Blalock Weather Records (USC00350788)

Record envelope, standing records and threshold days for Blalock (USC00350788), Oregon, United States, with 40 years of record.

Key Facts for Blalock

Blalock (USC00350788) is a weather station in Oregon, United States at 45.63 latitude and -120.40 longitude, 290 m (950 ft) above sea level.
The station reports from 1899 to 1938, 40 years of record.
1,464 records set at Blalock still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Oregon, United States, 45.63 latitude, -120.40 longitude.
Elevation: 290 m (950 ft).
Period of record: 1899 to 1938, 40 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 Blalock. 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 Blalock, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	23.9 C (75.0 F)	-27.8 C (-18.0 F)	n/a	n/a
Feb	20.6 C (69.1 F)	-16.1 C (3.0 F)	n/a	n/a
Mar	29.4 C (84.9 F)	-10.0 C (14.0 F)	n/a	n/a
Apr	35.0 C (95.0 F)	-3.3 C (26.1 F)	n/a	n/a
May	38.3 C (100.9 F)	0.6 C (33.1 F)	n/a	n/a
Jun	41.7 C (107.1 F)	5.0 C (41.0 F)	n/a	n/a
Jul	46.1 C (115.0 F)	5.6 C (42.1 F)	n/a	n/a
Aug	43.3 C (109.9 F)	6.7 C (44.1 F)	n/a	n/a
Sep	37.8 C (100.0 F)	3.3 C (37.9 F)	n/a	n/a
Oct	32.8 C (91.0 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	22.8 C (73.0 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	17.8 C (64.0 F)	-11.7 C (10.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Blalock still stand. 1899 holds the most, with 132.

Wettest Day of Each Month

Nov: 37.6 mm (1.5 in)

The wettest day on record for each calendar month at Blalock. The most was 37.6 mm (1.5 in) on 22 November 1909.

Record daily precipitation for each month at Blalock
Month	Record daily precipitation (mm)	Date
Jan	29.2 mm (1.1 in)	31 January 1907
Feb	22.1 mm (0.9 in)	28 February 1899
Mar	15.5 mm (0.6 in)	4 March 1916
Apr	14.0 mm (0.6 in)	15 April 1914
May	20.3 mm (0.8 in)	15 May 1908
Jun	15.7 mm (0.6 in)	3 June 1906
Jul	7.6 mm (0.30 in)	27 July 1905
Aug	7.6 mm (0.30 in)	20 August 1900
Sep	14.0 mm (0.6 in)	12 September 1905
Oct	23.6 mm (0.9 in)	7 October 1905
Nov	37.6 mm (1.5 in)	22 November 1909
Dec	32.8 mm (1.3 in)	30 December 1913

Period of Record Coverage

1899 to 1916

18 years of record at Blalock, 1899 to 1916. 6 years have data for under 90 percent of days and are left out of rankings: 1900, 1909, 1911, 1912, 1913, 1916.

Days with data per year at Blalock
Year	Days with data	Share of year	Complete
1899	335	92%	Yes
1900	241	66%	No
1901	348	95%	Yes
1902	354	97%	Yes
1903	350	96%	Yes
1904	356	97%	Yes
1905	360	99%	Yes
1906	358	98%	Yes
1907	357	98%	Yes
1908	360	98%	Yes
1909	319	87%	No
1910	352	96%	Yes
1911	263	72%	No
1912	257	70%	No
1913	325	89%	No
1914	330	90%	Yes
1915	361	99%	Yes
1916	62	17%	No

Latest Records

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

Extremes by Year

1899 to 1938

Yearly extremes at Blalock: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.1 C (115.0 F)	1911	41.7 C (107.1 F)	18
Coldest night (TNn)	-27.8 C (-18.0 F)	1909	-11.7 C (10.9 F)	18
Wettest day (Rx1day)	37.6 mm (1.5 in)	1909	19.0 mm (0.7 in)	20
Wettest five days (Rx5day)	57.1 mm (2.2 in)	1907	35.4 mm (1.4 in)	20
Longest dry spell (CDD)	117 days	1910	62 days	20

Hottest day (TXx)

The hottest day of the year at Blalock, 1899 to 1938. The record is 46.1 C (115.0 F) in 1911, marked on the chart; the median year is 41.7 C (107.1 F).

