Big Bear Lake Weather Records (USC00040741)
Record envelope, standing records and threshold days for Big Bear Lake (USC00040741), California, United States, with 67 years of record.
Key Facts for Big Bear Lake
- Big Bear Lake (USC00040741) is a weather station in California, United States at 34.24 latitude and -116.92 longitude, 2,058 m (6,753 ft) above sea level.
- The station reports from 1960 to 2026, 67 years of record.
- 1,464 records set at Big Bear Lake still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Big Bear Lake set a daily record precipitation of 5.3 mm (0.21 in) on 24 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: California, United States, 34.24 latitude, -116.92 longitude.
- Elevation: 2,058 m (6,753 ft).
- Period of record: 1960 to 2026, 67 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
20 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 21.7 C (71.1 F) | -22.8 C (-9.0 F) | 18.3 C (64.9 F) | -7.8 C (18.0 F) |
| Feb | 22.2 C (72.0 F) | -23.3 C (-9.9 F) | 21.1 C (70.0 F) | -11.1 C (12.0 F) |
| Mar | 26.7 C (80.1 F) | -22.2 C (-8.0 F) | 26.1 C (79.0 F) | -3.3 C (26.1 F) |
| Apr | 27.8 C (82.0 F) | -16.1 C (3.0 F) | 20.6 C (69.1 F) | -3.9 C (25.0 F) |
| May | 30.6 C (87.1 F) | -7.8 C (18.0 F) | 25.6 C (78.1 F) | -1.1 C (30.0 F) |
| Jun | 36.7 C (98.1 F) | -5.6 C (21.9 F) | 28.9 C (84.0 F) | 3.9 C (39.0 F) |
| Jul | 34.4 C (93.9 F) | -2.2 C (28.0 F) | 31.1 C (88.0 F) | 5.6 C (42.1 F) |
| Aug | 33.3 C (91.9 F) | -1.7 C (28.9 F) | 31.7 C (89.1 F) | 9.4 C (48.9 F) |
| Sep | 30.6 C (87.1 F) | -7.2 C (19.0 F) | 23.9 C (75.0 F) | 6.1 C (43.0 F) |
| Oct | 29.4 C (84.9 F) | -12.2 C (10.0 F) | n/a | n/a |
| Nov | 23.3 C (73.9 F) | -26.1 C (-15.0 F) | n/a | n/a |
| Dec | 22.2 C (72.0 F) | -25.6 C (-14.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1960 | 9 |
| 1961 | 51 |
| 1962 | 42 |
| 1963 | 49 |
| 1964 | 57 |
| 1965 | 47 |
| 1966 | 21 |
| 1967 | 20 |
| 1968 | 20 |
| 1969 | 19 |
| 1970 | 15 |
| 1971 | 36 |
| 1972 | 28 |
| 1973 | 15 |
| 1974 | 16 |
| 1975 | 16 |
| 1976 | 17 |
| 1977 | 20 |
| 1978 | 19 |
| 1979 | 23 |
| 1980 | 23 |
| 1981 | 16 |
| 1982 | 22 |
| 1983 | 24 |
| 1984 | 17 |
| 1985 | 29 |
| 1986 | 25 |
| 1987 | 23 |
| 1988 | 18 |
| 1989 | 28 |
| 1990 | 21 |
| 1991 | 13 |
| 1992 | 10 |
| 1993 | 15 |
| 1994 | 16 |
| 1995 | 17 |
| 1996 | 25 |
| 1997 | 6 |
| 1998 | 13 |
| 1999 | 11 |
| 2000 | 21 |
| 2001 | 13 |
| 2002 | 26 |
| 2003 | 23 |
| 2004 | 20 |
| 2005 | 12 |
| 2006 | 10 |
| 2007 | 13 |
| 2008 | 16 |
| 2009 | 19 |
| 2010 | 24 |
| 2011 | 29 |
| 2012 | 19 |
| 2013 | 22 |
| 2014 | 21 |
| 2015 | 28 |
| 2016 | 20 |
| 2017 | 28 |
| 2018 | 15 |
| 2019 | 21 |
| 2020 | 18 |
| 2021 | 27 |
| 2022 | 18 |
| 2023 | 18 |
| 2024 | 25 |
| 2025 | 22 |
