San Jacinto Weather Records (USC00047813)
Record envelope, standing records and threshold days for San Jacinto (USC00047813), California, United States, with 79 years of record.
Key Facts for San Jacinto
- San Jacinto (USC00047813) is a weather station in California, United States at 33.80 latitude and -116.98 longitude, 465 m (1,525 ft) above sea level.
- The station reports from 1948 to 2026, 79 years of record.
- 1,464 records set at San Jacinto still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- San Jacinto set a daily record high minimum temperature of 20.0 C (68.0 F) on 5 October 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, 33.80 latitude, -116.98 longitude.
- Elevation: 465 m (1,525 ft).
- Period of record: 1948 to 2026, 79 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 | 32.8 C (91.0 F) | -6.7 C (19.9 F) | 28.3 C (82.9 F) | 1.1 C (34.0 F) |
| Feb | 32.8 C (91.0 F) | -4.4 C (24.1 F) | 32.2 C (90.0 F) | 1.1 C (34.0 F) |
| Mar | 38.9 C (102.0 F) | -3.3 C (26.1 F) | 38.9 C (102.0 F) | 3.9 C (39.0 F) |
| Apr | 39.4 C (102.9 F) | -0.6 C (30.9 F) | 31.1 C (88.0 F) | 6.7 C (44.1 F) |
| May | 43.3 C (109.9 F) | 2.2 C (36.0 F) | 37.8 C (100.0 F) | 8.3 C (46.9 F) |
| Jun | 45.6 C (114.1 F) | 4.4 C (39.9 F) | 37.2 C (99.0 F) | 12.2 C (54.0 F) |
| Jul | 46.1 C (115.0 F) | 7.8 C (46.0 F) | 42.2 C (108.0 F) | 13.9 C (57.0 F) |
| Aug | 46.1 C (115.0 F) | 6.7 C (44.1 F) | 42.2 C (108.0 F) | 18.3 C (64.9 F) |
| Sep | 46.7 C (116.1 F) | 1.7 C (35.1 F) | n/a | n/a |
| Oct | 42.8 C (109.0 F) | -0.6 C (30.9 F) | 38.3 C (100.9 F) | 20.0 C (68.0 F) |
| Nov | 35.6 C (96.1 F) | -3.9 C (25.0 F) | n/a | n/a |
| Dec | 32.2 C (90.0 F) | -7.8 C (18.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1978 | 33 |
| 1979 | 28 |
| 1980 | 44 |
| 1981 | 21 |
| 1982 | 43 |
| 1983 | 39 |
| 1984 | 29 |
| 1985 | 63 |
| 1986 | 35 |
| 1987 | 61 |
| 1988 | 38 |
| 1989 | 62 |
| 1990 | 29 |
| 1991 | 39 |
| 1992 | 8 |
| 1993 | 21 |
| 1994 | 31 |
| 1995 | 34 |
| 1996 | 27 |
| 1997 | 13 |
| 1998 | 26 |
| 1999 | 34 |
| 2000 | 31 |
| 2001 | 25 |
| 2002 | 25 |
| 2003 | 35 |
| 2004 | 14 |
| 2005 | 9 |
| 2006 | 33 |
| 2007 | 21 |
| 2008 | 25 |
| 2009 | 19 |
| 2010 | 32 |
| 2011 | 28 |
| 2012 | 35 |
| 2013 | 28 |
| 2014 | 25 |
| 2015 | 36 |
| 2016 | 29 |
| 2017 | 38 |
| 2018 | 23 |
| 2019 | 21 |
| 2020 | 34 |
| 2021 | 23 |
| 2022 | 19 |
| 2023 | 22 |
| 2024 | 19 |
| 2025 | 24 |
| 2026 | 33 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2019-02-14 | Record daily precipitation | Record daily precipitation 88.4 mm (3.5 in) |
Wettest Day of Each Month
Feb: 88.4 mm (3.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 78.0 mm (3.1 in) | 16 January 1993 |
| Feb | 88.4 mm (3.5 in) | 14 February 2019 |
| Mar | 70.4 mm (2.8 in) | 1 March 1991 |
