Record envelope, standing records and threshold days for Iuka (USC00224455), Mississippi, United States, with 54 years of record.
Key Facts for Iuka
Iuka (USC00224455) is a weather station in Mississippi, United States at 34.76 latitude and -88.20 longitude, 183 m (600 ft) above sea level.
The station reports from 1959 to 2012, 54 years of record.
1,464 records set at Iuka still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Iuka set a daily record low minimum temperature of 13.3 C (55.9 F) on 12 August 2012.
About the Station
Location: Mississippi, United States, 34.76 latitude, -88.20 longitude.
Elevation: 183 m (600 ft).
Period of record: 1959 to 2012, 54 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 Iuka. 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 Iuka, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
23.9 C (75.0 F)
-24.4 C (-11.9 F)
n/a
n/a
Feb
27.8 C (82.0 F)
-18.9 C (-2.0 F)
n/a
n/a
Mar
30.0 C (86.0 F)
-13.9 C (7.0 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-6.1 C (21.0 F)
n/a
n/a
May
34.4 C (93.9 F)
0.0 C (32.0 F)
n/a
n/a
Jun
38.9 C (102.0 F)
4.4 C (39.9 F)
n/a
n/a
Jul
40.6 C (105.1 F)
11.1 C (52.0 F)
n/a
n/a
Aug
41.1 C (106.0 F)
6.1 C (43.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
1.1 C (34.0 F)
n/a
n/a
Oct
33.3 C (91.9 F)
-5.0 C (23.0 F)
n/a
n/a
Nov
30.6 C (87.1 F)
-10.0 C (14.0 F)
n/a
n/a
Dec
25.0 C (77.0 F)
-21.1 C (-6.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Iuka still stand. 1984 holds the most, with 71.
Standing records at Iuka by the year they were set
Year set
Standing records
1977
15
1978
51
1979
44
1980
70
1981
48
1982
44
1983
46
1984
71
1985
52
1986
66
1987
63
1988
52
1989
69
1990
50
1991
46
1992
36
1993
33
1994
24
1995
33
1996
39
1997
46
1998
22
1999
36
2000
44
2001
40
2002
44
2003
31
2004
42
2005
28
2006
38
2007
35
2008
6
2009
21
2010
26
2011
34
2012
19
All-Time Record Progression
2 new records
2 all-time records were set at Iuka between 10 January 2011 and 2 June 2011. Each dot is a new record.
When Iuka set new all-time records
Date
Kind
Detail
2011-01-10
Record snow depth
Record snow depth 17.8 cm (7.0 in)
2011-06-02
Record high minimum temperature
Record high minimum temperature 25.6 C (78.1 F)
Wettest Day of Each Month
Dec: 203.2 mm (8.0 in)
The wettest day on record for each calendar month at Iuka. The most was 203.2 mm (8.0 in) on 26 December 1982.
Record daily precipitation for each month at Iuka
Month
Record daily precipitation (mm)
Date
Jan
151.1 mm (5.9 in)
23 January 1999
Feb
162.6 mm (6.4 in)
19 February 1991
Mar
117.3 mm (4.6 in)
10 March 1992
Apr
111.8 mm (4.4 in)
5 April 2011
May
144.8 mm (5.7 in)
26 May 1991
Jun
103.6 mm (4.1 in)
10 June 1994
Jul
106.7 mm (4.2 in)
17 July 2010
Aug
180.8 mm (7.1 in)
30 August 2005
Sep
161.3 mm (6.4 in)
22 September 2003
Oct
85.1 mm (3.4 in)
13 October 2001
Nov
119.4 mm (4.7 in)
13 November 2008
Dec
203.2 mm (8.0 in)
26 December 1982
Period of Record Coverage
1977 to 2012
Complete yearUnder 90 percent of days
36 years of record at Iuka, 1977 to 2012. 8 years have data for under 90 percent of days and are left out of rankings: 1977, 1988, 2007, 2008, 2009, 2010, 2011, 2012.
Cooler than the station meanWarmer than the station mean
One stripe for each of 23 complete years at Iuka, 1978 to 2004. Blue stripes are years cooler than the station's own mean of 14.7 C (58.4 F); red stripes are warmer. The coolest year was 1997, at 13.7 C (56.7 F), and the warmest was 1990, at 16.2 C (61.1 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Iuka as warming stripes, 1978 to 2004
Year
Annual mean temperature
Difference from the station mean
1978
14.6 C
-0.07 C
1979
14.3 C
-0.35 C
1980
15.1 C
+0.40 C
1982
15.1 C
+0.43 C
1983
14.3 C
-0.35 C
1984
15.1 C
+0.43 C
1987
15.7 C
+1.05 C
1989
14.6 C
-0.04 C
1990
16.2 C
+1.51 C
1991
15.3 C
+0.68 C
1992
14.0 C
-0.62 C
1993
14.1 C
-0.59 C
1994
14.4 C
-0.25 C
1995
14.5 C
-0.20 C
1996
14.0 C
-0.69 C
1997
13.7 C
-0.93 C
1998
15.4 C
+0.69 C
1999
15.2 C
+0.55 C
2000
14.8 C
+0.11 C
2001
14.3 C
-0.37 C
2002
14.5 C
-0.15 C
2003
13.8 C
-0.83 C
2004
14.3 C
-0.34 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
1959 to 2012
Yearly extremes at Iuka: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
41.1 C (106.0 F)
2007
35.6 C (96.1 F)
36
Coldest night (TNn)
-24.4 C (-11.9 F)
1985
-13.9 C (7.0 F)
36
Wettest day (Rx1day)
203.2 mm (8.0 in)
1982
93.3 mm (3.7 in)
40
Wettest five days (Rx5day)
331.8 mm (13.1 in)
1991
146.8 mm (5.8 in)
40
Longest dry spell (CDD)
38 days
1988
19 days
40
Hottest day (TXx)
The hottest day of the year at Iuka, 1959 to 2012. The record is 41.1 C (106.0 F) in 2007, marked on the chart; the median year is 35.6 C (96.1 F).
Hottest day (TXx) at Iuka by year
Year
Hottest day (TXx)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1977
35.6 C (96.1 F)
1978
37.2 C (99.0 F)
1979
35.0 C (95.0 F)
1980
39.4 C (102.9 F)
1981
36.1 C (97.0 F)
1982
35.6 C (96.1 F)
1983
37.8 C (100.0 F)
1984
36.7 C (98.1 F)
1985
35.6 C (96.1 F)
1986
40.6 C (105.1 F)
1987
38.9 C (102.0 F)
1988
37.8 C (100.0 F)
1989
35.0 C (95.0 F)
1990
38.3 C (100.9 F)
1991
35.6 C (96.1 F)
1992
33.3 C (91.9 F)
1993
35.6 C (96.1 F)
1994
32.2 C (90.0 F)
1995
35.0 C (95.0 F)
1996
33.9 C (93.0 F)
1997
35.6 C (96.1 F)
1998
35.6 C (96.1 F)
1999
38.3 C (100.9 F)
2000
40.0 C (104.0 F)
2001
33.9 C (93.0 F)
2002
36.1 C (97.0 F)
2003
33.3 C (91.9 F)
2004
32.8 C (91.0 F)
2005
34.4 C (93.9 F)
2006
37.2 C (99.0 F)
2007
41.1 C (106.0 F)
2008
23.3 C (73.9 F)
2009
34.4 C (93.9 F)
2010
36.7 C (98.1 F)
2011
38.3 C (100.9 F)
2012
38.9 C (102.0 F)
Coldest night (TNn)
The coldest night of the year at Iuka, 1959 to 2012. The record is -24.4 C (-11.9 F) in 1985, marked on the chart; the median year is -13.9 C (7.0 F).
