Arcata Eureka AP Weather Records (USW00024283)
Record envelope, standing records and threshold days for Arcata Eureka AP (USW00024283), California, United States, with 35 years of record.
Key Facts for Arcata Eureka AP
- Arcata Eureka AP (USW00024283) is a weather station in California, United States at 40.98 latitude and -124.10 longitude, 64 m (211 ft) above sea level.
- The station reports from 1992 to 2026, 35 years of record.
- 1,464 records set at Arcata Eureka AP still stand.
- Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
- Arcata Eureka AP tied a daily record high minimum temperature of 13.9 C (57.0 F) on 18 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, 40.98 latitude, -124.10 longitude.
- Elevation: 64 m (211 ft).
- Period of record: 1992 to 2026, 35 years.
- Eligible elements: tmax, tmin.
Daily Record Envelope and 2026
9 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 24.4 C (75.9 F) | -4.9 C (23.2 F) | 20.6 C (69.1 F) | 0.6 C (33.1 F) |
| Feb | 26.7 C (80.1 F) | -3.8 C (25.2 F) | 20.0 C (68.0 F) | -1.1 C (30.0 F) |
| Mar | 24.4 C (75.9 F) | -2.7 C (27.1 F) | 19.4 C (66.9 F) | 1.7 C (35.1 F) |
| Apr | 26.1 C (79.0 F) | -1.6 C (29.1 F) | 20.0 C (68.0 F) | 0.0 C (32.0 F) |
| May | 34.4 C (93.9 F) | -1.1 C (30.0 F) | 16.7 C (62.1 F) | 3.9 C (39.0 F) |
| Jun | 28.9 C (84.0 F) | 2.2 C (36.0 F) | 18.9 C (66.0 F) | 3.9 C (39.0 F) |
| Jul | 27.8 C (82.0 F) | 5.6 C (42.1 F) | 22.2 C (72.0 F) | 8.3 C (46.9 F) |
| Aug | 27.2 C (81.0 F) | 3.3 C (37.9 F) | 21.7 C (71.1 F) | 8.3 C (46.9 F) |
| Sep | 35.6 C (96.1 F) | 2.8 C (37.0 F) | 23.9 C (75.0 F) | 6.7 C (44.1 F) |
| Oct | 32.8 C (91.0 F) | -1.7 C (28.9 F) | 17.2 C (63.0 F) | 2.2 C (36.0 F) |
| Nov | 26.1 C (79.0 F) | -2.8 C (27.0 F) | n/a | n/a |
| Dec | 23.3 C (73.9 F) | -5.6 C (21.9 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1992 | 52 |
| 1993 | 57 |
| 1994 | 42 |
| 1995 | 65 |
| 1996 | 52 |
| 1997 | 58 |
| 1998 | 26 |
| 1999 | 59 |
| 2000 | 29 |
| 2001 | 42 |
| 2002 | 78 |
| 2003 | 42 |
| 2004 | 36 |
| 2005 | 37 |
| 2006 | 48 |
| 2007 | 52 |
| 2008 | 81 |
| 2009 | 59 |
| 2010 | 51 |
| 2011 | 37 |
| 2012 | 45 |
| 2013 | 51 |
| 2014 | 36 |
| 2015 | 30 |
| 2016 | 38 |
| 2017 | 31 |
| 2018 | 24 |
| 2019 | 41 |
| 2020 | 20 |
| 2021 | 24 |
| 2022 | 24 |
| 2023 | 42 |
| 2024 | 23 |
| 2025 | 24 |
| 2026 | 8 |
All-Time Record Progression
2 new records| Date | Kind | Detail |
|---|---|---|
| 2023-02-22 | Record low maximum temperature | Record low maximum temperature 3.9 C (39.0 F) |
| 2023-02-23 | Record low maximum temperature | Record low maximum temperature 3.3 C (37.9 F) |
Wettest Day of Each Month
Dec: 159.8 mm (6.3 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 79.0 mm (3.1 in) | 13 January 2024 |