| Apr | 64.8 mm (2.6 in) | 5 April 2006 |
| May | 50.8 mm (2.0 in) | 23 May 2008 |
| Jun | 21.6 mm (0.9 in) | 6 June 1993 |
| Jul | 38.1 mm (1.5 in) | 24 July 2005 |
| Aug | 37.8 mm (1.5 in) | 26 August 1982 |
| Sep | 46.0 mm (1.8 in) | 26 September 1997 |
| Oct | 35.8 mm (1.4 in) | 21 October 2004 |
| Nov | 48.3 mm (1.9 in) | 21 November 1996 |
| Dec | 73.7 mm (2.9 in) | 1 December 2007 |
Period of Record Coverage
1978 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1978 | 145 | 40% | No |
| 1979 | 265 | 73% | No |
| 1980 | 264 | 72% | No |
| 1981 | 285 | 78% | No |
| 1982 | 343 | 94% | Yes |
| 1983 | 334 | 92% | Yes |
| 1984 | 350 | 96% | Yes |
| 1985 | 316 | 87% | No |
| 1986 | 340 | 93% | Yes |
| 1987 | 343 | 94% | Yes |
| 1988 | 282 | 77% | No |
| 1989 | 274 | 75% | No |
| 1990 | 301 | 82% | No |
| 1991 | 342 | 94% | Yes |
| 1992 | 279 | 76% | No |
| 1993 | 328 | 90% | No |
| 1994 | 339 | 93% | Yes |
| 1995 | 312 | 85% | No |
| 1996 | 303 | 83% | No |
| 1997 | 334 | 92% | Yes |
| 1998 | 296 | 81% | No |
| 1999 | 324 | 89% | No |
| 2000 | 336 | 92% | Yes |
| 2001 | 321 | 88% | No |
| 2002 | 267 | 73% | No |
| 2003 | 270 | 74% | No |
| 2004 | 285 | 78% | No |
| 2005 | 266 | 73% | No |
| 2006 | 260 | 71% | No |
| 2007 | 334 | 92% | Yes |
| 2008 | 302 | 83% | No |
| 2009 | 353 | 97% | Yes |
| 2010 | 351 | 96% | Yes |
| 2011 | 363 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 365 | 100% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 363 | 99% | Yes |
| 2018 | 362 | 99% | Yes |
| 2019 | 364 | 100% | Yes |
| 2020 | 365 | 100% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 361 | 99% | Yes |
| 2026 | 244 | 67% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 5 October 2026 | San Jacinto, US | daily high min (Provisional) | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 1 year | 9 of 100 (Routine) |
| 4 October 2026 | San Jacinto, US | daily high min (Provisional) | 20.6 C (69.1 F) | 2.3 C (4.1 F) | 1 year | 10 of 100 (Routine) |
| 29 August 2026 | San Jacinto, US | daily high min (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 8 years | 7 of 100 (Routine) |
| 28 August 2026 | San Jacinto, US | daily high min (Provisional) | 22.8 C (73.0 F) | 0.6 C (1.1 F) | 15 years | 9 of 100 (Routine) |
| 27 August 2026 | San Jacinto, US | daily high min (Provisional) | 26.1 C (79.0 F) | 2.2 C (4.0 F) | 15 years | 14 of 100 (Routine) |
| 26 August 2026 | San Jacinto, US | daily high min (Tie, Provisional) | 23.3 C (73.9 F) | tie | 32 years | 3 of 100 (Routine) |
| 21 August 2026 | San Jacinto, US | daily high min (Provisional) | 23.9 C (75.0 F) | 1.7 C (3.1 F) | 5 years | 10 of 100 (Routine) |
| 2 August 2026 | San Jacinto, US | daily high max (Tie) | 41.7 C (107.1 F) | tie | 40 years | 4 of 100 (Routine) |
