Climate at a glance · Sarnia

Annual mean47°day and night

Precipitation34.61 ina year

Warmest monthJulyavg high 80°

Coldest monthJanuaryavg low 17°

Average temperature by month

High · low

30°17°

32°19°

41°26°

54°35°

65°45°

75°55°

80°60°

77°59°

71°52°

58°42°

46°33°

35°23°

JanFebMarAprMayJunJulAugSepOctNovDec

34.61 in a year

2.05 in

2.01 in

2.24 in

2.83 in

3.15 in

3.27 in

3.07 in

3.11 in

4.13 in

2.99 in

3.23 in

2.52 in

JanFebMarAprMayJunJulAugSepOctNovDec

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high	30°	32°	41°	54°	65°	75°	80°	77°	71°	58°	46°	35°
Avg low	17°	19°	26°	35°	45°	55°	60°	59°	52°	42°	33°	23°
Precip, in	2.05	2.01	2.24	2.83	3.15	3.27	3.07	3.11	4.13	2.99	3.23	2.52

Climate normals 1981–2010 · Sarnia Airport station (8 km away) · Environment and Climate Change Canada

42.9787°N, 82.4041°W · Elevation 607 ft