Neither notably warm, cold, wet nor dry, Lake Monticello sits near the middle of U.S. towns
The warmest part of a July day comes in at 88° on average. Its July heat outdoes that of 70% of U.S. towns. Warming shows here too: 1.4° more than in 1901–2000, led by December. Keep the boiler serviced for the months from November to March, which average under 50°.
A year in Lake Monticello at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lake Monticello’s climate
Compared with towns across the U.S., with Lake Monticello’s place in Virginia beside it.
What a year in Lake Monticello feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 180 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 21. Frost and day counts come from NOAA’s station at Palmyra 3s, VA, 8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Lake Monticello’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 4°. 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 12 inches of snow a winter
Snow, measured at Palmyra 3s, VA, falls mostly in February. Precipitation (rain plus melted snow) adds up to 45 inches a year; September is the wettest month and February the driest. Rain or snow falls on about 110 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Lake Monticello
81% of the work is heating. Months averaging under 55° run from November through March.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Palmyra 3s, VA.
Living with Lake Monticello’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
180 frost-free days in zone 7a. The last frost comes by Apr 23 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 21.
Months with highs of 62–84° and lows of 40° or more: April, May, September and October. 4.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lake Monticello from natural hazards, river flooding is the largest share (62%); heat waves, cold waves, winter storms and ice storms together are 4%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lake Monticello and similar climates
TownRatings has no climate map of the towns around Lake Monticello yet.
Climates most like Lake Monticello’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 |
|---|---|---|---|---|
| Lake Monticello, VA | 26° | 88° | 45" | 12" |
| Seaford, DE | 27° | 89° | 46" | 13" |
| Chester, IL | 24° | 88° | 44" | 12" |
| Edgewood, MD | 26° | 88° | 46" | 17" |
| Aurora, MO | 24° | 89° | 47" | 12" |
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 Lake Monticello averaged 1.4° warmer than the 1900s. The biggest change is in December (+2.5°).
A bigger shift than in 52% 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 Lake Monticello compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lake Monticello’s place among Virginia’s.
Lake Monticello weather by month
Highs, lows and precipitation from NOAA’s grid at Lake Monticello’s center; snow, wet days and snow on the ground from Palmyra 3s, VA. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 47° | 26° | 3.1" | 3.7" | 9 | 2 | 30° – 43° |
| February | 51° | 28° | 2.7" | 4.7" | 9 | 3 | 30° – 48° |
| March | 59° | 34° | 3.8" | 1.8" | 10 | 1 | 41° – 57° |
| April | 70° | 44° | 3.4" | 0.0" | 10 | 0 | 52° – 62° |
| May | 77° | 53° | 4.3" | 0.0" | 11 | 0 | 61° – 71° |
| June | 85° | 62° | 4.3" | 0.0" | 10 | 0 | 69° – 77° |
| July | 88° | 66° | 4.3" | 0.0" | 10 | 0 | 73° – 81° |
| August | 87° | 65° | 3.8" | 0.0" | 9 | 0 | 72° – 78° |
| September | 80° | 58° | 4.5" | 0.0" | 8 | 0 | 65° – 74° |
| October | 70° | 46° | 3.7" | 0.0" | 7 | 0 | 54° – 63° |
| November | 59° | 36° | 3.4" | 0.1" | 8 | 0 | 42° – 53° |
| December | 50° | 29° | 3.5" | 2.0" | 9 | 1 | 30° – 50° |
| Year | 68° | 46° | 44.6" | 12.3" | 110 | 8 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 30° to 50°. August is the most reliable, staying within 7°.
Where Lake Monticello’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 Lake Monticello’s center.
- Snow: Palmyra 3s, VA.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Palmyra 3s, VA, 8 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 Lake Monticello’s climate
What is the weather like in Lake Monticello?
A typical July afternoon reaches 88°, a January night drops to 26°, and about 12 inches of snow falls in a normal winter. Milder January nights than 66% of U.S. towns; hotter July afternoons than 70% of U.S. towns.
How cold does it get in Lake Monticello in winter?
January nights average 26°. About 112 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 30°.
How much snow does Lake Monticello get?
About 12 inches in a normal winter at Palmyra 3s, VA, most of it in February, with snow on the ground about 8 days a year.
How hot does it get in Lake Monticello?
July, with a typical high of 88° and a low of 66°. About 26 days a year reach 90° (Palmyra 3s, VA).
When is the first and last frost in Lake Monticello?
In half of years the last spring frost (32°) comes by April 23 and the first fall frost by October 21, about 180 frost-free days, at Palmyra 3s, VA.
What growing zone is Lake Monticello in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 4°.
What is the best time of year to visit Lake Monticello?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Lake Monticello getting warmer?
Yes: 1991–2020 averaged 1.4° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 52% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lake Monticello.
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.