Crater Lake Nps HQ Weather Records (USC00351946)
Record envelope, standing records and threshold days for Crater Lake Nps HQ (USC00351946), Oregon, United States, with 108 years of record.
Key Facts for Crater Lake Nps HQ
- Crater Lake Nps HQ (USC00351946) is a weather station in Oregon, United States at 42.90 latitude and -122.13 longitude, 1,977 m (6,485 ft) above sea level.
- The station reports from 1919 to 2026, 108 years of record.
- 1,464 records set at Crater Lake Nps HQ still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Crater Lake Nps HQ set a daily record high minimum temperature of 8.9 C (48.0 F) on 9 October 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Oregon, United States, 42.90 latitude, -122.13 longitude.
- Elevation: 1,977 m (6,485 ft).
- Period of record: 1919 to 2026, 108 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
2 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 17.8 C (64.0 F) | -29.4 C (-20.9 F) | 13.3 C (55.9 F) | -9.4 C (15.1 F) |
| Feb | 18.9 C (66.0 F) | -27.8 C (-18.0 F) | 13.9 C (57.0 F) | -13.3 C (8.1 F) |
| Mar | 19.4 C (66.9 F) | -21.7 C (-7.1 F) | 16.1 C (61.0 F) | -8.9 C (16.0 F) |
| Apr | 21.7 C (71.1 F) | -19.4 C (-2.9 F) | 14.4 C (57.9 F) | -10.0 C (14.0 F) |
| May | 26.7 C (80.1 F) | -15.0 C (5.0 F) | 20.0 C (68.0 F) | -5.0 C (23.0 F) |
| Jun | 35.0 C (95.0 F) | -12.2 C (10.0 F) | 26.1 C (79.0 F) | -3.3 C (26.1 F) |
| Jul | 37.8 C (100.0 F) | -7.8 C (18.0 F) | 25.6 C (78.1 F) | 0.0 C (32.0 F) |
| Aug | 34.4 C (93.9 F) | -8.9 C (16.0 F) | 27.8 C (82.0 F) | 1.1 C (34.0 F) |
| Sep | 33.9 C (93.0 F) | -8.9 C (16.0 F) | 22.8 C (73.0 F) | -1.1 C (30.0 F) |
| Oct | 27.2 C (81.0 F) | -16.1 C (3.0 F) | 23.9 C (75.0 F) | -3.3 C (26.1 F) |
| Nov | 21.7 C (71.1 F) | -21.7 C (-7.1 F) | n/a | n/a |
| Dec | 17.8 C (64.0 F) | -27.8 C (-18.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1919 | 13 |
| 1920 | 56 |
| 1921 | 30 |
| 1922 | 64 |
| 1923 | 9 |
| 1924 | 39 |
| 1925 | 14 |
| 1926 | 7 |
| 1927 | 35 |
| 1928 | 23 |
| 1929 | 13 |
| 1930 | 14 |
| 1931 | 20 |
| 1932 | 13 |
| 1933 | 18 |
| 1934 | 28 |
| 1935 | 21 |
| 1936 | 24 |
| 1937 | 16 |
| 1938 | 13 |
| 1939 | 20 |
| 1940 | 15 |
| 1941 | 5 |
| 1942 | 4 |
| 1943 | 3 |
| 1944 | 1 |
| 1946 | 2 |
| 1947 | 18 |
| 1948 | 12 |
| 1949 | 22 |
| 1950 | 21 |
| 1951 | 9 |
| 1952 | 11 |
| 1953 | 5 |
| 1954 | 24 |
| 1955 | 32 |
| 1956 | 24 |
| 1957 | 10 |
| 1958 | 13 |
| 1959 | 8 |
| 1960 | 11 |
| 1961 | 6 |
| 1962 | 28 |
| 1963 | 12 |
| 1964 | 10 |
| 1965 | 9 |
| 1966 | 15 |
| 1967 | 13 |
| 1968 | 11 |
| 1969 | 9 |
| 1970 | 7 |
| 1971 | 19 |
| 1972 | 18 |
| 1973 | 6 |
| 1974 | 24 |
| 1975 | 20 |
| 1976 | 10 |
| 1977 | 17 |
| 1978 | 6 |
| 1979 | 8 |
| 1980 | 15 |
| 1981 | 14 |
| 1982 | 2 |
| 1983 | 13 |
| 1984 | 5 |
| 1985 | 15 |
| 1986 | 12 |
| 1987 | 8 |
| 1988 | 8 |
| 1989 | 12 |
| 1990 | 11 |
| 1991 | 10 |
| 1992 | 18 |
| 1993 | 12 |
| 1994 | 11 |
| 1995 | 12 |
| 1996 | 5 |
| 1998 | 4 |
| 1999 | 9 |
| 2000 | 3 |
| 2001 | 6 |
| 2002 | 8 |
| 2003 | 12 |
| 2004 | 5 |
| 2005 | 6 |
| 2006 | 10 |
| 2007 | 7 |
| 2008 | 14 |
| 2009 | 10 |
| 2010 | 10 |
| 2011 | 15 |
| 2012 | 11 |
| 2013 | 7 |
| 2014 | 6 |
| 2015 | 21 |
| 2016 | 9 |
| 2017 | 15 |
| 2018 | 9 |
| 2019 | 3 |
| 2020 | 11 |
| 2021 | 20 |
| 2022 | 19 |
| 2023 | 8 |
| 2024 | 10 |
| 2025 | 11 |
| 2026 | 14 |
All-Time Record Progression
4 new records| Date | Kind | Detail |
|---|---|---|
| 1957-02-24 | Record daily precipitation | Record daily precipitation 299.7 mm (11.8 in) |
| 1962-01-21 | Record low minimum temperature | Record low minimum temperature -29.4 C (-20.9 F) |
| 1983-04-02 | Record snow depth | Record snow depth 619.8 cm (244.0 in) |
| 1983-04-03 | Record snow depth | Record snow depth 640.1 cm (252.0 in) |
