Portland Weather Records (USC00035866)
Record envelope, standing records and threshold days for Portland (USC00035866), Arkansas, United States, with 118 years of record.
Key Facts for Portland
- Portland (USC00035866) is a weather station in Arkansas, United States at 33.25 latitude and -91.51 longitude, 39 m (128 ft) above sea level.
- The station reports from 1909 to 2026, 118 years of record.
- 1,464 records set at Portland still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Portland set a daily record precipitation of 42.4 mm (1.7 in) on 25 August 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Arkansas, United States, 33.25 latitude, -91.51 longitude.
- Elevation: 39 m (128 ft).
- Period of record: 1909 to 2026, 118 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
6 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 30.0 C (86.0 F) | -20.0 C (-4.0 F) | 23.3 C (73.9 F) | -9.4 C (15.1 F) |
| Feb | 31.7 C (89.1 F) | -16.7 C (1.9 F) | 26.7 C (80.1 F) | -8.9 C (16.0 F) |
| Mar | 34.4 C (93.9 F) | -10.6 C (12.9 F) | 28.9 C (84.0 F) | -2.8 C (27.0 F) |
| Apr | 35.6 C (96.1 F) | -2.2 C (28.0 F) | 30.6 C (87.1 F) | 6.1 C (43.0 F) |
| May | 38.9 C (102.0 F) | 3.3 C (37.9 F) | 33.3 C (91.9 F) | 8.3 C (46.9 F) |
| Jun | 41.1 C (106.0 F) | 8.9 C (48.0 F) | 35.0 C (95.0 F) | 13.9 C (57.0 F) |
| Jul | 42.8 C (109.0 F) | 12.2 C (54.0 F) | 38.9 C (102.0 F) | 21.7 C (71.1 F) |
| Aug | 43.3 C (109.9 F) | 11.1 C (52.0 F) | 41.7 C (107.1 F) | 22.2 C (72.0 F) |
| Sep | 41.1 C (106.0 F) | 3.3 C (37.9 F) | n/a | n/a |
| Oct | 37.2 C (99.0 F) | -5.0 C (23.0 F) | n/a | n/a |
| Nov | 31.7 C (89.1 F) | -8.9 C (16.0 F) | n/a | n/a |
| Dec | 29.4 C (84.9 F) | -17.8 C (0.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1909 | 16 |
| 1910 | 24 |
| 1911 | 30 |
| 1912 | 11 |
| 1913 | 16 |
| 1914 | 18 |
| 1915 | 29 |
| 1916 | 16 |
| 1917 | 31 |
| 1918 | 22 |
| 1919 | 11 |
| 1920 | 10 |
| 1921 | 25 |
| 1922 | 26 |
| 1923 | 17 |
| 1924 | 28 |
| 1925 | 35 |
| 1926 | 32 |
| 1927 | 39 |
| 1928 | 10 |
| 1929 | 9 |
| 1930 | 20 |
| 1931 | 11 |
| 1932 | 20 |
| 1933 | 19 |
| 1934 | 4 |
| 1935 | 7 |
| 1936 | 17 |
| 1937 | 20 |
| 1938 | 7 |
| 1939 | 5 |
| 1940 | 26 |
| 1941 | 7 |
| 1942 | 12 |
| 1943 | 29 |
| 1944 | 16 |
| 1945 | 12 |
| 1946 | 11 |
| 1947 | 14 |
| 1948 | 11 |
| 1949 | 6 |
| 1950 | 17 |
| 1951 | 16 |
| 1952 | 17 |
| 1953 | 10 |
| 1954 | 9 |
| 1955 | 14 |
| 1956 | 6 |
| 1957 | 4 |
| 1958 | 12 |
| 1959 | 8 |
| 1960 | 4 |
| 1961 | 12 |
| 1962 | 10 |
| 1963 | 16 |
| 1964 | 12 |
| 1965 | 8 |
| 1966 | 6 |
| 1967 | 11 |
| 1968 | 2 |
| 1972 | 4 |
| 1973 | 4 |
| 1974 | 16 |
| 1975 | 5 |
| 1976 | 10 |
| 1977 | 4 |
| 1978 | 7 |
| 1979 | 1 |
| 1980 | 10 |
| 1981 | 4 |
| 1982 | 7 |
| 1983 | 12 |
| 1984 | 9 |
| 1985 | 10 |
| 1986 | 10 |
| 1987 | 7 |
| 1988 | 5 |
| 1989 | 19 |
| 1990 | 11 |
| 1991 | 9 |
| 1992 | 11 |
| 1993 | 8 |
| 1994 | 3 |
| 1995 | 12 |
| 1996 | 35 |
| 1997 | 13 |
| 1998 | 36 |
| 1999 | 7 |
| 2000 | 5 |
| 2001 | 4 |
| 2002 | 7 |
| 2003 | 3 |
| 2004 | 11 |
| 2005 | 4 |
| 2006 | 6 |
| 2007 | 4 |
| 2008 | 7 |
| 2009 | 5 |
| 2010 | 10 |
| 2011 | 12 |
| 2012 | 5 |
| 2013 | 12 |
| 2014 | 16 |
| 2015 | 16 |
| 2016 | 3 |
| 2017 | 9 |
| 2018 | 14 |
| 2019 | 12 |
| 2020 | 2 |
| 2021 | 20 |
| 2022 | 8 |
| 2023 | 16 |
| 2024 | 17 |
| 2025 | 14 |
| 2026 | 10 |
All-Time Record Progression
16 new records| Date | Kind | Detail |
|---|---|---|
| 1941-10-31 | Record daily precipitation | Record daily precipitation 167.6 mm (6.6 in) |
| 1943-07-23 | Record high minimum temperature | Record high minimum temperature 26.7 C (80.1 F) |
| 1944-07-13 | Record high minimum temperature | Record high minimum temperature 28.3 C (82.9 F) |
| 1944-07-16 | Record high minimum temperature | Record high minimum temperature 30.0 C (86.0 F) |
| 1949-01-31 | Record snow depth | Record snow depth 22.9 cm (9.0 in) |
| 1949-01-31 | Record low maximum temperature | Record low maximum temperature -6.1 C (21.0 F) |
| 1951-01-31 | Record low maximum temperature | Record low maximum temperature -7.8 C (18.0 F) |
| 1962-01-11 | Record low maximum temperature | Record low maximum temperature -8.3 C (17.1 F) |
