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Built 2026-10-19 (19 October 2026)

Boone 1 SE Threshold Days by Year (USC00310982)

14 fixed thresholds counted per year at Boone 1 SE (USC00310982): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boone 1 SE Thresholds

  • Boone 1 SE: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 2003 with 64.
  • Boone 1 SE: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 2018 with 31.
  • Boone 1 SE: days with a maximum temperature at or below 0 C (32 F) in 45 years, most in 2010 with 44.
  • Boone 1 SE: nights with a minimum temperature at or below 0 C (32 F) in 45 years, most in 2000 with 147.
  • 14 fixed thresholds have at least one qualifying day at Boone 1 SE.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Boone 1 SE Days per year at Boone 1 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2010. 01020301983: 41987: 21988: 31993: 21998: 101999: 92000: 32001: 32002: 92003: 12005: 122006: 62007: 112008: 42009: 12010: 232011: 32012: 62016: 62018: 12020: 32021: 12022: 32023: 52024: 62025: 22026: 7198319932000200320072010201620212024
Days per year at Boone 1 SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 23 in 2010.
Days at or above 30 C (86 F) per year at Boone 1 SE
YearDaysDecade average
198343
198723
198833
199327
1998107
199997
200035.6
200135.6
200295.6
200315.6
2005125.6
200665.6
2007115.6
200845.6
200915.6
2010237.8
201137.8
201267.8
201667.8
201817.8
202033.9
202113.9
202233.9
202353.9
202463.9
202523.9
202673.9
First to last qualifying date each year at Boone 1 SE For each year, a bar from the first to the last day at Boone 1 SE meeting 30 C (86 F). 1983: 20 August 1983 to 23 August 19831987: 22 July 1987 to 26 August 19871988: 16 July 1988 to 18 August 19881993: 8 July 1993 to 9 July 19931998: 23 June 1998 to 7 September 19981999: 6 July 1999 to 14 August 19992000: 12 June 2000 to 14 June 20002001: 9 August 2001 to 12 August 20012002: 6 July 2002 to 24 August 20022003: 27 August 2003 to 27 August 20032005: 15 June 2005 to 22 August 20052006: 23 June 2006 to 5 August 20062007: 8 August 2007 to 26 August 20072008: 7 June 2008 to 12 July 20082009: 11 August 2009 to 11 August 20092010: 20 June 2010 to 14 August 20102011: 1 June 2011 to 3 September 20112012: 29 June 2012 to 9 July 20122016: 24 July 2016 to 29 July 20162018: 19 June 2018 to 19 June 20182020: 19 July 2020 to 22 July 20202021: 25 May 2021 to 25 May 20212022: 16 June 2022 to 24 July 20222023: 28 July 2023 to 6 September 20232024: 27 June 2024 to 29 August 20242025: 25 June 2025 to 26 June 20252026: 2 July 2026 to 5 September 20261983199820022007201120202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Boone 1 SE meeting 30 C (86 F).
First to last qualifying date each year at Boone 1 SE
YearFirst dateLast date
19831983-08-201983-08-23
19871987-07-221987-08-26
19881988-07-161988-08-18
19931993-07-081993-07-09
19981998-06-231998-09-07
19991999-07-061999-08-14
20002000-06-122000-06-14
20012001-08-092001-08-12
20022002-07-062002-08-24
20032003-08-272003-08-27
20052005-06-152005-08-22
20062006-06-232006-08-05
20072007-08-082007-08-26
20082008-06-072008-07-12
20092009-08-112009-08-11
20102010-06-202010-08-14
20112011-06-012011-09-03
20122012-06-292012-07-09
20162016-07-242016-07-29
20182018-06-192018-06-19
20202020-07-192020-07-22
20212021-05-252021-05-25
20222022-06-162022-07-24
20232023-07-282023-09-06
20242024-06-272024-08-29
20252025-06-252025-06-26
20262026-07-022026-09-05

Every Fixed Threshold

Fixed thresholds at Boone 1 SE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days272320107
90 F (32.2 C): Days7420102
0 C (32 F): Ice days (max4544201016
0 C (32 F): Frost days (min45147200075
-10 C (14 F): Days with min4532201014
-20 C (-4 F): Days with min12519942
-30 C (-22 F): Days with min1119851
20 C (68 F): Tropical nights (min14419993
10 mm (0.39 in): Days with 10 mm or more rain4664200337
25 mm (0.98 in): Days with 25 mm or more rain4631201812
50 mm (1.97 in): Days with 50 mm or more rain451020184
100 mm (3.94 in): Days with 100 mm or more rain18320181
10 cm (3.9 in): Days with 10 cm or more snowfall37819872
25 cm (9.8 in): Days with 25 cm or more snowfall7219931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1983.

Download the Data

  • Data for Boone 1 SE 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).