| 1 August 2026 | San Jacinto, US | daily high max (Tie) | 41.7 C (107.1 F) | tie | 28 years | 3 of 100 (Routine) |
| 31 July 2026 | San Jacinto, US | daily high max (Tie) | 42.2 C (108.0 F) | tie | 5 years | 1 of 100 (Routine) |
| 27 July 2026 | San Jacinto, US | daily high min (Tie) | 22.8 C (73.0 F) | tie | 20 years | 2 of 100 (Routine) |
| 1 July 2026 | San Jacinto, US | daily low max | 28.9 C (84.0 F) | 1.1 C (2.0 F) | 31 years | 16 of 100 (Routine) |
| 28 June 2026 | San Jacinto, US | daily low max | 25.6 C (78.1 F) | 1.1 C (2.0 F) | 5 years | 7 of 100 (Routine) |
| 13 June 2026 | San Jacinto, US | daily high min | 18.9 C (66.0 F) | 2.2 C (4.0 F) | 8 years | 13 of 100 (Routine) |
| 24 May 2026 | San Jacinto, US | daily high min (Tie) | 15.0 C (59.0 F) | tie | 24 years | 2 of 100 (Routine) |
| 11 April 2026 | San Jacinto, US | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 8 years | 7 of 100 (Routine) |
| 1 April 2026 | San Jacinto, US | daily high min | 13.3 C (55.9 F) | 0.5 C (0.9 F) | 4 years | 6 of 100 (Routine) |
| 31 March 2026 | San Jacinto, US | daily high min | 15.0 C (59.0 F) | 2.8 C (5.0 F) | 4 years | 14 of 100 (Routine) |
| 30 March 2026 | San Jacinto, US | daily high min (Tie) | 12.2 C (54.0 F) | tie | 12 years | 1 of 100 (Routine) |
| 29 March 2026 | San Jacinto, US | daily high min | 14.4 C (57.9 F) | 1.1 C (2.0 F) | 24 years | 14 of 100 (Routine) |
Climate Trend
29 complete years, 1982 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1982 | 16.7 C | -1.96 C |
| 1983 | 17.5 C | -1.09 C |
| 1984 | 18.4 C | -0.20 C |
| 1986 | 18.3 C | -0.29 C |
| 1987 | 17.6 C | -1.00 C |
| 1991 | 18.2 C | -0.47 C |
| 1993 | 17.8 C | -0.81 C |
| 1994 | 17.7 C | -0.91 C |
| 1995 | 18.3 C | -0.32 C |
| 1997 | 18.4 C | -0.19 C |
| 2000 | 18.3 C | -0.30 C |
| 2001 | 18.3 C | -0.38 C |
| 2007 | 18.9 C | +0.27 C |
| 2009 | 18.6 C | -0.04 C |
| 2011 | 17.8 C | -0.81 C |
| 2012 | 19.4 C | +0.74 C |
| 2013 | 18.9 C | +0.25 C |
| 2014 | 19.9 C | +1.25 C |
| 2015 | 19.4 C | +0.76 C |
| 2016 | 19.3 C | +0.64 C |
| 2017 | 19.8 C | +1.18 C |
| 2018 | 19.5 C | +0.83 C |
| 2019 | 18.3 C | -0.34 C |
| 2020 | 19.4 C | +0.79 C |
| 2021 | 19.2 C | +0.58 C |
| 2022 | 19.6 C | +0.97 C |
| 2023 | 18.2 C | -0.44 C |
| 2024 | 19.2 C | +0.61 C |
| 2025 | 19.4 C | +0.80 C |
This station does not have enough complete years (30 are needed) to fit a temperature trend.
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
1948 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 46.7 C (116.1 F) | 1982 | 43.3 C (109.9 F) | 49 |
| Coldest night (TNn) | -7.8 C (18.0 F) | 1978 | -2.8 C (27.0 F) | 49 |
| Wettest day (Rx1day) | 88.4 mm (3.5 in) | 2019 | 36.1 mm (1.4 in) | 53 |
| Wettest five days (Rx5day) | 192.5 mm (7.6 in) | 1993 | 56.8 mm (2.2 in) | 53 |
