Record envelope, standing records and threshold days for La Junta 20 S (USC00054726), Colorado, United States, with 43 years of record.
Key Facts for La Junta 20 S
La Junta 20 S (USC00054726) is a weather station in Colorado, United States at 37.75 latitude and -103.48 longitude, 1,283 m (4,210 ft) above sea level.
The station reports from 1982 to 2024, 43 years of record.
1,464 records set at La Junta 20 S still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
La Junta 20 S tied a daily record high maximum temperature of 34.4 C (93.9 F) on 6 October 2024.
About the Station
Location: Colorado, United States, 37.75 latitude, -103.48 longitude.
Elevation: 1,283 m (4,210 ft).
Period of record: 1982 to 2024, 43 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 La Junta 20 S. 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 La Junta 20 S, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
26.1 C (79.0 F)
-26.7 C (-16.1 F)
n/a
n/a
Feb
28.3 C (82.9 F)
-30.0 C (-22.0 F)
n/a
n/a
Mar
31.7 C (89.1 F)
-21.7 C (-7.1 F)
n/a
n/a
Apr
35.0 C (95.0 F)
-11.1 C (12.0 F)
n/a
n/a
May
41.7 C (107.1 F)
-6.7 C (19.9 F)
n/a
n/a
Jun
42.8 C (109.0 F)
2.8 C (37.0 F)
n/a
n/a
Jul
42.2 C (108.0 F)
5.0 C (41.0 F)
n/a
n/a
Aug
42.2 C (108.0 F)
6.7 C (44.1 F)
n/a
n/a
Sep
40.6 C (105.1 F)
-3.9 C (25.0 F)
n/a
n/a
Oct
35.0 C (95.0 F)
-17.2 C (1.0 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Dec
26.1 C (79.0 F)
-28.9 C (-20.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at La Junta 20 S still stand. 1995 holds the most, with 60.
Standing records at La Junta 20 S by the year they were set
Year set
Standing records
1982
7
1983
57
1984
35
1985
47
1986
58
1987
49
1988
43
1989
58
1990
55
1991
31
1992
41
1993
42
1994
33
1995
60
1996
54
1997
45
1998
34
1999
31
2000
34
2001
21
2002
36
2003
45
2004
40
2005
24
2006
27
2007
22
2008
28
2009
27
2010
19
2011
28
2012
16
2013
35
2014
35
2015
26
2016
25
2017
22
2018
21
2019
24
2020
24
2021
39
2022
41
2023
14
2024
11
All-Time Record Progression
2 new records
2 all-time records were set at La Junta 20 S between 15 February 2021 and 21 July 2023. Each dot is a new record.
When La Junta 20 S set new all-time records
Date
Kind
Detail
2021-02-15
Record low minimum temperature
Record low minimum temperature -30.0 C (-22.0 F)
2023-07-21
Record daily precipitation
Record daily precipitation 89.7 mm (3.5 in)
Wettest Day of Each Month
Jul: 89.7 mm (3.5 in)
The wettest day on record for each calendar month at La Junta 20 S. The most was 89.7 mm (3.5 in) on 21 July 2023.
Record daily precipitation for each month at La Junta 20 S
Month
Record daily precipitation (mm)
Date
Jan
22.9 mm (0.9 in)
12 January 2019
Feb
24.1 mm (0.9 in)
11 February 1993
Mar
40.9 mm (1.6 in)
28 March 1987
Apr
41.1 mm (1.6 in)
22 April 1983
May
54.6 mm (2.1 in)
18 May 2021
Jun
60.5 mm (2.4 in)
14 June 2007
Jul
89.7 mm (3.5 in)
21 July 2023
Aug
48.5 mm (1.9 in)
29 August 2020
Sep
38.1 mm (1.5 in)
24 September 2017
Oct
63.5 mm (2.5 in)
27 October 2006
Nov
28.2 mm (1.1 in)
3 November 1990
Dec
38.1 mm (1.5 in)
30 December 2006
Period of Record Coverage
1982 to 2024
Complete yearUnder 90 percent of days
43 years of record at La Junta 20 S, 1982 to 2024. 6 years have data for under 90 percent of days and are left out of rankings: 1982, 2005, 2006, 2009, 2013, 2024.
