Lyman’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 91°, a January night drops to 40°, and snow is almost unheard of.
A year in Lyman at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lyman’s climate
Compared with towns across the U.S., with Lyman’s place in Mississippi beside it.
What a year in Lyman feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 260 frost-free days a year
In half of years the last 32° night comes by March 7 and the first by November 22. Frost and day counts come from NOAA’s station at Saucier Exp Forest, MS, 9 miles from the town’s center, 150 ft higher.
The 2023 USDA map puts Lyman’s center in zone 9a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 22°. 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 66 inches of rain a year
July is the wettest month and October the driest. Rain falls on about 109 days a year. Snow is rare: about 0.1" in a normal year at Saucier Exp Forest, MS, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Lyman
41% of the work is heating, so air conditioning is the bigger bill. Months averaging under 55° run from December through February.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Saucier Exp Forest, MS.
Living with Lyman’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
260 frost-free days in zone 9a. The last frost comes by Mar 7 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 22.
Months with highs of 62–84° and lows of 40° or more: February, March, April, October, November and December. 0.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Lyman from natural hazards, hurricanes are the largest share (56%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lyman and its neighbors
Every town next door is within a degree of Lyman in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Lyman’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 |
|---|---|---|---|---|
| Lyman, MS | 40° | 91° | 66" | 0.1" |
| Crestview, FL | 39° | 92° | 63" | 0.0" |
| Carencro, LA | 42° | 92° | 63" | 0.0" |
| Orange, TX | 42° | 91° | 62" | 0.0" |
| Magalia, CA | 38° | 92° | 61" | 0.1" |
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 Lyman averaged 0.6° warmer than the 1900s. The biggest change is in March (+1.1°).
A smaller shift than in 95% 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 Lyman compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lyman’s place among Mississippi’s.
Lyman weather by month
Highs, lows and precipitation from NOAA’s grid at Lyman’s center; snow, wet days and snow on the ground from Saucier Exp Forest, MS. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 61° | 40° | 5.8" | 0.0" | 10 | 0 | 43° – 57° |
| February | 65° | 44° | 4.6" | 0.0" | 8 | 0 | 46° – 63° |
| March | 72° | 49° | 5.5" | 0.1" | 9 | 0 | 55° – 68° |
| April | 77° | 55° | 5.6" | 0.0" | 7 | 0 | 62° – 71° |
| May | 84° | 63° | 5.4" | 0.0" | 7 | 0 | 71° – 77° |
| June | 89° | 70° | 6.6" | 0.0" | 11 | 0 | 77° – 83° |
| July | 91° | 72° | 7.5" | 0.0" | 13 | 0 | 79° – 83° |
| August | 91° | 72° | 6.3" | 0.0" | 12 | 0 | 78° – 84° |
| September | 87° | 67° | 5.3" | 0.0" | 9 | 0 | 75° – 81° |
| October | 80° | 57° | 3.6" | 0.0" | 6 | 0 | 64° – 73° |
| November | 70° | 47° | 4.1" | 0.0" | 7 | 0 | 53° – 63° |
| December | 63° | 42° | 5.2" | 0.0" | 8 | 0 | 46° – 60° |
| Year | 77° | 56° | 65.7" | 0.1" | 109 | 0 |
How much a month can swing
A normal is an average. February swings the most: from 1991 to 2020 its average ranged from 46° to 63°. July is the most reliable, staying within 5°.
Where Lyman’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 Lyman’s center.
- Snow: Saucier Exp Forest, MS.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Saucier Exp Forest, MS, 9 miles from the town’s center, 150 ft higher; 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 Lyman’s climate
What is the weather like in Lyman?
A typical July afternoon reaches 91°, a January night drops to 40°, and snow is almost unheard of. Milder January nights than 89% of U.S. towns; hotter July afternoons than 81% of U.S. towns.
How cold does it get in Lyman in winter?
January nights average 40°. About 20 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 43°.
How much snow does Lyman get?
About 0.1 inches in a normal winter at Saucier Exp Forest, MS, so most winters see none.
How hot does it get in Lyman?
July, with a typical high of 91° and a low of 72°. About 79 days a year reach 90° and 2 reach 100° (Saucier Exp Forest, MS).
When is the first and last frost in Lyman?
In half of years the last spring frost (32°) comes by March 7 and the first fall frost by November 22, about 260 frost-free days, at Saucier Exp Forest, MS.
What growing zone is Lyman in?
Zone 9a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 22°.
What is the best time of year to visit Lyman?
By one simple rule (highs of 62–84° and lows of 40° or more), February, March, April, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Lyman getting warmer?
Yes: 1991–2020 averaged 0.6° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 95% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lyman.
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.