Record envelope, standing records and threshold days for Ft Washakie 1 SE (USC00483570), Wyoming, United States, with 51 years of record.
Key Facts for Ft Washakie 1 SE
Ft Washakie 1 SE (USC00483570) is a weather station in Wyoming, United States at 42.98 latitude and -108.87 longitude, 1,693 m (5,554 ft) above sea level.
The station reports from 1929 to 1979, 51 years of record.
1,464 records set at Ft Washakie 1 SE still stand.
Records are tracked for prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ft Washakie 1 SE set a daily record snowfall of 10.2 cm (4.0 in) on 29 October 1979.
About the Station
Location: Wyoming, United States, 42.98 latitude, -108.87 longitude.
Elevation: 1,693 m (5,554 ft).
Period of record: 1929 to 1979, 51 years.
Eligible elements: 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 Ft Washakie 1 SE. 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 Ft Washakie 1 SE, 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)
-43.9 C (-47.0 F)
n/a
n/a
Feb
21.7 C (71.1 F)
-35.6 C (-32.1 F)
n/a
n/a
Mar
24.4 C (75.9 F)
-30.6 C (-23.1 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-23.9 C (-11.0 F)
n/a
n/a
May
31.1 C (88.0 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
34.4 C (93.9 F)
-5.0 C (23.0 F)
n/a
n/a
Jul
37.2 C (99.0 F)
-0.6 C (30.9 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-1.7 C (28.9 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-13.3 C (8.1 F)
n/a
n/a
Oct
29.4 C (84.9 F)
-25.0 C (-13.0 F)
n/a
n/a
Nov
24.4 C (75.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Dec
17.8 C (64.0 F)
-43.9 C (-47.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ft Washakie 1 SE still stand. 1949 holds the most, with 96.
Standing records at Ft Washakie 1 SE by the year they were set
Year set
Standing records
1931
2
1948
37
1949
96
1950
83
1951
53
1952
62
1953
47
1954
27
1955
14
1956
7
1957
35
1958
53
1959
61
1960
52
1961
34
1962
46
1963
55
1964
44
1965
58
1966
58
1967
34
1968
47
1969
55
1970
54
1971
36
1972
60
1973
49
1974
20
1975
38
1976
35
1977
27
1978
46
1979
39
All-Time Record Progression
4 new records
4 all-time records were set at Ft Washakie 1 SE between 8 June 1969 and 18 November 1978. Each dot is a new record.
When Ft Washakie 1 SE set new all-time records
Date
Kind
Detail
1969-06-08
Record daily precipitation
Record daily precipitation 65.3 mm (2.6 in)
1973-04-07
Record daily snowfall
Record daily snowfall 45.2 cm (17.8 in)
1978-11-17
Record daily snowfall
Record daily snowfall 52.3 cm (20.6 in)
1978-11-18
Record snow depth
Record snow depth 88.9 cm (35.0 in)
Wettest Day of Each Month
Jun: 65.3 mm (2.6 in)
The wettest day on record for each calendar month at Ft Washakie 1 SE. The most was 65.3 mm (2.6 in) on 8 June 1969.
Record daily precipitation for each month at Ft Washakie 1 SE
Month
Record daily precipitation (mm)
Date
Jan
17.8 mm (0.7 in)
3 January 1972
Feb
15.5 mm (0.6 in)
15 February 1967
Mar
27.2 mm (1.1 in)
25 March 1977
Apr
47.0 mm (1.9 in)
25 April 1971
May
52.3 mm (2.1 in)
8 May 1958
Jun
65.3 mm (2.6 in)
8 June 1969
Jul
54.9 mm (2.2 in)
12 July 1930
Aug
54.6 mm (2.1 in)
1 August 1931
Sep
32.0 mm (1.3 in)
20 September 1931
Oct
50.5 mm (2.0 in)
2 October 1930
Nov
30.5 mm (1.2 in)
17 November 1978
Dec
22.9 mm (0.9 in)
10 December 1970
Period of Record Coverage
1930 to 1979
Complete yearUnder 90 percent of days
33 years of record at Ft Washakie 1 SE, 1930 to 1979. 10 years have data for under 90 percent of days and are left out of rankings: 1930, 1948, 1954, 1955, 1956, 1957, 1968, 1973 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 20 complete years at Ft Washakie 1 SE, 1949 to 1976. Blue stripes are years cooler than the station's own mean of 6.1 C (42.9 F); red stripes are warmer. The coolest year was 1972, at 4.7 C (40.5 F), and the warmest was 1950, at 7.4 C (45.3 F). The strongest colour marks a difference of 1.4 C (2.5 F).
