Record envelope, standing records and threshold days for Johnson Pass (USC00424362), Utah, United States, with 42 years of record.
Key Facts for Johnson Pass
Johnson Pass (USC00424362) is a weather station in Utah, United States at 40.34 latitude and -112.61 longitude, 1,701 m (5,580 ft) above sea level.
The station reports from 1972 to 2013, 42 years of record.
1,464 records set at Johnson Pass still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Johnson Pass set a daily record high minimum temperature of 20.0 C (68.0 F) on 24 July 2013.
About the Station
Location: Utah, United States, 40.34 latitude, -112.61 longitude.
Elevation: 1,701 m (5,580 ft).
Period of record: 1972 to 2013, 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 Johnson 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 Johnson Pass, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
16.7 C (62.1 F)
-24.4 C (-11.9 F)
n/a
n/a
Feb
19.4 C (66.9 F)
-25.6 C (-14.1 F)
n/a
n/a
Mar
25.6 C (78.1 F)
-16.7 C (1.9 F)
n/a
n/a
Apr
30.0 C (86.0 F)
-11.7 C (10.9 F)
n/a
n/a
May
37.2 C (99.0 F)
-7.2 C (19.0 F)
n/a
n/a
Jun
39.4 C (102.9 F)
-3.3 C (26.1 F)
n/a
n/a
Jul
41.7 C (107.1 F)
3.3 C (37.9 F)
n/a
n/a
Aug
40.0 C (104.0 F)
2.2 C (36.0 F)
n/a
n/a
Sep
36.7 C (98.1 F)
-5.0 C (23.0 F)
n/a
n/a
Oct
30.6 C (87.1 F)
-10.6 C (12.9 F)
n/a
n/a
Nov
23.3 C (73.9 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
18.9 C (66.0 F)
-28.3 C (-18.9 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Johnson Pass still stand. 1990 holds the most, with 65.
Standing records at Johnson Pass by the year they were set
Year set
Standing records
1972
16
1973
20
1974
20
1975
50
1976
24
1977
49
1978
48
1979
36
1980
38
1981
28
1982
43
1983
22
1984
38
1985
46
1986
47
1987
29
1988
36
1989
45
1990
65
1991
36
1992
32
1993
29
1994
34
1995
40
1996
46
1997
25
1998
43
1999
30
2000
32
2001
41
2002
34
2003
58
2004
35
2005
19
2006
35
2007
38
2008
36
2009
20
2010
27
2011
22
2012
24
2013
28
Wettest Day of Each Month
Apr: 46.0 mm (1.8 in)
The wettest day on record for each calendar month at Johnson Pass. The most was 46.0 mm (1.8 in) on 10 April 1974.
Record daily precipitation for each month at Johnson Pass
Month
Record daily precipitation (mm)
Date
Jan
31.2 mm (1.2 in)
15 January 2001
Feb
29.2 mm (1.1 in)
21 February 1979
Mar
26.7 mm (1.1 in)
25 March 1975
Apr
46.0 mm (1.8 in)
10 April 1974
May
43.9 mm (1.7 in)
30 May 2005
Jun
43.9 mm (1.7 in)
6 June 2007
Jul
43.9 mm (1.7 in)
21 July 1979
Aug
43.2 mm (1.7 in)
18 August 1983
Sep
37.6 mm (1.5 in)
8 September 1981
Oct
45.7 mm (1.8 in)
20 October 2004
Nov
30.5 mm (1.2 in)
12 November 1994
Dec
43.9 mm (1.7 in)
1 December 1982
Period of Record Coverage
1972 to 2013
Complete yearUnder 90 percent of days
42 years of record at Johnson Pass, 1972 to 2013. 8 years have data for under 90 percent of days and are left out of rankings: 1972, 1973, 1974, 1982, 2005, 2009, 2010, 2013.
Cooler than the station meanWarmer than the station mean
One stripe for each of 34 complete years at Johnson Pass, 1975 to 2012. Blue stripes are years cooler than the station's own mean of 10.0 C (50.0 F); red stripes are warmer. The coolest year was 1984, at 8.3 C (46.9 F), and the warmest was 2003, at 11.5 C (52.6 F). The strongest colour marks a difference of 1.8 C (3.2 F).