Hottest day (TXx) at Blalock by year
Year	Hottest day (TXx)
1899	40.0 C (104.0 F)
1900	40.6 C (105.1 F)
1901	41.7 C (107.1 F)
1902	41.7 C (107.1 F)
1903	40.6 C (105.1 F)
1904	43.3 C (109.9 F)
1905	45.6 C (114.1 F)
1906	43.3 C (109.9 F)
1907	41.7 C (107.1 F)
1908	43.3 C (109.9 F)
1909	39.4 C (102.9 F)
1910	41.1 C (106.0 F)
1911	46.1 C (115.0 F)
1912	41.7 C (107.1 F)
1913	42.8 C (109.0 F)
1914	42.8 C (109.0 F)
1915	41.7 C (107.1 F)
1916	15.6 C (60.1 F)
1937	n/a
1938	n/a

Coldest night (TNn)

The coldest night of the year at Blalock, 1899 to 1938. The record is -27.8 C (-18.0 F) in 1909, marked on the chart; the median year is -11.7 C (10.9 F).

Coldest night (TNn) at Blalock by year
Year	Coldest night (TNn)
1899	-16.1 C (3.0 F)
1900	-10.0 C (14.0 F)
1901	-6.1 C (21.0 F)
1902	-16.7 C (1.9 F)
1903	-6.7 C (19.9 F)
1904	-6.1 C (21.0 F)
1905	-15.6 C (3.9 F)
1906	-10.0 C (14.0 F)
1907	-17.8 C (0.0 F)
1908	-8.3 C (17.1 F)
1909	-27.8 C (-18.0 F)
1910	-12.8 C (9.0 F)
1911	-9.4 C (15.1 F)
1912	-18.9 C (-2.0 F)
1913	-11.7 C (10.9 F)
1914	-9.4 C (15.1 F)
1915	-11.7 C (10.9 F)
1916	-21.7 C (-7.1 F)
1937	n/a
1938	n/a

Wettest day (Rx1day)

The wettest day of the year at Blalock, 1899 to 1938. The record is 37.6 mm (1.5 in) in 1909, marked on the chart; the median year is 19.0 mm (0.7 in).

Wettest day (Rx1day) at Blalock by year
Year	Wettest day (Rx1day)
1899	22.1 mm (0.9 in)
1900	17.8 mm (0.7 in)
1901	15.2 mm (0.6 in)
1902	18.3 mm (0.7 in)
1903	31.2 mm (1.2 in)
1904	19.1 mm (0.8 in)
1905	23.6 mm (0.9 in)
1906	20.8 mm (0.8 in)
1907	29.2 mm (1.1 in)
1908	20.3 mm (0.8 in)
1909	37.6 mm (1.5 in)
1910	10.2 mm (0.4 in)
1911	18.8 mm (0.7 in)
1912	20.3 mm (0.8 in)
1913	32.8 mm (1.3 in)
1914	16.3 mm (0.6 in)
1915	18.8 mm (0.7 in)
1916	15.5 mm (0.6 in)
1937	12.4 mm (0.5 in)
1938	14.7 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Blalock, 1899 to 1938. The record is 57.1 mm (2.2 in) in 1907, marked on the chart; the median year is 35.4 mm (1.4 in).

Wettest five days (Rx5day) at Blalock by year
Year	Wettest five days (Rx5day)
1899	40.5 mm (1.6 in)
1900	21.6 mm (0.9 in)
1901	34.0 mm (1.3 in)
1902	51.8 mm (2.0 in)
1903	47.4 mm (1.9 in)
1904	32.3 mm (1.3 in)
1905	28.4 mm (1.1 in)
1906	35.1 mm (1.4 in)
1907	57.1 mm (2.2 in)
1908	23.4 mm (0.9 in)
1909	48.3 mm (1.9 in)
1910	27.8 mm (1.1 in)
1911	25.9 mm (1.0 in)
1912	41.7 mm (1.6 in)
1913	35.6 mm (1.4 in)
1914	37.4 mm (1.5 in)
1915	39.6 mm (1.6 in)
1916	42.5 mm (1.7 in)
1937	33.6 mm (1.3 in)
1938	24.9 mm (1.0 in)

Longest dry spell (CDD)

The longest dry spell of the year at Blalock, 1899 to 1938. The record is 117 days in 1910, marked on the chart; the median year is 62 days.

Longest dry spell (CDD) at Blalock by year
Year	Longest dry spell (CDD)
1899	80 days
1900	38 days
1901	55 days
1902	77 days
1903	69 days
1904	85 days
1905	30 days
1906	88 days
1907	51 days
1908	61 days
1909	60 days
1910	117 days
1911	62 days
1912	47 days
1913	64 days
1914	72 days
1915	65 days
1916	16 days
1937	34 days
1938	6 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 Blalock standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Blalock 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).