SAN DIEGO 2018 RECAP: RAINFALL & TEMPERATURES

2018 was warmer than normal with below average rainfall (2.69" below normal). The totals for the year were very similar to 2017, which was also a warm and dry year. Summer of 2018 was brutally hot, where the average temperature was 5.1 above normal in July and 6.5 above normal in August. May was the only month where temperatures were slightly below average.

	Average Temperature	Departure From Normal	Total Rainfall	Departure From Normal
Jan	61.5	4.4	1.78	-0.2
Feb	59.4	1.5	0.36	-1.91
Mar	60.8	1.4	0.95	-0.86
Apr	63.5	1.8	0.02	-0.76
May	63.6	-0.5	0.12	0
Jun	67.5	1	0	-0.07
Jul	75.2	5.1	0	-0.03
Aug	78.1	6.5	0.02	0
Sep	71.9	1.3	0	-0.15
Oct	69.2	2.5	0.57	0
Nov	65.6	4.3	0.81	-0.2
Dec	59.8	3.3	3.02	1.49
Total	66.3	2.7	7.65	-2.69

Here are the rain totals across the region for each month.

Most of California was also warmer and drier than normal. The main exception was the San Joaquin Valley.

California wasn't alone - the entire western third of the U.S. was warm and dry. 2018 was the hottest on record for parts of Arizona and New Mexico.

Conversely, it was cold and wet for the Upper Midwest. Northern Iowa, southern Minnesota and southern Wisconsin saw record rainfall.

Remnants of hurricanes and tropical storms brought record rainfall to the Mid-Atlantic region. Temperatures were generally above average across the entire East Coast and Deep South.