Record envelope, standing records and threshold days for Big Piney (USC00480695), Wyoming, United States, with 79 years of record.
Key Facts for Big Piney
Big Piney (USC00480695) is a weather station in Wyoming, United States at 42.54 latitude and -110.13 longitude, 2,083 m (6,835 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Big Piney still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Big Piney set a daily record precipitation of 9.1 mm (0.36 in) on 13 August 2026.
About the Station
Location: Wyoming, United States, 42.54 latitude, -110.13 longitude.
Elevation: 2,083 m (6,835 ft).
Period of record: 1948 to 2026, 79 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 Big Piney. 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 Big Piney, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
8.9 C (48.0 F)
-45.0 C (-49.0 F)
n/a
n/a
Feb
12.2 C (54.0 F)
-42.2 C (-44.0 F)
n/a
n/a
Mar
17.8 C (64.0 F)
-35.6 C (-32.1 F)
n/a
n/a
Apr
23.9 C (75.0 F)
-20.6 C (-5.1 F)
n/a
n/a
May
28.9 C (84.0 F)
-17.8 C (0.0 F)
n/a
n/a
Jun
32.8 C (91.0 F)
-10.6 C (12.9 F)
n/a
n/a
Jul
35.6 C (96.1 F)
-5.0 C (23.0 F)
n/a
n/a
Aug
33.9 C (93.0 F)
-8.9 C (16.0 F)
n/a
n/a
Sep
31.7 C (89.1 F)
-15.0 C (5.0 F)
n/a
n/a
Oct
26.1 C (79.0 F)
-30.6 C (-23.1 F)
n/a
n/a
Nov
19.4 C (66.9 F)
-36.7 C (-34.1 F)
n/a
n/a
Dec
12.8 C (55.0 F)
-45.6 C (-50.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Big Piney still stand. 1962 holds the most, with 55.
Standing records at Big Piney by the year they were set
Year set
Standing records
1948
15
1949
43
1950
39
1951
24
1952
46
1953
23
1954
51
1955
41
1956
36
1957
27
1958
18
1959
21
1960
30
1961
27
1962
55
1963
36
1964
26
1965
26
1966
46
1967
19
1968
24
1969
46
1970
31
1971
32
1972
30
1973
26
1974
37
1975
13
1976
16
1977
17
1978
22
1979
12
1980
31
1981
8
1982
3
1983
29
1984
25
1985
5
1986
8
1987
20
1988
20
1989
28
1990
14
1991
10
1992
11
1993
41
1994
37
1995
25
1996
32
1997
29
1998
29
1999
26
2000
32
2001
29
2013
5
2014
12
All-Time Record Progression
5 new records
5 all-time records were set at Big Piney between 31 March 1983 and 21 July 1998. Each dot is a new record.
When Big Piney set new all-time records
Date
Kind
Detail
1983-03-31
Record daily precipitation
Record daily precipitation 58.4 mm (2.3 in)
1988-07-26
Record high minimum temperature
Record high minimum temperature 13.3 C (55.9 F)
1993-02-20
Record snow depth
Record snow depth 45.7 cm (18.0 in)
1997-08-05
Record daily precipitation
Record daily precipitation 63.0 mm (2.5 in)
1998-07-21
Record high minimum temperature
Record high minimum temperature 14.4 C (57.9 F)
Wettest Day of Each Month
Aug: 63.0 mm (2.5 in)
The wettest day on record for each calendar month at Big Piney. The most was 63.0 mm (2.5 in) on 5 August 1997.
