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Vacaville, CA Weather on May 27

May 27th in Vacaville, CA typically brings warm spring weather, with average highs around 83°F and lows near 53°F — a 30°F daily swing. Over 55 years of records, the warmest May 27th was in 2020 (83°F average), while the coldest was 1998 (53°F) — a 30°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 2.41" of rain. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.

By Weather On This Day|
Avg High
83°F
Avg Low
53°F
Record High
104°F
2020
Record Low
41°F
1977
Vacaville, CA on May 27 — Temperature History40°F60°F80°F100°F120°F19801990200020102020HighLow

What to Expect on May 27

Planning for May 27th in Vacaville, CA? Stay hydrated and seek shade during peak afternoon hours.

May 27 Weather Records for Vacaville

  • The all-time record high for May 27th in Vacaville, CA is 104°F, set in 2020.
  • The coldest May 27th on record dropped to 41°F in 1977.
  • Temperatures have reached 90°F or higher on May 27th in 17 of the last 55 years.
  • Last year (1971), May 27th was 13°F cooler than the long-term average.

Frequently Asked Questions

What was the warmest May 27 ever in Vacaville?

The warmest May 27 in Vacaville, CA reached 104°F in 2020. That is 21°F above the long-term average high of 83°F.

What was the coldest May 27 ever in Vacaville?

The coldest May 27 in Vacaville, CA dropped to 41°F in 1977. That is 12°F below the long-term average low of 53°F.

What is the average temperature on May 27 in Vacaville?

On May 27, Vacaville averages a high of 83°F and a low of 53°F based on 55 years of NOAA weather observations from VACAVILLE/NUT TREE AP ASOS.

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

We have 55 years of weather records for May 27 in Vacaville, 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 Vacaville

YearHighLowPrecipSnow
202589°F51°F0"--
202486°F54°F0"--
202379°F53°F0"--
202284°F52°F0"--
202188°F52°F0"--
2020104°F62°F0"--
201973°F52°F0"--
201891°F49°F0"--
201780°F54°F0"--
201690°F54°F0"--
201582°F53°F0"--
201487°F56°F0"--
201368°F53°F0.05"--
201276°F49°F0"--
201172°F52°F0"--
201063°F48°F0.84"--
200996°F64°F0"--
200874°F48°F0"--
200779°F54°F0"--
200670°F49°F0"--
200588°F56°F0"--
200483°F58°F0"--
200394°F54°F0"--
200279°F54°F0"--
200178°F53°F0"--
200089°F57°F0"--
199985°F53°F0"--
199857°F48°F0.66"--
199791°F52°F0"--
199682°F52°F0"--
199584°F56°F0"--
199481°F48°F0"--
199374°F55°F0.1"--
199295°F56°F0"--
199185°F49°F0"--
199068°F50°F2.41"--
198984°F55°F0"--
198876°F53°F0"--
198775°F50°F0"--
198689°F58°F0"--
198573°F50°F0"--
198498°F59°F0"--
198390°F52°F0"--
198276°F50°F0"--
198194°F54°F0"--
198073°F49°F0"--
197990°F54°F0"--
197892°F48°F0"--
197776°F41°F0"--
197695°F55°F0"--
197591°F53°F0"--
197499°F58°F0"--
197391°F46°F0"--
197292°F48°F0"--
197170°F49°F0"--

Based on 55 years of data from NOAA station: VACAVILLE/NUT TREE AP ASOS

Monthly Climate Averages

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

Warmest MonthJulyAvg High: 95°F / Low: 59°F
Coldest MonthDecemberAvg High: 56°F / Low: 38°F
Jan
57°/ 38°
💧 11.5"
❄️ 2.0"
Feb
62°/ 40°
💧 12.7"
❄️ 0.8"
Mar
67°/ 43°
💧 9.5"
Apr
73°/ 46°
💧 6.4"
May
81°/ 51°
💧 5.7"
Jun
89°/ 56°
💧 3.5"
Jul
95°/ 59°
💧 9.5"
Aug
94°/ 58°
💧 3.9"
Sep
90°/ 55°
💧 4.8"
Oct
79°/ 50°
💧 8.3"
Nov
65°/ 43°
💧 10.1"
Dec
56°/ 38°
💧 11.8"
❄️ 0.7"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.

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