Diamond Bar, CA 21 May Weather

Altitude - 220m | 34°1′44″N,117°48′36″W | map (OSM)

Diamond Bar, CA

°F

2 amClear2mphSE

Sun, May 11, 20252:30 AM (GMT -07:00)

Climatic norm in Diamond Bar, CA May 21

57°
68°
80°

minimum
average
maximum

Wednesday May 21 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	65°	63°	63°	70°	78°	81°	78°	69°
wind	2mph	2mph	2mph	2mph	5mph	8mph	8mph	5mph
pressure in	29.16	29.14	29.13	29.15	29.15	29.12	29.12	29.13

Tuesday May 21 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	57°	57°	57°	60°	65°	69°	68°	62°
wind	3mph	3mph	2mph	3mph	6mph	8mph	7mph	4mph
pressure in	29.18	29.17	29.17	29.18	29.17	29.13	29.12	29.15

Sunday May 21 2023	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	62°	61°	61°	63°	72°	76°	73°	64°
wind	2mph	1mph	1mph	2mph	5mph	8mph	8mph	5mph
pressure in	29.28	29.25	29.24	29.24	29.23	29.18	29.16	29.20

Saturday May 21 2022	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	61°	60°	60°	61°	66°	70°	68°	62°
wind	4mph	3mph	3mph	4mph	5mph	8mph	9mph	5mph
pressure in	29.08	29.08	29.10	29.15	29.17	29.16	29.16	29.22

Friday May 21 2021	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	58°	56°	56°	61°	68°	70°	68°	60°
wind	5mph	4mph	4mph	5mph	14mph	17mph	16mph	10mph
pressure in	29.08	29.09	29.13	29.17	29.18	29.17	29.15	29.23

Thursday May 21 2020	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	62°	59°	59°	68°	78°	82°	80°	70°
wind	3mph	2mph	2mph	1mph	6mph	11mph	11mph	5mph
pressure in	29.20	29.17	29.17	29.19	29.17	29.11	29.08	29.10

Tuesday May 21 2019	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	58°	56°	56°	58°	63°	64°	62°	60°
wind	7mph	7mph	6mph	7mph	11mph	15mph	12mph	7mph
pressure in	29.17	29.14	29.14	29.13	29.11	29.06	29.01	28.99

Monday May 21 2018	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	60°	60°	59°	60°	64°	66°	65°	60°
wind	4mph	4mph	4mph	5mph	6mph	7mph	7mph	4mph
pressure in	29.09	29.06	29.06	29.08	29.10	29.07	29.05	29.08

* Diamond Bar, CA weather for May 21 is prepared on the basis of GFS data and is intended for personal use in the "as is" (as is) format. You can see on this page Diamond Bar, CA Weather for May 21, as well as compare air temperature with the climate norm for this date. Perhaps you will be interested - for comparison, the actual weather on May 21 for previous years is presented.