Record daily precipitation for each month at Big Piney
Month
Record daily precipitation (mm)
Date
Jan
12.7 mm (0.5 in)
10 January 2023
Feb
14.5 mm (0.6 in)
13 February 1995
Mar
58.4 mm (2.3 in)
31 March 1983
Apr
17.5 mm (0.7 in)
22 April 1971
May
36.3 mm (1.4 in)
22 May 1976
Jun
34.5 mm (1.4 in)
11 June 1970
Jul
35.6 mm (1.4 in)
30 July 2013
Aug
63.0 mm (2.5 in)
5 August 1997
Sep
36.8 mm (1.4 in)
28 September 2014
Oct
41.1 mm (1.6 in)
9 October 1960
Nov
25.4 mm (1.0 in)
8 November 1950
Dec
26.7 mm (1.1 in)
15 December 1983
Period of Record Coverage
1948 to 2014
Complete yearUnder 90 percent of days
56 years of record at Big Piney, 1948 to 2014. 24 years have data for under 90 percent of days and are left out of rankings: 1948, 1953, 1975, 1976, 1977, 1978, 1979, 1981 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 27 complete years at Big Piney, 1949 to 1998. Blue stripes are years cooler than the station's own mean of 1.5 C (34.7 F); red stripes are warmer. The coolest year was 1952, at 0.4 C (32.8 F), and the warmest was 1994, at 3.6 C (38.5 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Big Piney as warming stripes, 1949 to 1998
Year
Annual mean temperature
Difference from the station mean
1949
0.6 C
-0.87 C
1950
1.1 C
-0.42 C
1951
1.1 C
-0.40 C
1952
0.4 C
-1.06 C
1954
3.0 C
+1.46 C
1955
1.5 C
-0.01 C
1956
2.0 C
+0.50 C
1957
1.5 C
+0.01 C
1960
1.9 C
+0.38 C
1961
1.6 C
+0.10 C
1962
1.4 C
-0.10 C
1964
0.6 C
-0.95 C
1965
1.2 C
-0.28 C
1966
0.6 C
-0.92 C
1967
1.7 C
+0.18 C
1968
0.8 C
-0.71 C
1969
1.2 C
-0.29 C
1970
1.7 C
+0.19 C
1971
1.1 C
-0.39 C
1972
1.3 C
-0.18 C
1973
0.9 C
-0.56 C
1974
1.5 C
+0.04 C
1993
0.6 C
-0.86 C
1994
3.6 C
+2.13 C
1995
2.9 C
+1.44 C
1997
2.1 C
+0.56 C
1998
2.5 C
+1.04 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
1948 to 2026
Yearly extremes at Big Piney: 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)
1976
31.7 C (89.1 F)
56
Coldest night (TNn)
-45.6 C (-50.1 F)
1983
-35.8 C (-32.5 F)
56
Wettest day (Rx1day)
63.0 mm (2.5 in)
1997
17.2 mm (0.7 in)
62
Wettest five days (Rx5day)
69.4 mm (2.7 in)
1997
25.7 mm (1.0 in)
62
Longest dry spell (CDD)
83 days
1964
36 days
62
Hottest day (TXx)
The hottest day of the year at Big Piney, 1948 to 2026. The record is 35.6 C (96.1 F) in 1976, marked on the chart; the median year is 31.7 C (89.1 F).
Hottest day (TXx) at Big Piney by year
Year
Hottest day (TXx)
1948
30.6 C (87.1 F)
1949
30.0 C (86.0 F)
1950
31.7 C (89.1 F)
1951
32.2 C (90.0 F)
1952
30.6 C (87.1 F)
1953
30.6 C (87.1 F)
1954
33.9 C (93.0 F)
1955
33.3 C (91.9 F)
1956
32.2 C (90.0 F)
1957
29.4 C (84.9 F)
1958
32.2 C (90.0 F)
1959
32.8 C (91.0 F)
1960
32.2 C (90.0 F)
1961
32.2 C (90.0 F)
1962
31.1 C (88.0 F)
1963
30.6 C (87.1 F)
1964
32.2 C (90.0 F)
1965
30.6 C (87.1 F)
1966
32.2 C (90.0 F)
1967
30.0 C (86.0 F)
1968
31.1 C (88.0 F)
1969
32.8 C (91.0 F)
1970
32.8 C (91.0 F)
1971
31.1 C (88.0 F)
1972
31.7 C (89.1 F)
1973
32.2 C (90.0 F)
1974
32.2 C (90.0 F)
1975
28.9 C (84.0 F)
1976
35.6 C (96.1 F)
1977
31.1 C (88.0 F)
1978
32.2 C (90.0 F)
1979
28.3 C (82.9 F)
1980
30.6 C (87.1 F)
1981
22.8 C (73.0 F)
1982
33.9 C (93.0 F)
1983
33.9 C (93.0 F)
1984
30.0 C (86.0 F)
1985
11.1 C (52.0 F)
1986
31.7 C (89.1 F)
1987
30.0 C (86.0 F)
1988
32.2 C (90.0 F)
1989
31.7 C (89.1 F)
1990
31.7 C (89.1 F)
1991
30.0 C (86.0 F)
1992
32.2 C (90.0 F)
1993
27.8 C (82.0 F)
1994
32.2 C (90.0 F)
1995
31.1 C (88.0 F)
1996
30.6 C (87.1 F)
1997
31.1 C (88.0 F)
1998
32.8 C (91.0 F)
1999
30.6 C (87.1 F)
2000
32.8 C (91.0 F)
2001
33.3 C (91.9 F)
2013
31.7 C (89.1 F)
2014
31.1 C (88.0 F)
2021
n/a
2022
n/a
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Coldest night (TNn)
The coldest night of the year at Big Piney, 1948 to 2026. The record is -45.6 C (-50.1 F) in 1983, marked on the chart; the median year is -35.8 C (-32.5 F).
