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Ellsworth Weather Records (USC00172620)

Record envelope, standing records and threshold days for Ellsworth (USC00172620), Maine, United States, with 86 years of record.

Key Facts for Ellsworth

  • Ellsworth (USC00172620) is a weather station in Maine, United States at 44.53 latitude and -68.43 longitude, 6 m (20 ft) above sea level.
  • The station reports from 1910 to 1995, 86 years of record.
  • 1,464 records set at Ellsworth still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Ellsworth set a daily record high minimum temperature of 17.2 C (63.0 F) on 26 June 1995.

About the Station

  • Location: Maine, United States, 44.53 latitude, -68.43 longitude.
  • Elevation: 6 m (20 ft).
  • Period of record: 1910 to 1995, 86 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Ellsworth, with 2026 drawn through them The band shows the record high and record low for each calendar day at Ellsworth. The lines show the 2026 daily maximum and minimum. 0 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 Ellsworth. 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 Ellsworth, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan12.8 C (55.0 F)-36.1 C (-33.0 F)n/an/a
Feb13.3 C (55.9 F)-30.6 C (-23.1 F)n/an/a
Mar23.9 C (75.0 F)-22.2 C (-8.0 F)n/an/a
Apr26.7 C (80.1 F)-13.3 C (8.1 F)n/an/a
May34.4 C (93.9 F)-4.4 C (24.1 F)n/an/a
Jun35.0 C (95.0 F)0.6 C (33.1 F)n/an/a
Jul36.1 C (97.0 F)4.4 C (39.9 F)n/an/a
Aug37.8 C (100.0 F)2.2 C (36.0 F)n/an/a
Sep32.2 C (90.0 F)-3.9 C (25.0 F)n/an/a
Oct27.8 C (82.0 F)-7.8 C (18.0 F)n/an/a
Nov21.7 C (71.1 F)-13.9 C (7.0 F)n/an/a
Dec16.7 C (62.1 F)-29.4 C (-20.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Ellsworth by the year they were set 1,464 records at Ellsworth still stand. 1979 holds the most, with 82. 02550751001910: 421911: 121962: 341963: 561964: 391965: 491966: 441967: 511968: 521969: 521970: 421971: 561972: 441973: 401974: 481975: 401976: 471977: 381978: 321979: 821980: 331981: 381982: 401983: 141984: 411985: 361986: 371987: 341988: 311989: 511990: 411991: 371992: 381993: 481994: 231995: 22191019641968197219761980198419881992
1,464 records at Ellsworth still stand. 1979 holds the most, with 82.
Standing records at Ellsworth by the year they were set
Year setStanding records
191042
191112
196234
196356
196439
196549
196644
196751
196852
196952
197042
197156
197244
197340
197448
197540
197647
197738
197832
197982
198033
198138
198240
198314
198441
198536
198637
198734
198831
198951
199041
199137
199238
199348
199423
199522

Wettest Day of Each Month

Sep: 124.0 mm (4.9 in)
Record daily precipitation for each month at Ellsworth The wettest day on record for each calendar month at Ellsworth. The most was 124.0 mm (4.9 in) on 12 September 1954. 050100150 Jan: 67.1 mm (2.6 in), 3 January 1936 Jan Feb: 73.2 mm (2.9 in), 4 February 1970 Feb Mar: 86.6 mm (3.4 in), 23 March 1972 Mar Apr: 67.3 mm (2.6 in), 3 April 1970 Apr May: 107.2 mm (4.2 in), 28 May 1961 May Jun: 87.6 mm (3.4 in), 14 June 1975 Jun Jul: 99.8 mm (3.9 in), 27 July 1986 Jul Aug: 93.2 mm (3.7 in), 12 August 1990 Aug Sep: 124.0 mm (4.9 in), 12 September 1954 Sep Oct: 88.1 mm (3.5 in), 25 October 1959 Oct Nov: 92.5 mm (3.6 in), 25 November 1959 Nov Dec: 91.7 mm (3.6 in), 23 December 1969 Dec
The wettest day on record for each calendar month at Ellsworth. The most was 124.0 mm (4.9 in) on 12 September 1954.
Record daily precipitation for each month at Ellsworth
MonthRecord daily precipitation (mm)Date
Jan67.1 mm (2.6 in)3 January 1936
Feb73.2 mm (2.9 in)4 February 1970
Mar86.6 mm (3.4 in)23 March 1972
Apr67.3 mm (2.6 in)3 April 1970
May107.2 mm (4.2 in)28 May 1961
Jun87.6 mm (3.4 in)14 June 1975
Jul99.8 mm (3.9 in)27 July 1986
Aug93.2 mm (3.7 in)12 August 1990
Sep124.0 mm (4.9 in)12 September 1954
Oct88.1 mm (3.5 in)25 October 1959
Nov92.5 mm (3.6 in)25 November 1959
Dec91.7 mm (3.6 in)23 December 1969