| 2026 | 24 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 1991-03-27 | Record daily snowfall | Record daily snowfall 68.6 cm (27.0 in) |
| 1994-06-30 | Record high maximum temperature | Record high maximum temperature 36.7 C (98.1 F) |
| 2002-07-02 | Record high minimum temperature | Record high minimum temperature 17.2 C (63.0 F) |
| 2002-07-10 | Record high minimum temperature | Record high minimum temperature 19.4 C (66.9 F) |
| 2008-12-15 | Record daily snowfall | Record daily snowfall 77.5 cm (30.5 in) |
Wettest Day of Each Month
Dec: 239.5 mm (9.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 238.8 mm (9.4 in) | 25 January 1969 |
| Feb | 209.6 mm (8.3 in) | 14 February 2019 |
| Mar | 85.1 mm (3.4 in) | 22 March 2023 |
| Apr | 55.4 mm (2.2 in) | 11 April 1967 |
| May | 50.5 mm (2.0 in) | 9 May 1977 |
| Jun | 21.6 mm (0.9 in) | 5 June 1993 |
| Jul | 45.7 mm (1.8 in) | 18 July 1984 |
| Aug | 66.5 mm (2.6 in) | 20 August 2023 |
| Sep | 59.4 mm (2.3 in) | 10 September 1976 |
| Oct | 82.6 mm (3.3 in) | 20 October 2004 |
| Nov | 166.1 mm (6.5 in) | 23 November 1965 |
| Dec | 239.5 mm (9.4 in) | 6 December 1966 |
Period of Record Coverage
1960 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1960 | 182 | 50% | No |
| 1961 | 364 | 100% | Yes |
| 1962 | 358 | 98% | Yes |
| 1963 | 358 | 98% | Yes |
| 1964 | 359 | 98% | Yes |
| 1965 | 362 | 99% | Yes |
| 1966 | 362 | 99% | Yes |
| 1967 | 355 | 97% | Yes |
| 1968 | 365 | 100% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 349 | 96% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 362 | 99% | Yes |
| 1973 | 361 | 99% | Yes |
| 1974 | 338 | 93% | Yes |
| 1975 | 341 | 93% | Yes |
| 1976 | 349 | 95% | Yes |
| 1977 | 291 | 80% | No |
| 1978 | 348 | 95% | Yes |
| 1979 | 356 | 98% | Yes |
| 1980 | 292 | 80% | No |
| 1981 | 362 | 99% | Yes |
| 1982 | 356 | 98% | Yes |
| 1983 | 364 | 100% | Yes |
| 1984 | 363 | 99% | Yes |
| 1985 | 324 | 89% | No |
| 1986 | 317 | 87% | No |
| 1987 | 312 | 85% | No |
| 1988 | 323 | 88% | No |
| 1989 | 329 | 90% | Yes |
| 1990 | 333 | 91% | Yes |
| 1991 | 364 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 363 | 99% | Yes |
| 1994 | 360 | 99% | Yes |
| 1995 | 363 | 99% | Yes |
| 1996 | 361 | 99% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 331 | 91% | Yes |
| 1999 | 359 | 98% | Yes |
| 2000 | 363 | 99% | Yes |
| 2001 | 351 | 96% | Yes |
| 2002 | 350 | 96% | Yes |
| 2003 | 352 | 96% | Yes |
| 2004 | 303 | 83% | No |
| 2005 | 326 | 89% | No |
| 2006 | 306 | 84% | No |
| 2007 | 322 | 88% | No |
| 2008 | 278 | 76% | No |
| 2009 | 340 | 93% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 362 | 99% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 365 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 364 | 100% | Yes |
| 2019 | 354 | 97% | Yes |
| 2020 | 357 | 98% | Yes |
