Walterboro 1 SW Weather Records (USC00388922)
Record envelope, standing records and threshold days for Walterboro 1 SW (USC00388922), South Carolina, United States, with 124 years of record.
Key Facts for Walterboro 1 SW
- Walterboro 1 SW (USC00388922) is a weather station in South Carolina, United States at 32.88 latitude and -80.68 longitude, 17 m (56 ft) above sea level.
- The station reports from 1903 to 2026, 124 years of record.
- 1,464 records set at Walterboro 1 SW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Walterboro 1 SW set a daily record precipitation of 65.5 mm (2.6 in) on 11 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: South Carolina, United States, 32.88 latitude, -80.68 longitude.
- Elevation: 17 m (56 ft).
- Period of record: 1903 to 2026, 124 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
7 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 29.4 C (84.9 F) | -17.8 C (0.0 F) | 27.2 C (81.0 F) | -9.4 C (15.1 F) |
| Feb | 31.1 C (88.0 F) | -12.8 C (9.0 F) | 28.3 C (82.9 F) | -7.2 C (19.0 F) |
| Mar | 36.7 C (98.1 F) | -9.4 C (15.1 F) | 31.7 C (89.1 F) | 4.4 C (39.9 F) |
| Apr | 35.0 C (95.0 F) | -3.3 C (26.1 F) | 33.9 C (93.0 F) | 5.6 C (42.1 F) |
| May | 39.4 C (102.9 F) | -0.6 C (30.9 F) | 33.9 C (93.0 F) | 6.7 C (44.1 F) |
| Jun | 41.1 C (106.0 F) | 6.7 C (44.1 F) | 38.3 C (100.9 F) | 11.1 C (52.0 F) |
| Jul | 41.1 C (106.0 F) | 12.2 C (54.0 F) | 38.9 C (102.0 F) | 20.0 C (68.0 F) |
| Aug | 41.7 C (107.1 F) | 12.8 C (55.0 F) | 38.3 C (100.9 F) | 21.7 C (71.1 F) |
| Sep | 40.6 C (105.1 F) | 2.8 C (37.0 F) | 36.7 C (98.1 F) | 10.0 C (50.0 F) |
| Oct | 37.8 C (100.0 F) | -4.4 C (24.1 F) | 33.3 C (91.9 F) | 16.7 C (62.1 F) |
| Nov | 32.8 C (91.0 F) | -11.7 C (10.9 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | -15.0 C (5.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1903 | 6 |
| 1904 | 11 |
| 1905 | 16 |
| 1906 | 11 |
| 1907 | 28 |
| 1908 | 17 |
| 1909 | 13 |
| 1910 | 17 |
| 1911 | 32 |
| 1912 | 21 |
| 1913 | 37 |
| 1914 | 14 |
| 1915 | 9 |
| 1916 | 7 |
| 1917 | 32 |
| 1918 | 32 |
| 1919 | 17 |
| 1920 | 11 |
| 1936 | 1 |
| 1937 | 20 |
| 1938 | 14 |
| 1939 | 19 |
| 1940 | 19 |
| 1941 | 19 |
| 1942 | 9 |
| 1943 | 31 |
| 1944 | 25 |
| 1945 | 25 |
| 1946 | 11 |
| 1947 | 10 |
| 1948 | 3 |
| 1949 | 4 |
| 1950 | 12 |
| 1951 | 15 |
| 1952 | 19 |
| 1953 | 17 |
| 1954 | 29 |
| 1955 | 13 |
| 1956 | 14 |
| 1957 | 18 |
| 1958 | 19 |
| 1959 | 7 |
| 1960 | 17 |
| 1961 | 19 |
| 1962 | 16 |
| 1963 | 12 |
| 1964 | 15 |
| 1965 | 6 |
| 1966 | 37 |
| 1967 | 30 |
| 1968 | 17 |
| 1969 | 16 |
| 1970 | 15 |
| 1971 | 14 |
| 1972 | 15 |
| 1973 | 6 |
| 1974 | 14 |
| 1975 | 10 |
| 1976 | 19 |
| 1977 | 22 |
| 1978 | 12 |
| 1979 | 5 |
| 1980 | 8 |
| 1981 | 12 |
| 1982 | 7 |
| 1983 | 20 |
| 1984 | 25 |
| 1985 | 16 |
| 1986 | 20 |
| 1987 | 8 |
| 1988 | 18 |
| 1989 | 19 |
| 1990 | 10 |
| 1991 | 24 |
| 1992 | 8 |
| 1993 | 10 |
| 1994 | 6 |
| 1999 | 4 |
| 2000 | 15 |
| 2001 | 6 |
| 2002 | 20 |
| 2003 | 8 |
| 2004 | 14 |
| 2005 | 3 |
| 2006 | 8 |
| 2007 | 8 |
| 2008 | 8 |
| 2009 | 9 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 6 |
| 2013 | 8 |
| 2014 | 17 |
| 2015 | 6 |
| 2016 | 2 |
| 2017 | 12 |
| 2018 | 6 |
| 2019 | 6 |
| 2020 | 9 |
| 2021 | 11 |
| 2022 | 9 |
| 2023 | 5 |
| 2024 | 5 |
| 2025 | 8 |
| 2026 | 8 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1950-11-26 | Record low maximum temperature | Record low maximum temperature -3.9 C (25.0 F) |
| 1954-08-17 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 1959-07-13 | Record daily precipitation | Record daily precipitation 185.4 mm (7.3 in) |
| 1962-12-13 | Record low minimum temperature | Record low minimum temperature -15.0 C (5.0 F) |
