Weather history and climate summary information is available for the following locations:
- Caribou
- Millinocket
- Portland
- Presque Isle
Warmest August Days
The warmest August days in Maine are:
| Portland, Maine | 1975 | 102.9°F |
| Portland, Maine | 1987 | 97°F |
| Presque Isle, Maine | 1947 | 96.3°F |
| Presque Isle, Maine | 1944 | 96.3°F |
| Millinocket, Maine | 1943 | 95.4°F |
Coldest August Days
The coldest August days in Maine were:
| Presque Isle, Maine | 1957 | 34°F |
| Presque Isle, Maine | 1956 | 34°F |
| Caribou, Maine | 2002 | 34°F |
| Caribou, Maine | 2003 | 34°F |
| Caribou, Maine | 1982 | 34°F |
Wettest August Days
The wettest single days in August occurred:
| Portland, Maine | 1992 | 13.3 inches |
| Portland, Maine | 1991 | 5.6 inches |
| Portland, Maine | 2009 | 3 inches |
| Caribou, Maine | 1991 | 2.8 inches |
| Portland, Maine | 2004 | 2.7 inches |