| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 2.5° | -6.3° | 96.7mm | 11.9 | 9 |
| February | 4.6° | -5.7° | 82mm | 11 | 17 |
| March | 9.1° | -1.9° | 103.6mm | 12.1 | 35 |
| April | 16° | 3.7° | 111.9mm | 12 | 63 |
| May | 21.8° | 9.1° | 114mm | 13.4 | 73 |
| June | 26.7° | 14.5° | 121mm | 12 | 76 |
| July | 29.7° | 17.6° | 129.4mm | 11 | 67 |
| August | 28.4° | 16.8° | 118.2mm | 9.7 | 75 |
| September | 24° | 12.5° | 138.6mm | 9.3 | 81 |
| October | 17.6° | 6.2° | 130.3mm | 10.3 | 72 |
| November | 10.7° | 0.6° | 100.2mm | 9.6 | 49 |
| December | 5° | -3.5° | 118.9mm | 12.2 | 19 |
January in Danbury averages a daily high of 2.5°C with nights around -6.3°C. Expect roughly 11.9 wet days totalling 96.7mm. A hard month to visit for comfort alone.
February in Danbury averages a daily high of 4.6°C with nights around -5.7°C. Expect roughly 11 wet days totalling 82mm. A hard month to visit for comfort alone.
March in Danbury averages a daily high of 9.1°C with nights around -1.9°C. Expect roughly 12.1 wet days totalling 103.6mm. Demanding conditions — pack for it and plan indoor options.
April in Danbury averages a daily high of 16°C with nights around 3.7°C. Expect roughly 12 wet days totalling 111.9mm. Generally workable, with some weather to plan around.
May in Danbury averages a daily high of 21.8°C with nights around 9.1°C. Expect roughly 13.4 wet days totalling 114mm. Generally workable, with some weather to plan around.
June in Danbury averages a daily high of 26.7°C with nights around 14.5°C. Expect roughly 12 wet days totalling 121mm. Comfortable conditions for being outdoors all day.
July in Danbury averages a daily high of 29.7°C with nights around 17.6°C. Expect roughly 11 wet days totalling 129.4mm. Generally workable, with some weather to plan around.
August in Danbury averages a daily high of 28.4°C with nights around 16.8°C. Expect roughly 9.7 wet days totalling 118.2mm. Comfortable conditions for being outdoors all day.
September in Danbury averages a daily high of 24°C with nights around 12.5°C. Expect roughly 9.3 wet days totalling 138.6mm. Comfortable conditions for being outdoors all day.
October in Danbury averages a daily high of 17.6°C with nights around 6.2°C. Expect roughly 10.3 wet days totalling 130.3mm. Generally workable, with some weather to plan around.
November in Danbury averages a daily high of 10.7°C with nights around 0.6°C. Expect roughly 9.6 wet days totalling 100.2mm. Demanding conditions — pack for it and plan indoor options.
December in Danbury averages a daily high of 5°C with nights around -3.5°C. Expect roughly 12.2 wet days totalling 118.9mm. A hard month to visit for comfort alone.
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. Danbury peaks at 81.
Based on 30 years of records, May–June scores highest for comfort in Danbury, balancing daytime temperature against rainfall.
July is the warmest, averaging a daily high of 29.7°C.
September is the wettest, averaging 138.6mm of rain across roughly 9.3 wet days.
January is the coolest month, with average daily highs around 2.5°C.