| Longest dry spell (CDD) | 231 days | 2009 | 97 days | 53 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1978 | 42.2 C (108.0 F) |
| 1979 | 43.3 C (109.9 F) |
| 1980 | 43.9 C (111.0 F) |
| 1981 | 45.0 C (113.0 F) |
| 1982 | 46.7 C (116.1 F) |
| 1983 | 43.3 C (109.9 F) |
| 1984 | 43.3 C (109.9 F) |
| 1985 | 46.1 C (115.0 F) |
| 1986 | 43.3 C (109.9 F) |
| 1987 | 41.7 C (107.1 F) |
| 1988 | 45.0 C (113.0 F) |
| 1989 | 45.0 C (113.0 F) |
| 1990 | 45.0 C (113.0 F) |
| 1991 | 42.8 C (109.0 F) |
| 1992 | 42.8 C (109.0 F) |
| 1993 | 41.7 C (107.1 F) |
| 1994 | 43.9 C (111.0 F) |
| 1995 | 46.1 C (115.0 F) |
| 1996 | 42.8 C (109.0 F) |
| 1997 | 45.0 C (113.0 F) |
| 1998 | 45.0 C (113.0 F) |
| 1999 | 42.2 C (108.0 F) |
| 2000 | 42.2 C (108.0 F) |
| 2001 | 41.7 C (107.1 F) |
| 2002 | 43.3 C (109.9 F) |
| 2003 | 42.8 C (109.0 F) |
| 2004 | 41.7 C (107.1 F) |
| 2005 | 41.7 C (107.1 F) |
| 2006 | 45.0 C (113.0 F) |
| 2007 | 44.4 C (111.9 F) |
| 2008 | 43.3 C (109.9 F) |
| 2009 | 43.3 C (109.9 F) |
| 2010 | 44.4 C (111.9 F) |
| 2011 | 42.8 C (109.0 F) |
| 2012 | 43.3 C (109.9 F) |
| 2013 | 43.3 C (109.9 F) |
| 2014 | 43.9 C (111.0 F) |
| 2015 | 42.2 C (108.0 F) |
| 2016 | 45.0 C (113.0 F) |
| 2017 | 44.4 C (111.9 F) |
| 2018 | 45.6 C (114.1 F) |
| 2019 | 40.6 C (105.1 F) |
| 2020 | 46.1 C (115.0 F) |
| 2021 | 42.2 C (108.0 F) |
| 2022 | 42.2 C (108.0 F) |
| 2023 | 41.7 C (107.1 F) |
| 2024 | 45.6 C (114.1 F) |
| 2025 | 41.7 C (107.1 F) |
| 2026 | 42.2 C (108.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1948 | n/a |
| 1949 | n/a |
| 1950 | n/a |
| 1951 | n/a |
| 1978 | -7.8 C (18.0 F) |
| 1979 | -3.9 C (25.0 F) |
| 1980 | -1.7 C (28.9 F) |
| 1981 | -5.0 C (23.0 F) |
| 1982 | -3.9 C (25.0 F) |
| 1983 | -2.8 C (27.0 F) |
| 1984 | -2.8 C (27.0 F) |
| 1985 | -4.4 C (24.1 F) |
| 1986 | -3.9 C (25.0 F) |
| 1987 | -6.1 C (21.0 F) |
| 1988 | -4.4 C (24.1 F) |
| 1989 | -3.9 C (25.0 F) |
| 1990 | -7.8 C (18.0 F) |
| 1991 | -2.8 C (27.0 F) |
| 1992 | -2.8 C (27.0 F) |
| 1993 | -3.3 C (26.1 F) |
| 1994 | -5.6 C (21.9 F) |
| 1995 | -1.1 C (30.0 F) |
| 1996 | -1.7 C (28.9 F) |
| 1997 | -3.9 C (25.0 F) |
| 1998 | -5.0 C (23.0 F) |
| 1999 | -1.7 C (28.9 F) |
| 2000 | -2.2 C (28.0 F) |
| 2001 | -2.8 C (27.0 F) |
| 2002 | -2.2 C (28.0 F) |
| 2003 | -4.4 C (24.1 F) |
| 2004 | -3.3 C (26.1 F) |
| 2005 | 0.6 C (33.1 F) |
| 2006 | -3.3 C (26.1 F) |
| 2007 | -6.7 C (19.9 F) |
| 2008 | -0.6 C (30.9 F) |
| 2009 | -2.2 C (28.0 F) |
| 2010 | -2.8 C (27.0 F) |
| 2011 | -2.2 C (28.0 F) |
| 2012 | -2.2 C (28.0 F) |
| 2013 | -3.9 C (25.0 F) |
| 2014 | -1.7 C (28.9 F) |
| 2015 | -3.3 C (26.1 F) |
| 2016 | -1.1 C (30.0 F) |
| 2017 | -1.7 C (28.9 F) |
| 2018 | -1.7 C (28.9 F) |
| 2019 | -1.7 C (28.9 F) |
| 2020 | -2.2 C (28.0 F) |
| 2021 | 0.0 C (32.0 F) |