Annual mean temperature at Johnson Pass as warming stripes, 1975 to 2012
Year
Annual mean temperature
Difference from the station mean
1975
8.6 C
-1.42 C
1976
9.7 C
-0.28 C
1977
10.1 C
+0.10 C
1978
9.6 C
-0.38 C
1979
9.7 C
-0.25 C
1980
10.0 C
-0.04 C
1981
10.5 C
+0.48 C
1983
9.4 C
-0.62 C
1984
8.3 C
-1.71 C
1985
8.7 C
-1.26 C
1986
10.3 C
+0.33 C
1987
10.2 C
+0.20 C
1988
10.3 C
+0.32 C
1989
9.9 C
-0.14 C
1990
10.1 C
+0.13 C
1991
9.5 C
-0.45 C
1992
10.8 C
+0.84 C
1993
8.8 C
-1.24 C
1994
10.7 C
+0.68 C
1995
10.2 C
+0.17 C
1996
10.5 C
+0.50 C
1997
10.1 C
+0.09 C
1998
10.0 C
-0.03 C
1999
10.5 C
+0.46 C
2000
10.7 C
+0.72 C
2001
10.6 C
+0.65 C
2002
10.0 C
+0.05 C
2003
11.5 C
+1.48 C
2004
10.0 C
+0.03 C
2006
10.5 C
+0.49 C
2007
10.8 C
+0.82 C
2008
9.8 C
-0.18 C
2011
8.5 C
-1.51 C
2012
10.9 C
+0.95 C
The annual mean temperature here has risen by 0.26 C (0.02 to 0.49) per decade over 1975 to 2012. In Fahrenheit: 0.46 F (0.04 to 0.88) 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 Johnson Pass
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.26 C (0.02 to 0.49) per decade
0.46 F (0.04 to 0.88) per decade
1975 to 2012
34
Rise
Mean daily maximum
0.4 C (0.2 to 0.7) per decade
0.8 F (0.3 to 1.3) per decade
1975 to 2012
34
Rise
Mean daily minimum
0.1 C (-0.2 to 0.3) per decade
0.1 F (-0.3 to 0.5) per decade
1975 to 2012
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
1972 to 2013
Yearly extremes at Johnson Pass: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.7 C (107.1 F)
2002
37.8 C (100.0 F)
42
Coldest night (TNn)
-28.3 C (-18.9 F)
1990
-19.1 C (-2.5 F)
42
Wettest day (Rx1day)
46.0 mm (1.8 in)
1974
27.8 mm (1.1 in)
42
Wettest five days (Rx5day)
97.6 mm (3.8 in)
1982
47.7 mm (1.9 in)
42
Longest dry spell (CDD)
95 days
1978
35 days
42
Hottest day (TXx)
The hottest day of the year at Johnson Pass, 1972 to 2013. The record is 41.7 C (107.1 F) in 2002, marked on the chart; the median year is 37.8 C (100.0 F).
Hottest day (TXx) at Johnson Pass by year
Year
Hottest day (TXx)
1972
15.6 C (60.1 F)
1973
37.8 C (100.0 F)
1974
36.7 C (98.1 F)
1975
35.6 C (96.1 F)
1976
37.2 C (99.0 F)
1977
36.1 C (97.0 F)
1978
36.1 C (97.0 F)
1979
36.7 C (98.1 F)
1980
36.7 C (98.1 F)
1981
37.2 C (99.0 F)
1982
36.7 C (98.1 F)
1983
36.7 C (98.1 F)
1984
37.2 C (99.0 F)
1985
37.8 C (100.0 F)
1986
36.7 C (98.1 F)
1987
36.1 C (97.0 F)
1988
37.8 C (100.0 F)
1989
38.3 C (100.9 F)
1990
38.3 C (100.9 F)
1991
38.3 C (100.9 F)
1992
37.8 C (100.0 F)
1993
35.0 C (95.0 F)
1994
38.3 C (100.9 F)
1995
37.8 C (100.0 F)
1996
37.8 C (100.0 F)
1997
37.8 C (100.0 F)
1998
40.6 C (105.1 F)
1999
37.8 C (100.0 F)
2000
40.0 C (104.0 F)
2001
40.0 C (104.0 F)
2002
41.7 C (107.1 F)
2003
40.0 C (104.0 F)
2004
36.7 C (98.1 F)
2005
36.7 C (98.1 F)
2006
40.6 C (105.1 F)
2007
39.4 C (102.9 F)
2008
38.3 C (100.9 F)
2009
38.9 C (102.0 F)
2010
38.9 C (102.0 F)
2011
35.6 C (96.1 F)
2012
36.1 C (97.0 F)
2013
39.4 C (102.9 F)
Coldest night (TNn)
The coldest night of the year at Johnson Pass, 1972 to 2013. The record is -28.3 C (-18.9 F) in 1990, marked on the chart; the median year is -19.1 C (-2.5 F).
