September
September · August · July
United States · 1991–2020
September leads for comfortable weather in Oxnard: typically 22.7°C by day, 14.9°C at night, with 2 mm of rain. Based on measured 1991–2020 NOAA station history.
September · August · July
August · July · September
November · April · May
The weakest month is February, scoring 62 against September’s 96 — days reach only 18°C, 6° below the 24°C the score treats as ideal, and nights drop to 8.2°C.
Month by month
The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.
| Month | Day | Night | Rain | Wet days | Sea | Daylight | Comfort | Coverage |
|---|---|---|---|---|---|---|---|---|
| January | 18.7°C | 8.1°C | 59 mm | 4.3 | 14.6°C | 10 h 06 | 66 | Good coverage |
| February | 18°C | 8.2°C | 63 mm | 5.1 | 14.5°C | 10 h 54 | 62 | Good coverage |
| March | 18.2°C | 9.2°C | 39 mm | 3.7 | 14.4°C | 11 h 52 | 69 | Good coverage |
| April | 18.7°C | 10°C | 21 mm | 2 | 14.4°C | 12 h 59 | 74 | Good coverage |
| May | 19.5°C | 12°C | 8 mm | 1.2 | 15.5°C | 13 h 55 | 80 | Good coverage |
| June | 20.7°C | 14.2°C | 1 mm | 0.2 | 17.2°C | 14 h 25 | 88 | Good coverage |
| July | 22.4°C | 15.7°C | 1 mm | 0.1 | 18.8°C | 14 h 14 | 93 | Good coverage |
| August | 22.6°C | 15.6°C | 0 mm | 0 | 19.4°C | 13 h 26 | 94 | Good coverage |
| September | 22.7°C | 14.9°C | 2 mm | 0.2 | 19.3°C | 12 h 21 | 96 | Good coverage |
| October | 22.4°C | 12.7°C | 13 mm | 1.3 | 18.5°C | 11 h 16 | 91 | Good coverage |
| November | 20.6°C | 9.8°C | 19 mm | 2.4 | 16.9°C | 10 h 20 | 80 | Good coverage |
| December | 18.3°C | 7.8°C | 45 mm | 3.9 | 15.3°C | 9 h 53 | 66 | Good coverage |
| Month | Record high | Record low | Wettest day | Wettest / driest month | Years |
|---|---|---|---|---|---|
| January | 32.2°C31 Jan 2003 | -0.6°C30 Jan 2002 | 85 mm9 Jan 2005 | 237 mm2005 · driest 0 mm in 2003 | 28 |
| February | 32.8°C9 Feb 2016 | 1.7°C6 Feb 2019 | 83 mm17 Feb 2017 | 248 mm2024 · driest 0 mm in 2022 | 28 |
| March | 33.9°C11 Mar 2007 | 2.2°C12 Mar 2006 | 56 mm15 Mar 2003 | 178 mm2023 · driest 0 mm in 2008 | 29 |
| April | 32.2°C17 Apr 2016 | 2.8°C9 Apr 1999 | 66 mm4 Apr 2006 | 111 mm2006 · driest 0 mm in 2021 | 29 |
| May | 29.4°C2 May 2014 | 6.1°C11 May 2022 | 30 mm5 May 1998 | 73 mm1998 · driest 0 mm in 2018 | 29 |
| June | 27.8°C16 Jun 2006 | 9.4°C3 Jun 2002 | 4 mm9 Jun 2015 | 5 mm1999 · driest 0 mm in 2002 | 29 |
| July | 30.6°C7 Jul 2018 | 10.6°C12 Jul 2001 | 7 mm18 Jul 2015 | 8 mm2015 · driest 0 mm in 2024 | 29 |
| August | 31.7°C28 Aug 2015 | 11.1°C22 Aug 2002 | 21 mm20 Aug 2023 | 24 mm2023 · driest 0 mm in 2018 | 28 |
| September | 35.0°C4 Sep 2022 | 10.0°C7 Sep 2002 | 12 mm15 Sep 2015 | 18 mm2015 · driest 0 mm in 2014 | 28 |
| October | 40.0°C23 Oct 2017 | 6.7°C12 Oct 2008 | 26 mm5 Oct 2011 | 94 mm2004 · driest 0 mm in 2020 | 28 |
| November | 35.0°C6 Nov 2006 | 3.3°C12 Nov 2000 | 64 mm15 Nov 2025 | 159 mm2025 · driest 0 mm in 2000 | 28 |
| December | 30.6°C18 Dec 2024 | -1.1°C23 Dec 1998 | 123 mm21 Dec 2023 | 244 mm2010 · driest 0 mm in 2024 | 27 |
| Month | Days 25°C+ | Days 30°C+ | Heavy rain (10 mm+) |
|---|---|---|---|
| January | 3 | <1 | 2 |
| February | 2 | <1 | 2 |
| March | 2 | <1 | 1 |
| April | 2 | <1 | <1 |
| May | 1 | 0 | <1 |
| June | <1 | 0 | 0 |
| July | 3 | <1 | 0 |
| August | 4 | <1 | 0 |
| September | 6 | <1 | 0 |
| October | 7 | 2 | <1 |
| November | 5 | 1 | <1 |
| December | 2 | 0 | 1 |
| Month | Warm & dry days | Wet days | Washouts | Week with 3+ wet days | Daytime mean has ranged |
|---|---|---|---|---|---|
| January | 33% | 14% | 6% | 15% | 16.7–21.1°C |
| February | 26% | 18% | 7% | 21% | 16.6–20.4°C |
| March | 23% | 13% | 4% | 13% | 16.4–19.8°C |
| April | 25% | 6% | 2% | 3% | 17.3–20.8°C |
| May | 33% | 4% | <1% | 2% | 18.2–20.6°C |
| June | 75% | <1% | 0% | 0% | 19.8–21.3°C |
| July | 94% | <1% | 0% | 0% | 21.0–23.7°C |
| August | 96% | <1% | <1% | 0% | 21.1–24.0°C |
| September | 90% | 1% | <1% | <1% | 21.2–25.0°C |
| October | 73% | 4% | 1% | 2% | 20.3–24.9°C |
| November | 46% | 9% | 3% | 4% | 18.6–22.9°C |
| December | 27% | 14% | 5% | 14% | 16.4–20.1°C |
A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.
The evidence behind this page