| 2021 | 363 | 99% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 366 | 100% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 246 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 24 September 2026 | Big Bear Lake, US | daily rain (Provisional) | 5.3 mm (0.21 in) | 0.2 mm (0.01 in) | 49 years | 20 of 100 (Routine) |
| 29 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 14.4 C (57.9 F) | 0.5 C (0.9 F) | 28 years | 15 of 100 (Routine) |
| 28 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 0 years | 13 of 100 (Routine) |
| 27 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 16.1 C (61.0 F) | 3.3 C (5.9 F) | 15 years | 20 of 100 (Routine) |
| 24 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 15.0 C (59.0 F) | 0.6 C (1.1 F) | 37 years | 18 of 100 (Routine) |
| 21 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 15.6 C (60.1 F) | 2.3 C (4.1 F) | 1 year | 13 of 100 (Routine) |
| 20 August 2026 | Big Bear Lake, US | daily high min (Provisional) | 13.9 C (57.0 F) | 0.6 C (1.1 F) | 8 years | 9 of 100 (Routine) |
| 19 August 2026 | Big Bear Lake, US | daily high min (Tie, Provisional) | 14.4 C (57.9 F) | tie | 24 years | 3 of 100 (Routine) |
| 6 August 2026 | Big Bear Lake, US | daily high min (Tie) | 15.6 C (60.1 F) | tie | 1 year | 1 of 100 (Routine) |
| 5 August 2026 | Big Bear Lake, US | daily high max (Tie) | 31.7 C (89.1 F) | tie | 28 years | 3 of 100 (Routine) |
| 5 August 2026 | Big Bear Lake, US | daily high min (Tie) | 14.4 C (57.9 F) | tie | 4 years | 1 of 100 (Routine) |
| 3 August 2026 | Big Bear Lake, US | daily high max (Tie) | 30.6 C (87.1 F) | tie | 4 years | 1 of 100 (Routine) |
| 26 July 2026 | Big Bear Lake, US | daily high min | 15.6 C (60.1 F) | 0.6 C (1.1 F) | 1 year | 7 of 100 (Routine) |
| 24 July 2026 | Big Bear Lake, US | daily high min (Tie) | 15.0 C (59.0 F) | tie | 20 years | 3 of 100 (Routine) |
| 20 July 2026 | Big Bear Lake, US | daily high min (Tie) | 16.1 C (61.0 F) | tie | 33 years | 4 of 100 (Routine) |
| 13 July 2026 | Big Bear Lake, US | daily low max (Tie) | 21.1 C (70.0 F) | tie | 33 years | 4 of 100 (Routine) |
| 12 May 2026 | Big Bear Lake, US | daily high min (Tie) | 7.2 C (45.0 F) | tie | 49 years | 5 of 100 (Routine) |
| 13 April 2026 | Big Bear Lake, US | daily low max (Tie) | 3.3 C (37.9 F) | tie | 49 years | 5 of 100 (Routine) |
| 30 March 2026 | Big Bear Lake, US | daily high min | 8.9 C (48.0 F) | 5.0 C (9.0 F) | 27 years | 27 of 100 (Routine) |
| 29 March 2026 | Big Bear Lake, US | daily high min | 8.9 C (48.0 F) | 6.7 C (12.1 F) | 21 years | 29 of 100 (Routine) |
Climate Trend
57 complete years, 1961 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1961 | 7.2 C | -1.45 C |
| 1962 | 7.1 C | -1.59 C |
| 1963 | 7.2 C | -1.53 C |
| 1964 | 6.4 C | -2.29 C |
| 1965 | 6.8 C | -1.85 C |