Wettest Day of Each Month
Feb: 299.7 mm (11.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 137.4 mm (5.4 in) | 15 January 1952 |
| Feb | 299.7 mm (11.8 in) | 24 February 1957 |
| Mar | 92.7 mm (3.6 in) | 2 March 1972 |
| Apr | 106.4 mm (4.2 in) | 13 April 1937 |
| May | 63.5 mm (2.5 in) | 24 May 1953 |
| Jun | 185.4 mm (7.3 in) | 12 June 1950 |
| Jul | 43.9 mm (1.7 in) | 18 July 1987 |
| Aug | 50.8 mm (2.0 in) | 23 August 1983 |
| Sep | 111.8 mm (4.4 in) | 16 September 2006 |
| Oct | 131.3 mm (5.2 in) | 28 October 1950 |
| Nov | 107.7 mm (4.2 in) | 19 November 1996 |
| Dec | 181.1 mm (7.1 in) | 23 December 1964 |
Period of Record Coverage
1919 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1919 | 84 | 23% | No |
| 1920 | 353 | 96% | Yes |
| 1921 | 344 | 94% | Yes |
| 1922 | 360 | 99% | Yes |
| 1923 | 288 | 79% | No |
| 1924 | 361 | 99% | Yes |
| 1925 | 173 | 47% | No |
| 1926 | 60 | 16% | No |
| 1927 | 344 | 94% | Yes |
| 1928 | 144 | 39% | No |
| 1929 | 113 | 31% | No |
| 1930 | 204 | 56% | No |
| 1931 | 347 | 95% | Yes |
| 1932 | 361 | 99% | Yes |
| 1933 | 353 | 97% | Yes |
| 1934 | 360 | 99% | Yes |
| 1935 | 354 | 97% | Yes |
| 1936 | 364 | 99% | Yes |
| 1937 | 364 | 100% | Yes |
| 1938 | 364 | 100% | Yes |
| 1939 | 356 | 98% | Yes |
| 1940 | 361 | 99% | Yes |
| 1941 | 360 | 99% | Yes |
| 1942 | 310 | 85% | No |
| 1943 | 76 | 21% | No |
| 1944 | 62 | 17% | No |
| 1946 | 91 | 25% | No |
| 1947 | 363 | 99% | Yes |
| 1948 | 363 | 99% | Yes |
| 1949 | 361 | 99% | Yes |
| 1950 | 363 | 99% | Yes |
| 1951 | 357 | 98% | Yes |
| 1952 | 343 | 94% | Yes |
| 1953 | 360 | 99% | Yes |
| 1954 | 354 | 97% | Yes |
| 1955 | 356 | 98% | Yes |
| 1956 | 356 | 97% | Yes |
| 1957 | 362 | 99% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 363 | 99% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 366 | 100% | Yes |
| 1969 | 365 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 364 | 100% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 334 | 92% | Yes |
| 1974 | 365 | 100% | Yes |
| 1975 | 364 | 100% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 358 | 98% | Yes |
| 1979 | 304 | 83% | No |
| 1980 | 364 | 99% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 333 | 91% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 361 | 99% | Yes |
| 1986 | 364 | 100% | Yes |
| 1987 | 363 | 99% | Yes |
| 1988 | 364 | 99% | Yes |
| 1989 | 364 | 100% | Yes |
| 1990 | 299 | 82% | No |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 362 | 99% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 363 | 99% | Yes |
| 1996 | 363 | 99% | Yes |
| 1997 | 362 | 99% | Yes |
| 1998 | 358 | 98% | Yes |
| 1999 | 359 | 98% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 363 | 99% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 359 | 98% | Yes |
| 2004 | 363 | 99% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 361 | 99% | Yes |
| 2007 | 357 | 98% | Yes |
| 2008 | 352 | 96% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 364 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 356 | 98% | Yes |
| 2014 | 359 | 98% | Yes |
| 2015 | 358 | 98% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 362 | 99% | Yes |
| 2018 | 360 | 99% | Yes |
| 2019 | 362 | 99% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 361 | 99% | Yes |
| 2023 | 360 | 99% | Yes |
| 2024 | 323 | 88% | No |
| 2025 | 342 | 94% | Yes |
| 2026 | 260 | 71% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 9 October 2026 | Crater Lake Nps HQ, US | daily high min (Provisional) | 8.9 C (48.0 F) | 0.6 C (1.1 F) | 89 years | 37 of 100 (Notable) |
| 8 October 2026 | Crater Lake Nps HQ, US | daily high min (Provisional) | 9.4 C (48.9 F) | 1.6 C (2.9 F) | 4 years | 15 of 100 (Routine) |