Coldest night (TNn) at Big Piney by year
Year
Coldest night (TNn)
1948
-40.0 C (-40.0 F)
1949
-42.8 C (-45.0 F)
1950
-38.9 C (-38.0 F)
1951
-41.7 C (-43.1 F)
1952
-37.8 C (-36.0 F)
1953
-28.3 C (-18.9 F)
1954
-32.8 C (-27.0 F)
1955
-36.7 C (-34.1 F)
1956
-40.6 C (-41.1 F)
1957
-37.2 C (-35.0 F)
1958
-32.2 C (-26.0 F)
1959
-26.7 C (-16.1 F)
1960
-35.0 C (-31.0 F)
1961
-39.4 C (-38.9 F)
1962
-45.0 C (-49.0 F)
1963
-40.6 C (-41.1 F)
1964
-36.1 C (-33.0 F)
1965
-35.0 C (-31.0 F)
1966
-37.8 C (-36.0 F)
1967
-33.3 C (-27.9 F)
1968
-36.1 C (-33.0 F)
1969
-35.6 C (-32.1 F)
1970
-34.4 C (-29.9 F)
1971
-37.8 C (-36.0 F)
1972
-43.3 C (-45.9 F)
1973
-36.1 C (-33.0 F)
1974
-41.1 C (-42.0 F)
1975
-34.4 C (-29.9 F)
1976
-17.2 C (1.0 F)
1977
-24.4 C (-11.9 F)
1978
-33.3 C (-27.9 F)
1979
-42.2 C (-44.0 F)
1980
-32.8 C (-27.0 F)
1981
-27.2 C (-17.0 F)
1982
-34.4 C (-29.9 F)
1983
-45.6 C (-50.1 F)
1984
-43.9 C (-47.0 F)
1985
-42.2 C (-44.0 F)
1986
-24.4 C (-11.9 F)
1987
-34.4 C (-29.9 F)
1988
-32.8 C (-27.0 F)
1989
-41.7 C (-43.1 F)
1990
-43.9 C (-47.0 F)
1991
-31.1 C (-24.0 F)
1992
-36.1 C (-33.0 F)
1993
-36.7 C (-34.1 F)
1994
-27.8 C (-18.0 F)
1995
-36.1 C (-33.0 F)
1996
-36.1 C (-33.0 F)
1997
-33.9 C (-29.0 F)
1998
-33.9 C (-29.0 F)
1999
-24.4 C (-11.9 F)
2000
-26.1 C (-15.0 F)
2001
-30.0 C (-22.0 F)
2013
-5.6 C (21.9 F)
2014
-12.8 C (9.0 F)
2021
n/a
2022
n/a
2023
n/a
2024
n/a
2025
n/a
2026
n/a
Wettest day (Rx1day)
The wettest day of the year at Big Piney, 1948 to 2026. The record is 63.0 mm (2.5 in) in 1997, marked on the chart; the median year is 17.2 mm (0.7 in).
