Hanover, NH Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Hanover's primary NOAA station, HANOVER.
The climate verdict for Hanover
Hanover, New Hampshire has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 48°F. At 54/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 48°F
- average temperature, NOAA 1991-2020 normal
- 54/100
- comfort score, above 31% of station-mapped location scores
- 40.1"
- annual precipitation · 61" snow
- 165 days
- frost-free days per growing season
Hanover: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00273850 · Hanover, NH 48°F mean · 40.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 48°F
- RANK-COOL #2,127
- PHOTO-FINISH ≈ Hudson
- PRCP-MID 40.1"
- SWING-WIDE 51°F
- COMF-LOW 54/100
- LOAD-HEAT 6,827 HDD
- STN-1 USC00273850
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Hudson, NH (+ 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.
- Hanover (this station) 48°F
- Cold Shabbona, IL 48°F
- Hot Midland, MI 48°F
- Near Hudson, NH 48°F
- Near Ellsworth, NE 48°F
Climate Living Index · Hanover
Hanover: 44/100 · grade D
Hanover publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Hanover, not an official NOAA rating. Rankings still use Comfort Score 54/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 40.1 in · 5.1 from 35 in | 82/100 · B |
| Normal heat + freeze calendar | 149 calendar days | 47/100 · D |
| Frost-free season | 165 days/year | 38/100 · F |
| Annual temperature balance | 47.9°F · 19.6° from 67.5°F | 31/100 · F |
| Snowfall burden | 60.6 inches/year | 15/100 · F |
Hanover · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Hanover is a continental Köppen climate: Dfa
Coldest-month mean 21.6°F and warmest-month mean 72.1°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
- 72.1°F
- Coldest month
- 21.6°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 Hanover sits across the climate record
Three NOAA fields for Hanover's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 31st percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 58th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 82%
- Warmest-to-coldest month gap for Hanover is large versus 6,861 complete station-years.
How Hanover compares across U.S. station-mapped locations
Hanover's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 31st percentile score exceeds 31% 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%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 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
Hanover's measured station temperature trend
MethodologyAcross 133 complete annual observations from 1835 to 2024, HANOVER warmed at a fitted rate of 0.12°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Hanover primary station fitted change +0.12 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 30°F (-1°C) | 13°F (-11°C) | 22°F (-6°C) | 2.7" | 16.4" | 29.7 | 0.0 |
| February | 34°F (1°C) | 14°F (-10°C) | 24°F (-4°C) | 2.4" | 13.1" | 26.7 | 0.0 |
| March | 44°F (7°C) | 24°F (-5°C) | 34°F (1°C) | 3.0" | 13.5" | 26.0 | 0.0 |
| April | 58°F (15°C) | 35°F (2°C) | 47°F (8°C) | 3.2" | 1.9" | 13.9 | 0.1 |
| May | 71°F (22°C) | 46°F (8°C) | 59°F (15°C) | 3.3" | 0.0" | 1.6 | 0.5 |
| June | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 3.7" | 0.0" | 0.0 | 1.8 |
| July | 83°F (29°C) | 61°F (16°C) | 72°F (22°C) | 4.5" | 0.0" | 0.0 | 3.8 |
| August | 82°F (28°C) | 59°F (15°C) | 71°F (21°C) | 3.5" | 0.0" | 0.0 | 1.8 |
| September | 74°F (23°C) | 52°F (11°C) | 63°F (17°C) | 3.3" | 0.0" | 0.4 | 0.6 |
| October | 60°F (16°C) | 40°F (5°C) | 50°F (10°C) | 4.0" | 0.1" | 7.3 | 0.0 |
| November | 47°F (8°C) | 31°F (-1°C) | 39°F (4°C) | 3.0" | 2.2" | 19.4 | 0.0 |
| December | 36°F (2°C) | 20°F (-6°C) | 28°F (-2°C) | 3.4" | 13.4" | 27.4 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 84°F around July 13, short of 90°F on every date, while 149 dates carry a normal low at or below freezing, the coldest 12°F near January 26.
The freezing stretch
The normal low stays at or below 32°F into April 8, then returns to freezing around November 12, covering 149 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.
Where the wet dates fall
The likeliest wet date is July 9, when 42% of years recorded at least a hundredth of an inch. The driest is February 7 at 31%. Summed across the calendar, that is about 132 wet dates a year.
The widest day
May 7 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 Hanover.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 16.4"
10.8 days with precipitation
Snow: 13.1"
8.9 days with precipitation
Snow: 13.5"
9.7 days with precipitation
Snow: 1.9"
10.7 days with precipitation
11.7 days with precipitation
12.1 days with precipitation
12.6 days with precipitation
10.7 days with precipitation
11.3 days with precipitation
Snow: 0.1"
12.2 days with precipitation
Snow: 2.2"
10.2 days with precipitation
Snow: 13.4"
10.7 days with precipitation
Hanover spreads its precipitation across the year
Neither half of the year dominates here: June through August take 29% of the annual total and December through February 21%, with neither reaching the 35% that would mark a distinct wet season. Hanover has no dry season to plan around, though it does carry a wide 50.5°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: July averages 4.5" and February 2.4". 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.
How Hanover's precipitation splits across the calendar
About 132 days a year record measurable precipitation here, carrying 40.1" between them, or roughly 0.31 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Winter brings real snow to Hanover
Hanover averages 60.6 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 28 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 60.6 inches of depth.
- Days recording measurable snow: about 28 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 15% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 13
50% probability date
Last Spring Freeze
May 1
50% probability date
Growing Season
165 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,827
Higher = more heating needed
Cooling Degree Days
622
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NH closest to Hanover 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 (48°F here).
- Arnold, NE 48°F · 0.0°F off
- Avon, NY 48°F · 0.0°F off
- Belle Fourche, SD 48°F · 0.0°F off
- Cascade, IA 48°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (40.1" here), excluding temperature-peer places.
- Anamosa, IA 40.1" · 0.0" off
- Upper Sandusky, OH 40.2" · 0.0" off
- Angelica, NY 40.2" · 0.0" off
- Lancaster, OH 40.2" · 0.0" off
Snow and freeze rhythm
When cold and snow define Hanover
heating led · moderate · mid swing
Hanover's energy balance leans toward cold weather: 6,827 annual heating degree days against 622 for cooling. Its 50.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Hanover's frost-free season lasts about 165 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Hanover coldest normal
January
Averaging 22°F (-6°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Hanover typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Hanover snow peak
January
Hanover averages 60.6 inches of snow a year, with January the snowiest month on the normals.
Questions about Hanover's climate
How much snow does Hanover get? ▼
How cold does Hanover get in winter? ▼
How much energy does heating and cooling require in Hanover? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Hanover's primary station: HANOVER (USC00273850). 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 3333780), not an incorporated municipality. Match rule for Hanover: 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 Hanover 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.