Record envelope, standing records and threshold days for Onward (USC00226562), Mississippi, United States, with 39 years of record.
Key Facts for Onward
Onward (USC00226562) is a weather station in Mississippi, United States at 32.73 latitude and -90.94 longitude, 32 m (105 ft) above sea level.
The station reports from 1954 to 1992, 39 years of record.
1,464 records set at Onward still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Onward tied a daily record snow depth of 2.5 cm (1.0 in) on 18 January 1992.
About the Station
Location: Mississippi, United States, 32.73 latitude, -90.94 longitude.
Elevation: 32 m (105 ft).
Period of record: 1954 to 1992, 39 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 Onward. 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 Onward, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
27.2 C (81.0 F)
-19.4 C (-2.9 F)
n/a
n/a
Feb
29.4 C (84.9 F)
-12.8 C (9.0 F)
n/a
n/a
Mar
31.1 C (88.0 F)
-8.3 C (17.1 F)
n/a
n/a
Apr
34.4 C (93.9 F)
-3.9 C (25.0 F)
n/a
n/a
May
37.2 C (99.0 F)
4.4 C (39.9 F)
n/a
n/a
Jun
37.8 C (100.0 F)
6.7 C (44.1 F)
n/a
n/a
Jul
39.4 C (102.9 F)
11.1 C (52.0 F)
n/a
n/a
Aug
38.9 C (102.0 F)
8.9 C (48.0 F)
n/a
n/a
Sep
37.8 C (100.0 F)
1.7 C (35.1 F)
n/a
n/a
Oct
34.4 C (93.9 F)
-3.9 C (25.0 F)
n/a
n/a
Nov
30.0 C (86.0 F)
-9.4 C (15.1 F)
n/a
n/a
Dec
28.3 C (82.9 F)
-18.9 C (-2.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Onward still stand. 1963 holds the most, with 78.
Standing records at Onward by the year they were set
Year set
Standing records
1954
2
1955
70
1956
37
1957
39
1958
34
1959
40
1960
50
1961
44
1962
44
1963
78
1964
47
1965
43
1966
42
1967
55
1968
25
1969
38
1970
39
1971
24
1972
48
1973
26
1974
39
1975
27
1976
27
1977
41
1978
33
1979
25
1980
62
1981
40
1982
41
1983
36
1984
33
1985
41
1986
37
1987
26
1988
24
1989
59
1990
23
1991
25
Wettest Day of Each Month
Nov: 187.2 mm (7.4 in)
The wettest day on record for each calendar month at Onward. The most was 187.2 mm (7.4 in) on 27 November 1973.
Record daily precipitation for each month at Onward
Month
Record daily precipitation (mm)
Date
Jan
99.8 mm (3.9 in)
20 January 1979
Feb
134.6 mm (5.3 in)
10 February 1966
Mar
132.1 mm (5.2 in)
4 March 1977
Apr
147.3 mm (5.8 in)
21 April 1966
May
180.6 mm (7.1 in)
5 May 1989
Jun
83.8 mm (3.3 in)
8 June 1974
Jul
133.6 mm (5.3 in)
2 July 1981
Aug
141.7 mm (5.6 in)
2 August 1982
Sep
103.1 mm (4.1 in)
12 September 1982
Oct
177.8 mm (7.0 in)
7 October 1982
Nov
187.2 mm (7.4 in)
27 November 1973
Dec
151.1 mm (5.9 in)
30 December 1969
Period of Record Coverage
1954 to 1992
Complete yearUnder 90 percent of days
39 years of record at Onward, 1954 to 1992. 4 years have data for under 90 percent of days and are left out of rankings: 1954, 1990, 1991, 1992.