Cooler than the station meanWarmer than the station mean
One stripe for each of 35 complete years at La Junta 20 S, 1983 to 2023. Blue stripes are years cooler than the station's own mean of 12.7 C (54.9 F); red stripes are warmer. The coolest year was 1993, at 11.7 C (53.0 F), and the warmest was 2012, at 13.9 C (56.9 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at La Junta 20 S as warming stripes, 1983 to 2023
Year
Annual mean temperature
Difference from the station mean
1983
12.0 C
-0.72 C
1984
12.2 C
-0.50 C
1985
11.9 C
-0.81 C
1986
13.6 C
+0.86 C
1987
12.6 C
-0.16 C
1988
12.5 C
-0.21 C
1989
12.6 C
-0.11 C
1990
12.8 C
+0.09 C
1991
12.8 C
+0.10 C
1992
12.4 C
-0.30 C
1993
11.7 C
-1.07 C
1994
13.4 C
+0.70 C
1995
12.7 C
+0.01 C
1996
13.0 C
+0.24 C
1997
12.5 C
-0.27 C
1998
13.3 C
+0.58 C
1999
13.5 C
+0.78 C
2000
13.8 C
+1.11 C
2002
12.9 C
+0.22 C
2003
13.4 C
+0.70 C
2004
12.5 C
-0.26 C
2007
11.7 C
-1.02 C
2008
12.2 C
-0.55 C
2011
12.1 C
-0.58 C
2012
13.9 C
+1.14 C
2014
12.0 C
-0.71 C
2015
13.0 C
+0.32 C
2016
13.2 C
+0.47 C
2017
12.7 C
-0.01 C
2018
12.4 C
-0.33 C
2019
12.0 C
-0.69 C
2020
13.4 C
+0.66 C
2021
13.1 C
+0.38 C
2022
12.7 C
-0.06 C
2023
12.6 C
-0.14 C
The fitted trend in annual mean temperature here over 1983 to 2023 is 0.05 C (-0.12 to 0.21) 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 35 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at La Junta 20 S
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.05 C (-0.12 to 0.21) per decade
0.1 F (-0.2 to 0.4) per decade
1983 to 2023
35
Not clearly different from zero
Mean daily maximum
-0.01 C (-0.24 to 0.22) per decade
-0.02 F (-0.44 to 0.39) per decade
1983 to 2023
35
Not clearly different from zero
Mean daily minimum
0.1 C (0.0 to 0.3) per decade
0.2 F (-0.1 to 0.5) per decade
1983 to 2023
35
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
1982 to 2024
Yearly extremes at La Junta 20 S: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.8 C (109.0 F)
1990
40.6 C (105.1 F)
43
Coldest night (TNn)
-30.0 C (-22.0 F)
2021
-21.1 C (-6.0 F)
43
Wettest day (Rx1day)
89.7 mm (3.5 in)
2023
38.6 mm (1.5 in)
43
Wettest five days (Rx5day)
108.5 mm (4.3 in)
2023
54.4 mm (2.1 in)
43
Longest dry spell (CDD)
84 days
2023
40 days
43
Hottest day (TXx)
The hottest day of the year at La Junta 20 S, 1982 to 2024. The record is 42.8 C (109.0 F) in 1990, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at La Junta 20 S by year
Year
Hottest day (TXx)
1982
38.3 C (100.9 F)
1983
39.4 C (102.9 F)
1984
40.0 C (104.0 F)
1985
41.1 C (106.0 F)
1986
40.0 C (104.0 F)
1987
41.1 C (106.0 F)
1988
40.6 C (105.1 F)
1989
40.6 C (105.1 F)
1990
42.8 C (109.0 F)
1991
40.6 C (105.1 F)
1992
40.0 C (104.0 F)
1993
41.7 C (107.1 F)
1994
42.8 C (109.0 F)
1995
42.2 C (108.0 F)
1996
41.1 C (106.0 F)
1997
41.7 C (107.1 F)
1998
41.7 C (107.1 F)
1999
41.1 C (106.0 F)
2000
41.7 C (107.1 F)
2001
40.0 C (104.0 F)
2002
41.1 C (106.0 F)
2003
41.7 C (107.1 F)
2004
40.0 C (104.0 F)
2005
41.1 C (106.0 F)
2006
40.0 C (104.0 F)
2007
39.4 C (102.9 F)
2008
40.6 C (105.1 F)
2009
37.2 C (99.0 F)
2010
39.4 C (102.9 F)
2011
40.6 C (105.1 F)
2012
42.8 C (109.0 F)
2013
41.1 C (106.0 F)
2014
38.9 C (102.0 F)
2015
38.9 C (102.0 F)
2016
39.4 C (102.9 F)
2017
38.3 C (100.9 F)
2018
41.1 C (106.0 F)
2019
42.2 C (108.0 F)
2020
39.4 C (102.9 F)
2021
41.1 C (106.0 F)
2022
41.1 C (106.0 F)
2023
38.9 C (102.0 F)
2024
40.6 C (105.1 F)
Coldest night (TNn)
The coldest night of the year at La Junta 20 S, 1982 to 2024. The record is -30.0 C (-22.0 F) in 2021, marked on the chart; the median year is -21.1 C (-6.0 F).
