisional)17.2 C (63.0 F)0.5 C (0.9 F)68 years28 of 100 (Routine)
10 August 2026Ephraim, USdaily high max (Tie)36.1 C (97.0 F)tie53 years5 of 100 (Routine)
7 August 2026Ephraim, USdaily high max (Tie)38.9 C (102.0 F)tie24 years3 of 100 (Routine)
1 August 2026Ephraim, USdaily high max38.3 C (100.9 F)0.5 C (0.9 F)36 years18 of 100 (Routine)
29 July 2026Ephraim, USdaily low max (Tie)25.6 C (78.1 F)tie51 years5 of 100 (Routine)
27 July 2026Ephraim, USdaily high max38.3 C (100.9 F)0.5 C (0.9 F)32 years17 of 100 (Routine)
26 July 2026Ephraim, USdaily high min (Tie)18.3 C (64.9 F)tie60 years6 of 100 (Routine)
25 July 2026Ephraim, USdaily high max38.9 C (102.0 F)1.1 C (2.0 F)32 years19 of 100 (Routine)
24 July 2026Ephraim, USdaily high max38.3 C (100.9 F)0.5 C (0.9 F)23 years14 of 100 (Routine)
21 July 2026Ephraim, USdaily high min17.8 C (64.0 F)0.6 C (1.1 F)33 years19 of 100 (Routine)
20 July 2026Ephraim, USdaily high min19.4 C (66.9 F)1.1 C (2.0 F)43 years22 of 100 (Routine)
12 July 2026Ephraim, USdaily high min18.9 C (66.0 F)1.1 C (2.0 F)45 years23 of 100 (Routine)
12 July 2026Ephraim, USdaily high max41.1 C (106.0 F)0.5 C (0.9 F)24 years15 of 100 (Routine)
11 July 2026Ephraim, USdaily high max40.6 C (105.1 F)0.6 C (1.1 F)24 years15 of 100 (Routine)
28 June 2026Ephraim, USdaily low min3.9 C (39.0 F)1.1 C (2.0 F)12 years13 of 100 (Routine)
26 May 2026Ephraim, USdaily high min12.2 C (54.0 F)0.5 C (0.9 F)28 years16 of 100 (Routine)
18 May 2026Ephraim, USdaily rain (Tie)8.4 mm (0.33 in)tie15 years2 of 100 (Routine)
12 May 2026Ephraim, USdaily high max33.9 C (93.0 F)2.2 C (4.0 F)29 years18 of 100 (Routine)
11 May 2026Ephraim, USdaily high max32.8 C (91.0 F)0.6 C (1.1 F)24 years15 of 100 (Routine)