| 2022 | -1.1 C (30.0 F) |
| 2023 | -1.7 C (28.9 F) |
| 2024 | -1.1 C (30.0 F) |
| 2025 | 0.0 C (32.0 F) |
| 2026 | 1.1 C (34.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1948 | 21.1 mm (0.8 in) |
| 1949 | 13.2 mm (0.5 in) |
| 1950 | 15.5 mm (0.6 in) |
| 1951 | 26.7 mm (1.1 in) |
| 1978 | 22.9 mm (0.9 in) |
| 1979 | 58.9 mm (2.3 in) |
| 1980 | 30.0 mm (1.2 in) |
| 1981 | 36.1 mm (1.4 in) |
| 1982 | 50.3 mm (2.0 in) |
| 1983 | 41.9 mm (1.6 in) |
| 1984 | 23.1 mm (0.9 in) |
| 1985 | 43.2 mm (1.7 in) |
| 1986 | 35.6 mm (1.4 in) |
| 1987 | 32.8 mm (1.3 in) |
| 1988 | 31.5 mm (1.2 in) |
| 1989 | 23.4 mm (0.9 in) |
| 1990 | 25.1 mm (1.0 in) |
| 1991 | 70.4 mm (2.8 in) |
| 1992 | 52.8 mm (2.1 in) |
| 1993 | 78.0 mm (3.1 in) |
| 1994 | 29.2 mm (1.1 in) |
| 1995 | 63.5 mm (2.5 in) |
| 1996 | 48.3 mm (1.9 in) |
| 1997 | 46.0 mm (1.8 in) |
| 1998 | 56.1 mm (2.2 in) |
| 1999 | 24.6 mm (1.0 in) |
| 2000 | 27.4 mm (1.1 in) |
| 2001 | 22.6 mm (0.9 in) |
| 2002 | 33.8 mm (1.3 in) |
| 2003 | 50.8 mm (2.0 in) |
| 2004 | 48.3 mm (1.9 in) |
| 2005 | 66.0 mm (2.6 in) |
| 2006 | 64.8 mm (2.6 in) |
| 2007 | 73.7 mm (2.9 in) |
| 2008 | 50.8 mm (2.0 in) |
| 2009 | 36.1 mm (1.4 in) |
| 2010 | 48.5 mm (1.9 in) |
| 2011 | 22.6 mm (0.9 in) |
| 2012 | 31.0 mm (1.2 in) |
| 2013 | 22.6 mm (0.9 in) |
| 2014 | 73.4 mm (2.9 in) |
| 2015 | 32.8 mm (1.3 in) |
| 2016 | 35.6 mm (1.4 in) |
| 2017 | 31.0 mm (1.2 in) |
| 2018 | 57.2 mm (2.3 in) |
| 2019 | 88.4 mm (3.5 in) |
| 2020 | 39.4 mm (1.6 in) |
| 2021 | 41.9 mm (1.6 in) |
| 2022 | 17.8 mm (0.7 in) |
| 2023 | 39.4 mm (1.6 in) |
| 2024 | 43.4 mm (1.7 in) |
| 2025 | 40.4 mm (1.6 in) |
| 2026 | 16.0 mm (0.6 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1948 | 28.9 mm (1.1 in) |
| 1949 | 18.4 mm (0.7 in) |
| 1950 | 31.2 mm (1.2 in) |
| 1951 | 40.2 mm (1.6 in) |
| 1978 | 58.8 mm (2.3 in) |
| 1979 | 68.0 mm (2.7 in) |
| 1980 | 41.2 mm (1.6 in) |
| 1981 | 51.3 mm (2.0 in) |
| 1982 | 80.1 mm (3.2 in) |
| 1983 | 125.7 mm (4.9 in) |
| 1984 | 50.9 mm (2.0 in) |
| 1985 | 54.6 mm (2.1 in) |
| 1986 | 95.5 mm (3.8 in) |
| 1987 | 52.4 mm (2.1 in) |
| 1988 | 37.3 mm (1.5 in) |
| 1989 | 35.1 mm (1.4 in) |
| 1990 | 52.8 mm (2.1 in) |
| 1991 | 136.2 mm (5.4 in) |
| 1992 | 80.5 mm (3.2 in) |
| 1993 | 192.5 mm (7.6 in) |
| 1994 | 34.5 mm (1.4 in) |
| 1995 | 94.2 mm (3.7 in) |
| 1996 | 54.1 mm (2.1 in) |
| 1997 | 56.8 mm (2.2 in) |
| 1998 | 120.3 mm (4.7 in) |
| 1999 | 27.0 mm (1.1 in) |
| 2000 | 66.0 mm (2.6 in) |
| 2001 | 43.7 mm (1.7 in) |
| 2002 | 54.7 mm (2.2 in) |
| 2003 | 56.1 mm (2.2 in) |
| 2004 | 72.1 mm (2.8 in) |
| 2005 | 162.5 mm (6.4 in) |
| 2006 | 64.8 mm (2.6 in) |
| 2007 | 82.9 mm (3.3 in) |
| 2008 | 59.8 mm (2.4 in) |
| 2009 | 52.9 mm (2.1 in) |
| 2010 | 149.5 mm (5.9 in) |
| 2011 | 47.1 mm (1.9 in) |
| 2012 | 35.1 mm (1.4 in) |
