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Weather on May 21

Garden Grove, CA

55 Years of Data

Avg High
75°F
Avg Low
58°F
Warmest
1994
75°F avg
Coldest
1991
58°F avg

About This Date

May 21st in Garden Grove, CA typically brings pleasant spring weather, with average highs around 75°F and lows near 58°F. Over 55 years of records, the warmest May 21st was in 1994 (75°F average), while the coldest was 1991 (58°F) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 4% of May 21st dates historically. Temperatures on this date have remained relatively stable over the past several decades.

Temperatures on this date have remained relatively stable over the past several decades.

Planning for May 21st in Garden Grove, CA? Great weather for outdoor activities.

Warming Trend
0.7°F per decade on this date
YearHighLowAvgPrecipSnow
202679°61°70°
202587°62°75°
202473°56°64°
202375°60°68°
202269°61°65°
202173°56°64°
202083°58°70°
201967°56°61°
201865°58°61°0.05"
201786°63°74°
201670°57°63°
201572°60°66°
201474°58°66°
201378°62°70°
201281°61°71°
201176°56°66°
201076°56°66°
200980°59°70°
200876°61°68°
200767°57°62°
200675°60°68°
200588°59°73°
200472°58°65°
200385°55°70°
200268°50°59°
200175°60°68°
200080°57°69°
199968°56°62°
199872°56°64°
199778°65°71°
199677°59°68°
199569°56°62°
1994warmest78°72°75°
199376°60°68°
199274°60°67°
1991coldest67°49°58°
199075°57°66°
198979°54°66°
198884°62°73°
198771°55°63°
198673°60°67°
198574°58°66°
198474°58°66°
198382°59°71°
198268°61°64°
198172°53°62°
198072°55°63°0.13"
197973°61°67°
197875°59°67°
197775°56°65°
197568°51°60°
197481°52°66°
197371°58°64°
197270°49°59°
197169°53°61°
55 years of data from SANTA ANA FIRE STN

Garden Grove, CA Temperature Range by Month

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

40°50°60°70°80°90°100°JFMAMJJASOND
Avg high Avg low

Garden Grove, CA Monthly Precipitation

Average rainfall per month, in inches.

0"5.9"11.8"JFMAMJJASOND
Rain (in)

Garden Grove, 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 Garden Grove, CA

Garden Grove, 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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