Aitkin 2E Threshold Days by Year (USC00210059)

17 fixed thresholds counted per year at Aitkin 2E (USC00210059): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Aitkin 2E Thresholds

Aitkin 2E: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1965 with 34.
Aitkin 2E: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1953 with 11.
Aitkin 2E: days with 10 cm (3.9 in) or more of snowfall in 44 years, most in 1997 with 10.
Aitkin 2E: days with a maximum temperature at or above 30 C (86 F) in 33 years, most in 2021 with 38.
17 fixed thresholds have at least one qualifying day at Aitkin 2E.

Days at or above 30 C (86 F)

33 years with a qualifying day

Days per year at Aitkin 2E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 2021.

Days at or above 30 C (86 F) per year at Aitkin 2E
Year	Days	Decade average
1959	28	28
1960	26	17
1961	31	17
1962	2	17
1963	18	17
1965	8	17
1972	10	17.8
1973	11	17.8
1974	16	17.8
1976	34	17.8
1978	18	17.8
1981	6	14
1985	4	14
1986	13	14
1988	30	14
1989	17	14
1992	4	7.5
1993	4	7.5
1994	2	7.5
1995	13	7.5
1996	7	7.5
1997	9	7.5
1998	6	7.5
1999	15	7.5
2001	22	12.5
2002	17	12.5
2003	9	12.5
2004	7	12.5
2005	18	12.5
2009	2	12.5
2010	10	10
2020	16	27
2021	38	27

For each year, a bar from the first to the last day at Aitkin 2E meeting 30 C (86 F).

First to last qualifying date each year at Aitkin 2E
Year	First date	Last date
1959	1959-05-01	1959-09-07
1960	1960-07-08	1960-09-07
1961	1961-05-31	1961-09-09
1962	1962-06-28	1962-08-02
1963	1963-06-03	1963-08-08
1965	1965-06-27	1965-08-14
1972	1972-05-18	1972-08-29
1973	1973-06-09	1973-08-29
1974	1974-06-28	1974-07-19
1976	1976-06-06	1976-09-11
1978	1978-05-25	1978-09-07
1981	1981-07-05	1981-08-13
1985	1985-06-09	1985-07-08
1986	1986-05-29	1986-07-24
1988	1988-05-31	1988-08-16
1989	1989-06-20	1989-08-11
1992	1992-06-12	1992-08-09
1993	1993-06-21	1993-08-26
1994	1994-06-14	1994-08-25
1995	1995-06-17	1995-08-19
1996	1996-06-11	1996-08-07
1997	1997-06-24	1997-08-04
1998	1998-05-19	1998-09-17
1999	1999-06-26	1999-08-27
2001	2001-05-14	2001-08-23
2002	2002-05-31	2002-09-09
2003	2003-06-17	2003-09-09
2004	2004-06-08	2004-09-04
2005	2005-06-24	2005-09-12
2009	2009-05-21	2009-06-24
2010	2010-05-25	2010-08-31
2020	2020-06-02	2020-07-25
2021	2021-05-02	2021-08-25

Every Fixed Threshold

Fixed thresholds at Aitkin 2E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	33	38	2021	38
35 C (95 F): Days	5	5	1988	3
90 F (32.2 C): Days	28	15	2021	15
100 F (37.8 C): Days	1	2	1976	2
0 C (32 F): Ice days (max	33	118	1996	73
0 C (32 F): Frost days (min	33	213	2002	176
-10 C (14 F): Days with min	33	107	1996	71
-20 C (-4 F): Days with min	33	58	1985	29
-30 C (-22 F): Days with min	30	23	1996	10
-40 C (-40 F): Days with min	2	2	1972	2
20 C (68 F): Tropical nights (min	27	7	1988	7
10 mm (0.39 in): Days with 10 mm or more rain	57	34	1965	21
25 mm (0.98 in): Days with 25 mm or more rain	56	11	1953	6
50 mm (1.97 in): Days with 50 mm or more rain	32	4	1952	2
100 mm (3.94 in): Days with 100 mm or more rain	4	2	1952	1
10 cm (3.9 in): Days with 10 cm or more snowfall	44	10	1997	2
25 cm (9.8 in): Days with 25 cm or more snowfall	8	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for Aitkin 2E 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Aitkin 2E Threshold Days by Year (USC00210059)

Key Facts for Aitkin 2E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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