Climate at a glance · Thunder Bay

Annual mean37°day and night

Precipitation30.00 ina year

Warmest monthJulyavg high 77°

Coldest monthJanuaryavg low -6°

Average temperature by month

High · low

17°-6°

24°-1°

34°10°

50°24°

63°34°

72°44°

77°50°

75°48°

65°41°

51°30°

35°18°

22°3°

JanFebMarAprMayJunJulAugSepOctNovDec

30.00 in a year

1.73 in

1.10 in

1.42 in

2.24 in

3.03 in

3.58 in

3.82 in

3.23 in

2.99 in

2.83 in

2.24 in

1.77 in

JanFebMarAprMayJunJulAugSepOctNovDec

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high	17°	24°	34°	50°	63°	72°	77°	75°	65°	51°	35°	22°
Avg low	-6°	-1°	10°	24°	34°	44°	50°	48°	41°	30°	18°	3°
Precip, in	1.73	1.10	1.42	2.24	3.03	3.58	3.82	3.23	2.99	2.83	2.24	1.77

Climate normals 1981–2010 · Flint station (32 km away) · Environment and Climate Change Canada

48.3820°N, 89.2502°W · Elevation 617 ft