Escondido, CA

California · Records since 1893–2026

☀️ 90°F Feels like 97°
Currently in Escondido
As of 11:30 AM PDT

Records for September 11

🔥 Record High

105°F

September 11, 1979

+17° from 88° normal

❄ Record Low

42°F

September 11, 2006

-22° from 64° normal
🌞 Normal high: 88°F 🌑 Normal low: 64°F 1991–2020 normals

All-Time Records — Escondido

🔥
115°F
Hottest Day Ever
Sep 6, 2020
❄
13°F
Coldest Day Ever
Jan 7, 1913
🌧
6.47"
Wettest Day Ever
Feb 16, 1927
☃
1.0"
Most Snow in One Day
Feb 11, 1895

First & Last Dates — Escondido

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)
355 days
Longest growing season
1976
159 days
Shortest growing season
1908

Top 10 Record Highs — September 11

# Temp Date
🏆 105°F September 11, 1979
2 105°F September 11, 1918
3 103°F September 11, 1971
4 102°F September 11, 1983
5 101°F September 11, 1990
6 101°F September 11, 1963
7 100°F September 11, 1960
8 100°F September 11, 1955
9 100°F September 11, 1937
10 100°F September 11, 1913

Top 5 Record Lows — September 11

# Temp Date
🥶 42°F September 11, 2006
2 42°F September 11, 1907
3 43°F September 11, 1901
4 44°F September 11, 1900
5 45°F September 11, 1941
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 1893–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Escondido

threshold: 95°F (90th percentile of historical Jun–Aug highs)
4.3
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
24
Dangerous nights 2026
Overnights ≥ 70°F
5
Heat waves 2026
so far

Days ≥ 90°F Per Year

1894–2026
71
2026 so far
46
Avg/year 1970–2025
67
Avg/year (last 10 complete)
92
Most in a year (1939)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Escondido

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 18, 1903 – Jul 6, 1903 19 102°F (Jul 2) 98°F 51°F
2 Sep 8, 1979 – Sep 20, 1979 13 105°F (Sep 11) 100°F 65°F
3 Jul 29, 2018 – Aug 10, 2018 13 102°F (Aug 6) 98°F 71°F
4 Aug 19, 2026 – Aug 30, 2026 12 105°F (Aug 26) 101°F 72°F
5 Aug 27, 1995 – Sep 7, 1995 12 102°F (Sep 2) 98°F 67°F
6 Jun 10, 1896 – Jun 20, 1896 11 109°F (Jun 13) 100°F 54°F
7 Aug 13, 2020 – Aug 22, 2020 10 107°F (Aug 18) 99°F 73°F
8 Jul 9, 1896 – Jul 18, 1896 10 105°F (Jul 13) 98°F 61°F
9 Sep 9, 1937 – Sep 18, 1937 10 104°F (Sep 16) 99°F 61°F
10 Jul 5, 1906 – Jul 14, 1906 10 100°F (Jul 14) 97°F 57°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

76
2026 total
above-normal nights
20.7
Avg / summer
1970–2020
66
Most in a summer
2018

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 (1893–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1893, annual totals have trended -0.12" per decade, about -1.6" 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 Escondido is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

189 of 243 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

6.25"
2026 YTD
Normal: 10.61"
-4.36"
0.00"
September so far
September normal: 0.16"
-0.16"
2
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Escondido is 4.36" 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)
79.6°F
Average temperature
1st-warmest of 123
+4.2°
vs. average
Normal: 75.4°F (1991–2020)

Average Temperature by Year — Jun 12 – Sep 10

1895–2026 · 2026 highlighted · trend +0.41° per decade (warming since 1895)

Precipitation by Year — Jun 12 – Sep 10

1899–2025 · 2026 highlighted · trend +0.02" per decade (wetter since 1899)

Warmest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 2026 79.6°F
2 2024 79.0°F
3 2022 78.5°F
4 2018 78.5°F
5 2017 77.9°F
6 2020 77.3°F
7 1984 77.3°F
8 2016 76.9°F
9 2015 76.8°F
10 2021 76.8°F

Coolest Jun 12 – Sep 10 on Record

# Year Avg Temp
1 1900 68.2°F
2 1899 68.4°F
3 1950 68.6°F
4 1904 69.1°F
5 1905 69.5°F
6 1948 69.6°F
7 1907 69.7°F
8 1944 69.8°F
9 1975 70.5°F
10 1912 70.5°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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