Riverside 7 SSW Weather Records (USC00357208)
Record envelope, standing records and threshold days for Riverside 7 SSW (USC00357208), Oregon, United States, with 116 years of record.
Key Facts for Riverside 7 SSW
- Riverside 7 SSW (USC00357208) is a weather station in Oregon, United States at 43.45 latitude and -118.22 longitude, 1,030 m (3,380 ft) above sea level.
- The station reports from 1897 to 2012, 116 years of record.
- 1,464 records set at Riverside 7 SSW still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Riverside 7 SSW set a daily record low maximum temperature of 6.7 C (44.1 F) on 24 October 2012.
About the Station
- Location: Oregon, United States, 43.45 latitude, -118.22 longitude.
- Elevation: 1,030 m (3,380 ft).
- Period of record: 1897 to 2012, 116 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 18.3 C (64.9 F) | -42.2 C (-44.0 F) | n/a | n/a |
| Feb | 21.7 C (71.1 F) | -37.8 C (-36.0 F) | n/a | n/a |
| Mar | 25.6 C (78.1 F) | -24.4 C (-11.9 F) | n/a | n/a |
| Apr | 33.3 C (91.9 F) | -13.3 C (8.1 F) | n/a | n/a |
| May | 38.9 C (102.0 F) | -12.2 C (10.0 F) | n/a | n/a |
| Jun | 41.1 C (106.0 F) | -6.7 C (19.9 F) | n/a | n/a |
| Jul | 43.9 C (111.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Aug | 42.2 C (108.0 F) | -8.9 C (16.0 F) | n/a | n/a |
| Sep | 37.8 C (100.0 F) | -12.2 C (10.0 F) | n/a | n/a |
| Oct | 33.9 C (93.0 F) | -20.0 C (-4.0 F) | n/a | n/a |
| Nov | 27.8 C (82.0 F) | -22.8 C (-9.0 F) | n/a | n/a |
| Dec | 20.0 C (68.0 F) | -47.2 C (-53.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1897 | 15 |
| 1898 | 24 |
| 1899 | 68 |
| 1900 | 6 |
| 1901 | 19 |
| 1902 | 12 |
| 1903 | 12 |
| 1904 | 21 |
| 1905 | 28 |
| 1906 | 27 |
| 1907 | 12 |
| 1908 | 16 |
| 1909 | 15 |
| 1910 | 28 |
| 1911 | 22 |
| 1912 | 15 |
| 1913 | 32 |
| 1914 | 6 |
| 1915 | 13 |
| 1916 | 19 |
| 1917 | 25 |
| 1918 | 25 |
| 1919 | 19 |
| 1920 | 13 |
| 1921 | 10 |
| 1922 | 32 |
| 1923 | 8 |
| 1924 | 10 |
| 1925 | 11 |
| 1926 | 13 |
| 1927 | 22 |
| 1928 | 19 |
| 1929 | 21 |
| 1930 | 20 |
| 1931 | 17 |
| 1932 | 19 |
| 1933 | 31 |
| 1934 | 23 |
| 1935 | 17 |
| 1936 | 25 |
| 1937 | 15 |
| 1938 | 10 |
| 1939 | 13 |
| 1940 | 14 |
| 1941 | 8 |
| 1942 | 8 |
| 1943 | 1 |
| 1966 | 4 |
| 1967 | 26 |
| 1968 | 12 |
| 1969 | 12 |
| 1970 | 11 |
| 1971 | 20 |
| 1972 | 25 |
| 1973 | 9 |
| 1974 | 16 |
| 1975 | 21 |
| 1976 | 13 |
| 1977 | 16 |
| 1978 | 13 |
| 1979 | 15 |
| 1980 | 13 |
| 1981 | 8 |
| 1982 | 6 |
| 1983 | 10 |
| 1984 | 9 |
| 1985 | 25 |
| 1986 | 15 |
| 1987 | 14 |
| 1988 | 10 |
| 1989 | 10 |
| 1990 | 27 |
| 1991 | 2 |
| 1992 | 12 |
| 1993 | 33 |
| 1994 | 10 |
| 1995 | 27 |
| 1996 | 24 |
| 1997 | 14 |
| 1998 | 5 |
| 1999 | 15 |
| 2000 | 4 |
| 2001 | 4 |
| 2002 | 13 |
| 2003 | 10 |
| 2004 | 7 |
| 2005 | 7 |
| 2006 | 7 |
| 2007 | 10 |
| 2008 | 16 |
| 2009 | 7 |
| 2010 | 6 |
| 2011 | 5 |
| 2012 | 7 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 1999-02-02 | Record snow depth | Record snow depth 63.5 cm (25.0 in) |
| 1999-02-09 | Record snow depth | Record snow depth 71.1 cm (28.0 in) |
Wettest Day of Each Month
May: 48.3 mm (1.9 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 35.3 mm (1.4 in) | 20 January 1969 |