Coldest night (TNn) at Iuka by year
Year
Coldest night (TNn)
1959
n/a
1960
n/a
1961
n/a
1962
n/a
1977
-11.1 C (12.0 F)
1978
-12.8 C (9.0 F)
1979
-15.0 C (5.0 F)
1980
-13.9 C (7.0 F)
1981
-16.1 C (3.0 F)
1982
-20.0 C (-4.0 F)
1983
-17.8 C (0.0 F)
1984
-16.7 C (1.9 F)
1985
-24.4 C (-11.9 F)
1986
-14.4 C (6.1 F)
1987
-8.3 C (17.1 F)
1988
-15.0 C (5.0 F)
1989
-21.1 C (-6.0 F)
1990
-10.0 C (14.0 F)
1991
-13.3 C (8.1 F)
1992
-11.7 C (10.9 F)
1993
-11.1 C (12.0 F)
1994
-15.6 C (3.9 F)
1995
-13.3 C (8.1 F)
1996
-18.9 C (-2.0 F)
1997
-16.1 C (3.0 F)
1998
-9.4 C (15.1 F)
1999
-16.1 C (3.0 F)
2000
-13.9 C (7.0 F)
2001
-15.0 C (5.0 F)
2002
-13.3 C (8.1 F)
2003
-16.7 C (1.9 F)
2004
-13.3 C (8.1 F)
2005
-11.7 C (10.9 F)
2006
-11.7 C (10.9 F)
2007
-12.2 C (10.0 F)
2008
-12.2 C (10.0 F)
2009
-14.4 C (6.1 F)
2010
-13.3 C (8.1 F)
2011
-15.6 C (3.9 F)
2012
-7.8 C (18.0 F)
Wettest day (Rx1day)
The wettest day of the year at Iuka, 1959 to 2012. The record is 203.2 mm (8.0 in) in 1982, marked on the chart; the median year is 93.3 mm (3.7 in).
Wettest day (Rx1day) at Iuka by year
Year
Wettest day (Rx1day)
1959
60.5 mm (2.4 in)
1960
54.6 mm (2.1 in)
1961
108.0 mm (4.3 in)
1962
56.6 mm (2.2 in)
1977
125.7 mm (4.9 in)
1978
74.9 mm (2.9 in)
1979
96.8 mm (3.8 in)
1980
93.0 mm (3.7 in)
1981
62.0 mm (2.4 in)
1982
203.2 mm (8.0 in)
1983
104.6 mm (4.1 in)
1984
93.5 mm (3.7 in)
1985
78.0 mm (3.1 in)
1986
124.5 mm (4.9 in)
1987
76.2 mm (3.0 in)
1988
88.9 mm (3.5 in)
1989
81.0 mm (3.2 in)
1990
101.6 mm (4.0 in)
1991
162.6 mm (6.4 in)
1992
124.7 mm (4.9 in)
1993
81.8 mm (3.2 in)
1994
107.4 mm (4.2 in)
1995
71.4 mm (2.8 in)
1996
79.0 mm (3.1 in)
1997
84.6 mm (3.3 in)
1998
127.8 mm (5.0 in)
1999
151.1 mm (5.9 in)
2000
64.0 mm (2.5 in)
2001
85.1 mm (3.4 in)
2002
118.1 mm (4.6 in)
2003
161.3 mm (6.4 in)
2004
166.1 mm (6.5 in)
2005
180.8 mm (7.1 in)
2006
62.2 mm (2.4 in)
2007
45.7 mm (1.8 in)
2008
119.4 mm (4.7 in)
2009
53.6 mm (2.1 in)
2010
106.7 mm (4.2 in)
2011
111.8 mm (4.4 in)
2012
33.0 mm (1.3 in)
Wettest five days (Rx5day)
The wettest five days of the year at Iuka, 1959 to 2012. The record is 331.8 mm (13.1 in) in 1991, marked on the chart; the median year is 146.8 mm (5.8 in).
