Record envelope, standing records and threshold days for Grouse Creek (USC00423486), Utah, United States, with 53 years of record.
Key Facts for Grouse Creek
Grouse Creek (USC00423486) is a weather station in Utah, United States at 41.71 latitude and -113.87 longitude, 1,622 m (5,320 ft) above sea level.
The station reports from 1959 to 2011, 53 years of record.
1,464 records set at Grouse Creek still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Grouse Creek set a daily record precipitation of 3.0 mm (0.12 in) on 29 August 2011.
About the Station
Location: Utah, United States, 41.71 latitude, -113.87 longitude.
Elevation: 1,622 m (5,320 ft).
Period of record: 1959 to 2011, 53 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 Grouse Creek. 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 Grouse Creek, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
14.4 C (57.9 F)
-32.2 C (-26.0 F)
n/a
n/a
Feb
18.3 C (64.9 F)
-27.8 C (-18.0 F)
n/a
n/a
Mar
23.9 C (75.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Apr
28.9 C (84.0 F)
-15.6 C (3.9 F)
n/a
n/a
May
33.9 C (93.0 F)
-9.4 C (15.1 F)
n/a
n/a
Jun
37.8 C (100.0 F)
-4.4 C (24.1 F)
n/a
n/a
Jul
40.0 C (104.0 F)
-1.1 C (30.0 F)
n/a
n/a
Aug
38.3 C (100.9 F)
-3.9 C (25.0 F)
n/a
n/a
Sep
36.1 C (97.0 F)
-8.9 C (16.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-17.8 C (0.0 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-24.4 C (-11.9 F)
n/a
n/a
Dec
17.2 C (63.0 F)
-31.7 C (-25.1 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Grouse Creek still stand. 1990 holds the most, with 51.
Standing records at Grouse Creek by the year they were set
Year set
Standing records
1959
39
1960
35
1961
31
1962
39
1963
45
1964
23
1965
20
1966
37
1967
24
1968
35
1969
38
1970
31
1971
37
1972
18
1973
23
1974
24
1975
35
1976
13
1977
32
1978
20
1979
36
1980
25
1981
17
1982
21
1983
24
1984
36
1985
41
1986
24
1987
24
1988
19
1989
30
1990
51
1991
16
1992
37
1993
30
1994
35
1995
31
1996
40
1997
13
1998
18
1999
20
2000
24
2001
26
2002
30
2003
38
2004
23
2005
13
2006
21
2007
19
2008
11
2009
25
2010
34
2011
13
All-Time Record Progression
6 new records
6 all-time records were set at Grouse Creek between 3 August 1992 and 28 March 2004. Each dot is a new record.
When Grouse Creek set new all-time records
Date
Kind
Detail
1992-08-03
Record high maximum temperature
Record high maximum temperature 38.3 C (100.9 F)
1998-07-21
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
2002-07-14
Record high maximum temperature
Record high maximum temperature 40.0 C (104.0 F)
2002-07-16
Record high minimum temperature
Record high minimum temperature 21.1 C (70.0 F)
2004-01-01
Record daily snowfall
Record daily snowfall 27.9 cm (11.0 in)
2004-03-28
Record daily precipitation
Record daily precipitation 76.2 mm (3.0 in)
Wettest Day of Each Month
Mar: 76.2 mm (3.0 in)
The wettest day on record for each calendar month at Grouse Creek. The most was 76.2 mm (3.0 in) on 28 March 2004.