Coldest night (TNn) at La Junta 20 S by year
Year
Coldest night (TNn)
1982
-20.0 C (-4.0 F)
1983
-28.9 C (-20.0 F)
1984
-26.7 C (-16.1 F)
1985
-23.9 C (-11.0 F)
1986
-21.7 C (-7.1 F)
1987
-23.3 C (-9.9 F)
1988
-25.6 C (-14.1 F)
1989
-27.2 C (-17.0 F)
1990
-26.1 C (-15.0 F)
1991
-17.8 C (0.0 F)
1992
-17.8 C (0.0 F)
1993
-21.1 C (-6.0 F)
1994
-18.3 C (-0.9 F)
1995
-19.4 C (-2.9 F)
1996
-28.9 C (-20.0 F)
1997
-20.6 C (-5.1 F)
1998
-22.2 C (-8.0 F)
1999
-15.0 C (5.0 F)
2000
-15.6 C (3.9 F)
2001
-17.8 C (0.0 F)
2002
-18.9 C (-2.0 F)
2003
-21.1 C (-6.0 F)
2004
-25.0 C (-13.0 F)
2005
-22.2 C (-8.0 F)
2006
-19.4 C (-2.9 F)
2007
-26.1 C (-15.0 F)
2008
-21.1 C (-6.0 F)
2009
-25.0 C (-13.0 F)
2010
-22.2 C (-8.0 F)
2011
-27.2 C (-17.0 F)
2012
-18.3 C (-0.9 F)
2013
-18.9 C (-2.0 F)
2014
-23.3 C (-9.9 F)
2015
-20.6 C (-5.1 F)
2016
-26.7 C (-16.1 F)
2017
-23.9 C (-11.0 F)
2018
-20.0 C (-4.0 F)
2019
-19.4 C (-2.9 F)
2020
-16.7 C (1.9 F)
2021
-30.0 C (-22.0 F)
2022
-23.9 C (-11.0 F)
2023
-18.9 C (-2.0 F)
2024
-20.6 C (-5.1 F)
Wettest day (Rx1day)
The wettest day of the year at La Junta 20 S, 1982 to 2024. The record is 89.7 mm (3.5 in) in 2023, marked on the chart; the median year is 38.6 mm (1.5 in).
Wettest day (Rx1day) at La Junta 20 S by year
Year
Wettest day (Rx1day)
1982
26.7 mm (1.1 in)
1983
41.1 mm (1.6 in)
1984
33.5 mm (1.3 in)
1985
30.2 mm (1.2 in)
1986
50.8 mm (2.0 in)
1987
40.9 mm (1.6 in)
1988
29.0 mm (1.1 in)
1989
27.7 mm (1.1 in)
1990
49.3 mm (1.9 in)
1991
30.0 mm (1.2 in)
1992
41.9 mm (1.6 in)
1993
24.1 mm (0.9 in)
1994
30.0 mm (1.2 in)
1995
47.5 mm (1.9 in)
1996
73.4 mm (2.9 in)
1997
47.0 mm (1.9 in)
1998
30.2 mm (1.2 in)
1999
52.1 mm (2.1 in)
2000
41.1 mm (1.6 in)
2001
28.4 mm (1.1 in)
2002
24.6 mm (1.0 in)
2003
22.9 mm (0.9 in)
2004
42.7 mm (1.7 in)
2005
37.6 mm (1.5 in)
2006
63.5 mm (2.5 in)
2007
60.5 mm (2.4 in)
2008
38.6 mm (1.5 in)
2009
50.8 mm (2.0 in)
2010
25.4 mm (1.0 in)
2011
31.7 mm (1.2 in)
2012
37.3 mm (1.5 in)
2013
34.8 mm (1.4 in)
2014
27.9 mm (1.1 in)
2015
38.6 mm (1.5 in)
2016
46.2 mm (1.8 in)
2017
45.7 mm (1.8 in)
2018
35.6 mm (1.4 in)
2019
24.9 mm (1.0 in)
2020
48.5 mm (1.9 in)
2021
54.6 mm (2.1 in)
2022
48.3 mm (1.9 in)
2023
89.7 mm (3.5 in)
2024
27.4 mm (1.1 in)
Wettest five days (Rx5day)
The wettest five days of the year at La Junta 20 S, 1982 to 2024. The record is 108.5 mm (4.3 in) in 2023, marked on the chart; the median year is 54.4 mm (2.1 in).