| Feb | 30.5 mm (1.2 in) | 2 February 1907 |
| Mar | 27.9 mm (1.1 in) | 11 March 1906 |
| Apr | 44.5 mm (1.8 in) | 27 April 1932 |
| May | 48.3 mm (1.9 in) | 26 May 1905 |
| Jun | 27.4 mm (1.1 in) | 6 June 2009 |
| Jul | 47.0 mm (1.9 in) | 23 July 1913 |
| Aug | 25.7 mm (1.0 in) | 21 August 1983 |
| Sep | 30.5 mm (1.2 in) | 17 September 1919 |
| Oct | 37.1 mm (1.5 in) | 6 October 1925 |
| Nov | 24.1 mm (0.9 in) | 13 November 1903 |
| Dec | 30.5 mm (1.2 in) | 15 December 1899 |
Period of Record Coverage
1897 to 2012| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1897 | 204 | 56% | No |
| 1898 | 336 | 92% | Yes |
| 1899 | 345 | 95% | Yes |
| 1900 | 309 | 85% | No |
| 1901 | 332 | 91% | Yes |
| 1902 | 267 | 73% | No |
| 1903 | 149 | 41% | No |
| 1904 | 355 | 97% | Yes |
| 1905 | 339 | 93% | Yes |
| 1906 | 266 | 73% | No |
| 1907 | 285 | 78% | No |
| 1908 | 287 | 78% | No |
| 1909 | 159 | 44% | No |
| 1910 | 260 | 71% | No |
| 1911 | 327 | 90% | No |
| 1912 | 343 | 94% | Yes |
| 1913 | 341 | 93% | Yes |
| 1914 | 315 | 86% | No |
| 1915 | 359 | 98% | Yes |
| 1916 | 356 | 97% | Yes |
| 1917 | 306 | 84% | No |
| 1918 | 344 | 94% | Yes |
| 1919 | 350 | 96% | Yes |
| 1920 | 363 | 99% | Yes |
| 1921 | 364 | 100% | Yes |
| 1922 | 300 | 82% | No |
| 1923 | 349 | 96% | Yes |
| 1924 | 346 | 95% | Yes |
| 1925 | 300 | 82% | No |
| 1926 | 264 | 72% | No |
| 1927 | 346 | 95% | Yes |
| 1928 | 328 | 90% | No |
| 1929 | 354 | 97% | Yes |
| 1930 | 363 | 99% | Yes |
| 1931 | 346 | 95% | Yes |
| 1932 | 361 | 99% | Yes |
| 1933 | 332 | 91% | Yes |
| 1934 | 305 | 84% | No |
| 1935 | 359 | 98% | Yes |
| 1936 | 362 | 99% | Yes |
| 1937 | 285 | 78% | No |
| 1938 | 342 | 94% | Yes |
| 1939 | 349 | 96% | Yes |
| 1940 | 353 | 96% | Yes |
| 1941 | 312 | 85% | No |
| 1942 | 349 | 96% | Yes |
| 1943 | 53 | 15% | No |
| 1966 | 80 | 22% | No |
| 1967 | 353 | 97% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 357 | 98% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 361 | 99% | Yes |
| 1973 | 361 | 99% | Yes |
| 1974 | 360 | 99% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 361 | 99% | Yes |
| 1977 | 352 | 96% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 359 | 98% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 360 | 99% | Yes |
| 1983 | 354 | 97% | Yes |
| 1984 | 335 | 92% | Yes |
| 1985 | 357 | 98% | Yes |
| 1986 | 359 | 98% | Yes |
| 1987 | 360 | 99% | Yes |
| 1988 | 361 | 99% | Yes |
| 1989 | 363 | 99% | Yes |
| 1990 | 360 | 99% | Yes |
| 1991 | 224 | 61% | No |
| 1992 | 226 | 62% | No |
| 1993 | 346 | 95% | Yes |
| 1994 | 340 | 93% | Yes |
| 1995 | 350 | 96% | Yes |
| 1996 | 346 | 95% | Yes |
| 1997 | 337 | 92% | Yes |
| 1998 | 226 | 62% | No |
| 1999 | 307 | 84% | No |
| 2000 | 304 | 83% | No |
| 2001 | 310 | 85% | No |
| 2002 | 307 | 84% | No |
| 2003 | 296 | 81% | No |
| 2004 | 307 | 84% | No |
| 2005 | 304 | 83% | No |
| 2006 | 274 | 75% | No |
| 2007 | 279 | 76% | No |
| 2008 | 282 | 77% | No |
| 2009 | 275 | 75% | No |
| 2010 | 258 | 71% | No |
| 2011 | 217 | 59% | No |
| 2012 | 190 | 52% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 October 2012 | Riverside 7 SSW, US | daily low max | 6.7 C (44.1 F) | 0.5 C (0.9 F) | 77 years | 33 of 100 (Routine) |
