Record envelope, standing records and threshold days for Ordway 21 N (USC00056136), Colorado, United States, with 36 years of record.
Key Facts for Ordway 21 N
Ordway 21 N (USC00056136) is a weather station in Colorado, United States at 38.53 latitude and -103.71 longitude, 1,453 m (4,767 ft) above sea level.
The station reports from 1980 to 2015, 36 years of record.
1,464 records set at Ordway 21 N still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Ordway 21 N set a daily record low maximum temperature of 23.9 C (75.0 F) on 8 July 2015.
About the Station
Location: Colorado, United States, 38.53 latitude, -103.71 longitude.
Elevation: 1,453 m (4,767 ft).
Period of record: 1980 to 2015, 36 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 Ordway 21 N. 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 Ordway 21 N, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
24.4 C (75.9 F)
-34.4 C (-29.9 F)
n/a
n/a
Feb
25.6 C (78.1 F)
-32.8 C (-27.0 F)
n/a
n/a
Mar
30.6 C (87.1 F)
-20.0 C (-4.0 F)
n/a
n/a
Apr
32.8 C (91.0 F)
-13.9 C (7.0 F)
n/a
n/a
May
37.8 C (100.0 F)
-6.1 C (21.0 F)
n/a
n/a
Jun
42.2 C (108.0 F)
-0.6 C (30.9 F)
n/a
n/a
Jul
42.2 C (108.0 F)
5.6 C (42.1 F)
n/a
n/a
Aug
40.6 C (105.1 F)
5.0 C (41.0 F)
n/a
n/a
Sep
39.4 C (102.9 F)
-8.3 C (17.1 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-14.4 C (6.1 F)
n/a
n/a
Nov
31.1 C (88.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Dec
24.4 C (75.9 F)
-33.9 C (-29.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Ordway 21 N still stand. 1990 holds the most, with 71.
Standing records at Ordway 21 N by the year they were set
Year set
Standing records
1980
24
1981
51
1982
39
1983
49
1984
37
1985
56
1986
46
1987
56
1988
50
1989
61
1990
71
1991
46
1992
33
1993
44
1994
28
1995
69
1996
58
1997
39
1998
33
1999
21
2000
30
2001
33
2002
37
2003
41
2004
36
2005
30
2006
52
2007
24
2008
31
2009
43
2010
24
2011
31
2012
33
2013
44
2014
33
2015
31
Wettest Day of Each Month
Aug: 81.0 mm (3.2 in)
The wettest day on record for each calendar month at Ordway 21 N. The most was 81.0 mm (3.2 in) on 18 August 2004.
Record daily precipitation for each month at Ordway 21 N
Month
Record daily precipitation (mm)
Date
Jan
16.5 mm (0.6 in)
7 January 1988
Feb
23.9 mm (0.9 in)
15 February 1987
Mar
24.4 mm (1.0 in)
31 March 2000
Apr
43.2 mm (1.7 in)
21 April 1984
May
55.9 mm (2.2 in)
26 May 1996
Jun
54.4 mm (2.1 in)
13 June 1999
Jul
59.9 mm (2.4 in)
31 July 2010
Aug
81.0 mm (3.2 in)
18 August 2004
Sep
38.4 mm (1.5 in)
29 September 1990
Oct
25.9 mm (1.0 in)
5 October 1984
Nov
26.4 mm (1.0 in)
14 November 1993
Dec
25.4 mm (1.0 in)
22 December 1981
Period of Record Coverage
1980 to 2015
Complete yearUnder 90 percent of days
36 years of record at Ordway 21 N, 1980 to 2015. 2 years have data for under 90 percent of days and are left out of rankings: 1980, 2015.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Ordway 21 N, 1981 to 2014. Blue stripes are years cooler than the station's own mean of 10.6 C (51.1 F); red stripes are warmer. The coolest year was 1995, at 9.4 C (48.9 F), and the warmest was 2012, at 12.1 C (53.8 F). The strongest colour marks a difference of 1.5 C (2.7 F).
