Built 2026-10-17 (17 October 2026)

Tully Heiberg Forest Weather Records (USC00308627)

Record envelope, standing records and threshold days for Tully Heiberg Forest (USC00308627), New York, United States, with 41 years of record.

Key Facts for Tully Heiberg Forest

  • Tully Heiberg Forest (USC00308627) is a weather station in New York, United States at 42.76 latitude and -76.08 longitude, 579 m (1,899 ft) above sea level.
  • The station reports from 1967 to 2007, 41 years of record.
  • 1,464 records set at Tully Heiberg Forest still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Tully Heiberg Forest tied a daily record high maximum temperature of 30.0 C (86.0 F) on 26 August 2007.

About the Station

  • Location: New York, United States, 42.76 latitude, -76.08 longitude.
  • Elevation: 579 m (1,899 ft).
  • Period of record: 1967 to 2007, 41 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 Tully Heiberg Forest, with 2026 drawn through them The band shows the record high and record low for each calendar day at Tully Heiberg Forest. 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 Tully Heiberg Forest. 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 Tully Heiberg Forest, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan17.2 C (63.0 F)-29.4 C (-20.9 F)n/an/a
Feb14.4 C (57.9 F)-30.0 C (-22.0 F)n/an/a
Mar26.7 C (80.1 F)-23.9 C (-11.0 F)n/an/a
Apr29.4 C (84.9 F)-15.0 C (5.0 F)n/an/a
May31.1 C (88.0 F)-8.3 C (17.1 F)n/an/a
Jun32.2 C (90.0 F)-1.1 C (30.0 F)n/an/a
Jul33.9 C (93.0 F)2.8 C (37.0 F)n/an/a
Aug33.3 C (91.9 F)0.6 C (33.1 F)n/an/a
Sep31.7 C (89.1 F)-5.6 C (21.9 F)n/an/a
Oct26.7 C (80.1 F)-10.0 C (14.0 F)n/an/a
Nov23.3 C (73.9 F)-17.8 C (0.0 F)n/an/a
Dec18.3 C (64.9 F)-33.9 C (-29.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Tully Heiberg Forest by the year they were set 1,464 records at Tully Heiberg Forest still stand. 1979 holds the most, with 62. 0204060801967: 471968: 551969: 281970: 321971: 321972: 331973: 461974: 471975: 331976: 611977: 411978: 251979: 621980: 431981: 381982: 351983: 271984: 291985: 211986: 321987: 331988: 511989: 501990: 441991: 471992: 321993: 331994: 291995: 311996: 291997: 261998: 341999: 412000: 362001: 282002: 352003: 252004: 232005: 322006: 252007: 13196719721977198219871992199720022007
1,464 records at Tully Heiberg Forest still stand. 1979 holds the most, with 62.
Standing records at Tully Heiberg Forest by the year they were set
Year setStanding records
196747
196855
196928
197032
197132
197233
197346
197447
197533
197661
197741
197825
197962
198043
198138
198235
198327
198429
198521
198632
198733
198851
198950
199044
199147
199232
199333
199429
199531
199629
199726
199834
199941
200036
200128
200235
200325
200423
200532
200625
200713

All-Time Record Progression

1 new records
When Tully Heiberg Forest set new all-time records 1 all-time records were set at Tully Heiberg Forest between 25 September 2001 and 25 September 2001. Each dot is a new record. Record daily precipitation25 September 2001: Record daily precipitation 126.5 mm (5.0 in)
1 all-time records were set at Tully Heiberg Forest between 25 September 2001 and 25 September 2001. Each dot is a new record.
When Tully Heiberg Forest set new all-time records
DateKindDetail
2001-09-25Record daily precipitationRecord daily precipitation 126.5 mm (5.0 in)

