Record envelope, standing records and threshold days for Whitehorse Rch (USC00359290), Oregon, United States, with 42 years of record.
Key Facts for Whitehorse Rch
Whitehorse Rch (USC00359290) is a weather station in Oregon, United States at 42.34 latitude and -118.23 longitude, 1,335 m (4,380 ft) above sea level.
The station reports from 1965 to 2006, 42 years of record.
1,464 records set at Whitehorse Rch still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Whitehorse Rch tied a monthly record high minimum temperature of 10.6 C (51.1 F) on 31 March 2006.
About the Station
Location: Oregon, United States, 42.34 latitude, -118.23 longitude.
Elevation: 1,335 m (4,380 ft).
Period of record: 1965 to 2006, 42 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record
Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Whitehorse Rch. 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 Whitehorse Rch, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
18.3 C (64.9 F)
-26.1 C (-15.0 F)
n/a
n/a
Feb
26.7 C (80.1 F)
-29.4 C (-20.9 F)
n/a
n/a
Mar
28.3 C (82.9 F)
-20.6 C (-5.1 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-13.3 C (8.1 F)
n/a
n/a
May
35.0 C (95.0 F)
-11.1 C (12.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-6.1 C (21.0 F)
n/a
n/a
Jul
40.6 C (105.1 F)
-1.7 C (28.9 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-2.2 C (28.0 F)
n/a
n/a
Sep
37.2 C (99.0 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-18.3 C (-0.9 F)
n/a
n/a
Nov
23.9 C (75.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Dec
18.3 C (64.9 F)
-32.2 C (-26.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Whitehorse Rch still stand. 1985 holds the most, with 71.
Standing records at Whitehorse Rch by the year they were set
Year set
Standing records
1965
27
1966
50
1967
13
1968
42
1969
35
1970
47
1971
49
1972
57
1973
35
1974
39
1975
39
1976
40
1977
41
1978
28
1979
41
1980
50
1981
30
1982
40
1983
37
1984
34
1985
71
1986
32
1987
28
1988
46
1989
37
1990
58
1991
24
1992
28
1993
45
1994
45
1995
38
1996
45
1997
23
1998
21
2001
6
2002
34
2003
46
2004
26
2005
22
2006
15
All-Time Record Progression
3 new records
3 all-time records were set at Whitehorse Rch between 25 June 2002 and 23 July 2003. Each dot is a new record.
When Whitehorse Rch set new all-time records
Date
Kind
Detail
2002-06-25
Record high maximum temperature
Record high maximum temperature 39.4 C (102.9 F)
2003-07-22
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
2003-07-23
Record high maximum temperature
Record high maximum temperature 40.6 C (105.1 F)
Wettest Day of Each Month
Feb: 54.4 mm (2.1 in)
The wettest day on record for each calendar month at Whitehorse Rch. The most was 54.4 mm (2.1 in) on 24 February 1987.
Record daily precipitation for each month at Whitehorse Rch
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
1 January 1982
Feb
54.4 mm (2.1 in)
24 February 1987
Mar
42.2 mm (1.7 in)
8 March 1986
Apr
50.8 mm (2.0 in)
18 April 1987
May
43.7 mm (1.7 in)
5 May 1995
Jun
19.1 mm (0.8 in)
18 June 1979
Jul
28.7 mm (1.1 in)
1 July 1982
Aug
52.1 mm (2.1 in)
29 August 1984
Sep
33.3 mm (1.3 in)
30 September 1971
Oct
16.5 mm (0.6 in)
26 October 1991
Nov
25.4 mm (1.0 in)
30 November 1981
Dec
51.6 mm (2.0 in)
31 December 1984
Period of Record Coverage
1965 to 2006
Complete yearUnder 90 percent of days
