New London, WI Climate: Temperature & Rain 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 New London's primary NOAA station, NEW LONDON.
The climate verdict for New London
New London, Wisconsin has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 45°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 45°F
- average temperature, NOAA 1991-2020 normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 34.9"
- annual precipitation · 46" snow
- 155 days
- frost-free days per growing season
New London: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00475932 · New London, WI 45°F mean · 34.9" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,235
- PHOTO-FINISH ≈ Waupaca
- PRCP-MID 34.9"
- SWING-WIDE 54°F
- COMF-LOW 49/100
- LOAD-HEAT 7,816 HDD
- STN-1 USC00475932
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Waupaca, WI (+ 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 WI station list.
- New London (this station) 45°F
- Hot Shell, WY 45°F
- Near Waupaca, WI 45°F
- Near Wisconsin Rapid…, WI 45°F
- Near Red Owl, SD 45°F
Climate Living Index · New London
New London: 40/100 · grade D
New London publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for New London, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 34.9 in · 0.1 from 35 in | 96/100 · A |
| Normal heat + freeze calendar | 163 calendar days | 37/100 · F |
| Frost-free season | 155 days/year | 29/100 · F |
| Snowfall burden | 45.9 inches/year | 23/100 · F |
| Annual temperature balance | 44.8°F · 22.7° from 67.5°F | 19/100 · F |
New London · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
New London is a continental Köppen climate: Dfb
Coldest-month mean 16.5°F and warmest-month mean 70.1°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
- 70.1°F
- Coldest month
- 16.5°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 New London sits across the climate record
Three NOAA fields for New London's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 82%
- Among 6,861 stations, New London sits in the cooler third of annual means.
- Annual precipitation
- 48th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Wider than 90%
- Warmest-to-coldest month gap for New London is large versus 6,861 complete station-years.
How New London compares across U.S. station-mapped locations
New London's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 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
New London's measured station temperature trend
MethodologyAcross 85 complete annual observations from 1898 to 2024, NEW LONDON warmed at a fitted rate of 0.14°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- New London primary station fitted change +0.14 °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 | 25°F (-4°C) | 8°F (-13°C) | 17°F (-9°C) | 1.3" | 10.8" | 30.4 | 0.0 |
| February | 29°F (-2°C) | 11°F (-12°C) | 20°F (-7°C) | 1.2" | 11.0" | 27.3 | 0.0 |
| March | 41°F (5°C) | 22°F (-6°C) | 31°F (0°C) | 2.1" | 6.8" | 25.7 | 0.0 |
| April | 54°F (12°C) | 33°F (1°C) | 44°F (7°C) | 3.5" | 3.7" | 15.4 | 0.0 |
| May | 68°F (20°C) | 45°F (7°C) | 56°F (14°C) | 4.2" | 0.0" | 2.1 | 0.2 |
| June | 77°F (25°C) | 55°F (13°C) | 66°F (19°C) | 4.8" | 0.0" | 0.0 | 1.4 |
| July | 81°F (27°C) | 59°F (15°C) | 70°F (21°C) | 4.1" | 0.0" | 0.0 | 2.5 |
| August | 79°F (26°C) | 58°F (14°C) | 69°F (20°C) | 3.7" | 0.0" | 0.0 | 1.4 |
| September | 72°F (22°C) | 49°F (9°C) | 60°F (16°C) | 3.4" | 0.0" | 0.9 | 0.4 |
| October | 58°F (15°C) | 38°F (3°C) | 48°F (9°C) | 2.9" | 0.2" | 9.9 | 0.0 |
| November | 43°F (6°C) | 26°F (-3°C) | 35°F (2°C) | 1.9" | 2.4" | 22.2 | 0.0 |
| December | 30°F (-1°C) | 15°F (-9°C) | 23°F (-5°C) | 1.8" | 11.0" | 29.5 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 81°F around July 15, short of 90°F on every date, while 163 dates carry a normal low at or below freezing, the coldest 7°F near January 23.
The freezing stretch
The normal low stays at or below 32°F into April 12, then returns to freezing around November 2, covering 163 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 May 28, when 40% of years recorded at least a hundredth of an inch. The driest is February 12 at 21%. Summed across the calendar, that is about 112 wet dates a year.
The widest day
September 22 carries the biggest normal gap between afternoon and dawn, 23°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for New London.
Where New London Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 23°F, is narrower than most stations record.
New London earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 10.8"
7.6 days with precipitation
Snow: 11.0"
5.4 days with precipitation
Snow: 6.8"
7.5 days with precipitation
Snow: 3.7"
10.0 days with precipitation
12.1 days with precipitation
11.1 days with precipitation
10.3 days with precipitation
10.2 days with precipitation
9.8 days with precipitation
Snow: 0.2"
10.3 days with precipitation
Snow: 2.4"
7.4 days with precipitation
Snow: 11.0"
8.1 days with precipitation
New London runs a summer-peaked wet season
36% of New London's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is June at 4.8", on a wide 53.6°F gap between its warmest and coldest month. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: June, May, July, taking 37% of the annual total between them.
- Driest month: February at 1.2".
- Winter share: 12% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
How New London's precipitation splits across the calendar
About 110 days a year record measurable precipitation here, carrying 34.9" between them, or roughly 0.32 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 New London
New London averages 45.9 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 26 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: 45.9 inches of depth.
- Days recording measurable snow: about 26 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 13% 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 6
50% probability date
Last Spring Freeze
May 4
50% probability date
Growing Season
155 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,816
Higher = more heating needed
Cooling Degree Days
497
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside WI closest to New London 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 (45°F here).
- Dannemora, NY 45°F · 0.0°F off
- Estherville, IA 45°F · 0.0°F off
- Hamilton, MT 45°F · 0.0°F off
- Harrison, NE 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (34.9" here), excluding temperature-peer places.
- Port Huron, MI 34.9" · 0.0" off
- Saline, MI 34.9" · 0.0" off
- Blanco, TX 34.8" · 0.0" off
- Glenwood, IA 34.8" · 0.1" off
Snow and freeze rhythm
When cold and snow define New London
heating led · moderate · mid swing
New London's energy balance leans toward cold weather: 7,816 annual heating degree days against 497 for cooling. Its 53.6°F seasonal range still makes the monthly rows more useful than the annual average alone.
New London's frost-free season lasts about 155 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. New London coldest normal
January
Averaging 17°F (-9°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. New London typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. New London snow peak
February
New London averages 45.9 inches of snow a year, with February the snowiest month on the normals.
Questions about New London's climate
How much snow does New London get? ▼
How cold does New London get in winter? ▼
How much energy does heating and cooling require in New London? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from New London's primary station: NEW LONDON (USC00475932). 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 an incorporated place (GEOID 5556925). Match rule for New London: 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 New London 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.