Wettest Day of Each Month

Sep: 126.5 mm (5.0 in)
Record daily precipitation for each month at Tully Heiberg Forest The wettest day on record for each calendar month at Tully Heiberg Forest. The most was 126.5 mm (5.0 in) on 25 September 2001. 050100150 Jan: 48.5 mm (1.9 in), 20 January 1996 Jan Feb: 68.1 mm (2.7 in), 4 February 1972 Feb Mar: 56.4 mm (2.2 in), 30 March 1984 Mar Apr: 64.3 mm (2.5 in), 16 April 1976 Apr May: 47.0 mm (1.9 in), 17 May 1986 May Jun: 81.8 mm (3.2 in), 27 June 2006 Jun Jul: 72.4 mm (2.9 in), 3 July 1974 Jul Aug: 107.7 mm (4.2 in), 18 August 1994 Aug Sep: 126.5 mm (5.0 in), 25 September 2001 Sep Oct: 90.4 mm (3.6 in), 28 October 1981 Oct Nov: 90.4 mm (3.6 in), 9 November 1996 Nov Dec: 68.1 mm (2.7 in), 14 December 1996 Dec
The wettest day on record for each calendar month at Tully Heiberg Forest. The most was 126.5 mm (5.0 in) on 25 September 2001.
Record daily precipitation for each month at Tully Heiberg Forest
MonthRecord daily precipitation (mm)Date
Jan48.5 mm (1.9 in)20 January 1996
Feb68.1 mm (2.7 in)4 February 1972
Mar56.4 mm (2.2 in)30 March 1984
Apr64.3 mm (2.5 in)16 April 1976
May47.0 mm (1.9 in)17 May 1986
Jun81.8 mm (3.2 in)27 June 2006
Jul72.4 mm (2.9 in)3 July 1974
Aug107.7 mm (4.2 in)18 August 1994
Sep126.5 mm (5.0 in)25 September 2001
Oct90.4 mm (3.6 in)28 October 1981
Nov90.4 mm (3.6 in)9 November 1996
Dec68.1 mm (2.7 in)14 December 1996

Period of Record Coverage

1967 to 2007
Days with data per year at Tully Heiberg Forest 41 years of record at Tully Heiberg Forest, 1967 to 2007. 2 years have data for under 90 percent of days and are left out of rankings: 1978, 2007. 1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 364 of 365 days1971: 364 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 363 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 206 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 363 of 365 days1984: 366 of 366 days1985: 335 of 365 days1986: 363 of 365 days1987: 364 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 364 of 365 days1991: 365 of 365 days1992: 364 of 366 days1993: 363 of 365 days1994: 362 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 360 of 365 days1998: 361 of 365 days1999: 362 of 365 days2000: 365 of 366 days2001: 333 of 365 days2002: 364 of 365 days2003: 364 of 365 days2004: 365 of 366 days2005: 363 of 365 days2006: 365 of 365 days2007: 181 of 365 days1970198019902000
41 years of record at Tully Heiberg Forest, 1967 to 2007. 2 years have data for under 90 percent of days and are left out of rankings: 1978, 2007.
Days with data per year at Tully Heiberg Forest
YearDays with dataShare of yearComplete
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970364100%Yes
1971364100%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
197536399%Yes
1976366100%Yes
1977365100%Yes
197820656%No
1979365100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
198336399%Yes
1984366100%Yes
198533592%Yes
198636399%Yes
1987364100%Yes
1988366100%Yes
1989365100%Yes
1990364100%Yes
1991365100%Yes
199236499%Yes
199336399%Yes
199436299%Yes
1995365100%Yes
1996366100%Yes
199736099%Yes
199836199%Yes
199936299%Yes
2000365100%Yes
200133391%Yes
2002364100%Yes
2003364100%Yes
2004365100%Yes
200536399%Yes
2006365100%Yes
200718150%No

