Summer Lake 1 S Weather Records (USC00358173)
Record envelope, standing records and threshold days for Summer Lake 1 S (USC00358173), Oregon, United States, with 70 years of record.
Key Facts for Summer Lake 1 S
- Summer Lake 1 S (USC00358173) is a weather station in Oregon, United States at 42.95 latitude and -120.79 longitude, 1,277 m (4,189 ft) above sea level.
- The station reports from 1957 to 2026, 70 years of record.
- 1,464 records set at Summer Lake 1 S still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Summer Lake 1 S set a daily record high minimum temperature of 17.8 C (64.0 F) on 22 August 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, 42.95 latitude, -120.79 longitude.
- Elevation: 1,277 m (4,189 ft).
- Period of record: 1957 to 2026, 70 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
14 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 22.2 C (72.0 F) | -32.8 C (-27.0 F) | 16.1 C (61.0 F) | -11.7 C (10.9 F) |
| Feb | 21.1 C (70.0 F) | -26.7 C (-16.1 F) | 16.7 C (62.1 F) | -9.4 C (15.1 F) |
| Mar | 27.2 C (81.0 F) | -17.2 C (1.0 F) | 27.2 C (81.0 F) | -5.6 C (21.9 F) |
| Apr | 30.0 C (86.0 F) | -11.1 C (12.0 F) | 27.2 C (81.0 F) | -6.7 C (19.9 F) |
| May | 35.6 C (96.1 F) | -8.9 C (16.0 F) | 31.7 C (89.1 F) | 0.0 C (32.0 F) |
| Jun | 41.7 C (107.1 F) | -2.8 C (27.0 F) | 36.7 C (98.1 F) | 0.6 C (33.1 F) |
| Jul | 42.2 C (108.0 F) | 0.6 C (33.1 F) | 35.6 C (96.1 F) | 3.9 C (39.0 F) |
| Aug | 41.1 C (106.0 F) | -2.8 C (27.0 F) | 38.3 C (100.9 F) | 2.8 C (37.0 F) |
| Sep | 40.0 C (104.0 F) | -6.1 C (21.0 F) | 27.2 C (81.0 F) | 5.6 C (42.1 F) |
| Oct | 35.6 C (96.1 F) | -14.4 C (6.1 F) | n/a | n/a |
| Nov | 25.0 C (77.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
| Dec | 20.6 C (69.1 F) | -28.3 C (-18.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1957 | 9 |
| 1958 | 16 |
| 1959 | 23 |
| 1960 | 27 |
| 1961 | 6 |
| 1962 | 29 |
| 1963 | 25 |
| 1964 | 19 |
| 1965 | 16 |
| 1966 | 22 |
| 1967 | 13 |
| 1968 | 20 |
| 1969 | 14 |
| 1970 | 24 |
| 1971 | 32 |
| 1972 | 26 |
| 1973 | 16 |
| 1974 | 25 |
| 1975 | 24 |
| 1976 | 24 |
| 1977 | 15 |
| 1978 | 17 |
| 1979 | 18 |
| 1980 | 23 |
| 1981 | 14 |
| 1982 | 29 |
| 1983 | 16 |
| 1984 | 22 |
| 1985 | 29 |
| 1986 | 33 |
| 1987 | 27 |
| 1988 | 19 |
| 1989 | 28 |
| 1990 | 32 |
| 1991 | 12 |
| 1992 | 25 |
| 1993 | 21 |
| 1994 | 22 |
| 1995 | 22 |
| 1996 | 29 |
| 1997 | 12 |
| 1998 | 15 |
| 1999 | 20 |
| 2000 | 14 |
| 2001 | 9 |
| 2002 | 21 |
| 2003 | 24 |
| 2004 | 10 |
| 2005 | 15 |
| 2006 | 14 |
| 2007 | 13 |
| 2008 | 22 |
| 2009 | 17 |
| 2010 | 20 |
| 2011 | 11 |
| 2012 | 20 |
| 2013 | 21 |
| 2014 | 10 |
| 2015 | 28 |
| 2016 | 26 |
| 2017 | 24 |
| 2018 | 26 |
| 2019 | 11 |
| 2020 | 31 |
| 2021 | 27 |
| 2022 | 52 |
| 2023 | 15 |
| 2024 | 26 |
| 2025 | 33 |
| 2026 | 14 |
All-Time Record Progression
3 new records| Date | Kind | Detail |
