| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 24.2° | 15.6° | 48.7mm | 7.3 | 85 |
| February | 25.5° | 17.4° | 57.3mm | 7.2 | 86 |
| March | 26.7° | 18.8° | 79.8mm | 7 | 86 |
| April | 28.3° | 21° | 83mm | 7 | 81 |
| May | 29.8° | 23° | 125.7mm | 9.2 | 70 |
| June | 31.2° | 24.7° | 186.3mm | 14.9 | 53 |
| July | 32.1° | 25.5° | 148.4mm | 15.7 | 50 |
| August | 32.3° | 25.7° | 138.1mm | 15.5 | 49 |
| September | 31.4° | 25° | 194.6mm | 16.4 | 52 |
| October | 29.7° | 23.4° | 152.1mm | 11.7 | 66 |
| November | 27.1° | 20° | 94.2mm | 9.7 | 80 |
| December | 25.4° | 17.9° | 67.3mm | 8.9 | 82 |
January in Deerfield Beach averages a daily high of 24.2°C with nights around 15.6°C. Expect roughly 7.3 wet days totalling 48.7mm. Comfortable conditions for being outdoors all day.
February in Deerfield Beach averages a daily high of 25.5°C with nights around 17.4°C. Expect roughly 7.2 wet days totalling 57.3mm. Comfortable conditions for being outdoors all day.
March in Deerfield Beach averages a daily high of 26.7°C with nights around 18.8°C. Expect roughly 7 wet days totalling 79.8mm. Comfortable conditions for being outdoors all day.
April in Deerfield Beach averages a daily high of 28.3°C with nights around 21°C. Expect roughly 7 wet days totalling 83mm. Comfortable conditions for being outdoors all day.
May in Deerfield Beach averages a daily high of 29.8°C with nights around 23°C. Expect roughly 9.2 wet days totalling 125.7mm. Generally workable, with some weather to plan around.
June in Deerfield Beach averages a daily high of 31.2°C with nights around 24.7°C. Expect roughly 14.9 wet days totalling 186.3mm. Demanding conditions — pack for it and plan indoor options.
July in Deerfield Beach averages a daily high of 32.1°C with nights around 25.5°C. Expect roughly 15.7 wet days totalling 148.4mm. Demanding conditions — pack for it and plan indoor options.
August in Deerfield Beach averages a daily high of 32.3°C with nights around 25.7°C. Expect roughly 15.5 wet days totalling 138.1mm. Demanding conditions — pack for it and plan indoor options.
September in Deerfield Beach averages a daily high of 31.4°C with nights around 25°C. Expect roughly 16.4 wet days totalling 194.6mm. Demanding conditions — pack for it and plan indoor options.
October in Deerfield Beach averages a daily high of 29.7°C with nights around 23.4°C. Expect roughly 11.7 wet days totalling 152.1mm. Generally workable, with some weather to plan around.
November in Deerfield Beach averages a daily high of 27.1°C with nights around 20°C. Expect roughly 9.7 wet days totalling 94.2mm. Comfortable conditions for being outdoors all day.
December in Deerfield Beach averages a daily high of 25.4°C with nights around 17.9°C. Expect roughly 8.9 wet days totalling 67.3mm. Comfortable conditions for being outdoors all day.
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. Deerfield Beach peaks at 86.
Based on 30 years of records, November–April scores highest for comfort in Deerfield Beach, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 32.3°C.
September is the wettest, averaging 194.6mm of rain across roughly 16.4 wet days.
January is the coolest month, with average daily highs around 24.2°C.