| 2 September 2012 | Riverside 7 SSW, US | daily low min (Tie) | -2.2 C (28.0 F) | tie | 82 years | 8 of 100 (Routine) |
| 28 June 2012 | Riverside 7 SSW, US | daily low min | 0.6 C (33.1 F) | 0.5 C (0.9 F) | 100 years | 41 of 100 (Notable) |
| 7 June 2012 | Riverside 7 SSW, US | daily low min | -2.2 C (28.0 F) | 0.5 C (0.9 F) | 106 years | 41 of 100 (Notable) |
| 6 June 2012 | Riverside 7 SSW, US | daily low min (Tie) | -2.2 C (28.0 F) | tie | 101 years | 10 of 100 (Routine) |
| 4 May 2012 | Riverside 7 SSW, US | daily rain | 24.6 mm (1.0 in) | 15.7 mm (0.6 in) | 70 years | 20 of 100 (Routine) |
| 23 April 2012 | Riverside 7 SSW, US | daily high max (Tie) | 31.1 C (88.0 F) | tie | 102 years | 10 of 100 (Routine) |
| 7 April 2012 | Riverside 7 SSW, US | daily low min | -11.1 C (12.0 F) | 1.7 C (3.1 F) | 73 years | 35 of 100 (Notable) |
| 7 March 2012 | Riverside 7 SSW, US | daily low min | -12.8 C (9.0 F) | 1.1 C (2.0 F) | 27 years | 20 of 100 (Routine) |
| 30 January 2012 | Riverside 7 SSW, US | daily high min | 3.9 C (39.0 F) | 1.7 C (3.1 F) | 112 years | 42 of 100 (Notable) |
| 21 January 2012 | Riverside 7 SSW, US | daily rain | 12.2 mm (0.5 in) | 0.8 mm (0.03 in) | 44 years | 20 of 100 (Routine) |
| 19 January 2012 | Riverside 7 SSW, US | daily high min | 3.3 C (37.9 F) | 1.1 C (2.0 F) | 40 years | 23 of 100 (Routine) |
| 5 October 2011 | Riverside 7 SSW, US | daily rain | 14.0 mm (0.6 in) | 7.6 mm (0.30 in) | 92 years | 20 of 100 (Routine) |
| 4 September 2011 | Riverside 7 SSW, US | daily low min (Tie) | -2.2 C (28.0 F) | tie | 111 years | 10 of 100 (Routine) |
| 26 August 2011 | Riverside 7 SSW, US | monthly high min | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 40 years | 35 of 100 (Notable) |
| 25 August 2011 | Riverside 7 SSW, US | daily high min | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 22 years | 19 of 100 (Routine) |
| 23 July 2011 | Riverside 7 SSW, US | daily low min (Tie) | 2.8 C (37.0 F) | tie | 112 years | 10 of 100 (Routine) |
| 21 July 2011 | Riverside 7 SSW, US | daily low min (Tie) | 3.9 C (39.0 F) | tie | 111 years | 10 of 100 (Routine) |
| 17 June 2011 | Riverside 7 SSW, US | daily low min (Tie) | -1.1 C (30.0 F) | tie | 72 years | 7 of 100 (Routine) |
| 12 May 2011 | Riverside 7 SSW, US | daily rain | 15.7 mm (0.6 in) | 7.8 mm (0.31 in) | 76 years | 20 of 100 (Routine) |
Climate Trend
44 complete years, 1901 to 2005| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1901 | 9.5 C | +0.48 C |
| 1915 | 10.0 C | +0.96 C |
| 1916 | 8.0 C | -1.04 C |
| 1920 | 8.8 C | -0.30 C |
| 1921 | 8.5 C | -0.60 C |
| 1923 | 8.2 C | -0.83 C |
| 1924 | 7.6 C | -1.45 C |
| 1927 | 9.0 C | -0.04 C |
| 1929 | 8.2 C | -0.83 C |
| 1930 | 8.5 C | -0.53 C |
| 1931 | 8.8 C | -0.29 C |
| 1932 | 8.0 C | -1.04 C |
| 1935 | 8.1 C | -0.97 C |
| 1936 | 9.2 C | +0.16 C |
| 1938 | 9.5 C | +0.39 C |
| 1967 | 10.5 C | +1.48 C |
| 1968 | 10.1 C | +1.03 C |
| 1969 | 9.6 C | +0.52 C |
| 1970 | 9.5 C | +0.41 C |
| 1971 | 9.3 C | +0.22 C |
| 1972 | 9.4 C | +0.30 C |
| 1973 | 9.9 C | +0.84 C |
| 1974 | 9.6 C | +0.53 C |
| 1975 | 8.9 C | -0.21 C |
| 1976 | 8.9 C | -0.18 C |
