Oxnard, CA

California · Records since 1923–2026

☀️ 82°F Feels like 90°
Currently in Oxnard
As of 11:30 AM PDT

Records for September 11

🔥 Record High

91°F

September 11, 2015

+12° from 79° normal

❄ Record Low

43°F

September 11, 1933

-16° from 59° normal
🌞 Normal high: 79°F 🌑 Normal low: 59°F 1991–2020 normals

All-Time Records — Oxnard

🔥
105°F
Hottest Day Ever
Sep 26, 2016
❄
26°F
Coldest Day Ever
Jan 22, 1937
🌧
5.96"
Wettest Day Ever
Jan 26, 1956
☃
0.0"
Most Snow in One Day
Feb 28, 2011

First & Last Dates — Oxnard

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)

Top 10 Record Highs — September 11

# Temp Date
🏆 91°F September 11, 2015
2 86°F September 11, 2017
3 86°F September 11, 1959
4 85°F September 11, 2022
5 85°F September 11, 1967
6 85°F September 11, 1960
7 84°F September 11, 2023
8 84°F September 11, 2004
9 84°F September 11, 1979
10 84°F September 11, 1963

Top 5 Record Lows — September 11

# Temp Date
🥶 43°F September 11, 1933
2 45°F September 11, 1946
3 45°F September 11, 1931
4 45°F September 11, 1928
5 46°F September 11, 1952
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1923–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Oxnard

threshold: 79°F (90th percentile of historical Jun–Aug highs)
4.6
Avg heat wave length
days (historical)
88°
Avg peak temp
during heat waves
2
Dangerous nights 2026
Overnights ≥ 70°F
10
Heat waves 2026
so far

Days ≥ 90°F Per Year

1923–2026
4
2026 so far
4
Avg/year 1970–2025
8
Avg/year (last 10 complete)
18
Most in a year (1939)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Oxnard

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 19, 2018 – Aug 25, 2018 38 89°F (Aug 7) 83°F 64°F
2 Aug 21, 2019 – Sep 18, 2019 29 91°F (Sep 14) 82°F 61°F
3 Sep 17, 2015 – Oct 3, 2015 17 89°F (Sep 20) 83°F 62°F
4 Jul 30, 1971 – Aug 13, 1971 15 90°F (Aug 10) 85°F 62°F
5 Sep 18, 2016 – Oct 1, 2016 14 105°F (Sep 26) 86°F 61°F
6 Aug 31, 2022 – Sep 13, 2022 14 101°F (Sep 4) 88°F 68°F
7 Aug 17, 2026 – Aug 30, 2026 14 94°F (Aug 27) 85°F 65°F
8 Aug 13, 2020 – Aug 26, 2020 14 92°F (Aug 19) 86°F 66°F
9 Jun 22, 1931 – Jul 5, 1931 14 91°F (Jun 25) 82°F 49°F
10 Aug 6, 1983 – Aug 18, 1983 13 97°F (Aug 7) 84°F 65°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

74
2026 total
above-normal nights
38.4
Avg / summer
1970–2020
74
Most in a summer
1993

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1923–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1923, annual totals have trended +0.19" per decade, about +1.9" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Oxnard is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

109 of 245 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

6.56"
2026 YTD
Normal: 10.73"
-4.17"
0.00"
September so far
September normal: 0.09"
-0.09"
3
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Oxnard is 4.17" behind the normal pace

Period Review — Jun 12 – Sep 10, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
70.2°F
Average temperature
2nd-warmest of 98
+3.0°
vs. average
Normal: 67.3°F (1991–2020)

Average Temperature by Year — Jun 12 – Sep 10

1923–2026 · 2026 highlighted · trend +0.53° per decade (warming since 1923)

Precipitation by Year — Jun 12 – Sep 10

1926–2025 · 2026 highlighted · trend +0.01" per decade (wetter since 1926)

Warmest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 2018 71.0°F
2 2026 70.2°F
3 1984 69.7°F
4 2017 69.7°F
5 2015 69.4°F
6 1981 69.3°F
7 1998 69.2°F
8 1976 69.1°F
9 2022 68.9°F
10 2021 68.8°F

Coolest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1924 60.1°F
2 1933 61.1°F
3 1928 62.2°F
4 1947 62.3°F
5 1932 62.5°F
6 1923 62.7°F
7 1943 62.7°F
8 1940 62.8°F
9 1926 62.9°F
10 1952 63.1°F
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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