Santiam Pass Weather Records (USC00357559)

Record envelope, standing records and threshold days for Santiam Pass (USC00357559), Oregon, United States, with 40 years of record.

Key Facts for Santiam Pass

Santiam Pass (USC00357559) is a weather station in Oregon, United States at 44.42 latitude and -121.87 longitude, 1,447 m (4,748 ft) above sea level.
The station reports from 1946 to 1985, 40 years of record.
1,464 records set at Santiam Pass 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, 44.42 latitude, -121.87 longitude.
Elevation: 1,447 m (4,748 ft).
Period of record: 1946 to 1985, 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 Santiam Pass. 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 Santiam Pass, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	15.6 C (60.1 F)	-30.0 C (-22.0 F)	n/a	n/a
Feb	15.0 C (59.0 F)	-25.0 C (-13.0 F)	n/a	n/a
Mar	19.4 C (66.9 F)	-22.2 C (-8.0 F)	n/a	n/a
Apr	23.9 C (75.0 F)	-15.6 C (3.9 F)	n/a	n/a
May	27.8 C (82.0 F)	-11.1 C (12.0 F)	n/a	n/a
Jun	32.2 C (90.0 F)	-5.0 C (23.0 F)	n/a	n/a
Jul	33.3 C (91.9 F)	-2.2 C (28.0 F)	n/a	n/a
Aug	35.6 C (96.1 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	33.3 C (91.9 F)	-5.6 C (21.9 F)	n/a	n/a
Oct	27.8 C (82.0 F)	-13.3 C (8.1 F)	n/a	n/a
Nov	21.1 C (70.0 F)	-16.1 C (3.0 F)	n/a	n/a
Dec	15.0 C (59.0 F)	-26.7 C (-16.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Santiam Pass still stand. 1971 holds the most, with 70.

Standing records at Santiam Pass by the year they were set
Year set	Standing records
1946	3
1947	65
1948	47
1949	68
1950	62
1951	27
1952	21
1953	20
1954	39
1955	5
1963	43
1964	55
1965	33
1966	49
1967	52
1968	51
1969	44
1970	55
1971	70
1972	60
1973	58
1974	52
1975	61
1976	47
1977	57
1978	44
1979	42
1980	46
1981	45
1982	40
1983	34
1984	38
1985	31

Wettest Day of Each Month

Dec: 132.1 mm (5.2 in)

The wettest day on record for each calendar month at Santiam Pass. The most was 132.1 mm (5.2 in) on 22 December 1964.

Record daily precipitation for each month at Santiam Pass
Month	Record daily precipitation (mm)	Date
Jan	115.3 mm (4.5 in)	15 January 1974
Feb	73.9 mm (2.9 in)	14 February 1982
Mar	86.9 mm (3.4 in)	2 March 1972
Apr	52.6 mm (2.1 in)	19 April 1965
May	38.6 mm (1.5 in)	5 May 1979
Jun	83.3 mm (3.3 in)	8 June 1981
Jul	35.6 mm (1.4 in)	2 July 1983
Aug	39.1 mm (1.5 in)	24 August 1977
Sep	52.6 mm (2.1 in)	1 September 1971
Oct	59.4 mm (2.3 in)	31 October 1973
Nov	85.6 mm (3.4 in)	8 November 1963
Dec	132.1 mm (5.2 in)	22 December 1964

Period of Record Coverage

1946 to 1985

33 years of record at Santiam Pass, 1946 to 1985. 12 years have data for under 90 percent of days and are left out of rankings: 1946, 1948, 1949, 1950, 1951, 1952, 1953, 1954 and others.

Days with data per year at Santiam Pass
Year	Days with data	Share of year	Complete
1946	31	8%	No
1947	340	93%	Yes
1948	316	86%	No
1949	282	77%	No
1950	253	69%	No
1951	191	52%	No
1952	119	33%	No
1953	112	31%	No
1954	165	45%	No
1955	51	14%	No
1963	262	72%	No
1964	349	95%	Yes
1965	341	93%	Yes
1966	347	95%	Yes
1967	342	94%	Yes
1968	343	94%	Yes
1969	350	96%	Yes
1970	355	97%	Yes
1971	327	90%	No
1972	353	96%	Yes
1973	347	95%	Yes
1974	351	96%	Yes
1975	353	97%	Yes
1976	354	97%	Yes
1977	338	93%	Yes
1978	352	96%	Yes
1979	351	96%	Yes
1980	344	94%	Yes
1981	339	93%	Yes
1982	347	95%	Yes
1983	332	91%	Yes
1984	337	92%	Yes
1985	265	73%	No