|---|---|---|
| 2002-07-10 | Record high maximum temperature | Record high maximum temperature 41.7 C (107.1 F) |
| 2002-07-13 | Record high minimum temperature | Record high minimum temperature 23.9 C (75.0 F) |
| 2022-07-30 | Record high maximum temperature | Record high maximum temperature 42.2 C (108.0 F) |
Wettest Day of Each Month
Dec: 84.8 mm (3.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 55.4 mm (2.2 in) | 22 January 1972 |
| Feb | 69.6 mm (2.7 in) | 21 February 1982 |
| Mar | 36.8 mm (1.4 in) | 30 March 1983 |
| Apr | 27.7 mm (1.1 in) | 24 April 1996 |
| May | 41.1 mm (1.6 in) | 10 May 1977 |
| Jun | 31.0 mm (1.2 in) | 17 June 1965 |
| Jul | 41.1 mm (1.6 in) | 17 July 1987 |
| Aug | 27.2 mm (1.1 in) | 7 August 2009 |
| Sep | 31.2 mm (1.2 in) | 29 September 2013 |
| Oct | 52.8 mm (2.1 in) | 9 October 1962 |
| Nov | 47.8 mm (1.9 in) | 18 November 1996 |
| Dec | 84.8 mm (3.3 in) | 22 December 1964 |
Period of Record Coverage
1957 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1957 | 296 | 81% | No |
| 1958 | 363 | 99% | Yes |
| 1959 | 364 | 100% | Yes |
| 1960 | 365 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 364 | 100% | Yes |
| 1963 | 363 | 99% | Yes |
| 1964 | 365 | 100% | Yes |
| 1965 | 361 | 99% | Yes |
| 1966 | 363 | 99% | Yes |
| 1967 | 363 | 99% | Yes |
| 1968 | 363 | 99% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 365 | 100% | Yes |
| 1971 | 365 | 100% | Yes |
| 1972 | 364 | 99% | Yes |
| 1973 | 364 | 100% | Yes |
| 1974 | 350 | 96% | Yes |
| 1975 | 362 | 99% | Yes |
| 1976 | 366 | 100% | Yes |
| 1977 | 365 | 100% | Yes |
| 1978 | 363 | 99% | Yes |
| 1979 | 363 | 99% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 363 | 99% | Yes |
| 1982 | 364 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 365 | 100% | Yes |
| 1985 | 324 | 89% | No |
| 1986 | 361 | 99% | Yes |
| 1987 | 358 | 98% | Yes |
| 1988 | 358 | 98% | Yes |
| 1989 | 356 | 98% | Yes |
| 1990 | 359 | 98% | Yes |
| 1991 | 354 | 97% | Yes |
| 1992 | 347 | 95% | Yes |
| 1993 | 362 | 99% | Yes |
| 1994 | 355 | 97% | Yes |
| 1995 | 358 | 98% | Yes |
| 1996 | 360 | 98% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 360 | 99% | Yes |
| 1999 | 362 | 99% | Yes |
| 2000 | 362 | 99% | Yes |
| 2001 | 332 | 91% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 361 | 99% | Yes |
| 2004 | 364 | 99% | Yes |
| 2005 | 356 | 98% | Yes |
| 2006 | 363 | 99% | Yes |
| 2007 | 362 | 99% | Yes |
| 2008 | 365 | 100% | Yes |
| 2009 | 364 | 100% | Yes |
| 2010 | 360 | 99% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 360 | 99% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 329 | 90% | No |
| 2021 | 345 | 95% | Yes |
| 2022 | 352 | 96% | Yes |
| 2023 | 350 | 96% | Yes |
| 2024 | 334 | 91% | Yes |
| 2025 | 327 | 90% | No |
