Photo: Guerreroast · CC BY 4.0No extremes in New London: its weather tracks the middle of U.S. towns
In January the night’s low is typically 20°. It is a dry place: less rain and snow fall here than on 63% of U.S. towns. Warming shows here too: 0.7° more than in 1901–2000, led by December. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in New London at a glance
Each month’s typical high and low, and what it brings.
What stands out about New London’s climate
Compared with towns across the U.S., with New London’s place in Missouri beside it.
What a year in New London feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 212 frost-free days a year
In half of years the last 32° night comes by April 4 and the first by November 4. Frost and day counts come from NOAA’s station at Saverton L&d 22, MO, 9 miles from the town’s center, 150 ft lower.
The 2023 USDA map puts New London’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −5°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 16 inches of snow a winter
Snow, measured at Bowling Green 1 E, MO, is heaviest from January through February, about 5 inches a month. Precipitation (rain plus melted snow) adds up to 39 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 95 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in New London
78% of the work is heating. Months averaging under 55° run from November through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Saverton L&d 22, MO.
Living with New London’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
212 frost-free days in zone 6a. The last frost comes by Apr 4 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 4.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in New London from natural hazards, river flooding is the largest share (41%); heat waves, cold waves, winter storms and ice storms together are 40%. Normals are averages; the hazards page covers the extremes.
Natural hazards →New London and similar climates
TownRatings has no climate map of the towns around New London yet.
Climates most like New London’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| New London, MO | 20° | 87° | 39" | 16" |
| Spring Hill, KS | 21° | 88° | 40" | 14" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Mattoon, IL | 20° | 86° | 41" | 15" |
| Strasburg, VA | 23° | 87° | 39" | 21" |
Temperatures and precipitation come from NOAA’s 5 km grid; snow and day counts from the stations named on this page.
Warmer than it used to be
The last 30 years in New London averaged 0.7° warmer than the 1900s. The biggest change is in December (+2.0°).
A smaller shift than in 95% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How New London compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with New London’s place among Missouri’s.
New London weather by month
Highs, lows and precipitation from NOAA’s grid at New London’s center; snow, wet days and snow on the ground from Bowling Green 1 E, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 36° | 20° | 1.9" | 4.6" | 6 | 22° – 39° |
| February | 41° | 24° | 1.9" | 5.0" | 7 | 21° – 43° |
| March | 53° | 33° | 2.8" | 1.9" | 9 | 35° – 56° |
| April | 65° | 43° | 4.1" | 0.2" | 10 | 46° – 60° |
| May | 75° | 53° | 5.0" | 0.0" | 12 | 59° – 73° |
| June | 83° | 63° | 4.6" | 0.0" | 9 | 69° – 78° |
| July | 87° | 67° | 4.1" | 0.0" | 8 | 72° – 84° |
| August | 86° | 65° | 3.7" | 0.0" | 7 | 69° – 80° |
| September | 79° | 57° | 3.5" | 0.0" | 7 | 62° – 74° |
| October | 67° | 45° | 3.1" | 0.0" | 8 | 49° – 61° |
| November | 53° | 34° | 2.6" | 0.8" | 7 | 36° – 52° |
| December | 41° | 25° | 2.0" | 3.1" | 7 | 18° – 41° |
| Year | 64° | 44° | 39.3" | 15.6" | 95 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 18° to 41°. June is the most reliable, staying within 8°.
Where New London’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at New London’s center.
- Snow: Bowling Green 1 E, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Saverton L&d 22, MO, 9 miles from the town’s center, 150 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about New London’s climate
What is the weather like in New London?
A typical July afternoon reaches 87°, a January night drops to 20°, and about 16 inches of snow falls in a normal winter. Colder January nights than 62% of U.S. towns; hotter July afternoons than 62% of U.S. towns.
How cold does it get in New London in winter?
January nights average 20°. About 105 nights a year reach 32° or below and 4 reach 0° or below. In the coldest January of the last 30 years the month averaged 22°.
How much snow does New London get?
About 16 inches in a normal winter at Bowling Green 1 E, MO, heaviest from January through February, about 5 inches a month.
How hot does it get in New London?
July, with a typical high of 87° and a low of 67°. About 37 days a year reach 90° and 2 reach 100° (Saverton L&d 22, MO).
When is the first and last frost in New London?
In half of years the last spring frost (32°) comes by April 4 and the first fall frost by November 4, about 212 frost-free days, at Saverton L&d 22, MO.
What growing zone is New London in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −5°.
What is the best time of year to visit New London?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is New London getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 95% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in New London.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.