Record daily precipitation for each month at Grouse Creek
Month
Record daily precipitation (mm)
Date
Jan
25.4 mm (1.0 in)
11 January 1979
Feb
16.8 mm (0.7 in)
15 February 1998
Mar
76.2 mm (3.0 in)
28 March 2004
Apr
23.9 mm (0.9 in)
7 April 1978
May
45.5 mm (1.8 in)
28 May 1996
Jun
76.2 mm (3.0 in)
20 June 2004
Jul
49.5 mm (1.9 in)
31 July 1960
Aug
50.8 mm (2.0 in)
12 August 2001
Sep
54.6 mm (2.1 in)
2 September 1960
Oct
47.2 mm (1.9 in)
5 October 1972
Nov
29.2 mm (1.1 in)
24 November 1965
Dec
50.8 mm (2.0 in)
18 December 2002
Period of Record Coverage
1959 to 2011
Complete yearUnder 90 percent of days
53 years of record at Grouse Creek, 1959 to 2011. 22 years have data for under 90 percent of days and are left out of rankings: 1959, 1964, 1965, 1966, 1968, 1969, 1970, 1971 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Grouse Creek, 1960 to 2010. Blue stripes are years cooler than the station's own mean of 7.2 C (45.0 F); red stripes are warmer. The coolest year was 1984, at 5.1 C (41.2 F), and the warmest was 2003, at 8.6 C (47.5 F). The strongest colour marks a difference of 2.2 C (4.0 F).
Annual mean temperature at Grouse Creek as warming stripes, 1960 to 2010
Year
Annual mean temperature
Difference from the station mean
1960
7.6 C
+0.43 C
1962
7.2 C
-0.03 C
1963
7.2 C
+0.00 C
1967
7.5 C
+0.31 C
1968
6.8 C
-0.38 C
1969
7.2 C
-0.04 C
1970
6.7 C
-0.51 C
1971
6.4 C
-0.86 C
1980
7.0 C
-0.17 C
1983
6.8 C
-0.38 C
1984
5.1 C
-2.12 C
1985
5.9 C
-1.34 C
1986
7.5 C
+0.27 C
1987
7.8 C
+0.54 C
1988
7.8 C
+0.54 C
1989
7.5 C
+0.33 C
1990
7.8 C
+0.63 C
1991
7.4 C
+0.22 C
1992
8.6 C
+1.39 C
1993
5.7 C
-1.47 C
1994
8.2 C
+1.03 C
1995
7.6 C
+0.39 C
1996
7.6 C
+0.43 C
1997
7.3 C
+0.12 C
1998
7.6 C
+0.37 C
1999
7.3 C
+0.09 C
2000
7.8 C
+0.54 C
2002
6.8 C
-0.46 C
2003
8.6 C
+1.40 C
2004
7.2 C
-0.01 C
2005
7.1 C
-0.13 C
2006
7.0 C
-0.18 C
2009
6.7 C
-0.50 C
2010
6.6 C
-0.57 C
The fitted trend in annual mean temperature here over 1960 to 2010 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.2 to 0.4) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Grouse Creek
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.1 C (-0.1 to 0.2) per decade
0.1 F (-0.2 to 0.4) per decade
1960 to 2010
34
Not clearly different from zero
Mean daily maximum
-0.04 C (-0.26 to 0.18) per decade
-0.1 F (-0.5 to 0.3) per decade
1960 to 2010
34
Not clearly different from zero
Mean daily minimum
0.16 C (-0.02 to 0.33) per decade
0.28 F (-0.03 to 0.60) per decade
1960 to 2010
34
Not clearly different from zero
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
1959 to 2011
Yearly extremes at Grouse Creek: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
40.0 C (104.0 F)
2002
36.1 C (97.0 F)
53
Coldest night (TNn)
-32.2 C (-26.0 F)
1963
-23.3 C (-9.9 F)
53
Wettest day (Rx1day)
76.2 mm (3.0 in)
2004
20.8 mm (0.8 in)
53
Wettest five days (Rx5day)
101.6 mm (4.0 in)
2002
33.8 mm (1.3 in)
53
Longest dry spell (CDD)
87 days
1988
34 days
53
Hottest day (TXx)
The hottest day of the year at Grouse Creek, 1959 to 2011. The record is 40.0 C (104.0 F) in 2002, marked on the chart; the median year is 36.1 C (97.0 F).
