Climate Comfort Score
68/100
Good
NOAA 1991–2020 normals 51°F annual avg Public-domain federal data
Jamaica Plain, MA Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 51°F
- Avg annual temp
- 68/100
- Comfort score
- 49.4"
- Annual precip
- 187d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Jamaica Plain
Jamaica Plain, Massachusetts averages 51°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.
- 51°F
- annual average temperature (NOAA normal)
- 68/100
- comfort score, milder than 58% of U.S. cities
- 49.4"
- yearly precipitation total
- 187 days
- growing season, frost-free days
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
49.4"
Comfort Score
68/100
Good
Avg Annual Temperature
51°F
30-year mean (NOAA NCEI)
Annual Precipitation
49.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Jamaica Plain) 68.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Jamaica Plain area.
How Jamaica Plain compares to every U.S. city
Jamaica Plain's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 42% higher than 58% 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 Jamaica Plain
MethodologyZooming out from Jamaica Plain's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.
- 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 | 37°F (3°C) | 19°F (-7°C) | 28°F (-2°C) | 3.9" | 27.7 | 0.0 |
| February | 40°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 3.6" | 24.3 | 0.0 |
| March | 47°F (8°C) | 28°F (-2°C) | 38°F (3°C) | 4.5" | 20.3 | 0.0 |
| April | 59°F (15°C) | 38°F (3°C) | 49°F (9°C) | 4.3" | 6.8 | 0.2 |
| May | 69°F (21°C) | 48°F (9°C) | 59°F (15°C) | 3.6" | 0.2 | 1.2 |
| June | 79°F (26°C) | 58°F (14°C) | 68°F (20°C) | 4.2" | 0.0 | 3.1 |
| July | 85°F (29°C) | 64°F (18°C) | 74°F (24°C) | 3.5" | 0.0 | 8.5 |
| August | 83°F (28°C) | 63°F (17°C) | 73°F (23°C) | 3.7" | 0.0 | 5.9 |
| September | 76°F (24°C) | 55°F (13°C) | 65°F (18°C) | 4.0" | 0.0 | 1.3 |
| October | 64°F (18°C) | 43°F (6°C) | 53°F (12°C) | 5.0" | 3.1 | 0.0 |
| November | 53°F (11°C) | 34°F (1°C) | 43°F (6°C) | 4.0" | 14.1 | 0.0 |
| December | 42°F (6°C) | 26°F (-4°C) | 34°F (1°C) | 5.1" | 24.3 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 3.9"
February 3.6"
March 4.5"
April 4.3"
May 3.6"
June 4.2"
July 3.5"
August 3.7"
September 4.0"
October 5.0"
November 4.0"
December 5.1"
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 19
50% probability date
Growing Season
187 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,811
Higher = more heating needed
Cooling Degree Days
827
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Jamaica Plain's climate means for you
Jamaica Plain runs 51°F a year - peaking in July, coldest in January.
- Gardeners get about 187 frost-free days, with the last spring freeze near April 19 - plan the planting calendar around it, not the regional average.
- Energy bills track 5,811 heating and 827 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: Jamaica Plain, MA
The NOAA 1991–2020 climate normals describe Jamaica Plain, Massachusetts as a location with an annual average temperature of 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. These thirty-year averages, computed from station USC00193890, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Jamaica Plain sees about 49.4 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 187 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 19 and the first fall freeze near October 23. On the energy side, 5,811 heating degree days and 827 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Jamaica Plain scores 68/100 (Good), 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 Jamaica Plain, MA? ▼
The average annual temperature in Jamaica Plain, Massachusetts is 51°F. The warmest month averages 85°F (29°C) and the coldest averages 19°F (-7°C).
How much rain does Jamaica Plain get? ▼
Jamaica Plain receives 49.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Jamaica Plain? ▼
Jamaica Plain has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Jamaica Plain? ▼
Jamaica Plain has approximately 187 frost-free days per year, with the last spring freeze around April 19 and the first fall freeze around October 23.
How much energy does heating and cooling require in Jamaica Plain? ▼
Jamaica Plain has 5,811 heating degree days and 827 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 Jamaica Plain climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00193890 near Jamaica Plain.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00193890. 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.