Cottam Threshold Days by Year (CA006131910)

16 fixed thresholds counted per year at Cottam (CA006131910): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cottam Thresholds

Cottam: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1897 with 41.
Cottam: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 1907 with 12.
Cottam: days with 10 cm (3.9 in) or more of snowfall in 34 years, most in 1893 with 8.
Cottam: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1909 with 5.
16 fixed thresholds have at least one qualifying day at Cottam.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Cottam with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 68 in 1921.

Days at or above 30 C (86 F) per year at Cottam
Year	Days	Decade average
1907	12	26.3
1908	38	26.3
1909	29	26.3
1910	34	35.2
1911	40	35.2
1912	31	35.2
1913	47	35.2
1914	34	35.2
1916	42	35.2
1917	21	35.2
1918	31	35.2
1919	37	35.2
1920	16	42
1921	68	42

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

First to last qualifying date each year at Cottam
Year	First date	Last date
1907	1907-06-22	1907-09-15
1908	1908-05-28	1908-09-27
1909	1909-06-21	1909-09-14
1910	1910-06-16	1910-09-05
1911	1911-05-18	1911-09-02
1912	1912-06-01	1912-09-18
1913	1913-06-06	1913-09-07
1914	1914-05-25	1914-09-22
1916	1916-07-02	1916-09-07
1917	1917-06-14	1917-08-20
1918	1918-05-07	1918-08-28
1919	1919-05-30	1919-10-05
1920	1920-06-09	1920-09-27
1921	1921-05-21	1921-09-14

Every Fixed Threshold

Fixed thresholds at Cottam
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	68	1921	68
35 C (95 F): Days	12	16	1921	16
90 F (32.2 C): Days	13	34	1921	34
100 F (37.8 C): Days	2	2	1918	2
0 C (32 F): Ice days (max	14	69	1916	50
0 C (32 F): Frost days (min	14	177	1907	132
-10 C (14 F): Days with min	14	73	1912	24
-20 C (-4 F): Days with min	11	25	1917	11
-30 C (-22 F): Days with min	2	1	1912	1
20 C (68 F): Tropical nights (min	14	23	1921	23
25 C (77 F): Days with min	2	1	1909	1
10 mm (0.39 in): Days with 10 mm or more rain	35	41	1897	31
25 mm (0.98 in): Days with 25 mm or more rain	35	12	1907	12
50 mm (1.97 in): Days with 50 mm or more rain	18	5	1909	2
10 cm (3.9 in): Days with 10 cm or more snowfall	34	8	1893	4
25 cm (9.8 in): Days with 25 cm or more snowfall	8	2	1910	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 Cottam 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).

Cottam Threshold Days by Year (CA006131910)

Key Facts for Cottam Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related