Hottest day (TXx) at Grouse Creek by year
Year
Hottest day (TXx)
1959
36.1 C (97.0 F)
1960
37.8 C (100.0 F)
1961
36.1 C (97.0 F)
1962
36.1 C (97.0 F)
1963
35.6 C (96.1 F)
1964
25.6 C (78.1 F)
1965
35.0 C (95.0 F)
1966
32.2 C (90.0 F)
1967
35.6 C (96.1 F)
1968
37.8 C (100.0 F)
1969
37.8 C (100.0 F)
1970
35.6 C (96.1 F)
1971
36.7 C (98.1 F)
1972
35.0 C (95.0 F)
1973
35.6 C (96.1 F)
1974
36.7 C (98.1 F)
1975
35.0 C (95.0 F)
1976
36.1 C (97.0 F)
1977
36.1 C (97.0 F)
1978
37.8 C (100.0 F)
1979
37.8 C (100.0 F)
1980
35.0 C (95.0 F)
1981
36.1 C (97.0 F)
1982
30.6 C (87.1 F)
1983
36.7 C (98.1 F)
1984
33.3 C (91.9 F)
1985
37.2 C (99.0 F)
1986
33.3 C (91.9 F)
1987
34.4 C (93.9 F)
1988
37.8 C (100.0 F)
1989
37.2 C (99.0 F)
1990
37.8 C (100.0 F)
1991
35.6 C (96.1 F)
1992
38.3 C (100.9 F)
1993
32.2 C (90.0 F)
1994
37.2 C (99.0 F)
1995
36.7 C (98.1 F)
1996
36.1 C (97.0 F)
1997
34.4 C (93.9 F)
1998
38.9 C (102.0 F)
1999
33.9 C (93.0 F)
2000
37.8 C (100.0 F)
2001
37.2 C (99.0 F)
2002
40.0 C (104.0 F)
2003
37.8 C (100.0 F)
2004
36.1 C (97.0 F)
2005
37.2 C (99.0 F)
2006
37.8 C (100.0 F)
2007
37.2 C (99.0 F)
2008
35.6 C (96.1 F)
2009
36.1 C (97.0 F)
2010
35.6 C (96.1 F)
2011
35.6 C (96.1 F)
Coldest night (TNn)
The coldest night of the year at Grouse Creek, 1959 to 2011. The record is -32.2 C (-26.0 F) in 1963, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Grouse Creek by year
Year
Coldest night (TNn)
1959
-20.0 C (-4.0 F)
1960
-26.7 C (-16.1 F)
1961
-22.2 C (-8.0 F)
1962
-26.1 C (-15.0 F)
1963
-32.2 C (-26.0 F)
1964
-24.4 C (-11.9 F)
1965
-18.9 C (-2.0 F)
1966
-24.4 C (-11.9 F)
1967
-22.8 C (-9.0 F)
1968
-25.0 C (-13.0 F)
1969
-21.1 C (-6.0 F)
1970
-23.3 C (-9.9 F)
1971
-25.0 C (-13.0 F)
1972
-27.2 C (-17.0 F)
1973
-25.0 C (-13.0 F)
1974
-27.2 C (-17.0 F)
1975
-22.8 C (-9.0 F)
1976
-20.6 C (-5.1 F)
1977
-21.7 C (-7.1 F)
1978
-23.3 C (-9.9 F)
1979
-29.4 C (-20.9 F)
1980
-23.9 C (-11.0 F)
1981
-18.3 C (-0.9 F)
1982
-27.8 C (-18.0 F)
1983
-23.9 C (-11.0 F)
1984
-29.4 C (-20.9 F)
1985
-25.6 C (-14.1 F)
1986
-21.1 C (-6.0 F)
1987
-23.3 C (-9.9 F)
1988
-26.1 C (-15.0 F)
1989
-26.7 C (-16.1 F)
1990
-31.7 C (-25.1 F)
1991
-21.1 C (-6.0 F)
1992
-22.2 C (-8.0 F)
1993
-25.0 C (-13.0 F)
1994
-22.2 C (-8.0 F)
1995
-21.7 C (-7.1 F)
1996
-26.1 C (-15.0 F)
1997
-18.9 C (-2.0 F)
1998
-23.3 C (-9.9 F)
1999
-20.0 C (-4.0 F)
2000
-17.8 C (0.0 F)
2001
-25.0 C (-13.0 F)
2002
-25.0 C (-13.0 F)
2003
-16.7 C (1.9 F)
2004
-22.2 C (-8.0 F)
2005
-22.2 C (-8.0 F)
2006
-20.6 C (-5.1 F)
2007
-21.7 C (-7.1 F)
2008
-22.8 C (-9.0 F)
2009
-26.1 C (-15.0 F)
2010
-23.9 C (-11.0 F)
2011
-27.2 C (-17.0 F)
Wettest day (Rx1day)
The wettest day of the year at Grouse Creek, 1959 to 2011. The record is 76.2 mm (3.0 in) in 2004, marked on the chart; the median year is 20.8 mm (0.8 in).