| 2026 | 206 | 56% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 22 August 2026 | Summer Lake 1 S, US | daily high min (Provisional) | 17.8 C (64.0 F) | 1.1 C (2.0 F) | 9 years | 12 of 100 (Routine) |
| 14 August 2026 | Summer Lake 1 S, US | daily rain (Tie) | 5.1 mm (0.20 in) | tie | 49 years | 5 of 100 (Routine) |
| 5 August 2026 | Summer Lake 1 S, US | daily high max (Tie) | 37.8 C (100.0 F) | tie | 36 years | 4 of 100 (Routine) |
| 3 August 2026 | Summer Lake 1 S, US | daily low min (Tie) | 5.0 C (41.0 F) | tie | 9 years | 2 of 100 (Routine) |
| 17 June 2026 | Summer Lake 1 S, US | daily high max | 35.6 C (96.1 F) | 0.6 C (1.1 F) | 64 years | 27 of 100 (Routine) |
| 16 June 2026 | Summer Lake 1 S, US | daily high max | 36.7 C (98.1 F) | 1.1 C (2.0 F) | 64 years | 28 of 100 (Routine) |
| 15 June 2026 | Summer Lake 1 S, US | daily high max | 35.6 C (96.1 F) | 0.6 C (1.1 F) | 64 years | 27 of 100 (Routine) |
| 28 May 2026 | Summer Lake 1 S, US | daily rain | 29.5 mm (1.2 in) | 11.2 mm (0.4 in) | 17 years | 37 of 100 (Notable) |
| 17 May 2026 | Summer Lake 1 S, US | daily snowfall | 0.8 cm (0.3 in) | 0.8 cm (0.3 in) | 68 years | 20 of 100 (Routine) |
| 12 May 2026 | Summer Lake 1 S, US | daily high max | 31.7 C (89.1 F) | 0.6 C (1.1 F) | 28 years | 16 of 100 (Routine) |
| 6 May 2026 | Summer Lake 1 S, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 39 years | 4 of 100 (Routine) |
| 17 April 2026 | Summer Lake 1 S, US | daily low min | -6.7 C (19.9 F) | 0.6 C (1.1 F) | 61 years | 26 of 100 (Routine) |
| 10 April 2026 | Summer Lake 1 S, US | daily high min (Tie) | 8.3 C (46.9 F) | tie | 8 years | 2 of 100 (Routine) |
| 29 March 2026 | Summer Lake 1 S, US | daily high min | 8.9 C (48.0 F) | 3.3 C (5.9 F) | 8 years | 17 of 100 (Routine) |
| 25 March 2026 | Summer Lake 1 S, US | monthly high min | 12.2 C (54.0 F) | 0.5 C (0.9 F) | 9 years | 20 of 100 (Routine) |
| 24 March 2026 | Summer Lake 1 S, US | daily high min | 11.1 C (52.0 F) | 5.5 C (9.9 F) | 20 years | 27 of 100 (Routine) |
| 21 March 2026 | Summer Lake 1 S, US | daily high min | 8.9 C (48.0 F) | 1.1 C (2.0 F) | 36 years | 20 of 100 (Routine) |
| 20 March 2026 | Summer Lake 1 S, US | monthly high max | 27.2 C (81.0 F) | 0.5 C (0.9 F) | 0 years | 18 of 100 (Routine) |
| 19 March 2026 | Summer Lake 1 S, US | monthly high max (Tie) | 26.7 C (80.1 F) | tie | 0 years | 4 of 100 (Routine) |
| 18 March 2026 | Summer Lake 1 S, US | daily high max | 26.1 C (79.0 F) | 4.4 C (7.9 F) | 21 years | 21 of 100 (Routine) |
Climate Trend
64 complete years, 1958 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1958 | 10.1 C | +0.33 C |
| 1959 | 9.1 C | -0.62 C |
| 1960 | 8.8 C | -0.93 C |
| 1961 | 9.3 C | -0.49 C |
| 1962 | 8.8 C | -0.99 C |
| 1963 | 9.1 C | -0.62 C |
| 1964 | 8.4 C | -1.32 C |
| 1965 | 9.1 C | -0.69 C |
| 1966 | 9.6 C | -0.10 C |
| 1967 | 9.6 C | -0.17 C |
| 1968 | 9.5 C | -0.28 C |
| 1969 | 8.8 C | -0.96 C |
| 1970 | 9.0 C | -0.77 C |
