| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 6.1° | -3.6° | 73mm | 9.8 | 28 |
| February | 7.9° | -2.5° | 61.5mm | 9 | 37 |
| March | 12.4° | 1.4° | 83.3mm | 9.6 | 56 |
| April | 18.7° | 6.7° | 85.1mm | 10.6 | 75 |
| May | 23.5° | 12.2° | 108.7mm | 11.5 | 77 |
| June | 28.4° | 17.3° | 111.8mm | 10.4 | 74 |
| July | 30.8° | 19.8° | 115.6mm | 10.2 | 64 |
| August | 29.9° | 19.1° | 105.9mm | 9.7 | 69 |
| September | 26.3° | 15.4° | 115.2mm | 8.2 | 84 |
| October | 20.2° | 8.5° | 99.9mm | 8.6 | 83 |
| November | 13.9° | 2.6° | 68.4mm | 8 | 64 |
| December | 8.4° | -1.3° | 88.8mm | 9.4 | 39 |
January in Silver Spring averages a daily high of 6.1°C with nights around -3.6°C. Expect roughly 9.8 wet days totalling 73mm. A hard month to visit for comfort alone.
February in Silver Spring averages a daily high of 7.9°C with nights around -2.5°C. Expect roughly 9 wet days totalling 61.5mm. Demanding conditions — pack for it and plan indoor options.
March in Silver Spring averages a daily high of 12.4°C with nights around 1.4°C. Expect roughly 9.6 wet days totalling 83.3mm. Generally workable, with some weather to plan around.
April in Silver Spring averages a daily high of 18.7°C with nights around 6.7°C. Expect roughly 10.6 wet days totalling 85.1mm. Comfortable conditions for being outdoors all day.
May in Silver Spring averages a daily high of 23.5°C with nights around 12.2°C. Expect roughly 11.5 wet days totalling 108.7mm. Comfortable conditions for being outdoors all day.
June in Silver Spring averages a daily high of 28.4°C with nights around 17.3°C. Expect roughly 10.4 wet days totalling 111.8mm. Generally workable, with some weather to plan around.
July in Silver Spring averages a daily high of 30.8°C with nights around 19.8°C. Expect roughly 10.2 wet days totalling 115.6mm. Generally workable, with some weather to plan around.
August in Silver Spring averages a daily high of 29.9°C with nights around 19.1°C. Expect roughly 9.7 wet days totalling 105.9mm. Generally workable, with some weather to plan around.
September in Silver Spring averages a daily high of 26.3°C with nights around 15.4°C. Expect roughly 8.2 wet days totalling 115.2mm. Comfortable conditions for being outdoors all day.
October in Silver Spring averages a daily high of 20.2°C with nights around 8.5°C. Expect roughly 8.6 wet days totalling 99.9mm. Comfortable conditions for being outdoors all day.
November in Silver Spring averages a daily high of 13.9°C with nights around 2.6°C. Expect roughly 8 wet days totalling 68.4mm. Generally workable, with some weather to plan around.
December in Silver Spring averages a daily high of 8.4°C with nights around -1.3°C. Expect roughly 9.4 wet days totalling 88.8mm. Demanding conditions — pack for it and plan indoor options.
Each month scores out of 100. It starts at 100 and loses points for daytime highs outside a 20–27°C band, for wet days, and for nights below 2°C. Nothing else is weighted in — no crowd data, no prices, no opinion. Silver Spring peaks at 84.
Based on 30 years of records, September–October scores highest for comfort in Silver Spring, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 30.8°C.
July is the wettest, averaging 115.6mm of rain across roughly 10.2 wet days.
January is the coolest month, with average daily highs around 6.1°C.