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San Mateo, CA Weather on April 11

April 11th in San Mateo, CA typically brings mild spring weather, with average highs around 64°F and lows near 49°F. Over 55 years of records, the warmest April 11th was in 1988 (68°F average), while the coldest was 1976 (49°F) — a 19°F range across recorded history. Rain or other precipitation has occurred on about 20% of April 11th dates historically, with the wettest April 11th recording 2.34" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.

By Weather On This Day|
Avg High
64°F
Avg Low
49°F
Record High
84°F
1988
Record Low
36°F
1976
San Mateo, CA on April 11 — Temperature History20°F40°F60°F80°F100°F19801990200020102020HighLow

What to Expect on April 11

Planning for April 11th in San Mateo, CA? Great weather for outdoor activities.

April 11 Weather Records for San Mateo

  • The all-time record high for April 11th in San Mateo, CA is 84°F, set in 1988.
  • The coldest April 11th on record dropped to 36°F in 1976.

Frequently Asked Questions

What was the warmest April 11 ever in San Mateo?

The warmest April 11 in San Mateo, CA reached 84°F in 1988. That is 20°F above the long-term average high of 64°F.

What was the coldest April 11 ever in San Mateo?

The coldest April 11 in San Mateo, CA dropped to 36°F in 1976. That is 13°F below the long-term average low of 49°F.

What is the average temperature on April 11 in San Mateo?

On April 11, San Mateo averages a high of 64°F and a low of 49°F based on 55 years of NOAA weather observations from BURLINGAME.

How many years of weather data are available for April 11 in San Mateo?

We have 55 years of weather records for April 11 in San Mateo, CA, sourced from NOAA's Global Historical Climatology Network. Records include daily high and low temperatures, precipitation, and snowfall data going back to 2025.

April 11 Weather History in San Mateo

YearHighLowPrecipSnow
202564°F51°F0"--
202471°F51°F0"--
202362°F50°F0"--
202257°F47°F0.3"--
202168°F48°F0"--
202062°F52°F0"--
201959°F50°F0"--
201865°F51°F0.56"--
201767°F53°F0.13"--
201664°F54°F0"--
201569°F51°F0"--
201464°F53°F0"--
201365°F49°F0"--
201259°F49°F0.08"--
201162°F49°F0"--
201056°F49°F2.34"--
200960°F47°F0"--
200881°F47°F0"--
200760°F50°F0.28"--
200657°F51°F1.45"--
200561°F49°F0"--
200461°F49°F0"--
200363°F47°F0"--
200265°F53°F0"--
200158°F47°F0"--
200070°F49°F0"--
199956°F47°F1.98"--
199858°F50°F0"--
199767°F46°F0"--
199660°F49°F0"--
199563°F50°F0"--
199475°F45°F0"--
199363°F45°F0"--
199266°F55°F0.36"--
199166°F49°F0"--
199068°F51°F0"--
198971°F48°F0"--
198884°F52°F0"--
198764°F50°F0"--
198666°F46°F0"--
198567°F51°F0"--
198463°F44°F0"--
198355°F46°F0"--
198262°F53°F0.81"--
198160°F43°F0"--
198077°F47°F0"--
197960°F51°F0"--
197874°F59°F0"--
197766°F41°F0"--
197663°F36°F0"--
197563°F38°F0"--
197467°F44°F0"--
197371°F48°F0"--
197259°F48°F1.04"--
197162°F42°F0"--

Based on 55 years of data from NOAA station: BURLINGAME

Monthly Climate Averages

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

Warmest MonthSeptemberAvg High: 75°F / Low: 55°F
Coldest MonthDecemberAvg High: 57°F / Low: 44°F
Jan
57°/ 43°
💧 9.9"
Feb
60°/ 45°
💧 8.9"
Mar
62°/ 47°
💧 7.4"
Apr
65°/ 48°
💧 5.4"
May
68°/ 51°
💧 3.1"
Jun
71°/ 53°
💧 3.0"
Jul
73°/ 55°
💧 2.9"
Aug
73°/ 56°
💧 3.0"
Sep
75°/ 55°
💧 2.9"
Oct
71°/ 53°
💧 7.9"
Nov
63°/ 48°
💧 8.6"
Dec
57°/ 44°
💧 9.4"

Temperatures in Fahrenheit. Precipitation and snowfall in inches.