| 6 October 2026 | Crater Lake Nps HQ, US | daily high min (Provisional) | 8.3 C (46.9 F) | 0.5 C (0.9 F) | 73 years | 33 of 100 (Routine) |
| 5 October 2026 | Crater Lake Nps HQ, US | daily high min (Tie, Provisional) | 8.9 C (48.0 F) | tie | 68 years | 7 of 100 (Routine) |
| 4 October 2026 | Crater Lake Nps HQ, US | daily high min (Tie, Provisional) | 7.8 C (46.0 F) | tie | 68 years | 7 of 100 (Routine) |
| 14 September 2026 | Crater Lake Nps HQ, US | daily low max (Provisional) | 4.4 C (39.9 F) | 0.6 C (1.1 F) | 89 years | 36 of 100 (Notable) |
| 4 September 2026 | Crater Lake Nps HQ, US | daily snowfall (Provisional) | 5.6 cm (2.2 in) | 5.6 cm (2.2 in) | 104 years | 47 of 100 (Notable) |
| 4 September 2026 | Crater Lake Nps HQ, US | daily snow depth (Provisional) | 5.1 cm (2.0 in) | 5.1 cm (2.0 in) | 99 years | 20 of 100 (Routine) |
| 4 September 2026 | Crater Lake Nps HQ, US | daily low max (Provisional) | 3.3 C (37.9 F) | 2.8 C (5.0 F) | 25 years | 21 of 100 (Routine) |
| 3 September 2026 | Crater Lake Nps HQ, US | daily rain (Provisional) | 36.8 mm (1.4 in) | 24.1 mm (0.9 in) | 25 years | 37 of 100 (Notable) |
| 6 August 2026 | Crater Lake Nps HQ, US | daily high min | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 99 years | 40 of 100 (Notable) |
| 20 July 2026 | Crater Lake Nps HQ, US | daily high min | 12.8 C (55.0 F) | 0.6 C (1.1 F) | 88 years | 37 of 100 (Notable) |
| 28 June 2026 | Crater Lake Nps HQ, US | daily low max | 3.3 C (37.9 F) | 0.6 C (1.1 F) | 56 years | 28 of 100 (Routine) |
| 20 June 2026 | Crater Lake Nps HQ, US | daily high min | 9.4 C (48.9 F) | 0.5 C (0.9 F) | 4 years | 12 of 100 (Routine) |
| 14 June 2026 | Crater Lake Nps HQ, US | daily high min | 8.3 C (46.9 F) | 0.5 C (0.9 F) | 95 years | 39 of 100 (Notable) |
| 29 May 2026 | Crater Lake Nps HQ, US | daily rain | 42.7 mm (1.7 in) | 5.4 mm (0.21 in) | 4 years | 17 of 100 (Routine) |
| 3 May 2026 | Crater Lake Nps HQ, US | daily high min | 4.4 C (39.9 F) | 1.1 C (2.0 F) | 36 years | 22 of 100 (Routine) |
| 2 May 2026 | Crater Lake Nps HQ, US | daily high min (Tie) | 3.3 C (37.9 F) | tie | 79 years | 8 of 100 (Routine) |
| 20 April 2026 | Crater Lake Nps HQ, US | daily high min | 3.9 C (39.0 F) | 1.7 C (3.1 F) | 84 years | 39 of 100 (Notable) |
| 16 April 2026 | Crater Lake Nps HQ, US | daily rain | 38.4 mm (1.5 in) | 8.7 mm (0.34 in) | 92 years | 46 of 100 (Notable) |
Climate Trend
87 complete years, 1920 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1920 | 3.5 C | -0.03 C |
| 1922 | 4.1 C | +0.52 C |
| 1924 | 3.5 C | -0.08 C |
| 1932 | 3.7 C | +0.13 C |
| 1933 | 3.6 C | +0.11 C |
| 1934 | 5.7 C | +2.21 C |
| 1935 | 4.0 C | +0.50 C |
| 1936 | 5.0 C | +1.44 C |
| 1937 | 3.2 C | -0.37 C |
| 1938 | 3.5 C | -0.01 C |
| 1939 | 4.9 C | +1.37 C |
| 1940 | 4.8 C | +1.25 C |
| 1941 | 4.1 C | +0.61 C |
| 1947 | 4.1 C | +0.53 C |
| 1948 | 2.7 C | -0.80 C |
| 1949 | 3.7 C | +0.19 C |
| 1950 | 3.8 C | +0.24 C |
| 1951 | 4.2 C | +0.66 C |
| 1952 | 3.7 C | +0.17 C |
| 1953 | 3.3 C | -0.24 C |
| 1954 | 3.0 C | -0.52 C |
| 1955 | 2.0 C | -1.49 C |
| 1956 | 3.4 C | -0.15 C |
| 1957 | 3.0 C | -0.54 C |
| 1958 | 4.5 C | +0.92 C |
| 1959 | 4.2 C | +0.66 C |
| 1960 | 3.5 C | -0.01 C |
| 1961 | 3.4 C | -0.09 C |
| 1962 | 3.4 C | -0.13 C |
| 1963 | 3.5 C | -0.04 C |
| 1964 | 2.6 C | -0.91 C |
| 1965 | 3.4 C | -0.18 C |
| 1966 | 3.3 C | -0.20 C |
| 1967 | 3.5 C | -0.01 C |
| 1968 | 3.0 C | -0.49 C |
| 1969 | 2.8 C | -0.70 C |
| 1970 | 2.9 C | -0.60 C |
| 1971 | 2.2 C | -1.33 C |
| 1972 | 2.7 C | -0.88 C |
| 1974 | 3.1 C | -0.48 C |
| 1975 | 2.2 C | -1.29 C |
| 1976 | 3.4 C | -0.10 C |
| 1977 | 3.3 C | -0.27 C |
| 1978 | 2.7 C | -0.84 C |
| 1980 | 3.2 C | -0.37 C |
| 1981 | 3.8 C | +0.29 C |
| 1982 | 1.8 C | -1.74 C |
