Climate Comfort Score
54/100
Moderate
NOAA 1991–2020 normals 50°F annual avg Public-domain federal data
Ansonia, CT Climate
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 50°F
- Avg annual temp
- 54/100
- Comfort score
- 52.0"
- Annual precip
- 175d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Ansonia
Ansonia, Connecticut averages 50°F a year and scores 54/100 on the comfort index - moderate, milder than 27% of U.S. cities.
- 50°F
- yearly average temperature, NOAA normal
- 54/100
- comfort score, milder than 27% of U.S. cities
- 52.0"
- precipitation, annual total
- 175 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
50°F (10°C)
Avg High
60°F
Avg Low
40°F
Annual Precip
52.0"
Comfort Score
54/100
Moderate
Avg Annual Temperature
50°F
30-year mean (NOAA NCEI)
Annual Precipitation
52.0"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Ansonia) 54.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Ansonia area.
How Ansonia compares to every U.S. city
Ansonia'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 Ansonia
MethodologyHow the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Ansonia 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 | 36°F (2°C) | 18°F (-8°C) | 27°F (-3°C) | 4.0" | 26.9 | 0.0 |
| February | 38°F (3°C) | 19°F (-7°C) | 29°F (-2°C) | 3.6" | 25.1 | 0.0 |
| March | 47°F (8°C) | 27°F (-3°C) | 37°F (3°C) | 4.7" | 23.5 | 0.0 |
| April | 58°F (15°C) | 38°F (3°C) | 48°F (9°C) | 4.7" | 8.2 | 0.0 |
| May | 69°F (21°C) | 47°F (8°C) | 58°F (15°C) | 4.0" | 0.1 | 0.1 |
| June | 77°F (25°C) | 58°F (14°C) | 68°F (20°C) | 3.9" | 0.0 | 1.3 |
| July | 82°F (28°C) | 63°F (17°C) | 73°F (23°C) | 4.3" | 0.0 | 4.4 |
| August | 82°F (28°C) | 62°F (17°C) | 72°F (22°C) | 4.6" | 0.0 | 2.5 |
| September | 75°F (24°C) | 54°F (12°C) | 64°F (18°C) | 4.4" | 0.1 | 1.4 |
| October | 63°F (17°C) | 41°F (5°C) | 52°F (11°C) | 5.0" | 3.4 | 0.0 |
| November | 52°F (11°C) | 32°F (0°C) | 42°F (5°C) | 4.2" | 18.8 | 0.0 |
| December | 41°F (5°C) | 23°F (-5°C) | 32°F (0°C) | 4.6" | 24.1 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 4.0"
9.4 days with precipitation
February 3.6"
7.4 days with precipitation
March 4.7"
9.0 days with precipitation
April 4.7"
10.1 days with precipitation
May 4.0"
10.6 days with precipitation
June 3.9"
9.9 days with precipitation
July 4.3"
8.5 days with precipitation
August 4.6"
8.2 days with precipitation
September 4.4"
8.0 days with precipitation
October 5.0"
8.1 days with precipitation
November 4.2"
8.2 days with precipitation
December 4.6"
9.0 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 17
50% probability date
Last Spring Freeze
April 25
50% probability date
Growing Season
175 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,070
Higher = more heating needed
Cooling Degree Days
686
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Ansonia's climate means for you
Ansonia runs 50°F a year - peaking in July, coldest in January.
- Gardeners get about 175 frost-free days, with the last spring freeze near April 25 - plan the planting calendar around it, not the regional average.
- Energy bills track 6,070 heating and 686 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: Ansonia, CT
Based on station USC00060128 feeding NOAA's 1991–2020 climate normals, Ansonia, Connecticut averages 50°F a year, ranging from a mean daily high of 60°F to a mean daily low of 40°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Anyone planning to live, garden, or travel in Ansonia should weigh precipitation alongside temperature: the annual average runs 52.0 inches, predominantly as rainfall. The frost-free season averages 175 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 25 and the first fall freeze near October 17. And on the energy front, 6,070 heating degree days and 686 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Ansonia scores 54/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Ansonia, CT? ▼
The average annual temperature in Ansonia, Connecticut is 50°F. The warmest month averages 82°F (28°C) and the coldest averages 18°F (-8°C).
How much rain does Ansonia get? ▼
Ansonia receives 52.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Ansonia? ▼
Ansonia 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 Ansonia? ▼
Ansonia has approximately 175 frost-free days per year, with the last spring freeze around April 25 and the first fall freeze around October 17.
How much energy does heating and cooling require in Ansonia? ▼
Ansonia has 6,070 heating degree days and 686 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 Ansonia climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00060128 near Ansonia.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00060128. 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.