Coldest night (TNn) at Johnson Pass by year
Year
Coldest night (TNn)
1972
-26.1 C (-15.0 F)
1973
-13.9 C (7.0 F)
1974
-21.7 C (-7.1 F)
1975
-17.2 C (1.0 F)
1976
-18.9 C (-2.0 F)
1977
-20.0 C (-4.0 F)
1978
-21.7 C (-7.1 F)
1979
-24.4 C (-11.9 F)
1980
-19.4 C (-2.9 F)
1981
-12.8 C (9.0 F)
1982
-23.9 C (-11.0 F)
1983
-18.9 C (-2.0 F)
1984
-22.8 C (-9.0 F)
1985
-23.3 C (-9.9 F)
1986
-16.1 C (3.0 F)
1987
-20.0 C (-4.0 F)
1988
-20.0 C (-4.0 F)
1989
-25.6 C (-14.1 F)
1990
-28.3 C (-18.9 F)
1991
-18.9 C (-2.0 F)
1992
-16.1 C (3.0 F)
1993
-18.3 C (-0.9 F)
1994
-16.1 C (3.0 F)
1995
-18.3 C (-0.9 F)
1996
-18.3 C (-0.9 F)
1997
-15.0 C (5.0 F)
1998
-23.3 C (-9.9 F)
1999
-16.1 C (3.0 F)
2000
-14.4 C (6.1 F)
2001
-20.6 C (-5.1 F)
2002
-20.6 C (-5.1 F)
2003
-15.6 C (3.9 F)
2004
-17.8 C (0.0 F)
2005
-16.1 C (3.0 F)
2006
-17.2 C (1.0 F)
2007
-21.1 C (-6.0 F)
2008
-18.3 C (-0.9 F)
2009
-20.6 C (-5.1 F)
2010
-19.4 C (-2.9 F)
2011
-20.0 C (-4.0 F)
2012
-16.1 C (3.0 F)
2013
-23.3 C (-9.9 F)
Wettest day (Rx1day)
The wettest day of the year at Johnson Pass, 1972 to 2013. The record is 46.0 mm (1.8 in) in 1974, marked on the chart; the median year is 27.8 mm (1.1 in).
Wettest day (Rx1day) at Johnson Pass by year
Year
Wettest day (Rx1day)
1972
14.7 mm (0.6 in)
1973
22.9 mm (0.9 in)
1974
46.0 mm (1.8 in)
1975
26.7 mm (1.1 in)
1976
40.9 mm (1.6 in)
1977
23.1 mm (0.9 in)
1978
27.2 mm (1.1 in)
1979
43.9 mm (1.7 in)
1980
26.9 mm (1.1 in)
1981
37.6 mm (1.5 in)
1982
43.9 mm (1.7 in)
1983
43.2 mm (1.7 in)
1984
29.2 mm (1.1 in)
1985
33.0 mm (1.3 in)
1986
38.6 mm (1.5 in)
1987
28.4 mm (1.1 in)
1988
18.0 mm (0.7 in)
1989
25.4 mm (1.0 in)
1990
25.9 mm (1.0 in)
1991
27.9 mm (1.1 in)
1992
22.4 mm (0.9 in)
1993
24.4 mm (1.0 in)
1994
30.5 mm (1.2 in)
1995
27.4 mm (1.1 in)
1996
30.7 mm (1.2 in)
1997
27.7 mm (1.1 in)
1998
38.9 mm (1.5 in)
1999
26.7 mm (1.1 in)
2000
29.7 mm (1.2 in)
2001
31.2 mm (1.2 in)
2002
21.1 mm (0.8 in)
2003
26.4 mm (1.0 in)
2004
45.7 mm (1.8 in)
2005
43.9 mm (1.7 in)
2006
31.0 mm (1.2 in)
2007
43.9 mm (1.7 in)
2008
15.7 mm (0.6 in)
2009
23.1 mm (0.9 in)
2010
30.0 mm (1.2 in)
2011
23.6 mm (0.9 in)
2012
25.9 mm (1.0 in)
2013
26.2 mm (1.0 in)
Wettest five days (Rx5day)
The wettest five days of the year at Johnson Pass, 1972 to 2013. The record is 97.6 mm (3.8 in) in 1982, marked on the chart; the median year is 47.7 mm (1.9 in).