Wettest day (Rx1day) at Grouse Creek by year
Year
Wettest day (Rx1day)
1959
17.0 mm (0.7 in)
1960
54.6 mm (2.1 in)
1961
24.1 mm (0.9 in)
1962
14.7 mm (0.6 in)
1963
16.5 mm (0.6 in)
1964
15.2 mm (0.6 in)
1965
29.2 mm (1.1 in)
1966
12.7 mm (0.5 in)
1967
20.3 mm (0.8 in)
1968
17.5 mm (0.7 in)
1969
23.4 mm (0.9 in)
1970
10.7 mm (0.4 in)
1971
18.0 mm (0.7 in)
1972
47.2 mm (1.9 in)
1973
21.3 mm (0.8 in)
1974
14.0 mm (0.6 in)
1975
13.2 mm (0.5 in)
1976
19.1 mm (0.8 in)
1977
25.7 mm (1.0 in)
1978
24.4 mm (1.0 in)
1979
25.4 mm (1.0 in)
1980
17.8 mm (0.7 in)
1981
20.8 mm (0.8 in)
1982
24.1 mm (0.9 in)
1983
15.7 mm (0.6 in)
1984
39.1 mm (1.5 in)
1985
30.2 mm (1.2 in)
1986
25.1 mm (1.0 in)
1987
21.6 mm (0.9 in)
1988
14.2 mm (0.6 in)
1989
13.7 mm (0.5 in)
1990
18.3 mm (0.7 in)
1991
19.6 mm (0.8 in)
1992
14.5 mm (0.6 in)
1993
14.7 mm (0.6 in)
1994
16.8 mm (0.7 in)
1995
20.8 mm (0.8 in)
1996
45.5 mm (1.8 in)
1997
22.9 mm (0.9 in)
1998
30.7 mm (1.2 in)
1999
14.7 mm (0.6 in)
2000
23.6 mm (0.9 in)
2001
50.8 mm (2.0 in)
2002
50.8 mm (2.0 in)
2003
21.6 mm (0.9 in)
2004
76.2 mm (3.0 in)
2005
32.0 mm (1.3 in)
2006
21.1 mm (0.8 in)
2007
23.6 mm (0.9 in)
2008
22.4 mm (0.9 in)
2009
19.8 mm (0.8 in)
2010
18.5 mm (0.7 in)
2011
15.2 mm (0.6 in)
Wettest five days (Rx5day)
The wettest five days of the year at Grouse Creek, 1959 to 2011. The record is 101.6 mm (4.0 in) in 2002, marked on the chart; the median year is 33.8 mm (1.3 in).
