WALLA WALLA AVERAGE TEMPERATURES
Month	Avg. High	Avg. Low	Mean	Avg. Precip.	Record High	Record Low
Jan	41°F	29°F	35°F	2.25 in.	63°F (1964)	-6°F (1979)
Feb	47°F	33°F	40°F	1.97 in.	65°F (1991)	-16°F (1950)
Mar	56°F	37°F	46°F	2.20 in.	72°F (1994)	4°F (1993)
Apr	64°F	41°F	53°F	1.83 in.	75°F (1992)	30°F (1999)
May	72°F	48°F	60°F	1.95 in.	81°F (1976)	26°F (1954)
Jun	80°F	54°F	67°F	1.15 in.	98°F (1957)	36°F (1966)
Jul	90°F	61°F	75°F	0.73 in.	99°F (1987)	47°F (1955)
Aug	89°F	61°F	75°F	0.84 in.	105°F (1977)	50°F (1987)
Sep	79°F	53°F	66°F	0.83 in.	99°F (1987)	44°F (1999)
Oct	66°F	44°F	55°F	1.77 in.	87°F (1974)	32°F (1950)
Nov	50°F	36°F	43°F	2.85 in.	74°F (1981)	20°F (1951)
Dec	41°F	29°F	35°F	2.51 in.	61°F (1958)	-2°F (1985)