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Climate in Josephville · NOAA 1991–2020 normals

Summers, winters and rain in Josephville all run close to those of most U.S. towns

High summer brings afternoon highs near 88°. By July afternoons alone, it runs hotter than 70% of U.S. towns. Decade by decade the climate has edged up, 1.0° above 1901–2000. Garden planting can start around April 10; autumn frost returns near October 26.

Less snow than 60% of U.S. towns#156Least snow  of 235 in MO
Colder January nights than 51% of U.S. towns#91 coldest of 237 in MO
All MO rankings →

A year in Josephville at a glance

Each month’s typical high and low, and what it brings.

Jan40°22° 4" snow
Feb45°25° 4" snow
Mar56°34°
Apr67°44° Last frost ~Apr 10
May76°54° 1 day 90°+Wettest
Jun85°64° 6 days 90°+
Jul88°68° 13 days 90°+
Aug87°65° 11 days 90°+
Sep80°57° 4 days 90°+
Oct69°46° First frost ~Oct 26
Nov now55°35°
Dec44°26° 3" snow

What stands out about Josephville’s climate

Compared with towns across the U.S., with Josephville’s place in Missouri beside it.

A normal year

What a year in Josephville feels like

Typical highs and lows by season and by month, from NOAA’s 30-year normals.

Winter
43° / 24°
5 days with 1"+ of snow
Spring
67° / 44°
Last frost around Apr 10
Summer
87° / 65°
36 days reach 90°
Fall
68° / 46°
First frost around Oct 26
Best months to be outsideAprMaySepOctHighs of 62–84° and lows of 40° or more
Frost, heat & the growing season

About 199 frost-free days a year

In half of years the last 32° night comes by April 10 and the first by October 26. Frost and day counts come from NOAA’s station at Weldon Spring Nws, MO, 11 miles from the town’s center, at about the same height.

105
nights at or below 32° in a normal year
119th fewest of 237 in Missouri
Fewer freezing nights than 57% of U.S. towns
2
nights at or below 0°
89th most of 237 in Missouri
More nights at or below 0° than 54% of U.S. towns
36
days that reach 90°
154th most of 237 in Missouri
More 90° days than 67% of U.S. towns
1
days that reach 100°
204th most of 237 in Missouri
More 100° days than 73% of U.S. towns
6bUSDA zone
Plant hardiness zone 6b

The 2023 USDA map puts Josephville’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°

26
JFMAMJJASOND

90° days by month

Average days at 90° or more

13
JFMAMJJASOND
Rain & snow

About 14 inches of snow a winter

Snow, measured at Weldon Spring Nws, MO, is heaviest from January through February, about 4 inches a month. Precipitation (rain plus melted snow) adds up to 42 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 107 days a year.

42"
Rain + melted snow a year
97th driest of 237 in Missouri
Drier than 51% of U.S. towns
14"
Snow in a normal winter
156th least snowy of 235 in Missouri
Less snow than 60% of U.S. towns
15 days
With 1"+ of snow on the ground
99th fewest of 168 in Missouri
Fewer days with snow on the ground than 56% of U.S. towns

Rain + melted snow by month

Inches of water

5.0"
JFMAMJJASOND

Snowfall by month

Inches of snow

4"
JFMAMJJASOND
Heating & cooling

Heating and cooling a home in Josephville

79% of the work is heating. Months averaging under 55° run from November through March.

4,866 heating degree daysLess heating than 59% of U.S. towns
1,312 cooling degree daysMore cooling than 68% of U.S. towns

Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Weldon Spring Nws, MO.

Living here

Living with Josephville’s climate

What the numbers mean for a garden, a free afternoon and a bad-weather day.

The garden window

199 frost-free days in zone 6b. The last frost comes by Apr 10 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 26.

Get outside

Months with highs of 62–84° and lows of 40° or more: April, May, September and October.

Parks & trails →
Storms and extremes

Of the yearly building losses FEMA expects in Josephville from natural hazards, river flooding is the largest share (53%); heat waves, cold waves, winter storms and ice storms together are 10%. Normals are averages; the hazards page covers the extremes.

Natural hazards →
Next door

Josephville and its neighbors

Every town next door is within a degree of Josephville in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.