Wettest five days (Rx5day) at Grouse Creek by year
Year
Wettest five days (Rx5day)
1959
31.0 mm (1.2 in)
1960
56.6 mm (2.2 in)
1961
41.6 mm (1.6 in)
1962
31.3 mm (1.2 in)
1963
49.3 mm (1.9 in)
1964
38.1 mm (1.5 in)
1965
47.5 mm (1.9 in)
1966
28.5 mm (1.1 in)
1967
33.6 mm (1.3 in)
1968
34.7 mm (1.4 in)
1969
33.8 mm (1.3 in)
1970
29.5 mm (1.2 in)
1971
44.4 mm (1.7 in)
1972
53.1 mm (2.1 in)
1973
29.5 mm (1.2 in)
1974
22.4 mm (0.9 in)
1975
35.3 mm (1.4 in)
1976
30.0 mm (1.2 in)
1977
38.6 mm (1.5 in)
1978
30.5 mm (1.2 in)
1979
29.3 mm (1.2 in)
1980
39.5 mm (1.6 in)
1981
27.9 mm (1.1 in)
1982
42.7 mm (1.7 in)
1983
37.9 mm (1.5 in)
1984
55.4 mm (2.2 in)
1985
33.0 mm (1.3 in)
1986
46.2 mm (1.8 in)
1987
33.3 mm (1.3 in)
1988
24.2 mm (1.0 in)
1989
17.6 mm (0.7 in)
1990
28.7 mm (1.1 in)
1991
33.1 mm (1.3 in)
1992
29.5 mm (1.2 in)
1993
34.3 mm (1.4 in)
1994
29.0 mm (1.1 in)
1995
48.0 mm (1.9 in)
1996
53.6 mm (2.1 in)
1997
43.7 mm (1.7 in)
1998
61.7 mm (2.4 in)
1999
34.8 mm (1.4 in)
2000
30.5 mm (1.2 in)
2001
50.8 mm (2.0 in)
2002
101.6 mm (4.0 in)
2003
28.0 mm (1.1 in)
2004
81.7 mm (3.2 in)
2005
41.7 mm (1.6 in)
2006
29.8 mm (1.2 in)
2007
27.4 mm (1.1 in)
2008
23.4 mm (0.9 in)
2009
49.6 mm (2.0 in)
2010
33.3 mm (1.3 in)
2011
31.2 mm (1.2 in)
Longest dry spell (CDD)
The longest dry spell of the year at Grouse Creek, 1959 to 2011. The record is 87 days in 1988, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Grouse Creek by year
Year
Longest dry spell (CDD)
1959
76 days
1960
34 days
1961
21 days
1962
35 days
1963
40 days
1964
28 days
1965
36 days
1966
39 days
1967
29 days
1968
35 days
1969
30 days
1970
29 days
1971
24 days
1972
52 days
1973
26 days
1974
56 days
1975
27 days
1976
45 days
1977
48 days
1978
55 days
1979
26 days
1980
45 days
1981
39 days
1982
23 days
1983
19 days
1984
21 days
1985
31 days
1986
38 days
1987
49 days
1988
87 days
1989
39 days
1990
30 days
1991
31 days
1992
32 days
1993
38 days
1994
54 days
1995
46 days
1996
34 days
1997
26 days
1998
26 days
1999
40 days
2000
42 days
2001
27 days
2002
34 days
2003
40 days
2004
29 days
2005
27 days
2006
26 days
2007
41 days
2008
38 days
2009
26 days
2010
40 days
2011
33 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
34 years with a frost
Across 34 years with a frost, the median last spring frost at Grouse Creek falls on 12 June and the median first autumn frost on 6 September, which leaves a median of 82 days between them.
Fitted over all years, the growing season changes by +3.9 days per decade at this station.
Frost dates and growing season at Grouse Creek
Measure
Median, all years
Earliest period
Recent period (1968 to 2010)
Recent against earliest
Fitted trend
Last spring frost
12 June
n/a
13 June
n/a
-2.1 days per decade
First autumn frost
6 September
n/a
6 September
n/a
+1.8 days per decade
Growing days
82 days
n/a
82 days
n/a
+3.9 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
44 years, 1960 to 2010
A day with at least 20.6 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 87.3 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at Grouse Creek: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
20.6 mm (0.8 in)
5 years
30.2 mm (1.2 in)
10 years
38.9 mm (1.5 in)
25 years
53.9 mm (2.1 in)
50 years
68.6 mm (2.7 in)
Longer than the 44 years of record
100 years
87.3 mm (3.4 in)
Longer than the 44 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, 44 years of values from 1960 to 2010.
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: 76.2 mm (3.0 in) in 2004; 54.6 mm (2.1 in) in 1960; 50.8 mm (2.0 in) in 2001.
Download the Data
Data for Grouse Creek standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Grouse Creek 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.