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Weather on March 18

Garden Grove, CA

55 Years of Data

Avg High
73°F
Avg Low
51°F
Warmest
2026
80°F avg
Coldest
1982
52°F avg

About This Date

March 18th in Garden Grove, CA typically brings pleasant spring weather, with average highs around 73°F and lows near 51°F. Over 55 years of records, the warmest March 18th was in 2026 (80°F average), while the coldest was 1982 (52°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 13% of March 18th dates historically, with the wettest March 18th recording 2.03" of rain. The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.4°F warmer on this date compared to 20-30 years ago.

Planning for March 18th in Garden Grove, CA? Great weather for outdoor activities.

Warming Trend
0.7°F per decade on this date
YearHighLowAvgPrecipSnow
2026warmest95°64°80°
202570°47°58°
202476°51°63°0.23"
202377°50°64°
202280°53°67°
202170°48°59°
202063°46°54°
201979°55°67°
201865°46°55°
201777°55°66°
201675°58°66°
201572°62°67°
201474°56°65°
201364°56°60°
201261°43°52°0.71"
201172°49°60°
201086°55°71°
200987°52°69°
200873°43°58°
200767°54°60°
200661°43°52°
200566°55°61°0.08"
200473°55°64°
200374°45°59°
200268°41°55°0.3"
200180°49°64°
200080°48°64°
199966°48°57°
199875°59°67°
199783°50°66°
199673°56°64°
199573°60°67°
199476°56°66°
199372°57°64°
199267°51°59°
199170°50°60°
199078°46°62°
198973°47°60°
198885°48°66°
198767°49°58°
198674°45°59°
198566°46°56°0.33"
198481°49°65°
198363°49°56°1.65"
1982coldest59°44°52°2.03"
198172°51°61°
198073°51°62°
197964°47°55°
197888°64°76°
197767°43°55°
197674°52°63°
197571°44°58°
197470°57°63°
197370°43°56°
197175°46°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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