| 1977 | 9.7 C | +0.61 C |
| 1978 | 9.0 C | -0.04 C |
| 1979 | 9.3 C | +0.19 C |
| 1980 | 9.4 C | +0.35 C |
| 1981 | 9.8 C | +0.75 C |
| 1982 | 8.1 C | -0.95 C |
| 1983 | 9.4 C | +0.37 C |
| 1985 | 7.5 C | -1.60 C |
| 1986 | 9.9 C | +0.79 C |
| 1987 | 9.8 C | +0.69 C |
| 1988 | 9.9 C | +0.84 C |
| 1989 | 9.0 C | -0.11 C |
| 1990 | 10.3 C | +1.23 C |
| 1993 | 7.0 C | -2.08 C |
| 1994 | 9.2 C | +0.17 C |
| 1995 | 9.3 C | +0.23 C |
| 1996 | 9.2 C | +0.13 C |
| 1997 | 8.9 C | -0.15 C |
| 2005 | 8.8 C | -0.27 C |
The fitted trend in annual mean temperature here over 1901 to 2005 is 0.07 C (-0.01 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.12 F (-0.03 to 0.27) per decade. The slope is a straight line fitted to 44 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.07 C (-0.01 to 0.15) per decade | 0.12 F (-0.03 to 0.27) per decade | 1901 to 2005 | 44 | Not clearly different from zero |
| Mean daily maximum | -0.04 C (-0.13 to 0.06) per decade | -0.1 F (-0.2 to 0.1) per decade | 1901 to 2005 | 44 | Not clearly different from zero |
| Mean daily minimum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1901 to 2005 | 44 | Rise |
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
1897 to 2012| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.9 C (111.0 F) | 1905 | 39.4 C (102.9 F) | 94 |
| Coldest night (TNn) | -47.2 C (-53.0 F) | 1924 | -23.3 C (-9.9 F) | 94 |
| Wettest day (Rx1day) | 48.3 mm (1.9 in) | 1905 | 18.7 mm (0.7 in) | 94 |
| Wettest five days (Rx5day) | 109.3 mm (4.3 in) | 1913 | 30.9 mm (1.2 in) | 94 |
| Longest dry spell (CDD) | 127 days | 1931 | 50 days | 94 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1897 | 40.0 C (104.0 F) |
| 1898 | 41.1 C (106.0 F) |
| 1899 | 41.1 C (106.0 F) |
| 1900 | 40.0 C (104.0 F) |
| 1901 | 42.2 C (108.0 F) |
| 1902 | 40.6 C (105.1 F) |
| 1903 | 37.8 C (100.0 F) |
| 1904 | 40.0 C (104.0 F) |
| 1905 | 43.9 C (111.0 F) |
| 1906 | 41.7 C (107.1 F) |
| 1907 | 41.7 C (107.1 F) |
| 1908 | 37.8 C (100.0 F) |
| 1909 | 38.9 C (102.0 F) |
| 1910 | 40.6 C (105.1 F) |
| 1911 | 39.4 C (102.9 F) |
| 1912 | 40.6 C (105.1 F) |
| 1913 | 38.3 C (100.9 F) |
| 1914 | 40.0 C (104.0 F) |
| 1915 | 38.9 C (102.0 F) |
| 1916 | 37.8 C (100.0 F) |
| 1917 | 38.3 C (100.9 F) |
| 1918 | 38.9 C (102.0 F) |
| 1919 | 41.1 C (106.0 F) |
| 1920 | 42.2 C (108.0 F) |
| 1921 | 37.8 C (100.0 F) |
| 1922 | 38.9 C (102.0 F) |
| 1923 | 40.0 C (104.0 F) |
| 1924 | 37.8 C (100.0 F) |
| 1925 | 41.1 C (106.0 F) |
| 1926 | 37.8 C (100.0 F) |
| 1927 | 38.3 C (100.9 F) |
| 1928 | 42.2 C (108.0 F) |
| 1929 | 40.6 C (105.1 F) |
| 1930 | 40.6 C (105.1 F) |
| 1931 | 43.3 C (109.9 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 41.1 C (106.0 F) |
| 1934 | 43.3 C (109.9 F) |
| 1935 | 41.1 C (106.0 F) |
| 1936 | 42.8 C (109.0 F) |
| 1937 | 40.6 C (105.1 F) |
| 1938 | 38.9 C (102.0 F) |
| 1939 | 41.1 C (106.0 F) |
| 1940 | 41.1 C (106.0 F) |
| 1941 | 37.8 C (100.0 F) |
| 1942 | 40.0 C (104.0 F) |
| 1943 | 22.2 C (72.0 F) |
| 1966 | 26.7 C (80.1 F) |
| 1967 | 42.2 C (108.0 F) |
| 1968 | 40.6 C (105.1 F) |
| 1969 | 40.0 C (104.0 F) |
| 1970 | 37.2 C (99.0 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 37.8 C (100.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 37.8 C (100.0 F) |