| 1974-04-22 | Record daily precipitation | Record daily precipitation 170.9 mm (6.7 in) |
| 1978-05-07 | Record daily precipitation | Record daily precipitation 173.5 mm (6.8 in) |
| 1983-12-03 | Record daily precipitation | Record daily precipitation 177.8 mm (7.0 in) |
| 1998-07-09 | Record high minimum temperature | Record high minimum temperature 30.6 C (87.1 F) |
| 2007-07-07 | Record daily precipitation | Record daily precipitation 241.3 mm (9.5 in) |
| 2016-03-10 | Record daily precipitation | Record daily precipitation 256.0 mm (10.1 in) |
| 2021-02-16 | Record low maximum temperature | Record low maximum temperature -8.9 C (16.0 F) |
| 2024-01-16 | Record low maximum temperature | Record low maximum temperature -10.0 C (14.0 F) |
Wettest Day of Each Month
Mar: 256.0 mm (10.1 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 144.8 mm (5.7 in) | 29 January 1999 |
| Feb | 156.5 mm (6.2 in) | 22 February 2018 |
| Mar | 256.0 mm (10.1 in) | 10 March 2016 |
| Apr | 170.9 mm (6.7 in) | 22 April 1974 |
| May | 173.5 mm (6.8 in) | 7 May 1978 |
| Jun | 102.6 mm (4.0 in) | 24 June 2019 |
| Jul | 241.3 mm (9.5 in) | 7 July 2007 |
| Aug | 209.6 mm (8.3 in) | 12 August 2008 |
| Sep | 152.4 mm (6.0 in) | 11 September 1958 |
| Oct | 167.6 mm (6.6 in) | 31 October 1941 |
| Nov | 175.3 mm (6.9 in) | 16 November 1987 |
| Dec | 177.8 mm (7.0 in) | 3 December 1983 |
Period of Record Coverage
1909 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1909 | 270 | 74% | No |
| 1910 | 348 | 95% | Yes |
| 1911 | 348 | 95% | Yes |
| 1912 | 357 | 98% | Yes |
| 1913 | 357 | 98% | Yes |
| 1914 | 358 | 98% | Yes |
| 1915 | 361 | 99% | Yes |
| 1916 | 357 | 98% | Yes |
| 1917 | 350 | 96% | Yes |
| 1918 | 346 | 95% | Yes |
| 1919 | 334 | 92% | Yes |
| 1920 | 365 | 100% | Yes |
| 1921 | 365 | 100% | Yes |
| 1922 | 365 | 100% | Yes |
| 1923 | 364 | 100% | Yes |
| 1924 | 366 | 100% | Yes |
| 1925 | 365 | 100% | Yes |
| 1926 | 355 | 97% | Yes |
| 1927 | 364 | 100% | Yes |
| 1928 | 365 | 100% | Yes |
| 1929 | 363 | 99% | Yes |
| 1930 | 365 | 100% | Yes |
| 1931 | 365 | 100% | Yes |
| 1932 | 366 | 100% | Yes |
| 1933 | 356 | 98% | Yes |
| 1934 | 365 | 100% | Yes |
| 1935 | 365 | 100% | Yes |
| 1936 | 366 | 100% | Yes |
| 1937 | 365 | 100% | Yes |
| 1938 | 362 | 99% | Yes |
| 1939 | 364 | 100% | Yes |
| 1940 | 366 | 100% | Yes |
| 1941 | 358 | 98% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 361 | 99% | Yes |
| 1944 | 362 | 99% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 364 | 100% | Yes |
| 1947 | 359 | 98% | Yes |
| 1948 | 359 | 98% | Yes |
| 1949 | 363 | 99% | Yes |
| 1950 | 332 | 91% | Yes |
| 1951 | 358 | 98% | Yes |
| 1952 | 361 | 99% | Yes |
| 1953 | 362 | 99% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 360 | 99% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 361 | 99% | Yes |
| 1958 | 361 | 99% | Yes |
| 1959 | 357 | 98% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 360 | 99% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 333 | 91% | Yes |
| 1964 | 345 | 94% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 353 | 97% | Yes |
| 1967 | 354 | 97% | Yes |
| 1968 | 176 | 48% | No |
| 1972 | 325 | 89% | No |
| 1973 | 364 | 100% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 365 | 100% | Yes |
| 1976 | 365 | 100% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 296 | 81% | No |
| 1979 | 354 | 97% | Yes |
| 1980 | 257 | 70% | No |
| 1981 | 360 | 99% | Yes |
| 1982 | 348 | 95% | Yes |
| 1983 | 345 | 95% | Yes |
| 1984 | 348 | 95% | Yes |
| 1985 | 351 | 96% | Yes |
| 1986 | 350 | 96% | Yes |
| 1987 | 347 | 95% | Yes |
| 1988 | 352 | 96% | Yes |
| 1989 | 358 | 98% | Yes |
| 1990 | 359 | 98% | Yes |
| 1991 | 353 | 97% | Yes |
| 1992 | 349 | 95% | Yes |
| 1993 | 357 | 98% | Yes |
| 1994 | 352 | 96% | Yes |
| 1995 | 354 | 97% | Yes |
| 1996 | 359 | 98% | Yes |
| 1997 | 355 | 97% | Yes |
| 1998 | 350 | 96% | Yes |
| 1999 | 356 | 98% | Yes |
| 2000 | 358 | 98% | Yes |
| 2001 | 358 | 98% | Yes |
| 2002 | 362 | 99% | Yes |
| 2003 | 342 | 94% | Yes |