Climate Trend

69 complete years, 1951 to 2025
Annual mean temperature at Ephraim as warming stripes, 1951 to 2025 One stripe for each of 69 complete years at Ephraim, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 2011, at 6.6 C (43.8 F), and the warmest was 2003, at 10.6 C (51.1 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1951: 7.8 C, -0.8 C from the station mean1952: 7.7 C, -0.8 C from the station mean1953: 8.4 C, -0.2 C from the station mean1954: 9.2 C, +0.7 C from the station mean1955: 7.4 C, -1.2 C from the station mean1956: 8.6 C, 0.0 C from the station mean1957: 8.4 C, -0.2 C from the station mean1958: 9.5 C, +0.9 C from the station mean1959: 9.2 C, +0.6 C from the station mean1960: 8.8 C, +0.2 C from the station mean1961: 8.3 C, -0.3 C from the station mean1962: 8.4 C, -0.2 C from the station mean1963: 8.4 C, -0.1 C from the station mean1964: 6.9 C, -1.7 C from the station mean1965: 8.3 C, -0.3 C from the station mean1966: 8.8 C, +0.2 C from the station mean1967: 8.0 C, -0.6 C from the station mean1968: 7.5 C, -1.0 C from the station mean1969: 8.6 C, 0.0 C from the station mean1970: 8.2 C, -0.4 C from the station mean1971: 7.9 C, -0.6 C from the station mean1972: 9.0 C, +0.4 C from the station mean1974: 8.2 C, -0.4 C from the station mean1975: 7.1 C, -1.5 C from the station mean1976: 8.9 C, +0.3 C from the station mean1977: 9.3 C, +0.7 C from the station mean1978: 8.3 C, -0.3 C from the station mean1979: 7.9 C, -0.7 C from the station mean1980: 9.2 C, +0.6 C from the station mean1981: 10.2 C, +1.6 C from the station mean1982: 7.2 C, -1.4 C from the station mean1983: 8.1 C, -0.4 C from the station mean1984: 7.4 C, -1.2 C from the station mean1985: 8.3 C, -0.3 C from the station mean1986: 9.8 C, +1.2 C from the station mean1987: 9.2 C, +0.6 C from the station mean1988: 8.6 C, 0.0 C from the station mean1989: 8.9 C, +0.3 C from the station mean1990: 9.4 C, +0.9 C from the station mean1991: 8.5 C, -0.1 C from the station mean1992: 9.8 C, +1.2 C from the station mean1993: 8.0 C, -0.6 C from the station mean1994: 10.0 C, +1.4 C from the station mean1995: 9.3 C, +0.7 C from the station mean1996: 9.5 C, +0.9 C from the station mean1997: 8.6 C, 0.0 C from the station mean1998: 9.1 C, +0.5 C from the station mean1999: 9.8 C, +1.2 C from the station mean2001: 10.0 C, +1.4 C from the station mean2002: 9.2 C, +0.7 C from the station mean2003: 10.6 C, +2.0 C from the station mean2004: 8.9 C, +0.3 C from the station mean2005: 9.4 C, +0.9 C from the station mean2006: 7.8 C, -0.7 C from the station mean2007: 7.6 C, -1.0 C from the station mean2009: 7.1 C, -1.5 C from the station mean2010: 7.3 C, -1.2 C from the station mean2011: 6.6 C, -2.0 C from the station mean2012: 9.2 C, +0.6 C from the station mean2013: 6.8 C, -1.8 C from the station mean2014: 8.7 C, +0.2 C from the station mean2016: 8.7 C, +0.1 C from the station mean2017: 9.1 C, +0.6 C from the station mean2018: 9.2 C, +0.6 C from the station mean2019: 7.7 C, -0.9 C from the station mean2020: 8.6 C, 0.0 C from the station mean2023: 7.9 C, -0.7 C from the station mean2024: 9.7 C, +1.1 C from the station mean2025: 10.1 C, +1.5 C from the station mean19511960197019801990200020102020
One stripe for each of 69 complete years at Ephraim, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 8.6 C (47.4 F); red stripes are warmer. The coolest year was 2011, at 6.6 C (43.8 F), and the warmest was 2003, at 10.6 C (51.1 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Ephraim as warming stripes, 1951 to 2025
YearAnnual mean temperatureDifference from the station mean
19517.8 C-0.77 C
19527.7 C-0.84 C
19538.4 C-0.22 C
19549.2 C+0.66 C
19557.4 C-1.22 C
19568.6 C-0.01 C
19578.4 C-0.22 C
19589.5 C+0.94 C
19599.2 C+0.59 C
19608.8 C+0.18 C
19618.3 C-0.32 C
19628.4 C-0.21 C
19638.4 C-0.14 C
19646.9 C-1.73 C
19658.3 C-0.31 C
19668.8 C+0.24 C
19678.0 C-0.58 C
19687.5 C-1.04 C
19698.6 C+0.01 C
19708.2 C-0.37 C
19717.9 C-0.64 C
19729.0 C+0.37 C
19748.2 C-0.37 C
19757.1 C-1.48 C
19768.9 C+0.32 C
19779.3 C+0.74 C
19788.3 C-0.26 C
19797.9 C-0.69 C
19809.2 C+0.64 C
198110.2 C+1.60 C
19827.2 C-1.37 C
19838.1 C-0.44 C
19847.4 C-1.17 C
19858.3 C-0.32 C
19869.8 C+1.24 C
19879.2 C+0.60 C
19888.6 C-0.02 C
19898.9 C+0.31 C
19909.4 C+0.86 C
19918.5 C-0.09 C
19929.8 C+1.18 C
19938.0 C-0.57 C
199410.0 C+1.37 C
19959.3 C+0.69 C
19969.5 C+0.89 C
19978.6 C-0.02 C
19989.1 C+0.50 C
19999.8 C+1.20 C
200110.0 C+1.38 C
20029.2 C+0.66 C
200310.6 C+2.04 C
20048.9 C+0.29 C
20059.4 C+0.85 C
20067.8 C-0.74 C
20077.6 C-1.03 C
20097.1 C-1.53 C
20107.3 C-1.25 C
20116.6 C-2.00 C
20129.2 C+0.63 C
20136.8 C-1.81 C
20148.7 C+0.15 C
20168.7 C+0.13 C
20179.1 C+0.55 C
20189.2 C+0.64 C
20197.7 C-0.93 C
20208.6 C-0.03 C
20237.9 C-0.68 C
20249.7 C+1.14 C
202510.1 C+1.50 C

