East Portal Weather Records (USC00422319)

Record envelope, standing records and threshold days for East Portal (USC00422319), Utah, United States, with 51 years of record.

Key Facts for East Portal

East Portal (USC00422319) is a weather station in Utah, United States at 40.17 latitude and -111.18 longitude, 2,321 m (7,615 ft) above sea level.
The station reports from 1905 to 1955, 51 years of record.
1,464 records set at East Portal still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Utah, United States, 40.17 latitude, -111.18 longitude.
Elevation: 2,321 m (7,615 ft).
Period of record: 1905 to 1955, 51 years.
Eligible elements: none yet.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at East Portal. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at East Portal, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	12.8 C (55.0 F)	-45.6 C (-50.1 F)	n/a	n/a
Feb	16.7 C (62.1 F)	-41.7 C (-43.1 F)	n/a	n/a
Mar	12.8 C (55.0 F)	-38.3 C (-36.9 F)	n/a	n/a
Apr	18.9 C (66.0 F)	-28.3 C (-18.9 F)	n/a	n/a
May	25.0 C (77.0 F)	-14.4 C (6.1 F)	n/a	n/a
Jun	30.6 C (87.1 F)	-11.7 C (10.9 F)	n/a	n/a
Jul	30.6 C (87.1 F)	-4.4 C (24.1 F)	n/a	n/a
Aug	29.4 C (84.9 F)	-4.4 C (24.1 F)	n/a	n/a
Sep	28.3 C (82.9 F)	-12.2 C (10.0 F)	n/a	n/a
Oct	25.6 C (78.1 F)	-19.4 C (-2.9 F)	n/a	n/a
Nov	22.2 C (72.0 F)	-25.6 C (-14.1 F)	n/a	n/a
Dec	10.6 C (51.1 F)	-37.8 C (-36.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at East Portal still stand. 1912 holds the most, with 138.

Standing records at East Portal by the year they were set
Year set	Standing records
1905	5
1906	78
1907	12
1908	6
1909	6
1912	138
1913	87
1914	63
1915	75
1916	72
1917	100
1918	104
1919	86
1920	75
1921	85
1922	57
1923	12
1924	47
1925	35
1926	50
1927	55
1948	20
1949	30
1950	28
1951	28
1952	24
1953	17
1954	36
1955	33

Wettest Day of Each Month

Oct: 51.6 mm (2.0 in)

The wettest day on record for each calendar month at East Portal. The most was 51.6 mm (2.0 in) on 1 October 1916.

Record daily precipitation for each month at East Portal
Month	Record daily precipitation (mm)	Date
Jan	33.0 mm (1.3 in)	3 January 1906
Feb	40.6 mm (1.6 in)	24 February 1906
Mar	40.9 mm (1.6 in)	5 March 1916
Apr	21.6 mm (0.9 in)	16 April 1920
May	25.4 mm (1.0 in)	1 May 1917
Jun	25.7 mm (1.0 in)	27 June 1913
Jul	35.6 mm (1.4 in)	31 July 1919
Aug	28.2 mm (1.1 in)	25 August 1955
Sep	30.0 mm (1.2 in)	29 September 1905
Oct	51.6 mm (2.0 in)	1 October 1916
Nov	28.7 mm (1.1 in)	7 November 1915
Dec	29.2 mm (1.1 in)	19 December 1921

Period of Record Coverage

1905 to 1955

30 years of record at East Portal, 1905 to 1955. 21 years have data for under 90 percent of days and are left out of rankings: 1905, 1906, 1907, 1908, 1909, 1911, 1913, 1922 and others.

