Climate Comfort Score
78/100
Good
NOAA 1991–2020 normals 62°F annual avg Public-domain federal data
Myrtle Beach, SC Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 62°F
- Avg annual temp
- 78/100
- Comfort score
- 53.6"
- Annual precip
- 237d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Myrtle Beach
Myrtle Beach, South Carolina averages 62°F a year and scores 78/100 on the comfort index - good, milder than 74% of U.S. cities.
- 62°F
- annual average temperature (NOAA normal)
- 78/100
- comfort score, milder than 74% of U.S. cities
- 53.6"
- annual precipitation
- 237 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
62°F (17°C)
Avg High
72°F
Avg Low
52°F
Annual Precip
53.6"
Comfort Score
78/100
Good
Avg Annual Temperature
62°F
30-year mean (NOAA NCEI)
Annual Precipitation
53.6"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Myrtle Beach) 78.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Myrtle Beach area.
How Myrtle Beach compares to every U.S. city
Myrtle Beach's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 26% higher than 74% of 6,915 US cities
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 Myrtle Beach
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Myrtle Beach's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 34°F (1°C) | 45°F (7°C) | 3.4" | 12.7 | 0.0 |
| February | 58°F (14°C) | 36°F (2°C) | 47°F (8°C) | 3.8" | 8.2 | 0.0 |
| March | 64°F (18°C) | 42°F (5°C) | 53°F (12°C) | 3.7" | 3.6 | 0.0 |
| April | 72°F (22°C) | 51°F (10°C) | 61°F (16°C) | 3.4" | 0.2 | 0.2 |
| May | 79°F (26°C) | 60°F (15°C) | 69°F (21°C) | 3.8" | 0.0 | 1.5 |
| June | 85°F (29°C) | 68°F (20°C) | 76°F (25°C) | 4.8" | 0.0 | 4.4 |
| July | 87°F (31°C) | 72°F (22°C) | 80°F (26°C) | 6.6" | 0.0 | 8.2 |
| August | 87°F (30°C) | 70°F (21°C) | 78°F (26°C) | 6.3" | 0.0 | 5.6 |
| September | 83°F (28°C) | 65°F (18°C) | 74°F (23°C) | 6.8" | 0.0 | 1.9 |
| October | 76°F (24°C) | 54°F (12°C) | 65°F (18°C) | 4.1" | 0.2 | 0.2 |
| November | 66°F (19°C) | 42°F (6°C) | 54°F (12°C) | 3.1" | 3.4 | 0.0 |
| December | 59°F (15°C) | 36°F (2°C) | 47°F (9°C) | 3.8" | 9.9 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.4"
February 3.8"
March 3.7"
April 3.4"
May 3.8"
June 4.8"
July 6.6"
August 6.3"
September 6.8"
October 4.1"
November 3.1"
December 3.8"
Frost Dates & Growing Season
First Fall Freeze
November 13
50% probability date
Last Spring Freeze
March 21
50% probability date
Growing Season
237 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,671
Higher = more heating needed
Cooling Degree Days
1,748
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Myrtle Beach's climate means for you
Myrtle Beach runs 62°F a year - peaking in July, coldest in January.
- Gardeners get about 237 frost-free days, with the last spring freeze near March 21 - plan the planting calendar around it, not the regional average.
- Energy bills track 2,671 heating and 1,748 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: Myrtle Beach, SC
In Myrtle Beach, South Carolina, the NOAA 1991–2020 climate normals put the annual average temperature at 62°F, ranging from a mean daily high of 72°F to a mean daily low of 52°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USC00386153, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Myrtle Beach receives roughly 53.6 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 237 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 21 and the first fall freeze near November 13. For energy use, 2,671 heating degree days and 1,748 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Myrtle Beach scores 78/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings July-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.
Frequently Asked Questions
What is the average temperature in Myrtle Beach, SC? ▼
The average annual temperature in Myrtle Beach, South Carolina is 62°F. The warmest month averages 87°F (31°C) and the coldest averages 34°F (1°C).
How much rain does Myrtle Beach get? ▼
Myrtle Beach receives 53.6 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Myrtle Beach? ▼
Myrtle Beach has a climate comfort score of 78/100 (Good), milder than 74% of U.S. cities in the PlainClimate database.
When is the growing season in Myrtle Beach? ▼
Myrtle Beach has approximately 237 frost-free days per year, with the last spring freeze around March 21 and the first fall freeze around November 13.
How much energy does heating and cooling require in Myrtle Beach? ▼
Myrtle Beach has 2,671 heating degree days and 1,748 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 Myrtle Beach climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00386153 near Myrtle Beach.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00386153. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.