Wettest day (Rx1day) at Big Piney by year
Year
Wettest day (Rx1day)
1948
11.4 mm (0.4 in)
1949
34.5 mm (1.4 in)
1950
25.4 mm (1.0 in)
1951
16.8 mm (0.7 in)
1952
15.7 mm (0.6 in)
1953
17.3 mm (0.7 in)
1954
14.5 mm (0.6 in)
1955
20.6 mm (0.8 in)
1956
12.2 mm (0.5 in)
1957
15.0 mm (0.6 in)
1958
16.3 mm (0.6 in)
1959
15.2 mm (0.6 in)
1960
41.1 mm (1.6 in)
1961
11.2 mm (0.4 in)
1962
14.0 mm (0.6 in)
1963
31.0 mm (1.2 in)
1964
18.0 mm (0.7 in)
1965
33.5 mm (1.3 in)
1966
34.3 mm (1.4 in)
1967
12.4 mm (0.5 in)
1968
40.1 mm (1.6 in)
1969
13.2 mm (0.5 in)
1970
34.5 mm (1.4 in)
1971
21.1 mm (0.8 in)
1972
13.5 mm (0.5 in)
1973
12.7 mm (0.5 in)
1974
19.3 mm (0.8 in)
1975
15.2 mm (0.6 in)
1976
36.3 mm (1.4 in)
1977
11.7 mm (0.5 in)
1978
22.9 mm (0.9 in)
1979
3.0 mm (0.12 in)
1980
14.7 mm (0.6 in)
1981
14.2 mm (0.6 in)
1982
30.2 mm (1.2 in)
1983
58.4 mm (2.3 in)
1984
33.8 mm (1.3 in)
1985
4.6 mm (0.18 in)
1986
13.7 mm (0.5 in)
1987
28.4 mm (1.1 in)
1988
10.2 mm (0.4 in)
1989
20.8 mm (0.8 in)
1990
22.1 mm (0.9 in)
1991
16.5 mm (0.6 in)
1992
13.0 mm (0.5 in)
1993
9.7 mm (0.38 in)
1994
15.2 mm (0.6 in)
1995
17.8 mm (0.7 in)
1996
11.7 mm (0.5 in)
1997
63.0 mm (2.5 in)
1998
26.9 mm (1.1 in)
1999
15.5 mm (0.6 in)
2000
17.0 mm (0.7 in)
2001
7.6 mm (0.30 in)
2013
35.6 mm (1.4 in)
2014
36.8 mm (1.4 in)
2021
21.3 mm (0.8 in)
2022
37.1 mm (1.5 in)
2023
24.4 mm (1.0 in)
2024
12.4 mm (0.5 in)
2025
21.8 mm (0.9 in)
2026
18.0 mm (0.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Big Piney, 1948 to 2026. The record is 69.4 mm (2.7 in) in 1997, marked on the chart; the median year is 25.7 mm (1.0 in).
Wettest five days (Rx5day) at Big Piney by year
Year
Wettest five days (Rx5day)
1948
12.2 mm (0.5 in)
1949
61.1 mm (2.4 in)
1950
25.7 mm (1.0 in)
1951
24.9 mm (1.0 in)
1952
21.6 mm (0.9 in)
1953
21.9 mm (0.9 in)
1954
20.3 mm (0.8 in)
1955
29.7 mm (1.2 in)
1956
18.3 mm (0.7 in)
1957
48.2 mm (1.9 in)
1958
23.3 mm (0.9 in)
1959
24.8 mm (1.0 in)
1960
64.0 mm (2.5 in)
1961
11.7 mm (0.5 in)
1962
25.9 mm (1.0 in)
1963
36.0 mm (1.4 in)
1964
57.4 mm (2.3 in)
1965
42.4 mm (1.7 in)
1966
42.7 mm (1.7 in)
1967
23.6 mm (0.9 in)
1968
53.6 mm (2.1 in)
1969
22.4 mm (0.9 in)
1970
49.5 mm (1.9 in)
1971
40.6 mm (1.6 in)
1972
32.2 mm (1.3 in)
1973
30.8 mm (1.2 in)
1974
22.9 mm (0.9 in)
1975
29.2 mm (1.1 in)
1976
38.8 mm (1.5 in)
1977
19.8 mm (0.8 in)
1978
34.3 mm (1.4 in)
1979
3.6 mm (0.14 in)
1980
23.8 mm (0.9 in)
1981
20.3 mm (0.8 in)
1982
44.9 mm (1.8 in)
1983
59.2 mm (2.3 in)
1984
17.0 mm (0.7 in)
1985
1.8 mm (0.07 in)
1986
18.4 mm (0.7 in)
1987
14.5 mm (0.6 in)
1988
18.3 mm (0.7 in)
1989
20.8 mm (0.8 in)
1990
22.1 mm (0.9 in)
1991
16.5 mm (0.6 in)
1992
16.8 mm (0.7 in)
1993
18.1 mm (0.7 in)
1994
27.1 mm (1.1 in)
1995
25.7 mm (1.0 in)
1996
13.2 mm (0.5 in)
1997
69.4 mm (2.7 in)
1998
32.5 mm (1.3 in)
1999