| 1971 | 8.3 C | -1.42 C |
| 1972 | 8.9 C | -0.80 C |
| 1973 | 9.4 C | -0.31 C |
| 1975 | 8.4 C | -1.34 C |
| 1976 | 8.8 C | -0.90 C |
| 1977 | 8.9 C | -0.80 C |
| 1978 | 9.0 C | -0.71 C |
| 1979 | 9.3 C | -0.44 C |
| 1980 | 9.5 C | -0.25 C |
| 1981 | 9.8 C | +0.04 C |
| 1982 | 8.5 C | -1.27 C |
| 1983 | 9.5 C | -0.28 C |
| 1984 | 9.1 C | -0.67 C |
| 1986 | 10.5 C | +0.78 C |
| 1987 | 10.3 C | +0.56 C |
| 1988 | 10.3 C | +0.55 C |
| 1989 | 9.4 C | -0.32 C |
| 1990 | 10.4 C | +0.68 C |
| 1991 | 10.1 C | +0.34 C |
| 1992 | 11.0 C | +1.27 C |
| 1993 | 8.6 C | -1.14 C |
| 1994 | 10.3 C | +0.59 C |
| 1995 | 10.4 C | +0.65 C |
| 1996 | 10.4 C | +0.69 C |
| 1997 | 10.2 C | +0.44 C |
| 1998 | 10.0 C | +0.28 C |
| 1999 | 9.9 C | +0.11 C |
| 2000 | 9.9 C | +0.15 C |
| 2002 | 10.4 C | +0.63 C |
| 2003 | 11.0 C | +1.25 C |
| 2004 | 10.7 C | +0.93 C |
| 2005 | 9.8 C | +0.07 C |
| 2006 | 10.3 C | +0.57 C |
| 2007 | 10.3 C | +0.52 C |
| 2008 | 9.8 C | +0.05 C |
| 2009 | 9.9 C | +0.13 C |
| 2010 | 9.9 C | +0.13 C |
| 2011 | 9.1 C | -0.68 C |
| 2012 | 10.1 C | +0.36 C |
| 2013 | 9.1 C | -0.67 C |
| 2014 | 10.3 C | +0.58 C |
| 2015 | 10.4 C | +0.66 C |
| 2016 | 10.2 C | +0.49 C |
| 2017 | 10.0 C | +0.21 C |
| 2018 | 10.4 C | +0.69 C |
| 2019 | 9.9 C | +0.13 C |
| 2020 | 11.0 C | +1.21 C |
| 2022 | 10.1 C | +0.40 C |
| 2023 | 10.1 C | +0.37 C |
| 2024 | 11.1 C | +1.39 C |
| 2025 | 11.5 C | +1.78 C |
The annual mean temperature here has risen by 0.2 C (0.2 to 0.3) per decade over 1958 to 2025. In Fahrenheit: 0.4 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 64 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.2 C (0.2 to 0.3) per decade | 0.4 F (0.3 to 0.6) per decade | 1958 to 2025 | 64 | Rise |
| Mean daily maximum | 0.4 C (0.4 to 0.5) per decade | 0.8 F (0.6 to 1.0) per decade | 1958 to 2025 | 64 | Rise |
| Mean daily minimum | 0.04 C (-0.05 to 0.13) per decade | 0.1 F (-0.1 to 0.2) per decade | 1958 to 2025 | 64 | 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
1957 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 42.2 C (108.0 F) | 2022 | 37.8 C (100.0 F) | 70 |
| Coldest night (TNn) | -32.8 C (-27.0 F) | 1962 | -17.5 C (0.5 F) | 70 |
| Wettest day (Rx1day) | 84.8 mm (3.3 in) | 1964 | 27.9 mm (1.1 in) | 70 |
| Wettest five days (Rx5day) | 220.1 mm (8.7 in) | 1964 | 49.4 mm (1.9 in) | 70 |
| Longest dry spell (CDD) | 83 days | 1974 | 43 days | 70 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1957 | 33.9 C (93.0 F) |
| 1958 | 35.0 C (95.0 F) |
| 1959 | 36.7 C (98.1 F) |
| 1960 | 38.9 C (102.0 F) |
| 1961 | 38.9 C (102.0 F) |
| 1962 | 35.0 C (95.0 F) |
| 1963 | 34.4 C (93.9 F) |
| 1964 | 36.1 C (97.0 F) |
| 1965 | 34.4 C (93.9 F) |
| 1966 | 35.0 C (95.0 F) |
| 1967 | 36.7 C (98.1 F) |
| 1968 | 36.7 C (98.1 F) |
| 1969 | 35.6 C (96.1 F) |
| 1970 | 35.6 C (96.1 F) |
| 1971 | 37.2 C (99.0 F) |