| 1975 | 37.8 C (100.0 F) |
| 1976 | 36.1 C (97.0 F) |
| 1977 | 40.6 C (105.1 F) |
| 1978 | 38.9 C (102.0 F) |
| 1979 | 40.6 C (105.1 F) |
| 1980 | 39.4 C (102.9 F) |
| 1981 | 40.0 C (104.0 F) |
| 1982 | 37.8 C (100.0 F) |
| 1983 | 41.7 C (107.1 F) |
| 1984 | 38.9 C (102.0 F) |
| 1985 | 41.1 C (106.0 F) |
| 1986 | 39.4 C (102.9 F) |
| 1987 | 38.9 C (102.0 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 39.4 C (102.9 F) |
| 1990 | 42.2 C (108.0 F) |
| 1991 | 38.9 C (102.0 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 35.6 C (96.1 F) |
| 1994 | 38.3 C (100.9 F) |
| 1995 | 37.2 C (99.0 F) |
| 1996 | 39.4 C (102.9 F) |
| 1997 | 36.7 C (98.1 F) |
| 1998 | 40.0 C (104.0 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 39.4 C (102.9 F) |
| 2001 | 41.1 C (106.0 F) |
| 2002 | 42.2 C (108.0 F) |
| 2003 | 42.2 C (108.0 F) |
| 2004 | 38.9 C (102.0 F) |
| 2005 | 39.4 C (102.9 F) |
| 2006 | 40.6 C (105.1 F) |
| 2007 | 41.1 C (106.0 F) |
| 2008 | 38.9 C (102.0 F) |
| 2009 | 40.0 C (104.0 F) |
| 2010 | 38.9 C (102.0 F) |
| 2011 | 38.3 C (100.9 F) |
| 2012 | 38.9 C (102.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1897 | -17.8 C (0.0 F) |
| 1898 | -28.3 C (-18.9 F) |
| 1899 | -29.4 C (-20.9 F) |
| 1900 | -19.4 C (-2.9 F) |
| 1901 | -20.6 C (-5.1 F) |
| 1902 | -24.4 C (-11.9 F) |
| 1903 | -24.4 C (-11.9 F) |
| 1904 | -17.8 C (0.0 F) |
| 1905 | -28.9 C (-20.0 F) |
| 1906 | -23.9 C (-11.0 F) |
| 1907 | -20.0 C (-4.0 F) |
| 1908 | -24.4 C (-11.9 F) |
| 1909 | -23.3 C (-9.9 F) |
| 1910 | -35.6 C (-32.1 F) |
| 1911 | -22.8 C (-9.0 F) |
| 1912 | -29.4 C (-20.9 F) |
| 1913 | -25.0 C (-13.0 F) |
| 1914 | -18.3 C (-0.9 F) |
| 1915 | -25.6 C (-14.1 F) |
| 1916 | -28.9 C (-20.0 F) |
| 1917 | -25.6 C (-14.1 F) |
| 1918 | -23.3 C (-9.9 F) |
| 1919 | -28.9 C (-20.0 F) |
| 1920 | -23.3 C (-9.9 F) |
| 1921 | -20.6 C (-5.1 F) |
| 1922 | -38.3 C (-36.9 F) |
| 1923 | -28.3 C (-18.9 F) |
| 1924 | -47.2 C (-53.0 F) |
| 1925 | -16.7 C (1.9 F) |
| 1926 | -20.6 C (-5.1 F) |
| 1927 | -21.1 C (-6.0 F) |
| 1928 | -23.9 C (-11.0 F) |
| 1929 | -28.3 C (-18.9 F) |
| 1930 | -42.2 C (-44.0 F) |
| 1931 | -28.9 C (-20.0 F) |
| 1932 | -30.0 C (-22.0 F) |
| 1933 | -37.8 C (-36.0 F) |
| 1934 | -12.8 C (9.0 F) |
| 1935 | -21.7 C (-7.1 F) |
| 1936 | -23.9 C (-11.0 F) |
| 1937 | -35.6 C (-32.1 F) |
| 1938 | -16.1 C (3.0 F) |
| 1939 | -19.4 C (-2.9 F) |
| 1940 | -22.8 C (-9.0 F) |
| 1941 | -16.1 C (3.0 F) |
| 1942 | -25.0 C (-13.0 F) |
| 1943 | -26.1 C (-15.0 F) |
| 1966 | -20.6 C (-5.1 F) |
| 1967 | -22.8 C (-9.0 F) |
| 1968 | -16.7 C (1.9 F) |
| 1969 | -21.7 C (-7.1 F) |
| 1970 | -18.9 C (-2.0 F) |
| 1971 | -17.8 C (0.0 F) |
| 1972 | -32.8 C (-27.0 F) |
| 1973 | -15.0 C (5.0 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -19.4 C (-2.9 F) |
| 1976 | -17.2 C (1.0 F) |
| 1977 | -27.8 C (-18.0 F) |
| 1978 | -25.6 C (-14.1 F) |
| 1979 | -31.7 C (-25.1 F) |
| 1980 | -22.2 C (-8.0 F) |
| 1981 | -16.1 C (3.0 F) |
| 1982 | -27.8 C (-18.0 F) |
| 1983 | -25.6 C (-14.1 F) |
| 1984 | -30.6 C (-23.1 F) |
| 1985 | -31.1 C (-24.0 F) |
| 1986 | -16.1 C (3.0 F) |
| 1987 | -23.9 C (-11.0 F) |