| 1966 | 8.2 C | -0.52 C |
| 1967 | 7.9 C | -0.83 C |
| 1968 | 8.1 C | -0.57 C |
| 1969 | 8.0 C | -0.67 C |
| 1971 | 7.8 C | -0.92 C |
| 1972 | 8.2 C | -0.46 C |
| 1973 | 7.9 C | -0.75 C |
| 1974 | 8.5 C | -0.18 C |
| 1975 | 7.5 C | -1.21 C |
| 1976 | 8.2 C | -0.49 C |
| 1978 | 8.3 C | -0.38 C |
| 1979 | 8.3 C | -0.35 C |
| 1981 | 9.2 C | +0.50 C |
| 1982 | 7.6 C | -1.13 C |
| 1983 | 8.2 C | -0.46 C |
| 1984 | 8.5 C | -0.16 C |
| 1987 | 7.9 C | -0.74 C |
| 1988 | 8.7 C | -0.02 C |
| 1989 | 8.8 C | +0.11 C |
| 1990 | 8.2 C | -0.44 C |
| 1991 | 8.0 C | -0.69 C |
| 1992 | 8.3 C | -0.36 C |
| 1993 | 8.2 C | -0.46 C |
| 1994 | 8.7 C | -0.01 C |
| 1995 | 9.0 C | +0.34 C |
| 1996 | 9.7 C | +1.04 C |
| 1997 | 9.0 C | +0.32 C |
| 1999 | 9.0 C | +0.30 C |
| 2000 | 9.2 C | +0.54 C |
| 2001 | 9.1 C | +0.42 C |
| 2002 | 9.4 C | +0.67 C |
| 2003 | 9.7 C | +0.99 C |
| 2004 | 8.8 C | +0.09 C |
| 2005 | 9.0 C | +0.35 C |
| 2007 | 9.5 C | +0.83 C |
| 2009 | 9.0 C | +0.28 C |
| 2010 | 8.5 C | -0.22 C |
| 2011 | 8.8 C | +0.09 C |
| 2012 | 9.7 C | +0.98 C |
| 2013 | 9.2 C | +0.55 C |
| 2014 | 10.2 C | +1.48 C |
| 2015 | 9.5 C | +0.81 C |
| 2016 | 9.7 C | +1.02 C |
| 2017 | 10.2 C | +1.50 C |
| 2018 | 9.9 C | +1.25 C |
| 2019 | 8.4 C | -0.24 C |
| 2020 | 9.8 C | +1.16 C |
| 2021 | 10.0 C | +1.30 C |
| 2022 | 9.8 C | +1.15 C |
| 2023 | 8.7 C | -0.02 C |
| 2024 | 10.1 C | +1.45 C |
| 2025 | 9.9 C | +1.26 C |
The annual mean temperature here has risen by 0.4 C (0.3 to 0.5) per decade over 1961 to 2025. In Fahrenheit: 0.7 F (0.6 to 0.8) per decade. The slope is a straight line fitted to 57 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.4 C (0.3 to 0.5) per decade | 0.7 F (0.6 to 0.8) per decade | 1961 to 2025 | 57 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.3 F (0.1 to 0.5) per decade | 1961 to 2025 | 57 | Rise |
| Mean daily minimum | 0.6 C (0.5 to 0.7) per decade | 1.1 F (0.9 to 1.3) per decade | 1961 to 2025 | 57 | 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
1960 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 36.7 C (98.1 F) | 1994 | 31.7 C (89.1 F) | 67 |
| Coldest night (TNn) | -26.1 C (-15.0 F) | 1964 | -15.6 C (3.9 F) | 67 |
| Wettest day (Rx1day) | 239.5 mm (9.4 in) | 1966 | 65.5 mm (2.6 in) | 67 |
| Wettest five days (Rx5day) | 475.4 mm (18.7 in) | 1966 | 98.3 mm (3.9 in) | 67 |
| Longest dry spell (CDD) | 134 days | 1975 | 67 days | 67 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1960 | 32.8 C (91.0 F) |
| 1961 | 33.3 C (91.9 F) |
| 1962 | 31.7 C (89.1 F) |
| 1963 | 30.6 C (87.1 F) |
| 1964 | 30.0 C (86.0 F) |
| 1965 | 28.9 C (84.0 F) |
| 1966 | 31.1 C (88.0 F) |
| 1967 | 31.7 C (89.1 F) |
| 1968 | 31.1 C (88.0 F) |
| 1969 | 30.0 C (86.0 F) |
| 1970 | 32.2 C (90.0 F) |
| 1971 | 31.7 C (89.1 F) |