| 2004 | 324 | 89% | No |
| 2005 | 318 | 87% | No |
| 2006 | 334 | 92% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 363 | 99% | Yes |
| 2009 | 361 | 99% | Yes |
| 2010 | 362 | 99% | Yes |
| 2011 | 361 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 356 | 98% | Yes |
| 2014 | 352 | 96% | Yes |
| 2015 | 311 | 85% | No |
| 2016 | 327 | 89% | No |
| 2017 | 356 | 98% | Yes |
| 2018 | 356 | 98% | Yes |
| 2019 | 357 | 98% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 352 | 96% | Yes |
| 2022 | 360 | 99% | Yes |
| 2023 | 361 | 99% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 352 | 96% | Yes |
| 2026 | 221 | 61% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 25 August 2026 | Portland, US | daily rain (Provisional) | 42.4 mm (1.7 in) | 16.5 mm (0.6 in) | 24 years | 26 of 100 (Routine) |
| 23 August 2026 | Portland, US | daily high max (Provisional) | 41.1 C (106.0 F) | 0.5 C (0.9 F) | 100 years | 41 of 100 (Notable) |
| 21 August 2026 | Portland, US | daily high max (Provisional) | 41.7 C (107.1 F) | 0.6 C (1.1 F) | 100 years | 42 of 100 (Notable) |
| 19 August 2026 | Portland, US | daily high max (Provisional) | 41.1 C (106.0 F) | 0.5 C (0.9 F) | 1 year | 11 of 100 (Routine) |
| 18 August 2026 | Portland, US | daily high min (Provisional) | 27.2 C (81.0 F) | 1.1 C (2.0 F) | 73 years | 36 of 100 (Notable) |
| 18 August 2026 | Portland, US | daily high max (Tie, Provisional) | 41.1 C (106.0 F) | tie | 116 years | 10 of 100 (Routine) |
| 10 August 2026 | Portland, US | daily high min (Tie) | 26.7 C (80.1 F) | tie | 73 years | 8 of 100 (Routine) |
| 3 August 2026 | Portland, US | daily low max | 26.7 C (80.1 F) | 0.5 C (0.9 F) | 60 years | 29 of 100 (Routine) |
| 31 July 2026 | Portland, US | daily high min | 26.7 C (80.1 F) | 0.6 C (1.1 F) | 13 years | 16 of 100 (Routine) |
| 11 July 2026 | Portland, US | daily high min | 25.6 C (78.1 F) | 0.6 C (1.1 F) | 45 years | 25 of 100 (Routine) |
| 1 June 2026 | Portland, US | daily high min (Tie) | 24.4 C (75.9 F) | tie | 40 years | 5 of 100 (Routine) |
| 31 May 2026 | Portland, US | daily high min (Tie) | 23.9 C (75.0 F) | tie | 52 years | 6 of 100 (Routine) |
| 19 May 2026 | Portland, US | daily high min | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 8 years | 16 of 100 (Routine) |
| 18 March 2026 | Portland, US | daily low max (Tie) | 7.8 C (46.0 F) | tie | 20 years | 4 of 100 (Routine) |
| 17 March 2026 | Portland, US | daily low min (Tie) | -2.8 C (27.0 F) | tie | 103 years | 10 of 100 (Routine) |
| 8 March 2026 | Portland, US | daily high min | 20.6 C (69.1 F) | 5.0 C (9.0 F) | 104 years | 49 of 100 (Notable) |
| 20 February 2026 | Portland, US | daily high max (Tie) | 26.7 C (80.1 F) | tie | 104 years | 10 of 100 (Routine) |
| 19 February 2026 | Portland, US | daily high min | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 108 years | 41 of 100 (Notable) |
| 27 January 2026 | Portland, US | daily low max | -5.6 C (21.9 F) | 2.8 C (5.0 F) | 90 years | 41 of 100 (Notable) |
| 26 January 2026 | Portland, US | daily low max | -6.1 C (21.0 F) | 3.9 C (7.0 F) | 86 years | 40 of 100 (Notable) |
Climate Trend
96 complete years, 1911 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1911 | 18.9 C | +1.12 C |
| 1912 | 16.5 C | -1.25 C |
| 1913 | 18.1 C | +0.31 C |
| 1914 | 17.6 C | -0.16 C |
| 1915 | 17.7 C | -0.11 C |
| 1916 | 17.5 C | -0.29 C |
| 1917 | 16.3 C | -1.44 C |
| 1918 | 17.8 C | 0.00 C |
| 1920 | 17.8 C | +0.06 C |
| 1921 | 19.9 C | +2.16 C |
| 1922 | 18.9 C | +1.09 C |
| 1923 | 18.2 C | +0.40 C |
| 1924 | 17.7 C | -0.11 C |
| 1925 | 19.2 C | +1.42 C |
| 1926 | 18.8 C | +1.00 C |
| 1927 | 19.7 C | +1.88 C |
| 1928 | 17.9 C | +0.10 C |
| 1929 | 17.7 C | -0.09 C |
| 1930 | 18.0 C | +0.22 C |
| 1931 | 18.3 C | +0.47 C |
| 1932 | 18.0 C | +0.23 C |
| 1933 | 19.2 C | +1.41 C |
| 1934 | 18.4 C | +0.58 C |
| 1935 | 18.0 C | +0.22 C |
| 1936 | 17.7 C | -0.11 C |
| 1937 | 17.5 C | -0.24 C |
| 1938 | 18.5 C | +0.68 C |
| 1939 | 18.0 C | +0.20 C |
| 1940 | 16.1 C | -1.71 C |
| 1941 | 18.1 C | +0.30 C |
| 1943 | 18.5 C | +0.70 C |
| 1944 | 18.5 C | +0.69 C |
| 1945 | 18.1 C | +0.36 C |
| 1946 | 18.6 C | +0.84 C |
| 1947 | 17.8 C | +0.02 C |
| 1948 | 17.8 C | -0.01 C |
| 1949 | 17.8 C | 0.00 C |
| 1951 | 17.4 C | -0.43 C |
| 1953 | 18.0 C | +0.25 C |
| 1954 | 18.1 C | +0.30 C |
| 1955 | 17.1 C | -0.66 C |
| 1956 | 17.5 C | -0.26 C |
| 1957 | 17.2 C | -0.61 C |
| 1958 | 16.3 C | -1.50 C |
| 1959 | 17.1 C | -0.64 C |
| 1960 | 16.5 C | -1.26 C |
| 1961 | 16.3 C | -1.46 C |
| 1962 | 17.3 C | -0.52 C |
| 1965 | 17.4 C | -0.41 C |
| 1966 | 16.9 C | -0.85 C |
| 1967 | 17.2 C | -0.54 C |
| 1973 | 17.6 C | -0.20 C |
| 1974 | 17.2 C | -0.55 C |
| 1975 | 16.9 C | -0.88 C |
| 1976 | 16.2 C | -1.59 C |
| 1977 | 17.3 C | -0.49 C |
| 1979 | 16.6 C | -1.20 C |
| 1981 | 17.9 C | +0.15 C |
| 1982 | 18.0 C | +0.25 C |
| 1983 | 17.2 C | -0.60 C |
| 1984 | 18.1 C | +0.35 C |
| 1985 | 18.2 C | +0.41 C |
| 1986 | 18.8 C | +1.00 C |
| 1987 | 18.5 C | +0.72 C |
| 1988 | 18.0 C | +0.20 C |
| 1989 | 17.2 C | -0.61 C |
| 1990 | 18.4 C | +0.63 C |
| 1991 | 18.5 C | +0.72 C |
| 1992 | 17.5 C | -0.31 C |
| 1993 | 17.4 C | -0.35 C |
| 1994 | 17.9 C | +0.15 C |
| 1995 | 18.0 C | +0.18 C |
| 1996 | 18.4 C | +0.59 C |
| 1997 | 17.7 C | -0.11 C |
| 1998 | 19.3 C | +1.51 C |
| 1999 | 18.7 C | +0.93 C |
| 2000 | 17.7 C | -0.05 C |
| 2001 | 18.0 C | +0.18 C |
| 2002 | 17.7 C | -0.13 C |
| 2007 | 18.0 C | +0.20 C |
| 2008 | 16.9 C | -0.86 C |
| 2009 | 16.8 C | -0.94 C |
| 2010 | 17.2 C | -0.55 C |
| 2011 | 17.5 C | -0.24 C |
| 2012 | 18.5 C | +0.69 C |
| 2013 | 16.5 C | -1.24 C |
| 2014 | 16.0 C | -1.82 C |
| 2017 | 18.1 C | +0.32 C |
| 2018 | 17.2 C | -0.62 C |
| 2019 | 17.5 C | -0.24 C |
| 2020 | 18.2 C | +0.41 C |
| 2021 | 17.6 C | -0.23 C |
| 2022 | 17.7 C | -0.13 C |
| 2023 | 18.7 C | +0.96 C |
| 2024 | 18.7 C | +0.88 C |
| 2025 | 18.1 C | +0.36 C |
The fitted trend in annual mean temperature here over 1911 to 2025 is -0.03 C (-0.08 to 0.02) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.06 F (-0.14 to 0.03) per decade. The slope is a straight line fitted to 96 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.03 C (-0.08 to 0.02) per decade | -0.06 F (-0.14 to 0.03) per decade | 1911 to 2025 | 96 | Not clearly different from zero |
| Mean daily maximum | -0.09 C (-0.15 to -0.03) per decade | -0.2 F (-0.3 to -0.1) per decade | 1911 to 2025 | 96 | Fall |
| Mean daily minimum | 0.03 C (-0.02 to 0.08) per decade | 0.05 F (-0.04 to 0.14) per decade | 1911 to 2025 | 96 | 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
1909 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 43.3 C (109.9 F) | 1909 | 37.8 C (100.0 F) | 115 |
| Coldest night (TNn) | -20.0 C (-4.0 F) | 1930 | -9.4 C (15.1 F) | 115 |
| Wettest day (Rx1day) | 256.0 mm (10.1 in) | 2016 | 86.4 mm (3.4 in) | 115 |
| Wettest five days (Rx5day) | 442.7 mm (17.4 in) | 2016 | 141.5 mm (5.6 in) | 115 |
| Longest dry spell (CDD) | 52 days | 1952 | 23 days | 115 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1909 | 43.3 C (109.9 F) |
| 1910 | 36.1 C (97.0 F) |
| 1911 | 38.9 C (102.0 F) |
| 1912 | 37.2 C (99.0 F) |
| 1913 | 40.6 C (105.1 F) |
| 1914 | 41.1 C (106.0 F) |
| 1915 | 41.1 C (106.0 F) |
| 1916 | 36.7 C (98.1 F) |
| 1917 | 38.3 C (100.9 F) |
| 1918 | 40.6 C (105.1 F) |
| 1919 | 38.9 C (102.0 F) |
| 1920 | 37.2 C (99.0 F) |
| 1921 | 40.0 C (104.0 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 37.8 C (100.0 F) |
| 1924 | 41.7 C (107.1 F) |
| 1925 | 41.1 C (106.0 F) |
| 1926 | 41.7 C (107.1 F) |
| 1927 | 38.3 C (100.9 F) |
| 1928 | 37.8 C (100.0 F) |
| 1929 | 37.2 C (99.0 F) |
| 1930 | 41.7 C (107.1 F) |
| 1931 | 40.0 C (104.0 F) |
| 1932 | 37.8 C (100.0 F) |
| 1933 | 39.4 C (102.9 F) |
| 1934 | 40.0 C (104.0 F) |
| 1935 | 40.6 C (105.1 F) |
| 1936 | 41.1 C (106.0 F) |
| 1937 | 36.7 C (98.1 F) |
| 1938 | 37.8 C (100.0 F) |
| 1939 | 37.8 C (100.0 F) |
| 1940 | 36.1 C (97.0 F) |
| 1941 | 36.1 C (97.0 F) |
| 1942 | 38.3 C (100.9 F) |
| 1943 | 41.7 C (107.1 F) |
| 1944 | 41.7 C (107.1 F) |
| 1945 | 36.7 C (98.1 F) |
| 1946 | 36.1 C (97.0 F) |
| 1947 | 40.6 C (105.1 F) |
| 1948 | 37.8 C (100.0 F) |
| 1949 | 35.6 C (96.1 F) |
