Apex, North Carolina Weather
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Climate of Apex: monthly averages
Based on 25 years of satellite and reanalysis data (2001-2025), July is usually the hottest month in Apex, with average daytime highs around 33°C. January is the coolest, when nights typically fall to about -1°C and frost is possible on the coldest nights. That is a wide yearly range of roughly 34°C, so the seasons feel very different from each other.
The area receives about 1220 mm of rain in a typical year. Most of it falls from May to September (around 51% of the yearly total), and August is the wettest month at roughly 138 mm.
For outdoor plans and travel, April and October usually offer the most comfortable weather in Apex, with mild days and relatively little rain.
| Month | Avg high | Avg low | Rainfall | Humidity |
|---|---|---|---|---|
| Jan | 10° | -1° | 71 mm | 81% |
| Feb | 12° | 0° | 79 mm | 80% |
| Mar | 16° | 4° | 93 mm | 79% |
| Apr | 22° | 9° | 90 mm | 76% |
| May | 26° | 15° | 101 mm | 76% |
| Jun | 31° | 20° | 117 mm | 73% |
| Jul | 33° | 21° | 133 mm | 72% |
| Aug | 31° | 21° | 138 mm | 74% |
| Sep | 28° | 17° | 131 mm | 77% |
| Oct | 23° | 11° | 82 mm | 77% |
| Nov | 17° | 4° | 89 mm | 78% |
| Dec | 12° | 1° | 94 mm | 82% |
Source: NASA POWER (MERRA-2 reanalysis), averaged over the roughly 50 km grid area around Apex. Values describe typical conditions, not a forecast.
About Apex weather
Apex is set in North Carolina's range from Atlantic coastal plain to the cooler Appalachian mountains, about 20 km west of Raleigh. Summers bring hot, humid summers (June–August) with highs in the low-to-mid 30s°C. The year winds down with mild winters near the coast, colder with regular snow in the mountains. This page shows live, auto-refreshing weather for Apex: current conditions, an hourly breakdown, a 16-day outlook, a date-lookup tool for any past or future date, and real-time air quality, sourced from Open-Meteo. Local timezone: America/New_York.
Frequently asked questions
Apex is about 20 km west of Raleigh, in North Carolina.
Apex sees mild winters near the coast, colder with regular snow in the mountains.
The live current conditions, hourly forecast and 16-day outlook above are pulled in real time for Apex's exact coordinates. No fixed schedule, the page updates whenever you load it.
July is usually the hottest month in Apex, with average daytime highs of about 33°C and nights around 21°C.
The coldest nights come in January, when the average low is about -1°C and daytime highs reach around 10°C. Frost is possible on clear, calm nights.
Apex receives about 1220 mm of rain in a typical year. August is the wettest month at roughly 138 mm, and the main rainy period is May to September.
April and October usually offer the most comfortable weather in Apex, with mild daytime temperatures and little rain.
In November Apex typically sees daytime highs near 17°C and lows near 4°C, with about 89 mm of rain over the month and average humidity around 78%. Check the live forecast above for this week's actual conditions.
Up to 16 days ahead using the extended forecast and date picker above; further-out or historical dates use the same date lookup tool.
Live temperature for Apex is shown at the top of this page and refreshes automatically — see the hourly breakdown below for how it changes through the day.
Apex's day-to-day weather follows the broader pattern of North Carolina described above. See the hourly weather forecast or the air quality index for more detail.