| 1984 | 2.1 C | -1.40 C |
| 1985 | 3.0 C | -0.52 C |
| 1986 | 3.6 C | +0.10 C |
| 1987 | 4.1 C | +0.54 C |
| 1988 | 3.9 C | +0.41 C |
| 1989 | 3.0 C | -0.51 C |
| 1991 | 3.7 C | +0.21 C |
| 1992 | 4.8 C | +1.31 C |
| 1993 | 2.7 C | -0.81 C |
| 1994 | 3.6 C | +0.02 C |
| 1995 | 3.5 C | -0.01 C |
| 1996 | 3.5 C | -0.05 C |
| 1997 | 3.2 C | -0.29 C |
| 1998 | 3.1 C | -0.46 C |
| 1999 | 3.0 C | -0.57 C |
| 2000 | 3.5 C | -0.03 C |
| 2001 | 4.1 C | +0.53 C |
| 2002 | 4.0 C | +0.43 C |
| 2003 | 4.1 C | +0.56 C |
| 2004 | 4.1 C | +0.53 C |
| 2005 | 3.8 C | +0.29 C |
| 2006 | 3.2 C | -0.32 C |
| 2007 | 3.7 C | +0.12 C |
| 2008 | 3.0 C | -0.53 C |
| 2009 | 3.2 C | -0.29 C |
| 2010 | 2.1 C | -1.39 C |
| 2011 | 2.2 C | -1.37 C |
| 2012 | 3.0 C | -0.55 C |
| 2013 | 3.8 C | +0.23 C |
| 2014 | 4.4 C | +0.91 C |
| 2015 | 5.5 C | +1.93 C |
| 2016 | 3.2 C | -0.38 C |
| 2017 | 3.4 C | -0.11 C |
| 2018 | 3.8 C | +0.24 C |
| 2019 | 3.2 C | -0.34 C |
| 2020 | 4.4 C | +0.84 C |
| 2021 | 4.6 C | +1.08 C |
| 2022 | 4.5 C | +0.97 C |
| 2023 | 3.7 C | +0.17 C |
| 2025 | 5.0 C | +1.48 C |
The fitted trend in annual mean temperature here over 1920 to 2025 is -0.01 C (-0.07 to 0.05) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.12 to 0.08) per decade. The slope is a straight line fitted to 87 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | -0.01 C (-0.07 to 0.05) per decade | -0.02 F (-0.12 to 0.08) per decade | 1920 to 2025 | 87 | Not clearly different from zero |
| Mean daily maximum | -0.10 C (-0.18 to -0.03) per decade | -0.2 F (-0.3 to -0.1) per decade | 1920 to 2025 | 87 | Fall |
| Mean daily minimum | 0.08 C (0.02 to 0.15) per decade | 0.15 F (0.03 to 0.27) per decade | 1920 to 2025 | 87 | 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
1919 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 37.8 C (100.0 F) | 1922 | 28.3 C (82.9 F) | 107 |
| Coldest night (TNn) | -29.4 C (-20.9 F) | 1962 | -18.9 C (-2.0 F) | 107 |
| Wettest day (Rx1day) | 299.7 mm (11.8 in) | 1957 | 64.0 mm (2.5 in) | 107 |
| Wettest five days (Rx5day) | 515.2 mm (20.3 in) | 1964 | 160.8 mm (6.3 in) | 107 |
| Longest dry spell (CDD) | 97 days | 1951 | 38 days | 107 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1919 | 24.4 C (75.9 F) |
| 1920 | 34.4 C (93.9 F) |
| 1921 | 32.2 C (90.0 F) |
| 1922 | 37.8 C (100.0 F) |
| 1923 | 28.3 C (82.9 F) |
| 1924 | 32.8 C (91.0 F) |
| 1925 | 33.3 C (91.9 F) |
| 1926 | 13.3 C (55.9 F) |
| 1927 | 30.0 C (86.0 F) |
| 1928 | 18.9 C (66.0 F) |
| 1929 | 33.3 C (91.9 F) |
| 1930 | 26.1 C (79.0 F) |
| 1931 | 30.6 C (87.1 F) |
| 1932 | 30.0 C (86.0 F) |
| 1933 | 31.7 C (89.1 F) |
| 1934 | 28.9 C (84.0 F) |
| 1935 | 30.6 C (87.1 F) |
| 1936 | 31.1 C (88.0 F) |
| 1937 | 27.8 C (82.0 F) |
| 1938 | 29.4 C (84.9 F) |
| 1939 | 31.1 C (88.0 F) |
| 1940 | 29.4 C (84.9 F) |
| 1941 | 26.7 C (80.1 F) |
| 1942 | 28.9 C (84.0 F) |
| 1943 | 27.8 C (82.0 F) |
| 1944 | 27.8 C (82.0 F) |
| 1946 | 13.3 C (55.9 F) |
| 1947 | 25.6 C (78.1 F) |
| 1948 | 26.1 C (79.0 F) |
| 1949 | 27.8 C (82.0 F) |
| 1950 | 27.8 C (82.0 F) |
| 1951 | 27.8 C (82.0 F) |
| 1952 | 26.7 C (80.1 F) |
| 1953 | 30.0 C (86.0 F) |
| 1954 | 26.7 C (80.1 F) |
| 1955 | 30.0 C (86.0 F) |
| 1956 | 32.2 C (90.0 F) |
| 1957 | 24.4 C (75.9 F) |
| 1958 | 28.3 C (82.9 F) |
| 1959 | 29.4 C (84.9 F) |
| 1960 | 29.4 C (84.9 F) |
| 1961 | 31.7 C (89.1 F) |
| 1962 | 30.0 C (86.0 F) |
| 1963 | 27.2 C (81.0 F) |
| 1964 | 27.8 C (82.0 F) |
| 1965 | 26.7 C (80.1 F) |
| 1966 | 26.7 C (80.1 F) |
| 1967 | 30.0 C (86.0 F) |
| 1968 | 30.0 C (86.0 F) |
| 1969 | 27.2 C (81.0 F) |
| 1970 | 27.8 C (82.0 F) |
| 1971 | 28.3 C (82.9 F) |
| 1972 | 31.1 C (88.0 F) |
| 1973 | 28.3 C (82.9 F) |
| 1974 | 28.9 C (84.0 F) |
| 1975 | 28.9 C (84.0 F) |
