NOAA GHCND · LIVE

Weather on May 12

San Leandro, CA

55 Years of Data

Avg High
70°F
Avg Low
50°F
Warmest
2008
131°F avg
Coldest
1998
49°F avg

About This Date

May 12th in San Leandro, CA typically brings pleasant spring weather, with average highs around 70°F and lows near 50°F. Over 53 years of records, the warmest May 12th was in 2008 (131°F average), while the coldest was 1998 (49°F) — a 82°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 12th dates historically, with the wettest May 12th recording 0.56" of rain. The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.

The last decade has been 2.5°F cooler on this date compared to 20-30 years ago.

Planning for May 12th in San Leandro, CA? Great weather for outdoor activities.

YearHighLowAvgPrecipSnow
202665°49°57°
202560°48°54°
202470°49°59°
202369°47°58°
202261°42°51°
202173°47°60°
202060°50°55°
201964°48°56°
201871°49°60°
201761°45°53°
201663°48°55°
201561°44°52°
201484°56°70°
201375°51°63°
201276°52°64°
201165°44°54°
201066°47°56°
200966°50°58°
2008warmest138°124°131°
200767°41°54°
200669°52°60°
200570°50°60°
200472°47°59°
200374°46°60°
200278°47°62°
200161°50°55°
200066°44°55°
199961°45°53°
1998coldest54°45°49°
199778°50°64°
199684°56°70°
199562°52°57°
199468°51°60°
199361°45°53°
198966°47°56°
198884°50°67°
198778°53°66°
198670°45°57°
198565°44°54°
198475°57°66°
198373°48°61°
198265°46°55°
198183°51°67°
198057°50°54°0.03"
197980°50°65°
197868°46°57°
197759°48°54°0.56"
197682°46°64°
197571°48°60°
197474°45°59°
197367°51°59°
197282°48°65°
197160°48°54°
53 years of data from UPPER SAN LEANDRO FILTERS

San Leandro, CA Temperature Range by Month

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

30°40°50°60°70°80°90°JFMAMJJASOND
Avg high Avg low

San Leandro, CA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"4.6"9.2"JFMAMJJASOND4.5"0"
Rain (in) Snow (in)

San Leandro, 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.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit San Leandro, CA

Most pleasant months in San Leandro, CA: August.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery