What is the highest temperature ever recorded in San Bernardino, CA?

The record high temperature in San Bernardino, CA is 118°F, recorded on July 6, 2018.

What is the lowest temperature ever recorded in San Bernardino, CA?

The record low temperature in San Bernardino, CA is 19°F, recorded on January 14, 2007.

Historical Weather in San Bernardino, CA

Name: San Bernardino, CA Temperature Records
Creator: NOAA

See 55+ years of weather history for any date in San Bernardino going back to 1970.

Part of California weather history · California temperature records

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Today in San Bernardino Weather HistorySee records, averages, and 55+ years of data for today's date

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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°

💧 10.8"

Feb

68°/ 43°

💧 11.6"

Mar

71°/ 45°

💧 9.4"

Apr

75°/ 48°

💧 5.4"

May

81°/ 53°

💧 4.0"

Jun

89°/ 57°

💧 2.5"

Jul

95°/ 62°

💧 2.4"

Aug

96°/ 63°

💧 6.2"

Sep

91°/ 60°

💧 5.8"

Oct

82°/ 53°

💧 5.5"

Nov

73°/ 45°

💧 7.9"

Dec

67°/ 41°

💧 9.0"

❄️ 0.1"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

San Bernardino, CA Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

Avg high Avg low

San Bernardino, CA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

Rain (in) Snow (in)

San Bernardino, CA Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

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Best Time to Visit San Bernardino, CA

San Bernardino, CA has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

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Nov

Dec

Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

San Bernardino Temperature Records

Record High: The hottest temperature ever recorded in San Bernardino, CA is 118°F, set on July 6, 2018.
Record Low: The coldest temperature ever recorded in San Bernardino, CA is 19°F, set on January 14, 2007.
Data Coverage: Based on 57 years of data from NOAA weather station: MARCH AFB.

All-Time Record High

118°F

July 6, 2018

All-Time Record Low

19°F

January 14, 2007

Monthly Temperature Records in San Bernardino

Month	Record High	Record Low
January	101°F(2003)	19°F(2007)
February	92°F(2016)	19°F(2020)
March	97°F(2011)	27°F(2012)
April	102°F(2004)	27°F(1970)
May	106°F(2003)	33°F(2002)
June	114°F(2016)	40°F(2011)
July	118°F(2018)	42°F(2010)
August	112°F(2017)	46°F(2010)
September	118°F(2020)	41°F(2007)
October	109°F(2024)	34°F(2019)
November	100°F(2010)	26°F(2012)
December	90°F(2005)	22°F(2011)