| 1985-01-21 | Record low minimum temperature | Record low minimum temperature -17.8 C (0.0 F) |
| 2016-10-08 | Record daily precipitation | Record daily precipitation 253.7 mm (10.0 in) |
Wettest Day of Each Month
Oct: 253.7 mm (10.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 73.7 mm (2.9 in) | 12 January 1964 |
| Feb | 91.7 mm (3.6 in) | 4 February 2016 |
| Mar | 96.5 mm (3.8 in) | 9 March 1976 |
| Apr | 76.2 mm (3.0 in) | 23 April 2006 |
| May | 147.8 mm (5.8 in) | 22 May 1967 |
| Jun | 161.3 mm (6.4 in) | 10 June 1942 |
| Jul | 185.4 mm (7.3 in) | 13 July 1959 |
| Aug | 203.7 mm (8.0 in) | 6 August 2024 |
| Sep | 172.7 mm (6.8 in) | 16 September 1945 |
| Oct | 253.7 mm (10.0 in) | 8 October 2016 |
| Nov | 124.5 mm (4.9 in) | 7 November 2024 |
| Dec | 96.0 mm (3.8 in) | 6 December 2016 |
Period of Record Coverage
1903 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1903 | 243 | 67% | No |
| 1904 | 364 | 99% | Yes |
| 1905 | 358 | 98% | Yes |
| 1906 | 350 | 96% | Yes |
| 1907 | 352 | 96% | Yes |
| 1908 | 333 | 91% | Yes |
| 1909 | 343 | 94% | Yes |
| 1910 | 341 | 93% | Yes |
| 1911 | 354 | 97% | Yes |
| 1912 | 351 | 96% | Yes |
| 1913 | 203 | 56% | No |
| 1914 | 330 | 90% | Yes |
| 1915 | 348 | 95% | Yes |
| 1916 | 189 | 52% | No |
| 1917 | 303 | 83% | No |
| 1918 | 329 | 90% | Yes |
| 1919 | 274 | 75% | No |
| 1920 | 163 | 45% | No |
| 1936 | 31 | 8% | No |
| 1937 | 354 | 97% | Yes |
| 1938 | 345 | 95% | Yes |
| 1939 | 345 | 95% | Yes |
| 1940 | 353 | 96% | Yes |
| 1941 | 353 | 97% | Yes |
| 1942 | 290 | 79% | No |
| 1943 | 355 | 97% | Yes |
| 1944 | 363 | 99% | Yes |
| 1945 | 362 | 99% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 290 | 79% | No |
| 1948 | 357 | 98% | Yes |
| 1949 | 303 | 83% | No |
| 1950 | 223 | 61% | No |
| 1951 | 352 | 96% | Yes |
| 1952 | 344 | 94% | Yes |
| 1953 | 325 | 89% | No |
| 1954 | 345 | 95% | Yes |
| 1955 | 316 | 87% | No |
| 1956 | 341 | 93% | Yes |
| 1957 | 323 | 88% | No |
| 1958 | 331 | 91% | Yes |
| 1959 | 356 | 98% | Yes |
| 1960 | 363 | 99% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 361 | 99% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 364 | 100% | Yes |
| 1967 | 365 | 100% | Yes |
| 1968 | 363 | 99% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 363 | 99% | Yes |
| 1973 | 365 | 100% | Yes |
| 1974 | 301 | 82% | No |
| 1975 | 365 | 100% | Yes |
| 1976 | 362 | 99% | Yes |
| 1977 | 358 | 98% | Yes |
| 1978 | 358 | 98% | Yes |
| 1979 | 360 | 99% | Yes |
| 1980 | 362 | 99% | Yes |
| 1981 | 364 | 100% | Yes |
| 1982 | 356 | 98% | Yes |
| 1983 | 355 | 97% | Yes |
| 1984 | 354 | 97% | Yes |
| 1985 | 363 | 99% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 360 | 99% | Yes |
| 1988 | 347 | 95% | Yes |
| 1989 | 258 | 71% | No |
| 1990 | 351 | 96% | Yes |
| 1991 | 146 | 40% | No |
| 1992 | 262 | 72% | No |
| 1993 | 260 | 71% | No |
| 1994 | 122 | 33% | No |
| 1996 | 31 | 8% | No |
| 1999 | 151 | 41% | No |
| 2000 | 329 | 90% | No |
| 2001 | 362 | 99% | Yes |
| 2002 | 364 | 100% | Yes |
| 2003 | 355 | 97% | Yes |
| 2004 | 294 | 80% | No |
| 2005 | 267 | 73% | No |
| 2006 | 361 | 99% | Yes |
| 2007 | 358 | 98% | Yes |
| 2008 | 355 | 97% | Yes |
| 2009 | 349 | 96% | Yes |
| 2010 | 354 | 97% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 356 | 98% | Yes |
| 2015 | 229 | 63% | No |
| 2016 | 337 | 92% | Yes |
| 2017 | 342 | 94% | Yes |
| 2018 | 281 | 77% | No |
| 2019 | 342 | 94% | Yes |
| 2020 | 355 | 97% | Yes |
| 2021 | 346 | 95% | Yes |
| 2022 | 350 | 96% | Yes |
| 2023 | 362 | 99% | Yes |
| 2024 | 362 | 99% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 282 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 11 October 2026 | Walterboro 1 SW, US | daily rain (Provisional) | 65.5 mm (2.6 in) | 7.1 mm (0.28 in) | 36 years | 23 of 100 (Routine) |
