Hopkinton Lake, NH Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Hopkinton Lake's primary NOAA station, HOPKINTON LAKE.
The climate verdict for Hopkinton Lake
Water is the standout signal in Hopkinton Lake, New Hampshire: 48.0 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 46°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 46°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 48.0"
- precipitation, annual total
- 148 days
- frost-free growing season
Hopkinton Lake: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00274218 · Hopkinton Lake, NH 46°F mean · 48.0" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 46°F
- RANK-COOL #1,647
- PHOTO-FINISH ≈ Lead
- PRCP-MID 48.0"
- SWING-WIDE 48°F
- COMF-MID 64/100
- LOAD-HEAT 7,215 HDD
- STN-1 USC00274218
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Lead, SD (+ 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 NH station list.
- Hopkinton Lake (this station) 46°F
- Hot E Jordan, MI 46°F
- Near Lead, SD 46°F
- Near Hart, MI 46°F
- Near Ithaca Cornell…, NY 46°F
Climate Living Index · Hopkinton Lake
Hopkinton Lake: 33/100 · grade F
Hopkinton Lake publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Hopkinton Lake, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 48.0 in · 13.0 from 35 in | 54/100 · D |
| Normal heat + freeze calendar | 167 calendar days | 34/100 · F |
| Annual temperature balance | 46.3°F · 21.2° from 67.5°F | 24/100 · F |
| Frost-free season | 148 days/year | 24/100 · F |
Hopkinton Lake · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Hopkinton Lake is a continental Köppen climate: Dfb
Coldest-month mean 22.3°F and warmest-month mean 70.3°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 70.3°F
- Coldest month
- 22.3°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Hopkinton Lake sits across the climate record
Three NOAA fields for Hopkinton Lake's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 76%
- Among 6,861 stations, Hopkinton Lake sits in the cooler third of annual means.
- Annual precipitation
- Top 24% wettest
- Hopkinton Lake's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 73%
- Warmest-to-coldest month gap for Hopkinton Lake is large versus 6,861 complete station-years.
How Hopkinton Lake compares across U.S. station-mapped locations
Hopkinton Lake's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 49th percentile score exceeds 49% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 32°F (0°C) | 13°F (-11°C) | 22°F (-5°C) | 3.3" | 30.6 | 0.0 |
| February | 36°F (2°C) | 11°F (-12°C) | 23°F (-5°C) | 3.1" | 27.4 | 0.0 |
| March | 43°F (6°C) | 20°F (-7°C) | 32°F (0°C) | 3.8" | 27.4 | 0.0 |
| April | 57°F (14°C) | 32°F (0°C) | 44°F (7°C) | 3.9" | 18.7 | 0.0 |
| May | 69°F (20°C) | 43°F (6°C) | 56°F (13°C) | 3.7" | 1.6 | 0.4 |
| June | 77°F (25°C) | 52°F (11°C) | 65°F (18°C) | 4.5" | 0.1 | 2.6 |
| July | 83°F (28°C) | 58°F (14°C) | 70°F (21°C) | 4.3" | 0.0 | 5.5 |
| August | 81°F (27°C) | 56°F (13°C) | 68°F (20°C) | 4.0" | 0.0 | 1.9 |
| September | 74°F (23°C) | 47°F (8°C) | 61°F (16°C) | 4.0" | 2.5 | 0.4 |
| October | 60°F (16°C) | 37°F (3°C) | 48°F (9°C) | 5.4" | 8.8 | 0.0 |
| November | 47°F (9°C) | 28°F (-2°C) | 38°F (3°C) | 3.9" | 25.0 | 0.0 |
| December | 37°F (3°C) | 19°F (-7°C) | 28°F (-2°C) | 4.3" | 29.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 83°F around July 16, short of 90°F on every date, while 167 dates carry a normal low at or below freezing, the coldest 10°F near February 3.
The freezing stretch
The normal low stays at or below 32°F into April 16, then returns to freezing around November 2, covering 167 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
September 9 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 Hopkinton Lake.
Monthly Precipitation
Average monthly rainfall
Hopkinton Lake spreads its precipitation across the year
Neither half of the year dominates here: June through August take 27% of the annual total and December through February 22%, with neither reaching the 35% that would mark a distinct wet season. Hopkinton Lake has no dry season to plan around, though it does carry a wide 48°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: October averages 5.4" and February 3.1". The three wettest months together take 30% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Frost Dates & Growing Season
First Fall Freeze
October 1
50% probability date
Last Spring Freeze
May 6
50% probability date
Growing Season
148 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,215
Higher = more heating needed
Cooling Degree Days
429
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NH closest to Hopkinton Lake 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 (46°F here).
- Binghamton, NY 46°F · 0.0°F off
- Chewelah, WA 46°F · 0.0°F off
- Delanson, NY 46°F · 0.0°F off
- Douglas, WY 46°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (48.0" here), excluding temperature-peer places.
- Brenham, TX 48.0" · 0.0" off
- Elizabethton, TN 48.0" · 0.0" off
- Vernonia, OR 48.0" · 0.0" off
- Beverly, MA 48.0" · 0.0" off
Data-derived climate profile
How Hopkinton Lake's climate pattern fits together
heating led · wet · mid swing
Hopkinton Lake's energy balance leans toward cold weather: 7,215 annual heating degree days against 429 for cooling. Its 48.0°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 148 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
July and January mark the typical warm and cold ends of the calendar in Hopkinton Lake's middle-range seasonal profile. The measured spread is 48.0°F. The annual average is 46°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Hopkinton Lake carries 48.0 inches of precipitation in a normal year, inside PlainClimate's wet range. Snowfall is not added to the interpretation because its annual value is missing. That distinction matters because a wet annual total can arrive as rain, snow, or a mixture at different times.
These labels group NOAA 1991-2020 normals from Hopkinton Lake'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 Hopkinton Lake, not an official NOAA class or a year-ahead forecast.
Questions about Hopkinton Lake's climate
How much rain does Hopkinton Lake get? ▼
How cold does Hopkinton Lake get in winter? ▼
How much energy does heating and cooling require in Hopkinton Lake? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Hopkinton Lake's primary station: HOPKINTON LAKE (USC00274218). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Hopkinton Lake; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Hopkinton Lake 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.