| Feb | 68.8 mm (2.7 in) | 19 February 2002 |
| Mar | 70.6 mm (2.8 in) | 9 March 2014 |
| Apr | 49.3 mm (1.9 in) | 27 April 2010 |
| May | 49.5 mm (1.9 in) | 4 May 2009 |
| Jun | 35.8 mm (1.4 in) | 2 June 2010 |
| Jul | 17.5 mm (0.7 in) | 17 July 2007 |
| Aug | 33.5 mm (1.3 in) | 23 August 2024 |
| Sep | 66.5 mm (2.6 in) | 24 September 2014 |
| Oct | 67.8 mm (2.7 in) | 19 October 2007 |
| Nov | 120.1 mm (4.7 in) | 21 November 1998 |
| Dec | 159.8 mm (6.3 in) | 27 December 2002 |
Period of Record Coverage
1992 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1992 | 275 | 75% | No |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 363 | 99% | Yes |
| 1998 | 334 | 92% | Yes |
| 1999 | 363 | 99% | Yes |
| 2000 | 365 | 100% | Yes |
| 2001 | 362 | 99% | Yes |
| 2002 | 363 | 99% | Yes |
| 2003 | 364 | 100% | Yes |
| 2004 | 359 | 98% | Yes |
| 2005 | 362 | 99% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 364 | 99% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 364 | 100% | Yes |
| 2014 | 361 | 99% | Yes |
| 2015 | 364 | 100% | Yes |
| 2016 | 364 | 99% | Yes |
| 2017 | 364 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 364 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 365 | 100% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 364 | 99% | Yes |
| 2025 | 365 | 100% | Yes |
| 2026 | 283 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 18 September 2026 | Arcata Eureka AP, US | daily high min (Tie, Provisional) | 13.9 C (57.0 F) | tie | 16 years | 1 of 100 (Routine) |
| 9 September 2026 | Arcata Eureka AP, US | daily high max (Provisional) | 23.9 C (75.0 F) | 0.6 C (1.1 F) | 4 years | 5 of 100 (Routine) |
| 3 August 2026 | Arcata Eureka AP, US | daily high max | 21.1 C (70.0 F) | 0.5 C (0.9 F) | 5 years | 6 of 100 (Routine) |
| 1 August 2026 | Arcata Eureka AP, US | daily high max | 21.7 C (71.1 F) | 0.6 C (1.1 F) | 32 years | 14 of 100 (Routine) |
| 16 July 2026 | Arcata Eureka AP, US | daily low min | 8.3 C (46.9 F) | 0.6 C (1.1 F) | 29 years | 14 of 100 (Routine) |
| 19 June 2026 | Arcata Eureka AP, US | daily high min (Tie) | 12.2 C (54.0 F) | tie | 27 years | 2 of 100 (Routine) |
| 14 June 2026 | Arcata Eureka AP, US | daily low max (Tie) | 13.9 C (57.0 F) | tie | 17 years | 2 of 100 (Routine) |
| 7 June 2026 | Arcata Eureka AP, US | daily low max (Tie) | 14.4 C (57.9 F) | tie | 27 years | 2 of 100 (Routine) |
| 10 May 2026 | Arcata Eureka AP, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 28 years | 2 of 100 (Routine) |
| 4 April 2026 | Arcata Eureka AP, US | daily high max | 20.0 C (68.0 F) | 1.7 C (3.1 F) | 8 years | 11 of 100 (Routine) |
| 24 March 2026 | Arcata Eureka AP, US | daily high max (Tie) | 19.4 C (66.9 F) | tie | 32 years | 3 of 100 (Routine) |