| 5 October 2026 | Walterboro 1 SW, US | daily rain (Provisional) | 66.0 mm (2.6 in) | 17.7 mm (0.7 in) | 11 years | 22 of 100 (Routine) |
| 20 September 2026 | Walterboro 1 SW, US | daily rain (Provisional) | 100.3 mm (3.9 in) | 71.6 mm (2.8 in) | 108 years | 74 of 100 (Major) |
| 15 September 2026 | Walterboro 1 SW, US | daily high max (Provisional) | 36.7 C (98.1 F) | 0.6 C (1.1 F) | 88 years | 37 of 100 (Notable) |
| 19 August 2026 | Walterboro 1 SW, US | daily high max (Tie, Provisional) | 38.3 C (100.9 F) | tie | 115 years | 10 of 100 (Routine) |
| 22 June 2026 | Walterboro 1 SW, US | daily low max | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 112 years | 45 of 100 (Notable) |
| 14 June 2026 | Walterboro 1 SW, US | daily high max | 38.3 C (100.9 F) | 1.1 C (2.0 F) | 68 years | 33 of 100 (Routine) |
| 1 June 2026 | Walterboro 1 SW, US | daily low max (Tie) | 23.9 C (75.0 F) | tie | 60 years | 7 of 100 (Routine) |
| 28 April 2026 | Walterboro 1 SW, US | daily low max (Tie) | 18.3 C (64.9 F) | tie | 121 years | 10 of 100 (Routine) |
| 17 April 2026 | Walterboro 1 SW, US | daily high max | 32.8 C (91.0 F) | 0.6 C (1.1 F) | 105 years | 41 of 100 (Notable) |
| 21 February 2026 | Walterboro 1 SW, US | daily high max | 28.3 C (82.9 F) | 0.5 C (0.9 F) | 40 years | 22 of 100 (Routine) |
| 2 February 2026 | Walterboro 1 SW, US | daily low max | 3.9 C (39.0 F) | 0.5 C (0.9 F) | 46 years | 23 of 100 (Routine) |
| 1 February 2026 | Walterboro 1 SW, US | daily snowfall | 3.8 cm (1.5 in) | 3.8 cm (1.5 in) | 122 years | 20 of 100 (Routine) |
| 1 February 2026 | Walterboro 1 SW, US | daily snow depth | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 76 years | 20 of 100 (Routine) |
| 1 February 2026 | Walterboro 1 SW, US | daily low max | 1.7 C (35.1 F) | 1.6 C (2.9 F) | 46 years | 25 of 100 (Routine) |
| 14 January 2026 | Walterboro 1 SW, US | daily low min | -9.4 C (15.1 F) | 0.5 C (0.9 F) | 62 years | 28 of 100 (Routine) |
| 11 January 2026 | Walterboro 1 SW, US | daily high max | 27.2 C (81.0 F) | 0.5 C (0.9 F) | 110 years | 40 of 100 (Notable) |
| 10 December 2025 | Walterboro 1 SW, US | daily low max | 4.4 C (39.9 F) | 1.2 C (2.2 F) | 8 years | 14 of 100 (Routine) |
| 29 October 2025 | Walterboro 1 SW, US | daily low max | 13.9 C (57.0 F) | 0.5 C (0.9 F) | 115 years | 41 of 100 (Notable) |
| 13 October 2025 | Walterboro 1 SW, US | daily rain | 55.9 mm (2.2 in) | 10.9 mm (0.4 in) | 3 years | 15 of 100 (Routine) |
Climate Trend
70 complete years, 1904 to 2024| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1904 | 18.0 C | -0.26 C |
| 1905 | 18.7 C | +0.40 C |
| 1906 | 18.4 C | +0.10 C |
| 1907 | 19.2 C | +0.96 C |
| 1909 | 18.9 C | +0.62 C |
| 1910 | 18.7 C | +0.45 C |
| 1911 | 20.2 C | +1.95 C |
| 1912 | 18.9 C | +0.69 C |
| 1915 | 18.8 C | +0.56 C |
| 1937 | 18.4 C | +0.15 C |
| 1938 | 18.9 C | +0.64 C |
| 1939 | 18.9 C | +0.62 C |
| 1940 | 17.3 C | -0.96 C |
| 1941 | 18.5 C | +0.22 C |
| 1943 | 17.4 C | -0.81 C |
| 1944 | 19.6 C | +1.35 C |
| 1945 | 19.9 C | +1.66 C |
| 1946 | 20.4 C | +2.11 C |
| 1948 | 18.5 C | +0.24 C |
| 1952 | 18.8 C | +0.58 C |
| 1954 | 18.5 C | +0.24 C |
| 1956 | 18.9 C | +0.66 C |
| 1959 | 18.2 C | -0.05 C |
| 1960 | 17.8 C | -0.48 C |
| 1961 | 18.2 C | -0.07 C |
| 1962 | 17.9 C | -0.37 C |
| 1963 | 17.0 C | -1.21 C |
| 1964 | 17.5 C | -0.72 C |
| 1965 | 17.7 C | -0.60 C |
| 1966 | 16.0 C | -2.30 C |
| 1967 | 17.2 C | -1.10 C |
| 1968 | 17.1 C | -1.15 C |
| 1969 | 16.8 C | -1.49 C |
| 1970 | 17.8 C | -0.42 C |
| 1971 | 17.4 C | -0.84 C |
| 1972 | 18.1 C | -0.16 C |
| 1973 | 18.2 C | -0.03 C |
| 1975 | 18.9 C | +0.68 C |
