Built 2026-10-19 (19 October 2026)

Donegal 2 NW Threshold Days by Year (USC00362183)

15 fixed thresholds counted per year at Donegal 2 NW (USC00362183): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Donegal 2 NW Thresholds

  • Donegal 2 NW: days with 10 mm (0.39 in) or more of precipitation in 61 years, most in 1975 with 54.
  • Donegal 2 NW: days with 25 mm (0.98 in) or more of precipitation in 61 years, most in 1971 with 16.
  • Donegal 2 NW: days with a maximum temperature at or below 0 C (32 F) in 53 years, most in 1960 with 73.
  • Donegal 2 NW: days with a maximum temperature at or above 30 C (86 F) in 52 years, most in 2020 with 36.
  • 15 fixed thresholds have at least one qualifying day at Donegal 2 NW.
52 years with a qualifying day
Days at or above 30 C (86 F) per year at Donegal 2 NW Days per year at Donegal 2 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2020. 0102030401944: 301945: 231946: 91947: 121949: 91950: 21951: 121952: 201953: 241954: 111955: 151956: 41957: 171958: 11959: 91960: 41961: 171962: 171963: 81964: 191965: 171966: 251967: 161968: 231969: 91970: 111971: 81972: 101974: 21975: 141976: 71980: 121981: 71983: 271984: 161986: 41987: 141988: 341989: 42009: 52015: 132016: 152017: 132018: 112019: 52020: 362021: 162022: 122023: 142024: 312025: 222026: 16194419511957196319691976198720172023
Days per year at Donegal 2 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 36 in 2020.
Days at or above 30 C (86 F) per year at Donegal 2 NW
YearDaysDecade average
19443016.6
19452316.6
1946916.6
19471216.6
1949916.6
1950211.5
19511211.5
19522011.5
19532411.5
19541111.5
19551511.5
1956411.5
19571711.5
1958111.5
1959911.5
1960415.5
19611715.5
19621715.5
1963815.5
19641915.5
19651715.5
19662515.5
19671615.5
19682315.5
1969915.5
1970118.7
197188.7
1972108.7
197428.7
1975148.7
197678.7
19801214.8
1981714.8
19832714.8
19841614.8
1986414.8
19871414.8
19883414.8
1989414.8
200955
20151311.4
20161511.4
20171311.4
20181111.4
2019511.4
20203621
20211621
20221221
20231421
20243121
20252221
20261621
First to last qualifying date each year at Donegal 2 NW For each year, a bar from the first to the last day at Donegal 2 NW meeting 30 C (86 F). 1944: 26 May 1944 to 2 September 19441945: 16 May 1945 to 8 September 19451946: 25 June 1946 to 9 September 19461947: 10 June 1947 to 15 September 19471949: 24 June 1949 to 11 August 19491950: 26 June 1950 to 27 June 19501951: 3 June 1951 to 3 October 19511952: 15 June 1952 to 14 September 19521953: 4 May 1953 to 30 September 19531954: 14 June 1954 to 6 September 19541955: 3 July 1955 to 17 September 19551956: 13 June 1956 to 2 July 19561957: 23 May 1957 to 2 September 19571958: 4 July 1958 to 4 July 19581959: 10 June 1959 to 8 September 19591960: 23 April 1960 to 30 August 19601961: 12 June 1961 to 25 September 19611962: 1 May 1962 to 31 August 19621963: 26 June 1963 to 28 July 19631964: 7 May 1964 to 10 September 19641965: 28 June 1965 to 22 September 19651966: 6 June 1966 to 3 September 19661967: 28 May 1967 to 26 July 19671968: 5 June 1968 to 24 August 19681969: 29 May 1969 to 1 September 19691970: 30 April 1970 to 24 September 19701971: 28 June 1971 to 9 September 19711972: 24 May 1972 to 17 September 19721974: 5 July 1974 to 17 August 19741975: 23 June 1975 to 30 August 19751976: 19 April 1976 to 24 August 19761980: 16 July 1980 to 2 September 19801981: 15 June 1981 to 21 July 19811983: 13 June 1983 to 21 September 19831984: 6 June 1984 to 23 September 19841986: 7 July 1986 to 21 July 19861987: 30 May 1987 to 18 August 19871988: 15 June 1988 to 18 August 19881989: 12 July 1989 to 26 July 19892009: 26 June 2009 to 19 August 20092015: 9 May 2015 to 5 September 20152016: 13 July 2016 to 30 August 20162017: 18 May 2017 to 27 September 20172018: 30 May 2018 to 6 September 20182019: 10 July 2019 to 18 August 20192020: 10 June 2020 to 26 August 20202021: 22 May 2021 to 30 August 20212022: 16 June 2022 to 30 August 20222023: 2 June 2023 to 7 September 20232024: 18 June 2024 to 31 August 20242025: 24 June 2025 to 17 August 20252026: 12 June 2026 to 4 September 202619441952195919661974198620172024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Donegal 2 NW meeting 30 C (86 F).
First to last qualifying date each year at Donegal 2 NW
YearFirst dateLast date
19441944-05-261944-09-02
19451945-05-161945-09-08
19461946-06-251946-09-09
19471947-06-101947-09-15
19491949-06-241949-08-11
19501950-06-261950-06-27
19511951-06-031951-10-03
19521952-06-151952-09-14
19531953-05-041953-09-30
19541954-06-141954-09-06
19551955-07-031955-09-17
19561956-06-131956-07-02
19571957-05-231957-09-02
19581958-07-041958-07-04
19591959-06-101959-09-08
19601960-04-231960-08-30
19611961-06-121961-09-25
19621962-05-011962-08-31
19631963-06-261963-07-28
19641964-05-071964-09-10
19651965-06-281965-09-22
19661966-06-061966-09-03
19671967-05-281967-07-26
19681968-06-051968-08-24
19691969-05-291969-09-01
19701970-04-301970-09-24
19711971-06-281971-09-09
19721972-05-241972-09-17
19741974-07-051974-08-17
19751975-06-231975-08-30
19761976-04-191976-08-24
19801980-07-161980-09-02
19811981-06-151981-07-21
19831983-06-131983-09-21
19841984-06-061984-09-23
19861986-07-071986-07-21
19871987-05-301987-08-18
19881988-06-151988-08-18
19891989-07-121989-07-26
20092009-06-262009-08-19
20152015-05-092015-09-05
20162016-07-132016-08-30
20172017-05-182017-09-27
20182018-05-302018-09-06
20192019-07-102019-08-18
20202020-06-102020-08-26
20212021-05-222021-08-30
20222022-06-162022-08-30
20232023-06-022023-09-07
20242024-06-182024-08-31
20252025-06-242025-08-17
20262026-06-122026-09-04

Every Fixed Threshold

Fixed thresholds at Donegal 2 NW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5236202016
35 C (95 F): Days8319881
90 F (32.2 C): Days341819442
0 C (32 F): Ice days (max5373196028
0 C (32 F): Frost days (min51179195664
-10 C (14 F): Days with min5163196029
-20 C (-4 F): Days with min431520148
20 C (68 F): Tropical nights (min292020208
10 mm (0.39 in): Days with 10 mm or more rain6154197553
25 mm (0.98 in): Days with 25 mm or more rain6116197119
50 mm (1.97 in): Days with 50 mm or more rain38419713
100 mm (3.94 in): Days with 100 mm or more rain9119461
10 cm (3.9 in): Days with 10 cm or more snowfall421019585
25 cm (9.8 in): Days with 25 cm or more snowfall7319501
50 cm (19.7 in): Days with 50 cm or more snowfall1120161

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.

Download the Data

  • Data for Donegal 2 NW 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).