Plains Rs Threshold Days by Year (USC00246562)

15 fixed thresholds counted per year at Plains Rs (USC00246562): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Plains Rs Thresholds

Plains Rs: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1919 with 64.
Plains Rs: days with a maximum temperature at or above 90 F (32.2 C) in 27 years, most in 1919 with 45.
Plains Rs: days with a maximum temperature at or below 0 C (32 F) in 27 years, most in 1922 with 56.
Plains Rs: nights with a minimum temperature at or below 0 C (32 F) in 27 years, most in 1922 with 192.
15 fixed thresholds have at least one qualifying day at Plains Rs.

Days at or above 30 C (86 F)

27 years with a qualifying day

Days per year at Plains Rs with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1919.

Days at or above 30 C (86 F) per year at Plains Rs
Year	Days	Decade average
1899	12	12
1900	25	25.6
1901	25	25.6
1902	15	25.6
1903	22	25.6
1904	36	25.6
1905	32	25.6
1906	34	25.6
1907	6	25.6
1908	42	25.6
1909	19	25.6
1910	28	34.2
1911	15	34.2
1912	14	34.2
1913	23	34.2
1914	37	34.2
1915	33	34.2
1916	26	34.2
1917	54	34.2
1918	48	34.2
1919	64	34.2
1920	50	52
1922	62	52
1923	49	52
1924	46	52
1925	52	52
1926	53	52

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

First to last qualifying date each year at Plains Rs
Year	First date	Last date
1899	1899-07-09	1899-08-06
1900	1900-06-20	1900-09-01
1901	1901-07-06	1901-08-30
1902	1902-05-27	1902-08-26
1903	1903-05-31	1903-08-22
1904	1904-06-28	1904-09-07
1905	1905-07-08	1905-09-23
1906	1906-07-03	1906-09-21
1907	1907-07-11	1907-08-23
1908	1908-06-25	1908-09-19
1909	1909-06-30	1909-08-30
1910	1910-04-25	1910-08-20
1911	1911-06-11	1911-09-01
1912	1912-06-09	1912-08-24
1913	1913-04-12	1913-09-17
1914	1914-06-01	1914-09-03
1915	1915-06-23	1915-08-30
1916	1916-06-16	1916-09-02
1917	1917-05-13	1917-09-22
1918	1918-06-07	1918-09-21
1919	1919-05-20	1919-09-16
1920	1920-06-29	1920-09-17
1922	1922-06-01	1922-09-22
1923	1923-06-09	1923-09-14
1924	1924-05-10	1924-09-14
1925	1925-05-18	1925-09-03
1926	1926-04-29	1926-08-26

Every Fixed Threshold

Fixed thresholds at Plains Rs
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	27	64	1919	53
35 C (95 F): Days	20	23	1919	8
40 C (104 F): Days	2	2	1919	1
90 F (32.2 C): Days	27	45	1919	33
100 F (37.8 C): Days	9	9	1919	1
0 C (32 F): Ice days (max	27	56	1922	22
0 C (32 F): Frost days (min	27	192	1922	179
-10 C (14 F): Days with min	27	65	1916	16
-20 C (-4 F): Days with min	21	21	1916	17
-30 C (-22 F): Days with min	5	6	1924	6
20 C (68 F): Tropical nights (min	3	4	1906	1
10 mm (0.39 in): Days with 10 mm or more rain	26	20	1909	3
25 mm (0.98 in): Days with 25 mm or more rain	13	3	1908	1
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1900	1
10 cm (3.9 in): Days with 10 cm or more snowfall	5	4	1914	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Plains Rs 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).

Plains Rs Threshold Days by Year (USC00246562)

Key Facts for Plains Rs Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related