| 1976 | 17.7 C | -0.60 C |
| 1977 | 18.5 C | +0.24 C |
| 1978 | 18.1 C | -0.16 C |
| 1979 | 18.0 C | -0.22 C |
| 1980 | 17.7 C | -0.58 C |
| 1981 | 17.6 C | -0.64 C |
| 1982 | 18.6 C | +0.30 C |
| 1983 | 17.7 C | -0.59 C |
| 1984 | 18.2 C | -0.04 C |
| 1985 | 18.9 C | +0.66 C |
| 1986 | 19.5 C | +1.24 C |
| 1987 | 18.1 C | -0.14 C |
| 1988 | 17.5 C | -0.79 C |
| 1990 | 19.7 C | +1.45 C |
| 2001 | 18.0 C | -0.28 C |
| 2002 | 18.5 C | +0.22 C |
| 2003 | 17.6 C | -0.67 C |
| 2006 | 18.1 C | -0.13 C |
| 2007 | 18.1 C | -0.20 C |
| 2008 | 17.8 C | -0.47 C |
| 2009 | 17.8 C | -0.41 C |
| 2010 | 17.5 C | -0.74 C |
| 2011 | 18.3 C | +0.07 C |
| 2012 | 18.4 C | +0.11 C |
| 2013 | 17.4 C | -0.82 C |
| 2014 | 17.9 C | -0.40 C |
| 2019 | 18.8 C | +0.55 C |
| 2020 | 18.7 C | +0.46 C |
| 2021 | 17.9 C | -0.32 C |
| 2022 | 18.0 C | -0.22 C |
| 2023 | 18.6 C | +0.30 C |
| 2024 | 19.2 C | +0.96 C |
The annual mean temperature here has fallen by 0.06 C (0.01 to 0.12) per decade over 1904 to 2024. In Fahrenheit: 0.11 F (0.01 to 0.21) per decade. The slope is a straight line fitted to 70 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.06 C (-0.11 to 0.00) per decade | -0.11 F (-0.21 to -0.01) per decade | 1904 to 2024 | 70 | Fall |
| Mean daily maximum | -0.09 C (-0.16 to -0.03) per decade | -0.17 F (-0.30 to -0.05) per decade | 1904 to 2024 | 70 | Fall |
| Mean daily minimum | -0.02 C (-0.08 to 0.03) per decade | -0.05 F (-0.15 to 0.05) per decade | 1904 to 2024 | 70 | 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
1903 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 41.7 C (107.1 F) | 1954 | 37.8 C (100.0 F) | 106 |
| Coldest night (TNn) | -17.8 C (0.0 F) | 1985 | -8.3 C (17.1 F) | 106 |
| Wettest day (Rx1day) | 253.7 mm (10.0 in) | 2016 | 79.8 mm (3.1 in) | 106 |
| Wettest five days (Rx5day) | 358.3 mm (14.1 in) | 2024 | 123.1 mm (4.8 in) | 106 |
| Longest dry spell (CDD) | 55 days | 1967 | 21 days | 106 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1903 | 36.7 C (98.1 F) |
| 1904 | 37.2 C (99.0 F) |
| 1905 | 37.8 C (100.0 F) |
| 1906 | 35.6 C (96.1 F) |
| 1907 | 38.3 C (100.9 F) |
| 1908 | 36.7 C (98.1 F) |
| 1909 | 36.7 C (98.1 F) |
| 1910 | 38.3 C (100.9 F) |
| 1911 | 41.1 C (106.0 F) |
| 1912 | 40.6 C (105.1 F) |
| 1913 | 36.1 C (97.0 F) |
| 1914 | 40.0 C (104.0 F) |
| 1915 | 38.3 C (100.9 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 37.8 C (100.0 F) |
| 1918 | 38.9 C (102.0 F) |
| 1919 | 37.2 C (99.0 F) |
| 1920 | 38.9 C (102.0 F) |
| 1936 | 23.3 C (73.9 F) |
| 1937 | 39.4 C (102.9 F) |
| 1938 | 38.9 C (102.0 F) |
| 1939 | 38.9 C (102.0 F) |
| 1940 | 38.9 C (102.0 F) |
| 1941 | 38.9 C (102.0 F) |
| 1942 | 39.4 C (102.9 F) |
| 1943 | 40.6 C (105.1 F) |
| 1944 | 40.6 C (105.1 F) |
| 1945 | 40.0 C (104.0 F) |
| 1946 | 37.8 C (100.0 F) |
| 1947 | 35.6 C (96.1 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 37.8 C (100.0 F) |
| 1950 | 39.4 C (102.9 F) |
| 1951 | 39.4 C (102.9 F) |
| 1952 | 41.1 C (106.0 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 41.7 C (107.1 F) |
| 1955 | 37.2 C (99.0 F) |
| 1956 | 37.8 C (100.0 F) |
| 1957 | 37.8 C (100.0 F) |
| 1958 | 37.2 C (99.0 F) |
| 1959 | 39.4 C (102.9 F) |
| 1960 | 36.7 C (98.1 F) |
| 1961 | 37.2 C (99.0 F) |
| 1962 | 38.3 C (100.9 F) |
| 1963 | 36.7 C (98.1 F) |
| 1964 | 37.2 C (99.0 F) |
| 1965 | 35.6 C (96.1 F) |
| 1966 | 37.2 C (99.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 38.3 C (100.9 F) |
| 1969 | 37.2 C (99.0 F) |
| 1970 | 38.3 C (100.9 F) |
| 1971 | 36.7 C (98.1 F) |
| 1972 | 36.7 C (98.1 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 38.3 C (100.9 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 37.8 C (100.0 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 39.4 C (102.9 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 38.3 C (100.9 F) |