| 1950 | 35.0 C (95.0 F) |
| 1951 | 40.6 C (105.1 F) |
| 1952 | 41.1 C (106.0 F) |
| 1953 | 38.3 C (100.9 F) |
| 1954 | 42.8 C (109.0 F) |
| 1955 | 36.7 C (98.1 F) |
| 1956 | 38.9 C (102.0 F) |
| 1957 | 36.7 C (98.1 F) |
| 1958 | 35.6 C (96.1 F) |
| 1959 | 36.1 C (97.0 F) |
| 1960 | 37.8 C (100.0 F) |
| 1961 | 34.4 C (93.9 F) |
| 1962 | 37.8 C (100.0 F) |
| 1963 | 37.8 C (100.0 F) |
| 1964 | 39.4 C (102.9 F) |
| 1965 | 36.7 C (98.1 F) |
| 1966 | 37.8 C (100.0 F) |
| 1967 | 35.0 C (95.0 F) |
| 1968 | 33.3 C (91.9 F) |
| 1972 | 37.2 C (99.0 F) |
| 1973 | 36.7 C (98.1 F) |
| 1974 | 37.2 C (99.0 F) |
| 1975 | 35.0 C (95.0 F) |
| 1976 | 37.2 C (99.0 F) |
| 1977 | 37.8 C (100.0 F) |
| 1978 | 38.3 C (100.9 F) |
| 1979 | 36.7 C (98.1 F) |
| 1980 | 40.6 C (105.1 F) |
| 1981 | 37.8 C (100.0 F) |
| 1982 | 36.7 C (98.1 F) |
| 1983 | 39.4 C (102.9 F) |
| 1984 | 35.6 C (96.1 F) |
| 1985 | 37.8 C (100.0 F) |
| 1986 | 41.1 C (106.0 F) |
| 1987 | 39.4 C (102.9 F) |
| 1988 | 39.4 C (102.9 F) |
| 1989 | 37.2 C (99.0 F) |
| 1990 | 38.9 C (102.0 F) |
| 1991 | 37.8 C (100.0 F) |
| 1992 | 36.1 C (97.0 F) |
| 1993 | 37.8 C (100.0 F) |
| 1994 | 36.1 C (97.0 F) |
| 1995 | 41.1 C (106.0 F) |
| 1996 | 36.7 C (98.1 F) |
| 1997 | 38.3 C (100.9 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 39.4 C (102.9 F) |
| 2000 | 42.2 C (108.0 F) |
| 2001 | 35.6 C (96.1 F) |
| 2002 | 36.1 C (97.0 F) |
| 2003 | 36.7 C (98.1 F) |
| 2004 | 35.0 C (95.0 F) |
| 2005 | 38.3 C (100.9 F) |
| 2006 | 39.4 C (102.9 F) |
| 2007 | 38.3 C (100.9 F) |
| 2008 | 38.3 C (100.9 F) |
| 2009 | 37.8 C (100.0 F) |
| 2010 | 39.4 C (102.9 F) |
| 2011 | 39.4 C (102.9 F) |
| 2012 | 38.9 C (102.0 F) |
| 2013 | 37.2 C (99.0 F) |
| 2014 | 35.0 C (95.0 F) |
| 2015 | 37.2 C (99.0 F) |
| 2016 | 37.2 C (99.0 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 36.1 C (97.0 F) |
| 2019 | 38.9 C (102.0 F) |
| 2020 | 36.1 C (97.0 F) |
| 2021 | 36.7 C (98.1 F) |
| 2022 | 39.4 C (102.9 F) |
| 2023 | 40.0 C (104.0 F) |
| 2024 | 40.6 C (105.1 F) |
| 2025 | 38.3 C (100.9 F) |
| 2026 | 41.7 C (107.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1909 | -10.0 C (14.0 F) |
| 1910 | -10.6 C (12.9 F) |
| 1911 | -12.8 C (9.0 F) |
| 1912 | -11.7 C (10.9 F) |
| 1913 | -6.1 C (21.0 F) |
| 1914 | -9.4 C (15.1 F) |
| 1915 | -6.7 C (19.9 F) |
| 1916 | -10.6 C (12.9 F) |
| 1917 | -12.8 C (9.0 F) |
| 1918 | -18.9 C (-2.0 F) |
| 1919 | -11.1 C (12.0 F) |
| 1920 | -6.7 C (19.9 F) |
| 1921 | -3.9 C (25.0 F) |
| 1922 | -4.4 C (24.1 F) |
| 1923 | -7.2 C (19.0 F) |
| 1924 | -11.7 C (10.9 F) |
| 1925 | -11.1 C (12.0 F) |
| 1926 | -7.8 C (18.0 F) |
| 1927 | -10.0 C (14.0 F) |
| 1928 | -12.2 C (10.0 F) |
| 1929 | -15.0 C (5.0 F) |
| 1930 | -20.0 C (-4.0 F) |
| 1931 | -6.1 C (21.0 F) |
| 1932 | -10.0 C (14.0 F) |
| 1933 | -13.3 C (8.1 F) |
| 1934 | -8.3 C (17.1 F) |
| 1935 | -11.7 C (10.9 F) |
| 1936 | -18.3 C (-0.9 F) |
| 1937 | -9.4 C (15.1 F) |
| 1938 | -8.9 C (16.0 F) |
| 1939 | -7.2 C (19.0 F) |
| 1940 | -17.8 C (0.0 F) |
| 1941 | -7.2 C (19.0 F) |
| 1942 | -7.2 C (19.0 F) |
| 1943 | -13.3 C (8.1 F) |
| 1944 | -8.3 C (17.1 F) |
| 1945 | -8.3 C (17.1 F) |
| 1946 | -8.3 C (17.1 F) |
| 1947 | -8.3 C (17.1 F) |
| 1948 | -15.0 C (5.0 F) |
| 1949 | -15.6 C (3.9 F) |
| 1950 | -7.8 C (18.0 F) |
| 1951 | -16.7 C (1.9 F) |
| 1952 | -5.0 C (23.0 F) |
| 1953 | -8.3 C (17.1 F) |
| 1954 | -5.6 C (21.9 F) |
| 1955 | -8.3 C (17.1 F) |
| 1956 | -6.7 C (19.9 F) |
| 1957 | -8.9 C (16.0 F) |
| 1958 | -11.1 C (12.0 F) |
| 1959 | -8.9 C (16.0 F) |
| 1960 | -7.2 C (19.0 F) |
| 1961 | -8.3 C (17.1 F) |
| 1962 | -19.4 C (-2.9 F) |
| 1963 | -16.1 C (3.0 F) |
| 1964 | -10.6 C (12.9 F) |
| 1965 | -10.0 C (14.0 F) |
| 1966 | -14.4 C (6.1 F) |
| 1967 | -7.8 C (18.0 F) |
| 1968 | -9.4 C (15.1 F) |
| 1972 | -5.6 C (21.9 F) |
| 1973 | -6.7 C (19.9 F) |
| 1974 | -6.1 C (21.0 F) |
| 1975 | -7.8 C (18.0 F) |
| 1976 | -10.6 C (12.9 F) |
| 1977 | -13.3 C (8.1 F) |
| 1978 | -12.2 C (10.0 F) |
| 1979 | -11.7 C (10.9 F) |
| 1980 | -7.2 C (19.0 F) |
| 1981 | -10.0 C (14.0 F) |
| 1982 | -15.6 C (3.9 F) |
| 1983 | -15.6 C (3.9 F) |
| 1984 | -9.4 C (15.1 F) |