| 1988 | -26.1 C (-15.0 F) |
| 1989 | -25.0 C (-13.0 F) |
| 1990 | -35.6 C (-32.1 F) |
| 1991 | -22.8 C (-9.0 F) |
| 1992 | -27.2 C (-17.0 F) |
| 1993 | -26.1 C (-15.0 F) |
| 1994 | -18.9 C (-2.0 F) |
| 1995 | -20.6 C (-5.1 F) |
| 1996 | -27.8 C (-18.0 F) |
| 1997 | -17.2 C (1.0 F) |
| 1998 | -11.7 C (10.9 F) |
| 1999 | -20.6 C (-5.1 F) |
| 2000 | -16.7 C (1.9 F) |
| 2001 | -20.6 C (-5.1 F) |
| 2002 | -20.0 C (-4.0 F) |
| 2003 | -15.6 C (3.9 F) |
| 2004 | -23.3 C (-9.9 F) |
| 2005 | -21.7 C (-7.1 F) |
| 2006 | -19.4 C (-2.9 F) |
| 2007 | -18.9 C (-2.0 F) |
| 2008 | -26.1 C (-15.0 F) |
| 2009 | -21.1 C (-6.0 F) |
| 2010 | -20.0 C (-4.0 F) |
| 2011 | -22.2 C (-8.0 F) |
| 2012 | -18.9 C (-2.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1897 | 18.5 mm (0.7 in) |
| 1898 | 19.1 mm (0.8 in) |
| 1899 | 30.5 mm (1.2 in) |
| 1900 | 24.1 mm (0.9 in) |
| 1901 | 20.8 mm (0.8 in) |
| 1902 | 27.7 mm (1.1 in) |
| 1903 | 24.1 mm (0.9 in) |
| 1904 | 25.4 mm (1.0 in) |
| 1905 | 48.3 mm (1.9 in) |
| 1906 | 27.9 mm (1.1 in) |
| 1907 | 30.5 mm (1.2 in) |
| 1908 | 16.5 mm (0.6 in) |
| 1909 | 29.2 mm (1.1 in) |
| 1910 | 15.2 mm (0.6 in) |
| 1911 | 15.2 mm (0.6 in) |
| 1912 | 21.6 mm (0.9 in) |
| 1913 | 47.0 mm (1.9 in) |
| 1914 | 17.8 mm (0.7 in) |
| 1915 | 12.2 mm (0.5 in) |
| 1916 | 24.1 mm (0.9 in) |
| 1917 | 22.9 mm (0.9 in) |
| 1918 | 16.5 mm (0.6 in) |
| 1919 | 30.5 mm (1.2 in) |
| 1920 | 14.5 mm (0.6 in) |
| 1921 | 20.3 mm (0.8 in) |
| 1922 | 15.2 mm (0.6 in) |
| 1923 | 17.8 mm (0.7 in) |
| 1924 | 15.2 mm (0.6 in) |
| 1925 | 37.1 mm (1.5 in) |
| 1926 | 12.7 mm (0.5 in) |
| 1927 | 25.4 mm (1.0 in) |
| 1928 | 25.4 mm (1.0 in) |
| 1929 | 17.8 mm (0.7 in) |
| 1930 | 25.4 mm (1.0 in) |
| 1931 | 20.3 mm (0.8 in) |
| 1932 | 44.5 mm (1.8 in) |
| 1933 | 15.2 mm (0.6 in) |
| 1934 | 13.5 mm (0.5 in) |
| 1935 | 12.7 mm (0.5 in) |
| 1936 | 27.9 mm (1.1 in) |
| 1937 | 21.6 mm (0.9 in) |
| 1938 | 28.7 mm (1.1 in) |
| 1939 | 15.2 mm (0.6 in) |
| 1940 | 23.6 mm (0.9 in) |
| 1941 | 21.6 mm (0.9 in) |
| 1942 | 16.5 mm (0.6 in) |
| 1943 | 7.6 mm (0.30 in) |
| 1966 | 10.9 mm (0.4 in) |
| 1967 | 11.4 mm (0.4 in) |
| 1968 | 18.0 mm (0.7 in) |
| 1969 | 35.3 mm (1.4 in) |
| 1970 | 21.8 mm (0.9 in) |
| 1971 | 15.2 mm (0.6 in) |
| 1972 | 17.8 mm (0.7 in) |
| 1973 | 18.8 mm (0.7 in) |
| 1974 | 11.2 mm (0.4 in) |
| 1975 | 27.2 mm (1.1 in) |
| 1976 | 24.1 mm (0.9 in) |
| 1977 | 10.9 mm (0.4 in) |
| 1978 | 14.5 mm (0.6 in) |
| 1979 | 17.3 mm (0.7 in) |
| 1980 | 15.7 mm (0.6 in) |
| 1981 | 18.5 mm (0.7 in) |
| 1982 | 16.0 mm (0.6 in) |
| 1983 | 25.7 mm (1.0 in) |
| 1984 | 11.7 mm (0.5 in) |
| 1985 | 31.8 mm (1.3 in) |
| 1986 | 20.3 mm (0.8 in) |
| 1987 | 24.4 mm (1.0 in) |
| 1988 | 16.3 mm (0.6 in) |
| 1989 | 22.4 mm (0.9 in) |
| 1990 | 17.0 mm (0.7 in) |
| 1991 | 13.7 mm (0.5 in) |
| 1992 | 23.6 mm (0.9 in) |
| 1993 | 17.0 mm (0.7 in) |
| 1994 | 10.4 mm (0.4 in) |
| 1995 | 18.0 mm (0.7 in) |
| 1996 | 15.7 mm (0.6 in) |
| 1997 | 22.4 mm (0.9 in) |
| 1998 | 14.5 mm (0.6 in) |
| 1999 | 13.5 mm (0.5 in) |
| 2000 | 25.4 mm (1.0 in) |
| 2001 | 15.2 mm (0.6 in) |
| 2002 | 27.9 mm (1.1 in) |
| 2003 | 15.7 mm (0.6 in) |
| 2004 | 20.3 mm (0.8 in) |
| 2005 | 28.7 mm (1.1 in) |
