| Month | High | Low | Rain | Wet days | Score |
|---|---|---|---|---|---|
| January | 20° | 7.8° | 61.6mm | 5.2 | 90 |
| February | 19.9° | 7.8° | 84.2mm | 6.1 | 87 |
| March | 21.7° | 9.3° | 52.6mm | 5.7 | 89 |
| April | 23.6° | 10.9° | 19mm | 2.8 | 94 |
| May | 25.7° | 13.2° | 5.4mm | 1.4 | 97 |
| June | 29.1° | 15.6° | 0.6mm | 0.3 | 91 |
| July | 33° | 18.2° | 0.6mm | 0.2 | 76 |
| August | 33.7° | 18.4° | 4.8mm | 0.2 | 73 |
| September | 31.9° | 17.2° | 2.6mm | 0.6 | 79 |
| October | 27.9° | 13.9° | 11.5mm | 2.2 | 92 |
| November | 23.3° | 9.6° | 18.3mm | 3.3 | 93 |
| December | 19.5° | 7.2° | 53.4mm | 5.7 | 87 |
January in Northridge averages a daily high of 20°C with nights around 7.8°C. Expect roughly 5.2 wet days totalling 61.6mm. Comfortable conditions for being outdoors all day.
February in Northridge averages a daily high of 19.9°C with nights around 7.8°C. Expect roughly 6.1 wet days totalling 84.2mm. Comfortable conditions for being outdoors all day.
March in Northridge averages a daily high of 21.7°C with nights around 9.3°C. Expect roughly 5.7 wet days totalling 52.6mm. Comfortable conditions for being outdoors all day.
April in Northridge averages a daily high of 23.6°C with nights around 10.9°C. Rain is rare — about 2.8 wet days and 19mm across the month. Comfortable conditions for being outdoors all day.
May in Northridge averages a daily high of 25.7°C with nights around 13.2°C. Rain is rare — about 1.4 wet days and 5.4mm across the month. Comfortable conditions for being outdoors all day.
June in Northridge averages a daily high of 29.1°C with nights around 15.6°C. Rain is rare — about 0.3 wet days and 0.6mm across the month. Comfortable conditions for being outdoors all day.
July in Northridge averages a daily high of 33°C with nights around 18.2°C. Rain is rare — about 0.2 wet days and 0.6mm across the month. Comfortable conditions for being outdoors all day.
August in Northridge averages a daily high of 33.7°C with nights around 18.4°C. Rain is rare — about 0.2 wet days and 4.8mm across the month. Generally workable, with some weather to plan around.
September in Northridge averages a daily high of 31.9°C with nights around 17.2°C. Rain is rare — about 0.6 wet days and 2.6mm across the month. Comfortable conditions for being outdoors all day.
October in Northridge averages a daily high of 27.9°C with nights around 13.9°C. Rain is rare — about 2.2 wet days and 11.5mm across the month. Comfortable conditions for being outdoors all day.
November in Northridge averages a daily high of 23.3°C with nights around 9.6°C. Expect roughly 3.3 wet days totalling 18.3mm. Comfortable conditions for being outdoors all day.
December in Northridge averages a daily high of 19.5°C with nights around 7.2°C. Expect roughly 5.7 wet days totalling 53.4mm. 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. Northridge peaks at 97.
Based on 30 years of records, March–June scores highest for comfort in Northridge, balancing daytime temperature against rainfall.
August is the warmest, averaging a daily high of 33.7°C.
February is the wettest, averaging 84.2mm of rain across roughly 6.1 wet days.
December is the coolest month, with average daily highs around 19.5°C.