Climate Comfort Score
88/100
Excellent
NOAA 1991–2020 normals 61°F annual avg Public-domain federal data
Rock Hill York CO, SC Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 61°F
- Avg annual temp
- 88/100
- Comfort score
- 42.4"
- Annual precip
- 218d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Rock Hill York CO
Rock Hill York CO, South Carolina averages 61°F a year and scores 88/100 on the comfort index - excellent, milder than 92% of U.S. cities.
- 61°F
- annual average temperature (NOAA normal)
- 88/100
- comfort score, milder than 92% of U.S. cities
- 42.4"
- yearly precipitation total
- 218 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
61°F (16°C)
Avg High
72°F
Avg Low
50°F
Annual Precip
42.4"
Comfort Score
88/100
Excellent
Avg Annual Temperature
61°F
30-year mean (NOAA NCEI)
Annual Precipitation
42.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Rock Hill York CO) 88.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Rock Hill York CO area.
How Rock Hill York CO compares to every U.S. city
Rock Hill York CO's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
88 Top 8% higher than 92% 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 Rock Hill York CO
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Rock Hill York CO captures average conditions across the spread shown, the most recent decade is 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 | 52°F (11°C) | 31°F (-1°C) | 42°F (5°C) | 3.5" | 18.7 | 0.0 |
| February | 57°F (14°C) | 34°F (1°C) | 45°F (7°C) | 3.1" | 13.8 | 0.0 |
| March | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 3.8" | 7.4 | 0.0 |
| April | 74°F (23°C) | 48°F (9°C) | 61°F (16°C) | 3.5" | 0.7 | 0.3 |
| May | 80°F (27°C) | 57°F (14°C) | 69°F (20°C) | 3.2" | 0.0 | 2.4 |
| June | 87°F (31°C) | 66°F (19°C) | 76°F (25°C) | 4.0" | 0.0 | 11.8 |
| July | 90°F (32°C) | 69°F (21°C) | 80°F (27°C) | 4.0" | 0.0 | 18.3 |
| August | 89°F (31°C) | 68°F (20°C) | 78°F (26°C) | 4.0" | 0.0 | 15.6 |
| September | 83°F (28°C) | 62°F (17°C) | 72°F (22°C) | 3.4" | 0.0 | 5.9 |
| October | 73°F (23°C) | 49°F (10°C) | 61°F (16°C) | 3.0" | 1.0 | 0.4 |
| November | 63°F (17°C) | 39°F (4°C) | 51°F (11°C) | 3.3" | 7.8 | 0.0 |
| December | 55°F (13°C) | 33°F (1°C) | 44°F (7°C) | 3.6" | 16.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.5"
10.4 days with precipitation
February 3.1"
10.2 days with precipitation
March 3.8"
10.4 days with precipitation
April 3.5"
9.2 days with precipitation
May 3.2"
10.6 days with precipitation
June 4.0"
10.7 days with precipitation
July 4.0"
12.1 days with precipitation
August 4.0"
10.8 days with precipitation
September 3.4"
9.5 days with precipitation
October 3.0"
9.8 days with precipitation
November 3.3"
9.8 days with precipitation
December 3.6"
11.2 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
November 4
50% probability date
Last Spring Freeze
March 31
50% probability date
Growing Season
218 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,141
Higher = more heating needed
Cooling Degree Days
1,706
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Rock Hill York CO's climate means for you
Rock Hill York CO runs 61°F a year - peaking in July, coldest in January.
- Gardeners get about 218 frost-free days, with the last spring freeze near March 31 - plan the planting calendar around it, not the regional average.
- Energy bills track 3,141 heating and 1,706 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: Rock Hill York CO, SC
An annual average temperature of 61°F, ranging from a mean daily high of 72°F to a mean daily low of 50°F is what the NOAA 1991–2020 climate normals report for Rock Hill York CO, South Carolina. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USW00053871 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Rock Hill York CO averages 42.4 inches of precipitation annually, predominantly as rainfall - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 218 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near March 31 and the first fall freeze near November 4. Turning to energy use, 3,141 heating degree days and 1,706 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Rock Hill York CO scores 88/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings July-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Rock Hill York CO, SC? ▼
The average annual temperature in Rock Hill York CO, South Carolina is 61°F. The warmest month averages 90°F (32°C) and the coldest averages 31°F (-1°C).
How much rain does Rock Hill York CO get? ▼
Rock Hill York CO receives 42.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Rock Hill York CO? ▼
Rock Hill York CO has a climate comfort score of 88/100 (Excellent), milder than 92% of U.S. cities in the PlainClimate database.
When is the growing season in Rock Hill York CO? ▼
Rock Hill York CO has approximately 218 frost-free days per year, with the last spring freeze around March 31 and the first fall freeze around November 4.
How much energy does heating and cooling require in Rock Hill York CO? ▼
Rock Hill York CO has 3,141 heating degree days and 1,706 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 Rock Hill York CO climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00053871 near Rock Hill York CO.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00053871. 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.