| 1985 | -15.0 C (5.0 F) |
| 1986 | -7.2 C (19.0 F) |
| 1987 | -4.4 C (24.1 F) |
| 1988 | -9.4 C (15.1 F) |
| 1989 | -17.8 C (0.0 F) |
| 1990 | -12.2 C (10.0 F) |
| 1991 | -8.9 C (16.0 F) |
| 1992 | -9.4 C (15.1 F) |
| 1993 | -6.7 C (19.9 F) |
| 1994 | -10.6 C (12.9 F) |
| 1995 | -11.7 C (10.9 F) |
| 1996 | -14.4 C (6.1 F) |
| 1997 | -9.4 C (15.1 F) |
| 1998 | -7.8 C (18.0 F) |
| 1999 | -7.8 C (18.0 F) |
| 2000 | -8.3 C (17.1 F) |
| 2001 | -10.6 C (12.9 F) |
| 2002 | -7.2 C (19.0 F) |
| 2003 | -9.4 C (15.1 F) |
| 2004 | -7.2 C (19.0 F) |
| 2005 | -5.6 C (21.9 F) |
| 2006 | -7.8 C (18.0 F) |
| 2007 | -5.6 C (21.9 F) |
| 2008 | -7.8 C (18.0 F) |
| 2009 | -7.2 C (19.0 F) |
| 2010 | -10.0 C (14.0 F) |
| 2011 | -11.1 C (12.0 F) |
| 2012 | -6.7 C (19.9 F) |
| 2013 | -5.0 C (23.0 F) |
| 2014 | -11.1 C (12.0 F) |
| 2015 | -10.6 C (12.9 F) |
| 2016 | -7.2 C (19.0 F) |
| 2017 | -8.9 C (16.0 F) |
| 2018 | -12.8 C (9.0 F) |
| 2019 | -7.8 C (18.0 F) |
| 2020 | -4.4 C (24.1 F) |
| 2021 | -12.8 C (9.0 F) |
| 2022 | -14.4 C (6.1 F) |
| 2023 | -3.3 C (26.1 F) |
| 2024 | -12.2 C (10.0 F) |
| 2025 | -9.4 C (15.1 F) |
| 2026 | -9.4 C (15.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1909 | 79.8 mm (3.1 in) |
| 1910 | 51.3 mm (2.0 in) |
| 1911 | 133.4 mm (5.3 in) |
| 1912 | 50.3 mm (2.0 in) |
| 1913 | 79.0 mm (3.1 in) |
| 1914 | 113.8 mm (4.5 in) |
| 1915 | 106.7 mm (4.2 in) |
| 1916 | 90.2 mm (3.6 in) |
| 1917 | 43.4 mm (1.7 in) |
| 1918 | 58.4 mm (2.3 in) |
| 1919 | 85.9 mm (3.4 in) |
| 1920 | 139.2 mm (5.5 in) |
| 1921 | 100.3 mm (3.9 in) |
| 1922 | 94.0 mm (3.7 in) |
| 1923 | 78.0 mm (3.1 in) |
| 1924 | 48.8 mm (1.9 in) |
| 1925 | 120.7 mm (4.8 in) |
| 1926 | 81.3 mm (3.2 in) |
| 1927 | 101.6 mm (4.0 in) |
| 1928 | 83.1 mm (3.3 in) |
| 1929 | 79.2 mm (3.1 in) |
| 1930 | 66.0 mm (2.6 in) |
| 1931 | 66.0 mm (2.6 in) |
| 1932 | 99.6 mm (3.9 in) |
| 1933 | 135.4 mm (5.3 in) |
| 1934 | 125.7 mm (4.9 in) |
| 1935 | 78.2 mm (3.1 in) |
| 1936 | 77.5 mm (3.1 in) |
| 1937 | 68.6 mm (2.7 in) |
| 1938 | 72.4 mm (2.9 in) |
| 1939 | 96.8 mm (3.8 in) |
| 1940 | 118.1 mm (4.6 in) |
| 1941 | 167.6 mm (6.6 in) |
| 1942 | 132.1 mm (5.2 in) |
| 1943 | 88.9 mm (3.5 in) |
| 1944 | 116.8 mm (4.6 in) |
| 1945 | 99.1 mm (3.9 in) |
| 1946 | 69.9 mm (2.8 in) |
| 1947 | 50.8 mm (2.0 in) |
| 1948 | 57.2 mm (2.3 in) |
| 1949 | 69.9 mm (2.8 in) |
| 1950 | 67.3 mm (2.6 in) |
| 1951 | 50.8 mm (2.0 in) |
| 1952 | 50.8 mm (2.0 in) |
| 1953 | 50.8 mm (2.0 in) |
| 1954 | 50.8 mm (2.0 in) |
| 1955 | 55.9 mm (2.2 in) |
| 1956 | 50.8 mm (2.0 in) |
| 1957 | 83.8 mm (3.3 in) |
| 1958 | 152.4 mm (6.0 in) |
| 1959 | 78.7 mm (3.1 in) |
| 1960 | 57.2 mm (2.3 in) |
| 1961 | 88.9 mm (3.5 in) |
| 1962 | 50.8 mm (2.0 in) |
| 1963 | 52.1 mm (2.1 in) |
| 1964 | 101.6 mm (4.0 in) |
| 1965 | 95.3 mm (3.8 in) |
| 1966 | 88.9 mm (3.5 in) |
| 1967 | 91.4 mm (3.6 in) |
| 1968 | 63.5 mm (2.5 in) |
| 1972 | 94.0 mm (3.7 in) |
| 1973 | 107.7 mm (4.2 in) |
| 1974 | 170.9 mm (6.7 in) |
| 1975 | 106.7 mm (4.2 in) |
| 1976 | 81.3 mm (3.2 in) |
| 1977 | 97.3 mm (3.8 in) |
| 1978 | 173.5 mm (6.8 in) |
| 1979 | 99.6 mm (3.9 in) |
| 1980 | 86.4 mm (3.4 in) |
| 1981 | 83.8 mm (3.3 in) |
| 1982 | 160.0 mm (6.3 in) |
| 1983 | 177.8 mm (7.0 in) |
| 1984 | 142.2 mm (5.6 in) |
| 1985 | 106.7 mm (4.2 in) |
| 1986 | 69.9 mm (2.8 in) |
| 1987 | 175.3 mm (6.9 in) |
| 1988 | 54.6 mm (2.1 in) |
| 1989 | 156.2 mm (6.1 in) |
| 1990 | 71.6 mm (2.8 in) |
| 1991 | 138.9 mm (5.5 in) |
| 1992 | 73.7 mm (2.9 in) |
| 1993 | 74.9 mm (2.9 in) |
| 1994 | 84.3 mm (3.3 in) |
| 1995 | 124.5 mm (4.9 in) |
| 1996 | 71.1 mm (2.8 in) |
| 1997 | 74.4 mm (2.9 in) |
| 1998 | 71.1 mm (2.8 in) |
| 1999 | 144.8 mm (5.7 in) |
| 2000 | 110.2 mm (4.3 in) |
| 2001 | 111.8 mm (4.4 in) |
| 2002 | 71.1 mm (2.8 in) |
| 2003 | 74.2 mm (2.9 in) |
| 2004 | 108.0 mm (4.3 in) |
| 2005 | 124.5 mm (4.9 in) |
| 2006 | 82.0 mm (3.2 in) |
| 2007 | 241.3 mm (9.5 in) |
| 2008 | 209.6 mm (8.3 in) |
| 2009 | 100.6 mm (4.0 in) |
| 2010 | 41.1 mm (1.6 in) |
| 2011 | 65.5 mm (2.6 in) |
| 2012 | 85.9 mm (3.4 in) |
| 2013 | 81.3 mm (3.2 in) |
| 2014 | 105.4 mm (4.1 in) |
| 2015 | 108.5 mm (4.3 in) |
| 2016 | 256.0 mm (10.1 in) |
| 2017 | 125.5 mm (4.9 in) |
| 2018 | 156.5 mm (6.2 in) |
| 2019 | 155.4 mm (6.1 in) |
| 2020 | 118.1 mm (4.6 in) |
| 2021 | 87.9 mm (3.5 in) |
| 2022 | 64.0 mm (2.5 in) |
| 2023 | 61.2 mm (2.4 in) |
| 2024 | 85.1 mm (3.4 in) |
| 2025 | 127.8 mm (5.0 in) |
| 2026 | 53.8 mm (2.1 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1909 | 99.6 mm (3.9 in) |
| 1910 | 108.5 mm (4.3 in) |
| 1911 | 172.8 mm (6.8 in) |
| 1912 | 103.4 mm (4.1 in) |
| 1913 | 111.5 mm (4.4 in) |
| 1914 | 157.8 mm (6.2 in) |
| 1915 | 119.6 mm (4.7 in) |
| 1916 | 118.6 mm (4.7 in) |
| 1917 | 78.4 mm (3.1 in) |
| 1918 | 119.6 mm (4.7 in) |
| 1919 | 100.4 mm (4.0 in) |
| 1920 | 234.9 mm (9.2 in) |
| 1921 | 109.9 mm (4.3 in) |
| 1922 | 141.8 mm (5.6 in) |
| 1923 | 144.3 mm (5.7 in) |
| 1924 | 116.8 mm (4.6 in) |
| 1925 | 206.4 mm (8.1 in) |
| 1926 | 184.7 mm (7.3 in) |
| 1927 | 139.2 mm (5.5 in) |
| 1928 | 114.6 mm (4.5 in) |
| 1929 | 160.7 mm (6.3 in) |
| 1930 | 167.3 mm (6.6 in) |
| 1931 | 157.7 mm (6.2 in) |
| 1932 | 139.0 mm (5.5 in) |
| 1933 | 211.6 mm (8.3 in) |
| 1934 | 149.3 mm (5.9 in) |
| 1935 | 140.7 mm (5.5 in) |
| 1936 | 91.5 mm (3.6 in) |
| 1937 | 119.9 mm (4.7 in) |
| 1938 | 108.3 mm (4.3 in) |
| 1939 | 155.2 mm (6.1 in) |
| 1940 | 158.2 mm (6.2 in) |
| 1941 | 210.2 mm (8.3 in) |
| 1942 | 145.8 mm (5.7 in) |
| 1943 | 88.9 mm (3.5 in) |
| 1944 | 190.5 mm (7.5 in) |
| 1945 | 204.6 mm (8.1 in) |
| 1946 | 166.4 mm (6.6 in) |
| 1947 | 111.0 mm (4.4 in) |
| 1948 | 116.9 mm (4.6 in) |
| 1949 | 124.0 mm (4.9 in) |
| 1950 | 121.9 mm (4.8 in) |
| 1951 | 102.4 mm (4.0 in) |
| 1952 | 62.2 mm (2.4 in) |
| 1953 | 153.6 mm (6.0 in) |
| 1954 | 149.6 mm (5.9 in) |
| 1955 | 151.4 mm (6.0 in) |
| 1956 | 176.5 mm (6.9 in) |
| 1957 | 193.0 mm (7.6 in) |
| 1958 | 269.8 mm (10.6 in) |
| 1959 | 106.9 mm (4.2 in) |
| 1960 | 103.7 mm (4.1 in) |
| 1961 | 222.8 mm (8.8 in) |
| 1962 | 86.3 mm (3.4 in) |
| 1963 | 79.3 mm (3.1 in) |
| 1964 | 115.7 mm (4.6 in) |
| 1965 | 141.5 mm (5.6 in) |
| 1966 | 126.4 mm (5.0 in) |
| 1967 | 106.6 mm (4.2 in) |
| 1968 | 139.7 mm (5.5 in) |
| 1972 | 102.1 mm (4.0 in) |
| 1973 | 137.6 mm (5.4 in) |
| 1974 | 192.5 mm (7.6 in) |
| 1975 | 200.5 mm (7.9 in) |
| 1976 | 109.5 mm (4.3 in) |
| 1977 | 113.0 mm (4.4 in) |
| 1978 | 212.9 mm (8.4 in) |
| 1979 | 169.4 mm (6.7 in) |
| 1980 | 132.8 mm (5.2 in) |
| 1981 | 83.8 mm (3.3 in) |
| 1982 | 284.7 mm (11.2 in) |
| 1983 | 177.8 mm (7.0 in) |
| 1984 | 168.4 mm (6.6 in) |
| 1985 | 169.0 mm (6.7 in) |
| 1986 | 130.9 mm (5.2 in) |
| 1987 | 175.3 mm (6.9 in) |
| 1988 | 100.3 mm (3.9 in) |
| 1989 | 353.3 mm (13.9 in) |
| 1990 | 161.7 mm (6.4 in) |
| 1991 | 274.3 mm (10.8 in) |
| 1992 | 112.8 mm (4.4 in) |
| 1993 | 100.9 mm (4.0 in) |
| 1994 | 124.9 mm (4.9 in) |
| 1995 | 251.0 mm (9.9 in) |
| 1996 | 101.0 mm (4.0 in) |
| 1997 | 132.1 mm (5.2 in) |
| 1998 | 121.4 mm (4.8 in) |
| 1999 | 177.8 mm (7.0 in) |
| 2000 | 171.2 mm (6.7 in) |
| 2001 | 204.1 mm (8.0 in) |
| 2002 | 115.4 mm (4.5 in) |
| 2003 | 109.3 mm (4.3 in) |
| 2004 | 180.6 mm (7.1 in) |
| 2005 | 124.5 mm (4.9 in) |
| 2006 | 110.0 mm (4.3 in) |
| 2007 | 318.1 mm (12.5 in) |
| 2008 | 286.6 mm (11.3 in) |
| 2009 | 142.3 mm (5.6 in) |
| 2010 | 59.4 mm (2.3 in) |
| 2011 | 99.8 mm (3.9 in) |
| 2012 | 124.8 mm (4.9 in) |
| 2013 | 170.9 mm (6.7 in) |
| 2014 | 161.6 mm (6.4 in) |
| 2015 | 149.8 mm (5.9 in) |
| 2016 | 442.7 mm (17.4 in) |
| 2017 | 185.2 mm (7.3 in) |
| 2018 | 197.4 mm (7.8 in) |
| 2019 | 276.4 mm (10.9 in) |
| 2020 | 164.4 mm (6.5 in) |
| 2021 | 169.0 mm (6.7 in) |
| 2022 | 88.3 mm (3.5 in) |
| 2023 | 92.2 mm (3.6 in) |
| 2024 | 153.0 mm (6.0 in) |
| 2025 | 256.4 mm (10.1 in) |
| 2026 | 78.7 mm (3.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1909 | 22 days |
| 1910 | 24 days |
| 1911 | 23 days |
| 1912 | 25 days |
| 1913 | 29 days |
| 1914 | 26 days |
| 1915 | 22 days |
| 1916 | 20 days |
| 1917 | 20 days |
| 1918 | 26 days |
| 1919 | 14 days |
| 1920 | 22 days |
| 1921 | 38 days |
| 1922 | 26 days |
| 1923 | 24 days |
| 1924 | 46 days |
| 1925 | 38 days |