| 1982 | 37.2 C (99.0 F) |
| 1983 | 40.0 C (104.0 F) |
| 1984 | 36.7 C (98.1 F) |
| 1985 | 38.3 C (100.9 F) |
| 1986 | 40.6 C (105.1 F) |
| 1987 | 37.2 C (99.0 F) |
| 1988 | 38.3 C (100.9 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 38.3 C (100.9 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 37.2 C (99.0 F) |
| 1993 | 38.9 C (102.0 F) |
| 1994 | 34.4 C (93.9 F) |
| 1996 | 21.7 C (71.1 F) |
| 1999 | 40.0 C (104.0 F) |
| 2000 | 38.9 C (102.0 F) |
| 2001 | 36.7 C (98.1 F) |
| 2002 | 38.3 C (100.9 F) |
| 2003 | 34.4 C (93.9 F) |
| 2004 | 37.2 C (99.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 37.8 C (100.0 F) |
| 2007 | 37.8 C (100.0 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 38.3 C (100.9 F) |
| 2010 | 38.3 C (100.9 F) |
| 2011 | 38.3 C (100.9 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 34.4 C (93.9 F) |
| 2014 | 36.7 C (98.1 F) |
| 2015 | 37.8 C (100.0 F) |
| 2016 | 36.1 C (97.0 F) |
| 2017 | 35.0 C (95.0 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 37.8 C (100.0 F) |
| 2020 | 36.1 C (97.0 F) |
| 2021 | 34.4 C (93.9 F) |
| 2022 | 36.1 C (97.0 F) |
| 2023 | 35.6 C (96.1 F) |
| 2024 | 36.7 C (98.1 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 38.9 C (102.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1903 | -7.8 C (18.0 F) |
| 1904 | -6.7 C (19.9 F) |
| 1905 | -10.0 C (14.0 F) |
| 1906 | -7.8 C (18.0 F) |
| 1907 | -6.7 C (19.9 F) |
| 1908 | -6.7 C (19.9 F) |
| 1909 | -9.4 C (15.1 F) |
| 1910 | -8.3 C (17.1 F) |
| 1911 | -6.1 C (21.0 F) |
| 1912 | -7.8 C (18.0 F) |
| 1913 | -1.7 C (28.9 F) |
| 1914 | -5.6 C (21.9 F) |
| 1915 | -6.7 C (19.9 F) |
| 1916 | -6.7 C (19.9 F) |
| 1917 | -12.2 C (10.0 F) |
| 1918 | -12.2 C (10.0 F) |
| 1919 | -8.9 C (16.0 F) |
| 1920 | -11.7 C (10.9 F) |
| 1936 | -2.8 C (27.0 F) |
| 1937 | -10.0 C (14.0 F) |
| 1938 | -8.9 C (16.0 F) |
| 1939 | -6.7 C (19.9 F) |
| 1940 | -11.1 C (12.0 F) |
| 1941 | -6.7 C (19.9 F) |
| 1942 | -10.0 C (14.0 F) |
| 1943 | -11.7 C (10.9 F) |
| 1944 | -6.1 C (21.0 F) |
| 1945 | -7.2 C (19.0 F) |
| 1946 | -5.6 C (21.9 F) |
| 1947 | -6.7 C (19.9 F) |
| 1948 | -10.0 C (14.0 F) |
| 1949 | -3.3 C (26.1 F) |
| 1950 | -10.0 C (14.0 F) |
| 1951 | -11.1 C (12.0 F) |
| 1952 | -7.2 C (19.0 F) |
| 1953 | -11.7 C (10.9 F) |
| 1954 | -11.7 C (10.9 F) |
| 1955 | -9.4 C (15.1 F) |
| 1956 | -7.8 C (18.0 F) |
| 1957 | -10.6 C (12.9 F) |
| 1958 | -11.1 C (12.0 F) |
| 1959 | -11.7 C (10.9 F) |
| 1960 | -10.0 C (14.0 F) |
| 1961 | -8.3 C (17.1 F) |
| 1962 | -15.0 C (5.0 F) |
| 1963 | -10.0 C (14.0 F) |
| 1964 | -11.1 C (12.0 F) |
| 1965 | -7.8 C (18.0 F) |
| 1966 | -13.3 C (8.1 F) |
| 1967 | -11.1 C (12.0 F) |
| 1968 | -8.9 C (16.0 F) |
| 1969 | -9.4 C (15.1 F) |
| 1970 | -13.9 C (7.0 F) |
| 1971 | -11.7 C (10.9 F) |
| 1972 | -7.8 C (18.0 F) |
| 1973 | -12.8 C (9.0 F) |
| 1974 | -4.4 C (24.1 F) |
| 1975 | -7.8 C (18.0 F) |
| 1976 | -10.0 C (14.0 F) |
| 1977 | -10.0 C (14.0 F) |
| 1978 | -8.9 C (16.0 F) |
| 1979 | -8.3 C (17.1 F) |
| 1980 | -9.4 C (15.1 F) |
| 1981 | -13.3 C (8.1 F) |
| 1982 | -13.3 C (8.1 F) |
| 1983 | -14.4 C (6.1 F) |
| 1984 | -7.8 C (18.0 F) |
| 1985 | -17.8 C (0.0 F) |
| 1986 | -11.7 C (10.9 F) |
| 1987 | -5.6 C (21.9 F) |
| 1988 | -7.2 C (19.0 F) |
| 1989 | -10.6 C (12.9 F) |
| 1990 | -5.0 C (23.0 F) |
| 1991 | -2.2 C (28.0 F) |
| 1992 | -5.0 C (23.0 F) |
| 1993 | -6.7 C (19.9 F) |
| 1994 | -8.9 C (16.0 F) |
| 1996 | -5.6 C (21.9 F) |
| 1999 | -5.6 C (21.9 F) |
| 2000 | -6.7 C (19.9 F) |
| 2001 | -8.9 C (16.0 F) |
| 2002 | -7.8 C (18.0 F) |
| 2003 | -8.9 C (16.0 F) |
| 2004 | -7.2 C (19.0 F) |
| 2005 | -9.4 C (15.1 F) |