The fitted trend in annual mean temperature here over 1951 to 2025 is 0.06 C (-0.04 to 0.17) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 69 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ephraim
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.06 C (-0.04 to 0.17) per decade0.1 F (-0.1 to 0.3) per decade1951 to 202569Not clearly different from zero
Mean daily maximum0.3 C (0.2 to 0.5) per decade0.6 F (0.4 to 0.8) per decade1951 to 202569Rise
Mean daily minimum-0.2 C (-0.3 to -0.1) per decade-0.4 F (-0.5 to -0.2) per decade1951 to 202569Fall

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

1949 to 2026
Yearly extremes at Ephraim: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)42.2 C (108.0 F)199836.7 C (98.1 F)77
Coldest night (TNn)-36.7 C (-34.1 F)1990-23.9 C (-11.0 F)77
Wettest day (Rx1day)56.1 mm (2.2 in)196620.3 mm (0.8 in)78
Wettest five days (Rx5day)75.7 mm (3.0 in)196632.1 mm (1.3 in)78
Longest dry spell (CDD)80 days201236 days78

Hottest day (TXx)

Hottest day (TXx) at Ephraim by year The hottest day of the year at Ephraim, 1949 to 2026. The record is 42.2 C (108.0 F) in 1998, marked on the chart; the median year is 36.7 C (98.1 F). 32.53537.54042.51960198020002020Record: 42.2 C (108.0 F) in 1998
The hottest day of the year at Ephraim, 1949 to 2026. The record is 42.2 C (108.0 F) in 1998, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Ephraim by year
YearHottest day (TXx)
1949n/a
195035.0 C (95.0 F)
195135.6 C (96.1 F)
195235.0 C (95.0 F)
195336.7 C (98.1 F)
195437.8 C (100.0 F)
195536.1 C (97.0 F)
195635.6 C (96.1 F)
195735.0 C (95.0 F)
195836.7 C (98.1 F)
195937.2 C (99.0 F)
196040.0 C (104.0 F)
196136.7 C (98.1 F)
196235.0 C (95.0 F)
196335.0 C (95.0 F)
196436.1 C (97.0 F)
196534.4 C (93.9 F)
196636.7 C (98.1 F)
196735.6 C (96.1 F)
196833.9 C (93.0 F)
196935.0 C (95.0 F)
197035.6 C (96.1 F)
197136.7 C (98.1 F)
197236.1 C (97.0 F)
197336.7 C (98.1 F)
197436.7 C (98.1 F)
197534.4 C (93.9 F)
197638.3 C (100.9 F)
197735.0 C (95.0 F)
197836.7 C (98.1 F)
197937.8 C (100.0 F)
198035.0 C (95.0 F)
198137.8 C (100.0 F)
198234.4 C (93.9 F)
198336.7 C (98.1 F)
198435.6 C (96.1 F)
198537.8 C (100.0 F)
198636.1 C (97.0 F)
198735.6 C (96.1 F)
198836.1 C (97.0 F)
198938.9 C (102.0 F)
199037.8 C (100.0 F)
199137.8 C (100.0 F)
199238.3 C (100.9 F)
199335.6 C (96.1 F)
199438.3 C (100.9 F)
199538.3 C (100.9 F)
199638.9 C (102.0 F)
199737.8 C (100.0 F)
199842.2 C (108.0 F)
199940.6 C (105.1 F)
200041.7 C (107.1 F)
200141.1 C (106.0 F)
200241.1 C (106.0 F)
200340.0 C (104.0 F)
200437.2 C (99.0 F)
200540.6 C (105.1 F)
200636.7 C (98.1 F)
200736.7 C (98.1 F)
200835.0 C (95.0 F)
200937.8 C (100.0 F)
201035.6 C (96.1 F)
201135.0 C (95.0 F)
201237.8 C (100.0 F)
201338.3 C (100.9 F)
201436.7 C (98.1 F)
201538.3 C (100.9 F)
201638.3 C (100.9 F)
201737.2 C (99.0 F)
201838.3 C (100.9 F)
201935.6 C (96.1 F)
202038.3 C (100.9 F)
202138.9 C (102.0 F)
202238.3 C (100.9 F)
202339.4 C (102.9 F)
202439.4 C (102.9 F)
202538.3 C (100.9 F)
202641.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Ephraim by year The coldest night of the year at Ephraim, 1949 to 2026. The record is -36.7 C (-34.1 F) in 1990, marked on the chart; the median year is -23.9 C (-11.0 F). -40-30-20-101960198020002020Record: -36.7 C (-34.1 F) in 1990
The coldest night of the year at Ephraim, 1949 to 2026. The record is -36.7 C (-34.1 F) in 1990, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Ephraim by year
YearColdest night (TNn)
1949n/a
1950-25.6 C (-14.1 F)
1951-27.8 C (-18.0 F)
1952-23.9 C (-11.0 F)
1953-20.0 C (-4.0 F)
1954-18.9 C (-2.0 F)
1955-23.3 C (-9.9 F)
