Climate Comfort Score
64/100
Good
NOAA 1991–2020 normals 46°F annual avg Public-domain federal data
Grafton, NY Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 46°F
- Avg annual temp
- 64/100
- Comfort score
- 47.1"
- Annual precip
- 163d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Grafton
Grafton, New York averages 46°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
- 46°F
- annual average temperature (NOAA normal)
- 64/100
- comfort score, milder than 51% of U.S. cities
- 47.1"
- yearly precipitation total
- 163 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
46°F (8°C)
Avg High
55°F
Avg Low
37°F
Annual Precip
47.1"
Comfort Score
64/100
Good
Avg Annual Temperature
46°F
30-year mean (NOAA NCEI)
Annual Precipitation
47.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Grafton) 64.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Grafton area.
How Grafton compares to every U.S. city
Grafton's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 Top 49% higher than 51% 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 Grafton
MethodologyThe chart below traces how the U.S. land temperature anomaly has moved against the global mean since 1900. For Grafton, the NOAA 1991-2020 normal captures average conditions across that spread - notably, the most recent decade runs warmer than the 30-year mean itself.
- 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 | 30°F (-1°C) | 14°F (-10°C) | 22°F (-5°C) | 3.0" | 29.3 | 0.0 |
| February | 32°F (0°C) | 16°F (-9°C) | 24°F (-4°C) | 2.6" | 26.1 | 0.0 |
| March | 41°F (5°C) | 23°F (-5°C) | 32°F (0°C) | 3.7" | 26.2 | 0.0 |
| April | 55°F (13°C) | 35°F (2°C) | 45°F (7°C) | 4.4" | 14.4 | 0.0 |
| May | 67°F (19°C) | 46°F (8°C) | 56°F (13°C) | 4.4" | 1.3 | 0.0 |
| June | 74°F (23°C) | 54°F (12°C) | 64°F (18°C) | 4.5" | 0.0 | 0.1 |
| July | 78°F (25°C) | 59°F (15°C) | 68°F (20°C) | 4.3" | 0.0 | 0.3 |
| August | 77°F (25°C) | 58°F (15°C) | 67°F (20°C) | 4.0" | 0.0 | 0.3 |
| September | 69°F (21°C) | 51°F (10°C) | 60°F (16°C) | 4.2" | 0.3 | 0.0 |
| October | 58°F (14°C) | 41°F (5°C) | 49°F (9°C) | 4.7" | 7.0 | 0.0 |
| November | 45°F (7°C) | 30°F (-1°C) | 38°F (3°C) | 3.5" | 19.4 | 0.0 |
| December | 34°F (1°C) | 21°F (-6°C) | 28°F (-2°C) | 3.8" | 27.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.0"
13.4 days with precipitation
February 2.6"
11.0 days with precipitation
March 3.7"
13.7 days with precipitation
April 4.4"
12.1 days with precipitation
May 4.4"
14.6 days with precipitation
June 4.5"
11.4 days with precipitation
July 4.3"
12.1 days with precipitation
August 4.0"
11.4 days with precipitation
September 4.2"
11.2 days with precipitation
October 4.7"
11.2 days with precipitation
November 3.5"
13.0 days with precipitation
December 3.8"
12.7 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 11
50% probability date
Last Spring Freeze
May 1
50% probability date
Growing Season
163 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,197
Higher = more heating needed
Cooling Degree Days
348
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Grafton's climate means for you
Grafton runs 46°F a year - peaking in July, coldest in January.
- Gardeners get about 163 frost-free days, with the last spring freeze near May 1 - plan the planting calendar around it, not the regional average.
- Energy bills track 7,197 heating and 348 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: Grafton, NY
The NOAA 1991–2020 climate normals describe Grafton, New York as a location with an annual average temperature of 46°F, ranging from a mean daily high of 55°F to a mean daily low of 37°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00303360, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Grafton receives roughly 47.1 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 163 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near May 1 and the first fall freeze near October 11. For energy use, 7,197 heating degree days and 348 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Grafton scores 64/100 (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 Grafton, NY? ▼
The average annual temperature in Grafton, New York is 46°F. The warmest month averages 78°F (25°C) and the coldest averages 14°F (-10°C).
How much rain does Grafton get? ▼
Grafton receives 47.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Grafton? ▼
Grafton has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Grafton? ▼
Grafton has approximately 163 frost-free days per year, with the last spring freeze around May 1 and the first fall freeze around October 11.
How much energy does heating and cooling require in Grafton? ▼
Grafton has 7,197 heating degree days and 348 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 Grafton climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00303360 near Grafton.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00303360. 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.