Boston, VA Climate: Temperature by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Boston's primary NOAA station, BOSTON 4 SE.
The climate verdict for Boston
Boston, Virginia has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 54°F. July is the warmest month at 75°F and January the coldest at 33°F.
- 54°F
- yearly average temperature, NOAA normal
- 184 days
- frost-free days per growing season
Boston: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00440860 · Boston, VA 54°F mean
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-UNK · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-PART
- TEMP-COOL 54°F
- RANK-MID #3,979
- PHOTO-FINISH ≈ St Johns Indust…
- PRCP-UNK Rain n/a
- SWING-MID 42°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 4,837 HDD
- STN-1 USC00440860
- BOOK-PART 4/6 fields
Nearest mean-temperature peer: St Johns Industrial, AZ (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every VA station list.
- Boston (this station) 54°F
- Cold Staunton Wtp, VA 54°F
- Hot Clayton, NM 54°F
- Near St Johns Indust…, AZ 54°F
- Near Walla Walla Rgnl, WA 54°F
Climate Living Index · Boston
Boston: 58/100 · grade C
Boston publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Boston, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 124 calendar days | 62/100 · C |
| Annual temperature balance | 54.2°F · 13.3° from 67.5°F | 57/100 · C |
| Frost-free season | 184 days/year | 53/100 · D |
Boston · 2026-08-04 · NOAA NCEI Climate Normals · method .
National standing · heating-led station
Where Boston sits across the climate record
Available NOAA 1991–2020 fields for Boston are ranked only against stations that publish the same field, missing metrics stay blank rather than estimated.
- Annual temperature
- 58th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Seasonal temperature swing
- 42nd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 44°F (6°C) | 23°F (-5°C) | 33°F (1°C) | N/A | 26.4 | 0.0 |
| February | 48°F (9°C) | 25°F (-4°C) | 36°F (2°C) | N/A | 24.4 | 0.0 |
| March | 55°F (13°C) | 31°F (0°C) | 43°F (6°C) | N/A | 19.3 | 0.0 |
| April | 67°F (19°C) | 41°F (5°C) | 54°F (12°C) | N/A | 4.6 | 0.4 |
| May | 74°F (24°C) | 50°F (10°C) | 62°F (17°C) | N/A | 0.4 | 0.3 |
| June | 82°F (28°C) | 59°F (15°C) | 71°F (22°C) | N/A | 0.0 | 4.5 |
| July | 86°F (30°C) | 64°F (18°C) | 75°F (24°C) | N/A | 0.0 | 8.5 |
| August | 84°F (29°C) | 62°F (17°C) | 73°F (23°C) | N/A | 0.0 | 6.5 |
| September | 78°F (25°C) | 55°F (13°C) | 66°F (19°C) | N/A | 0.0 | 2.0 |
| October | 67°F (20°C) | 43°F (6°C) | 55°F (13°C) | N/A | 4.6 | 0.2 |
| November | 57°F (14°C) | 33°F (0°C) | 45°F (7°C) | N/A | 16.5 | 0.0 |
| December | 48°F (9°C) | 26°F (-3°C) | 37°F (3°C) | N/A | 24.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 11, short of 90°F on every date, while 124 dates carry a normal low at or below freezing, the coldest 23°F near January 15.
The freezing stretch
The normal low stays at or below 32°F into March 19, then returns to freezing around November 17, covering 124 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
The widest day
April 21 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Boston.
Monthly Precipitation
Average monthly rainfall
Frost Dates & Growing Season
First Fall Freeze
October 22
50% probability date
Last Spring Freeze
April 21
50% probability date
Growing Season
184 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,837
Higher = more heating needed
Cooling Degree Days
936
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside VA closest to Boston on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (54°F here).
- Atchison, KS 54°F · 0.0°F off
- Glennville, CA 54°F · 0.0°F off
- Kim, CO 54°F · 0.0°F off
- Mexico, MO 54°F · 0.0°F off
Data-derived climate profile
How Boston's climate pattern fits together
heating led · mid swing
Boston's energy balance leans toward cold weather: 4,837 annual heating degree days against 936 for cooling. Its 41.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
Boston's frost-free season lasts about 184 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Boston's middle-range seasonal profile. The measured spread is 41.6°F. The annual average is 54°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
A moisture-range label is withheld because Boston's annual precipitation total is unavailable. Monthly source values remain visible where NOAA provides them, and no annual amount is reconstructed from incomplete data.
These labels group NOAA 1991-2020 normals from Boston's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Boston, not an official NOAA class or a year-ahead forecast.
Questions about Boston's climate
How cold does Boston get in winter? ▼
How much energy does heating and cooling require in Boston? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Boston's primary station: BOSTON 4 SE (USC00440860). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 5108675), not an incorporated municipality. Match rule for Boston: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Boston comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.