Sumac Island Boat Launch Air Temperatures
Jan
| High: | 29 F° | (-1.5 C°) |
| Low: | 15 F° | (-9.6 C°) |
Feb
| High: | 31 F° | (-0.4 C°) |
| Low: | 15 F° | (-9.4 C°) |
March
| High: | 41 F° | (4.8 C°) |
| Low: | 23 F° | (-4.9 C°) |
April
| High: | 54 F° | (12.2 C°) |
| Low: | 34 F° | (1.3 C°) |
May
| High: | 66 F° | (18.7 C°) |
| Low: | 44 F° | (6.8 C°) |
June
| High: | 75 F° | (24.1 C°) |
| Low: | 54 F° | (12.1 C°) |
July
| High: | 80 F° | (26.6 C°) |
| Low: | 59 F° | (14.9 C°) |
August
| High: | 78 F° | (25.7 C°) |
| Low: | 58 F° | (14.4 C°) |
Sept
| High: | 71 F° | (21.7 C°) |
| Low: | 51 F° | (10.4 C°) |
Oct
| High: | 58 F° | (14.5 C°) |
| Low: | 40 F° | (4.3 C°) |
Nov
| High: | 46 F° | (7.5 C°) |
| Low: | 31 F° | (-0.3 C°) |
Dec
| High: | 34 F° | (1.3 C°) |
| Low: | 21 F° | (-5.9 C°) |