| 1976 | 26.1 C (79.0 F) |
| 1977 | 30.6 C (87.1 F) |
| 1978 | 27.8 C (82.0 F) |
| 1979 | 28.3 C (82.9 F) |
| 1980 | 28.3 C (82.9 F) |
| 1981 | 32.2 C (90.0 F) |
| 1982 | 25.6 C (78.1 F) |
| 1983 | 27.8 C (82.0 F) |
| 1984 | 27.2 C (81.0 F) |
| 1985 | 27.2 C (81.0 F) |
| 1986 | 26.7 C (80.1 F) |
| 1987 | 28.9 C (84.0 F) |
| 1988 | 30.6 C (87.1 F) |
| 1989 | 25.6 C (78.1 F) |
| 1990 | 30.0 C (86.0 F) |
| 1991 | 27.2 C (81.0 F) |
| 1992 | 30.6 C (87.1 F) |
| 1993 | 26.1 C (79.0 F) |
| 1994 | 30.0 C (86.0 F) |
| 1995 | 26.1 C (79.0 F) |
| 1996 | 29.4 C (84.9 F) |
| 1997 | 27.2 C (81.0 F) |
| 1998 | 28.9 C (84.0 F) |
| 1999 | 26.7 C (80.1 F) |
| 2000 | 26.7 C (80.1 F) |
| 2001 | 30.0 C (86.0 F) |
| 2002 | 31.1 C (88.0 F) |
| 2003 | 30.6 C (87.1 F) |
| 2004 | 27.2 C (81.0 F) |
| 2005 | 27.8 C (82.0 F) |
| 2006 | 30.6 C (87.1 F) |
| 2007 | 30.6 C (87.1 F) |
| 2008 | 30.0 C (86.0 F) |
| 2009 | 29.4 C (84.9 F) |
| 2010 | 27.2 C (81.0 F) |
| 2011 | 25.0 C (77.0 F) |
| 2012 | 28.3 C (82.9 F) |
| 2013 | 28.3 C (82.9 F) |
| 2014 | 27.8 C (82.0 F) |
| 2015 | 30.0 C (86.0 F) |
| 2016 | 28.3 C (82.9 F) |
| 2017 | 29.4 C (84.9 F) |
| 2018 | 29.4 C (84.9 F) |
| 2019 | 25.6 C (78.1 F) |
| 2020 | 28.9 C (84.0 F) |
| 2021 | 31.1 C (88.0 F) |
| 2022 | 30.0 C (86.0 F) |
| 2023 | 27.8 C (82.0 F) |
| 2024 | 29.4 C (84.9 F) |
| 2025 | 27.2 C (81.0 F) |
| 2026 | 27.8 C (82.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1919 | -26.1 C (-15.0 F) |
| 1920 | -18.9 C (-2.0 F) |
| 1921 | -17.2 C (1.0 F) |
| 1922 | -28.9 C (-20.0 F) |
| 1923 | -20.0 C (-4.0 F) |
| 1924 | -27.8 C (-18.0 F) |
| 1925 | -17.8 C (0.0 F) |
| 1926 | -16.1 C (3.0 F) |
| 1927 | -17.8 C (0.0 F) |
| 1928 | -13.3 C (8.1 F) |
| 1929 | -14.4 C (6.1 F) |
| 1930 | -25.6 C (-14.1 F) |
| 1931 | -19.4 C (-2.9 F) |
| 1932 | -22.8 C (-9.0 F) |
| 1933 | -27.8 C (-18.0 F) |
| 1934 | -13.9 C (7.0 F) |
| 1935 | -17.8 C (0.0 F) |
| 1936 | -17.8 C (0.0 F) |
| 1937 | -23.9 C (-11.0 F) |
| 1938 | -18.3 C (-0.9 F) |
| 1939 | -17.8 C (0.0 F) |
| 1940 | -16.1 C (3.0 F) |
| 1941 | -17.8 C (0.0 F) |
| 1942 | -20.0 C (-4.0 F) |
| 1943 | -3.3 C (26.1 F) |
| 1944 | -2.2 C (28.0 F) |
| 1946 | -16.1 C (3.0 F) |
| 1947 | -18.9 C (-2.0 F) |
| 1948 | -22.8 C (-9.0 F) |
| 1949 | -25.6 C (-14.1 F) |
| 1950 | -23.3 C (-9.9 F) |
| 1951 | -20.6 C (-5.1 F) |
| 1952 | -20.0 C (-4.0 F) |
| 1953 | -17.2 C (1.0 F) |
| 1954 | -20.0 C (-4.0 F) |
| 1955 | -21.7 C (-7.1 F) |
| 1956 | -21.7 C (-7.1 F) |
| 1957 | -20.0 C (-4.0 F) |
| 1958 | -17.8 C (0.0 F) |
| 1959 | -20.6 C (-5.1 F) |
| 1960 | -20.6 C (-5.1 F) |
| 1961 | -20.0 C (-4.0 F) |
| 1962 | -29.4 C (-20.9 F) |
| 1963 | -22.8 C (-9.0 F) |
| 1964 | -17.8 C (0.0 F) |
| 1965 | -17.8 C (0.0 F) |
| 1966 | -20.0 C (-4.0 F) |
| 1967 | -18.3 C (-0.9 F) |
| 1968 | -17.2 C (1.0 F) |
| 1969 | -22.2 C (-8.0 F) |
| 1970 | -18.3 C (-0.9 F) |
| 1971 | -21.7 C (-7.1 F) |
| 1972 | -22.2 C (-8.0 F) |
| 1973 | -18.3 C (-0.9 F) |
| 1974 | -21.7 C (-7.1 F) |
| 1975 | -18.3 C (-0.9 F) |
| 1976 | -19.4 C (-2.9 F) |
| 1977 | -20.0 C (-4.0 F) |
| 1978 | -18.9 C (-2.0 F) |
| 1979 | -22.2 C (-8.0 F) |
| 1980 | -22.8 C (-9.0 F) |
| 1981 | -16.7 C (1.9 F) |
| 1982 | -21.1 C (-6.0 F) |
| 1983 | -24.4 C (-11.9 F) |
| 1984 | -16.7 C (1.9 F) |
| 1985 | -19.4 C (-2.9 F) |
| 1986 | -17.8 C (0.0 F) |
| 1987 | -18.3 C (-0.9 F) |
| 1988 | -17.2 C (1.0 F) |
| 1989 | -25.0 C (-13.0 F) |
| 1990 | -25.0 C (-13.0 F) |
| 1991 | -13.9 C (7.0 F) |
| 1992 | -15.0 C (5.0 F) |
| 1993 | -22.8 C (-9.0 F) |
| 1994 | -16.7 C (1.9 F) |
| 1995 | -20.0 C (-4.0 F) |
| 1996 | -18.3 C (-0.9 F) |
| 1997 | -19.4 C (-2.9 F) |
| 1998 | -22.2 C (-8.0 F) |
| 1999 | -17.8 C (0.0 F) |
| 2000 | -17.8 C (0.0 F) |
| 2001 | -16.7 C (1.9 F) |
| 2002 | -18.3 C (-0.9 F) |
| 2003 | -17.2 C (1.0 F) |
