Photo: Jared and Corin · CC BY-SA 2.0Andover gets about 91 inches of snow a winter, more than 97% of U.S. towns
High summer brings afternoon highs near 76°. Its July afternoons stay fresher than in 98% of U.S. towns. The latest 30-year average runs 1.8° warmer than 1901–2000’s, with December up the most. Radiators earn their keep from October to April, the months that average under 50°.
A year in Andover at a glance
Each month’s typical high and low, and what it brings.
What stands out about Andover’s climate
Compared with towns across the U.S., with Andover’s place in Vermont beside it.
What a year in Andover feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 140 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by October 2. Frost and day counts come from NOAA’s station at Peru, VT, 9 miles from the town’s center, at about the same height.
The 2023 USDA map puts Andover’s center in zone 5a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −18°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
About 91 inches of snow a winter
Snow, measured at Ludlow, VT, falls mostly in January and March. Precipitation (rain plus melted snow) adds up to 52 inches a year; October is the wettest month and February the driest. Rain or snow falls on about 156 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Andover
98% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Peru, VT.
Living with Andover’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
140 frost-free days in zone 5a. The last frost comes by May 16 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 2.
Months with highs of 62–84° and lows of 40° or more: June, July, August and September. 9.5 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Andover from natural hazards, river flooding is the largest share (76%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Andover and its neighbors
Chester the hottest July afternoons (80°, 4° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Andover’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 |
|---|---|---|---|---|
| Andover, VT | 9° | 76° | 52" | 91" |
| Belfast, ME | 12° | 76° | 48" | 72" |
| Cazenovia, NY | 13° | 79° | 44" | 117" |
| Corry, PA | 16° | 80° | 47" | 114" |
| Sault Ste. Marie, MI | 8° | 76° | 37" | 120" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
Warmer than it used to be
The last 30 years in Andover averaged 1.8° warmer than the 1900s. The biggest change is in December (+3.7°).
A bigger shift than in 76% 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 Andover compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Andover’s place among Vermont’s.
Andover weather by month
Highs, lows and precipitation from NOAA’s grid at Andover’s center; snow, wet days and snow on the ground from Ludlow, VT. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 27° | 9° | 4.0" | 21.0" | 15 | 7° – 26° |
| February | 30° | 10° | 3.3" | 17.5" | 13 | 6° – 26° |
| March | 38° | 18° | 4.0" | 20.7" | 14 | 19° – 37° |
| April | 51° | 28° | 4.4" | 5.6" | 12 | 35° – 45° |
| May | 64° | 39° | 4.3" | 0.1" | 14 | 46° – 56° |
| June | 72° | 48° | 4.9" | 0.0" | 12 | 57° – 64° |
| July | 76° | 53° | 4.6" | 0.0" | 14 | 60° – 69° |
| August | 74° | 52° | 4.4" | 0.0" | 11 | 60° – 67° |
| September | 68° | 45° | 4.2" | 0.0" | 12 | 51° – 60° |
| October | 55° | 35° | 5.4" | 1.0" | 11 | 40° – 51° |
| November | 43° | 25° | 4.1" | 7.6" | 13 | 29° – 40° |
| December | 32° | 16° | 4.7" | 17.1" | 15 | 17° – 34° |
| Year | 52° | 31° | 52.3" | 90.6" | 156 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 6° to 26°. August is the most reliable, staying within 7°.
Where Andover’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 Andover’s center.
- Snow: Ludlow, VT.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Peru, VT, 9 miles from the town’s center, at about the same height; 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 Andover’s climate
What is the weather like in Andover?
A typical July afternoon reaches 76°, a January night drops to 9°, and about 91 inches of snow falls in a normal winter. Colder January nights than 95% of U.S. towns; cooler July afternoons than 98% of U.S. towns.
How cold does it get in Andover in winter?
January nights average 9°. About 175 nights a year reach 32° or below and 21 reach 0° or below. In the coldest January of the last 30 years the month averaged 7°.
How much snow does Andover get?
About 91 inches in a normal winter at Ludlow, VT, most of it in January and March.
How hot does it get in Andover?
July, with a typical high of 76°. 90° days are rare: none in a normal year at Peru, VT.
When is the first and last frost in Andover?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by October 2, about 140 frost-free days, at Peru, VT.
What growing zone is Andover in?
Zone 5a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −18°.
What is the best time of year to visit Andover?
By one simple rule (highs of 62–84° and lows of 40° or more), June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Andover getting warmer?
Yes: 1991–2020 averaged 1.8° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 76% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Andover.
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.