Latest Records

20
Latest records at Tully Heiberg Forest
DateStationRecordValueBeat old record byOld record stoodSignificance
26 August 2007Tully Heiberg Forest, USdaily high max (Tie)30.0 C (86.0 F)tie32 years3 of 100 (Routine)
25 August 2007Tully Heiberg Forest, USdaily high max30.0 C (86.0 F)1.1 C (2.0 F)32 years16 of 100 (Routine)
22 August 2007Tully Heiberg Forest, USdaily low max13.9 C (57.0 F)1.7 C (3.1 F)24 years15 of 100 (Routine)
21 August 2007Tully Heiberg Forest, USdaily low max (Tie)15.6 C (60.1 F)tie6 years1 of 100 (Routine)
27 June 2007Tully Heiberg Forest, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)37 years16 of 100 (Routine)
20 June 2007Tully Heiberg Forest, USdaily rain41.4 mm (1.6 in)1.3 mm (0.05 in)30 years14 of 100 (Routine)
20 June 2007Tully Heiberg Forest, USdaily high max (Tie)31.1 C (88.0 F)tie12 years1 of 100 (Routine)
9 June 2007Tully Heiberg Forest, USdaily high max (Tie)31.1 C (88.0 F)tie1 year1 of 100 (Routine)
3 June 2007Tully Heiberg Forest, USdaily high max28.9 C (84.0 F)0.6 C (1.1 F)28 years13 of 100 (Routine)
18 April 2007Tully Heiberg Forest, USdaily low max0.0 C (32.0 F)1.7 C (3.1 F)10 years9 of 100 (Routine)
18 April 2007Tully Heiberg Forest, USdaily snow depth (Tie)30.5 cm (12.0 in)tie36 years3 of 100 (Routine)
17 April 2007Tully Heiberg Forest, USdaily snowfall10.4 cm (4.1 in)8.1 cm (3.2 in)26 years27 of 100 (Routine)
16 April 2007Tully Heiberg Forest, USdaily snowfall24.1 cm (9.5 in)8.4 cm (3.3 in)24 years27 of 100 (Routine)
14 April 2007Tully Heiberg Forest, USdaily low max0.0 C (32.0 F)1.1 C (2.0 F)14 years9 of 100 (Routine)
9 April 2007Tully Heiberg Forest, USdaily low max (Tie)-2.2 C (28.0 F)tie32 years3 of 100 (Routine)
25 March 2007Tully Heiberg Forest, USdaily rain12.7 mm (0.5 in)2.8 mm (0.11 in)17 years13 of 100 (Routine)
7 March 2007Tully Heiberg Forest, USdaily low max-15.0 C (5.0 F)3.9 C (7.0 F)17 years14 of 100 (Routine)
7 March 2007Tully Heiberg Forest, USdaily low min-22.2 C (-8.0 F)0.5 C (0.9 F)17 years9 of 100 (Routine)
6 March 2007Tully Heiberg Forest, USdaily low min-22.8 C (-9.0 F)7.2 C (13.0 F)34 years25 of 100 (Routine)
2 March 2007Tully Heiberg Forest, USdaily rain14.0 mm (0.6 in)3.6 mm (0.14 in)8 years11 of 100 (Routine)