| 2013 | 32.8 mm (1.3 in) |
| 2014 | 99.1 mm (3.9 in) |
| 2015 | 45.5 mm (1.8 in) |
| 2016 | 63.0 mm (2.5 in) |
| 2017 | 104.1 mm (4.1 in) |
| 2018 | 62.2 mm (2.4 in) |
| 2019 | 93.5 mm (3.7 in) |
| 2020 | 82.1 mm (3.2 in) |
| 2021 | 84.8 mm (3.3 in) |
| 2022 | 32.3 mm (1.3 in) |
| 2023 | 67.1 mm (2.6 in) |
| 2024 | 84.3 mm (3.3 in) |
| 2025 | 46.0 mm (1.8 in) |
| 2026 | 40.9 mm (1.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1948 | 108 days |
| 1949 | 151 days |
| 1950 | 198 days |
| 1951 | 64 days |
| 1978 | 41 days |
| 1979 | 42 days |
| 1980 | 196 days |
| 1981 | 64 days |
| 1982 | 51 days |
| 1983 | 71 days |
| 1984 | 60 days |
| 1985 | 112 days |
| 1986 | 105 days |
| 1987 | 110 days |
| 1988 | 73 days |
| 1989 | 81 days |
| 1990 | 94 days |
| 1991 | 93 days |
| 1992 | 67 days |
| 1993 | 127 days |
| 1994 | 132 days |
| 1995 | 100 days |
| 1996 | 194 days |
| 1997 | 111 days |
| 1998 | 88 days |
| 1999 | 74 days |
| 2000 | 94 days |
| 2001 | 131 days |
| 2002 | 127 days |
| 2003 | 83 days |
| 2004 | 197 days |
| 2005 | 76 days |
| 2006 | 59 days |
| 2007 | 134 days |
| 2008 | 167 days |
| 2009 | 231 days |
| 2010 | 129 days |
| 2011 | 54 days |
| 2012 | 48 days |
| 2013 | 113 days |
| 2014 | 99 days |
| 2015 | 66 days |
| 2016 | 135 days |
| 2017 | 82 days |
| 2018 | 93 days |
| 2019 | 176 days |
| 2020 | 90 days |
| 2021 | 89 days |
| 2022 | 139 days |
| 2023 | 97 days |
| 2024 | 137 days |
| 2025 | 118 days |
| 2026 | 96 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
21 years with a frostAcross 21 years with a frost, the median last spring frost at San Jacinto falls on 26 February and the median first autumn frost on 9 December, which leaves a median of 282 days between them.
| Measure | Median, all years | Earliest period | Recent period (1982 to 2018) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 26 February | n/a | 26 February | n/a | n/a |
| First autumn frost | 9 December | n/a | 9 December | n/a | n/a |
| Growing days | 282 days | n/a | 282 days | n/a | n/a |
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
42 years, 1949 to 2025A day with at least 37.4 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 99.5 mm (3.9 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 37.4 mm (1.5 in) | |
| 5 years | 53.5 mm (2.1 in) | |
| 10 years | 64.3 mm (2.5 in) | |
| 25 years | 78.3 mm (3.1 in) | |
| 50 years | 88.8 mm (3.5 in) | Longer than the 42 years of record |
| 100 years | 99.5 mm (3.9 in) | Longer than the 42 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, 42 years of values from 1949 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: 88.4 mm (3.5 in) in 2019; 78.0 mm (3.1 in) in 1993; 73.7 mm (2.9 in) in 2007.
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).