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Weather on May 12

San Bernardino, CA

55 Years of Data

Avg High
84°F
Avg Low
53°F
Warmest
2013
83°F avg
Coldest
1998
51°F avg

About This Date

May 12th in San Bernardino, CA typically brings warm spring weather, with average highs around 84°F and lows near 53°F — a 31°F daily swing. Over 49 years of records, the warmest May 12th was in 2013 (83°F average), while the coldest was 1998 (51°F) — a 32°F range across recorded history. Rain or other precipitation has occurred on about 6% of May 12th dates historically, with the wettest May 12th recording 1.68" of rain.

Planning for May 12th in San Bernardino, CA? Stay hydrated and seek shade during peak afternoon hours.

Warming Trend
0.4°F per decade on this date
YearHighLowAvgPrecipSnow
202693°61°77°
202590°59°74°
201776°52°64°
201692°58°75°
201577°53°65°
201487°53°70°
2013warmest104°63°83°
201288°54°71°
201189°50°70°
201079°42°60°
200984°56°70°
200866°50°58°
200784°48°66°
200684°55°70°
200587°49°68°
200481°56°68°
200387°49°68°
200295°50°73°
200187°59°73°
200084°48°66°
199988°54°71°
1998coldest56°46°51°1.68"
199789°61°75°
1996102°55°79°
199564°45°54°
199472°58°65°0.05"
199377°57°67°
199280°61°70°
199178°46°62°
199075°51°63°
198967°52°59°
198896°60°78°
198792°60°76°
198676°49°62°
198573°53°63°
198497°57°77°
198381°46°63°
198275°45°60°
198182°59°71°
198066°44°55°
197995°51°73°
1978100°53°77°
197766°50°58°0.41"
1976102°60°81°
197598°56°77°
197477°56°66°
197377°56°66°
197297°52°74°
197180°55°68°
49 years of data from NORTON AFB

San Bernardino, CA Temperature Range by Month

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

30°50°70°90°110°JFMAMJJASOND
Avg high Avg low

San Bernardino, CA Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"5.8"11.6"JFMAMJJASOND0.1"0"
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.

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

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
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.

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