| 2004 | -14.4 C (6.1 F) |
| 2005 | -15.6 C (3.9 F) |
| 2006 | -18.3 C (-0.9 F) |
| 2007 | -19.4 C (-2.9 F) |
| 2008 | -18.9 C (-2.0 F) |
| 2009 | -21.1 C (-6.0 F) |
| 2010 | -18.9 C (-2.0 F) |
| 2011 | -20.6 C (-5.1 F) |
| 2012 | -16.1 C (3.0 F) |
| 2013 | -21.7 C (-7.1 F) |
| 2014 | -15.6 C (3.9 F) |
| 2015 | -16.7 C (1.9 F) |
| 2016 | -20.6 C (-5.1 F) |
| 2017 | -18.9 C (-2.0 F) |
| 2018 | -20.0 C (-4.0 F) |
| 2019 | -17.2 C (1.0 F) |
| 2020 | -15.0 C (5.0 F) |
| 2021 | -15.6 C (3.9 F) |
| 2022 | -18.9 C (-2.0 F) |
| 2023 | -17.8 C (0.0 F) |
| 2024 | -12.8 C (9.0 F) |
| 2025 | -16.7 C (1.9 F) |
| 2026 | -13.3 C (8.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1919 | 57.7 mm (2.3 in) |
| 1920 | 48.5 mm (1.9 in) |
| 1921 | 41.9 mm (1.6 in) |
| 1922 | 50.8 mm (2.0 in) |
| 1923 | 101.6 mm (4.0 in) |
| 1924 | 56.9 mm (2.2 in) |
| 1925 | 39.4 mm (1.6 in) |
| 1926 | 51.3 mm (2.0 in) |
| 1927 | 88.6 mm (3.5 in) |
| 1928 | 49.5 mm (1.9 in) |
| 1929 | 28.4 mm (1.1 in) |
| 1930 | 35.6 mm (1.4 in) |
| 1931 | 146.1 mm (5.8 in) |
| 1932 | 61.0 mm (2.4 in) |
| 1933 | 71.9 mm (2.8 in) |
| 1934 | 64.0 mm (2.5 in) |
| 1935 | 73.7 mm (2.9 in) |
| 1936 | 70.1 mm (2.8 in) |
| 1937 | 106.4 mm (4.2 in) |
| 1938 | 58.4 mm (2.3 in) |
| 1939 | 101.6 mm (4.0 in) |
| 1940 | 82.0 mm (3.2 in) |
| 1941 | 128.5 mm (5.1 in) |
| 1942 | 64.0 mm (2.5 in) |
| 1943 | 17.5 mm (0.7 in) |
| 1944 | 27.7 mm (1.1 in) |
| 1946 | 63.0 mm (2.5 in) |
| 1947 | 51.3 mm (2.0 in) |
| 1948 | 85.1 mm (3.4 in) |
| 1949 | 63.5 mm (2.5 in) |
| 1950 | 185.4 mm (7.3 in) |
| 1951 | 117.1 mm (4.6 in) |
| 1952 | 137.4 mm (5.4 in) |
| 1953 | 63.5 mm (2.5 in) |
| 1954 | 50.3 mm (2.0 in) |
| 1955 | 112.8 mm (4.4 in) |
| 1956 | 109.5 mm (4.3 in) |
| 1957 | 299.7 mm (11.8 in) |
| 1958 | 55.6 mm (2.2 in) |
| 1959 | 56.1 mm (2.2 in) |
| 1960 | 62.7 mm (2.5 in) |
| 1961 | 64.8 mm (2.6 in) |
| 1962 | 54.9 mm (2.2 in) |
| 1963 | 67.3 mm (2.6 in) |
| 1964 | 181.1 mm (7.1 in) |
| 1965 | 56.9 mm (2.2 in) |
| 1966 | 85.3 mm (3.4 in) |
| 1967 | 55.4 mm (2.2 in) |
| 1968 | 82.6 mm (3.3 in) |
| 1969 | 65.3 mm (2.6 in) |
| 1970 | 60.2 mm (2.4 in) |
| 1971 | 112.5 mm (4.4 in) |
| 1972 | 92.7 mm (3.6 in) |
| 1973 | 69.1 mm (2.7 in) |
| 1974 | 78.7 mm (3.1 in) |
| 1975 | 62.0 mm (2.4 in) |
| 1976 | 53.3 mm (2.1 in) |
| 1977 | 60.5 mm (2.4 in) |
| 1978 | 80.0 mm (3.1 in) |
| 1979 | 80.0 mm (3.1 in) |
| 1980 | 68.1 mm (2.7 in) |
| 1981 | 78.0 mm (3.1 in) |
| 1982 | 65.0 mm (2.6 in) |
| 1983 | 69.9 mm (2.8 in) |
| 1984 | 55.9 mm (2.2 in) |
| 1985 | 70.6 mm (2.8 in) |
| 1986 | 68.3 mm (2.7 in) |
| 1987 | 53.8 mm (2.1 in) |
| 1988 | 71.9 mm (2.8 in) |
| 1989 | 54.1 mm (2.1 in) |
| 1990 | 61.0 mm (2.4 in) |
| 1991 | 63.5 mm (2.5 in) |
| 1992 | 74.9 mm (2.9 in) |
| 1993 | 59.4 mm (2.3 in) |
| 1994 | 54.6 mm (2.1 in) |
| 1995 | 66.5 mm (2.6 in) |
| 1996 | 107.7 mm (4.2 in) |
| 1997 | 88.4 mm (3.5 in) |
| 1998 | 61.0 mm (2.4 in) |
| 1999 | 52.8 mm (2.1 in) |
| 2000 | 45.2 mm (1.8 in) |
| 2001 | 45.5 mm (1.8 in) |
| 2002 | 49.5 mm (1.9 in) |
| 2003 | 46.7 mm (1.8 in) |
| 2004 | 103.6 mm (4.1 in) |
| 2005 | 49.3 mm (1.9 in) |
| 2006 | 111.8 mm (4.4 in) |
| 2007 | 88.9 mm (3.5 in) |
| 2008 | 50.8 mm (2.0 in) |
| 2009 | 48.0 mm (1.9 in) |
| 2010 | 76.2 mm (3.0 in) |
| 2011 | 57.9 mm (2.3 in) |
| 2012 | 96.5 mm (3.8 in) |
| 2013 | 100.3 mm (3.9 in) |
| 2014 | 119.6 mm (4.7 in) |
| 2015 | 66.5 mm (2.6 in) |
| 2016 | 58.9 mm (2.3 in) |
| 2017 | 49.3 mm (1.9 in) |
| 2018 | 77.5 mm (3.1 in) |
| 2019 | 69.9 mm (2.8 in) |
| 2020 | 64.0 mm (2.5 in) |
| 2021 | 46.5 mm (1.8 in) |
| 2022 | 45.7 mm (1.8 in) |
| 2023 | 63.5 mm (2.5 in) |
| 2024 | 71.1 mm (2.8 in) |
| 2025 | 55.6 mm (2.2 in) |
| 2026 | 47.0 mm (1.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1919 | 134.9 mm (5.3 in) |
