Niles Threshold Days by Year (USC00205892)

16 fixed thresholds counted per year at Niles (USC00205892): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Niles Thresholds

Niles: days with 10 mm (0.39 in) or more of precipitation in 83 years, most in 1954 with 46.
Niles: days with 25 mm (0.98 in) or more of precipitation in 83 years, most in 2018 with 18.
Niles: days with 10 cm (3.9 in) or more of snowfall in 77 years, most in 2014 with 12.
Niles: days with 50 mm (1.97 in) or more of precipitation in 59 years, most in 1951 with 4.
16 fixed thresholds have at least one qualifying day at Niles.

Days at or above 30 C (86 F)

17 years with a qualifying day

Days per year at Niles with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 55 in 2012.

Days at or above 30 C (86 F) per year at Niles
Year	Days	Decade average
2010	40	33.9
2011	34	33.9
2012	55	33.9
2013	26	33.9
2014	11	33.9
2015	24	33.9
2016	50	33.9
2017	26	33.9
2018	42	33.9
2019	31	33.9
2020	46	37.6
2021	45	37.6
2022	33	37.6
2023	27	37.6
2024	37	37.6
2025	48	37.6
2026	27	37.6

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

First to last qualifying date each year at Niles
Year	First date	Last date
2010	2010-05-23	2010-10-09
2011	2011-05-11	2011-09-03
2012	2012-05-03	2012-09-04
2013	2013-05-19	2013-09-11
2014	2014-05-08	2014-09-05
2015	2015-06-10	2015-09-08
2016	2016-05-25	2016-09-08
2017	2017-05-17	2017-09-27
2018	2018-05-26	2018-10-09
2019	2019-06-27	2019-10-02
2020	2020-05-25	2020-08-29
2021	2021-05-23	2021-09-20
2022	2022-05-11	2022-09-02
2023	2023-05-30	2023-10-04
2024	2024-05-22	2024-09-22
2025	2025-05-16	2025-10-05
2026	2026-06-05	2026-08-11

Every Fixed Threshold

Fixed thresholds at Niles
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	17	55	2012	27
35 C (95 F): Days	5	10	2012	2
90 F (32.2 C): Days	17	31	2012	10
100 F (37.8 C): Days	1	3	2012	3
0 C (32 F): Ice days (max	17	74	2014	27
0 C (32 F): Frost days (min	17	142	2013	76
-10 C (14 F): Days with min	17	50	2014	16
-20 C (-4 F): Days with min	11	15	2014	2
20 C (68 F): Tropical nights (min	17	33	2025	25
25 C (77 F): Days with min	5	1	2011	1
10 mm (0.39 in): Days with 10 mm or more rain	83	46	1954	28
25 mm (0.98 in): Days with 25 mm or more rain	83	18	2018	8
50 mm (1.97 in): Days with 50 mm or more rain	59	4	1951	1
100 mm (3.94 in): Days with 100 mm or more rain	9	2	2008	1
10 cm (3.9 in): Days with 10 cm or more snowfall	77	12	2014	7
25 cm (9.8 in): Days with 25 cm or more snowfall	17	2	2000	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2010.

Download the Data

Data for Niles 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Niles Threshold Days by Year (USC00205892)

Key Facts for Niles Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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