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Built 2026-10-17 (17 October 2026)

Little Hartley (Roscommon) Threshold Days by Year

3 fixed thresholds counted per year at Little Hartley (Roscommon) (ASN00063270): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Little Hartley (Roscommon) Thresholds

  • Little Hartley (Roscommon): days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 2020 with 30.
  • Little Hartley (Roscommon): days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 2007 with 12.
  • Little Hartley (Roscommon): days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1996 with 2.
  • 3 fixed thresholds have at least one qualifying day at Little Hartley (Roscommon).
23 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Little Hartley (Roscommon) Days per year at Little Hartley (Roscommon) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2020. 01020301996: 191997: 121998: 261999: 172000: 192001: 172002: 152003: 212004: 152005: 282006: 82007: 282008: 212009: 152016: 202017: 182018: 132019: 172020: 302021: 232023: 132024: 202026: 1119961999200220052008201720202024
Days per year at Little Hartley (Roscommon) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2020.
Days with 10 mm (0.39 in) or more of precipitation per year at Little Hartley (Roscommon)
YearDaysDecade average
19961918.5
19971218.5
19982618.5
19991718.5
20001918.7
20011718.7
20021518.7
20032118.7
20041518.7
20052818.7
2006818.7
20072818.7
20082118.7
20091518.7
20162017
20171817
20181317
20191717
20203019.4
20212319.4
20231319.4
20242019.4
20261119.4
First to last qualifying date each year at Little Hartley (Roscommon) For each year, a bar from the first to the last day at Little Hartley (Roscommon) meeting 10 mm (0.39 in). 1996: 3 January 1996 to 29 December 19961997: 24 January 1997 to 10 December 19971998: 10 January 1998 to 16 December 19981999: 23 January 1999 to 10 December 19992000: 8 March 2000 to 19 December 20002001: 31 January 2001 to 8 December 20012002: 7 January 2002 to 11 December 20022003: 11 February 2003 to 13 December 20032004: 14 January 2004 to 25 December 20042005: 16 January 2005 to 17 December 20052006: 12 January 2006 to 7 September 20062007: 18 January 2007 to 21 December 20072008: 19 January 2008 to 28 December 20082009: 12 January 2009 to 28 December 20092016: 6 January 2016 to 25 December 20162017: 21 January 2017 to 6 December 20172018: 9 January 2018 to 22 December 20182019: 4 January 2019 to 3 November 20192020: 20 January 2020 to 30 December 20202021: 2 January 2021 to 10 December 20212023: 16 January 2023 to 24 December 20232024: 5 January 2024 to 8 December 20242026: 1 January 2026 to 28 May 202619961999200220052008201720202024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Little Hartley (Roscommon) meeting 10 mm (0.39 in).
First to last qualifying date each year at Little Hartley (Roscommon)
YearFirst dateLast date
19961996-01-031996-12-29
19971997-01-241997-12-10
19981998-01-101998-12-16
19991999-01-231999-12-10
20002000-03-082000-12-19
20012001-01-312001-12-08
20022002-01-072002-12-11
20032003-02-112003-12-13
20042004-01-142004-12-25
20052005-01-162005-12-17
20062006-01-122006-09-07
20072007-01-182007-12-21
20082008-01-192008-12-28
20092009-01-122009-12-28
20162016-01-062016-12-25
20172017-01-212017-12-06
20182018-01-092018-12-22
20192019-01-042019-11-03
20202020-01-202020-12-30
20212021-01-022021-12-10
20232023-01-162023-12-24
20242024-01-052024-12-08
20262026-01-012026-05-28

Every Fixed Threshold

Fixed thresholds at Little Hartley (Roscommon)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2330202011
25 mm (0.98 in): Days with 25 mm or more rain231220072
50 mm (1.97 in): Days with 50 mm or more rain16219961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1996.

Download the Data

  • Data for Little Hartley (Roscommon) 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). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).