Days with data per year at East Portal
Year	Days with data	Share of year	Complete
1905	21	6%	No
1906	168	46%	No
1907	23	6%	No
1908	58	16%	No
1909	31	8%	No
1911	1	0%	No
1912	339	93%	Yes
1913	276	76%	No
1914	365	100%	Yes
1915	363	99%	Yes
1916	366	100%	Yes
1917	362	99%	Yes
1918	365	100%	Yes
1919	364	100%	Yes
1920	363	99%	Yes
1921	363	99%	Yes
1922	179	49%	No
1923	199	55%	No
1924	185	51%	No
1925	247	68%	No
1926	304	83%	No
1927	203	56%	No
1948	122	33%	No
1949	183	50%	No
1950	169	46%	No
1951	176	48%	No
1952	158	43%	No
1953	173	47%	No
1954	186	51%	No
1955	179	49%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1905 to 1955

Yearly extremes at East Portal: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	30.6 C (87.1 F)	1925	28.9 C (84.0 F)	30
Coldest night (TNn)	-45.6 C (-50.1 F)	1913	-31.1 C (-24.1 F)	30
Wettest day (Rx1day)	51.6 mm (2.0 in)	1916	26.7 mm (1.0 in)	28
Wettest five days (Rx5day)	70.2 mm (2.8 in)	1916	44.6 mm (1.8 in)	27
Longest dry spell (CDD)	60 days	1916	26 days	28

Hottest day (TXx)

The hottest day of the year at East Portal, 1905 to 1955. The record is 30.6 C (87.1 F) in 1925, marked on the chart; the median year is 28.9 C (84.0 F).

Hottest day (TXx) at East Portal by year
Year	Hottest day (TXx)
1905	14.4 C (57.9 F)
1906	28.9 C (84.0 F)
1907	12.2 C (54.0 F)
1908	15.0 C (59.0 F)
1909	7.2 C (45.0 F)
1911	5.0 C (41.0 F)
1912	26.7 C (80.1 F)
1913	27.8 C (82.0 F)
1914	28.3 C (82.9 F)
1915	28.3 C (82.9 F)
1916	27.2 C (81.0 F)
1917	28.3 C (82.9 F)
1918	30.0 C (86.0 F)
1919	29.4 C (84.9 F)
1920	29.4 C (84.9 F)
1921	28.9 C (84.0 F)
1922	30.0 C (86.0 F)
1923	28.3 C (82.9 F)
1924	29.4 C (84.9 F)
1925	30.6 C (87.1 F)
1926	29.4 C (84.9 F)
1927	27.2 C (81.0 F)
1948	28.9 C (84.0 F)
1949	29.4 C (84.9 F)
1950	28.3 C (82.9 F)
1951	28.9 C (84.0 F)
1952	28.9 C (84.0 F)
1953	30.6 C (87.1 F)
1954	30.6 C (87.1 F)
1955	30.0 C (86.0 F)

Coldest night (TNn)

The coldest night of the year at East Portal, 1905 to 1955. The record is -45.6 C (-50.1 F) in 1913, marked on the chart; the median year is -31.1 C (-24.1 F).

Coldest night (TNn) at East Portal by year
Year	Coldest night (TNn)
1905	-30.6 C (-23.1 F)
1906	-39.4 C (-38.9 F)
1907	-16.7 C (1.9 F)
1908	-20.0 C (-4.0 F)
1909	-18.9 C (-2.0 F)
1911	-31.7 C (-25.1 F)
1912	-35.6 C (-32.1 F)
1913	-45.6 C (-50.1 F)
1914	-36.7 C (-34.1 F)
1915	-33.9 C (-29.0 F)
1916	-37.8 C (-36.0 F)
1917	-41.7 C (-43.1 F)
1918	-35.6 C (-32.1 F)
1919	-36.7 C (-34.1 F)
1920	-36.7 C (-34.1 F)
1921	-36.7 C (-34.1 F)
1922	-41.1 C (-42.0 F)
1923	-12.2 C (10.0 F)
1924	-12.2 C (10.0 F)
1925	-22.2 C (-8.0 F)
1926	-37.2 C (-35.0 F)
1927	-38.9 C (-38.0 F)
1948	-10.6 C (12.9 F)
1949	-13.3 C (8.1 F)
1950	-21.1 C (-6.0 F)
1951	-16.7 C (1.9 F)
1952	-10.6 C (12.9 F)
1953	-10.6 C (12.9 F)
1954	-18.9 C (-2.0 F)
1955	-12.2 C (10.0 F)

Wettest day (Rx1day)

The wettest day of the year at East Portal, 1905 to 1955. The record is 51.6 mm (2.0 in) in 1916, marked on the chart; the median year is 26.7 mm (1.0 in).