Period of Record Coverage

1910 to 1995
Days with data per year at Ellsworth 36 years of record at Ellsworth, 1910 to 1995. 10 years have data for under 90 percent of days and are left out of rankings: 1910, 1911, 1962, 1976, 1977, 1982, 1983, 1984 and others. 1910: 284 of 365 days1911: 72 of 365 days1962: 184 of 365 days1963: 365 of 365 days1964: 358 of 366 days1965: 364 of 365 days1966: 363 of 365 days1967: 363 of 365 days1968: 363 of 366 days1969: 364 of 365 days1970: 364 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 361 of 365 days1975: 362 of 365 days1976: 328 of 366 days1977: 304 of 365 days1978: 333 of 365 days1979: 335 of 365 days1980: 335 of 366 days1981: 335 of 365 days1982: 269 of 365 days1983: 121 of 365 days1984: 241 of 366 days1985: 362 of 365 days1986: 362 of 365 days1987: 363 of 365 days1988: 358 of 366 days1989: 360 of 365 days1990: 362 of 365 days1991: 360 of 365 days1992: 361 of 366 days1993: 355 of 365 days1994: 327 of 365 days1995: 179 of 365 days19101965197019751980198519901995
36 years of record at Ellsworth, 1910 to 1995. 10 years have data for under 90 percent of days and are left out of rankings: 1910, 1911, 1962, 1976, 1977, 1982, 1983, 1984 and others.
Days with data per year at Ellsworth
YearDays with dataShare of yearComplete
191028478%No
19117220%No
196218450%No
1963365100%Yes
196435898%Yes
1965364100%Yes
196636399%Yes
196736399%Yes
196836399%Yes
1969364100%Yes
1970364100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
197436199%Yes
197536299%Yes
197632890%No
197730483%No
197833391%Yes
197933592%Yes
198033592%Yes
198133592%Yes
198226974%No
198312133%No
198424166%No
198536299%Yes
198636299%Yes
198736399%Yes
198835898%Yes
198936099%Yes
199036299%Yes
199136099%Yes
199236199%Yes
199335597%Yes
199432790%No
199517949%No

Latest Records

20
Latest records at Ellsworth
DateStationRecordValueBeat old record byOld record stoodSignificance
26 June 1995Ellsworth, USdaily high min17.2 C (63.0 F)1.6 C (2.9 F)14 years16 of 100 (Routine)
20 June 1995Ellsworth, USdaily high min18.3 C (64.9 F)2.2 C (4.0 F)18 years19 of 100 (Routine)
20 June 1995Ellsworth, USdaily high max28.3 C (82.9 F)0.5 C (0.9 F)4 years10 of 100 (Routine)
19 June 1995Ellsworth, USdaily high max34.4 C (93.9 F)5.5 C (9.9 F)20 years27 of 100 (Routine)
18 June 1995Ellsworth, USdaily high max30.6 C (87.1 F)1.2 C (2.2 F)0 years10 of 100 (Routine)
4 June 1995Ellsworth, USdaily high min15.0 C (59.0 F)1.1 C (2.0 F)16 years16 of 100 (Routine)
1 June 1995Ellsworth, USdaily high max31.1 C (88.0 F)1.1 C (2.0 F)8 years12 of 100 (Routine)
24 May 1995Ellsworth, USdaily high min11.7 C (53.1 F)0.6 C (1.1 F)13 years13 of 100 (Routine)
16 May 1995Ellsworth, USdaily low max8.9 C (48.0 F)2.8 C (5.0 F)0 years14 of 100 (Routine)
13 May 1995Ellsworth, USdaily rain73.7 mm (2.9 in)29.2 mm (1.1 in)68 years56 of 100 (Notable)
12 May 1995Ellsworth, USdaily low max (Tie)11.1 C (52.0 F)tie28 years4 of 100 (Routine)
30 April 1995Ellsworth, USdaily low max (Tie)8.9 C (48.0 F)tie84 years8 of 100 (Routine)
6 April 1995Ellsworth, USdaily low min-9.4 C (15.1 F)0.5 C (0.9 F)30 years18 of 100 (Routine)
5 April 1995Ellsworth, USdaily low min-11.7 C (10.9 F)2.3 C (4.1 F)32 years23 of 100 (Routine)
4 March 1995Ellsworth, USdaily low min-20.0 C (-4.0 F)3.3 C (5.9 F)32 years22 of 100 (Routine)
27 February 1995Ellsworth, USdaily low max-8.3 C (17.1 F)0.5 C (0.9 F)0 years8 of 100 (Routine)
8 February 1995Ellsworth, USdaily low min-25.0 C (-13.0 F)2.2 C (4.0 F)28 years19 of 100 (Routine)
7 February 1995Ellsworth, USdaily low max-14.4 C (6.1 F)1.1 C (2.0 F)84 years35 of 100 (Notable)
7 February 1995Ellsworth, USdaily low min (Tie)-27.8 C (-18.0 F)tie1 year2 of 100 (Routine)
6 February 1995Ellsworth, USdaily low max-13.3 C (8.1 F)5.5 C (9.9 F)19 years23 of 100 (Routine)

