July in Miller runs hotter than in 72% of U.S. towns
In January the night’s low is typically 24°. The seasons are far apart: from a winter night to a summer afternoon the average spans 65°. Precipitation is plentiful here, more than falls on 63% of U.S. towns. Radiators earn their keep from November to March, the months that average under 50°.
A year in Miller at a glance
Each month’s typical high and low, and what it brings.
What stands out about Miller’s climate
Compared with towns across the U.S., with Miller’s place in Missouri beside it.
What a year in Miller feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 188 frost-free days a year
In half of years the last 32° night comes by April 14 and the first by October 21. Frost and day counts come from NOAA’s station at Mt Vernon Univ Mo - Sw Ctr, MO, 10 miles from the town’s center, at about the same height.
The 2023 USDA map puts Miller’s center in zone 7a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 0°. 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 13 inches of snow a winter
Snow, measured at Lockwood, MO, falls mostly in January. Precipitation (rain plus melted snow) adds up to 46 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 109 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Miller
76% 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 Mt Vernon Univ Mo - Sw Ctr, MO.
Living with Miller’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
188 frost-free days in zone 7a. The last frost comes by Apr 14 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, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Miller from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 16%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Miller and similar climates
TownRatings has no climate map of the towns around Miller yet.
Climates most like Miller’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 |
|---|---|---|---|---|
| Miller, MO | 24° | 89° | 46" | 13" |
| Du Quoin, IL | 24° | 88° | 46" | 12" |
| Spotsylvania Courthouse, VA | 25° | 88° | 44" | 11" |
| Seaford, DE | 27° | 89° | 46" | 13" |
| Henderson, KY | 25° | 88° | 48" | 12" |
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 Miller averaged 0.6° warmer than the 1900s. The biggest change is in February (+1.6°).
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 Miller compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Miller’s place among Missouri’s.
Miller weather by month
Highs, lows and precipitation from NOAA’s grid at Miller’s center; snow, wet days and snow on the ground from Lockwood, MO. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 44° | 24° | 2.2" | 3.7" | 8 | 6 | 29° – 44° |
| February | 49° | 28° | 2.2" | 3.1" | 8 | 3 | 30° – 48° |
| March | 58° | 36° | 3.6" | 2.3" | 10 | 1 | 40° – 58° |
| April | 68° | 45° | 4.8" | 0.0" | 11 | 0 | 50° – 62° |
| May | 76° | 54° | 6.0" | 0.1" | 12 | 0 | 60° – 73° |
| June | 84° | 63° | 5.0" | 0.0" | 11 | 0 | 69° – 78° |
| July | 89° | 67° | 4.0" | 0.0" | 9 | 0 | 73° – 85° |
| August | 88° | 66° | 3.5" | 0.0" | 8 | 0 | 70° – 81° |
| September | 81° | 58° | 4.5" | 0.0" | 8 | 0 | 65° – 76° |
| October | 70° | 46° | 3.6" | 0.0" | 9 | 0 | 51° – 64° |
| November | 57° | 36° | 3.5" | 0.4" | 9 | 0 | 40° – 54° |
| December | 47° | 28° | 2.7" | 3.2" | 8 | 3 | 24° – 44° |
| Year | 67° | 46° | 45.7" | 12.8" | 109 | 13 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 24° to 44°. June is the most reliable, staying within 9°.
Where Miller’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 Miller’s center.
- Snow: Lockwood, MO.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Mt Vernon Univ Mo - Sw Ctr, MO, 10 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 Miller’s climate
What is the weather like in Miller?
A typical July afternoon reaches 89°, a January night drops to 24°, and about 13 inches of snow falls in a normal winter. Milder January nights than 60% of U.S. towns; hotter July afternoons than 72% of U.S. towns.
How cold does it get in Miller in winter?
January nights average 24°. About 111 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 29°.
How much snow does Miller get?
About 13 inches in a normal winter at Lockwood, MO, most of it in January, with snow on the ground about 13 days a year.
How hot does it get in Miller?
July, with a typical high of 89° and a low of 67°. About 46 days a year reach 90° and 5 reach 100° (Mt Vernon Univ Mo - Sw Ctr, MO).
When is the first and last frost in Miller?
In half of years the last spring frost (32°) comes by April 14 and the first fall frost by October 21, about 188 frost-free days, at Mt Vernon Univ Mo - Sw Ctr, MO.
What growing zone is Miller in?
Zone 7a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 0°.
What is the best time of year to visit Miller?
By one simple rule (highs of 62–84° and lows of 40° or more), April, May, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Miller 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 Miller.
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.