Bertha Lake Boat Launch Air Temperatures
Jan
| High: | 28 F° | (-2 C°) |
| Low: | 13 F° | (-10.4 C°) |
Feb
| High: | 31 F° | (-0.4 C°) |
| Low: | 14 F° | (-10 C°) |
March
| High: | 41 F° | (5.2 C°) |
| Low: | 22 F° | (-5.7 C°) |
April
| High: | 55 F° | (13 C°) |
| Low: | 34 F° | (0.9 C°) |
May
| High: | 68 F° | (20 C°) |
| Low: | 44 F° | (6.7 C°) |
June
| High: | 78 F° | (25.4 C°) |
| Low: | 54 F° | (12.3 C°) |
July
| High: | 82 F° | (27.7 C°) |
| Low: | 58 F° | (14.7 C°) |
August
| High: | 79 F° | (26.3 C°) |
| Low: | 57 F° | (13.7 C°) |
Sept
| High: | 71 F° | (21.9 C°) |
| Low: | 49 F° | (9.3 C°) |
Oct
| High: | 58 F° | (14.6 C°) |
| Low: | 38 F° | (3.4 C°) |
Nov
| High: | 45 F° | (7.1 C°) |
| Low: | 29 F° | (-1.6 C°) |
Dec
| High: | 33 F° | (0.7 C°) |
| Low: | 20 F° | (-6.8 C°) |