38.380°N, 81.591°W · station CRWthr · 135 years of record
63°F
COLDEST SEP 7 SINCE 2025
forecast low · Sep 7
7-Day Forecast
NWS NDFD forecast low temperature for Charleston.
This Day in History
Every year's low on each of the next 7 forecast dates at Charleston — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#121 / 123
coldest Sep 2 in 123 yrs of record
Coldest Sep 2 ever
44°F
set in 1909
Mildest Sep 2 ever
72°F
set in 1905
Forecast low 72°F — 121st coldest Sep 2 of 123 years · record 44°F (1909) · coldest since 2025.
Ranks
#121 / 122
coldest Sep 3 in 122 yrs of record
Coldest Sep 3 ever
45°F
set in 1967
Mildest Sep 3 ever
74°F
set in 1957
Forecast low 73°F — 121st coldest Sep 3 of 122 years · record 45°F (1967) · coldest since 2025.
Ranks
#120 / 122
coldest Sep 4 in 122 yrs of record
Coldest Sep 4 ever
44°F
set in 1997
Mildest Sep 4 ever
73°F
set in 1966
Forecast low 73°F — 120th coldest Sep 4 of 122 years · record 44°F (1997) · coldest since 2025.
Ranks
#120 / 123
coldest Sep 5 in 123 yrs of record
Coldest Sep 5 ever
41°F
set in 1902
Mildest Sep 5 ever
73°F
set in 1932
Forecast low 70°F — 120th coldest Sep 5 of 123 years · record 41°F (1902) · coldest since 2025.
Ranks
#80 / 123
coldest Sep 6 in 123 yrs of record
Coldest Sep 6 ever
41°F
set in 1892
Mildest Sep 6 ever
74°F
set in 1985
Forecast low 64°F — 80th coldest Sep 6 of 123 years · record 41°F (1892) · coldest since 2025.
Ranks
#79 / 123
coldest Sep 7 in 123 yrs of record
Coldest Sep 7 ever
46°F
set in 1892
Mildest Sep 7 ever
72°F
set in 1985
Forecast low 63°F — 79th coldest Sep 7 of 123 years · record 46°F (1892) · coldest since 2025.
Ranks
#80 / 123
coldest Sep 8 in 123 yrs of record
Coldest Sep 8 ever
45°F
set in 1951
Mildest Sep 8 ever
71°F
set in 1912
Forecast low 63°F — 80th coldest Sep 8 of 123 years · record 45°F (1951) · coldest since 2025.
The hottest and coldest ever recorded at Charleston in each calendar month, and for the whole 1892–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
81°FJan 15, 1932
-16°FJan 19, 1994
Feb
81°FFeb 20, 2018
-12°FFeb 5, 1996
Mar
92°FMar 26, 1929
-5°FMar 4, 1943
Apr
96°FApr 25, 1925
18°FApr 1, 1923
May
98°FMay 10, 1930
26°FMay 10, 1966
Jun
105°FJun 21, 1931
33°FJun 11, 1972
Jul
108°FJul 4, 1931
46°FJul 10, 1961
Aug
108°FAug 6, 1918
41°FAug 29, 1965
Sep
104°FSep 1, 1932
32°FSep 29, 1942
Oct
96°FOct 4, 1903
17°FOct 27, 1962
Nov
87°FNov 18, 1931
6°FNov 30, 1929
Dec
80°FDec 10, 1971
-17°FDec 30, 1917
All-time
108°FAug 6, 1918
-17°FDec 30, 1917
2026 Records So Far
Records set or tied at Charleston so far this year — through Aug 30.
Record Highs in 2026
5 broke
plus 1 tied — daily record highs set this year
Record Lows in 2026
0 broke
plus 0 tied — daily record lows set this year
Record Warm Nights & Cold Days
Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.
Warmest low ever
84°F
record high minimum — the night it never cooled · Jul 29, 1924
Coldest high ever
4°F
record low maximum — the day it never warmed · Dec 22, 1989
Month
Warmest low
Coldest high
Jan
62°FJan 22, 1906
6°FJan 17, 1977
Feb
61°FFeb 21, 1997
9°FFeb 19, 2015
Mar
68°FMar 15, 1990
16°FMar 1, 1980
Apr
72°FApr 2, 1946
32°FApr 4, 1987
May
74°FMay 22, 1953
43°FMay 9, 1923
Jun
78°FJun 5, 1904
53°FJun 4, 1945
Jul
84°FJul 29, 1924
64°FJul 5, 1972
Aug
80°FAug 17, 1924
65°FAug 31, 1967
Sep
74°FSep 3, 1957
47°FSep 29, 1967
Oct
72°FOct 4, 1986
34°FOct 26, 1962
Nov
69°FNov 5, 1959
12°FNov 25, 1950
Dec
64°FDec 29, 1984
4°FDec 22, 1989
All-time
84°FJul 29, 1924
4°FDec 22, 1989
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
69 days
record run, ended Feb 9 1918
So far in 2026
59 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from Charleston's own 1991–2020 record. Today's normal low: 60°F · forecast is +3° vs normal.
Charleston's observed daily low for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
2026 So Far
Every day this year against Charleston's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.