| 2006 | 11.9 mm (0.5 in) |
| 2007 | 22.9 mm (0.9 in) |
| 2008 | 16.0 mm (0.6 in) |
| 2009 | 27.4 mm (1.1 in) |
| 2010 | 17.8 mm (0.7 in) |
| 2011 | 15.7 mm (0.6 in) |
| 2012 | 24.6 mm (1.0 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1897 | 28.9 mm (1.1 in) |
| 1898 | 22.9 mm (0.9 in) |
| 1899 | 44.2 mm (1.7 in) |
| 1900 | 24.1 mm (0.9 in) |
| 1901 | 31.3 mm (1.2 in) |
| 1902 | 32.0 mm (1.3 in) |
| 1903 | 40.9 mm (1.6 in) |
| 1904 | 34.3 mm (1.4 in) |
| 1905 | 50.8 mm (2.0 in) |
| 1906 | 58.4 mm (2.3 in) |
| 1907 | 50.1 mm (2.0 in) |
| 1908 | 20.3 mm (0.8 in) |
| 1909 | 32.6 mm (1.3 in) |
| 1910 | 29.9 mm (1.2 in) |
| 1911 | 22.9 mm (0.9 in) |
| 1912 | 33.1 mm (1.3 in) |
| 1913 | 109.3 mm (4.3 in) |
| 1914 | 28.0 mm (1.1 in) |
| 1915 | 26.2 mm (1.0 in) |
| 1916 | 31.7 mm (1.2 in) |
| 1917 | 35.6 mm (1.4 in) |
| 1918 | 35.6 mm (1.4 in) |
| 1919 | 33.0 mm (1.3 in) |
| 1920 | 21.5 mm (0.8 in) |
| 1921 | 30.5 mm (1.2 in) |
| 1922 | 23.3 mm (0.9 in) |
| 1923 | 38.4 mm (1.5 in) |
| 1924 | 24.8 mm (1.0 in) |
| 1925 | 37.1 mm (1.5 in) |
| 1926 | 21.8 mm (0.9 in) |
| 1927 | 38.9 mm (1.5 in) |
| 1928 | 33.0 mm (1.3 in) |
| 1929 | 25.4 mm (1.0 in) |
| 1930 | 29.9 mm (1.2 in) |
| 1931 | 22.9 mm (0.9 in) |
| 1932 | 58.4 mm (2.3 in) |
| 1933 | 30.4 mm (1.2 in) |
| 1934 | 27.7 mm (1.1 in) |
| 1935 | 26.7 mm (1.1 in) |
| 1936 | 36.0 mm (1.4 in) |
| 1937 | 41.9 mm (1.6 in) |
| 1938 | 36.6 mm (1.4 in) |
| 1939 | 15.2 mm (0.6 in) |
| 1940 | 52.1 mm (2.1 in) |
| 1941 | 24.2 mm (1.0 in) |
| 1942 | 30.1 mm (1.2 in) |
| 1943 | 14.7 mm (0.6 in) |
| 1966 | 20.8 mm (0.8 in) |
| 1967 | 19.8 mm (0.8 in) |
| 1968 | 21.8 mm (0.9 in) |
| 1969 | 54.6 mm (2.1 in) |
| 1970 | 40.3 mm (1.6 in) |
| 1971 | 33.8 mm (1.3 in) |
| 1972 | 22.1 mm (0.9 in) |
| 1973 | 27.5 mm (1.1 in) |
| 1974 | 24.1 mm (0.9 in) |
| 1975 | 39.9 mm (1.6 in) |
| 1976 | 38.3 mm (1.5 in) |
| 1977 | 25.2 mm (1.0 in) |
| 1978 | 30.5 mm (1.2 in) |
| 1979 | 38.1 mm (1.5 in) |
| 1980 | 27.5 mm (1.1 in) |
| 1981 | 39.9 mm (1.6 in) |
| 1982 | 29.5 mm (1.2 in) |
| 1983 | 31.0 mm (1.2 in) |
| 1984 | 19.6 mm (0.8 in) |
| 1985 | 39.7 mm (1.6 in) |
| 1986 | 39.0 mm (1.5 in) |
| 1987 | 27.4 mm (1.1 in) |
| 1988 | 22.1 mm (0.9 in) |
| 1989 | 33.3 mm (1.3 in) |
| 1990 | 19.1 mm (0.8 in) |
| 1991 | 28.0 mm (1.1 in) |
| 1992 | 52.1 mm (2.1 in) |
| 1993 | 36.9 mm (1.5 in) |
| 1994 | 19.0 mm (0.7 in) |
| 1995 | 38.5 mm (1.5 in) |
| 1996 | 41.4 mm (1.6 in) |
| 1997 | 30.7 mm (1.2 in) |
| 1998 | 26.7 mm (1.1 in) |
| 1999 | 31.1 mm (1.2 in) |
| 2000 | 35.1 mm (1.4 in) |
| 2001 | 34.5 mm (1.4 in) |
| 2002 | 27.9 mm (1.1 in) |
| 2003 | 21.8 mm (0.9 in) |
| 2004 | 42.2 mm (1.7 in) |
| 2005 | 58.8 mm (2.3 in) |
| 2006 | 28.4 mm (1.1 in) |
| 2007 | 25.7 mm (1.0 in) |
| 2008 | 36.2 mm (1.4 in) |
| 2009 | 31.7 mm (1.2 in) |
| 2010 | 28.0 mm (1.1 in) |
| 2011 | 28.0 mm (1.1 in) |
| 2012 | 32.2 mm (1.3 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1897 | 53 days |
| 1898 | 59 days |
| 1899 | 99 days |
| 1900 | 74 days |
| 1901 | 67 days |
| 1902 | 40 days |
| 1903 | 55 days |
| 1904 | 44 days |
| 1905 | 64 days |
| 1906 | 39 days |
| 1907 | 25 days |
| 1908 | 32 days |
| 1909 | 63 days |
| 1910 | 57 days |