Climate Trend

37 complete years, 1967 to 2006
Annual mean temperature at Tully Heiberg Forest as warming stripes, 1967 to 2006 One stripe for each of 37 complete years at Tully Heiberg Forest, 1967 to 2006. Blue stripes are years cooler than the station's own mean of 6.3 C (43.4 F); red stripes are warmer. The coolest year was 1992, at 5.3 C (41.6 F), and the warmest was 1998, at 8.6 C (47.4 F). The strongest colour marks a difference of 2.3 C (4.1 F). 1967: 6.2 C, -0.1 C from the station mean1968: 6.2 C, -0.2 C from the station mean1969: 6.3 C, -0.1 C from the station mean1970: 6.1 C, -0.2 C from the station mean1971: 6.2 C, -0.1 C from the station mean1972: 5.5 C, -0.9 C from the station mean1973: 7.3 C, +1.0 C from the station mean1974: 6.4 C, 0.0 C from the station mean1975: 7.1 C, +0.7 C from the station mean1976: 5.8 C, -0.6 C from the station mean1977: 6.4 C, 0.0 C from the station mean1979: 5.9 C, -0.4 C from the station mean1980: 5.4 C, -0.9 C from the station mean1981: 6.1 C, -0.2 C from the station mean1982: 5.9 C, -0.4 C from the station mean1983: 6.6 C, +0.2 C from the station mean1984: 6.4 C, 0.0 C from the station mean1986: 6.3 C, -0.1 C from the station mean1987: 6.6 C, +0.3 C from the station mean1988: 6.0 C, -0.4 C from the station mean1989: 5.3 C, -1.0 C from the station mean1990: 7.4 C, +1.0 C from the station mean1991: 7.4 C, +1.0 C from the station mean1992: 5.3 C, -1.0 C from the station mean1993: 5.4 C, -0.9 C from the station mean1994: 5.7 C, -0.6 C from the station mean1995: 6.3 C, -0.1 C from the station mean1996: 5.6 C, -0.7 C from the station mean1997: 5.7 C, -0.6 C from the station mean1998: 8.6 C, +2.2 C from the station mean1999: 7.5 C, +1.2 C from the station mean2000: 6.5 C, +0.1 C from the station mean2002: 7.1 C, +0.8 C from the station mean2003: 5.8 C, -0.5 C from the station mean2004: 6.0 C, -0.3 C from the station mean2005: 7.0 C, +0.7 C from the station mean2006: 7.4 C, +1.0 C from the station mean196719701975198019851990199520002005
One stripe for each of 37 complete years at Tully Heiberg Forest, 1967 to 2006. Blue stripes are years cooler than the station's own mean of 6.3 C (43.4 F); red stripes are warmer. The coolest year was 1992, at 5.3 C (41.6 F), and the warmest was 1998, at 8.6 C (47.4 F). The strongest colour marks a difference of 2.3 C (4.1 F).
Annual mean temperature at Tully Heiberg Forest as warming stripes, 1967 to 2006
YearAnnual mean temperatureDifference from the station mean
19676.2 C-0.13 C
19686.2 C-0.17 C
19696.3 C-0.09 C
19706.1 C-0.22 C
19716.2 C-0.13 C
19725.5 C-0.86 C
19737.3 C+1.00 C
19746.4 C+0.05 C
19757.1 C+0.75 C
19765.8 C-0.55 C
19776.4 C+0.03 C
19795.9 C-0.42 C
19805.4 C-0.91 C
19816.1 C-0.24 C
19825.9 C-0.40 C
19836.6 C+0.23 C
19846.4 C+0.02 C
19866.3 C-0.06 C
19876.6 C+0.30 C
19886.0 C-0.35 C
19895.3 C-1.02 C
19907.4 C+1.04 C
19917.4 C+1.05 C
19925.3 C-1.03 C
19935.4 C-0.90 C
19945.7 C-0.63 C
19956.3 C-0.05 C
19965.6 C-0.73 C
19975.7 C-0.61 C
19988.6 C+2.24 C
19997.5 C+1.16 C
20006.5 C+0.12 C
20027.1 C+0.80 C
20035.8 C-0.54 C
20046.0 C-0.30 C
20057.0 C+0.70 C
20067.4 C+1.02 C

The fitted trend in annual mean temperature here over 1967 to 2006 is 0.1 C (-0.1 to 0.3) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.6) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Tully Heiberg Forest
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.1 C (-0.1 to 0.3) per decade0.2 F (-0.1 to 0.6) per decade1967 to 200637Not clearly different from zero
Mean daily maximum0.2 C (-0.1 to 0.4) per decade0.3 F (-0.1 to 0.7) per decade1967 to 200637Not clearly different from zero
Mean daily minimum0.1 C (-0.1 to 0.3) per decade0.2 F (-0.2 to 0.6) per decade1967 to 200637Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1967 to 2007
Yearly extremes at Tully Heiberg Forest: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)33.9 C (93.0 F)199530.6 C (87.1 F)41
Coldest night (TNn)-33.9 C (-29.0 F)1980-25.6 C (-14.1 F)41
Wettest day (Rx1day)126.5 mm (5.0 in)200150.3 mm (2.0 in)41
Wettest five days (Rx5day)152.8 mm (6.0 in)199487.9 mm (3.5 in)41
Longest dry spell (CDD)25 days198312 days41