Cooler than the station meanWarmer than the station mean
One stripe for each of 33 complete years at Onward, 1955 to 1989. Blue stripes are years cooler than the station's own mean of 17.3 C (63.1 F); red stripes are warmer. The coolest year was 1989, at 16.2 C (61.2 F), and the warmest was 1973, at 18.4 C (65.1 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Onward as warming stripes, 1955 to 1989
Year
Annual mean temperature
Difference from the station mean
1955
17.6 C
+0.29 C
1956
17.6 C
+0.33 C
1957
17.9 C
+0.57 C
1958
16.6 C
-0.70 C
1959
17.2 C
-0.07 C
1960
16.6 C
-0.71 C
1961
16.8 C
-0.50 C
1962
17.6 C
+0.29 C
1963
17.0 C
-0.31 C
1964
17.3 C
0.00 C
1965
17.8 C
+0.51 C
1966
17.1 C
-0.21 C
1967
17.1 C
-0.23 C
1968
16.6 C
-0.66 C
1969
17.2 C
-0.14 C
1970
17.2 C
-0.12 C
1971
17.7 C
+0.43 C
1972
17.7 C
+0.36 C
1973
18.4 C
+1.11 C
1974
17.9 C
+0.57 C
1975
17.7 C
+0.44 C
1976
16.8 C
-0.49 C
1977
17.9 C
+0.64 C
1978
17.1 C
-0.24 C
1979
16.7 C
-0.60 C
1980
17.5 C
+0.19 C
1981
17.7 C
+0.40 C
1982
17.8 C
+0.50 C
1983
16.7 C
-0.57 C
1984
17.9 C
+0.59 C
1986
17.3 C
+0.03 C
1988
16.8 C
-0.49 C
1989
16.2 C
-1.09 C
The fitted trend in annual mean temperature here over 1955 to 1989 is -0.03 C (-0.21 to 0.16) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.05 F (-0.39 to 0.30) 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 Onward
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
-0.03 C (-0.21 to 0.16) per decade
-0.05 F (-0.39 to 0.30) per decade
1955 to 1989
33
Not clearly different from zero
Mean daily maximum
-0.20 C (-0.41 to 0.02) per decade
-0.35 F (-0.74 to 0.03) per decade
1955 to 1989
33
Not clearly different from zero
Mean daily minimum
0.1 C (-0.1 to 0.4) per decade
0.3 F (-0.2 to 0.7) per decade
1955 to 1989
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
1954 to 1992
Yearly extremes at Onward: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.4 C (102.9 F)
1980
36.7 C (98.1 F)
39
Coldest night (TNn)
-19.4 C (-2.9 F)
1962
-10.0 C (14.0 F)
39
Wettest day (Rx1day)
187.2 mm (7.4 in)
1973
93.5 mm (3.7 in)
39
Wettest five days (Rx5day)
324.9 mm (12.8 in)
1982
150.8 mm (5.9 in)
39
Longest dry spell (CDD)
39 days
1960
23 days
39
Hottest day (TXx)
The hottest day of the year at Onward, 1954 to 1992. The record is 39.4 C (102.9 F) in 1980, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Onward by year
Year
Hottest day (TXx)
1954
21.1 C (70.0 F)
1955
35.0 C (95.0 F)
1956
36.7 C (98.1 F)
1957
36.1 C (97.0 F)
1958
35.0 C (95.0 F)
1959
35.0 C (95.0 F)
1960
37.8 C (100.0 F)
1961
33.9 C (93.0 F)
1962
36.7 C (98.1 F)
1963
37.8 C (100.0 F)
1964
37.2 C (99.0 F)
1965
36.1 C (97.0 F)
1966
37.2 C (99.0 F)
1967
35.6 C (96.1 F)
1968
35.0 C (95.0 F)
1969
38.3 C (100.9 F)
1970
37.8 C (100.0 F)
1971
36.7 C (98.1 F)
1972
36.7 C (98.1 F)
1973
35.6 C (96.1 F)
1974
36.1 C (97.0 F)
1975
35.0 C (95.0 F)
1976
36.1 C (97.0 F)
1977
38.3 C (100.9 F)
1978
36.7 C (98.1 F)
1979
36.1 C (97.0 F)
1980
39.4 C (102.9 F)
1981
37.8 C (100.0 F)
1982
36.7 C (98.1 F)
1983
36.7 C (98.1 F)
1984
36.1 C (97.0 F)
1985
38.9 C (102.0 F)
1986
38.9 C (102.0 F)
1987
36.1 C (97.0 F)
1988
37.8 C (100.0 F)
1989
36.1 C (97.0 F)
1990
37.2 C (99.0 F)
1991
37.2 C (99.0 F)
1992
19.4 C (66.9 F)
Coldest night (TNn)
The coldest night of the year at Onward, 1954 to 1992. The record is -19.4 C (-2.9 F) in 1962, marked on the chart; the median year is -10.0 C (14.0 F).