| 1972 | 34.4 C (93.9 F) |
| 1973 | 32.2 C (90.0 F) |
| 1974 | 33.3 C (91.9 F) |
| 1975 | 31.1 C (88.0 F) |
| 1976 | 31.1 C (88.0 F) |
| 1977 | 31.7 C (89.1 F) |
| 1978 | 31.7 C (89.1 F) |
| 1979 | 32.8 C (91.0 F) |
| 1980 | 32.8 C (91.0 F) |
| 1981 | 33.3 C (91.9 F) |
| 1982 | 30.6 C (87.1 F) |
| 1983 | 31.7 C (89.1 F) |
| 1984 | 30.6 C (87.1 F) |
| 1985 | 33.9 C (93.0 F) |
| 1986 | 31.7 C (89.1 F) |
| 1987 | 28.9 C (84.0 F) |
| 1988 | 30.6 C (87.1 F) |
| 1989 | 32.8 C (91.0 F) |
| 1990 | 30.6 C (87.1 F) |
| 1991 | 31.7 C (89.1 F) |
| 1992 | 28.9 C (84.0 F) |
| 1993 | 30.6 C (87.1 F) |
| 1994 | 36.7 C (98.1 F) |
| 1995 | 32.2 C (90.0 F) |
| 1996 | 32.2 C (90.0 F) |
| 1997 | 30.6 C (87.1 F) |
| 1998 | 34.4 C (93.9 F) |
| 1999 | 31.7 C (89.1 F) |
| 2000 | 32.2 C (90.0 F) |
| 2001 | 32.2 C (90.0 F) |
| 2002 | 33.9 C (93.0 F) |
| 2003 | 33.9 C (93.0 F) |
| 2004 | 32.2 C (90.0 F) |
| 2005 | 34.4 C (93.9 F) |
| 2006 | 30.6 C (87.1 F) |
| 2007 | 34.4 C (93.9 F) |
| 2008 | 32.2 C (90.0 F) |
| 2009 | 31.7 C (89.1 F) |
| 2010 | 31.1 C (88.0 F) |
| 2011 | 32.2 C (90.0 F) |
| 2012 | 31.7 C (89.1 F) |
| 2013 | 32.8 C (91.0 F) |
| 2014 | 30.0 C (86.0 F) |
| 2015 | 30.6 C (87.1 F) |
| 2016 | 31.1 C (88.0 F) |
| 2017 | 31.7 C (89.1 F) |
| 2018 | 31.1 C (88.0 F) |
| 2019 | 30.0 C (86.0 F) |
| 2020 | 30.6 C (87.1 F) |
| 2021 | 32.2 C (90.0 F) |
| 2022 | 30.6 C (87.1 F) |
| 2023 | 33.3 C (91.9 F) |
| 2024 | 33.3 C (91.9 F) |
| 2025 | 30.6 C (87.1 F) |
| 2026 | 31.7 C (89.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1960 | -25.6 C (-14.1 F) |
| 1961 | -14.4 C (6.1 F) |
| 1962 | -23.3 C (-9.9 F) |
| 1963 | -21.1 C (-6.0 F) |
| 1964 | -26.1 C (-15.0 F) |
| 1965 | -22.2 C (-8.0 F) |
| 1966 | -21.1 C (-6.0 F) |
| 1967 | -19.4 C (-2.9 F) |
| 1968 | -20.0 C (-4.0 F) |
| 1969 | -22.2 C (-8.0 F) |
| 1970 | -15.0 C (5.0 F) |
| 1971 | -18.3 C (-0.9 F) |
| 1972 | -17.8 C (0.0 F) |
| 1973 | -21.7 C (-7.1 F) |
| 1974 | -19.4 C (-2.9 F) |
| 1975 | -16.7 C (1.9 F) |
| 1976 | -15.6 C (3.9 F) |
| 1977 | -16.7 C (1.9 F) |
| 1978 | -16.1 C (3.0 F) |
| 1979 | -22.8 C (-9.0 F) |
| 1980 | -10.6 C (12.9 F) |
| 1981 | -13.9 C (7.0 F) |
| 1982 | -18.3 C (-0.9 F) |
| 1983 | -15.6 C (3.9 F) |
| 1984 | -18.9 C (-2.0 F) |
| 1985 | -21.1 C (-6.0 F) |
| 1986 | -14.4 C (6.1 F) |
| 1987 | -22.2 C (-8.0 F) |
| 1988 | -18.9 C (-2.0 F) |
| 1989 | -22.8 C (-9.0 F) |
| 1990 | -25.0 C (-13.0 F) |
| 1991 | -16.1 C (3.0 F) |
| 1992 | -13.9 C (7.0 F) |
| 1993 | -21.7 C (-7.1 F) |
| 1994 | -16.1 C (3.0 F) |
| 1995 | -11.7 C (10.9 F) |
| 1996 | -15.6 C (3.9 F) |
| 1997 | -14.4 C (6.1 F) |
| 1998 | -14.4 C (6.1 F) |
| 1999 | -12.2 C (10.0 F) |
| 2000 | -12.8 C (9.0 F) |
| 2001 | -15.0 C (5.0 F) |
| 2002 | -15.6 C (3.9 F) |
| 2003 | -12.8 C (9.0 F) |
| 2004 | -13.3 C (8.1 F) |
| 2005 | -16.1 C (3.0 F) |