1956-22.8 C (-9.0 F)
1957-17.8 C (0.0 F)
1958-18.3 C (-0.9 F)
1959-21.7 C (-7.1 F)
1960-23.9 C (-11.0 F)
1961-22.8 C (-9.0 F)
1962-27.8 C (-18.0 F)
1963-30.0 C (-22.0 F)
1964-24.4 C (-11.9 F)
1965-18.3 C (-0.9 F)
1966-23.9 C (-11.0 F)
1967-25.0 C (-13.0 F)
1968-20.0 C (-4.0 F)
1969-18.9 C (-2.0 F)
1970-20.6 C (-5.1 F)
1971-29.4 C (-20.9 F)
1972-24.4 C (-11.9 F)
1973-25.6 C (-14.1 F)
1974-23.3 C (-9.9 F)
1975-23.9 C (-11.0 F)
1976-23.9 C (-11.0 F)
1977-21.1 C (-6.0 F)
1978-25.6 C (-14.1 F)
1979-26.1 C (-15.0 F)
1980-20.6 C (-5.1 F)
1981-17.2 C (1.0 F)
1982-33.3 C (-27.9 F)
1983-20.0 C (-4.0 F)
1984-26.1 C (-15.0 F)
1985-28.9 C (-20.0 F)
1986-17.8 C (0.0 F)
1987-26.7 C (-16.1 F)
1988-30.0 C (-22.0 F)
1989-28.9 C (-20.0 F)
1990-36.7 C (-34.1 F)
1991-22.8 C (-9.0 F)
1992-26.7 C (-16.1 F)
1993-23.3 C (-9.9 F)
1994-20.6 C (-5.1 F)
1995-14.4 C (6.1 F)
1996-22.2 C (-8.0 F)
1997-22.8 C (-9.0 F)
1998-33.3 C (-27.9 F)
1999-17.8 C (0.0 F)
2000-17.8 C (0.0 F)
2001-27.8 C (-18.0 F)
2002-25.0 C (-13.0 F)
2003-23.3 C (-9.9 F)
2004-26.1 C (-15.0 F)
2005-21.7 C (-7.1 F)
2006-28.3 C (-18.9 F)
2007-31.7 C (-25.1 F)
2008-27.8 C (-18.0 F)
2009-32.8 C (-27.0 F)
2010-25.6 C (-14.1 F)
2011-30.0 C (-22.0 F)
2012-26.1 C (-15.0 F)
2013-32.2 C (-26.0 F)
2014-22.2 C (-8.0 F)
2015-29.4 C (-20.9 F)
2016-26.1 C (-15.0 F)
2017-27.2 C (-17.0 F)
2018-25.0 C (-13.0 F)
2019-29.4 C (-20.9 F)
2020-23.3 C (-9.9 F)
2021-22.8 C (-9.0 F)
2022-25.6 C (-14.1 F)
2023-24.4 C (-11.9 F)
2024-21.1 C (-6.0 F)
2025-20.0 C (-4.0 F)
2026-16.7 C (1.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ephraim by year The wettest day of the year at Ephraim, 1949 to 2026. The record is 56.1 mm (2.2 in) in 1966, marked on the chart; the median year is 20.3 mm (0.8 in). 02040601960198020002020Record: 56.1 mm (2.2 in) in 1966
The wettest day of the year at Ephraim, 1949 to 2026. The record is 56.1 mm (2.2 in) in 1966, marked on the chart; the median year is 20.3 mm (0.8 in).
Wettest day (Rx1day) at Ephraim by year
YearWettest day (Rx1day)
194923.4 mm (0.9 in)
195027.4 mm (1.1 in)
195130.5 mm (1.2 in)
195214.5 mm (0.6 in)
195327.4 mm (1.1 in)
195422.6 mm (0.9 in)
195514.2 mm (0.6 in)
195618.3 mm (0.7 in)
195720.8 mm (0.8 in)
195814.7 mm (0.6 in)
195921.1 mm (0.8 in)
196018.3 mm (0.7 in)
196121.6 mm (0.9 in)
196216.5 mm (0.6 in)
196322.4 mm (0.9 in)
196430.0 mm (1.2 in)
196520.1 mm (0.8 in)
196656.1 mm (2.2 in)
196719.3 mm (0.8 in)
196818.0 mm (0.7 in)
196925.7 mm (1.0 in)
197048.8 mm (1.9 in)
197118.5 mm (0.7 in)
197221.3 mm (0.8 in)
197320.3 mm (0.8 in)
197411.9 mm (0.5 in)
197520.8 mm (0.8 in)
197613.0 mm (0.5 in)
197719.1 mm (0.8 in)
197818.5 mm (0.7 in)
197917.8 mm (0.7 in)
198036.8 mm (1.4 in)
198125.9 mm (1.0 in)
198227.9 mm (1.1 in)
198323.4 mm (0.9 in)
198424.9 mm (1.0 in)
198520.3 mm (0.8 in)
198616.5 mm (0.6 in)
198716.5 mm (0.6 in)
198821.6 mm (0.9 in)
198920.3 mm (0.8 in)
199019.1 mm (0.8 in)
19918.9 mm (0.35 in)
199225.4 mm (1.0 in)
199324.1 mm (0.9 in)
199422.9 mm (0.9 in)
199520.3 mm (0.8 in)
199626.7 mm (1.1 in)
199717.8 mm (0.7 in)
199816.5 mm (0.6 in)
199927.9 mm (1.1 in)
200027.9 mm (1.1 in)
200117.8 mm (0.7 in)
200225.4 mm (1.0 in)
200317.8 mm (0.7 in)
200416.8 mm (0.7 in)
200522.9 mm (0.9 in)
200625.4 mm (1.0 in)
200717.8 mm (0.7 in)
200815.5 mm (0.6 in)
200916.5 mm (0.6 in)
201038.6 mm (1.5 in)
201120.6 mm (0.8 in)
201218.5 mm (0.7 in)
201322.9 mm (0.9 in)
201425.9 mm (1.0 in)
201516.0 mm (0.6 in)
201619.1 mm (0.8 in)
201714.5 mm (0.6 in)
201815.0 mm (0.6 in)
201929.2 mm (1.1 in)
20208.9 mm (0.35 in)
202116.5 mm (0.6 in)
202216.8 mm (0.7 in)
202320.3 mm (0.8 in)
202426.7 mm (1.1 in)