Annual mean temperature at Ft Washakie 1 SE as warming stripes, 1949 to 1976
Year
Annual mean temperature
Difference from the station mean
1949
6.8 C
+0.71 C
1950
7.4 C
+1.35 C
1951
6.4 C
+0.38 C
1952
7.3 C
+1.27 C
1953
7.3 C
+1.24 C
1958
6.8 C
+0.78 C
1959
5.5 C
-0.53 C
1960
5.6 C
-0.44 C
1961
6.2 C
+0.09 C
1962
6.5 C
+0.47 C
1963
6.5 C
+0.39 C
1964
5.4 C
-0.68 C
1966
6.2 C
+0.12 C
1969
6.1 C
+0.06 C
1970
5.2 C
-0.89 C
1971
5.0 C
-1.07 C
1972
4.7 C
-1.35 C
1974
5.7 C
-0.35 C
1975
4.8 C
-1.24 C
1976
5.8 C
-0.29 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
1929 to 1979
Yearly extremes at Ft Washakie 1 SE: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
38.3 C (100.9 F)
1979
34.4 C (93.9 F)
33
Coldest night (TNn)
-43.9 C (-47.0 F)
1978
-31.4 C (-24.5 F)
34
Wettest day (Rx1day)
65.3 mm (2.6 in)
1969
33.8 mm (1.3 in)
45
Wettest five days (Rx5day)
105.2 mm (4.1 in)
1969
49.1 mm (1.9 in)
45
Longest dry spell (CDD)
104 days
1956
40 days
45
Hottest day (TXx)
The hottest day of the year at Ft Washakie 1 SE, 1929 to 1979. The record is 38.3 C (100.9 F) in 1979, marked on the chart; the median year is 34.4 C (93.9 F).
Hottest day (TXx) at Ft Washakie 1 SE by year
Year
Hottest day (TXx)
1929
n/a
1930
-16.7 C (1.9 F)
1931
n/a
1932
n/a
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1948
36.7 C (98.1 F)
1949
37.8 C (100.0 F)
1950
36.7 C (98.1 F)
1951
37.2 C (99.0 F)
1952
36.1 C (97.0 F)
1953
34.4 C (93.9 F)
1954
30.0 C (86.0 F)
1955
35.0 C (95.0 F)
1956
35.0 C (95.0 F)
1957
32.2 C (90.0 F)
1958
33.3 C (91.9 F)
1959
33.9 C (93.0 F)
1960
35.0 C (95.0 F)
1961
35.0 C (95.0 F)
1962
33.9 C (93.0 F)
1963
36.1 C (97.0 F)
1964
35.6 C (96.1 F)
1965
33.9 C (93.0 F)
1966
36.1 C (97.0 F)
1967
32.2 C (90.0 F)
1968
33.3 C (91.9 F)
1969
35.0 C (95.0 F)
1970
35.0 C (95.0 F)
1971
33.3 C (91.9 F)
1972
33.3 C (91.9 F)
1973
35.6 C (96.1 F)
1974
34.4 C (93.9 F)
1975
34.4 C (93.9 F)
1976
34.4 C (93.9 F)
1977
34.4 C (93.9 F)
1978
33.9 C (93.0 F)
1979
38.3 C (100.9 F)
Coldest night (TNn)
The coldest night of the year at Ft Washakie 1 SE, 1929 to 1979. The record is -43.9 C (-47.0 F) in 1978, marked on the chart; the median year is -31.4 C (-24.5 F).
