Jameson has colder winter nights than 75% of U.S. towns
High summer brings afternoon highs near 87°. In July, afternoons here are warmer than in 64% of U.S. towns. Since 1901–2000, the year has warmed by 0.7°, most of all in December. Warm coats and heating bills mark the months from November to March, when means dip under 50°.
A year in Jameson at a glance
Each month’s typical high and low, and what it brings.
What stands out about Jameson’s climate
Compared with towns across the U.S., with Jameson’s place in Missouri beside it.
What a year in Jameson feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 184 frost-free days a year
In half of years the last 32° night comes by April 19 and the first by October 21. Frost and day counts come from NOAA’s station at Gallatin 1w, MO, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Jameson’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −8°. 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 19 inches of snow a winter
Snow, measured at Pattonsburg 2s, MO, falls mostly in February. Precipitation (rain plus melted snow) adds up to 39 inches a year; May is the wettest month and January the driest. Rain or snow falls on about 98 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Jameson
85% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through April.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Gallatin 1w, MO.
Living with Jameson’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
184 frost-free days in zone 6a. The last frost comes by Apr 19 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 21.
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 Jameson from natural hazards, river flooding is the largest share (46%); heat waves, cold waves, winter storms and ice storms together are 16%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Jameson and similar climates
TownRatings has no climate map of the towns around Jameson yet.
Climates most like Jameson’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 |
|---|---|---|---|---|
| Jameson, MO | 17° | 87° | 39" | 19" |
| Jacksonville, IL | 19° | 87° | 39" | 16" |
| Burlington, IA | 16° | 86° | 38" | 22" |
| Terre Haute, IN | 21° | 87° | 43" | 15" |
| Lock Haven, PA | 19° | 86° | 41" | 30" |
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 Jameson averaged 0.7° warmer than the 1900s. The biggest change is in December (+1.8°).
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 Jameson compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Jameson’s place among Missouri’s.
Jameson weather by month
Highs, lows and precipitation from NOAA’s grid at Jameson’s center; snow, wet days and snow on the ground from Pattonsburg 2s, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 35° | 17° | 1.1" | 4.5" | 6 | 10 | 19° – 37° |
| February | 41° | 21° | 1.5" | 5.2" | 6 | 7 | 20° – 41° |
| March | 53° | 31° | 2.4" | 2.2" | 8 | 2 | 35° – 56° |
| April | 64° | 41° | 3.8" | 0.8" | 10 | 0 | 44° – 59° |
| May | 74° | 52° | 5.5" | 0.0" | 12 | 0 | 58° – 72° |
| June | 83° | 62° | 5.2" | 0.0" | 10 | 0 | 69° – 77° |
| July | 87° | 66° | 4.5" | 0.0" | 9 | 0 | 72° – 84° |
| August | 86° | 64° | 4.0" | 0.0" | 8 | 0 | 68° – 80° |
| September | 78° | 55° | 4.0" | 0.0" | 8 | 0 | 60° – 72° |
| October | 66° | 43° | 3.2" | 0.2" | 8 | 0 | 48° – 59° |
| November | 52° | 32° | 2.2" | 1.1" | 7 | 1 | 33° – 50° |
| December | 39° | 22° | 1.6" | 4.5" | 6 | 6 | 16° – 37° |
| Year | 63° | 42° | 38.8" | 18.5" | 98 | 26 |
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 35° to 56°. June is the most reliable, staying within 8°.
Where Jameson’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 Jameson’s center.
- Snow: Pattonsburg 2s, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Gallatin 1w, MO, 7 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 Jameson’s climate
What is the weather like in Jameson?
A typical July afternoon reaches 87°, a January night drops to 17°, and about 19 inches of snow falls in a normal winter. Colder January nights than 75% of U.S. towns; hotter July afternoons than 64% of U.S. towns.
How cold does it get in Jameson in winter?
January nights average 17°. About 127 nights a year reach 32° or below and 7 reach 0° or below. In the coldest January of the last 30 years the month averaged 19°.
How much snow does Jameson get?
About 19 inches in a normal winter at Pattonsburg 2s, MO, most of it in February, with snow on the ground about 26 days a year.
How hot does it get in Jameson?
July, with a typical high of 87° and a low of 66°. About 29 days a year reach 90° and 2 reach 100° (Gallatin 1w, MO).
When is the first and last frost in Jameson?
In half of years the last spring frost (32°) comes by April 19 and the first fall frost by October 21, about 184 frost-free days, at Gallatin 1w, MO.
What growing zone is Jameson in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −8°.
What is the best time of year to visit Jameson?
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 Jameson getting warmer?
Yes: 1991–2020 averaged 0.7° 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 Jameson.
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.