Climate - Glenn Dale - Maryland
| Jan | Feb | March | April | May | June | |
|---|---|---|---|---|---|---|
| Average high in °F | 42 | 46 | 55 | 65 | 74 | 82 |
| Average low in °F | 21 | 23 | 31 | 39 | 49 | 58 |
| Av. precipitation - inch | 3.46 | 2.83 | 3.94 | 3.43 | 4.69 | 3.74 |
| July | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average high in °F | 87 | 85 | 79 | 68 | 57 | 47 |
| Average low in °F | 63 | 62 | 55 | 42 | 33 | 26 |
| Av. precipitation - inch | 4.17 | 4.09 | 4.02 | 3.62 | 3.43 | 3.27 |
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Glenn Dale Climate Graph - Maryland Climate Chart
Totals and averages
| Annual average high temperature | 65.6 °F |
| Annual average low temperature | 41.9 °F |
| Average temperature | 53.8 °F |
| Average annual precipitation | 44.7 in. |