Philo Threshold Days by Year (USC00116769)

18 fixed thresholds counted per year at Philo (USC00116769): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Philo Thresholds

Philo: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1909 with 43.
Philo: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 2003 with 14.
Philo: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1909 with 4.
Philo: days with a maximum temperature at or above 30 C (86 F) in 22 years, most in 1913 with 88.
18 fixed thresholds have at least one qualifying day at Philo.

Days at or above 30 C (86 F)

22 years with a qualifying day

Days per year at Philo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 88 in 1913.

Days at or above 30 C (86 F) per year at Philo
Year	Days	Decade average
1893	75	73.1
1894	77	73.1
1895	86	73.1
1896	67	73.1
1897	71	73.1
1898	59	73.1
1899	77	73.1
1900	70	56.1
1901	82	56.1
1902	48	56.1
1903	49	56.1
1904	31	56.1
1905	50	56.1
1906	67	56.1
1907	43	56.1
1908	71	56.1
1909	50	56.1
1910	41	64
1911	74	64
1912	46	64
1913	88	64
1914	71	64

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

First to last qualifying date each year at Philo
Year	First date	Last date
1893	1893-05-20	1893-09-21
1894	1894-04-30	1894-09-29
1895	1895-04-29	1895-09-22
1896	1896-04-16	1896-09-14
1897	1897-06-11	1897-10-15
1898	1898-06-02	1898-10-03
1899	1899-04-28	1899-10-15
1900	1900-05-13	1900-10-05
1901	1901-04-28	1901-10-01
1902	1902-04-21	1902-08-30
1903	1903-05-17	1903-10-03
1904	1904-06-03	1904-09-28
1905	1905-04-09	1905-09-29
1906	1906-04-28	1906-09-21
1907	1907-03-21	1907-09-19
1908	1908-05-17	1908-10-18
1909	1909-05-05	1909-09-14
1910	1910-03-24	1910-09-08
1911	1911-05-09	1911-09-27
1912	1912-05-21	1912-10-06
1913	1913-05-14	1913-09-11
1914	1914-04-26	1914-09-21

Every Fixed Threshold

Fixed thresholds at Philo
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	22	88	1913	71
35 C (95 F): Days	20	36	1913	20
40 C (104 F): Days	2	2	1901	1
90 F (32.2 C): Days	22	68	1913	48
100 F (37.8 C): Days	7	10	1913	10
0 C (32 F): Ice days (max	22	58	1912	50
0 C (32 F): Frost days (min	22	151	1895	128
-10 C (14 F): Days with min	22	52	1904	46
-20 C (-4 F): Days with min	20	15	1895	7
-30 C (-22 F): Days with min	5	1	1894	1
20 C (68 F): Tropical nights (min	22	42	1913	28
25 C (77 F): Days with min	2	1	1913	1
10 mm (0.39 in): Days with 10 mm or more rain	44	43	1909	31
25 mm (0.98 in): Days with 25 mm or more rain	44	14	2003	13
50 mm (1.97 in): Days with 50 mm or more rain	34	4	1909	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	15	4	1909	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	2013	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

Data for Philo 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).

Philo Threshold Days by Year (USC00116769)

Key Facts for Philo Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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