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San Bernardino, CA Weather on October 9

October 9th in San Bernardino, CA typically brings warm fall weather, with average highs around 84°F and lows near 56°F — a 28°F daily swing. Over 48 years of records, the warmest October 9th was in 2015 (85°F average), while the coldest was 2013 (58°F) — a 27°F range across recorded history. Rain or other precipitation has occurred on about 2% of October 9th dates historically.

By Weather On This Day|
Avg High
84°F
Avg Low
56°F
Record High
103°F
1971
Record Low
47°F
2007
San Bernardino, CA on October 9 — Temperature History40°F60°F80°F100°F120°F19801990200020102020HighLow

What to Expect on October 9

Planning for October 9th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.

October 9 Weather Records for San Bernardino

  • •The all-time record high for October 9th in San Bernardino, CA is 103°F, set in 1971.
  • •The coldest October 9th on record dropped to 47°F in 2007.
  • •Temperatures have reached 90°F or higher on October 9th in 14 of the last 48 years.
  • •Last year (1971), October 9th was 19°F warmer than the long-term average.

Frequently Asked Questions

What was the warmest October 9 ever in San Bernardino?

The warmest October 9 in San Bernardino, CA reached 103°F in 1971. That is 19°F above the long-term average high of 84°F.

What was the coldest October 9 ever in San Bernardino?

The coldest October 9 in San Bernardino, CA dropped to 47°F in 2007. That is 9°F below the long-term average low of 56°F.

What is the average temperature on October 9 in San Bernardino?

On October 9, San Bernardino averages a high of 84°F and a low of 56°F based on 48 years of NOAA weather observations from NORTON AFB.

How many years of weather data are available for October 9 in San Bernardino?

We have 48 years of weather records for October 9 in San Bernardino, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

October 9 Weather History in San Bernardino

YearHighLowPrecipSnow
202581°F59°F----
201775°F63°F----
201691°F66°F----
201596°F73°F----
201482°F58°F0"--
201361°F56°F0.23"--
201278°F59°F0"--
201184°F51°F0"--
201093°F52°F0"--
200978°F48°F0"--
200887°F57°F0"--
200787°F47°F0"--
200675°F54°F0"--
200580°F52°F0"--
200487°F55°F0"--
200390°F52°F0"--
200292°F57°F0"--
200178°F53°F0"--
200077°F55°F0"--
1999100°F58°F0"--
199883°F51°F0"--
199780°F52°F0"--
199696°F62°F0"--
199583°F57°F0"--
199492°F51°F0"--
199376°F57°F0"--
199289°F56°F0"--
199198°F62°F0"--
199089°F48°F0"--
198987°F53°F0"--
198895°F61°F0"--
198778°F59°F0"--
198681°F57°F0"--
198570°F53°F0"--
198486°F55°F0"--
198378°F63°F0"--
198282°F55°F0"--
198178°F59°F0"--
198091°F57°F0"--
197985°F59°F0"--
197894°F58°F0"--
197784°F57°F0"--
197699°F54°F0"--
197578°F48°F0"--
197477°F51°F0"--
197374°F50°F0"--
197269°F57°F0"--
1971103°F56°F0"--

Based on 48 years of data from NOAA station: NORTON AFB

Monthly Climate Averages

Historical temperature and precipitation averages for San Bernardino, CA, based on 55+ years of weather data.

Warmest MonthAugustAvg High: 96°F / Low: 63°F
Coldest MonthDecemberAvg High: 67°F / Low: 41°F
Jan
67°/ 41°
💧 0.4"
Feb
68°/ 43°
💧 0.5"
Mar
71°/ 45°
💧 0.4"
Apr
75°/ 48°
💧 0.2"
May
81°/ 53°
💧 0.2"
Jun
89°/ 57°
💧 0.1"
Jul
95°/ 62°
💧 0.1"
Aug
96°/ 63°
💧 0.3"
Sep
91°/ 60°
💧 0.2"
Oct
82°/ 53°
💧 0.2"
Nov
73°/ 45°
💧 0.3"
Dec
67°/ 41°
💧 0.3"
❄️ 0.1"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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