Climate Comfort Score
54/100
Moderate
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data
Hartford Bradley, CT Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 51°F
- Avg annual temp
- 54/100
- Comfort score
- 47.0"
- Annual precip
- 178d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Hartford Bradley
Hartford Bradley, Connecticut averages 51°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.
- 51°F
- annual average temperature (NOAA normal)
- 54/100
- comfort score, milder than 27% of U.S. cities
- 47.0"
- annual precipitation · 52" snow
- 178 days
- frost-free days per growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
51°F (11°C)
Avg High
61°F
Avg Low
41°F
Annual Precip
47.0"
Annual Snow
51.7"
Comfort Score
54/100
Moderate
Avg Annual Temperature
51°F
30-year mean (NOAA NCEI)
Annual Precipitation
47.0"
Plus 51.7" of snow
Comfort score vs national 100-point ceiling (Hartford Bradley) 54.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Hartford Bradley area.
How Hartford Bradley compares to every U.S. city
Hartford Bradley's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 Top 73% higher than 27% 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 Hartford Bradley
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Hartford Bradley'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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 35°F (2°C) | 19°F (-7°C) | 27°F (-3°C) | 3.3" | 14.2" | 27.2 | 0.0 |
| February | 39°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 3.1" | 14.8" | 24.8 | 0.0 |
| March | 47°F (8°C) | 28°F (-2°C) | 38°F (3°C) | 3.8" | 9.4" | 21.4 | 0.0 |
| April | 61°F (16°C) | 38°F (4°C) | 50°F (10°C) | 3.9" | 1.1" | 7.2 | 0.3 |
| May | 72°F (22°C) | 48°F (9°C) | 60°F (16°C) | 3.8" | 0.0" | 0.4 | 1.4 |
| June | 80°F (27°C) | 58°F (14°C) | 69°F (21°C) | 4.3" | 0.0" | 0.0 | 3.5 |
| July | 85°F (30°C) | 63°F (17°C) | 74°F (24°C) | 4.2" | 0.0" | 0.0 | 8.1 |
| August | 83°F (29°C) | 62°F (17°C) | 73°F (23°C) | 4.2" | 0.0" | 0.0 | 5.1 |
| September | 76°F (24°C) | 54°F (12°C) | 65°F (18°C) | 4.4" | 0.0" | 0.1 | 1.2 |
| October | 64°F (18°C) | 42°F (6°C) | 53°F (12°C) | 4.5" | 0.7" | 4.1 | 0.0 |
| November | 52°F (11°C) | 33°F (1°C) | 42°F (6°C) | 3.5" | 1.4" | 15.4 | 0.0 |
| December | 41°F (5°C) | 25°F (-4°C) | 33°F (0°C) | 4.1" | 10.1" | 25.4 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 3.3"
Snow: 14.2"
10.9 days with precipitation
February 3.1"
Snow: 14.8"
10.5 days with precipitation
March 3.8"
Snow: 9.4"
11.2 days with precipitation
April 3.9"
Snow: 1.1"
11.5 days with precipitation
May 3.8"
12.3 days with precipitation
June 4.3"
11.8 days with precipitation
July 4.2"
10.7 days with precipitation
August 4.2"
10.4 days with precipitation
September 4.4"
9.2 days with precipitation
October 4.5"
Snow: 0.7"
10.5 days with precipitation
November 3.5"
Snow: 1.4"
9.9 days with precipitation
December 4.1"
Snow: 10.1"
11.5 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 16
50% probability date
Last Spring Freeze
April 21
50% probability date
Growing Season
178 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,883
Higher = more heating needed
Cooling Degree Days
819
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 61% | 8.2 | 23% | 33% |
| February | 60% | 9.1 | 19% | 38% |
| March | 56% | 9.1 | 22% | 37% |
| April | 56% | 8.5 | 21% | 34% |
| May | 66% | 7.6 | 18% | 34% |
| June | 67% | 6.8 | 20% | 21% |
| July | 69% | 6.2 | 21% | 22% |
| August | 70% | 6.3 | 23% | 19% |
| September | 74% | 6.6 | 27% | 27% |
| October | 67% | 7.7 | 26% | 33% |
| November | 67% | 7.7 | 19% | 36% |
| December | 66% | 8.2 | 20% | 36% |
What Hartford Bradley's climate means for you
Hartford Bradley runs 51°F a year - peaking in July, coldest in January.
- Gardeners get about 178 frost-free days, with the last spring freeze near April 21 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,883 heating and 819 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: Hartford Bradley, CT
In Hartford Bradley, Connecticut, the NOAA 1991–2020 climate normals put the annual average temperature at 51°F, ranging from a mean daily high of 61°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00014740, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Anyone planning to live, garden, or travel in Hartford Bradley should weigh precipitation alongside temperature: the annual average runs 47.0 inches, with 51.7 inches typically falling as snow. The frost-free season averages 178 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 21 and the first fall freeze near October 16. And on the energy front, 5,883 heating degree days and 819 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Hartford Bradley scores 54/100 (Moderate), 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 Hartford Bradley, CT? ▼
The average annual temperature in Hartford Bradley, Connecticut is 51°F. The warmest month averages 85°F (30°C) and the coldest averages 19°F (-7°C).
How much rain does Hartford Bradley get? ▼
Hartford Bradley receives 47.0 inches of precipitation annually, including 51.7 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Hartford Bradley? ▼
Hartford Bradley has a climate comfort score of 54/100 (Moderate), milder than 27% of U.S. cities in the PlainClimate database.
When is the growing season in Hartford Bradley? ▼
Hartford Bradley has approximately 178 frost-free days per year, with the last spring freeze around April 21 and the first fall freeze around October 16.
How much energy does heating and cooling require in Hartford Bradley? ▼
Hartford Bradley has 5,883 heating degree days and 819 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 Hartford Bradley climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00014740 near Hartford Bradley.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00014740. 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.