| 28 February 2026 | Arcata Eureka AP, US | daily high max | 20.0 C (68.0 F) | 0.6 C (1.1 F) | 16 years | 9 of 100 (Routine) |
| 28 February 2026 | Arcata Eureka AP, US | daily high min (Tie) | 10.0 C (50.0 F) | tie | 31 years | 3 of 100 (Routine) |
| 25 February 2026 | Arcata Eureka AP, US | daily high min | 10.0 C (50.0 F) | 0.6 C (1.1 F) | 26 years | 11 of 100 (Routine) |
| 24 February 2026 | Arcata Eureka AP, US | daily high min | 12.8 C (55.0 F) | 2.8 C (5.0 F) | 31 years | 20 of 100 (Routine) |
| 23 February 2026 | Arcata Eureka AP, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 0 years | 0 of 100 (Routine) |
| 22 February 2026 | Arcata Eureka AP, US | daily high max | 18.3 C (64.9 F) | 1.1 C (2.0 F) | 11 years | 9 of 100 (Routine) |
| 22 February 2026 | Arcata Eureka AP, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 21 February 2026 | Arcata Eureka AP, US | daily high min (Tie) | 8.9 C (48.0 F) | tie | 31 years | 3 of 100 (Routine) |
| 18 February 2026 | Arcata Eureka AP, US | daily low max (Tie) | 8.9 C (48.0 F) | tie | 18 years | 2 of 100 (Routine) |
Climate Trend
32 complete years, 1993 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1993 | 11.0 C | -0.10 C |
| 1994 | 10.6 C | -0.54 C |
| 1995 | 12.0 C | +0.84 C |
| 1996 | 11.7 C | +0.58 C |
| 1997 | 12.3 C | +1.18 C |
| 1999 | 10.9 C | -0.20 C |
| 2000 | 11.8 C | +0.61 C |
| 2001 | 10.4 C | -0.73 C |
| 2002 | 10.4 C | -0.74 C |
| 2003 | 11.3 C | +0.20 C |
| 2004 | 11.6 C | +0.45 C |
| 2005 | 11.1 C | -0.09 C |
| 2006 | 10.8 C | -0.39 C |
| 2007 | 10.4 C | -0.75 C |
| 2008 | 10.0 C | -1.16 C |
| 2009 | 10.6 C | -0.57 C |
| 2010 | 10.8 C | -0.34 C |
| 2011 | 10.2 C | -0.90 C |
| 2012 | 10.4 C | -0.75 C |
| 2013 | 10.2 C | -0.94 C |
| 2014 | 12.4 C | +1.29 C |
| 2015 | 11.9 C | +0.72 C |
| 2016 | 12.1 C | +0.96 C |
| 2017 | 11.4 C | +0.27 C |
| 2018 | 11.6 C | +0.42 C |
| 2019 | 11.6 C | +0.41 C |
| 2020 | 11.4 C | +0.21 C |
| 2021 | 10.6 C | -0.56 C |
| 2022 | 10.8 C | -0.31 C |
| 2023 | 11.4 C | +0.22 C |
| 2024 | 11.5 C | +0.40 C |
| 2025 | 11.3 C | +0.19 C |
The fitted trend in annual mean temperature here over 1993 to 2025 is 0.03 C (-0.23 to 0.28) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.05 F (-0.41 to 0.51) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.03 C (-0.23 to 0.28) per decade | 0.05 F (-0.41 to 0.51) per decade | 1993 to 2025 | 32 | Not clearly different from zero |
| Mean daily maximum | -0.1 C (-0.4 to 0.2) per decade | -0.2 F (-0.6 to 0.3) per decade | 1993 to 2025 | 32 | Not clearly different from zero |
| Mean daily minimum | 0.1 C (-0.1 to 0.4) per decade | 0.3 F (-0.2 to 0.7) per decade | 1993 to 2025 | 32 | 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
