Moira Threshold Days by Year (USC00305429)

14 fixed thresholds counted per year at Moira (USC00305429): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Moira Thresholds

Moira: days with a maximum temperature at or below 0 C (32 F) in 27 years, most in 1904 with 96.
Moira: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 1911 with 27.
Moira: nights with a minimum temperature at or below 0 C (32 F) in 26 years, most in 1926 with 186.
Moira: nights with a minimum temperature at or below -10 C (14 F) in 26 years, most in 1904 with 100.
14 fixed thresholds have at least one qualifying day at Moira.

Days at or above 30 C (86 F)

26 years with a qualifying day

Days per year at Moira with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 1911.

Days at or above 30 C (86 F) per year at Moira
Year	Days	Decade average
1901	16	13.5
1903	8	13.5
1904	8	13.5
1905	8	13.5
1906	18	13.5
1907	14	13.5
1908	24	13.5
1909	12	13.5
1910	9	15.9
1911	27	15.9
1912	11	15.9
1913	23	15.9
1914	13	15.9
1915	9	15.9
1916	26	15.9
1917	10	15.9
1918	12	15.9
1919	19	15.9
1920	7	9.5
1921	24	9.5
1922	11	9.5
1923	10	9.5
1924	4	9.5
1925	6	9.5
1926	4	9.5
1928	10	9.5

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

First to last qualifying date each year at Moira
Year	First date	Last date
1901	1901-06-26	1901-09-06
1903	1903-05-18	1903-09-16
1904	1904-05-08	1904-08-05
1905	1905-06-15	1905-08-12
1906	1906-05-18	1906-09-13
1907	1907-05-15	1907-08-16
1908	1908-05-26	1908-09-26
1909	1909-06-22	1909-09-23
1910	1910-07-06	1910-08-22
1911	1911-05-11	1911-08-27
1912	1912-07-03	1912-07-15
1913	1913-04-25	1913-09-07
1914	1914-05-27	1914-09-22
1915	1915-06-07	1915-09-16
1916	1916-06-02	1916-09-07
1917	1917-07-22	1917-08-12
1918	1918-07-21	1918-08-23
1919	1919-06-02	1919-09-07
1920	1920-06-01	1920-09-27
1921	1921-05-21	1921-09-02
1922	1922-05-24	1922-09-10
1923	1923-06-06	1923-09-02
1924	1924-07-12	1924-08-31
1925	1925-07-06	1925-09-11
1926	1926-07-10	1926-08-06
1928	1928-06-13	1928-08-28

Every Fixed Threshold

Fixed thresholds at Moira
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	26	27	1911	10
35 C (95 F): Days	6	5	1911	1
90 F (32.2 C): Days	21	20	1911	1
0 C (32 F): Ice days (max	27	96	1904	64
0 C (32 F): Frost days (min	26	186	1926	173
-10 C (14 F): Days with min	26	100	1904	68
-20 C (-4 F): Days with min	26	35	1904	16
-30 C (-22 F): Days with min	18	8	1917	1
20 C (68 F): Tropical nights (min	26	18	1921	3
25 C (77 F): Days with min	2	1	1901	1
10 mm (0.39 in): Days with 10 mm or more rain	26	50	1901	32
25 mm (0.98 in): Days with 25 mm or more rain	26	11	1926	5
50 mm (1.97 in): Days with 50 mm or more rain	18	4	1926	1
10 cm (3.9 in): Days with 10 cm or more snowfall	1	11	1926	11

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1901.

Download the Data

Data for Moira 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).

Moira Threshold Days by Year (USC00305429)

Key Facts for Moira Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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