| 2006 | -7.8 C (18.0 F) |
| 2007 | -5.6 C (21.9 F) |
| 2008 | -9.4 C (15.1 F) |
| 2009 | -7.8 C (18.0 F) |
| 2010 | -8.3 C (17.1 F) |
| 2011 | -7.8 C (18.0 F) |
| 2012 | -7.2 C (19.0 F) |
| 2013 | -4.4 C (24.1 F) |
| 2014 | -9.4 C (15.1 F) |
| 2015 | -6.7 C (19.9 F) |
| 2016 | -3.3 C (26.1 F) |
| 2017 | -5.6 C (21.9 F) |
| 2018 | -9.4 C (15.1 F) |
| 2019 | -3.3 C (26.1 F) |
| 2020 | -6.1 C (21.0 F) |
| 2021 | -3.9 C (25.0 F) |
| 2022 | -8.9 C (16.0 F) |
| 2023 | -3.3 C (26.1 F) |
| 2024 | -5.6 C (21.9 F) |
| 2025 | -6.7 C (19.9 F) |
| 2026 | -9.4 C (15.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1903 | 79.5 mm (3.1 in) |
| 1904 | 120.9 mm (4.8 in) |
| 1905 | 40.6 mm (1.6 in) |
| 1906 | 84.6 mm (3.3 in) |
| 1907 | 82.6 mm (3.3 in) |
| 1908 | 66.3 mm (2.6 in) |
| 1909 | 111.8 mm (4.4 in) |
| 1910 | 98.0 mm (3.9 in) |
| 1911 | 76.2 mm (3.0 in) |
| 1912 | 85.1 mm (3.4 in) |
| 1913 | 43.4 mm (1.7 in) |
| 1914 | 67.3 mm (2.6 in) |
| 1915 | 84.1 mm (3.3 in) |
| 1916 | 58.2 mm (2.3 in) |
| 1917 | 58.2 mm (2.3 in) |
| 1918 | 76.2 mm (3.0 in) |
| 1919 | 90.7 mm (3.6 in) |
| 1920 | 83.8 mm (3.3 in) |
| 1936 | 27.4 mm (1.1 in) |
| 1937 | 64.3 mm (2.5 in) |
| 1938 | 95.3 mm (3.8 in) |
| 1939 | 53.6 mm (2.1 in) |
| 1940 | 88.6 mm (3.5 in) |
| 1941 | 142.7 mm (5.6 in) |
| 1942 | 161.3 mm (6.4 in) |
| 1943 | 102.9 mm (4.1 in) |
| 1944 | 100.8 mm (4.0 in) |
| 1945 | 172.7 mm (6.8 in) |
| 1946 | 76.2 mm (3.0 in) |
| 1947 | 121.9 mm (4.8 in) |
| 1948 | 69.3 mm (2.7 in) |
| 1949 | 152.4 mm (6.0 in) |
| 1950 | 68.1 mm (2.7 in) |
| 1951 | 67.3 mm (2.6 in) |
| 1952 | 53.3 mm (2.1 in) |
| 1953 | 43.4 mm (1.7 in) |
| 1954 | 90.7 mm (3.6 in) |
| 1955 | 53.3 mm (2.1 in) |
| 1956 | 118.1 mm (4.6 in) |
| 1957 | 47.0 mm (1.9 in) |
| 1958 | 63.5 mm (2.5 in) |
| 1959 | 185.4 mm (7.3 in) |
| 1960 | 91.9 mm (3.6 in) |
| 1961 | 135.9 mm (5.4 in) |
| 1962 | 106.7 mm (4.2 in) |
| 1963 | 67.3 mm (2.6 in) |
| 1964 | 90.9 mm (3.6 in) |
| 1965 | 96.5 mm (3.8 in) |
| 1966 | 85.1 mm (3.4 in) |
| 1967 | 147.8 mm (5.8 in) |
| 1968 | 101.1 mm (4.0 in) |
| 1969 | 130.8 mm (5.1 in) |
| 1970 | 54.6 mm (2.1 in) |
| 1971 | 72.4 mm (2.9 in) |
| 1972 | 95.0 mm (3.7 in) |
| 1973 | 52.1 mm (2.1 in) |
| 1974 | 51.3 mm (2.0 in) |
| 1975 | 70.4 mm (2.8 in) |
| 1976 | 96.5 mm (3.8 in) |
| 1977 | 68.8 mm (2.7 in) |
| 1978 | 86.4 mm (3.4 in) |
| 1979 | 121.9 mm (4.8 in) |
| 1980 | 74.4 mm (2.9 in) |
| 1981 | 53.3 mm (2.1 in) |
| 1982 | 50.8 mm (2.0 in) |
| 1983 | 144.8 mm (5.7 in) |
| 1984 | 52.1 mm (2.1 in) |
| 1985 | 50.8 mm (2.0 in) |
| 1986 | 53.3 mm (2.1 in) |
| 1987 | 60.2 mm (2.4 in) |
| 1988 | 86.4 mm (3.4 in) |
| 1989 | 53.3 mm (2.1 in) |
| 1990 | 63.5 mm (2.5 in) |
| 1991 | 53.3 mm (2.1 in) |
| 1992 | 69.3 mm (2.7 in) |
| 1993 | 67.3 mm (2.6 in) |
| 1994 | 72.4 mm (2.9 in) |
| 1996 | 23.1 mm (0.9 in) |
| 1999 | 80.0 mm (3.1 in) |
| 2000 | 51.3 mm (2.0 in) |
| 2001 | 53.3 mm (2.1 in) |
| 2002 | 117.3 mm (4.6 in) |
| 2003 | 83.6 mm (3.3 in) |
| 2004 | 86.4 mm (3.4 in) |
| 2005 | 48.8 mm (1.9 in) |
| 2006 | 76.2 mm (3.0 in) |
| 2007 | 49.5 mm (1.9 in) |
| 2008 | 95.3 mm (3.8 in) |
| 2009 | 76.2 mm (3.0 in) |
| 2010 | 167.6 mm (6.6 in) |
| 2011 | 77.5 mm (3.1 in) |
| 2012 | 58.4 mm (2.3 in) |
| 2013 | 92.7 mm (3.6 in) |
| 2014 | 61.0 mm (2.4 in) |
| 2015 | 164.3 mm (6.5 in) |
| 2016 | 253.7 mm (10.0 in) |
| 2017 | 120.7 mm (4.8 in) |
| 2018 | 73.7 mm (2.9 in) |
| 2019 | 55.4 mm (2.2 in) |
| 2020 | 85.6 mm (3.4 in) |
| 2021 | 152.4 mm (6.0 in) |
| 2022 | 91.4 mm (3.6 in) |
| 2023 | 101.6 mm (4.0 in) |
| 2024 | 203.7 mm (8.0 in) |
| 2025 | 106.7 mm (4.2 in) |
| 2026 | 100.3 mm (3.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1903 | 140.6 mm (5.5 in) |
| 1904 | 127.8 mm (5.0 in) |
