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San Jose, CA Weather on May 27

May 27th in San Jose, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 54°F. Over 55 years of records, the warmest May 27th was in 2020 (78°F average), while the coldest was 1971 (56°F) — a 22°F range across recorded history. Rain or other precipitation has occurred on about 9% of May 27th dates historically, with the wettest May 27th recording 4.11" of rain. Temperatures on this date have remained relatively stable over the past several decades.

By Weather On This Day|
Avg High
75°F
Avg Low
54°F
Record High
101°F
1984
Record Low
46°F
1977
San Jose, CA on May 27 — Temperature History40°F60°F80°F100°F120°F19801990200020102020HighLow

What to Expect on May 27

Planning for May 27th in San Jose, CA? Great weather for outdoor activities.

May 27 Weather Records for San Jose

  • The all-time record high for May 27th in San Jose, CA is 101°F, set in 1984.
  • The coldest May 27th on record dropped to 46°F in 1977.
  • Temperatures have reached 90°F or higher on May 27th in 3 of the last 55 years.
  • Last year (1971), May 27th was 11°F cooler than the long-term average.

Frequently Asked Questions

What was the warmest May 27 ever in San Jose?

The warmest May 27 in San Jose, CA reached 101°F in 1984. That is 26°F above the long-term average high of 75°F.

What was the coldest May 27 ever in San Jose?

The coldest May 27 in San Jose, CA dropped to 46°F in 1977. That is 8°F below the long-term average low of 54°F.

What is the average temperature on May 27 in San Jose?

On May 27, San Jose averages a high of 75°F and a low of 54°F based on 55 years of NOAA weather observations from SAN JOSE.

How many years of weather data are available for May 27 in San Jose?

We have 55 years of weather records for May 27 in San Jose, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

May 27 Weather History in San Jose

YearHighLowPrecipSnow
202578°F51°F0"--
202475°F53°F0"--
202374°F57°F0"--
202274°F56°F0"--
202172°F50°F0"--
202094°F62°F0"--
201966°F51°F0"--
201882°F53°F0"--
201771°F55°F0"--
201680°F53°F0"--
201572°F57°F0"--
201474°F52°F0"--
201367°F53°F0"--
201267°F53°F0"--
201169°F51°F0"--
201066°F50°F0.1"--
200981°F57°F0"--
200868°F50°F0"--
200772°F55°F0"--
200665°F52°F0"--
200572°F57°F0"--
200478°F58°F0"--
200388°F55°F0"--
200273°F55°F0"--
200168°F53°F0"--
200077°F58°F0"--
199966°F52°F0"--
199869°F50°F0.15"--
199784°F64°F0"--
199677°F55°F0"--
199568°F53°F0"--
199477°F51°F0"--
199371°F58°F0.08"--
199283°F57°F0"--
199179°F49°F0"--
199065°F58°F4.11"--
198971°F52°F0"--
198876°F56°F0"--
198769°F54°F0"--
198673°F56°F0"--
198567°F56°F0"--
1984101°F54°F0"--
198377°F56°F0"--
198273°F55°F0"--
198180°F55°F0"--
198069°F47°F0"--
197973°F52°F0"--
197882°F53°F0"--
197770°F46°F0"--
197689°F52°F0"--
197588°F53°F0"--
197493°F57°F0"--
197381°F51°F0"--
197273°F52°F0"--
197164°F48°F0.05"--

Based on 55 years of data from NOAA station: SAN JOSE

Monthly Climate Averages

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

Warmest MonthAugustAvg High: 82°F / Low: 58°F
Coldest MonthDecemberAvg High: 59°F / Low: 42°F
Jan
59°/ 42°
💧 7.1"
Feb
63°/ 44°
💧 7.1"
❄️ 0.5"
Mar
66°/ 46°
💧 6.2"
Apr
70°/ 48°
💧 28.8"
May
75°/ 52°
💧 3.5"
Jun
79°/ 56°
💧 2.9"
Jul
82°/ 58°
💧 3.0"
Aug
82°/ 58°
💧 3.3"
Sep
81°/ 57°
💧 3.8"
Oct
75°/ 52°
💧 6.1"
Nov
65°/ 46°
💧 5.9"
Dec
59°/ 42°
💧 6.3"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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