Hottest day (TXx)

Hottest day (TXx) at Tully Heiberg Forest by year The hottest day of the year at Tully Heiberg Forest, 1967 to 2007. The record is 33.9 C (93.0 F) in 1995, marked on the chart; the median year is 30.6 C (87.1 F). 26283032341970198019902000Record: 33.9 C (93.0 F) in 1995
The hottest day of the year at Tully Heiberg Forest, 1967 to 2007. The record is 33.9 C (93.0 F) in 1995, marked on the chart; the median year is 30.6 C (87.1 F).
Hottest day (TXx) at Tully Heiberg Forest by year
YearHottest day (TXx)
196730.0 C (86.0 F)
196830.6 C (87.1 F)
196932.2 C (90.0 F)
197029.4 C (84.9 F)
197128.9 C (84.0 F)
197228.9 C (84.0 F)
197331.7 C (89.1 F)
197430.6 C (87.1 F)
197531.7 C (89.1 F)
197628.3 C (82.9 F)
197730.6 C (87.1 F)
197832.2 C (90.0 F)
197931.7 C (89.1 F)
198031.7 C (89.1 F)
198130.0 C (86.0 F)
198230.6 C (87.1 F)
198330.0 C (86.0 F)
198429.4 C (84.9 F)
198528.3 C (82.9 F)
198629.4 C (84.9 F)
198731.7 C (89.1 F)
198833.3 C (91.9 F)
198928.9 C (84.0 F)
199031.7 C (89.1 F)
199131.7 C (89.1 F)
199227.8 C (82.0 F)
199330.6 C (87.1 F)
199430.6 C (87.1 F)
199533.9 C (93.0 F)
199631.1 C (88.0 F)
199731.7 C (89.1 F)
199829.4 C (84.9 F)
199932.2 C (90.0 F)
200028.9 C (84.0 F)
200133.3 C (91.9 F)
200233.3 C (91.9 F)
200330.6 C (87.1 F)
200430.0 C (86.0 F)
200532.2 C (90.0 F)
200632.2 C (90.0 F)
200731.1 C (88.0 F)

Coldest night (TNn)