Latest Records

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

Climate Trend

17 complete years, 1947 to 1984

One stripe for each of 17 complete years at Santiam Pass, 1947 to 1984. Blue stripes are years cooler than the station's own mean of 4.7 C (40.5 F); red stripes are warmer. The coolest year was 1982, at 3.5 C (38.3 F), and the warmest was 1947, at 5.5 C (42.0 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Santiam Pass as warming stripes, 1947 to 1984
Year	Annual mean temperature	Difference from the station mean
1947	5.5 C	+0.82 C
1966	5.3 C	+0.55 C
1969	4.8 C	+0.11 C
1970	4.6 C	-0.09 C
1972	4.5 C	-0.24 C
1973	4.8 C	+0.09 C
1974	4.7 C	+0.02 C
1975	4.2 C	-0.51 C
1976	5.1 C	+0.42 C
1977	5.0 C	+0.27 C
1978	4.4 C	-0.35 C
1979	4.9 C	+0.20 C
1980	5.2 C	+0.50 C
1981	5.3 C	+0.55 C
1982	3.5 C	-1.20 C
1983	4.4 C	-0.37 C
1984	4.0 C	-0.76 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1946 to 1985

Yearly extremes at Santiam Pass: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	35.6 C (96.1 F)	1972	31.1 C (88.0 F)	33
Coldest night (TNn)	-30.0 C (-22.0 F)	1950	-21.1 C (-6.0 F)	33
Wettest day (Rx1day)	132.1 mm (5.2 in)	1964	68.6 mm (2.7 in)	30
Wettest five days (Rx5day)	430.6 mm (17.0 in)	1964	193.3 mm (7.6 in)	28
Longest dry spell (CDD)	67 days	1969	27 days	29

Hottest day (TXx)

The hottest day of the year at Santiam Pass, 1946 to 1985. The record is 35.6 C (96.1 F) in 1972, marked on the chart; the median year is 31.1 C (88.0 F).

Hottest day (TXx) at Santiam Pass by year
Year	Hottest day (TXx)
1946	10.0 C (50.0 F)
1947	28.3 C (82.9 F)
1948	33.3 C (91.9 F)
1949	26.7 C (80.1 F)
1950	29.4 C (84.9 F)
1951	21.1 C (70.0 F)
1952	19.4 C (66.9 F)
1953	13.3 C (55.9 F)
1954	26.7 C (80.1 F)
1955	12.8 C (55.0 F)
1963	29.4 C (84.9 F)
1964	31.7 C (89.1 F)
1965	30.6 C (87.1 F)
1966	30.0 C (86.0 F)
1967	34.4 C (93.9 F)
1968	31.7 C (89.1 F)
1969	30.6 C (87.1 F)
1970	31.7 C (89.1 F)
1971	33.9 C (93.0 F)
1972	35.6 C (96.1 F)
1973	30.0 C (86.0 F)
1974	31.1 C (88.0 F)
1975	31.7 C (89.1 F)
1976	28.9 C (84.0 F)
1977	33.9 C (93.0 F)
1978	32.2 C (90.0 F)
1979	33.3 C (91.9 F)
1980	33.3 C (91.9 F)
1981	33.9 C (93.0 F)
1982	31.1 C (88.0 F)
1983	30.0 C (86.0 F)
1984	31.7 C (89.1 F)
1985	32.2 C (90.0 F)

Coldest night (TNn)

The coldest night of the year at Santiam Pass, 1946 to 1985. The record is -30.0 C (-22.0 F) in 1950, marked on the chart; the median year is -21.1 C (-6.0 F).

Coldest night (TNn) at Santiam Pass by year
Year	Coldest night (TNn)
1946	-12.8 C (9.0 F)
1947	-17.2 C (1.0 F)
1948	-21.1 C (-6.0 F)
1949	-23.3 C (-9.9 F)
1950	-30.0 C (-22.0 F)
1951	-24.4 C (-11.9 F)
1952	-16.7 C (1.9 F)
1953	-12.2 C (10.0 F)
1954	-17.8 C (0.0 F)
1955	-15.0 C (5.0 F)
1963	-12.8 C (9.0 F)
1964	-26.1 C (-15.0 F)
1965	-17.2 C (1.0 F)
1966	-17.2 C (1.0 F)
1967	-15.6 C (3.9 F)
1968	-25.0 C (-13.0 F)
1969	-22.2 C (-8.0 F)
1970	-18.9 C (-2.0 F)
1971	-22.2 C (-8.0 F)
1972	-24.4 C (-11.9 F)
1973	-21.7 C (-7.1 F)
1974	-21.7 C (-7.1 F)
1975	-20.0 C (-4.0 F)
1976	-17.8 C (0.0 F)
1977	-16.1 C (3.0 F)
1978	-25.6 C (-14.1 F)
1979	-24.4 C (-11.9 F)
1980	-22.8 C (-9.0 F)
1981	-14.4 C (6.1 F)
1982	-22.8 C (-9.0 F)
1983	-26.7 C (-16.1 F)
1984	-18.3 C (-0.9 F)
1985	-21.1 C (-6.0 F)