Climate Trend

22 complete years, 1963 to 1993
Annual mean temperature at Ellsworth as warming stripes, 1963 to 1993 One stripe for each of 22 complete years at Ellsworth, 1963 to 1993. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1972, at 6.2 C (43.1 F), and the warmest was 1990, at 8.0 C (46.3 F). The strongest colour marks a difference of 1.1 C (2.0 F). 1963: 6.3 C, -0.6 C from the station mean1964: 6.5 C, -0.4 C from the station mean1965: 6.4 C, -0.5 C from the station mean1966: 7.3 C, +0.3 C from the station mean1967: 6.3 C, -0.6 C from the station mean1968: 6.6 C, -0.3 C from the station mean1969: 7.3 C, +0.4 C from the station mean1970: 6.7 C, -0.3 C from the station mean1971: 6.8 C, -0.1 C from the station mean1972: 6.2 C, -0.7 C from the station mean1973: 7.8 C, +0.9 C from the station mean1974: 7.0 C, +0.1 C from the station mean1975: 7.4 C, +0.5 C from the station mean1985: 6.8 C, -0.1 C from the station mean1986: 6.8 C, -0.1 C from the station mean1987: 7.2 C, +0.3 C from the station mean1988: 7.4 C, +0.5 C from the station mean1989: 6.2 C, -0.7 C from the station mean1990: 8.0 C, +1.1 C from the station mean1991: 7.9 C, +1.0 C from the station mean1992: 6.4 C, -0.5 C from the station mean1993: 6.8 C, -0.1 C from the station mean1963196519701975198019851990
One stripe for each of 22 complete years at Ellsworth, 1963 to 1993. Blue stripes are years cooler than the station's own mean of 6.9 C (44.4 F); red stripes are warmer. The coolest year was 1972, at 6.2 C (43.1 F), and the warmest was 1990, at 8.0 C (46.3 F). The strongest colour marks a difference of 1.1 C (2.0 F).
Annual mean temperature at Ellsworth as warming stripes, 1963 to 1993
YearAnnual mean temperatureDifference from the station mean
19636.3 C-0.58 C
19646.5 C-0.37 C
19656.4 C-0.52 C
19667.3 C+0.35 C
19676.3 C-0.62 C
19686.6 C-0.26 C
19697.3 C+0.38 C
19706.7 C-0.25 C
19716.8 C-0.09 C
19726.2 C-0.74 C
19737.8 C+0.90 C
19747.0 C+0.06 C
19757.4 C+0.49 C
19856.8 C-0.11 C
19866.8 C-0.06 C
19877.2 C+0.31 C
19887.4 C+0.46 C
19896.2 C-0.70 C
19908.0 C+1.07 C
19917.9 C+0.96 C
19926.4 C-0.50 C
19936.8 C-0.12 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

1910 to 1995
Yearly extremes at Ellsworth: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)37.8 C (100.0 F)197533.3 C (91.9 F)36
Coldest night (TNn)-36.1 C (-33.0 F)1981-26.4 C (-15.5 F)36
Wettest day (Rx1day)124.0 mm (4.9 in)195460.5 mm (2.4 in)73
Wettest five days (Rx5day)180.7 mm (7.1 in)195991.5 mm (3.6 in)73
Longest dry spell (CDD)30 days194716 days73

Hottest day (TXx)