Coldest night (TNn) at Tully Heiberg Forest by year The coldest night of the year at Tully Heiberg Forest, 1967 to 2007. The record is -33.9 C (-29.0 F) in 1980, marked on the chart; the median year is -25.6 C (-14.1 F). -35-30-25-20-151970198019902000Record: -33.9 C (-29.0 F) in 1980
The coldest night of the year at Tully Heiberg Forest, 1967 to 2007. The record is -33.9 C (-29.0 F) in 1980, marked on the chart; the median year is -25.6 C (-14.1 F).
Coldest night (TNn) at Tully Heiberg Forest by year
YearColdest night (TNn)
1967-25.0 C (-13.0 F)
1968-29.4 C (-20.9 F)
1969-22.8 C (-9.0 F)
1970-29.4 C (-20.9 F)
1971-24.4 C (-11.9 F)
1972-25.6 C (-14.1 F)
1973-28.3 C (-18.9 F)
1974-21.1 C (-6.0 F)
1975-25.6 C (-14.1 F)
1976-28.9 C (-20.0 F)
1977-26.1 C (-15.0 F)
1978-22.8 C (-9.0 F)
1979-30.0 C (-22.0 F)
1980-33.9 C (-29.0 F)
1981-28.9 C (-20.0 F)
1982-27.8 C (-18.0 F)
1983-24.4 C (-11.9 F)
1984-23.9 C (-11.0 F)
1985-25.6 C (-14.1 F)
1986-25.0 C (-13.0 F)
1987-28.3 C (-18.9 F)
1988-28.3 C (-18.9 F)
1989-25.6 C (-14.1 F)
1990-22.2 C (-8.0 F)
1991-23.9 C (-11.0 F)
1992-25.6 C (-14.1 F)
1993-26.7 C (-16.1 F)
1994-28.9 C (-20.0 F)
1995-23.3 C (-9.9 F)
1996-23.3 C (-9.9 F)
1997-23.3 C (-9.9 F)
1998-19.4 C (-2.9 F)
1999-23.3 C (-9.9 F)
2000-23.9 C (-11.0 F)
2001-19.4 C (-2.9 F)
2002-21.1 C (-6.0 F)
2003-29.4 C (-20.9 F)
2004-29.4 C (-20.9 F)
2005-27.8 C (-18.0 F)
2006-22.8 C (-9.0 F)
2007-24.4 C (-11.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Tully Heiberg Forest by year The wettest day of the year at Tully Heiberg Forest, 1967 to 2007. The record is 126.5 mm (5.0 in) in 2001, marked on the chart; the median year is 50.3 mm (2.0 in). 2550751001251501970198019902000Record: 126.5 mm (5.0 in) in 2001
The wettest day of the year at Tully Heiberg Forest, 1967 to 2007. The record is 126.5 mm (5.0 in) in 2001, marked on the chart; the median year is 50.3 mm (2.0 in).
Wettest day (Rx1day) at Tully Heiberg Forest by year
YearWettest day (Rx1day)
196766.0 mm (2.6 in)
196861.2 mm (2.4 in)
196966.8 mm (2.6 in)
197038.1 mm (1.5 in)
197150.3 mm (2.0 in)
197268.1 mm (2.7 in)
197331.8 mm (1.3 in)
197472.4 mm (2.9 in)
197567.1 mm (2.6 in)
197664.3 mm (2.5 in)
197750.0 mm (2.0 in)
197833.3 mm (1.3 in)
197944.2 mm (1.7 in)
198047.0 mm (1.9 in)
198190.4 mm (3.6 in)
198231.0 mm (1.2 in)
198349.3 mm (1.9 in)
198456.4 mm (2.2 in)
198542.4 mm (1.7 in)
198674.2 mm (2.9 in)
198737.3 mm (1.5 in)
198858.4 mm (2.3 in)
198954.1 mm (2.1 in)
199035.3 mm (1.4 in)
199133.5 mm (1.3 in)
199241.4 mm (1.6 in)
199355.9 mm (2.2 in)
1994107.7 mm (4.2 in)
199544.7 mm (1.8 in)
199690.4 mm (3.6 in)
199731.8 mm (1.3 in)
199847.2 mm (1.9 in)
199989.2 mm (3.5 in)
200044.5 mm (1.8 in)
2001126.5 mm (5.0 in)
200275.7 mm (3.0 in)
200346.2 mm (1.8 in)
200447.5 mm (1.9 in)
200556.9 mm (2.2 in)
200681.8 mm (3.2 in)
200741.4 mm (1.6 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Tully Heiberg Forest by year The wettest five days of the year at Tully Heiberg Forest, 1967 to 2007. The record is 152.8 mm (6.0 in) in 1994, marked on the chart; the median year is 87.9 mm (3.5 in). 0501001502001970198019902000Record: 152.8 mm (6.0 in) in 1994
The wettest five days of the year at Tully Heiberg Forest, 1967 to 2007. The record is 152.8 mm (6.0 in) in 1994, marked on the chart; the median year is 87.9 mm (3.5 in).
Wettest five days (Rx5day) at Tully Heiberg Forest by year
YearWettest five days (Rx5day)
196780.0 mm (3.1 in)
196894.6 mm (3.7 in)
1969120.4 mm (4.7 in)
197087.9 mm (3.5 in)
197167.3 mm (2.6 in)
1972125.5 mm (4.9 in)
197377.7 mm (3.1 in)
197480.6 mm (3.2 in)
1975119.7 mm (4.7 in)
197688.4 mm (3.5 in)
197791.3 mm (3.6 in)
197851.0 mm (2.0 in)
197976.4 mm (3.0 in)
198052.6 mm (2.1 in)
1981138.7 mm (5.5 in)
198263.8 mm (2.5 in)
198390.4 mm (3.6 in)
198477.5 mm (3.1 in)
198569.9 mm (2.8 in)
1986108.5 mm (4.3 in)
198752.5 mm (2.1 in)
198894.5 mm (3.7 in)
198981.6 mm (3.2 in)
199062.8 mm (2.5 in)
199180.3 mm (3.2 in)
199280.0 mm (3.1 in)
1993104.1 mm (4.1 in)
1994152.8 mm (6.0 in)
199578.0 mm (3.1 in)
1996101.5 mm (4.0 in)
199747.4 mm (1.9 in)
199892.9 mm (3.7 in)
1999113.8 mm (4.5 in)
2000109.7 mm (4.3 in)
2001144.8 mm (5.7 in)
200279.0 mm (3.1 in)
200394.5 mm (3.7 in)
200487.9 mm (3.5 in)
2005109.7 mm (4.3 in)
2006134.3 mm (5.3 in)
200751.8 mm (2.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Tully Heiberg Forest by year The longest dry spell of the year at Tully Heiberg Forest, 1967 to 2007. The record is 25 days in 1983, marked on the chart; the median year is 12 days. 5101520251970198019902000Record: 25 days in 1983
The longest dry spell of the year at Tully Heiberg Forest, 1967 to 2007. The record is 25 days in 1983, marked on the chart; the median year is 12 days.
Longest dry spell (CDD) at Tully Heiberg Forest by year
YearLongest dry spell (CDD)
196710 days
196820 days
196915 days
197016 days
197116 days
19729 days
19739 days
197413 days
197510 days
197610 days
197714 days
197813 days
197910 days
198014 days
19819 days
198211 days
198325 days
19849 days
198513 days
198612 days
198722 days
19889 days
198911 days
199011 days
199113 days
199211 days
199312 days
199411 days
199515 days
199612 days
199715 days
199813 days
199916 days
200010 days
200116 days
200216 days
200313 days
200412 days
200513 days
200611 days
20077 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