Wettest five days (Rx5day) at Iuka by year
Year
Wettest five days (Rx5day)
1959
80.0 mm (3.1 in)
1960
80.1 mm (3.2 in)
1961
148.2 mm (5.8 in)
1962
93.5 mm (3.7 in)
1977
192.2 mm (7.6 in)
1978
164.5 mm (6.5 in)
1979
132.7 mm (5.2 in)
1980
178.8 mm (7.0 in)
1981
93.7 mm (3.7 in)
1982
249.9 mm (9.8 in)
1983
199.7 mm (7.9 in)
1984
123.7 mm (4.9 in)
1985
123.0 mm (4.8 in)
1986
161.4 mm (6.4 in)
1987
107.7 mm (4.2 in)
1988
115.3 mm (4.5 in)
1989
194.6 mm (7.7 in)
1990
204.7 mm (8.1 in)
1991
331.8 mm (13.1 in)
1992
182.1 mm (7.2 in)
1993
105.5 mm (4.2 in)
1994
145.3 mm (5.7 in)
1995
187.8 mm (7.4 in)
1996
126.0 mm (5.0 in)
1997
154.2 mm (6.1 in)
1998
140.2 mm (5.5 in)
1999
151.1 mm (5.9 in)
2000
132.1 mm (5.2 in)
2001
170.2 mm (6.7 in)
2002
262.1 mm (10.3 in)
2003
167.7 mm (6.6 in)
2004
188.9 mm (7.4 in)
2005
201.1 mm (7.9 in)
2006
85.7 mm (3.4 in)
2007
64.0 mm (2.5 in)
2008
140.0 mm (5.5 in)
2009
87.4 mm (3.4 in)
2010
150.4 mm (5.9 in)
2011
134.5 mm (5.3 in)
2012
20.3 mm (0.8 in)
Longest dry spell (CDD)
The longest dry spell of the year at Iuka, 1959 to 2012. The record is 38 days in 1988, marked on the chart; the median year is 19 days.
Longest dry spell (CDD) at Iuka by year
Year
Longest dry spell (CDD)
1959
17 days
1960
14 days
1961
30 days
1962
8 days
1977
15 days
1978
17 days
1979
13 days
1980
24 days
1981
12 days
1982
12 days
1983
28 days
1984
25 days
1985
17 days
1986
23 days
1987
30 days
1988
38 days
1989
15 days
1990
27 days
1991
15 days
1992
18 days
1993
17 days
1994
15 days
1995
14 days
1996
19 days
1997
19 days
1998
31 days
1999
20 days
2000
38 days
2001
29 days
2002
22 days
2003
16 days
2004
22 days
2005
17 days
2006
20 days
2007
26 days
2008
16 days
2009
19 days
2010
24 days
2011
31 days
2012
28 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
23 years with a frost
Across 23 years with a frost, the median last spring frost at Iuka falls on 13 April and the median first autumn frost on 19 October, which leaves a median of 189 days between them.
Frost dates and growing season at Iuka
Measure
Median, all years
Earliest period
Recent period (1978 to 2004)
Recent against earliest
Fitted trend
Last spring frost
13 April
n/a
13 April
n/a
n/a
First autumn frost
19 October
n/a
19 October
n/a
n/a
Growing days
189 days
n/a
189 days
n/a
n/a
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
31 years, 1960 to 2006
A day with at least 96.5 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 250.4 mm (9.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Iuka: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
96.5 mm (3.8 in)
5 years
130.9 mm (5.2 in)
10 years
156.2 mm (6.1 in)
25 years
191.3 mm (7.5 in)
50 years
219.8 mm (8.7 in)
Longer than the 31 years of record
100 years
250.4 mm (9.9 in)
Longer than the 31 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, 31 years of values from 1960 to 2006.
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: 203.2 mm (8.0 in) in 1982; 180.8 mm (7.1 in) in 2005; 166.1 mm (6.5 in) in 2004.
Download the Data
Data for Iuka standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Iuka 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.