Coldest night (TNn) at Ft Washakie 1 SE by year
Year
Coldest night (TNn)
1929
n/a
1930
-24.4 C (-11.9 F)
1931
-23.9 C (-11.0 F)
1932
-21.1 C (-6.0 F)
1933
n/a
1934
n/a
1935
n/a
1936
n/a
1937
n/a
1938
n/a
1939
n/a
1940
n/a
1941
n/a
1948
-28.3 C (-18.9 F)
1949
-37.8 C (-36.0 F)
1950
-33.3 C (-27.9 F)
1951
-33.9 C (-29.0 F)
1952
-28.9 C (-20.0 F)
1953
-25.6 C (-14.1 F)
1954
-28.9 C (-20.0 F)
1955
-7.2 C (19.0 F)
1956
n/a
1957
-20.6 C (-5.1 F)
1958
-21.7 C (-7.1 F)
1959
-36.7 C (-34.1 F)
1960
-31.1 C (-24.0 F)
1961
-32.8 C (-27.0 F)
1962
-39.4 C (-38.9 F)
1963
-40.6 C (-41.1 F)
1964
-34.4 C (-29.9 F)
1965
-30.6 C (-23.1 F)
1966
-28.3 C (-18.9 F)
1967
-30.6 C (-23.1 F)
1968
-32.8 C (-27.0 F)
1969
-26.1 C (-15.0 F)
1970
-29.4 C (-20.9 F)
1971
-32.2 C (-26.0 F)
1972
-38.3 C (-36.9 F)
1973
-36.1 C (-33.0 F)
1974
-32.8 C (-27.0 F)
1975
-30.0 C (-22.0 F)
1976
-32.8 C (-27.0 F)
1977
-31.7 C (-25.1 F)
1978
-43.9 C (-47.0 F)
1979
-43.9 C (-47.0 F)
Wettest day (Rx1day)
The wettest day of the year at Ft Washakie 1 SE, 1929 to 1979. The record is 65.3 mm (2.6 in) in 1969, marked on the chart; the median year is 33.8 mm (1.3 in).
Wettest day (Rx1day) at Ft Washakie 1 SE by year
Year
Wettest day (Rx1day)
1929
37.6 mm (1.5 in)
1930
54.9 mm (2.2 in)
1931
54.6 mm (2.1 in)
1932
26.9 mm (1.1 in)
1933
33.8 mm (1.3 in)
1934
21.1 mm (0.8 in)
1935
24.9 mm (1.0 in)
1936
30.7 mm (1.2 in)
1937
29.7 mm (1.2 in)
1938
22.9 mm (0.9 in)
1939
38.9 mm (1.5 in)
1940
25.4 mm (1.0 in)
1941
5.1 mm (0.20 in)
1948
11.4 mm (0.4 in)
1949
21.8 mm (0.9 in)
1950
25.4 mm (1.0 in)
1951
42.7 mm (1.7 in)
1952
23.6 mm (0.9 in)
1953
25.1 mm (1.0 in)
1954
15.2 mm (0.6 in)
1955
22.1 mm (0.9 in)
1956
44.7 mm (1.8 in)
1957
38.1 mm (1.5 in)
1958
52.3 mm (2.1 in)
1959
16.3 mm (0.6 in)
1960
37.1 mm (1.5 in)
1961
46.7 mm (1.8 in)
1962
39.9 mm (1.6 in)
1963
63.0 mm (2.5 in)
1964
33.8 mm (1.3 in)
1965
50.3 mm (2.0 in)
1966
33.5 mm (1.3 in)
1967
51.8 mm (2.0 in)
1968
43.7 mm (1.7 in)
1969
65.3 mm (2.6 in)
1970
54.4 mm (2.1 in)
1971
47.0 mm (1.9 in)
1972
24.4 mm (1.0 in)
1973
26.7 mm (1.1 in)
1974
31.0 mm (1.2 in)
1975
40.4 mm (1.6 in)
1976
38.4 mm (1.5 in)
1977
41.4 mm (1.6 in)
1978
36.8 mm (1.4 in)
1979
33.3 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ft Washakie 1 SE, 1929 to 1979. The record is 105.2 mm (4.1 in) in 1969, marked on the chart; the median year is 49.1 mm (1.9 in).