37 years with a frost

Across 37 years with a frost, the median last spring frost at Tully Heiberg Forest falls on 18 May and the median first autumn frost on 3 October, which leaves a median of 134 days between them.

Fitted over all years, the growing season changes by +0.5 days per decade at this station.

Frost dates and growing season at Tully Heiberg Forest
MeasureMedian, all yearsEarliest periodRecent period (1974 to 2006)Recent against earliestFitted trend
Last spring frost18 Mayn/a18 Mayn/a-1.1 days per decade
First autumn frost3 Octobern/a3 Octobern/a-0.6 days per decade
Growing days134 daysn/a133 daysn/a+0.5 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

39 years, 1967 to 2006

A day with at least 53.7 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 136.4 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Tully Heiberg Forest: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years53.7 mm (2.1 in)
5 years72.9 mm (2.9 in)
10 years86.7 mm (3.4 in)
25 years105.5 mm (4.2 in)
50 years120.6 mm (4.7 in)Longer than the 39 years of record
100 years136.4 mm (5.4 in)Longer than the 39 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, 39 years of values from 1967 to 2006.

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: 126.5 mm (5.0 in) in 2001; 107.7 mm (4.2 in) in 1994; 90.4 mm (3.6 in) in 1981.

Download the Data

  • Data for Tully Heiberg Forest standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Tully Heiberg Forest 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 (2025-12-31).