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Built 2026-10-19 (19 October 2026)

Dover-Foxcroft Wwtp Threshold Days by Year (USC00171975)

16 fixed thresholds counted per year at Dover-Foxcroft Wwtp (USC00171975): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dover-Foxcroft Wwtp Thresholds

  • Dover-Foxcroft Wwtp: days with a maximum temperature at or above 30 C (86 F) in 49 years, most in 2020 with 29.
  • Dover-Foxcroft Wwtp: days with a maximum temperature at or below 0 C (32 F) in 49 years, most in 1989 with 95.
  • Dover-Foxcroft Wwtp: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1981 with 47.
  • Dover-Foxcroft Wwtp: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 2005 with 19.
  • 16 fixed thresholds have at least one qualifying day at Dover-Foxcroft Wwtp.
49 years with a qualifying day
Days at or above 30 C (86 F) per year at Dover-Foxcroft Wwtp Days per year at Dover-Foxcroft Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2020. 01020301977: 141978: 121979: 181980: 91981: 51982: 111983: 151984: 131985: 131986: 31987: 81988: 221989: 111990: 131991: 141992: 31993: 91994: 81995: 211996: 31997: 61998: 91999: 212000: 32001: 172002: 152003: 92004: 42005: 102006: 32008: 52009: 92010: 222011: 102012: 102013: 162014: 122015: 142016: 152017: 142018: 212019: 92020: 292021: 172022: 212023: 102024: 182025: 242026: 181977198219871992199720022008201320182023
Days per year at Dover-Foxcroft Wwtp with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 29 in 2020.
Days at or above 30 C (86 F) per year at Dover-Foxcroft Wwtp
YearDaysDecade average
19771414.7
19781214.7
19791814.7
1980911
1981511
19821111
19831511
19841311
19851311
1986311
1987811
19882211
19891111
19901310.7
19911410.7
1992310.7
1993910.7
1994810.7
19952110.7
1996310.7
1997610.7
1998910.7
19992110.7
200038.3
2001178.3
2002158.3
200398.3
200448.3
2005108.3
200638.3
200858.3
200998.3
20102214.3
20111014.3
20121014.3
20131614.3
20141214.3
20151414.3
20161514.3
20171414.3
20182114.3
2019914.3
20202919.6
20211719.6
20222119.6
20231019.6
20241819.6
20252419.6
20261819.6
First to last qualifying date each year at Dover-Foxcroft Wwtp For each year, a bar from the first to the last day at Dover-Foxcroft Wwtp meeting 30 C (86 F). 1977: 18 May 1977 to 30 August 19771978: 29 May 1978 to 18 August 19781979: 10 May 1979 to 5 August 19791980: 25 June 1980 to 27 August 19801981: 7 July 1981 to 3 August 19811982: 6 July 1982 to 17 August 19821983: 23 June 1983 to 8 September 19831984: 9 June 1984 to 8 August 19841985: 23 June 1985 to 16 August 19851986: 20 May 1986 to 27 July 19861987: 1 June 1987 to 19 August 19871988: 13 June 1988 to 13 August 19881989: 19 May 1989 to 10 September 19891990: 17 July 1990 to 28 August 19901991: 25 May 1991 to 31 August 19911992: 22 May 1992 to 24 May 19921993: 15 June 1993 to 29 August 19931994: 17 June 1994 to 25 July 19941995: 2 June 1995 to 22 August 19951996: 7 August 1996 to 6 September 19961997: 30 June 1997 to 17 August 19971998: 25 June 1998 to 11 August 19981999: 31 May 1999 to 5 September 19992000: 18 June 2000 to 29 June 20002001: 4 May 2001 to 24 August 20012002: 3 July 2002 to 11 September 20022003: 26 June 2003 to 22 August 20032004: 9 June 2004 to 5 August 20042005: 10 June 2005 to 6 August 20052006: 16 July 2006 to 18 July 20062008: 9 June 2008 to 10 July 20082009: 29 April 2009 to 20 August 20092010: 25 May 2010 to 4 September 20102011: 10 June 2011 to 24 July 20112012: 21 June 2012 to 9 August 20122013: 1 June 2013 to 12 September 20132014: 9 June 2014 to 6 September 20142015: 27 May 2015 to 19 September 20152016: 27 June 2016 to 10 September 20162017: 19 May 2017 to 27 September 20172018: 3 May 2018 to 4 September 20182019: 5 July 2019 to 1 August 20192020: 23 May 2020 to 14 August 20202021: 27 May 2021 to 27 August 20212022: 14 May 2022 to 31 August 20222023: 29 May 2023 to 8 September 20232024: 23 May 2024 to 11 August 20242025: 6 June 2025 to 7 October 20252026: 20 May 2026 to 10 August 20261977198419911998200520132020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dover-Foxcroft Wwtp meeting 30 C (86 F).
First to last qualifying date each year at Dover-Foxcroft Wwtp
YearFirst dateLast date
19771977-05-181977-08-30
19781978-05-291978-08-18
19791979-05-101979-08-05
19801980-06-251980-08-27
19811981-07-071981-08-03
19821982-07-061982-08-17
19831983-06-231983-09-08
19841984-06-091984-08-08
19851985-06-231985-08-16
19861986-05-201986-07-27
19871987-06-011987-08-19
19881988-06-131988-08-13
19891989-05-191989-09-10
19901990-07-171990-08-28
19911991-05-251991-08-31
19921992-05-221992-05-24
19931993-06-151993-08-29
19941994-06-171994-07-25
19951995-06-021995-08-22
19961996-08-071996-09-06
19971997-06-301997-08-17
19981998-06-251998-08-11
19991999-05-311999-09-05
20002000-06-182000-06-29
20012001-05-042001-08-24
20022002-07-032002-09-11
20032003-06-262003-08-22
20042004-06-092004-08-05
20052005-06-102005-08-06
20062006-07-162006-07-18
20082008-06-092008-07-10
20092009-04-292009-08-20
20102010-05-252010-09-04
20112011-06-102011-07-24
20122012-06-212012-08-09
20132013-06-012013-09-12
20142014-06-092014-09-06
20152015-05-272015-09-19
20162016-06-272016-09-10
20172017-05-192017-09-27
20182018-05-032018-09-04
20192019-07-052019-08-01
20202020-05-232020-08-14
20212021-05-272021-08-27
20222022-05-142022-08-31
20232023-05-292023-09-08
20242024-05-232024-08-11
20252025-06-062025-10-07
20262026-05-202026-08-10

Every Fixed Threshold

Fixed thresholds at Dover-Foxcroft Wwtp
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days4929202018
35 C (95 F): Days6420254
90 F (32.2 C): Days431020134
0 C (32 F): Ice days (max4995198946
0 C (32 F): Frost days (min432061992122
-10 C (14 F): Days with min43105197858
-20 C (-4 F): Days with min4350201419
-30 C (-22 F): Days with min15619944
20 C (68 F): Tropical nights (min19820242
10 mm (0.39 in): Days with 10 mm or more rain4947198118
25 mm (0.98 in): Days with 25 mm or more rain491920056
50 mm (1.97 in): Days with 50 mm or more rain36520123
100 mm (3.94 in): Days with 100 mm or more rain1120121
10 cm (3.9 in): Days with 10 cm or more snowfall491419772
25 cm (9.8 in): Days with 25 cm or more snowfall31319841
50 cm (19.7 in): Days with 50 cm or more snowfall3119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for Dover-Foxcroft Wwtp 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). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).