Wettest five days (Rx5day) at Ft Washakie 1 SE by year
Year
Wettest five days (Rx5day)
1929
68.6 mm (2.7 in)
1930
96.9 mm (3.8 in)
1931
72.9 mm (2.9 in)
1932
49.9 mm (2.0 in)
1933
65.0 mm (2.6 in)
1934
40.2 mm (1.6 in)
1935
49.1 mm (1.9 in)
1936
44.0 mm (1.7 in)
1937
77.9 mm (3.1 in)
1938
28.5 mm (1.1 in)
1939
44.0 mm (1.7 in)
1940
34.3 mm (1.4 in)
1941
5.1 mm (0.20 in)
1948
19.1 mm (0.8 in)
1949
42.9 mm (1.7 in)
1950
51.1 mm (2.0 in)
1951
45.5 mm (1.8 in)
1952
32.7 mm (1.3 in)
1953
32.3 mm (1.3 in)
1954
15.2 mm (0.6 in)
1955
22.1 mm (0.9 in)
1956
44.7 mm (1.8 in)
1957
103.2 mm (4.1 in)
1958
60.7 mm (2.4 in)
1959
28.5 mm (1.1 in)
1960
47.3 mm (1.9 in)
1961
60.4 mm (2.4 in)
1962
57.5 mm (2.3 in)
1963
68.0 mm (2.7 in)
1964
66.1 mm (2.6 in)
1965
53.6 mm (2.1 in)
1966
44.4 mm (1.7 in)
1967
93.4 mm (3.7 in)
1968
68.8 mm (2.7 in)
1969
105.2 mm (4.1 in)
1970
74.2 mm (2.9 in)
1971
83.4 mm (3.3 in)
1972
30.8 mm (1.2 in)
1973
41.4 mm (1.6 in)
1974
31.0 mm (1.2 in)
1975
51.6 mm (2.0 in)
1976
38.4 mm (1.5 in)
1977
69.4 mm (2.7 in)
1978
72.1 mm (2.8 in)
1979
45.2 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ft Washakie 1 SE, 1929 to 1979. The record is 104 days in 1956, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at Ft Washakie 1 SE by year
Year
Longest dry spell (CDD)
1929
33 days
1930
38 days
1931
38 days
1932
42 days
1933
55 days
1934
39 days
1935
33 days
1936
36 days
1937
35 days
1938
35 days
1939
54 days
1940
52 days
1941
17 days
1948
30 days
1949
40 days
1950
53 days
1951
43 days
1952
71 days
1953
47 days
1954
92 days
1955
57 days
1956
104 days
1957
63 days
1958
40 days
1959
34 days
1960
40 days
1961
33 days
1962
40 days
1963
33 days
1964
41 days
1965
38 days
1966
34 days
1967
29 days
1968
26 days
1969
62 days
1970
67 days
1971
49 days
1972
66 days
1973
40 days
1974
53 days
1975
58 days
1976
48 days
1977
27 days
1978
51 days
1979
28 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
20 years with a frost
Across 20 years with a frost, the median last spring frost at Ft Washakie 1 SE falls on 7 June and the median first autumn frost on 7 September, which leaves a median of 89 days between them.
Frost dates and growing season at Ft Washakie 1 SE
Measure
Median, all years
Earliest period
Recent period (1949 to 1976)
Recent against earliest
Fitted trend
Last spring frost
7 June
n/a
7 June
n/a
n/a
First autumn frost
7 September
n/a
7 September
n/a
n/a
Growing days
89 days
n/a
89 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.
Rainfall Return Levels
38 years, 1929 to 1977
A day with at least 35.6 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 72.9 mm (2.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Ft Washakie 1 SE: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
35.6 mm (1.4 in)
5 years
47.6 mm (1.9 in)
10 years
54.7 mm (2.2 in)
25 years
62.7 mm (2.5 in)
50 years
68.0 mm (2.7 in)
Longer than the 38 years of record
100 years
72.9 mm (2.9 in)
Longer than the 38 years of record
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 38 years of values from 1929 to 1977.
A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.
The largest wettest-day totals in the fit: 65.3 mm (2.6 in) in 1969; 63.0 mm (2.5 in) in 1963; 54.9 mm (2.2 in) in 1930.
Download the Data
Data for Ft Washakie 1 SE standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ft Washakie 1 SE 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.