| 1920 | 124.0 mm (4.9 in) |
| 1921 | 118.4 mm (4.7 in) |
| 1922 | 159.4 mm (6.3 in) |
| 1923 | 210.6 mm (8.3 in) |
| 1924 | 154.4 mm (6.1 in) |
| 1925 | 129.0 mm (5.1 in) |
| 1926 | 162.4 mm (6.4 in) |
| 1927 | 268.2 mm (10.6 in) |
| 1928 | 134.0 mm (5.3 in) |
| 1929 | 94.9 mm (3.7 in) |
| 1930 | 80.8 mm (3.2 in) |
| 1931 | 200.2 mm (7.9 in) |
| 1932 | 175.1 mm (6.9 in) |
| 1933 | 152.6 mm (6.0 in) |
| 1934 | 198.2 mm (7.8 in) |
| 1935 | 114.6 mm (4.5 in) |
| 1936 | 189.7 mm (7.5 in) |
| 1937 | 220.2 mm (8.7 in) |
| 1938 | 164.3 mm (6.5 in) |
| 1939 | 136.4 mm (5.4 in) |
| 1940 | 159.2 mm (6.3 in) |
| 1941 | 202.4 mm (8.0 in) |
| 1942 | 150.1 mm (5.9 in) |
| 1943 | 24.7 mm (1.0 in) |
| 1944 | 58.9 mm (2.3 in) |
| 1946 | 173.1 mm (6.8 in) |
| 1947 | 125.5 mm (4.9 in) |
| 1948 | 191.1 mm (7.5 in) |
| 1949 | 123.2 mm (4.9 in) |
| 1950 | 281.5 mm (11.1 in) |
| 1951 | 243.9 mm (9.6 in) |
| 1952 | 165.0 mm (6.5 in) |
| 1953 | 159.2 mm (6.3 in) |
| 1954 | 138.9 mm (5.5 in) |
| 1955 | 228.6 mm (9.0 in) |
| 1956 | 259.5 mm (10.2 in) |
| 1957 | 391.9 mm (15.4 in) |
| 1958 | 154.5 mm (6.1 in) |
| 1959 | 123.7 mm (4.9 in) |
| 1960 | 148.5 mm (5.8 in) |
| 1961 | 181.3 mm (7.1 in) |
| 1962 | 192.4 mm (7.6 in) |
| 1963 | 175.6 mm (6.9 in) |
| 1964 | 515.2 mm (20.3 in) |
| 1965 | 156.3 mm (6.2 in) |
| 1966 | 219.4 mm (8.6 in) |
| 1967 | 150.6 mm (5.9 in) |
| 1968 | 172.8 mm (6.8 in) |
| 1969 | 159.8 mm (6.3 in) |
| 1970 | 156.1 mm (6.1 in) |
| 1971 | 270.9 mm (10.7 in) |
| 1972 | 182.1 mm (7.2 in) |
| 1973 | 190.0 mm (7.5 in) |
| 1974 | 214.8 mm (8.5 in) |
| 1975 | 135.7 mm (5.3 in) |
| 1976 | 170.1 mm (6.7 in) |
| 1977 | 223.6 mm (8.8 in) |
| 1978 | 142.7 mm (5.6 in) |
| 1979 | 151.9 mm (6.0 in) |
| 1980 | 198.4 mm (7.8 in) |
| 1981 | 160.8 mm (6.3 in) |
| 1982 | 183.9 mm (7.2 in) |
| 1983 | 157.5 mm (6.2 in) |
| 1984 | 136.4 mm (5.4 in) |
| 1985 | 123.9 mm (4.9 in) |
| 1986 | 180.3 mm (7.1 in) |
| 1987 | 142.4 mm (5.6 in) |
| 1988 | 194.1 mm (7.6 in) |
| 1989 | 124.9 mm (4.9 in) |
| 1990 | 119.5 mm (4.7 in) |
| 1991 | 163.3 mm (6.4 in) |
| 1992 | 203.9 mm (8.0 in) |
| 1993 | 135.4 mm (5.3 in) |
| 1994 | 134.4 mm (5.3 in) |
| 1995 | 183.3 mm (7.2 in) |
| 1996 | 199.2 mm (7.8 in) |
| 1997 | 219.7 mm (8.6 in) |
| 1998 | 180.9 mm (7.1 in) |
| 1999 | 119.4 mm (4.7 in) |
| 2000 | 157.7 mm (6.2 in) |
| 2001 | 126.0 mm (5.0 in) |
| 2002 | 187.1 mm (7.4 in) |
| 2003 | 144.4 mm (5.7 in) |
| 2004 | 210.5 mm (8.3 in) |
| 2005 | 197.4 mm (7.8 in) |
| 2006 | 178.8 mm (7.0 in) |
| 2007 | 156.9 mm (6.2 in) |
| 2008 | 153.0 mm (6.0 in) |
| 2009 | 118.4 mm (4.7 in) |
| 2010 | 128.9 mm (5.1 in) |
| 2011 | 161.0 mm (6.3 in) |
| 2012 | 175.2 mm (6.9 in) |
| 2013 | 154.1 mm (6.1 in) |
| 2014 | 259.6 mm (10.2 in) |
| 2015 | 174.2 mm (6.9 in) |
| 2016 | 180.8 mm (7.1 in) |
| 2017 | 142.6 mm (5.6 in) |
| 2018 | 144.4 mm (5.7 in) |
| 2019 | 167.1 mm (6.6 in) |
| 2020 | 163.6 mm (6.4 in) |
| 2021 | 128.7 mm (5.1 in) |
| 2022 | 176.0 mm (6.9 in) |
| 2023 | 148.0 mm (5.8 in) |
| 2024 | 234.7 mm (9.2 in) |
| 2025 | 151.3 mm (6.0 in) |
| 2026 | 92.7 mm (3.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1919 | 21 days |
| 1920 | 20 days |
| 1921 | 34 days |
| 1922 | 59 days |
| 1923 | 30 days |
| 1924 | 60 days |
| 1925 | 39 days |
| 1926 | 5 days |
| 1927 | 27 days |
| 1928 | 18 days |
| 1929 | 31 days |
| 1930 | 17 days |
| 1931 | 39 days |
| 1932 | 50 days |
| 1933 | 37 days |
| 1934 | 37 days |
| 1935 | 35 days |
| 1936 | 47 days |
| 1937 | 52 days |
| 1938 | 39 days |
| 1939 | 33 days |
| 1940 | 31 days |
| 1941 | 13 days |
| 1942 | 31 days |
| 1943 | 15 days |
| 1944 | 28 days |
| 1946 | 10 days |
| 1947 | 27 days |
| 1948 | 46 days |
| 1949 | 37 days |
| 1950 | 44 days |