| 1972 | 39.4 C (102.9 F) |
| 1973 | 36.1 C (97.0 F) |
| 1974 | 35.0 C (95.0 F) |
| 1975 | 36.7 C (98.1 F) |
| 1976 | 35.0 C (95.0 F) |
| 1977 | 36.7 C (98.1 F) |
| 1978 | 37.2 C (99.0 F) |
| 1979 | 37.8 C (100.0 F) |
| 1980 | 37.8 C (100.0 F) |
| 1981 | 38.3 C (100.9 F) |
| 1982 | 34.4 C (93.9 F) |
| 1983 | 36.7 C (98.1 F) |
| 1984 | 37.2 C (99.0 F) |
| 1985 | 36.7 C (98.1 F) |
| 1986 | 36.1 C (97.0 F) |
| 1987 | 35.6 C (96.1 F) |
| 1988 | 38.9 C (102.0 F) |
| 1989 | 36.1 C (97.0 F) |
| 1990 | 38.9 C (102.0 F) |
| 1991 | 35.6 C (96.1 F) |
| 1992 | 38.9 C (102.0 F) |
| 1993 | 35.0 C (95.0 F) |
| 1994 | 39.4 C (102.9 F) |
| 1995 | 35.6 C (96.1 F) |
| 1996 | 37.8 C (100.0 F) |
| 1997 | 37.8 C (100.0 F) |
| 1998 | 38.3 C (100.9 F) |
| 1999 | 37.8 C (100.0 F) |
| 2000 | 36.1 C (97.0 F) |
| 2001 | 37.2 C (99.0 F) |
| 2002 | 41.7 C (107.1 F) |
| 2003 | 40.6 C (105.1 F) |
| 2004 | 37.8 C (100.0 F) |
| 2005 | 37.8 C (100.0 F) |
| 2006 | 38.9 C (102.0 F) |
| 2007 | 40.6 C (105.1 F) |
| 2008 | 39.4 C (102.9 F) |
| 2009 | 37.8 C (100.0 F) |
| 2010 | 37.2 C (99.0 F) |
| 2011 | 36.1 C (97.0 F) |
| 2012 | 37.8 C (100.0 F) |
| 2013 | 38.9 C (102.0 F) |
| 2014 | 37.8 C (100.0 F) |
| 2015 | 38.9 C (102.0 F) |
| 2016 | 38.3 C (100.9 F) |
| 2017 | 38.9 C (102.0 F) |
| 2018 | 40.0 C (104.0 F) |
| 2019 | 37.2 C (99.0 F) |
| 2020 | 40.0 C (104.0 F) |
| 2021 | 41.7 C (107.1 F) |
| 2022 | 42.2 C (108.0 F) |
| 2023 | 38.9 C (102.0 F) |
| 2024 | 41.1 C (106.0 F) |
| 2025 | 39.4 C (102.9 F) |
| 2026 | 38.3 C (100.9 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1957 | -10.6 C (12.9 F) |
| 1958 | -12.8 C (9.0 F) |
| 1959 | -15.0 C (5.0 F) |
| 1960 | -18.3 C (-0.9 F) |
| 1961 | -20.0 C (-4.0 F) |
| 1962 | -32.8 C (-27.0 F) |
| 1963 | -20.6 C (-5.1 F) |
| 1964 | -17.8 C (0.0 F) |
| 1965 | -20.0 C (-4.0 F) |
| 1966 | -11.7 C (10.9 F) |
| 1967 | -16.7 C (1.9 F) |
| 1968 | -14.4 C (6.1 F) |
| 1969 | -15.6 C (3.9 F) |
| 1970 | -15.6 C (3.9 F) |
| 1971 | -17.2 C (1.0 F) |
| 1972 | -26.7 C (-16.1 F) |
| 1973 | -11.7 C (10.9 F) |
| 1974 | -23.3 C (-9.9 F) |
| 1975 | -13.3 C (8.1 F) |
| 1976 | -14.4 C (6.1 F) |
| 1977 | -18.3 C (-0.9 F) |
| 1978 | -19.4 C (-2.9 F) |
| 1979 | -18.9 C (-2.0 F) |
| 1980 | -18.9 C (-2.0 F) |
| 1981 | -11.7 C (10.9 F) |
| 1982 | -18.9 C (-2.0 F) |
| 1983 | -20.0 C (-4.0 F) |
| 1984 | -17.8 C (0.0 F) |
| 1985 | -24.4 C (-11.9 F) |
| 1986 | -10.6 C (12.9 F) |
| 1987 | -16.1 C (3.0 F) |
| 1988 | -21.7 C (-7.1 F) |
| 1989 | -26.7 C (-16.1 F) |
| 1990 | -26.1 C (-15.0 F) |
| 1991 | -13.3 C (8.1 F) |
| 1992 | -15.0 C (5.0 F) |
| 1993 | -19.4 C (-2.9 F) |
| 1994 | -14.4 C (6.1 F) |
| 1995 | -12.8 C (9.0 F) |
| 1996 | -11.1 C (12.0 F) |
| 1997 | -15.0 C (5.0 F) |
| 1998 | -21.1 C (-6.0 F) |
| 1999 | -13.3 C (8.1 F) |
| 2000 | -11.1 C (12.0 F) |
| 2001 | -12.8 C (9.0 F) |
| 2002 | -14.4 C (6.1 F) |
| 2003 | -12.2 C (10.0 F) |