202518.5 mm (0.7 in)
202615.0 mm (0.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ephraim by year The wettest five days of the year at Ephraim, 1949 to 2026. The record is 75.7 mm (3.0 in) in 1966, marked on the chart; the median year is 32.1 mm (1.3 in). 0204060801960198020002020Record: 75.7 mm (3.0 in) in 1966
The wettest five days of the year at Ephraim, 1949 to 2026. The record is 75.7 mm (3.0 in) in 1966, marked on the chart; the median year is 32.1 mm (1.3 in).
Wettest five days (Rx5day) at Ephraim by year
YearWettest five days (Rx5day)
194937.3 mm (1.5 in)
195034.2 mm (1.3 in)
195152.4 mm (2.1 in)
195252.1 mm (2.1 in)
195349.8 mm (2.0 in)
195427.7 mm (1.1 in)
195522.3 mm (0.9 in)
195629.2 mm (1.1 in)
195741.0 mm (1.6 in)
195819.4 mm (0.8 in)
195934.6 mm (1.4 in)
196023.0 mm (0.9 in)
196153.9 mm (2.1 in)
196227.1 mm (1.1 in)
196333.3 mm (1.3 in)
196437.4 mm (1.5 in)
196536.6 mm (1.4 in)
196675.7 mm (3.0 in)
196732.1 mm (1.3 in)
196829.4 mm (1.2 in)
196941.2 mm (1.6 in)
197063.4 mm (2.5 in)
197127.1 mm (1.1 in)
197228.4 mm (1.1 in)
197324.5 mm (1.0 in)
197423.4 mm (0.9 in)
197534.8 mm (1.4 in)
197618.3 mm (0.7 in)
197729.2 mm (1.1 in)
197825.2 mm (1.0 in)
197941.4 mm (1.6 in)
198064.5 mm (2.5 in)
198135.8 mm (1.4 in)
198275.7 mm (3.0 in)
198342.3 mm (1.7 in)
198464.7 mm (2.5 in)
198539.5 mm (1.6 in)
198625.4 mm (1.0 in)
198733.6 mm (1.3 in)
198821.6 mm (0.9 in)
198922.9 mm (0.9 in)
199035.7 mm (1.4 in)
199118.5 mm (0.7 in)
199227.5 mm (1.1 in)
199339.5 mm (1.6 in)
199455.4 mm (2.2 in)
199547.0 mm (1.9 in)
199640.7 mm (1.6 in)
199726.7 mm (1.1 in)
199831.8 mm (1.3 in)
199933.5 mm (1.3 in)
200037.0 mm (1.5 in)
200121.6 mm (0.9 in)
200254.1 mm (2.1 in)
200338.6 mm (1.5 in)
200447.4 mm (1.9 in)
200537.7 mm (1.5 in)
200633.6 mm (1.3 in)
200731.5 mm (1.2 in)
200824.1 mm (0.9 in)
200927.1 mm (1.1 in)
201066.1 mm (2.6 in)
201128.0 mm (1.1 in)
201223.7 mm (0.9 in)
201324.2 mm (1.0 in)
201428.5 mm (1.1 in)
201520.1 mm (0.8 in)
201634.6 mm (1.4 in)
201714.5 mm (0.6 in)
201811.3 mm (0.4 in)
201929.2 mm (1.1 in)
20208.4 mm (0.33 in)
202132.5 mm (1.3 in)
202217.0 mm (0.7 in)
202319.4 mm (0.8 in)
202432.0 mm (1.3 in)
202519.3 mm (0.8 in)
202620.0 mm (0.8 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ephraim by year The longest dry spell of the year at Ephraim, 1949 to 2026. The record is 80 days in 2012, marked on the chart; the median year is 36 days. 204060801960198020002020Record: 80 days in 2012
The longest dry spell of the year at Ephraim, 1949 to 2026. The record is 80 days in 2012, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Ephraim by year
YearLongest dry spell (CDD)
194929 days
195060 days
195131 days
195255 days
195333 days
195430 days
195538 days
195643 days
195733 days
195868 days
195947 days
196052 days
196150 days
196255 days
196327 days
196437 days
196529 days
196628 days
196751 days
196829 days
196930 days
197022 days
197143 days
197233 days
197323 days
197456 days
197558 days
197668 days
197748 days
197871 days
197943 days
198030 days
198134 days
198234 days
198340 days
198442 days
198549 days
198633 days
198728 days
198836 days
198928 days
199025 days
199127 days
199234 days
199336 days
199458 days
199531 days
199642 days
199736 days
199834 days
199944 days
200045 days
200136 days
200244 days
200333 days
200431 days
200527 days
200629 days
200740 days
200839 days
200958 days
201046 days
201130 days
201280 days
201335 days
201432 days
201547 days
201638 days
201764 days
201827 days
201942 days
202045 days
202132 days
202229 days
202320 days
202434 days
202546 days
202625 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

