Ironside 2 W Threshold Days by Year (USC00354175)

15 fixed thresholds counted per year at Ironside 2 W (USC00354175): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ironside 2 W Thresholds

Ironside 2 W: days with 10 mm (0.39 in) or more of precipitation in 31 years, most in 1983 with 10.
Ironside 2 W: days with 10 cm (3.9 in) or more of snowfall in 30 years, most in 1988 with 5.
Ironside 2 W: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 2003 with 69.
Ironside 2 W: days with a maximum temperature at or above 90 F (32.2 C) in 14 years, most in 1990 with 43.
15 fixed thresholds have at least one qualifying day at Ironside 2 W.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Ironside 2 W with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 69 in 2003.

Days at or above 30 C (86 F) per year at Ironside 2 W
Year	Days	Decade average
1978	30	30
1980	27	43.1
1981	53	43.1
1983	30	43.1
1984	47	43.1
1985	40	43.1
1987	51	43.1
1988	62	43.1
1989	35	43.1
1990	60	48.3
1991	53	48.3
1992	51	48.3
1997	29	48.3
2003	69	69

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

First to last qualifying date each year at Ironside 2 W
Year	First date	Last date
1978	1978-07-09	1978-09-27
1980	1980-06-21	1980-09-18
1981	1981-06-26	1981-09-19
1983	1983-05-26	1983-08-29
1984	1984-06-25	1984-09-20
1985	1985-06-13	1985-08-28
1987	1987-06-06	1987-09-25
1988	1988-05-23	1988-10-09
1989	1989-06-09	1989-09-16
1990	1990-06-23	1990-09-24
1991	1991-06-11	1991-09-28
1992	1992-05-06	1992-10-02
1997	1997-07-06	1997-09-11
2003	2003-05-24	2003-09-29

Every Fixed Threshold

Fixed thresholds at Ironside 2 W
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	69	2003	69
35 C (95 F): Days	13	18	1988	18
40 C (104 F): Days	1	4	2003	4
90 F (32.2 C): Days	14	43	1990	42
100 F (37.8 C): Days	7	8	2003	8
0 C (32 F): Ice days (max	14	75	1985	8
0 C (32 F): Frost days (min	10	174	1991	165
-10 C (14 F): Days with min	10	55	1989	28
-20 C (-4 F): Days with min	8	9	1989	1
-30 C (-22 F): Days with min	1	1	1983	1
20 C (68 F): Tropical nights (min	4	4	1990	4
10 mm (0.39 in): Days with 10 mm or more rain	31	10	1983	3
25 mm (0.98 in): Days with 25 mm or more rain	5	1	1980	1
10 cm (3.9 in): Days with 10 cm or more snowfall	30	5	1988	1
25 cm (9.8 in): Days with 25 cm or more snowfall	5	1	1984	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1978.

Download the Data

Data for Ironside 2 W 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).

Ironside 2 W Threshold Days by Year (USC00354175)

Key Facts for Ironside 2 W Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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