| 2004 | -11.7 C (10.9 F) |
| 2005 | -20.6 C (-5.1 F) |
| 2006 | -15.0 C (5.0 F) |
| 2007 | -15.0 C (5.0 F) |
| 2008 | -23.9 C (-11.0 F) |
| 2009 | -21.7 C (-7.1 F) |
| 2010 | -17.8 C (0.0 F) |
| 2011 | -21.1 C (-6.0 F) |
| 2012 | -13.3 C (8.1 F) |
| 2013 | -28.3 C (-18.9 F) |
| 2014 | -17.8 C (0.0 F) |
| 2015 | -25.6 C (-14.1 F) |
| 2016 | -21.7 C (-7.1 F) |
| 2017 | -24.4 C (-11.9 F) |
| 2018 | -18.3 C (-0.9 F) |
| 2019 | -15.6 C (3.9 F) |
| 2020 | -12.2 C (10.0 F) |
| 2021 | -13.3 C (8.1 F) |
| 2022 | -19.4 C (-2.9 F) |
| 2023 | -17.8 C (0.0 F) |
| 2024 | -11.1 C (12.0 F) |
| 2025 | -21.1 C (-6.0 F) |
| 2026 | -11.7 C (10.9 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1957 | 27.9 mm (1.1 in) |
| 1958 | 24.9 mm (1.0 in) |
| 1959 | 24.1 mm (0.9 in) |
| 1960 | 33.5 mm (1.3 in) |
| 1961 | 28.7 mm (1.1 in) |
| 1962 | 52.8 mm (2.1 in) |
| 1963 | 22.1 mm (0.9 in) |
| 1964 | 84.8 mm (3.3 in) |
| 1965 | 31.0 mm (1.2 in) |
| 1966 | 14.0 mm (0.6 in) |
| 1967 | 33.3 mm (1.3 in) |
| 1968 | 19.8 mm (0.8 in) |
| 1969 | 34.3 mm (1.4 in) |
| 1970 | 31.2 mm (1.2 in) |
| 1971 | 15.0 mm (0.6 in) |
| 1972 | 55.4 mm (2.2 in) |
| 1973 | 20.3 mm (0.8 in) |
| 1974 | 23.9 mm (0.9 in) |
| 1975 | 24.1 mm (0.9 in) |
| 1976 | 9.7 mm (0.38 in) |
| 1977 | 41.1 mm (1.6 in) |
| 1978 | 18.8 mm (0.7 in) |
| 1979 | 32.5 mm (1.3 in) |
| 1980 | 51.8 mm (2.0 in) |
| 1981 | 29.2 mm (1.1 in) |
| 1982 | 69.6 mm (2.7 in) |
| 1983 | 36.8 mm (1.4 in) |
| 1984 | 25.4 mm (1.0 in) |
| 1985 | 18.3 mm (0.7 in) |
| 1986 | 42.9 mm (1.7 in) |
| 1987 | 41.1 mm (1.6 in) |
| 1988 | 26.7 mm (1.1 in) |
| 1989 | 16.0 mm (0.6 in) |
| 1990 | 30.2 mm (1.2 in) |
| 1991 | 14.0 mm (0.6 in) |
| 1992 | 22.9 mm (0.9 in) |
| 1993 | 24.9 mm (1.0 in) |
| 1994 | 17.5 mm (0.7 in) |
| 1995 | 29.2 mm (1.1 in) |
| 1996 | 47.8 mm (1.9 in) |
| 1997 | 54.9 mm (2.2 in) |
| 1998 | 47.2 mm (1.9 in) |
| 1999 | 27.9 mm (1.1 in) |
| 2000 | 28.7 mm (1.1 in) |
| 2001 | 31.5 mm (1.2 in) |
| 2002 | 16.5 mm (0.6 in) |
| 2003 | 16.3 mm (0.6 in) |
| 2004 | 45.0 mm (1.8 in) |
| 2005 | 38.9 mm (1.5 in) |
| 2006 | 22.9 mm (0.9 in) |
| 2007 | 49.3 mm (1.9 in) |
| 2008 | 18.3 mm (0.7 in) |
| 2009 | 27.2 mm (1.1 in) |
| 2010 | 39.9 mm (1.6 in) |
| 2011 | 16.5 mm (0.6 in) |
| 2012 | 29.0 mm (1.1 in) |
| 2013 | 31.2 mm (1.2 in) |
| 2014 | 25.9 mm (1.0 in) |
| 2015 | 18.8 mm (0.7 in) |
| 2016 | 31.8 mm (1.3 in) |
| 2017 | 27.9 mm (1.1 in) |
| 2018 | 15.0 mm (0.6 in) |
| 2019 | 17.3 mm (0.7 in) |
| 2020 | 25.7 mm (1.0 in) |
| 2021 | 17.0 mm (0.7 in) |
| 2022 | 25.4 mm (1.0 in) |
| 2023 | 25.4 mm (1.0 in) |
| 2024 | 33.8 mm (1.3 in) |
| 2025 | 38.9 mm (1.5 in) |
| 2026 | 29.5 mm (1.2 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1957 | 53.2 mm (2.1 in) |
| 1958 | 38.1 mm (1.5 in) |
| 1959 | 26.7 mm (1.1 in) |
| 1960 | 51.5 mm (2.0 in) |
| 1961 | 34.0 mm (1.3 in) |
| 1962 | 174.7 mm (6.9 in) |