| 2006 | -16.7 C (1.9 F) |
| 2007 | -16.1 C (3.0 F) |
| 2008 | -13.3 C (8.1 F) |
| 2009 | -15.0 C (5.0 F) |
| 2010 | -15.6 C (3.9 F) |
| 2011 | -15.0 C (5.0 F) |
| 2012 | -13.3 C (8.1 F) |
| 2013 | -18.9 C (-2.0 F) |
| 2014 | -12.2 C (10.0 F) |
| 2015 | -15.0 C (5.0 F) |
| 2016 | -14.4 C (6.1 F) |
| 2017 | -15.0 C (5.0 F) |
| 2018 | -15.0 C (5.0 F) |
| 2019 | -18.9 C (-2.0 F) |
| 2020 | -16.1 C (3.0 F) |
| 2021 | -11.1 C (12.0 F) |
| 2022 | -15.6 C (3.9 F) |
| 2023 | -12.2 C (10.0 F) |
| 2024 | -11.7 C (10.9 F) |
| 2025 | -9.4 C (15.1 F) |
| 2026 | -11.1 C (12.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1960 | 36.6 mm (1.4 in) |
| 1961 | 75.9 mm (3.0 in) |
| 1962 | 65.5 mm (2.6 in) |
| 1963 | 81.5 mm (3.2 in) |
| 1964 | 65.3 mm (2.6 in) |
| 1965 | 166.1 mm (6.5 in) |
| 1966 | 239.5 mm (9.4 in) |
| 1967 | 57.9 mm (2.3 in) |
| 1968 | 47.2 mm (1.9 in) |
| 1969 | 238.8 mm (9.4 in) |
| 1970 | 65.0 mm (2.6 in) |
| 1971 | 122.2 mm (4.8 in) |
| 1972 | 49.3 mm (1.9 in) |
| 1973 | 64.5 mm (2.5 in) |
| 1974 | 61.7 mm (2.4 in) |
| 1975 | 54.4 mm (2.1 in) |
| 1976 | 59.4 mm (2.3 in) |
| 1977 | 50.5 mm (2.0 in) |
| 1978 | 96.0 mm (3.8 in) |
| 1979 | 57.4 mm (2.3 in) |
| 1980 | 120.1 mm (4.7 in) |
| 1981 | 36.1 mm (1.4 in) |
| 1982 | 96.0 mm (3.8 in) |
| 1983 | 79.2 mm (3.1 in) |
| 1984 | 45.7 mm (1.8 in) |
| 1985 | 71.1 mm (2.8 in) |
| 1986 | 104.1 mm (4.1 in) |
| 1987 | 46.5 mm (1.8 in) |
| 1988 | 51.8 mm (2.0 in) |
| 1989 | 44.5 mm (1.8 in) |
| 1990 | 58.4 mm (2.3 in) |
| 1991 | 88.4 mm (3.5 in) |
| 1992 | 43.4 mm (1.7 in) |
| 1993 | 124.5 mm (4.9 in) |
| 1994 | 58.4 mm (2.3 in) |
| 1995 | 89.2 mm (3.5 in) |
| 1996 | 82.8 mm (3.3 in) |
| 1997 | 77.2 mm (3.0 in) |
| 1998 | 36.8 mm (1.4 in) |
| 1999 | 19.1 mm (0.8 in) |
| 2000 | 51.1 mm (2.0 in) |
| 2001 | 43.2 mm (1.7 in) |
| 2002 | 76.2 mm (3.0 in) |
| 2003 | 66.0 mm (2.6 in) |
| 2004 | 82.6 mm (3.3 in) |
| 2005 | 117.3 mm (4.6 in) |
| 2006 | 58.4 mm (2.3 in) |
| 2007 | 43.2 mm (1.7 in) |
| 2008 | 127.0 mm (5.0 in) |
| 2009 | 68.6 mm (2.7 in) |
| 2010 | 128.8 mm (5.1 in) |
| 2011 | 54.4 mm (2.1 in) |
| 2012 | 36.8 mm (1.4 in) |
| 2013 | 24.6 mm (1.0 in) |
| 2014 | 87.6 mm (3.4 in) |
| 2015 | 38.1 mm (1.5 in) |
| 2016 | 82.0 mm (3.2 in) |
| 2017 | 30.0 mm (1.2 in) |
| 2018 | 62.5 mm (2.5 in) |
| 2019 | 209.6 mm (8.3 in) |
| 2020 | 48.5 mm (1.9 in) |
| 2021 | 81.5 mm (3.2 in) |
| 2022 | 151.4 mm (6.0 in) |
| 2023 | 85.1 mm (3.4 in) |
| 2024 | 84.8 mm (3.3 in) |
| 2025 | 84.1 mm (3.3 in) |
| 2026 | 73.7 mm (2.9 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1960 | 39.4 mm (1.6 in) |
| 1961 | 77.4 mm (3.0 in) |
| 1962 | 133.1 mm (5.2 in) |
| 1963 | 88.1 mm (3.5 in) |
| 1964 | 105.7 mm (4.2 in) |
| 1965 | 317.3 mm (12.5 in) |
| 1966 | 475.4 mm (18.7 in) |
| 1967 | 123.4 mm (4.9 in) |
| 1968 | 53.5 mm (2.1 in) |