| 1905 | 93.4 mm (3.7 in) |
| 1906 | 201.9 mm (7.9 in) |
| 1907 | 117.2 mm (4.6 in) |
| 1908 | 117.5 mm (4.6 in) |
| 1909 | 119.9 mm (4.7 in) |
| 1910 | 121.1 mm (4.8 in) |
| 1911 | 132.1 mm (5.2 in) |
| 1912 | 99.1 mm (3.9 in) |
| 1913 | 72.8 mm (2.9 in) |
| 1914 | 109.7 mm (4.3 in) |
| 1915 | 143.8 mm (5.7 in) |
| 1916 | 78.8 mm (3.1 in) |
| 1917 | 124.2 mm (4.9 in) |
| 1918 | 77.2 mm (3.0 in) |
| 1919 | 122.7 mm (4.8 in) |
| 1920 | 129.8 mm (5.1 in) |
| 1936 | 50.5 mm (2.0 in) |
| 1937 | 104.6 mm (4.1 in) |
| 1938 | 109.0 mm (4.3 in) |
| 1939 | 130.7 mm (5.1 in) |
| 1940 | 184.1 mm (7.2 in) |
| 1941 | 210.6 mm (8.3 in) |
| 1942 | 178.1 mm (7.0 in) |
| 1943 | 114.3 mm (4.5 in) |
| 1944 | 139.7 mm (5.5 in) |
| 1945 | 271.8 mm (10.7 in) |
| 1946 | 104.9 mm (4.1 in) |
| 1947 | 124.5 mm (4.9 in) |
| 1948 | 103.7 mm (4.1 in) |
| 1949 | 91.4 mm (3.6 in) |
| 1950 | 122.2 mm (4.8 in) |
| 1951 | 110.0 mm (4.3 in) |
| 1952 | 71.4 mm (2.8 in) |
| 1953 | 85.6 mm (3.4 in) |
| 1954 | 104.2 mm (4.1 in) |
| 1955 | 129.2 mm (5.1 in) |
| 1956 | 124.5 mm (4.9 in) |
| 1957 | 89.7 mm (3.5 in) |
| 1958 | 141.2 mm (5.6 in) |
| 1959 | 293.1 mm (11.5 in) |
| 1960 | 112.7 mm (4.4 in) |
| 1961 | 173.7 mm (6.8 in) |
| 1962 | 142.8 mm (5.6 in) |
| 1963 | 162.1 mm (6.4 in) |
| 1964 | 312.9 mm (12.3 in) |
| 1965 | 125.2 mm (4.9 in) |
| 1966 | 120.4 mm (4.7 in) |
| 1967 | 158.2 mm (6.2 in) |
| 1968 | 195.2 mm (7.7 in) |
| 1969 | 211.8 mm (8.3 in) |
| 1970 | 88.3 mm (3.5 in) |
| 1971 | 133.1 mm (5.2 in) |
| 1972 | 122.0 mm (4.8 in) |
| 1973 | 129.3 mm (5.1 in) |
| 1974 | 106.3 mm (4.2 in) |
| 1975 | 106.9 mm (4.2 in) |
| 1976 | 131.0 mm (5.2 in) |
| 1977 | 134.9 mm (5.3 in) |
| 1978 | 93.8 mm (3.7 in) |
| 1979 | 208.0 mm (8.2 in) |
| 1980 | 135.4 mm (5.3 in) |
| 1981 | 118.1 mm (4.6 in) |
| 1982 | 117.6 mm (4.6 in) |
| 1983 | 186.7 mm (7.4 in) |
| 1984 | 75.5 mm (3.0 in) |
| 1985 | 90.2 mm (3.6 in) |
| 1986 | 83.9 mm (3.3 in) |
| 1987 | 127.6 mm (5.0 in) |
| 1988 | 127.6 mm (5.0 in) |
| 1989 | 103.5 mm (4.1 in) |
| 1990 | 142.2 mm (5.6 in) |
| 1991 | 74.6 mm (2.9 in) |
| 1992 | 101.9 mm (4.0 in) |
| 1993 | 84.6 mm (3.3 in) |
| 1994 | 72.4 mm (2.9 in) |
| 1996 | 35.0 mm (1.4 in) |
| 1999 | 95.2 mm (3.7 in) |
| 2000 | 123.4 mm (4.9 in) |
| 2001 | 108.7 mm (4.3 in) |
| 2002 | 197.0 mm (7.8 in) |
| 2003 | 129.6 mm (5.1 in) |
| 2004 | 118.6 mm (4.7 in) |
| 2005 | 90.7 mm (3.6 in) |
| 2006 | 104.9 mm (4.1 in) |
| 2007 | 86.1 mm (3.4 in) |
| 2008 | 126.9 mm (5.0 in) |
| 2009 | 96.5 mm (3.8 in) |
| 2010 | 171.4 mm (6.7 in) |
| 2011 | 137.7 mm (5.4 in) |
| 2012 | 139.0 mm (5.5 in) |
| 2013 | 182.9 mm (7.2 in) |
| 2014 | 119.4 mm (4.7 in) |
| 2015 | 228.8 mm (9.0 in) |
| 2016 | 259.0 mm (10.2 in) |
| 2017 | 171.2 mm (6.7 in) |
| 2018 | 118.2 mm (4.7 in) |
| 2019 | 93.4 mm (3.7 in) |
| 2020 | 128.2 mm (5.0 in) |
| 2021 | 169.4 mm (6.7 in) |
| 2022 | 184.3 mm (7.3 in) |
| 2023 | 103.6 mm (4.1 in) |
| 2024 | 358.3 mm (14.1 in) |
| 2025 | 152.9 mm (6.0 in) |
| 2026 | 158.0 mm (6.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1903 | 20 days |
| 1904 | 12 days |
| 1905 | 19 days |
| 1906 | 24 days |
| 1907 | 17 days |
| 1908 | 19 days |
| 1909 | 23 days |
| 1910 | 25 days |
| 1911 | 21 days |
| 1912 | 20 days |
| 1913 | 36 days |
| 1914 | 16 days |
| 1915 | 24 days |
| 1916 | 22 days |
| 1917 | 18 days |
| 1918 | 20 days |
| 1919 | 29 days |
| 1920 | 16 days |
| 1936 | 11 days |
| 1937 | 14 days |
| 1938 | 14 days |
| 1939 | 29 days |
| 1940 | 25 days |
| 1941 | 26 days |
| 1942 | 32 days |
| 1943 | 43 days |
| 1944 | 30 days |
| 1945 | 17 days |
| 1946 | 16 days |
| 1947 | 28 days |
| 1948 | 19 days |
| 1949 | 18 days |
| 1950 | 18 days |
| 1951 | 33 days |
| 1952 | 30 days |
| 1953 | 35 days |
