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Built 2026-10-19 (19 October 2026)

Newcomb Threshold Days by Year (USC00305714)

15 fixed thresholds counted per year at Newcomb (USC00305714): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Newcomb Thresholds

  • Newcomb: days with 10 cm (3.9 in) or more of snowfall in 66 years, most in 1975 with 13.
  • Newcomb: days with 10 mm (0.39 in) or more of precipitation in 59 years, most in 1977 with 52.
  • Newcomb: days with 25 mm (0.98 in) or more of precipitation in 59 years, most in 1990 with 13.
  • Newcomb: days with a maximum temperature at or below 0 C (32 F) in 40 years, most in 2003 with 96.
  • 15 fixed thresholds have at least one qualifying day at Newcomb.
35 years with a qualifying day
Days at or above 30 C (86 F) per year at Newcomb Days per year at Newcomb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1988. 01020301985: 31986: 21987: 111988: 221989: 61990: 11991: 71993: 21995: 71997: 51999: 72000: 12001: 92002: 102003: 42005: 92006: 62007: 12010: 82011: 82012: 92013: 82014: 22015: 42016: 52017: 42018: 142019: 32020: 112021: 42022: 72023: 42024: 52025: 132026: 5198519891995200120062012201620202024
Days per year at Newcomb with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1988.
Days at or above 30 C (86 F) per year at Newcomb
YearDaysDecade average
198538.8
198628.8
1987118.8
1988228.8
198968.8
199014.8
199174.8
199324.8
199574.8
199754.8
199974.8
200015.7
200195.7
2002105.7
200345.7
200595.7
200665.7
200715.7
201086.5
201186.5
201296.5
201386.5
201426.5
201546.5
201656.5
201746.5
2018146.5
201936.5
2020117
202147
202277
202347
202457
2025137
202657
First to last qualifying date each year at Newcomb For each year, a bar from the first to the last day at Newcomb meeting 30 C (86 F). 1985: 26 July 1985 to 15 August 19851986: 7 July 1986 to 8 July 19861987: 30 May 1987 to 17 August 19871988: 12 June 1988 to 14 August 19881989: 19 May 1989 to 27 July 19891990: 28 April 1990 to 28 April 19901991: 17 May 1991 to 31 August 19911993: 5 July 1993 to 6 July 19931995: 19 June 1995 to 16 August 19951997: 14 July 1997 to 22 July 19971999: 7 June 1999 to 5 September 19992000: 11 June 2000 to 11 June 20002001: 15 June 2001 to 10 September 20012002: 3 July 2002 to 11 September 20022003: 24 June 2003 to 27 June 20032005: 7 June 2005 to 17 July 20052006: 31 May 2006 to 3 August 20062007: 8 September 2007 to 8 September 20072010: 27 May 2010 to 4 September 20102011: 1 June 2011 to 24 July 20112012: 21 June 2012 to 5 August 20122013: 1 June 2013 to 12 September 20132014: 3 June 2014 to 2 July 20142015: 20 July 2015 to 8 September 20152016: 28 May 2016 to 13 August 20162017: 18 May 2017 to 13 June 20172018: 19 June 2018 to 6 September 20182019: 16 June 2019 to 21 July 20192020: 27 May 2020 to 12 August 20202021: 22 May 2021 to 30 June 20212022: 14 May 2022 to 9 August 20222023: 2 June 2023 to 7 July 20232024: 23 May 2024 to 22 June 20242025: 5 June 2025 to 17 August 20252026: 19 May 2026 to 15 July 20261985199019992005201220172022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Newcomb meeting 30 C (86 F).
First to last qualifying date each year at Newcomb
YearFirst dateLast date
19851985-07-261985-08-15
19861986-07-071986-07-08
19871987-05-301987-08-17
19881988-06-121988-08-14
19891989-05-191989-07-27
19901990-04-281990-04-28
19911991-05-171991-08-31
19931993-07-051993-07-06
19951995-06-191995-08-16
19971997-07-141997-07-22
19991999-06-071999-09-05
20002000-06-112000-06-11
20012001-06-152001-09-10
20022002-07-032002-09-11
20032003-06-242003-06-27
20052005-06-072005-07-17
20062006-05-312006-08-03
20072007-09-082007-09-08
20102010-05-272010-09-04
20112011-06-012011-07-24
20122012-06-212012-08-05
20132013-06-012013-09-12
20142014-06-032014-07-02
20152015-07-202015-09-08
20162016-05-282016-08-13
20172017-05-182017-06-13
20182018-06-192018-09-06
20192019-06-162019-07-21
20202020-05-272020-08-12
20212021-05-222021-06-30
20222022-05-142022-08-09
20232023-06-022023-07-07
20242024-05-232024-06-22
20252025-06-052025-08-17
20262026-05-192026-07-15

Every Fixed Threshold

Fixed thresholds at Newcomb
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days352219885
90 F (32.2 C): Days13919883
0 C (32 F): Ice days (max4096200358
0 C (32 F): Frost days (min362181987116
-10 C (14 F): Days with min3697198856
-20 C (-4 F): Days with min3651198829
-30 C (-22 F): Days with min23820031
20 C (68 F): Tropical nights (min15420051
10 mm (0.39 in): Days with 10 mm or more rain5952197726
25 mm (0.98 in): Days with 25 mm or more rain591319905
50 mm (1.97 in): Days with 50 mm or more rain34319591
100 mm (3.94 in): Days with 100 mm or more rain1119851
10 cm (3.9 in): Days with 10 cm or more snowfall661319754
25 cm (9.8 in): Days with 25 cm or more snowfall32320221
50 cm (19.7 in): Days with 50 cm or more snowfall1119931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1985.

Download the Data

  • Data for Newcomb 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).