Wettest five days (Rx5day) at La Junta 20 S by year
Year
Wettest five days (Rx5day)
1982
39.4 mm (1.6 in)
1983
46.9 mm (1.8 in)
1984
45.7 mm (1.8 in)
1985
50.0 mm (2.0 in)
1986
60.0 mm (2.4 in)
1987
50.1 mm (2.0 in)
1988
62.1 mm (2.4 in)
1989
44.8 mm (1.8 in)
1990
77.2 mm (3.0 in)
1991
48.0 mm (1.9 in)
1992
69.1 mm (2.7 in)
1993
30.7 mm (1.2 in)
1994
49.3 mm (1.9 in)
1995
58.6 mm (2.3 in)
1996
96.0 mm (3.8 in)
1997
75.1 mm (3.0 in)
1998
60.7 mm (2.4 in)
1999
82.4 mm (3.2 in)
2000
46.9 mm (1.8 in)
2001
53.8 mm (2.1 in)
2002
33.2 mm (1.3 in)
2003
44.7 mm (1.8 in)
2004
66.9 mm (2.6 in)
2005
58.2 mm (2.3 in)
2006
81.3 mm (3.2 in)
2007
81.3 mm (3.2 in)
2008
58.9 mm (2.3 in)
2009
67.3 mm (2.6 in)
2010
42.6 mm (1.7 in)
2011
40.6 mm (1.6 in)
2012
37.3 mm (1.5 in)
2013
55.9 mm (2.2 in)
2014
70.1 mm (2.8 in)
2015
55.1 mm (2.2 in)
2016
50.0 mm (2.0 in)
2017
92.0 mm (3.6 in)
2018
52.7 mm (2.1 in)
2019
34.6 mm (1.4 in)
2020
50.3 mm (2.0 in)
2021
70.8 mm (2.8 in)
2022
54.4 mm (2.1 in)
2023
108.5 mm (4.3 in)
2024
44.7 mm (1.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at La Junta 20 S, 1982 to 2024. The record is 84 days in 2023, marked on the chart; the median year is 40 days.
Longest dry spell (CDD) at La Junta 20 S by year
Year
Longest dry spell (CDD)
1982
43 days
1983
43 days
1984
32 days
1985
24 days
1986
31 days
1987
47 days
1988
52 days
1989
54 days
1990
43 days
1991
50 days
1992
28 days
1993
47 days
1994
39 days
1995
33 days
1996
47 days
1997
33 days
1998
31 days
1999
34 days
2000
57 days
2001
33 days
2002
33 days
2003
31 days
2004
32 days
2005
35 days
2006
47 days
2007
50 days
2008
49 days
2009
39 days
2010
47 days
2011
39 days
2012
57 days
2013
40 days
2014
32 days
2015
26 days
2016
81 days
2017
38 days
2018
36 days
2019
53 days
2020
45 days
2021
56 days
2022
62 days
2023
84 days
2024
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
35 years with a frost
Across 35 years with a frost, the median last spring frost at La Junta 20 S falls on 29 April and the median first autumn frost on 12 October, which leaves a median of 169 days between them.
Fitted over all years, the growing season changes by +5.8 days per decade at this station.
Frost dates and growing season at La Junta 20 S
Measure
Median, all years
Earliest period
Recent period (1988 to 2023)
Recent against earliest
Fitted trend
Last spring frost
29 April
n/a
28 April
n/a
-2.0 days per decade
First autumn frost
12 October
n/a
14 October
n/a
+3.8 days per decade
Growing days
169 days
n/a
170 days
n/a
+5.8 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
40 years, 1983 to 2023
A day with at least 37.7 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 86.3 mm (3.4 in) of rain is expected about once in 100 years.
Rainfall return levels at La Junta 20 S: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
37.7 mm (1.5 in)
5 years
49.7 mm (2.0 in)
10 years
58.0 mm (2.3 in)
25 years
69.0 mm (2.7 in)
50 years
77.5 mm (3.1 in)
Longer than the 40 years of record
100 years
86.3 mm (3.4 in)
Longer than the 40 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, 40 years of values from 1983 to 2023.
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: 89.7 mm (3.5 in) in 2023; 73.4 mm (2.9 in) in 1996; 60.5 mm (2.4 in) in 2007.
Download the Data
Data for La Junta 20 S standing records by year: CSV or JSON. Field meanings are on the data page.
Data for La Junta 20 S 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.