| 1926 | 17 days |
| 1927 | 25 days |
| 1928 | 45 days |
| 1929 | 22 days |
| 1930 | 24 days |
| 1931 | 46 days |
| 1932 | 21 days |
| 1933 | 16 days |
| 1934 | 16 days |
| 1935 | 24 days |
| 1936 | 24 days |
| 1937 | 17 days |
| 1938 | 19 days |
| 1939 | 21 days |
| 1940 | 21 days |
| 1941 | 21 days |
| 1942 | 41 days |
| 1943 | 29 days |
| 1944 | 33 days |
| 1945 | 16 days |
| 1946 | 27 days |
| 1947 | 27 days |
| 1948 | 23 days |
| 1949 | 23 days |
| 1950 | 12 days |
| 1951 | 31 days |
| 1952 | 52 days |
| 1953 | 42 days |
| 1954 | 34 days |
| 1955 | 16 days |
| 1956 | 20 days |
| 1957 | 16 days |
| 1958 | 26 days |
| 1959 | 20 days |
| 1960 | 17 days |
| 1961 | 16 days |
| 1962 | 18 days |
| 1963 | 28 days |
| 1964 | 18 days |
| 1965 | 30 days |
| 1966 | 22 days |
| 1967 | 16 days |
| 1968 | 12 days |
| 1972 | 18 days |
| 1973 | 20 days |
| 1974 | 22 days |
| 1975 | 21 days |
| 1976 | 42 days |
| 1977 | 20 days |
| 1978 | 23 days |
| 1979 | 31 days |
| 1980 | 31 days |
| 1981 | 23 days |
| 1982 | 38 days |
| 1983 | 25 days |
| 1984 | 21 days |
| 1985 | 23 days |
| 1986 | 30 days |
| 1987 | 36 days |
| 1988 | 30 days |
| 1989 | 22 days |
| 1990 | 19 days |
| 1991 | 22 days |
| 1992 | 19 days |
| 1993 | 36 days |
| 1994 | 17 days |
| 1995 | 30 days |
| 1996 | 22 days |
| 1997 | 18 days |
| 1998 | 26 days |
| 1999 | 18 days |
| 2000 | 40 days |
| 2001 | 25 days |
| 2002 | 15 days |
| 2003 | 22 days |
| 2004 | 46 days |
| 2005 | 37 days |
| 2006 | 20 days |
| 2007 | 27 days |
| 2008 | 32 days |
| 2009 | 25 days |
| 2010 | 37 days |
| 2011 | 18 days |
| 2012 | 24 days |
| 2013 | 17 days |
| 2014 | 18 days |
| 2015 | 33 days |
| 2016 | 23 days |
| 2017 | 25 days |
| 2018 | 11 days |
| 2019 | 22 days |
| 2020 | 16 days |
| 2021 | 16 days |
| 2022 | 31 days |
| 2023 | 26 days |
| 2024 | 37 days |
| 2025 | 17 days |
| 2026 | 22 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
96 years with a frostAcross 96 years with a frost, the median last spring frost at Portland falls on 17 March and the median first autumn frost on 7 November, which leaves a median of 233 days between them.
In 1990 to 2025 the median growing season was 239 days. That is 10 days more than in 1911 to 1941.
Fitted over all years, the growing season changes by +1.5 days per decade at this station.
| Measure | Median, all years | Earliest period (1911 to 1941) | Recent period (1990 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 17 March | 20 March | 15 March | 5 days earlier | -0.6 days per decade |
| First autumn frost | 7 November | 3 November | 7 November | 4 days later | +0.9 days per decade |
| Growing days | 233 days | 229 days | 239 days | 10 days more | +1.5 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
107 years, 1910 to 2025A day with at least 88.7 mm (3.5 in) of rain is expected about once in 2 years. A day with at least 240.8 mm (9.5 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 88.7 mm (3.5 in) | |
| 5 years | 123.9 mm (4.9 in) | |
| 10 years | 149.2 mm (5.9 in) | |
| 25 years | 183.8 mm (7.2 in) | |
| 50 years | 211.5 mm (8.3 in) | |
| 100 years | 240.8 mm (9.5 in) |
The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 107 years of values from 1910 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: 256.0 mm (10.1 in) in 2016; 241.3 mm (9.5 in) in 2007; 209.6 mm (8.3 in) in 2008.
Climate Twins
2009 to 2025 against 1961 to 1990Over 2009 to 2025, Portland had a mean temperature of 17.6 C (63.7 F) and 1,456.6 mm (57.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Greenwood Leflore AP (United States, 134 km away), Prescott 2 NNW (United States, 186 km away) and Tuscaloosa AP ASOS (United States, 362 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Greenwood Leflore AP | United States | 134 km (83 mi) | 17.5 C (63.5 F) | 1,383.9 mm (54.5 in) | 0.55 |
| Prescott 2 NNW | United States | 186 km (116 mi) | 17.4 C (63.3 F) | 1,405.3 mm (55.3 in) | 0.59 |
| Tuscaloosa AP ASOS | United States | 362 km (225 mi) | 17.4 C (63.2 F) | 1,392.0 mm (54.8 in) | 0.64 |
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).