Hottest day (TXx) at Ellsworth by year The hottest day of the year at Ellsworth, 1910 to 1995. The record is 37.8 C (100.0 F) in 1975, marked on the chart; the median year is 33.3 C (91.9 F). 102030401920194019601980Record: 37.8 C (100.0 F) in 1975
The hottest day of the year at Ellsworth, 1910 to 1995. The record is 37.8 C (100.0 F) in 1975, marked on the chart; the median year is 33.3 C (91.9 F).
Hottest day (TXx) at Ellsworth by year
YearHottest day (TXx)
191031.7 C (89.1 F)
191110.0 C (50.0 F)
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
196231.1 C (88.0 F)
196336.1 C (97.0 F)
196431.7 C (89.1 F)
196532.2 C (90.0 F)
196632.2 C (90.0 F)
196731.1 C (88.0 F)
196834.4 C (93.9 F)
196933.9 C (93.0 F)
197033.9 C (93.0 F)
197132.2 C (90.0 F)
197230.0 C (86.0 F)
197333.3 C (91.9 F)
197431.1 C (88.0 F)
197537.8 C (100.0 F)
197635.0 C (95.0 F)
197735.0 C (95.0 F)
197833.3 C (91.9 F)
197934.4 C (93.9 F)
198032.2 C (90.0 F)
198134.4 C (93.9 F)
198233.3 C (91.9 F)
198331.7 C (89.1 F)
198434.4 C (93.9 F)
198532.8 C (91.0 F)
198632.2 C (90.0 F)
198734.4 C (93.9 F)
198835.0 C (95.0 F)
198933.3 C (91.9 F)
199032.2 C (90.0 F)
199134.4 C (93.9 F)
199234.4 C (93.9 F)
199335.0 C (95.0 F)
199432.2 C (90.0 F)
199534.4 C (93.9 F)

Coldest night (TNn)