40 years of record at Whitehorse Rch, 1965 to 2006. 21 years have data for under 90 percent of days and are left out of rankings: 1965, 1966, 1967, 1968, 1969, 1981, 1984, 1985 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 21 complete years at Whitehorse Rch, 1970 to 2004. Blue stripes are years cooler than the station's own mean of 9.1 C (48.4 F); red stripes are warmer. The coolest year was 1982, at 7.8 C (46.0 F), and the warmest was 2003, at 10.7 C (51.2 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Whitehorse Rch as warming stripes, 1970 to 2004
Year
Annual mean temperature
Difference from the station mean
1970
8.6 C
-0.50 C
1971
8.5 C
-0.61 C
1972
8.6 C
-0.49 C
1973
9.5 C
+0.32 C
1974
9.1 C
-0.08 C
1975
8.3 C
-0.82 C
1976
8.9 C
-0.24 C
1977
9.1 C
-0.02 C
1978
9.0 C
-0.12 C
1979
9.2 C
+0.03 C
1980
9.3 C
+0.19 C
1981
9.8 C
+0.66 C
1982
7.8 C
-1.36 C
1983
8.8 C
-0.29 C
1988
9.7 C
+0.53 C
1990
9.0 C
-0.17 C
1991
8.9 C
-0.19 C
1994
9.6 C
+0.45 C
2002
9.7 C
+0.56 C
2003
10.7 C
+1.54 C
2004
9.7 C
+0.56 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
1965 to 2006
Yearly extremes at Whitehorse Rch: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.6 C (105.1 F)
2003
36.1 C (97.0 F)
40
Coldest night (TNn)
-32.2 C (-26.0 F)
1972
-20.6 C (-5.1 F)
40
Wettest day (Rx1day)
54.4 mm (2.1 in)
1987
20.2 mm (0.8 in)
40
Wettest five days (Rx5day)
103.1 mm (4.1 in)
1987
29.3 mm (1.2 in)
40
Longest dry spell (CDD)
165 days
1994
46 days
40
Hottest day (TXx)
The hottest day of the year at Whitehorse Rch, 1965 to 2006. The record is 40.6 C (105.1 F) in 2003, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Whitehorse Rch by year
Year
Hottest day (TXx)
1965
33.9 C (93.0 F)
1966
36.1 C (97.0 F)
1967
26.7 C (80.1 F)
1968
38.9 C (102.0 F)
1969
36.1 C (97.0 F)
1970
35.0 C (95.0 F)
1971
36.1 C (97.0 F)
1972
36.7 C (98.1 F)
1973
35.0 C (95.0 F)
1974
35.0 C (95.0 F)
1975
35.6 C (96.1 F)
1976
34.4 C (93.9 F)
1977
35.0 C (95.0 F)
1978
35.6 C (96.1 F)
1979
37.8 C (100.0 F)
1980
36.1 C (97.0 F)
1981
37.2 C (99.0 F)
1982
33.3 C (91.9 F)
1983
36.7 C (98.1 F)
1984
37.2 C (99.0 F)
1985
36.1 C (97.0 F)
1986
36.1 C (97.0 F)
1987
35.6 C (96.1 F)
1988
37.8 C (100.0 F)
1989
37.2 C (99.0 F)
1990
38.3 C (100.9 F)
1991
35.0 C (95.0 F)
1992
36.7 C (98.1 F)
1993
33.9 C (93.0 F)
1994
38.3 C (100.9 F)
1995
35.0 C (95.0 F)
1996
36.7 C (98.1 F)
1997
35.6 C (96.1 F)
1998
37.2 C (99.0 F)
2001
26.7 C (80.1 F)
2002
39.4 C (102.9 F)
2003
40.6 C (105.1 F)
2004
35.6 C (96.1 F)
2005
36.7 C (98.1 F)
2006
26.7 C (80.1 F)
Coldest night (TNn)
The coldest night of the year at Whitehorse Rch, 1965 to 2006. The record is -32.2 C (-26.0 F) in 1972, marked on the chart; the median year is -20.6 C (-5.1 F).
Coldest night (TNn) at Whitehorse Rch by year
Year
Coldest night (TNn)
1965
-19.4 C (-2.9 F)
1966
-21.7 C (-7.1 F)
1967
-21.7 C (-7.1 F)
1968
-17.8 C (0.0 F)
1969
-15.0 C (5.0 F)
1970
-21.7 C (-7.1 F)
1971
-20.6 C (-5.1 F)
1972
-32.2 C (-26.0 F)
1973
-18.9 C (-2.0 F)
1974
-25.0 C (-13.0 F)
1975
-19.4 C (-2.9 F)
1976
-20.6 C (-5.1 F)
1977
-23.9 C (-11.0 F)
1978
-25.0 C (-13.0 F)
1979
-25.0 C (-13.0 F)
1980
-23.9 C (-11.0 F)
1981
-12.2 C (10.0 F)
1982
-21.7 C (-7.1 F)
1983
-26.1 C (-15.0 F)
1984
-26.1 C (-15.0 F)
1985
-25.6 C (-14.1 F)
1986
-14.4 C (6.1 F)
1987
-16.7 C (1.9 F)
1988
-21.1 C (-6.0 F)
1989
-29.4 C (-20.9 F)
1990
-30.6 C (-23.1 F)
1991
-18.3 C (-0.9 F)
1992
-18.9 C (-2.0 F)
1993
-21.7 C (-7.1 F)
1994
-17.2 C (1.0 F)
1995
-17.2 C (1.0 F)
1996
-22.8 C (-9.0 F)
1997
-18.9 C (-2.0 F)
1998
-23.9 C (-11.0 F)
2001
-12.8 C (9.0 F)
2002
-18.3 C (-0.9 F)
2003
-16.1 C (3.0 F)
2004
-15.0 C (5.0 F)
2005
-12.2 C (10.0 F)
2006
-5.0 C (23.0 F)
Wettest day (Rx1day)
The wettest day of the year at Whitehorse Rch, 1965 to 2006. The record is 54.4 mm (2.1 in) in 1987, marked on the chart; the median year is 20.2 mm (0.8 in).