1992 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.6 C (96.1 F) | 2017 | 27.8 C (82.0 F) | 35 |
| Coldest night (TNn) | -5.6 C (21.9 F) | 2005 | -2.2 C (28.0 F) | 35 |
| Wettest day (Rx1day) | 159.8 mm (6.3 in) | 2002 | 57.4 mm (2.3 in) | 29 |
| Wettest five days (Rx5day) | 276.4 mm (10.9 in) | 2002 | 117.7 mm (4.6 in) | 29 |
| Longest dry spell (CDD) | 113 days | 2006 | 74 days | 29 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1992 | 30.0 C (86.0 F) |
| 1993 | 31.7 C (89.1 F) |
| 1994 | 25.6 C (78.1 F) |
| 1995 | 26.7 C (80.1 F) |
| 1996 | 31.1 C (88.0 F) |
| 1997 | 26.7 C (80.1 F) |
| 1998 | 27.2 C (81.0 F) |
| 1999 | 30.0 C (86.0 F) |
| 2000 | 31.1 C (88.0 F) |
| 2001 | 25.6 C (78.1 F) |
| 2002 | 27.8 C (82.0 F) |
| 2003 | 32.8 C (91.0 F) |
| 2004 | 30.0 C (86.0 F) |
| 2005 | 24.4 C (75.9 F) |
| 2006 | 27.8 C (82.0 F) |
| 2007 | 25.6 C (78.1 F) |
| 2008 | 34.4 C (93.9 F) |
| 2009 | 26.7 C (80.1 F) |
| 2010 | 25.6 C (78.1 F) |
| 2011 | 23.3 C (73.9 F) |
| 2012 | 23.9 C (75.0 F) |
| 2013 | 31.1 C (88.0 F) |
| 2014 | 27.8 C (82.0 F) |
| 2015 | 28.9 C (84.0 F) |
| 2016 | 26.7 C (80.1 F) |
| 2017 | 35.6 C (96.1 F) |
| 2018 | 25.0 C (77.0 F) |
| 2019 | 31.7 C (89.1 F) |
| 2020 | 32.8 C (91.0 F) |
| 2021 | 27.8 C (82.0 F) |
| 2022 | 25.6 C (78.1 F) |
| 2023 | 28.9 C (84.0 F) |
| 2024 | 27.2 C (81.0 F) |
| 2025 | 24.4 C (75.9 F) |
| 2026 | 23.9 C (75.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1992 | -1.1 C (30.0 F) |
| 1993 | -2.2 C (28.0 F) |
| 1994 | -2.2 C (28.0 F) |
| 1995 | -1.1 C (30.0 F) |
| 1996 | -2.2 C (28.0 F) |
| 1997 | -3.3 C (26.1 F) |
| 1998 | -0.6 C (30.9 F) |
| 1999 | -1.7 C (28.9 F) |
| 2000 | 0.0 C (32.0 F) |
| 2001 | -2.8 C (27.0 F) |
| 2002 | -4.4 C (24.1 F) |
| 2003 | -2.2 C (28.0 F) |
| 2004 | -2.8 C (27.0 F) |
| 2005 | -5.6 C (21.9 F) |
| 2006 | -2.7 C (27.1 F) |
| 2007 | -4.9 C (23.2 F) |
| 2008 | -4.3 C (24.3 F) |
| 2009 | -3.8 C (25.2 F) |
| 2010 | -2.1 C (28.2 F) |
| 2011 | -3.8 C (25.2 F) |
| 2012 | -2.1 C (28.2 F) |
| 2013 | -4.9 C (23.2 F) |
| 2014 | -1.0 C (30.2 F) |
| 2015 | -1.6 C (29.1 F) |
| 2016 | -2.7 C (27.1 F) |
| 2017 | -2.7 C (27.1 F) |
| 2018 | -2.7 C (27.1 F) |
| 2019 | -2.1 C (28.2 F) |
| 2020 | -2.1 C (28.2 F) |
| 2021 | -2.7 C (27.1 F) |
| 2022 | -2.7 C (27.1 F) |
| 2023 | -2.1 C (28.2 F) |
| 2024 | -1.0 C (30.2 F) |
| 2025 | -3.2 C (26.2 F) |
| 2026 | -1.1 C (30.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | 120.1 mm (4.7 in) |
| 1999 | 53.8 mm (2.1 in) |
| 2000 | 48.0 mm (1.9 in) |
| 2001 | 54.1 mm (2.1 in) |
| 2002 | 159.8 mm (6.3 in) |
| 2003 | 45.2 mm (1.8 in) |
| 2004 | 53.1 mm (2.1 in) |
| 2005 | 48.0 mm (1.9 in) |
| 2006 | 44.2 mm (1.7 in) |
| 2007 | 67.8 mm (2.7 in) |