69 years with a frost

Across 69 years with a frost, the median last spring frost at Ephraim falls on 24 May and the median first autumn frost on 22 September, which leaves a median of 123 days between them.

In 1991 to 2025 the median growing season was 118 days. That is 7 days fewer than in 1951 to 1981.

Fitted over all years, the growing season changes by -1.7 days per decade at this station.

Frost dates and growing season at Ephraim
MeasureMedian, all yearsEarliest period (1951 to 1981)Recent period (1991 to 2025)Recent against earliestFitted trend
Last spring frost24 May24 May25 May1 day later+0.8 days per decade
First autumn frost22 September24 September20 September4 days earlier-0.9 days per decade
Growing days123 days125 days118 days7 days fewer-1.7 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

66 years, 1950 to 2025

A day with at least 20.5 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 48.9 mm (1.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Ephraim: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years20.5 mm (0.8 in)
5 years26.4 mm (1.0 in)
10 years31.0 mm (1.2 in)
25 years37.5 mm (1.5 in)
50 years42.9 mm (1.7 in)
100 years48.9 mm (1.9 in)Longer than the 66 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, 66 years of values from 1950 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: 56.1 mm (2.2 in) in 1966; 48.8 mm (1.9 in) in 1970; 38.6 mm (1.5 in) in 2010.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Ephraim standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Ephraim 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).