Lisbon Threshold Days by Year (USC00095231)

15 fixed thresholds counted per year at Lisbon (USC00095231): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lisbon Thresholds

Lisbon: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1926 with 148.
Lisbon: days with a maximum temperature at or above 35 C (95 F) in 20 years, most in 1925 with 82.
Lisbon: days with a maximum temperature at or above 90 F (32.2 C) in 20 years, most in 1926 with 122.
Lisbon: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 1914 with 78.
15 fixed thresholds have at least one qualifying day at Lisbon.

Days at or above 30 C (86 F)

20 years with a qualifying day

Days per year at Lisbon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 148 in 1926.

Days at or above 30 C (86 F) per year at Lisbon
Year	Days	Decade average
1907	121	112
1908	108	112
1909	107	112
1910	113	117.9
1911	140	117.9
1912	109	117.9
1913	111	117.9
1914	117	117.9
1915	104	117.9
1916	122	117.9
1917	113	117.9
1918	115	117.9
1919	135	117.9
1920	127	126.1
1921	131	126.1
1922	118	126.1
1923	115	126.1
1924	98	126.1
1925	146	126.1
1926	148	126.1

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

First to last qualifying date each year at Lisbon
Year	First date	Last date
1907	1907-03-19	1907-10-07
1908	1908-03-16	1908-10-19
1909	1909-04-06	1909-10-04
1910	1910-03-29	1910-10-21
1911	1911-04-07	1911-10-16
1912	1912-05-09	1912-10-13
1913	1913-04-03	1913-10-11
1914	1914-04-23	1914-10-11
1915	1915-04-20	1915-10-16
1916	1916-04-13	1916-10-16
1917	1917-03-14	1917-10-05
1918	1918-05-04	1918-10-07
1919	1919-04-08	1919-11-01
1920	1920-04-17	1920-10-23
1921	1921-03-15	1921-10-03
1922	1922-04-10	1922-10-05
1923	1923-04-22	1923-10-15
1924	1924-04-25	1924-09-22
1925	1925-04-13	1925-10-17
1926	1926-04-22	1926-10-20

Every Fixed Threshold

Fixed thresholds at Lisbon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	20	148	1926	148
35 C (95 F): Days	20	82	1925	64
40 C (104 F): Days	10	17	1925	4
90 F (32.2 C): Days	20	122	1926	122
100 F (37.8 C): Days	18	41	1925	14
110 F (43.3 C): Days	1	1	1926	1
0 C (32 F): Ice days (max	6	3	1917	1
0 C (32 F): Frost days (min	20	78	1914	67
-10 C (14 F): Days with min	12	7	1917	2
20 C (68 F): Tropical nights (min	20	93	1911	75
25 C (77 F): Days with min	12	5	1925	1
10 mm (0.39 in): Days with 10 mm or more rain	18	49	1923	37
25 mm (0.98 in): Days with 25 mm or more rain	18	18	1908	10
50 mm (1.97 in): Days with 50 mm or more rain	16	4	1913	2
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1908	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1907.

Download the Data

Data for Lisbon 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).

Lisbon Threshold Days by Year (USC00095231)

Key Facts for Lisbon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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