Coldest night (TNn) at Onward by year
Year
Coldest night (TNn)
1954
-7.8 C (18.0 F)
1955
-10.0 C (14.0 F)
1956
-8.9 C (16.0 F)
1957
-8.9 C (16.0 F)
1958
-10.0 C (14.0 F)
1959
-10.0 C (14.0 F)
1960
-12.8 C (9.0 F)
1961
-11.1 C (12.0 F)
1962
-19.4 C (-2.9 F)
1963
-16.7 C (1.9 F)
1964
-11.7 C (10.9 F)
1965
-8.9 C (16.0 F)
1966
-12.8 C (9.0 F)
1967
-6.7 C (19.9 F)
1968
-8.3 C (17.1 F)
1969
-10.6 C (12.9 F)
1970
-10.6 C (12.9 F)
1971
-8.9 C (16.0 F)
1972
-10.6 C (12.9 F)
1973
-6.7 C (19.9 F)
1974
-4.4 C (24.1 F)
1975
-8.9 C (16.0 F)
1976
-10.6 C (12.9 F)
1977
-15.6 C (3.9 F)
1978
-8.9 C (16.0 F)
1979
-10.6 C (12.9 F)
1980
-8.3 C (17.1 F)
1981
-10.0 C (14.0 F)
1982
-15.6 C (3.9 F)
1983
-14.4 C (6.1 F)
1984
-11.1 C (12.0 F)
1985
-15.6 C (3.9 F)
1986
-9.4 C (15.1 F)
1987
-7.2 C (19.0 F)
1988
-10.0 C (14.0 F)
1989
-18.9 C (-2.0 F)
1990
-3.9 C (25.0 F)
1991
-5.0 C (23.0 F)
1992
-6.1 C (21.0 F)
Wettest day (Rx1day)
The wettest day of the year at Onward, 1954 to 1992. The record is 187.2 mm (7.4 in) in 1973, marked on the chart; the median year is 93.5 mm (3.7 in).
Wettest day (Rx1day) at Onward by year
Year
Wettest day (Rx1day)
1954
67.1 mm (2.6 in)
1955
76.2 mm (3.0 in)
1956
84.8 mm (3.3 in)
1957
80.0 mm (3.1 in)
1958
102.1 mm (4.0 in)
1959
75.4 mm (3.0 in)
1960
99.1 mm (3.9 in)
1961
85.3 mm (3.4 in)
1962
46.0 mm (1.8 in)
1963
64.8 mm (2.6 in)
1964
100.6 mm (4.0 in)
1965
86.4 mm (3.4 in)
1966
147.3 mm (5.8 in)
1967
83.8 mm (3.3 in)
1968
113.5 mm (4.5 in)
1969
151.1 mm (5.9 in)
1970
80.0 mm (3.1 in)
1971
93.5 mm (3.7 in)
1972
73.9 mm (2.9 in)
1973
187.2 mm (7.4 in)
1974
83.8 mm (3.3 in)
1975
104.1 mm (4.1 in)
1976
64.5 mm (2.5 in)
1977
132.1 mm (5.2 in)
1978
80.0 mm (3.1 in)
1979
103.1 mm (4.1 in)
1980
110.2 mm (4.3 in)
1981
133.6 mm (5.3 in)
1982
177.8 mm (7.0 in)
1983
135.6 mm (5.3 in)
1984
111.8 mm (4.4 in)
1985
94.0 mm (3.7 in)
1986
106.7 mm (4.2 in)
1987
111.8 mm (4.4 in)
1988
53.8 mm (2.1 in)
1989
180.6 mm (7.1 in)
1990
65.5 mm (2.6 in)
1991
84.6 mm (3.3 in)
1992
24.1 mm (0.9 in)
Wettest five days (Rx5day)
The wettest five days of the year at Onward, 1954 to 1992. The record is 324.9 mm (12.8 in) in 1982, marked on the chart; the median year is 150.8 mm (5.9 in).