| 1963 | 60.7 mm (2.4 in) |
| 1964 | 220.1 mm (8.7 in) |
| 1965 | 54.6 mm (2.1 in) |
| 1966 | 33.8 mm (1.3 in) |
| 1967 | 38.4 mm (1.5 in) |
| 1968 | 47.0 mm (1.9 in) |
| 1969 | 53.4 mm (2.1 in) |
| 1970 | 60.2 mm (2.4 in) |
| 1971 | 29.1 mm (1.1 in) |
| 1972 | 67.6 mm (2.7 in) |
| 1973 | 55.3 mm (2.2 in) |
| 1974 | 40.4 mm (1.6 in) |
| 1975 | 30.2 mm (1.2 in) |
| 1976 | 25.9 mm (1.0 in) |
| 1977 | 55.8 mm (2.2 in) |
| 1978 | 23.6 mm (0.9 in) |
| 1979 | 65.5 mm (2.6 in) |
| 1980 | 82.9 mm (3.3 in) |
| 1981 | 63.2 mm (2.5 in) |
| 1982 | 72.7 mm (2.9 in) |
| 1983 | 50.6 mm (2.0 in) |
| 1984 | 38.9 mm (1.5 in) |
| 1985 | 33.3 mm (1.3 in) |
| 1986 | 85.1 mm (3.4 in) |
| 1987 | 80.2 mm (3.2 in) |
| 1988 | 49.5 mm (1.9 in) |
| 1989 | 26.5 mm (1.0 in) |
| 1990 | 38.3 mm (1.5 in) |
| 1991 | 34.3 mm (1.4 in) |
| 1992 | 41.2 mm (1.6 in) |
| 1993 | 38.2 mm (1.5 in) |
| 1994 | 32.2 mm (1.3 in) |
| 1995 | 57.0 mm (2.2 in) |
| 1996 | 80.5 mm (3.2 in) |
| 1997 | 106.7 mm (4.2 in) |
| 1998 | 82.0 mm (3.2 in) |
| 1999 | 53.8 mm (2.1 in) |
| 2000 | 47.3 mm (1.9 in) |
| 2001 | 58.5 mm (2.3 in) |
| 2002 | 33.3 mm (1.3 in) |
| 2003 | 25.4 mm (1.0 in) |
| 2004 | 69.7 mm (2.7 in) |
| 2005 | 66.3 mm (2.6 in) |
| 2006 | 49.3 mm (1.9 in) |
| 2007 | 58.9 mm (2.3 in) |
| 2008 | 38.0 mm (1.5 in) |
| 2009 | 33.9 mm (1.3 in) |
| 2010 | 44.7 mm (1.8 in) |
| 2011 | 36.1 mm (1.4 in) |
| 2012 | 62.5 mm (2.5 in) |
| 2013 | 48.2 mm (1.9 in) |
| 2014 | 38.9 mm (1.5 in) |
| 2015 | 50.1 mm (2.0 in) |
| 2016 | 56.7 mm (2.2 in) |
| 2017 | 52.5 mm (2.1 in) |
| 2018 | 25.9 mm (1.0 in) |
| 2019 | 44.4 mm (1.7 in) |
| 2020 | 46.8 mm (1.8 in) |
| 2021 | 31.3 mm (1.2 in) |
| 2022 | 55.6 mm (2.2 in) |
| 2023 | 40.7 mm (1.6 in) |
| 2024 | 71.2 mm (2.8 in) |
| 2025 | 92.9 mm (3.7 in) |
| 2026 | 47.5 mm (1.9 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1957 | 36 days |
| 1958 | 28 days |
| 1959 | 38 days |
| 1960 | 68 days |
| 1961 | 31 days |
| 1962 | 47 days |
| 1963 | 40 days |
| 1964 | 29 days |
| 1965 | 65 days |
| 1966 | 47 days |
| 1967 | 37 days |
| 1968 | 54 days |
| 1969 | 82 days |
| 1970 | 69 days |
| 1971 | 28 days |
| 1972 | 66 days |
| 1973 | 49 days |
| 1974 | 83 days |
| 1975 | 48 days |
| 1976 | 35 days |
| 1977 | 61 days |
| 1978 | 66 days |
| 1979 | 56 days |
| 1980 | 44 days |
| 1981 | 82 days |
| 1982 | 30 days |
| 1983 | 27 days |
| 1984 | 35 days |
| 1985 | 54 days |
| 1986 | 82 days |
| 1987 | 62 days |
| 1988 | 56 days |
| 1989 | 38 days |
| 1990 | 35 days |
| 1991 | 45 days |
| 1992 | 42 days |
| 1993 | 36 days |
| 1994 | 53 days |
| 1995 | 51 days |
| 1996 | 24 days |
| 1997 | 34 days |
| 1998 | 26 days |
| 1999 | 80 days |
| 2000 | 45 days |
| 2001 | 34 days |
| 2002 | 35 days |
| 2003 | 38 days |
| 2004 | 25 days |
| 2005 | 42 days |
| 2006 | 30 days |
| 2007 | 34 days |
| 2008 | 74 days |
| 2009 | 57 days |
| 2010 | 23 days |
