Nashua Cwsu, NH Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Nashua Cwsu's primary NOAA station, NASHUA CWSU.
The climate verdict for Nashua Cwsu
Water is the standout signal in Nashua Cwsu, New Hampshire: 46.3 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 49°F. Its climate comfort score of 64/100 (good) lands mid-pack nationally, exceeding 49% of station-mapped location scores.
- 49°F
- yearly average temperature, NOAA normal
- 64/100
- comfort score, above 49% of station-mapped location scores
- 46.3"
- annual precipitation
- 162 days
- frost-free growing season
Nashua Cwsu: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00275703 · Nashua Cwsu, NH 49°F mean · 46.3" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 49°F
- RANK-COOL #2,333
- PHOTO-FINISH ≈ Pocatello
- PRCP-MID 46.3"
- SWING-WIDE 49°F
- COMF-MID 64/100
- LOAD-HEAT 6,593 HDD
- STN-1 USC00275703
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Pocatello, ID (+ 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.
- Nashua Cwsu (this station) 49°F
- Hot Holyoke, CO 49°F
- Near Pocatello, ID 49°F
- Near Cutler Dam, UT 49°F
- Near Leroy, CO 49°F
Climate Living Index · Nashua Cwsu
Nashua Cwsu: 43/100 · grade D
Nashua Cwsu publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Nashua Cwsu, not an official NOAA rating. Rankings still use Comfort Score 64/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 46.3 in · 11.3 from 35 in | 60/100 · C |
| Normal heat + freeze calendar | 155 calendar days | 43/100 · D |
| Annual temperature balance | 48.7°F · 18.8° from 67.5°F | 35/100 · F |
| Frost-free season | 162 days/year | 35/100 · F |
Nashua Cwsu · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Nashua Cwsu is a continental Köppen climate: Dfa
Coldest-month mean 24.2°F and warmest-month mean 73.1°F place this station in continental, no dry season, hot summer climates (Dfa). Class Dfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, hot summer.
- Köppen code
- Dfa
- Group
- Continental
- Warmest month
- 73.1°F
- Coldest month
- 24.2°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 Nashua Cwsu sits across the climate record
Three NOAA fields for Nashua Cwsu's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 34th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Top 29% wettest
- Nashua Cwsu's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 77%
- Warmest-to-coldest month gap for Nashua Cwsu is large versus 6,861 complete station-years.
How Nashua Cwsu compares across U.S. station-mapped locations
Nashua Cwsu'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 | 35°F (1°C) | 14°F (-10°C) | 24°F (-4°C) | 3.0" | 29.7 | 0.0 |
| February | 38°F (3°C) | 16°F (-9°C) | 27°F (-3°C) | 3.1" | 26.3 | 0.0 |
| March | 45°F (7°C) | 24°F (-4°C) | 35°F (2°C) | 4.1" | 24.2 | 0.0 |
| April | 58°F (15°C) | 35°F (2°C) | 47°F (8°C) | 3.9" | 13.0 | 0.0 |
| May | 69°F (21°C) | 46°F (8°C) | 58°F (14°C) | 3.6" | 1.0 | 2.0 |
| June | 79°F (26°C) | 56°F (13°C) | 67°F (20°C) | 4.2" | 0.0 | 3.0 |
| July | 85°F (29°C) | 62°F (16°C) | 73°F (23°C) | 3.6" | 0.0 | 11.8 |
| August | 83°F (28°C) | 60°F (15°C) | 71°F (22°C) | 3.7" | 0.0 | 6.7 |
| September | 75°F (24°C) | 52°F (11°C) | 64°F (18°C) | 4.2" | 0.6 | 3.0 |
| October | 62°F (17°C) | 39°F (4°C) | 51°F (10°C) | 4.7" | 6.7 | 0.0 |
| November | 51°F (10°C) | 29°F (-2°C) | 40°F (4°C) | 3.7" | 20.6 | 0.0 |
| December | 40°F (4°C) | 20°F (-7°C) | 30°F (-1°C) | 4.5" | 27.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 13, short of 90°F on every date, while 155 dates carry a normal low at or below freezing, the coldest 13°F near January 22.
The freezing stretch
The normal low stays at or below 32°F into April 8, then returns to freezing around November 6, covering 155 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 30 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Nashua Cwsu.
Monthly Precipitation
Average monthly rainfall
Nashua Cwsu spreads its precipitation across the year
Neither half of the year dominates here: June through August take 25% of the annual total and December through February 23%, with neither reaching the 35% that would mark a distinct wet season. Nashua Cwsu has no dry season to plan around, though it does carry a wide 48.9°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: October averages 4.7" and January 3.0". The three wettest months together take 29% 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 8
50% probability date
Last Spring Freeze
April 29
50% probability date
Growing Season
162 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,593
Higher = more heating needed
Cooling Degree Days
704
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NH closest to Nashua Cwsu 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 (49°F here).
- Clarkson, NE 49°F · 0.0°F off
- Cuba, NM 49°F · 0.0°F off
- Dove Creek, CO 49°F · 0.0°F off
- Guernsey, WY 49°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (46.3" here), excluding temperature-peer places.
- Blackville, SC 46.2" · 0.0" off
- Clewiston, FL 46.2" · 0.0" off
- Teterboro, NJ 46.3" · 0.0" off
- Wedgefield, SC 46.2" · 0.0" off
Data-derived climate profile
How Nashua Cwsu's climate pattern fits together
heating led · wet · mid swing
Nashua Cwsu's energy balance leans toward cold weather: 6,593 annual heating degree days against 704 for cooling. Its 48.9°F seasonal range still makes the monthly rows more useful than the annual average alone.
Nashua Cwsu's frost-free season lasts about 162 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 Nashua Cwsu's middle-range seasonal profile. The measured spread is 48.9°F. The annual average is 49°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Alongside its heating load, Nashua Cwsu carries 46.3 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 Nashua Cwsu'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 Nashua Cwsu, not an official NOAA class or a year-ahead forecast.
Questions about Nashua Cwsu's climate
How much rain does Nashua Cwsu get? ▼
How cold does Nashua Cwsu get in winter? ▼
How much energy does heating and cooling require in Nashua Cwsu? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Nashua Cwsu's primary station: NASHUA CWSU (USC00275703). 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 Nashua Cwsu; 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 Nashua Cwsu 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.