| 1954 | 17 days |
| 1955 | 36 days |
| 1956 | 21 days |
| 1957 | 15 days |
| 1958 | 17 days |
| 1959 | 16 days |
| 1960 | 22 days |
| 1961 | 50 days |
| 1962 | 20 days |
| 1963 | 24 days |
| 1964 | 38 days |
| 1965 | 20 days |
| 1966 | 32 days |
| 1967 | 55 days |
| 1968 | 21 days |
| 1969 | 20 days |
| 1970 | 30 days |
| 1971 | 22 days |
| 1972 | 31 days |
| 1973 | 19 days |
| 1974 | 19 days |
| 1975 | 24 days |
| 1976 | 39 days |
| 1977 | 25 days |
| 1978 | 24 days |
| 1979 | 17 days |
| 1980 | 22 days |
| 1981 | 23 days |
| 1982 | 13 days |
| 1983 | 19 days |
| 1984 | 20 days |
| 1985 | 19 days |
| 1986 | 28 days |
| 1987 | 27 days |
| 1988 | 17 days |
| 1989 | 21 days |
| 1990 | 27 days |
| 1991 | 17 days |
| 1992 | 23 days |
| 1993 | 13 days |
| 1994 | 29 days |
| 1996 | 6 days |
| 1999 | 15 days |
| 2000 | 34 days |
| 2001 | 39 days |
| 2002 | 13 days |
| 2003 | 15 days |
| 2004 | 15 days |
| 2005 | 26 days |
| 2006 | 18 days |
| 2007 | 29 days |
| 2008 | 19 days |
| 2009 | 21 days |
| 2010 | 26 days |
| 2011 | 27 days |
| 2012 | 16 days |
| 2013 | 13 days |
| 2014 | 17 days |
| 2015 | 15 days |
| 2016 | 50 days |
| 2017 | 20 days |
| 2018 | 18 days |
| 2019 | 22 days |
| 2020 | 20 days |
| 2021 | 23 days |
| 2022 | 23 days |
| 2023 | 16 days |
| 2024 | 32 days |
| 2025 | 22 days |
| 2026 | 39 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
70 years with a frostAcross 70 years with a frost, the median last spring frost at Walterboro 1 SW falls on 22 March and the median first autumn frost on 9 November, which leaves a median of 228 days between them.
In 1978 to 2024 the median growing season was 238 days. That is 15 days more than in 1904 to 1966.
Fitted over all years, the growing season changes by +0.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1904 to 1966) | Recent period (1978 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 22 March | 24 March | 21 March | 3 days earlier | -0.4 days per decade |
| First autumn frost | 9 November | 7 November | 12 November | 5 days later | +0.1 days per decade |
| Growing days | 228 days | 223 days | 238 days | 15 days more | +0.5 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
82 years, 1904 to 2025A day with at least 82.5 mm (3.2 in) of rain is expected about once in 2 years. A day with at least 243.4 mm (9.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 82.5 mm (3.2 in) | |
| 5 years | 116.6 mm (4.6 in) | |
| 10 years | 142.4 mm (5.6 in) | |
| 25 years | 179.2 mm (7.1 in) | |
| 50 years | 209.8 mm (8.3 in) | |
| 100 years | 243.4 mm (9.6 in) | Longer than the 82 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, 82 years of values from 1904 to 2025.
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: 253.7 mm (10.0 in) in 2016; 203.7 mm (8.0 in) in 2024; 185.4 mm (7.3 in) in 1959.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2006 to 2024 against 1961 to 1990Over 2006 to 2024, Walterboro 1 SW had a mean temperature of 18.2 C (64.7 F) and 1,292.7 mm (50.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Eufaula Wildlife Ref (United States, 425 km away), Marshallville (United States, 309 km away) and Albany 3 SE (United States, 360 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Eufaula Wildlife Ref | United States | 425 km (264 mi) | 18.0 C (64.3 F) | 1,256.2 mm (49.5 in) | 0.51 |
| Marshallville | United States | 309 km (192 mi) | 18.2 C (64.8 F) | 1,222.0 mm (48.1 in) | 0.57 |
| Albany 3 SE | United States | 360 km (224 mi) | 18.3 C (65.0 F) | 1,296.6 mm (51.0 in) | 0.59 |
Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.
Download the Data
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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).