No extremes in Louisburg: its weather tracks the middle of U.S. towns
The coldest hours of a January night bottom out at 22° on average. Summer afternoons here are warmer than in 70% of U.S. towns. Warming shows here too: 0.6° more than in 1901–2000, led by February. Seedlings are safe outdoors from about April 23, with the first autumn frost due around October 15.
A year in Louisburg at a glance
Each month’s typical high and low, and what it brings.
What stands out about Louisburg’s climate
Compared with towns across the U.S., with Louisburg’s place in Missouri beside it.
What a year in Louisburg feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 175 frost-free days a year
In half of years the last 32° night comes by April 23 and the first by October 15. Frost and day counts come from NOAA’s station at Buffalo 2n, MO, 6 miles from the town’s center, at about the same height.
The 2023 USDA map puts Louisburg’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −1°. 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 9 inches of snow a winter
Snow, measured at Buffalo 2n, MO, falls mostly in January. Precipitation (rain plus melted snow) adds up to 44 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 103 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Louisburg
80% 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 Buffalo 2n, MO.
Living with Louisburg’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
175 frost-free days in zone 6b. 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 15.
Months with highs of 62–84° and lows of 40° or more: April, May, June, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Louisburg from natural hazards, river flooding is the largest share (44%); heat waves, cold waves, winter storms and ice storms together are 26%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Louisburg and similar climates
TownRatings has no climate map of the towns around Louisburg yet.
Climates most like Louisburg’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 |
|---|---|---|---|---|
| Louisburg, MO | 22° | 89° | 44" | 9.0" |
| Pinckneyville, IL | 24° | 88° | 45" | 8.6" |
| Lake of the Woods, VA | 25° | 88° | 44" | 11" |
| Phoenixville, PA | 23° | 88° | 47" | 7.6" |
| Vincennes, IN | 23° | 88° | 47" | 8.5" |
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 Louisburg averaged 0.6° warmer than the 1900s. The biggest change is in February (+1.8°).
A smaller shift than in 96% 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 Louisburg compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Louisburg’s place among Missouri’s.
Louisburg weather by month
Highs, lows and precipitation from NOAA’s grid at Louisburg’s center; snow, wet days and snow on the ground from Buffalo 2n, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 43° | 22° | 2.2" | 4.1" | 7 | 6 | 27° – 43° |
| February | 48° | 26° | 2.2" | 1.7" | 7 | 2 | 29° – 46° |
| March | 57° | 34° | 3.3" | 1.2" | 10 | 1 | 39° – 57° |
| April | 68° | 44° | 4.8" | 0.0" | 11 | 0 | 48° – 61° |
| May | 76° | 53° | 5.7" | 0.0" | 12 | 0 | 60° – 72° |
| June | 84° | 62° | 4.6" | 0.0" | 10 | 0 | 69° – 78° |
| July | 89° | 67° | 4.2" | 0.0" | 8 | 0 | 73° – 84° |
| August | 87° | 65° | 3.8" | 0.0" | 8 | 0 | 70° – 81° |
| September | 80° | 57° | 4.2" | 0.0" | 7 | 0 | 64° – 76° |
| October | 69° | 45° | 3.6" | 0.0" | 8 | 0 | 51° – 63° |
| November | 56° | 35° | 3.4" | 0.5" | 9 | 0 | 38° – 54° |
| December | 46° | 26° | 2.4" | 1.5" | 6 | 2 | 23° – 43° |
| Year | 67° | 45° | 44.4" | 9.0" | 103 | 12 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 23° to 43°. June is the most reliable, staying within 9°.
Where Louisburg’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 Louisburg’s center.
- Snow: Buffalo 2n, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Buffalo 2n, MO, 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 Louisburg’s climate
What is the weather like in Louisburg?
A typical July afternoon reaches 89°, a January night drops to 22°, and about 9 inches of snow falls in a normal winter. Milder January nights than 52% of U.S. towns; hotter July afternoons than 70% of U.S. towns.
How cold does it get in Louisburg in winter?
January nights average 22°. About 108 nights a year reach 32° or below and 2 reach 0° or below. In the coldest January of the last 30 years the month averaged 27°.
How much snow does Louisburg get?
About 9.0 inches in a normal winter at Buffalo 2n, MO, most of it in January, with snow on the ground about 12 days a year.
How hot does it get in Louisburg?
July, with a typical high of 89° and a low of 67°. About 34 days a year reach 90° and 3 reach 100° (Buffalo 2n, MO).
When is the first and last frost in Louisburg?
In half of years the last spring frost (32°) comes by April 23 and the first fall frost by October 15, about 175 frost-free days, at Buffalo 2n, MO.
What growing zone is Louisburg in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −1°.
What is the best time of year to visit Louisburg?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, June, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Louisburg getting warmer?
Yes: 1991–2020 averaged 0.6° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 96% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Louisburg.
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.