PlainClimate
NOAA 1991–2020 normals 64°F annual avg Public-domain federal data

N Myrtle Bch, SC Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

64°F
Avg annual temp
92/100
Comfort score
48.5"
Annual precip
252d
Growing season

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

The climate verdict for N Myrtle Bch

N Myrtle Bch, South Carolina averages 64°F a year and scores 92/100 on the comfort index - excellent, milder than 94% of U.S. cities.

64°F
average temperature, NOAA 1991-2020 normal
92/100
comfort score, milder than 94% of U.S. cities
48.5"
yearly precipitation total
252 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

64°F (18°C)

Avg High

73°F

Avg Low

55°F

Annual Precip

48.5"

Comfort Score

92/100

Excellent

Climate Comfort Score

92/100

Excellent

Avg Annual Temperature

64°F

30-year mean (NOAA NCEI)

Annual Precipitation

48.5"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (N Myrtle Bch) 92.0%
National median (63)

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

How N Myrtle Bch compares to every U.S. city

N Myrtle Bch's comfort score vs. all U.S. cities

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

92 Top 6% higher than 94% 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 N Myrtle Bch

Methodology

The chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For N Myrtle Bch, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.

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 56°F (13°C) 37°F (3°C) 46°F (8°C)
February 58°F (15°C) 40°F (4°C) 49°F (9°C)
March 65°F (18°C) 45°F (7°C) 55°F (13°C)
April 72°F (22°C) 53°F (12°C) 63°F (17°C)
May 79°F (26°C) 62°F (17°C) 70°F (21°C)
June 85°F (29°C) 70°F (21°C) 78°F (25°C)
July 88°F (31°C) 74°F (23°C) 81°F (27°C)
August 87°F (30°C) 73°F (23°C) 80°F (26°C)
September 83°F (28°C) 68°F (20°C) 76°F (24°C)
October 76°F (24°C) 56°F (13°C) 66°F (19°C)
November 66°F (19°C) 46°F (8°C) 56°F (13°C)
December 59°F (15°C) 40°F (4°C) 50°F (10°C)

Monthly Precipitation

Average monthly rainfall

January 3.0"

9.8 days with precipitation

February 3.2"

9.3 days with precipitation

March 3.6"

9.8 days with precipitation

April 2.8"

8.4 days with precipitation

May 3.0"

9.6 days with precipitation

June 4.1"

11.3 days with precipitation

July 5.4"

12.6 days with precipitation

August 6.3"

12.3 days with precipitation

September 6.7"

10.9 days with precipitation

October 4.2"

8.7 days with precipitation

November 3.3"

8.9 days with precipitation

December 3.1"

10.4 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 20

50% probability date

Last Spring Freeze

March 13

50% probability date

Growing Season

252 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

2,343

Higher = more heating needed

Cooling Degree Days

2,003

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

What N Myrtle Bch's climate means for you

N Myrtle Bch runs 64°F a year - peaking in July, coldest in January.

  • Gardeners get about 252 frost-free days, with the last spring freeze near March 13 - plan the planting calendar around it, not the regional average.
  • Energy bills track 2,343 heating and 2,003 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: N Myrtle Bch, SC

In N Myrtle Bch, South Carolina, the NOAA 1991–2020 climate normals put the annual average temperature at 64°F, ranging from a mean daily high of 73°F to a mean daily low of 55°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00093718, these numbers smooth out year-to-year noise into a working baseline for a typical month.

Anyone planning to live, garden, or travel in N Myrtle Bch should weigh precipitation alongside temperature: the annual average runs 48.5 inches, predominantly as rainfall. The frost-free season averages 252 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 13 and the first fall freeze near November 20. And on the energy front, 2,343 heating degree days and 2,003 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, N Myrtle Bch scores 92/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above are the practical planning tool: mild highs and lows land in the shoulder seasons, July-driven heat peaks in summer, and January-driven cold sets in over deep winter. These are thirty-year averages, not a forecast - any single year can run warmer, wetter, drier, or cooler than the normal.

Frequently Asked Questions

What is the average temperature in N Myrtle Bch, SC?
The average annual temperature in N Myrtle Bch, South Carolina is 64°F. The warmest month averages 88°F (31°C) and the coldest averages 37°F (3°C).
How much rain does N Myrtle Bch get?
N Myrtle Bch receives 48.5 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for N Myrtle Bch?
N Myrtle Bch has a climate comfort score of 92/100 (Excellent), milder than 94% of U.S. cities in the PlainClimate database.
When is the growing season in N Myrtle Bch?
N Myrtle Bch has approximately 252 frost-free days per year, with the last spring freeze around March 13 and the first fall freeze around November 20.
How much energy does heating and cooling require in N Myrtle Bch?
N Myrtle Bch has 2,343 heating degree days and 2,003 cooling degree days annually, a fairly balanced heating/cooling split. 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 N Myrtle Bch climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00093718 near N Myrtle Bch.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00093718. 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.