| 1969 | 390.8 mm (15.4 in) |
| 1970 | 129.8 mm (5.1 in) |
| 1971 | 273.9 mm (10.8 in) |
| 1972 | 88.1 mm (3.5 in) |
| 1973 | 91.9 mm (3.6 in) |
| 1974 | 159.3 mm (6.3 in) |
| 1975 | 73.6 mm (2.9 in) |
| 1976 | 130.1 mm (5.1 in) |
| 1977 | 77.6 mm (3.1 in) |
| 1978 | 215.2 mm (8.5 in) |
| 1979 | 113.1 mm (4.5 in) |
| 1980 | 284.2 mm (11.2 in) |
| 1981 | 61.0 mm (2.4 in) |
| 1982 | 108.1 mm (4.3 in) |
| 1983 | 138.9 mm (5.5 in) |
| 1984 | 85.2 mm (3.4 in) |
| 1985 | 71.1 mm (2.8 in) |
| 1986 | 132.8 mm (5.2 in) |
| 1987 | 61.3 mm (2.4 in) |
| 1988 | 78.5 mm (3.1 in) |
| 1989 | 55.7 mm (2.2 in) |
| 1990 | 123.9 mm (4.9 in) |
| 1991 | 90.4 mm (3.6 in) |
| 1992 | 123.9 mm (4.9 in) |
| 1993 | 270.8 mm (10.7 in) |
| 1994 | 125.4 mm (4.9 in) |
| 1995 | 166.6 mm (6.6 in) |
| 1996 | 157.0 mm (6.2 in) |
| 1997 | 79.7 mm (3.1 in) |
| 1998 | 63.2 mm (2.5 in) |
| 1999 | 45.7 mm (1.8 in) |
| 2000 | 91.9 mm (3.6 in) |
| 2001 | 47.0 mm (1.9 in) |
| 2002 | 76.2 mm (3.0 in) |
| 2003 | 94.8 mm (3.7 in) |
| 2004 | 98.0 mm (3.9 in) |
| 2005 | 402.4 mm (15.8 in) |
| 2006 | 69.3 mm (2.7 in) |
| 2007 | 71.2 mm (2.8 in) |
| 2008 | 182.4 mm (7.2 in) |
| 2009 | 113.3 mm (4.5 in) |
| 2010 | 352.9 mm (13.9 in) |
| 2011 | 76.4 mm (3.0 in) |
| 2012 | 45.7 mm (1.8 in) |
| 2013 | 31.2 mm (1.2 in) |
| 2014 | 172.7 mm (6.8 in) |
| 2015 | 40.6 mm (1.6 in) |
| 2016 | 141.0 mm (5.6 in) |
| 2017 | 71.9 mm (2.8 in) |
| 2018 | 80.3 mm (3.2 in) |
| 2019 | 248.8 mm (9.8 in) |
| 2020 | 76.8 mm (3.0 in) |
| 2021 | 90.9 mm (3.6 in) |
| 2022 | 171.7 mm (6.8 in) |
| 2023 | 102.3 mm (4.0 in) |
| 2024 | 157.9 mm (6.2 in) |
| 2025 | 98.3 mm (3.9 in) |
| 2026 | 105.5 mm (4.2 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1960 | 42 days |
| 1961 | 67 days |
| 1962 | 65 days |
| 1963 | 54 days |
| 1964 | 79 days |
| 1965 | 55 days |
| 1966 | 55 days |
| 1967 | 55 days |
| 1968 | 55 days |
| 1969 | 72 days |
| 1970 | 53 days |
| 1971 | 61 days |
| 1972 | 101 days |
| 1973 | 94 days |
| 1974 | 74 days |
| 1975 | 134 days |
| 1976 | 79 days |
| 1977 | 73 days |
| 1978 | 81 days |
| 1979 | 72 days |
| 1980 | 72 days |
| 1981 | 48 days |
| 1982 | 37 days |
| 1983 | 96 days |
| 1984 | 83 days |
| 1985 | 66 days |
| 1986 | 105 days |
| 1987 | 47 days |
| 1988 | 75 days |
| 1989 | 83 days |
| 1990 | 98 days |
| 1991 | 58 days |
| 1992 | 70 days |
| 1993 | 126 days |
| 1994 | 58 days |
| 1995 | 102 days |
| 1996 | 51 days |
| 1997 | 107 days |
| 1998 | 69 days |
| 1999 | 53 days |
| 2000 | 53 days |
| 2001 | 90 days |
| 2002 | 75 days |
| 2003 | 83 days |
| 2004 | 59 days |
| 2005 | 62 days |
| 2006 | 52 days |
| 2007 | 93 days |
| 2008 | 48 days |
| 2009 | 52 days |
| 2010 | 53 days |
| 2011 | 48 days |
| 2012 | 40 days |
| 2013 | 70 days |
| 2014 | 54 days |
| 2015 | 57 days |