| 1951 | 97 days |
| 1952 | 37 days |
| 1953 | 33 days |
| 1954 | 35 days |
| 1955 | 48 days |
| 1956 | 58 days |
| 1957 | 28 days |
| 1958 | 50 days |
| 1959 | 27 days |
| 1960 | 44 days |
| 1961 | 53 days |
| 1962 | 39 days |
| 1963 | 25 days |
| 1964 | 24 days |
| 1965 | 39 days |
| 1966 | 42 days |
| 1967 | 79 days |
| 1968 | 19 days |
| 1969 | 80 days |
| 1970 | 67 days |
| 1971 | 42 days |
| 1972 | 42 days |
| 1973 | 24 days |
| 1974 | 84 days |
| 1975 | 32 days |
| 1976 | 27 days |
| 1977 | 17 days |
| 1978 | 40 days |
| 1979 | 34 days |
| 1980 | 79 days |
| 1981 | 71 days |
| 1982 | 31 days |
| 1983 | 36 days |
| 1984 | 69 days |
| 1985 | 50 days |
| 1986 | 42 days |
| 1987 | 68 days |
| 1988 | 81 days |
| 1989 | 22 days |
| 1990 | 25 days |
| 1991 | 46 days |
| 1992 | 23 days |
| 1993 | 27 days |
| 1994 | 41 days |
| 1995 | 49 days |
| 1996 | 30 days |
| 1997 | 40 days |
| 1998 | 22 days |
| 1999 | 35 days |
| 2000 | 34 days |
| 2001 | 23 days |
| 2002 | 34 days |
| 2003 | 64 days |
| 2004 | 42 days |
| 2005 | 49 days |
| 2006 | 38 days |
| 2007 | 31 days |
| 2008 | 37 days |
| 2009 | 40 days |
| 2010 | 28 days |
| 2011 | 31 days |
| 2012 | 87 days |
| 2013 | 42 days |
| 2014 | 34 days |
| 2015 | 42 days |
| 2016 | 57 days |
| 2017 | 38 days |
| 2018 | 78 days |
| 2019 | 48 days |
| 2020 | 48 days |
| 2021 | 41 days |
| 2022 | 27 days |
| 2023 | 38 days |
| 2024 | 47 days |
| 2025 | 31 days |
| 2026 | 43 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
87 years with a frostAcross 87 years with a frost, the median last spring frost at Crater Lake Nps HQ falls on 27 June and the median first autumn frost on 8 July, which leaves a median of 13 days between them.
In 1995 to 2025 the median growing season was 41 days. That is 29 days more than in 1920 to 1963.
Fitted over all years, the growing season changes by +4.0 days per decade at this station.
| Measure | Median, all years | Earliest period (1920 to 1963) | Recent period (1995 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 27 June | 28 June | 23 June | 5 days earlier | -0.6 days per decade |
| First autumn frost | 8 July | 6 July | 30 July | 24 days later | +3.4 days per decade |
| Growing days | 13 days | 12 days | 41 days | 29 days more | +4.0 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
92 years, 1921 to 2025A day with at least 66.9 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 228.6 mm (9.0 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.9 mm (2.6 in) | |
| 5 years | 91.1 mm (3.6 in) | |
| 10 years | 112.8 mm (4.4 in) | |
| 25 years | 149.2 mm (5.9 in) | |
| 50 years | 184.5 mm (7.3 in) | |
| 100 years | 228.6 mm (9.0 in) | Longer than the 92 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, 92 years of values from 1921 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: 299.7 mm (11.8 in) in 1957; 185.4 mm (7.3 in) in 1950; 181.1 mm (7.1 in) in 1964.
Station Changes
No change in the annual mean temperature of this station was found against its neighbours.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Crater Lake Nps HQ had a mean temperature of 3.8 C (38.8 F) and 1,700.9 mm (67.0 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Kitoi Bay (United States, 2,692 km away), Zavizan (Croatia, 9,376 km away) and Burgeo (Canada, 4,930 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Kitoi Bay | United States | 2,692 km (1,673 mi) | 4.2 C (39.5 F) | 1,647.7 mm (64.9 in) | 1.42 |
| Zavizan | Croatia | 9,376 km (5,826 mi) | 3.9 C (39.0 F) | 1,899.4 mm (74.8 in) | 1.53 |
| Burgeo | Canada | 4,930 km (3,063 mi) | 4.3 C (39.8 F) | 1,780.1 mm (70.1 in) | 1.68 |
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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).