| 1911 | 30 days |
| 1912 | 34 days |
| 1913 | 54 days |
| 1914 | 81 days |
| 1915 | 50 days |
| 1916 | 36 days |
| 1917 | 93 days |
| 1918 | 47 days |
| 1919 | 112 days |
| 1920 | 44 days |
| 1921 | 77 days |
| 1922 | 39 days |
| 1923 | 50 days |
| 1924 | 82 days |
| 1925 | 34 days |
| 1926 | 39 days |
| 1927 | 44 days |
| 1928 | 93 days |
| 1929 | 87 days |
| 1930 | 66 days |
| 1931 | 127 days |
| 1932 | 42 days |
| 1933 | 76 days |
| 1934 | 102 days |
| 1935 | 70 days |
| 1936 | 112 days |
| 1937 | 50 days |
| 1938 | 41 days |
| 1939 | 45 days |
| 1940 | 48 days |
| 1941 | 28 days |
| 1942 | 53 days |
| 1943 | 7 days |
| 1966 | 14 days |
| 1967 | 81 days |
| 1968 | 51 days |
| 1969 | 74 days |
| 1970 | 59 days |
| 1971 | 66 days |
| 1972 | 50 days |
| 1973 | 31 days |
| 1974 | 50 days |
| 1975 | 44 days |
| 1976 | 43 days |
| 1977 | 48 days |
| 1978 | 69 days |
| 1979 | 54 days |
| 1980 | 39 days |
| 1981 | 79 days |
| 1982 | 32 days |
| 1983 | 41 days |
| 1984 | 40 days |
| 1985 | 37 days |
| 1986 | 35 days |
| 1987 | 69 days |
| 1988 | 46 days |
| 1989 | 38 days |
| 1990 | 60 days |
| 1991 | 25 days |
| 1992 | 44 days |
| 1993 | 50 days |
| 1994 | 105 days |
| 1995 | 56 days |
| 1996 | 41 days |
| 1997 | 77 days |
| 1998 | 27 days |
| 1999 | 49 days |
| 2000 | 34 days |
| 2001 | 32 days |
| 2002 | 70 days |
| 2003 | 35 days |
| 2004 | 44 days |
| 2005 | 82 days |
| 2006 | 61 days |
| 2007 | 43 days |
| 2008 | 53 days |
| 2009 | 54 days |
| 2010 | 54 days |
| 2011 | 9 days |
| 2012 | 13 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
44 years with a frostAcross 44 years with a frost, the median last spring frost at Riverside 7 SSW falls on 3 June and the median first autumn frost on 12 September, which leaves a median of 102 days between them.
Fitted over all years, the growing season changes by +1.4 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1938 to 2005) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 3 June | n/a | 31 May | n/a | -0.8 days per decade |
| First autumn frost | 12 September | n/a | 16 September | n/a | +0.6 days per decade |
| Growing days | 102 days | n/a | 110 days | n/a | +1.4 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
67 years, 1898 to 2010A day with at least 19.7 mm (0.8 in) of rain is expected about once in 2 years. A day with at least 49.8 mm (2.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 19.7 mm (0.8 in) | |
| 5 years | 26.4 mm (1.0 in) | |
| 10 years | 31.4 mm (1.2 in) | |
| 25 years | 38.2 mm (1.5 in) | |
| 50 years | 43.8 mm (1.7 in) | |
| 100 years | 49.8 mm (2.0 in) | Longer than the 67 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, 67 years of values from 1898 to 2010.
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: 48.3 mm (1.9 in) in 1905; 47.0 mm (1.9 in) in 1913; 44.5 mm (1.8 in) in 1932.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Riverside 7 SSW, at 1990. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1990 ran 0.5 C (0.9 F) lower than in the years before (possible change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1990 | -0.5 | -0.9 | possible | 5 |
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2025-12-31).