Weather history and climate summary information is available for the following locations:
- Eugene
- Medford
- Pendleton
- Portland
Warmest April Days
The warmest April days in Oregon are:
| Medford, Oregon | 1987 | 93°F |
| Medford, Oregon | 2009 | 91.9°F |
| Pendleton, Oregon | 1977 | 91°F |
| Medford, Oregon | 2004 | 90°F |
| Medford, Oregon | 2012 | 89.1°F |
Coldest April Days
The coldest April days in Oregon were:
| Pendleton, Oregon | 1975 | 21.2°F |
| Pendleton, Oregon | 2007 | 21.9°F |
| Medford, Oregon | 1976 | 24.1°F |
| Pendleton, Oregon | 2010 | 24.1°F |
| Pendleton, Oregon | 2008 | 24.1°F |
Wettest April Days
The wettest single days in April occurred:
| Pendleton, Oregon | 1973 | 5.9 inches |
| Eugene, Oregon | 1973 | 5.5 inches |
| Medford, Oregon | 1973 | 5.5 inches |
| Eugene, Oregon | 1992 | 2.1 inches |
| Eugene, Oregon | 1993 | 1.4 inches |