Wettest day (Rx1day) at Whitehorse Rch by year
Year
Wettest day (Rx1day)
1965
25.4 mm (1.0 in)
1966
11.9 mm (0.5 in)
1967
21.1 mm (0.8 in)
1968
13.5 mm (0.5 in)
1969
15.7 mm (0.6 in)
1970
17.3 mm (0.7 in)
1971
33.3 mm (1.3 in)
1972
14.2 mm (0.6 in)
1973
18.5 mm (0.7 in)
1974
14.7 mm (0.6 in)
1975
20.1 mm (0.8 in)
1976
17.3 mm (0.7 in)
1977
15.2 mm (0.6 in)
1978
20.1 mm (0.8 in)
1979
28.4 mm (1.1 in)
1980
12.2 mm (0.5 in)
1981
25.4 mm (1.0 in)
1982
28.7 mm (1.1 in)
1983
33.5 mm (1.3 in)
1984
52.1 mm (2.1 in)
1985
25.4 mm (1.0 in)
1986
42.2 mm (1.7 in)
1987
54.4 mm (2.1 in)
1988
14.0 mm (0.6 in)
1989
31.8 mm (1.3 in)
1990
18.5 mm (0.7 in)
1991
32.8 mm (1.3 in)
1992
14.2 mm (0.6 in)
1993
19.8 mm (0.8 in)
1994
19.3 mm (0.8 in)
1995
43.7 mm (1.7 in)
1996
20.3 mm (0.8 in)
1997
21.6 mm (0.9 in)
1998
38.1 mm (1.5 in)
2001
13.0 mm (0.5 in)
2002
8.9 mm (0.35 in)
2003
30.7 mm (1.2 in)
2004
21.6 mm (0.9 in)
2005
16.5 mm (0.6 in)
2006
21.3 mm (0.8 in)
Wettest five days (Rx5day)
The wettest five days of the year at Whitehorse Rch, 1965 to 2006. The record is 103.1 mm (4.1 in) in 1987, marked on the chart; the median year is 29.3 mm (1.2 in).
Wettest five days (Rx5day) at Whitehorse Rch by year
Year
Wettest five days (Rx5day)
1965
30.2 mm (1.2 in)
1966
17.3 mm (0.7 in)
1967
26.2 mm (1.0 in)
1968
22.6 mm (0.9 in)
1969
25.2 mm (1.0 in)
1970
24.4 mm (1.0 in)
1971
55.2 mm (2.2 in)
1972
27.9 mm (1.1 in)
1973
30.0 mm (1.2 in)
1974
37.9 mm (1.5 in)
1975
23.1 mm (0.9 in)
1976
23.9 mm (0.9 in)
1977
31.5 mm (1.2 in)
1978
27.2 mm (1.1 in)
1979
50.5 mm (2.0 in)
1980
36.1 mm (1.4 in)
1981
36.1 mm (1.4 in)
1982
41.7 mm (1.6 in)
1983
42.2 mm (1.7 in)
1984
81.3 mm (3.2 in)
1985
51.6 mm (2.0 in)
1986
10.1 mm (0.4 in)
1987
103.1 mm (4.1 in)
1988
14.0 mm (0.6 in)
1989
31.8 mm (1.3 in)
1990
29.6 mm (1.2 in)
1991
33.0 mm (1.3 in)
1992
14.2 mm (0.6 in)
1993
26.2 mm (1.0 in)
1994
21.5 mm (0.8 in)
1995
54.6 mm (2.1 in)
1996
24.4 mm (1.0 in)
1997
29.0 mm (1.1 in)
1998
61.2 mm (2.4 in)
2001
19.9 mm (0.8 in)
2002
13.5 mm (0.5 in)
2003
40.9 mm (1.6 in)
2004
25.5 mm (1.0 in)
2005
35.6 mm (1.4 in)
2006
21.3 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Whitehorse Rch, 1965 to 2006. The record is 165 days in 1994, marked on the chart; the median year is 46 days.
Longest dry spell (CDD) at Whitehorse Rch by year
Year
Longest dry spell (CDD)
1965
35 days
1966
39 days
1967
26 days
1968
65 days
1969
87 days
1970
45 days
1971
68 days
1972
70 days
1973
26 days
1974
57 days
1975
44 days
1976
105 days
1977
48 days
1978
60 days
1979
40 days
1980
41 days
1981
44 days
1982
72 days
1983
38 days
1984
27 days
1985
59 days
1986
92 days
1987
23 days
1988
43 days
1989
57 days
1990
42 days
1991
71 days
1992
47 days
1993
44 days
1994
165 days
1995
93 days
1996
49 days
1997
31 days
1998
26 days
2001
18 days
2002
57 days
2003
55 days
2004
27 days
2005
47 days
2006
30 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.
Frost Dates and Growing Season
21 years with a frost
Across 21 years with a frost, the median last spring frost at Whitehorse Rch falls on 8 June and the median first autumn frost on 13 September, which leaves a median of 96 days between them.
Frost dates and growing season at Whitehorse Rch
Measure
Median, all years
Earliest period
Recent period (1970 to 2004)
Recent against earliest
Fitted trend
Last spring frost
8 June
n/a
8 June
n/a
n/a
First autumn frost
13 September
n/a
13 September
n/a
n/a
Growing days
96 days
n/a
96 days
n/a
n/a
A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.
Download the Data
Data for Whitehorse Rch standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Whitehorse Rch 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.