PlainClimate
NOAA 1991–2020 normals 60°F annual avg Public-domain federal data

Apex, NC Climate

Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →

60°F
Avg annual temp
93/100
Comfort score
48.3"
Annual precip
226d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Apex

Apex, North Carolina averages 60°F a year and scores 93/100 on the comfort index - excellent, milder than 95% of U.S. cities.

60°F
average temperature, NOAA 1991-2020 normal
93/100
comfort score, milder than 95% of U.S. cities
48.3"
annual precipitation · 5" snow
226 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

60°F (16°C)

Avg High

71°F

Avg Low

50°F

Annual Precip

48.3"

Annual Snow

4.8"

Comfort Score

93/100

Excellent

Climate Comfort Score

93/100

Excellent

Avg Annual Temperature

60°F

30-year mean (NOAA NCEI)

Annual Precipitation

48.3"

Plus 4.8" of snow

Comfort score vs national 100-point ceiling (Apex) 93.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Apex area.

How Apex compares to every U.S. city

Apex's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

93 Top 5% higher than 95% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). Below this entry. 80–90: 778 US cities (11%). Below this entry. 90–100: 420 US cities (6%). This entry sits in this band. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Apex

Methodology

Zooming out from Apex's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 51°F (11°C) 31°F (-1°C) 41°F (5°C)
February 54°F (12°C) 33°F (0°C) 44°F (6°C)
March 62°F (17°C) 39°F (4°C) 51°F (10°C)
April 72°F (22°C) 48°F (9°C) 60°F (15°C)
May 79°F (26°C) 57°F (14°C) 68°F (20°C)
June 86°F (30°C) 65°F (18°C) 75°F (24°C)
July 89°F (32°C) 69°F (21°C) 79°F (26°C)
August 87°F (31°C) 68°F (20°C) 78°F (25°C)
September 82°F (28°C) 62°F (17°C) 72°F (22°C)
October 72°F (22°C) 50°F (10°C) 61°F (16°C)
November 62°F (17°C) 40°F (4°C) 51°F (11°C)
December 54°F (12°C) 34°F (1°C) 44°F (7°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 3.6"

Snow: 2.9"

10.2 days with precipitation

February 3.0"

Snow: 1.0"

9.5 days with precipitation

March 4.1"

Snow: 0.4"

10.5 days with precipitation

April 3.6"

9.8 days with precipitation

May 3.8"

10.2 days with precipitation

June 4.3"

10.9 days with precipitation

July 5.1"

11.7 days with precipitation

August 4.6"

10.3 days with precipitation

September 5.3"

8.7 days with precipitation

October 3.7"

7.9 days with precipitation

November 3.5"

Snow: 0.3"

8.4 days with precipitation

December 3.7"

Snow: 0.2"

10.6 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 8

50% probability date

Last Spring Freeze

March 27

50% probability date

Growing Season

226 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

3,352

Higher = more heating needed

Cooling Degree Days

1,605

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What Apex's climate means for you

Apex runs 60°F a year - peaking in July, coldest in January.

  • Gardeners get about 226 frost-free days, with the last spring freeze near March 27 - plan the planting calendar around it, not the regional average.
  • Energy bills track 3,352 heating and 1,605 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Apex, NC

In Apex, North Carolina, the NOAA 1991–2020 climate normals put the annual average temperature at 60°F, ranging from a mean daily high of 71°F to a mean daily low of 50°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00310212, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in Apex should weigh precipitation alongside temperature: the annual average runs 48.3 inches, with 4.8 inches typically falling as snow. The frost-free season averages 226 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 27 and the first fall freeze near November 8. And on the energy front, 3,352 heating degree days and 1,605 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Apex scores 93/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Apex, NC?
The average annual temperature in Apex, North Carolina is 60°F. The warmest month averages 89°F (32°C) and the coldest averages 31°F (-1°C).
How much rain does Apex get?
Apex receives 48.3 inches of precipitation annually, including 4.8 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Apex?
Apex has a climate comfort score of 93/100 (Excellent), milder than 95% of U.S. cities in the PlainClimate database.
When is the growing season in Apex?
Apex has approximately 226 frost-free days per year, with the last spring freeze around March 27 and the first fall freeze around November 8.
How much energy does heating and cooling require in Apex?
Apex has 3,352 heating degree days and 1,605 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Apex climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00310212 near Apex.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00310212. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.