Annual mean temperature at Ordway 21 N as warming stripes, 1981 to 2014
Year
Annual mean temperature
Difference from the station mean
1981
11.3 C
+0.64 C
1982
9.6 C
-1.06 C
1983
9.7 C
-0.88 C
1984
9.9 C
-0.72 C
1985
9.4 C
-1.18 C
1986
11.6 C
+0.94 C
1987
11.0 C
+0.38 C
1988
10.1 C
-0.50 C
1989
10.5 C
-0.14 C
1990
10.5 C
-0.08 C
1991
10.7 C
+0.04 C
1992
10.5 C
-0.09 C
1993
9.6 C
-1.07 C
1994
10.0 C
-0.66 C
1995
9.4 C
-1.21 C
1996
10.7 C
+0.06 C
1997
10.1 C
-0.53 C
1998
11.2 C
+0.58 C
1999
11.2 C
+0.54 C
2000
11.4 C
+0.76 C
2002
11.0 C
+0.39 C
2003
11.6 C
+1.02 C
2004
10.8 C
+0.19 C
2005
11.4 C
+0.79 C
2006
11.3 C
+0.67 C
2007
10.5 C
-0.10 C
2008
10.4 C
-0.25 C
2009
10.3 C
-0.30 C
2010
11.2 C
+0.57 C
2011
10.6 C
-0.04 C
2012
12.1 C
+1.50 C
2013
10.7 C
+0.05 C
2014
10.3 C
-0.28 C
The annual mean temperature here has risen by 0.26 C (0.03 to 0.50) per decade over 1981 to 2014. In Fahrenheit: 0.5 F (0.1 to 0.9) per decade. The slope is a straight line fitted to 33 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Ordway 21 N
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.26 C (0.03 to 0.50) per decade
0.5 F (0.1 to 0.9) per decade
1981 to 2014
33
Rise
Mean daily maximum
0.4 C (0.1 to 0.7) per decade
0.7 F (0.1 to 1.2) per decade
1981 to 2014
33
Rise
Mean daily minimum
0.2 C (-0.1 to 0.4) per decade
0.3 F (-0.1 to 0.7) per decade
1981 to 2014
33
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
1980 to 2015
Yearly extremes at Ordway 21 N: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
42.2 C (108.0 F)
1990
39.7 C (103.5 F)
36
Coldest night (TNn)
-34.4 C (-29.9 F)
1984
-23.3 C (-9.9 F)
36
Wettest day (Rx1day)
81.0 mm (3.2 in)
2004
34.4 mm (1.4 in)
36
Wettest five days (Rx5day)
106.2 mm (4.2 in)
1999
43.9 mm (1.7 in)
36
Longest dry spell (CDD)
98 days
2010
46 days
36
Hottest day (TXx)
The hottest day of the year at Ordway 21 N, 1980 to 2015. The record is 42.2 C (108.0 F) in 1990, marked on the chart; the median year is 39.7 C (103.5 F).
Hottest day (TXx) at Ordway 21 N by year
Year
Hottest day (TXx)
1980
40.0 C (104.0 F)
1981
40.0 C (104.0 F)
1982
38.3 C (100.9 F)
1983
38.3 C (100.9 F)
1984
37.2 C (99.0 F)
1985
39.4 C (102.9 F)
1986
40.0 C (104.0 F)
1987
39.4 C (102.9 F)
1988
41.7 C (107.1 F)
1989
40.6 C (105.1 F)
1990
42.2 C (108.0 F)
1991
38.9 C (102.0 F)
1992
38.9 C (102.0 F)
1993
38.9 C (102.0 F)
1994
40.0 C (104.0 F)
1995
40.6 C (105.1 F)
1996
39.4 C (102.9 F)
1997
39.4 C (102.9 F)
1998
41.1 C (106.0 F)
1999
37.8 C (100.0 F)
2000
40.0 C (104.0 F)
2001
40.6 C (105.1 F)
2002
40.0 C (104.0 F)