Wettest five days (Rx5day) at Johnson Pass by year
Year
Wettest five days (Rx5day)
1972
21.5 mm (0.8 in)
1973
44.2 mm (1.7 in)
1974
50.3 mm (2.0 in)
1975
48.7 mm (1.9 in)
1976
43.2 mm (1.7 in)
1977
86.3 mm (3.4 in)
1978
75.5 mm (3.0 in)
1979
47.5 mm (1.9 in)
1980
67.0 mm (2.6 in)
1981
56.6 mm (2.2 in)
1982
97.6 mm (3.8 in)
1983
64.8 mm (2.6 in)
1984
51.6 mm (2.0 in)
1985
38.1 mm (1.5 in)
1986
52.4 mm (2.1 in)
1987
35.3 mm (1.4 in)
1988
26.2 mm (1.0 in)
1989
33.4 mm (1.3 in)
1990
30.2 mm (1.2 in)
1991
42.9 mm (1.7 in)
1992
40.5 mm (1.6 in)
1993
48.2 mm (1.9 in)
1994
46.5 mm (1.8 in)
1995
38.6 mm (1.5 in)
1996
65.3 mm (2.6 in)
1997
59.0 mm (2.3 in)
1998
73.8 mm (2.9 in)
1999
74.9 mm (2.9 in)
2000
47.8 mm (1.9 in)
2001
51.1 mm (2.0 in)
2002
28.7 mm (1.1 in)
2003
54.6 mm (2.1 in)
2004
61.4 mm (2.4 in)
2005
68.2 mm (2.7 in)
2006
39.6 mm (1.6 in)
2007
46.7 mm (1.8 in)
2008
25.4 mm (1.0 in)
2009
31.3 mm (1.2 in)
2010
66.3 mm (2.6 in)
2011
41.9 mm (1.6 in)
2012
41.1 mm (1.6 in)
2013
31.8 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Johnson Pass, 1972 to 2013. The record is 95 days in 1978, marked on the chart; the median year is 35 days.
Longest dry spell (CDD) at Johnson Pass by year
Year
Longest dry spell (CDD)
1972
9 days
1973
14 days
1974
71 days
1975
23 days
1976
41 days
1977
28 days
1978
95 days
1979
59 days
1980
42 days
1981
29 days
1982
18 days
1983
23 days
1984
28 days
1985
35 days
1986
39 days
1987
34 days
1988
43 days
1989
35 days
1990
37 days
1991
35 days
1992
31 days
1993
36 days
1994
55 days
1995
24 days
1996
41 days
1997
26 days
1998
22 days
1999
58 days
2000
29 days
2001
47 days
2002
41 days
2003
32 days
2004
26 days
2005
35 days
2006
39 days
2007
50 days
2008
49 days
2009
29 days
2010
37 days
2011
18 days
2012
27 days
2013
36 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 Johnson Pass falls on 24 May and the median first autumn frost on 1 October, which leaves a median of 126 days between them.
Fitted over all years, the growing season changes by -0.3 days per decade at this station.
Frost dates and growing season at Johnson Pass
Measure
Median, all years
Earliest period
Recent period (1979 to 2012)
Recent against earliest
Fitted trend
Last spring frost
24 May
n/a
23 May
n/a
-2.3 days per decade
First autumn frost
1 October
n/a
1 October
n/a
-2.5 days per decade
Growing days
126 days
n/a
127 days
n/a
-0.3 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
35 years, 1974 to 2010
A day with at least 30.1 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 55.1 mm (2.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Johnson Pass: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
30.1 mm (1.2 in)
5 years
37.5 mm (1.5 in)
10 years
42.1 mm (1.7 in)
25 years
47.6 mm (1.9 in)
50 years
51.5 mm (2.0 in)
Longer than the 35 years of record
100 years
55.1 mm (2.2 in)
Longer than the 35 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, 35 years of values from 1974 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: 46.0 mm (1.8 in) in 1974; 45.7 mm (1.8 in) in 2004; 43.9 mm (1.7 in) in 1979.
Download the Data
Data for Johnson Pass standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Johnson 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.