Riverview has warmer summer afternoons than 80% of U.S. towns
January nights here settle around 31°. The gap between a January night and a July afternoon is 59°. Winters are mild: January nights here are milder than in 74% of U.S. towns. For walks and days out, the stretch from March to May and September to October brings highs of 64–83°.
A year in Riverview at a glance
Each month’s typical high and low, and what it brings.
What stands out about Riverview’s climate
Compared with towns across the U.S., with Riverview’s place in South Carolina beside it.
What a year in Riverview feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 225 frost-free days a year
In half of years the last 32° night comes by March 27 and the first by November 5. Frost and day counts come from NOAA’s station at Winthrop Univ, SC, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Riverview’s center in zone 8a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 13°. 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 44 inches of rain a year
June is the wettest month and October the driest. Rain falls on about 98 days a year. Snow is rare: about 0.2" in a normal year at Ft Mill 4 Nw, SC, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Riverview
61% 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 Winthrop Univ, SC.
Living with Riverview’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
225 frost-free days in zone 8a. The last frost comes by Mar 27 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 5.
Months with highs of 62–84° and lows of 40° or more: March, April, May, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Riverview from natural hazards, river flooding is the largest share (58%); heat waves, cold waves, winter storms and ice storms together are 8%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Riverview and its neighbors
Every town next door is within a degree of Riverview in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Riverview’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 |
|---|---|---|---|---|
| Riverview, SC | 31° | 91° | 44" | 0.2" |
| Nashville, NC | 30° | 90° | 47" | 0.7" |
| Eatonton, GA | 33° | 92° | 47" | 0.6" |
| Emporia, VA | 29° | 90° | 48" | 1.4" |
| Hidden Valley Lake, CA | 36° | 92° | 40" | 0.3" |
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 Riverview averaged 1.0° warmer than the 1900s. The biggest change is in December (+1.9°).
A smaller shift than in 81% 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 Riverview compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Riverview’s place among South Carolina’s.
Riverview weather by month
Highs, lows and precipitation from NOAA’s grid at Riverview’s center; snow, wet days and snow on the ground from Ft Mill 4 Nw, SC. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 53° | 31° | 3.7" | 0.1" | 9 | 0 | 36° – 48° |
| February | 57° | 34° | 3.2" | 0.0" | 9 | 0 | 37° – 54° |
| March | 64° | 40° | 3.9" | 0.0" | 9 | 0 | 46° – 62° |
| April | 74° | 48° | 3.6" | 0.0" | 8 | 0 | 57° – 65° |
| May | 81° | 57° | 3.6" | 0.0" | 8 | 0 | 65° – 74° |
| June | 87° | 65° | 4.2" | 0.0" | 9 | 0 | 72° – 80° |
| July | 91° | 69° | 3.8" | 0.0" | 9 | 0 | 77° – 84° |
| August | 89° | 68° | 4.1" | 0.0" | 9 | 0 | 75° – 84° |
| September | 83° | 62° | 3.7" | 0.0" | 7 | 0 | 69° – 78° |
| October | 74° | 49° | 3.2" | 0.0" | 6 | 0 | 58° – 67° |
| November | 63° | 39° | 3.3" | 0.0" | 7 | 0 | 47° – 57° |
| December | 55° | 34° | 3.7" | 0.1" | 9 | 0 | 35° – 55° |
| Year | 72° | 50° | 43.8" | 0.2" | 98 | 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 55°. July is the most reliable, staying within 7°.
Where Riverview’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 Riverview’s center.
- Snow: Ft Mill 4 Nw, SC (NOAA station in town).
- Frost, freezing nights, 90° and 100° days, heating and cooling: Winthrop Univ, SC, 6 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 Riverview’s climate
What is the weather like in Riverview?
A typical July afternoon reaches 91°, a January night drops to 31°, and snow is almost unheard of. Milder January nights than 74% of U.S. towns; hotter July afternoons than 80% of U.S. towns.
How cold does it get in Riverview in winter?
January nights average 31°. About 51 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 36°.
How much snow does Riverview get?
About 0.2 inches in a normal winter at Ft Mill 4 Nw, SC, so most winters see none.
How hot does it get in Riverview?
July, with a typical high of 91° and a low of 69°. About 56 days a year reach 90° and 1 reach 100° (Winthrop Univ, SC).
When is the first and last frost in Riverview?
In half of years the last spring frost (32°) comes by March 27 and the first fall frost by November 5, about 225 frost-free days, at Winthrop Univ, SC.
What growing zone is Riverview in?
Zone 8a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 13°.
What is the best time of year to visit Riverview?
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 Riverview getting warmer?
Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 81% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Riverview.
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.