Dardenne Prairie: January low 22°, July high 88°Lake St. Louis: January low 22°, July high 88°St. Paul: January low 22°, July high 88°St. Peters: January low 22°, July high 89°Cottleville: January low 22°, July high 89°Weldon Spring: January low 22°, July high 89°Wentzville: January low 22°, July high 88°O'Fallon: January low 22°, July high 88°Josephville: January low 22°, July high 88°JosephvilleO'Fallon
ColderMilder22° to 22°
Josephville21.7°
O'Fallon21.9° about the same

Climates most like Josephville’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.

TownJan. lowJuly highPrecip.Snow
Josephville, MO22°88°42"14"
Louisburg, KS21°88°41"14"
Lake of the Woods, VA25°88°44"11"
Terre Haute, IN21°87°43"15"
Robinson, IL22°87°45"12"

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.

Then and now

Warmer than it used to be

The last 30 years in Josephville averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.3°).

+1.0°1991–2020 vs. 1901–2000

A smaller shift than in 75% of U.S. towns.

Winter+2.0°now 34°, was 32°
Spring+1.3°now 55°, was 54°
Summer+0.3°now 76°, was 76°
Fall+0.6°now 57°, was 56°

Change by month

JanFebMarAprMayJunJulAugSepOctNovDec

The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.

Compared with other towns

How Josephville compares

Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Josephville’s place among Missouri’s.

Summer heat88° July high
Hotter July afternoons than 70% of U.S. towns90th hottest of 237 in Missouri
Winter cold22° January low
Colder January nights than 51% of U.S. towns91st coldest of 237 in Missouri
Precipitation42" a year
Drier than 51% of U.S. towns97th driest of 237 in Missouri
Snow14" a winter
Less snow than 60% of U.S. towns156th least snowy of 235 in Missouri
Hot days36 days at 90°+
More 90° days than 67% of U.S. towns154th most of 237 in Missouri
Freezing nights105 a year
Fewer freezing nights than 57% of U.S. towns119th fewest of 237 in Missouri
Growing season199 frost-free days
A longer frost-free season than 66% of U.S. towns109th longest of 237 in Missouri
Month by month

Josephville weather by month

Highs, lows and precipitation from NOAA’s grid at Josephville’s center; snow, wet days and snow on the ground from Weldon Spring Nws, MO. 1991–2020 normals.

MonthHighLowRain + meltSnowWet daysSnow on ground30-yr range
January40°22°2.5"4.1"8525° – 42°
February45°25°2.2"3.7"8425° – 45°
March56°34°3.5"1.7"10137° – 58°
April67°44°4.7"0.2"10049° – 61°
May76°54°5.0"0.0"13060° – 73°
June85°64°4.5"0.0"10069° – 78°
July88°68°3.8"0.0"8073° – 85°
August87°65°3.7"0.0"8070° – 82°
September80°57°3.4"0.0"7064° – 75°
October69°46°3.2"0.0"9052° – 63°
November55°35°3.4"0.8"8137° – 52°
December44°26°2.6"3.0"8421° – 44°
Year66°45°42.3"13.5"10715
Year to year

How much a month can swing

A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 21° to 44°. June is the most reliable, staying within 9°.

Coldest to warmest month in 30 yearsNormal
Sources

Where Josephville’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 Josephville’s center.
  • Snow: Weldon Spring Nws, MO.
  • Frost, freezing nights, 90° and 100° days, heating and cooling: Weldon Spring Nws, MO, 11 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 Josephville’s climate

What is the weather like in Josephville?

A typical July afternoon reaches 88°, a January night drops to 22°, and about 14 inches of snow falls in a normal winter. Colder January nights than 51% of U.S. towns; hotter July afternoons than 70% of U.S. towns.

How cold does it get in Josephville in winter?

January nights average 22°. About 105 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 25°.

How much snow does Josephville get?

About 14 inches in a normal winter at Weldon Spring Nws, MO, heaviest from January through February, about 4 inches a month, with snow on the ground about 15 days a year.

How hot does it get in Josephville?

July, with a typical high of 88° and a low of 68°. About 36 days a year reach 90° and 1 reach 100° (Weldon Spring Nws, MO).

When is the first and last frost in Josephville?

In half of years the last spring frost (32°) comes by April 10 and the first fall frost by October 26, about 199 frost-free days, at Weldon Spring Nws, MO.

What growing zone is Josephville 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 Josephville?

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 Josephville getting warmer?

Yes: 1991–2020 averaged 1.0° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 75% of U.S. towns.

Neighbors talk weather

Gardens, snow, and the best days of the year in Josephville.

Town Square →
Ask your neighbors

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.