Empress Threshold Days by Year (CA003022400)

15 fixed thresholds counted per year at Empress (CA003022400): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Empress Thresholds

Empress: days with a maximum temperature at or above 30 C (86 F) in 22 years, most in 1960 with 40.
Empress: days with a maximum temperature at or above 90 F (32.2 C) in 22 years, most in 1958 with 25.
Empress: days with a maximum temperature at or below 0 C (32 F) in 22 years, most in 1951 with 133.
Empress: nights with a minimum temperature at or below 0 C (32 F) in 21 years, most in 1959 with 212.
15 fixed thresholds have at least one qualifying day at Empress.

Days at or above 30 C (86 F)

22 years with a qualifying day

Days per year at Empress with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 40 in 1960.

Days at or above 30 C (86 F) per year at Empress
Year	Days	Decade average
1943	26	21
1948	16	21
1950	25	21
1951	16	21
1952	11	21
1954	14	21
1957	27	21
1958	32	21
1959	22	21
1960	40	40
1972	25	21.1
1973	24	21.1
1974	17	21.1
1975	16	21.1
1976	22	21.1
1977	14	21.1
1978	22	21.1
1979	29	21.1
1980	22	29.5
1981	40	29.5
1982	29	29.5
1983	27	29.5

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

First to last qualifying date each year at Empress
Year	First date	Last date
1943	1943-04-19	1943-10-03
1948	1948-06-06	1948-09-14
1950	1950-06-11	1950-09-24
1951	1951-05-23	1951-08-05
1952	1952-06-06	1952-08-23
1954	1954-05-19	1954-08-30
1957	1957-04-28	1957-10-01
1958	1958-05-11	1958-09-12
1959	1959-05-16	1959-09-13
1960	1960-05-11	1960-09-04
1972	1972-05-30	1972-08-29
1973	1973-06-13	1973-09-06
1974	1974-06-19	1974-08-05
1975	1975-07-02	1975-09-15
1976	1976-06-18	1976-09-16
1977	1977-04-25	1977-07-28
1978	1978-06-05	1978-09-04
1979	1979-06-12	1979-09-18
1980	1980-04-20	1980-10-06
1981	1981-06-26	1981-09-19
1982	1982-05-25	1982-09-09
1983	1983-05-25	1983-09-01

Every Fixed Threshold

Fixed thresholds at Empress
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	22	40	1960	27
35 C (95 F): Days	17	8	1960	7
90 F (32.2 C): Days	22	25	1958	10
100 F (37.8 C): Days	3	4	1960	1
0 C (32 F): Ice days (max	22	133	1951	98
0 C (32 F): Frost days (min	21	212	1959	183
-10 C (14 F): Days with min	21	122	1975	84
-20 C (-4 F): Days with min	21	68	1951	37
-30 C (-22 F): Days with min	21	26	1979	13
-40 C (-40 F): Days with min	12	9	1950	4
20 C (68 F): Tropical nights (min	4	2	1952	1
10 mm (0.39 in): Days with 10 mm or more rain	16	14	1974	9
25 mm (0.98 in): Days with 25 mm or more rain	6	3	1978	3
50 mm (1.97 in): Days with 50 mm or more rain	2	1	1978	1
10 cm (3.9 in): Days with 10 cm or more snowfall	7	5	1974	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

Data for Empress 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Empress Threshold Days by Year (CA003022400)

Key Facts for Empress Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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