Coldest night (TNn) at Ellsworth by year The coldest night of the year at Ellsworth, 1910 to 1995. The record is -36.1 C (-33.0 F) in 1981, marked on the chart; the median year is -26.4 C (-15.5 F). -40-35-30-25-201920194019601980Record: -36.1 C (-33.0 F) in 1981
The coldest night of the year at Ellsworth, 1910 to 1995. The record is -36.1 C (-33.0 F) in 1981, marked on the chart; the median year is -26.4 C (-15.5 F).
Coldest night (TNn) at Ellsworth by year
YearColdest night (TNn)
1910-24.4 C (-11.9 F)
1911-26.1 C (-15.0 F)
1925n/a
1926n/a
1927n/a
1928n/a
1929n/a
1930n/a
1931n/a
1932n/a
1933n/a
1934n/a
1935n/a
1936n/a
1937n/a
1938n/a
1939n/a
1940n/a
1941n/a
1942n/a
1943n/a
1944n/a
1945n/a
1946n/a
1947n/a
1948n/a
1949n/a
1950n/a
1951n/a
1952n/a
1953n/a
1954n/a
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962-22.2 C (-8.0 F)
1963-27.2 C (-17.0 F)
1964-26.7 C (-16.1 F)
1965-28.9 C (-20.0 F)
1966-25.0 C (-13.0 F)
1967-28.3 C (-18.9 F)
1968-26.7 C (-16.1 F)
1969-23.9 C (-11.0 F)
1970-27.8 C (-18.0 F)
1971-32.2 C (-26.0 F)
1972-30.0 C (-22.0 F)
1973-26.1 C (-15.0 F)
1974-24.4 C (-11.9 F)
1975-25.0 C (-13.0 F)
1976-26.7 C (-16.1 F)
1977-27.8 C (-18.0 F)
1978-23.3 C (-9.9 F)
1979-21.7 C (-7.1 F)
1980-29.4 C (-20.9 F)
1981-36.1 C (-33.0 F)
1982-27.8 C (-18.0 F)
1983-20.6 C (-5.1 F)
1984-30.0 C (-22.0 F)
1985-26.1 C (-15.0 F)
1986-23.9 C (-11.0 F)
1987-23.3 C (-9.9 F)
1988-27.8 C (-18.0 F)
1989-27.8 C (-18.0 F)
1990-26.1 C (-15.0 F)
1991-25.0 C (-13.0 F)
1992-25.0 C (-13.0 F)
1993-27.8 C (-18.0 F)
1994-21.1 C (-6.0 F)
1995-27.8 C (-18.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Ellsworth by year The wettest day of the year at Ellsworth, 1910 to 1995. The record is 124.0 mm (4.9 in) in 1954, marked on the chart; the median year is 60.5 mm (2.4 in). 2550751001251920194019601980Record: 124.0 mm (4.9 in) in 1954
The wettest day of the year at Ellsworth, 1910 to 1995. The record is 124.0 mm (4.9 in) in 1954, marked on the chart; the median year is 60.5 mm (2.4 in).
Wettest day (Rx1day) at Ellsworth by year
YearWettest day (Rx1day)
191050.8 mm (2.0 in)
191130.5 mm (1.2 in)
192546.5 mm (1.8 in)
192644.7 mm (1.8 in)
192761.7 mm (2.4 in)
192840.4 mm (1.6 in)
192984.3 mm (3.3 in)
193059.9 mm (2.4 in)
193175.2 mm (3.0 in)
193266.5 mm (2.6 in)
193353.3 mm (2.1 in)
1934117.6 mm (4.6 in)
193551.8 mm (2.0 in)
193667.1 mm (2.6 in)
193757.4 mm (2.3 in)
193842.7 mm (1.7 in)
193944.2 mm (1.7 in)
194066.8 mm (2.6 in)
194136.8 mm (1.4 in)
194274.4 mm (2.9 in)
194371.1 mm (2.8 in)
194482.0 mm (3.2 in)
194552.1 mm (2.1 in)
194645.7 mm (1.8 in)
194761.0 mm (2.4 in)
194846.0 mm (1.8 in)
194928.2 mm (1.1 in)
195046.5 mm (1.8 in)
195175.2 mm (3.0 in)
195254.6 mm (2.1 in)
195343.9 mm (1.7 in)
1954124.0 mm (4.9 in)
195569.3 mm (2.7 in)
195640.9 mm (1.6 in)
195733.0 mm (1.3 in)
195863.2 mm (2.5 in)
195992.5 mm (3.6 in)
196090.2 mm (3.6 in)
1961107.2 mm (4.2 in)
196264.5 mm (2.5 in)
196353.1 mm (2.1 in)
196444.2 mm (1.7 in)
196545.7 mm (1.8 in)
196649.0 mm (1.9 in)
196745.0 mm (1.8 in)
196846.5 mm (1.8 in)
196994.7 mm (3.7 in)
197073.2 mm (2.9 in)
197156.4 mm (2.2 in)
1972117.6 mm (4.6 in)
197367.1 mm (2.6 in)
197440.6 mm (1.6 in)
197587.6 mm (3.4 in)
197673.7 mm (2.9 in)
197760.5 mm (2.4 in)
197858.4 mm (2.3 in)
197975.7 mm (3.0 in)
198058.9 mm (2.3 in)
198156.4 mm (2.2 in)
198252.8 mm (2.1 in)
198379.8 mm (3.1 in)
198473.2 mm (2.9 in)
198561.0 mm (2.4 in)
198699.8 mm (3.9 in)
198788.9 mm (3.5 in)
198880.0 mm (3.1 in)
198952.1 mm (2.1 in)
199093.2 mm (3.7 in)
199163.5 mm (2.5 in)
199239.4 mm (1.6 in)
199357.7 mm (2.3 in)
199473.7 mm (2.9 in)
199573.7 mm (2.9 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Ellsworth by year The wettest five days of the year at Ellsworth, 1910 to 1995. The record is 180.7 mm (7.1 in) in 1959, marked on the chart; the median year is 91.5 mm (3.6 in). 501001502001920194019601980Record: 180.7 mm (7.1 in) in 1959
The wettest five days of the year at Ellsworth, 1910 to 1995. The record is 180.7 mm (7.1 in) in 1959, marked on the chart; the median year is 91.5 mm (3.6 in).
Wettest five days (Rx5day) at Ellsworth by year
YearWettest five days (Rx5day)
191077.2 mm (3.0 in)
