East Portal Threshold Days by Year (USC00422319)

10 fixed thresholds counted per year at East Portal (USC00422319): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for East Portal Thresholds

East Portal: days with a maximum temperature at or below 0 C (32 F) in 9 years, most in 1919 with 93.
East Portal: days with 10 mm (0.39 in) or more of precipitation in 9 years, most in 1916 with 21.
East Portal: nights with a minimum temperature at or below 0 C (32 F) in 8 years, most in 1912 with 298.
East Portal: nights with a minimum temperature at or below -10 C (14 F) in 8 years, most in 1912 with 153.
10 fixed thresholds have at least one qualifying day at East Portal.

Nights at or below 0 C (32 F)

8 years with a qualifying day

Days per year at East Portal with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 298 in 1912.

For each year, a bar from the first to the last day at East Portal meeting 0 C (32 F).

First to last qualifying date each year at East Portal
Year	First date	Last date
1912	1912-01-01	1912-12-31
1915	1915-01-01	1915-12-31
1916	1916-01-01	1916-12-31
1917	1917-01-01	1917-12-31
1918	1918-01-01	1918-12-31
1919	1919-01-01	1919-12-31
1920	1920-01-01	1920-12-30
1921	1921-01-01	1921-12-31

Every Fixed Threshold

Fixed thresholds at East Portal
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	1	1	1918	1
0 C (32 F): Ice days (max	9	93	1919	55
0 C (32 F): Frost days (min	8	298	1912	256
-10 C (14 F): Days with min	8	153	1912	95
-20 C (-4 F): Days with min	8	56	1919	24
-30 C (-22 F): Days with min	8	20	1917	6
-40 C (-40 F): Days with min	1	1	1917	1
10 mm (0.39 in): Days with 10 mm or more rain	9	21	1916	17
25 mm (0.98 in): Days with 25 mm or more rain	8	4	1914	2
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1916	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

Download the Data

Data for East Portal 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).

East Portal Threshold Days by Year (USC00422319)

Key Facts for East Portal Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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