Wettest day (Rx1day)

The wettest day of the year at Santiam Pass, 1946 to 1985. The record is 132.1 mm (5.2 in) in 1964, marked on the chart; the median year is 68.6 mm (2.7 in).

Wettest day (Rx1day) at Santiam Pass by year
Year	Wettest day (Rx1day)
1946	n/a
1947	61.0 mm (2.4 in)
1948	0.0 mm (0.00 in)
1949	0.0 mm (0.00 in)
1950	57.4 mm (2.3 in)
1951	52.6 mm (2.1 in)
1952	0.0 mm (0.00 in)
1953	n/a
1954	31.0 mm (1.2 in)
1955	n/a
1963	85.6 mm (3.4 in)
1964	132.1 mm (5.2 in)
1965	86.6 mm (3.4 in)
1966	75.9 mm (3.0 in)
1967	60.5 mm (2.4 in)
1968	63.2 mm (2.5 in)
1969	76.2 mm (3.0 in)
1970	71.6 mm (2.8 in)
1971	85.1 mm (3.4 in)
1972	86.9 mm (3.4 in)
1973	59.4 mm (2.3 in)
1974	115.3 mm (4.5 in)
1975	80.5 mm (3.2 in)
1976	62.2 mm (2.4 in)
1977	89.7 mm (3.5 in)
1978	65.5 mm (2.6 in)
1979	49.8 mm (2.0 in)
1980	85.3 mm (3.4 in)
1981	83.3 mm (3.3 in)
1982	73.9 mm (2.9 in)
1983	59.7 mm (2.4 in)
1984	78.7 mm (3.1 in)
1985	43.9 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Santiam Pass, 1946 to 1985. The record is 430.6 mm (17.0 in) in 1964, marked on the chart; the median year is 193.3 mm (7.6 in).

Wettest five days (Rx5day) at Santiam Pass by year
Year	Wettest five days (Rx5day)
1946	n/a
1947	n/a
1948	0.0 mm (0.00 in)
1949	0.0 mm (0.00 in)
1950	73.6 mm (2.9 in)
1951	174.2 mm (6.9 in)
1952	n/a
1953	n/a
1954	71.9 mm (2.8 in)
1955	n/a
1963	178.4 mm (7.0 in)
1964	430.6 mm (17.0 in)
1965	220.5 mm (8.7 in)
1966	290.9 mm (11.5 in)
1967	152.8 mm (6.0 in)
1968	192.5 mm (7.6 in)
1969	204.7 mm (8.1 in)
1970	222.4 mm (8.8 in)
1971	264.0 mm (10.4 in)
1972	245.9 mm (9.7 in)
1973	183.3 mm (7.2 in)
1974	317.8 mm (12.5 in)
1975	199.7 mm (7.9 in)
1976	228.9 mm (9.0 in)
1977	253.3 mm (10.0 in)
1978	144.5 mm (5.7 in)
1979	134.9 mm (5.3 in)
1980	248.2 mm (9.8 in)
1981	206.5 mm (8.1 in)
1982	194.1 mm (7.6 in)
1983	149.7 mm (5.9 in)
1984	173.7 mm (6.8 in)
1985	130.7 mm (5.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Santiam Pass, 1946 to 1985. The record is 67 days in 1969, marked on the chart; the median year is 27 days.

Longest dry spell (CDD) at Santiam Pass by year
Year	Longest dry spell (CDD)
1946	n/a
1947	n/a
1948	31 days
1949	11 days
1950	24 days
1951	27 days
1952	1 day
1953	n/a
1954	13 days
1955	n/a
1963	33 days
1964	21 days
1965	21 days
1966	32 days
1967	66 days
1968	13 days
1969	67 days
1970	33 days
1971	21 days
1972	23 days
1973	22 days
1974	22 days
1975	32 days
1976	20 days
1977	29 days
1978	40 days
1979	35 days
1980	41 days
1981	55 days
1982	27 days
1983	16 days
1984	36 days
1985	52 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 Santiam Pass standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Santiam Pass 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 2026-10-15 (15 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).