| 2011 | 64 days |
| 2012 | 47 days |
| 2013 | 24 days |
| 2014 | 50 days |
| 2015 | 48 days |
| 2016 | 71 days |
| 2017 | 43 days |
| 2018 | 46 days |
| 2019 | 54 days |
| 2020 | 22 days |
| 2021 | 26 days |
| 2022 | 29 days |
| 2023 | 26 days |
| 2024 | 17 days |
| 2025 | 24 days |
| 2026 | 21 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
64 years with a frostAcross 64 years with a frost, the median last spring frost at Summer Lake 1 S falls on 26 May and the median first autumn frost on 22 September, which leaves a median of 123 days between them.
In 1994 to 2025 the median growing season was 129 days. That is 7 days more than in 1958 to 1989.
Fitted over all years, the growing season changes by +1.4 days per decade at this station.
| Measure | Median, all years | Earliest period (1958 to 1989) | Recent period (1994 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 May | 27 May | 23 May | 4 days earlier | -0.7 days per decade |
| First autumn frost | 22 September | 21 September | 24 September | 3 days later | +0.7 days per decade |
| Growing days | 123 days | 122 days | 129 days | 7 days more | +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
65 years, 1958 to 2023A day with at least 27.1 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 81.1 mm (3.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 27.1 mm (1.1 in) | |
| 5 years | 39.0 mm (1.5 in) | |
| 10 years | 47.9 mm (1.9 in) | |
| 25 years | 60.2 mm (2.4 in) | |
| 50 years | 70.3 mm (2.8 in) | |
| 100 years | 81.1 mm (3.2 in) | Longer than the 65 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, 65 years of values from 1958 to 2023.
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: 84.8 mm (3.3 in) in 1964; 69.6 mm (2.7 in) in 1982; 55.4 mm (2.2 in) in 1972.
Station Changes
1 suspectedOne change was suspected in the annual mean temperature of Summer Lake 1 S, at 1983. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1983 ran 0.3 C (0.5 F) higher than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1983 | +0.3 | +0.5 | likely | 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.
Climate Twins
2010 to 2025 against 1961 to 1990Over 2010 to 2025, Summer Lake 1 S had a mean temperature of 10.2 C (50.4 F) and 328.6 mm (12.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Adel (United States, 113 km away), Reserve Rs (United States, 1,464 km away) and Carson City (United States, 434 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Adel | United States | 113 km (70 mi) | 9.7 C (49.4 F) | 249.5 mm (9.8 in) | 0.75 |
| Reserve Rs | United States | 1,464 km (910 mi) | 10.4 C (50.8 F) | 414.7 mm (16.3 in) | 0.80 |
| Carson City | United States | 434 km (270 mi) | 10.1 C (50.2 F) | 246.8 mm (9.7 in) | 0.81 |
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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-13).