2003
41.1 C (106.0 F)
2004
39.4 C (102.9 F)
2005
42.2 C (108.0 F)
2006
39.4 C (102.9 F)
2007
38.9 C (102.0 F)
2008
40.6 C (105.1 F)
2009
38.9 C (102.0 F)
2010
40.6 C (105.1 F)
2011
39.4 C (102.9 F)
2012
41.1 C (106.0 F)
2013
40.0 C (104.0 F)
2014
38.9 C (102.0 F)
2015
36.1 C (97.0 F)
Coldest night (TNn)
The coldest night of the year at Ordway 21 N, 1980 to 2015. The record is -34.4 C (-29.9 F) in 1984, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Ordway 21 N by year
Year
Coldest night (TNn)
1980
-15.6 C (3.9 F)
1981
-30.0 C (-22.0 F)
1982
-30.0 C (-22.0 F)
1983
-28.9 C (-20.0 F)
1984
-34.4 C (-29.9 F)
1985
-27.2 C (-17.0 F)
1986
-22.8 C (-9.0 F)
1987
-25.0 C (-13.0 F)
1988
-28.9 C (-20.0 F)
1989
-29.4 C (-20.9 F)
1990
-33.9 C (-29.0 F)
1991
-24.4 C (-11.9 F)
1992
-19.4 C (-2.9 F)
1993
-25.6 C (-14.1 F)
1994
-20.6 C (-5.1 F)
1995
-23.3 C (-9.9 F)
1996
-32.8 C (-27.0 F)
1997
-23.3 C (-9.9 F)
1998
-28.9 C (-20.0 F)
1999
-16.1 C (3.0 F)
2000
-23.3 C (-9.9 F)
2001
-19.4 C (-2.9 F)
2002
-21.1 C (-6.0 F)
2003
-19.4 C (-2.9 F)
2004
-27.2 C (-17.0 F)
2005
-23.3 C (-9.9 F)
2006
-20.0 C (-4.0 F)
2007
-22.8 C (-9.0 F)
2008
-22.8 C (-9.0 F)
2009
-27.2 C (-17.0 F)
2010
-20.0 C (-4.0 F)
2011
-27.2 C (-17.0 F)
2012
-20.6 C (-5.1 F)
2013
-22.8 C (-9.0 F)
2014
-25.0 C (-13.0 F)
2015
-21.7 C (-7.1 F)
Wettest day (Rx1day)
The wettest day of the year at Ordway 21 N, 1980 to 2015. The record is 81.0 mm (3.2 in) in 2004, marked on the chart; the median year is 34.4 mm (1.4 in).
Wettest day (Rx1day) at Ordway 21 N by year
Year
Wettest day (Rx1day)
1980
24.1 mm (0.9 in)
1981
34.8 mm (1.4 in)
1982
29.5 mm (1.2 in)
1983
22.9 mm (0.9 in)
1984
48.3 mm (1.9 in)
1985
48.8 mm (1.9 in)
1986
35.3 mm (1.4 in)
1987
35.6 mm (1.4 in)
1988
29.7 mm (1.2 in)
1989
30.2 mm (1.2 in)
1990
45.7 mm (1.8 in)
1991
44.2 mm (1.7 in)
1992
38.1 mm (1.5 in)
1993
26.4 mm (1.0 in)
1994
19.8 mm (0.8 in)
1995
38.6 mm (1.5 in)
1996
55.9 mm (2.2 in)
1997
45.7 mm (1.8 in)
1998
47.0 mm (1.9 in)
1999
54.4 mm (2.1 in)
2000
33.3 mm (1.3 in)
2001
42.7 mm (1.7 in)
2002
10.7 mm (0.4 in)
2003
16.3 mm (0.6 in)
2004
81.0 mm (3.2 in)
2005
29.2 mm (1.1 in)
2006
25.9 mm (1.0 in)
2007
62.0 mm (2.4 in)
2008
21.3 mm (0.8 in)
2009
34.5 mm (1.4 in)
2010
59.9 mm (2.4 in)
2011
29.2 mm (1.1 in)
2012
13.2 mm (0.5 in)
2013
25.9 mm (1.0 in)
2014
22.4 mm (0.9 in)
2015
34.3 mm (1.4 in)
Wettest five days (Rx5day)
The wettest five days of the year at Ordway 21 N, 1980 to 2015. The record is 106.2 mm (4.2 in) in 1999, marked on the chart; the median year is 43.9 mm (1.7 in).