16.0 mm (0.6 in)
2000
25.6 mm (1.0 in)
2001
11.2 mm (0.4 in)
2013
36.2 mm (1.4 in)
2014
49.0 mm (1.9 in)
2021
36.3 mm (1.4 in)
2022
40.1 mm (1.6 in)
2023
32.1 mm (1.3 in)
2024
20.1 mm (0.8 in)
2025
26.9 mm (1.1 in)
2026
27.9 mm (1.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Big Piney, 1948 to 2026. The record is 83 days in 1964, marked on the chart; the median year is 36 days.
Longest dry spell (CDD) at Big Piney by year
Year
Longest dry spell (CDD)
1948
32 days
1949
23 days
1950
41 days
1951
27 days
1952
64 days
1953
33 days
1954
30 days
1955
38 days
1956
41 days
1957
24 days
1958
61 days
1959
45 days
1960
50 days
1961
52 days
1962
51 days
1963
38 days
1964
83 days
1965
31 days
1966
36 days
1967
18 days
1968
30 days
1969
52 days
1970
34 days
1971
35 days
1972
25 days
1973
23 days
1974
54 days
1975
16 days
1976
35 days
1977
83 days
1978
27 days
1979
62 days
1980
32 days
1981
48 days
1982
25 days
1983
28 days
1984
34 days
1985
15 days
1986
44 days
1987
39 days
1988
46 days
1989
63 days
1990
20 days
1991
45 days
1992
33 days
1993
83 days
1994
44 days
1995
27 days
1996
60 days
1997
40 days
1998
39 days
1999
61 days
2000
29 days
2001
41 days
2013
12 days
2014
24 days
2021
35 days
2022
37 days
2023
28 days
2024
35 days
2025
29 days
2026
43 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
27 years with a frost
Across 27 years with a frost, the median last spring frost at Big Piney falls on 26 June and the median first autumn frost on 6 July, which leaves a median of 20 days between them.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
Frost dates and growing season at Big Piney
Measure
Median, all years
Earliest period
Recent period (1949 to 1998)
Recent against earliest
Fitted trend
Last spring frost
26 June
n/a
26 June
n/a
-1.2 days per decade
First autumn frost
6 July
n/a
6 July
n/a
+0.3 days per decade
Growing days
20 days
n/a
20 days
n/a
+1.5 days per decade
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
36 years, 1949 to 2025
A day with at least 18.7 mm (0.7 in) of rain is expected about once in 2 years. A day with at least 71.7 mm (2.8 in) of rain is expected about once in 100 years.
Rainfall return levels at Big Piney: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
18.7 mm (0.7 in)
5 years
28.0 mm (1.1 in)
10 years
35.7 mm (1.4 in)
25 years
47.8 mm (1.9 in)
50 years
58.8 mm (2.3 in)
Longer than the 36 years of record
100 years
71.7 mm (2.8 in)
Longer than the 36 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, 36 years of values from 1949 to 2025.
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: 63.0 mm (2.5 in) in 1997; 41.1 mm (1.6 in) in 1960; 40.1 mm (1.6 in) in 1968.
Download the Data
Data for Big Piney standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Big Piney 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.