| 2016 | 83 days |
| 2017 | 112 days |
| 2018 | 65 days |
| 2019 | 74 days |
| 2020 | 87 days |
| 2021 | 56 days |
| 2022 | 60 days |
| 2023 | 45 days |
| 2024 | 78 days |
| 2025 | 45 days |
| 2026 | 77 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
57 years with a frostAcross 57 years with a frost, the median last spring frost at Big Bear Lake falls on 29 May and the median first autumn frost on 24 September, which leaves a median of 114 days between them.
Fitted over all years, the growing season changes by +13.1 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1993 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 29 May | n/a | 24 May | n/a | -5.0 days per decade |
| First autumn frost | 24 September | n/a | 1 October | n/a | +8.2 days per decade |
| Growing days | 114 days | n/a | 125 days | n/a | +13.1 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
62 years, 1961 to 2025A day with at least 66.4 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 260.3 mm (10.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 66.4 mm (2.6 in) | |
| 5 years | 101.4 mm (4.0 in) | |
| 10 years | 130.2 mm (5.1 in) | |
| 25 years | 174.4 mm (6.9 in) | |
| 50 years | 214.0 mm (8.4 in) | |
| 100 years | 260.3 mm (10.2 in) | Longer than the 62 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, 62 years of values from 1961 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: 239.5 mm (9.4 in) in 1966; 238.8 mm (9.4 in) in 1969; 209.6 mm (8.3 in) in 2019.
Station Changes
2 suspected2 changes were suspected in the annual mean temperature of Big Bear Lake, at 1966 and 1988. Each is measured against neighbouring stations.
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1966 ran 0.8 C (1.4 F) higher than in the years before (likely change).
- Relative to 5 neighbouring stations, the station's annual mean temperature from 1988 ran 0.4 C (0.8 F) lower than in the years before (likely change).
| Year | Shift (C) | Shift (F) | Strength | Neighbours |
|---|---|---|---|---|
| 1966 | +0.8 | +1.4 | likely | 5 |
| 1988 | -0.4 | -0.8 | 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
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Big Bear Lake had a mean temperature of 9.6 C (49.3 F) and 465.5 mm (18.3 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Molina de Aragon (Spain, 9,348 km away), Burgos-Villafria (Spain, 9,128 km away) and Soria (Spain, 9,242 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Molina de Aragon | Spain | 9,348 km (5,809 mi) | 10.0 C (50.0 F) | 523.7 mm (20.6 in) | 0.65 |
| Burgos-Villafria | Spain | 9,128 km (5,672 mi) | 9.9 C (49.8 F) | 572.2 mm (22.5 in) | 0.89 |
| Soria | Spain | 9,242 km (5,743 mi) | 10.5 C (50.8 F) | 518.3 mm (20.4 in) | 1.02 |
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).