Wettest five days (Rx5day) at Ordway 21 N by year
Year
Wettest five days (Rx5day)
1980
30.5 mm (1.2 in)
1981
42.9 mm (1.7 in)
1982
58.9 mm (2.3 in)
1983
30.8 mm (1.2 in)
1984
48.3 mm (1.9 in)
1985
86.9 mm (3.4 in)
1986
43.2 mm (1.7 in)
1987
67.6 mm (2.7 in)
1988
38.1 mm (1.5 in)
1989
37.9 mm (1.5 in)
1990
57.7 mm (2.3 in)
1991
49.3 mm (1.9 in)
1992
41.6 mm (1.6 in)
1993
46.6 mm (1.8 in)
1994
35.4 mm (1.4 in)
1995
59.2 mm (2.3 in)
1996
60.7 mm (2.4 in)
1997
85.8 mm (3.4 in)
1998
60.5 mm (2.4 in)
1999
106.2 mm (4.2 in)
2000
44.5 mm (1.8 in)
2001
53.6 mm (2.1 in)
2002
17.8 mm (0.7 in)
2003
19.8 mm (0.8 in)
2004
83.3 mm (3.3 in)
2005
32.8 mm (1.3 in)
2006
31.2 mm (1.2 in)
2007
64.5 mm (2.5 in)
2008
36.1 mm (1.4 in)
2009
36.2 mm (1.4 in)
2010
61.8 mm (2.4 in)
2011
29.2 mm (1.1 in)
2012
13.2 mm (0.5 in)
2013
36.6 mm (1.4 in)
2014
29.7 mm (1.2 in)
2015
50.8 mm (2.0 in)
Longest dry spell (CDD)
The longest dry spell of the year at Ordway 21 N, 1980 to 2015. The record is 98 days in 2010, marked on the chart; the median year is 46 days.
Longest dry spell (CDD) at Ordway 21 N by year
Year
Longest dry spell (CDD)
1980
36 days
1981
48 days
1982
52 days
1983
45 days
1984
29 days
1985
25 days
1986
68 days
1987
35 days
1988
34 days
1989
50 days
1990
47 days
1991
50 days
1992
63 days
1993
47 days
1994
39 days
1995
87 days
1996
40 days
1997
32 days
1998
36 days
1999
30 days
2000
28 days
2001
50 days
2002
71 days
2003
87 days
2004
44 days
2005
42 days
2006
47 days
2007
38 days
2008
37 days
2009
39 days
2010
98 days
2011
52 days
2012
66 days
2013
51 days
2014
77 days
2015
27 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
33 years with a frost
Across 33 years with a frost, the median last spring frost at Ordway 21 N falls on 6 May and the median first autumn frost on 7 October, which leaves a median of 152 days between them.
Fitted over all years, the growing season changes by +4.4 days per decade at this station.
Frost dates and growing season at Ordway 21 N
Measure
Median, all years
Earliest period
Recent period (1984 to 2014)
Recent against earliest
Fitted trend
Last spring frost
6 May
n/a
5 May
n/a
-2.2 days per decade
First autumn frost
7 October
n/a
7 October
n/a
+2.2 days per decade
Growing days
152 days
n/a
153 days
n/a
+4.4 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
33 years, 1981 to 2014
A day with at least 34.7 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 81.5 mm (3.2 in) of rain is expected about once in 100 years.
Rainfall return levels at Ordway 21 N: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
34.7 mm (1.4 in)
5 years
48.8 mm (1.9 in)
10 years
57.5 mm (2.3 in)
25 years
67.7 mm (2.7 in)
50 years
74.8 mm (2.9 in)
Longer than the 33 years of record
100 years
81.5 mm (3.2 in)
Longer than the 33 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, 33 years of values from 1981 to 2014.
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: 81.0 mm (3.2 in) in 2004; 62.0 mm (2.4 in) in 2007; 59.9 mm (2.4 in) in 2010.
Download the Data
Data for Ordway 21 N standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ordway 21 N 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.