Wettest five days (Rx5day) at Onward by year
Year
Wettest five days (Rx5day)
1954
78.0 mm (3.1 in)
1955
133.3 mm (5.2 in)
1956
193.6 mm (7.6 in)
1957
120.9 mm (4.8 in)
1958
200.4 mm (7.9 in)
1959
130.1 mm (5.1 in)
1960
100.9 mm (4.0 in)
1961
155.8 mm (6.1 in)
1962
68.1 mm (2.7 in)
1963
82.3 mm (3.2 in)
1964
125.2 mm (4.9 in)
1965
180.3 mm (7.1 in)
1966
200.1 mm (7.9 in)
1967
150.1 mm (5.9 in)
1968
169.2 mm (6.7 in)
1969
163.0 mm (6.4 in)
1970
163.0 mm (6.4 in)
1971
143.3 mm (5.6 in)
1972
132.1 mm (5.2 in)
1973
211.9 mm (8.3 in)
1974
160.0 mm (6.3 in)
1975
168.9 mm (6.6 in)
1976
87.2 mm (3.4 in)
1977
162.3 mm (6.4 in)
1978
160.7 mm (6.3 in)
1979
153.9 mm (6.1 in)
1980
116.9 mm (4.6 in)
1981
149.1 mm (5.9 in)
1982
324.9 mm (12.8 in)
1983
272.8 mm (10.7 in)
1984
152.4 mm (6.0 in)
1985
112.9 mm (4.4 in)
1986
150.8 mm (5.9 in)
1987
136.3 mm (5.4 in)
1988
74.4 mm (2.9 in)
1989
197.3 mm (7.8 in)
1990
138.7 mm (5.5 in)
1991
186.0 mm (7.3 in)
1992
34.0 mm (1.3 in)
Longest dry spell (CDD)
The longest dry spell of the year at Onward, 1954 to 1992. The record is 39 days in 1960, marked on the chart; the median year is 23 days.
Longest dry spell (CDD) at Onward by year
Year
Longest dry spell (CDD)
1954
15 days
1955
28 days
1956
21 days
1957
17 days
1958
26 days
1959
20 days
1960
39 days
1961
22 days
1962
28 days
1963
33 days
1964
23 days
1965
28 days
1966
22 days
1967
23 days
1968
19 days
1969
21 days
1970
26 days
1971
18 days
1972
25 days
1973
17 days
1974
17 days
1975
21 days
1976
26 days
1977
21 days
1978
31 days
1979
31 days
1980
24 days
1981
22 days
1982
15 days
1983
27 days
1984
14 days
1985
20 days
1986
24 days
1987
29 days
1988
29 days
1989
23 days
1990
31 days
1991
20 days
1992
9 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 Onward falls on 19 March and the median first autumn frost on 6 November, which leaves a median of 234 days between them.
Fitted over all years, the growing season changes by +8.6 days per decade at this station.
Frost dates and growing season at Onward
Measure
Median, all years
Earliest period
Recent period (1958 to 1989)
Recent against earliest
Fitted trend
Last spring frost
19 March
n/a
15 March
n/a
-2.9 days per decade
First autumn frost
6 November
n/a
7 November
n/a
+5.6 days per decade
Growing days
234 days
n/a
235 days
n/a
+8.6 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
34 years, 1955 to 1989
A day with at least 97.6 mm (3.8 in) of rain is expected about once in 2 years. A day with at least 225.2 mm (8.9 in) of rain is expected about once in 100 years.
Rainfall return levels at Onward: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
97.6 mm (3.8 in)
5 years
128.0 mm (5.0 in)
10 years
149.6 mm (5.9 in)
25 years
178.5 mm (7.0 in)
50 years
201.3 mm (7.9 in)
Longer than the 34 years of record
100 years
225.2 mm (8.9 in)
Longer than the 34 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, 34 years of values from 1955 to 1989.
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: 187.2 mm (7.4 in) in 1973; 180.6 mm (7.1 in) in 1989; 177.8 mm (7.0 in) in 1982.
Download the Data
Data for Onward standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Onward 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.