Photo: Rivers Langley; SaveRivers · CC BY-SA 3.0Edwardsville gets more rain and snow than 92% of U.S. towns: 54 inches of precipitation a year
On a normal January night the air cools to about 32°. Only 56° separates winter nights from summer afternoons. Its January nights stay gentler than in 75% of U.S. towns. Comfortable outdoor weather lasts from March to May and September to October, with highs of 65–83°.
A year in Edwardsville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Edwardsville’s climate
Compared with towns across the U.S., with Edwardsville’s place in Alabama beside it.
What a year in Edwardsville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 206 frost-free days a year
In half of years the last 32° night comes by April 6 and the first by October 31. Frost and day counts come from NOAA’s station at Heflin, AL, 18 miles from the town’s center, at about the same height.
The 2023 USDA map puts Edwardsville’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 12°. 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 1 inches of snow a winter
Snow, measured at Heflin, AL, falls mostly in March. Precipitation (rain plus melted snow) adds up to 54 inches a year; March is the wettest month and October the driest. Rain or snow falls on about 128 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Edwardsville
68% 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 Heflin, AL.
Living with Edwardsville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
206 frost-free days in zone 8a. The last frost comes by Apr 6 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 31.
Months with highs of 62–84° and lows of 40° or more: March, April, May, September and October. 0.8 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Edwardsville from natural hazards, river flooding is the largest share (50%); heat waves, cold waves, winter storms and ice storms together are 9%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Edwardsville and similar climates
TownRatings has no climate map of the towns around Edwardsville yet.
Climates most like Edwardsville’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 |
|---|---|---|---|---|
| Edwardsville, AL | 32° | 88° | 54" | 1.2" |
| Sans Souci, SC | 32° | 89° | 53" | 1.9" |
| Brentwood, TN | 29° | 89° | 53" | 1.7" |
| Williamston, NC | 32° | 89° | 51" | 0.5" |
| Fort Campbell North, KY | 28° | 89° | 53" | 0.5" |
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 Edwardsville averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.2°).
A smaller shift than in 84% 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 Edwardsville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Edwardsville’s place among Alabama’s.
Edwardsville weather by month
Highs, lows and precipitation from NOAA’s grid at Edwardsville’s center; snow, wet days and snow on the ground from Heflin, AL. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 52° | 32° | 5.1" | 0.4" | 13 | 0 | 34° – 49° |
| February | 57° | 34° | 5.1" | 0.1" | 13 | 0 | 37° – 55° |
| March | 65° | 41° | 5.3" | 0.5" | 11 | 0 | 46° – 62° |
| April | 73° | 47° | 4.6" | 0.0" | 10 | 0 | 56° – 66° |
| May | 79° | 56° | 4.0" | 0.0" | 10 | 0 | 63° – 72° |
| June | 86° | 64° | 4.3" | 0.0" | 11 | 0 | 71° – 78° |
| July | 88° | 67° | 4.7" | 0.0" | 12 | 0 | 74° – 81° |
| August | 88° | 66° | 4.0" | 0.0" | 10 | 0 | 73° – 82° |
| September | 83° | 60° | 3.6" | 0.0" | 8 | 0 | 68° – 77° |
| October | 73° | 49° | 3.4" | 0.0" | 8 | 0 | 57° – 66° |
| November | 63° | 39° | 4.4" | 0.0" | 9 | 0 | 45° – 56° |
| December | 54° | 34° | 5.1" | 0.2" | 13 | 0 | 35° – 56° |
| Year | 72° | 49° | 53.7" | 1.2" | 128 | 0 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 35° to 56°. July is the most reliable, staying within 7°.
Where Edwardsville’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 Edwardsville’s center.
- Snow: Heflin, AL.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Heflin, AL, 18 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 Edwardsville’s climate
What is the weather like in Edwardsville?
A typical July afternoon reaches 88°, a January night drops to 32°, and about 1 inches of snow falls in a normal winter. Milder January nights than 75% of U.S. towns; hotter July afternoons than 67% of U.S. towns.
How cold does it get in Edwardsville in winter?
January nights average 32°. About 72 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 34°.
How much snow does Edwardsville get?
About 1.2 inches in a normal winter at Heflin, AL, most of it in March, with snow on the ground about 0 days a year.
How hot does it get in Edwardsville?
July, with a typical high of 88° and a low of 67°. About 37 days a year reach 90° (Heflin, AL).
When is the first and last frost in Edwardsville?
In half of years the last spring frost (32°) comes by April 6 and the first fall frost by October 31, about 206 frost-free days, at Heflin, AL.
What growing zone is Edwardsville in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 12°.
What is the best time of year to visit Edwardsville?
By one simple rule (highs of 62–84° and lows of 40° or more), March, April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Edwardsville getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 84% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Edwardsville.
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.