How much rain fell in Costa Mesa, CA in the last 24 hours?

No measurable rain fell in Costa Mesa, CA over the last 24 hours (radar-measured, NOAA MRMS). The last measurable rain was on April 26, 2026.

How much rain has fallen in Costa Mesa, CA this year?

Costa Mesa, CA has recorded 3.97″ of rain year-to-date in 2026.

Costa Mesa, CA has received 0.00″ of rain in the past 30 days (radar-measured).

The last measurable rain in Costa Mesa, CA was on April 26, 2026.

Last Rain · 24 Hours · 72 Hours · 7 Days · 30 Days
This Month · This Year

How much rain did Costa Mesa, CA get?

Last RainApril 26, 2026	24 Hours	72 Hours	7 Days	30 Days	This Month	This Year
0.38″	0.00″	0.00″	0.00″	0.00″	0.00″	3.97″

Wettest month

4.25″

November 2025

Driest month

0.00″

March 2026

Longest dry streak

132 days

ended Sep 5

Most rain in 24 hours

1.61″

Nov 15

Month	Rain	Normal	% of normal	Rainy days
October 2025	0.83″	0.33″	—	2
November 2025	4.25″	0.64″	664%	7
December 2025	2.39″	1.62″	148%	5
January 2026	1.23″	2.20″	56%	6
February 2026	2.06″	2.38″	87%	5
March 2026	0.00″	1.34″	0%	0
April 2026	0.68″	0.55″	124%	6
May 2026	0.00″	0.18″	—	0
June 2026	0.00″	0.07″	—	0
July 2026	0.00″	0.02″	—	0
August 2026	0.00″	0.00″	—	0
September 2026	0.00″	0.10″	—	0

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