191153.6 mm (2.1 in)
192571.3 mm (2.8 in)
192691.5 mm (3.6 in)
1927114.0 mm (4.5 in)
192864.0 mm (2.5 in)
1929101.6 mm (4.0 in)
193092.9 mm (3.7 in)
193188.2 mm (3.5 in)
1932113.8 mm (4.5 in)
193373.1 mm (2.9 in)
1934130.3 mm (5.1 in)
193599.3 mm (3.9 in)
193689.1 mm (3.5 in)
1937113.8 mm (4.5 in)
193873.7 mm (2.9 in)
193977.2 mm (3.0 in)
1940123.5 mm (4.9 in)
194153.1 mm (2.1 in)
1942178.3 mm (7.0 in)
1943111.2 mm (4.4 in)
1944101.8 mm (4.0 in)
194577.3 mm (3.0 in)
194658.6 mm (2.3 in)
1947112.3 mm (4.4 in)
194883.6 mm (3.3 in)
194999.6 mm (3.9 in)
195087.7 mm (3.5 in)
195184.9 mm (3.3 in)
195265.8 mm (2.6 in)
195394.9 mm (3.7 in)
1954146.1 mm (5.8 in)
195584.0 mm (3.3 in)
195662.4 mm (2.5 in)
195760.0 mm (2.4 in)
1958105.4 mm (4.1 in)
1959180.7 mm (7.1 in)
1960104.4 mm (4.1 in)
1961178.4 mm (7.0 in)
196288.2 mm (3.5 in)
1963105.1 mm (4.1 in)
196475.1 mm (3.0 in)
196574.1 mm (2.9 in)
196695.9 mm (3.8 in)
196775.4 mm (3.0 in)
196883.8 mm (3.3 in)
1969170.2 mm (6.7 in)
1970103.9 mm (4.1 in)
197184.5 mm (3.3 in)
1972122.7 mm (4.8 in)
1973106.7 mm (4.2 in)
197487.6 mm (3.4 in)
1975112.0 mm (4.4 in)
197687.9 mm (3.5 in)
197792.0 mm (3.6 in)
197864.0 mm (2.5 in)
1979102.4 mm (4.0 in)
1980103.6 mm (4.1 in)
198171.1 mm (2.8 in)
198285.1 mm (3.4 in)
1983134.6 mm (5.3 in)
1984125.4 mm (4.9 in)
198583.9 mm (3.3 in)
1986165.4 mm (6.5 in)
198795.3 mm (3.8 in)
1988104.6 mm (4.1 in)
198996.5 mm (3.8 in)
1990105.9 mm (4.2 in)
199185.4 mm (3.4 in)
199258.4 mm (2.3 in)
199370.1 mm (2.8 in)
199488.2 mm (3.5 in)
199581.1 mm (3.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Ellsworth by year The longest dry spell of the year at Ellsworth, 1910 to 1995. The record is 30 days in 1947, marked on the chart; the median year is 16 days. 01020301920194019601980Record: 30 days in 1947
The longest dry spell of the year at Ellsworth, 1910 to 1995. The record is 30 days in 1947, marked on the chart; the median year is 16 days.
Longest dry spell (CDD) at Ellsworth by year
YearLongest dry spell (CDD)
191014 days
191119 days
19257 days
192615 days
192715 days
192814 days
192912 days
193014 days
193115 days
193217 days
193316 days
193414 days
193515 days
19368 days
193716 days
193815 days
193916 days
194019 days
194120 days
194217 days
194316 days
194422 days
194516 days
194616 days
194730 days
194818 days
194919 days
195028 days
195116 days
195220 days
195317 days
195414 days
195518 days
195615 days
195712 days
195813 days
195915 days
196021 days
196124 days
196213 days
196315 days
196415 days
196514 days
196619 days
196723 days
196825 days
196915 days
197023 days
197114 days
197211 days
197316 days
197417 days
197520 days
197620 days
197717 days
197821 days
197921 days
198024 days
198118 days
198220 days
198312 days
198415 days
198527 days
198613 days
198719 days
198815 days
198914 days
199020 days
199116 days
199215 days
199314 days
199421 days
199513 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

22 years with a frost

Across 22 years with a frost, the median last spring frost at Ellsworth falls on 11 May and the median first autumn frost on 8 October, which leaves a median of 145 days between them.

Frost dates and growing season at Ellsworth
MeasureMedian, all yearsEarliest periodRecent period (1963 to 1993)Recent against earliestFitted trend
Last spring frost11 Mayn/a11 Mayn/an/a
First autumn frost8 Octobern/a8 Octobern/an/a
Growing days145 daysn/a145 daysn/an/a

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

65 years, 1926 to 1994

A day with at least 60.6 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 135.3 mm (5.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Ellsworth: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years60.6 mm (2.4 in)
5 years80.0 mm (3.1 in)
10 years93.1 mm (3.7 in)
25 years109.9 mm (4.3 in)
50 years122.6 mm (4.8 in)
100 years135.3 mm (5.3 in)Longer than the 65 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, 65 years of values from 1926 to 1994.

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: 124.0 mm (4.9 in) in 1954; 117.6 mm (4.6 in) in 1934; 117.6 mm (4.6 in) in 1972.

Download the Data

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