Wettest day (Rx1day) at East Portal by year
Year	Wettest day (Rx1day)
1905	30.0 mm (1.2 in)
1906	40.6 mm (1.6 in)
1907	n/a
1908	n/a
1909	10.2 mm (0.4 in)
1911	10.2 mm (0.4 in)
1912	25.4 mm (1.0 in)
1913	29.2 mm (1.1 in)
1914	48.8 mm (1.9 in)
1915	28.7 mm (1.1 in)
1916	51.6 mm (2.0 in)
1917	25.4 mm (1.0 in)
1918	17.8 mm (0.7 in)
1919	35.6 mm (1.4 in)
1920	28.4 mm (1.1 in)
1921	29.2 mm (1.1 in)
1922	28.4 mm (1.1 in)
1923	17.8 mm (0.7 in)
1924	27.9 mm (1.1 in)
1925	31.8 mm (1.3 in)
1926	24.9 mm (1.0 in)
1927	20.3 mm (0.8 in)
1948	24.4 mm (1.0 in)
1949	23.4 mm (0.9 in)
1950	21.1 mm (0.8 in)
1951	19.1 mm (0.8 in)
1952	27.9 mm (1.1 in)
1953	20.3 mm (0.8 in)
1954	21.1 mm (0.8 in)
1955	28.2 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at East Portal, 1905 to 1955. The record is 70.2 mm (2.8 in) in 1916, marked on the chart; the median year is 44.6 mm (1.8 in).

Wettest five days (Rx5day) at East Portal by year
Year	Wettest five days (Rx5day)
1905	40.9 mm (1.6 in)
1906	40.6 mm (1.6 in)
1907	n/a
1908	n/a
1909	19.0 mm (0.7 in)
1911	n/a
1912	51.6 mm (2.0 in)
1913	56.0 mm (2.2 in)
1914	62.2 mm (2.4 in)
1915	44.2 mm (1.7 in)
1916	70.2 mm (2.8 in)
1917	36.9 mm (1.5 in)
1918	47.4 mm (1.9 in)
1919	54.4 mm (2.1 in)
1920	44.6 mm (1.8 in)
1921	55.6 mm (2.2 in)
1922	37.3 mm (1.5 in)
1923	29.6 mm (1.2 in)
1924	38.1 mm (1.5 in)
1925	48.4 mm (1.9 in)
1926	43.0 mm (1.7 in)
1927	57.3 mm (2.3 in)
1948	24.4 mm (1.0 in)
1949	46.8 mm (1.8 in)
1950	32.3 mm (1.3 in)
1951	40.7 mm (1.6 in)
1952	46.5 mm (1.8 in)
1953	48.3 mm (1.9 in)
1954	47.0 mm (1.9 in)
1955	29.2 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at East Portal, 1905 to 1955. The record is 60 days in 1916, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at East Portal by year
Year	Longest dry spell (CDD)
1905	17 days
1906	15 days
1907	n/a
1908	n/a
1909	10 days
1911	2 days
1912	24 days
1913	21 days
1914	30 days
1915	30 days
1916	60 days
1917	47 days
1918	21 days
1919	28 days
1920	16 days
1921	26 days
1922	29 days
1923	14 days
1924	55 days
1925	19 days
1926	29 days
1927	11 days
1948	26 days
1949	19 days
1950	28 days
1951	29 days
1952	54 days
1953	26 days
1954	19 days
1955	34 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Download the Data

Data for East Portal standing records by year: CSV or JSON. Field meanings are on the data page.
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).