| 2008 | 61.5 mm (2.4 in) |
| 2009 | 55.6 mm (2.2 in) |
| 2010 | 61.7 mm (2.4 in) |
| 2011 | 43.9 mm (1.7 in) |
| 2012 | 68.1 mm (2.7 in) |
| 2013 | 51.8 mm (2.0 in) |
| 2014 | 70.6 mm (2.8 in) |
| 2015 | 73.4 mm (2.9 in) |
| 2016 | 74.2 mm (2.9 in) |
| 2017 | 38.6 mm (1.5 in) |
| 2018 | 43.9 mm (1.7 in) |
| 2019 | 63.2 mm (2.5 in) |
| 2020 | 35.3 mm (1.4 in) |
| 2021 | 49.8 mm (2.0 in) |
| 2022 | 57.4 mm (2.3 in) |
| 2023 | 62.7 mm (2.5 in) |
| 2024 | 79.0 mm (3.1 in) |
| 2025 | 75.9 mm (3.0 in) |
| 2026 | 61.0 mm (2.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | 223.2 mm (8.8 in) |
| 1999 | 90.7 mm (3.6 in) |
| 2000 | 134.9 mm (5.3 in) |
| 2001 | 97.0 mm (3.8 in) |
| 2002 | 276.4 mm (10.9 in) |
| 2003 | 116.6 mm (4.6 in) |
| 2004 | 106.7 mm (4.2 in) |
| 2005 | 132.3 mm (5.2 in) |
| 2006 | 123.0 mm (4.8 in) |
| 2007 | 119.4 mm (4.7 in) |
| 2008 | 126.5 mm (5.0 in) |
| 2009 | 86.4 mm (3.4 in) |
| 2010 | 105.1 mm (4.1 in) |
| 2011 | 96.2 mm (3.8 in) |
| 2012 | 172.0 mm (6.8 in) |
| 2013 | 63.7 mm (2.5 in) |
| 2014 | 115.6 mm (4.6 in) |
| 2015 | 196.6 mm (7.7 in) |
| 2016 | 146.0 mm (5.7 in) |
| 2017 | 110.3 mm (4.3 in) |
| 2018 | 96.0 mm (3.8 in) |
| 2019 | 192.7 mm (7.6 in) |
| 2020 | 75.1 mm (3.0 in) |
| 2021 | 83.8 mm (3.3 in) |
| 2022 | 123.9 mm (4.9 in) |
| 2023 | 110.3 mm (4.3 in) |
| 2024 | 154.7 mm (6.1 in) |
| 2025 | 144.0 mm (5.7 in) |
| 2026 | 117.7 mm (4.6 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | 77 days |
| 1999 | 54 days |
| 2000 | 80 days |
| 2001 | 32 days |
| 2002 | 79 days |
| 2003 | 63 days |
| 2004 | 49 days |
| 2005 | 88 days |
| 2006 | 113 days |
| 2007 | 31 days |
| 2008 | 77 days |
| 2009 | 62 days |
| 2010 | 89 days |
| 2011 | 23 days |
| 2012 | 87 days |
| 2013 | 82 days |
| 2014 | 81 days |
| 2015 | 51 days |
| 2016 | 84 days |
| 2017 | 88 days |
| 2018 | 111 days |
| 2019 | 73 days |
| 2020 | 72 days |
| 2021 | 52 days |
| 2022 | 74 days |
| 2023 | 58 days |
| 2024 | 74 days |
| 2025 | 95 days |
| 2026 | 67 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
29 years with a frostAcross 29 years with a frost, the median last spring frost at Arcata Eureka AP falls on 2 April and the median first autumn frost on 22 November, which leaves a median of 236 days between them.
Fitted over all years, the growing season changes by +7.9 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1993 to 2024) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 2 April | n/a | 2 April | n/a | -4.8 days per decade |
| First autumn frost | 22 November | n/a | 22 November | n/a | +3.0 days per decade |
| Growing days | 236 days | n/a | 236 days | n/a | +7.9 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.
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).