Underwood-Petersville sits near the top of U.S. towns for precipitation, with 57 inches a year
Expect July afternoons of about 90°. The wettest month is December; the driest is September. Its July heat outdoes that of 77% of U.S. towns. Comfortable outdoor weather, highs of 73–81°, belongs to April, May and October.
A year in Underwood-Petersville at a glance
Each month’s typical high and low, and what it brings.
What stands out about Underwood-Petersville’s climate
Compared with towns across the U.S., with Underwood-Petersville’s place in Alabama beside it.
What a year in Underwood-Petersville feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 220 frost-free days a year
In half of years the last 32° night comes by March 30 and the first by November 3. Day counts come from NOAA’s station at Muscle Shoals 2 N, AL, 8 miles from the town’s center, at about the same height; frost dates and degree days from Muscle Shoals Wtp, AL, 9 miles away.
The 2023 USDA map puts Underwood-Petersville’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 10°. 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 57 inches of rain a year
December is the wettest month and September the driest.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Underwood-Petersville
65% 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 Muscle Shoals Wtp, AL.
Living with Underwood-Petersville’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
220 frost-free days in zone 8a. The last frost comes by Mar 30 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 3.
Months with highs of 62–84° and lows of 40° or more: April, May and October.
Parks & trails →Of the yearly building losses FEMA expects in Underwood-Petersville from natural hazards, river flooding is the largest share (31%); heat waves, cold waves, winter storms and ice storms together are 27%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Underwood-Petersville and similar climates
TownRatings has no climate map of the towns around Underwood-Petersville yet.
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 Underwood-Petersville averaged 0.7° warmer than the 1900s. The biggest change is in February (+1.8°).
A smaller shift than in 92% 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 Underwood-Petersville compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Underwood-Petersville’s place among Alabama’s.
Underwood-Petersville weather by month
Highs, lows and precipitation from NOAA’s grid at Underwood-Petersville’s center. 1991–2020 normals.
| Month | High | Low | Rain + melt | 30-yr range |
|---|---|---|---|---|
| January | 51° | 30° | 5.1" | 33° – 48° |
| February | 55° | 33° | 5.3" | 35° – 52° |
| March | 64° | 39° | 5.5" | 46° – 62° |
| April | 73° | 47° | 5.1" | 55° – 66° |
| May | 81° | 56° | 4.6" | 64° – 74° |
| June | 87° | 64° | 4.5" | 72° – 79° |
| July | 90° | 68° | 4.7" | 74° – 82° |
| August | 90° | 66° | 4.4" | 73° – 84° |
| September | 84° | 59° | 3.7" | 68° – 78° |
| October | 74° | 48° | 4.0" | 57° – 67° |
| November | 63° | 38° | 4.2" | 45° – 56° |
| December | 54° | 32° | 6.0" | 33° – 52° |
| Year | 72° | 48° | 57.1" |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 33° to 52°. June is the most reliable, staying within 7°.
Where Underwood-Petersville’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 Underwood-Petersville’s center.
- Frost dates, heating and cooling: Muscle Shoals Wtp, AL, 9 miles away.
- Freezing nights, 90° and 100° days: Muscle Shoals 2 N, AL, 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 Underwood-Petersville’s climate
What is the weather like in Underwood-Petersville?
A typical July afternoon reaches 90°, a January night drops to 30°. Milder January nights than 72% of U.S. towns; hotter July afternoons than 77% of U.S. towns.
How cold does it get in Underwood-Petersville in winter?
January nights average 30°. About 62 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 33°.
How hot does it get in Underwood-Petersville?
July, with a typical high of 90° and a low of 68°. About 55 days a year reach 90° and 2 reach 100° (Muscle Shoals Wtp, AL).
When is the first and last frost in Underwood-Petersville?
In half of years the last spring frost (32°) comes by March 30 and the first fall frost by November 3, about 220 frost-free days, at Muscle Shoals Wtp, AL.
What growing zone is Underwood-Petersville in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 10°.
What is the best time of year to visit Underwood-Petersville?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Underwood-Petersville getting warmer?
Yes: 1991–2020 averaged 0.7° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 92% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Underwood-Petersville.
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.