Photo: Sarah Ewart · CC BY-SA 3.0Monroe City gets more rain and snow than 73% of U.S. towns: 48 inches of precipitation a year
Midsummer highs settle at about 87°. May is the wettest month, February the driest. In July, afternoons here are warmer than in 64% of U.S. towns. The frost-free window for a garden runs roughly April 11 to October 26.
A year in Monroe City at a glance
Each month’s typical high and low, and what it brings.
What stands out about Monroe City’s climate
Compared with towns across the U.S., with Monroe City’s place in Indiana beside it.
What a year in Monroe City feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 197 frost-free days a year
In half of years the last 32° night comes by April 11 and the first by October 26. Frost and day counts come from NOAA’s station at Vincennes 5 Ne, IN, 11 miles from the town’s center, at about the same height.
The 2023 USDA map puts Monroe City’s center in zone 6b: the coldest night of a typical winter, averaged over 1991–2020, reaches about −2°. 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 Washington 1 W, IN, falls mostly in January and December. Precipitation (rain plus melted snow) adds up to 48 inches a year; May is the wettest month and February the driest. Rain or snow falls on about 92 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Monroe City
78% 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 Vincennes 5 Ne, IN.
Living with Monroe City’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
197 frost-free days in zone 6b. The last frost comes by Apr 11 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.
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 Monroe City from natural hazards, river flooding is the largest share (38%); heat waves, cold waves, winter storms and ice storms together are 7%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Monroe City and similar climates
TownRatings has no climate map of the towns around Monroe City yet.
Climates most like Monroe City’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 |
|---|---|---|---|---|
| Monroe City, IN | 23° | 87° | 48" | 9.2" |
| Audubon, PA | 23° | 88° | 47" | 7.6" |
| Park Hills, MO | 22° | 87° | 46" | 8.7" |
| Hockessin, DE | 24° | 86° | 48" | 12" |
| Huntington, WV | 25° | 87° | 46" | 10" |
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 Monroe City averaged 1.0° warmer than the 1900s. The biggest change is in December (+2.0°).
A smaller shift than in 75% 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 Monroe City compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Monroe City’s place among Indiana’s.
Monroe City weather by month
Highs, lows and precipitation from NOAA’s grid at Monroe City’s center; snow, wet days and snow on the ground from Washington 1 W, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 39° | 23° | 3.4" | 2.9" | 8 | 4 | 24° – 42° |
| February | 44° | 26° | 2.8" | 2.0" | 6 | 3 | 23° – 44° |
| March | 55° | 34° | 3.9" | 1.0" | 9 | 1 | 37° – 58° |
| April | 67° | 44° | 5.0" | 0.0" | 10 | 0 | 49° – 61° |
| May | 76° | 55° | 5.4" | 0.0" | 11 | 0 | 60° – 73° |
| June | 85° | 63° | 4.7" | 0.0" | 9 | 0 | 69° – 78° |
| July | 87° | 66° | 4.3" | 0.0" | 8 | 0 | 72° – 83° |
| August | 86° | 64° | 3.2" | 0.0" | 7 | 0 | 71° – 80° |
| September | 81° | 57° | 3.7" | 0.0" | 6 | 0 | 65° – 74° |
| October | 69° | 45° | 3.5" | 0.1" | 6 | 0 | 53° – 62° |
| November | 55° | 35° | 3.9" | 0.1" | 7 | 0 | 37° – 51° |
| December | 43° | 27° | 3.6" | 3.1" | 7 | 2 | 22° – 45° |
| Year | 66° | 45° | 47.6" | 9.2" | 92 | 10 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 22° to 45°. June is the most reliable, staying within 9°.
Where Monroe City’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 Monroe City’s center.
- Snow: Washington 1 W, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Vincennes 5 Ne, IN, 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 Monroe City’s climate
What is the weather like in Monroe City?
A typical July afternoon reaches 87°, a January night drops to 23°, and about 9 inches of snow falls in a normal winter. Milder January nights than 55% of U.S. towns; hotter July afternoons than 64% of U.S. towns.
How cold does it get in Monroe City in winter?
January nights average 23°. About 110 nights a year reach 32° or below and 3 reach 0° or below. In the coldest January of the last 30 years the month averaged 24°.
How much snow does Monroe City get?
About 9.2 inches in a normal winter at Washington 1 W, IN, most of it in January and December, with snow on the ground about 10 days a year.
How hot does it get in Monroe City?
July, with a typical high of 87° and a low of 66°. About 40 days a year reach 90° (Vincennes 5 Ne, IN).
When is the first and last frost in Monroe City?
In half of years the last spring frost (32°) comes by April 11 and the first fall frost by October 26, about 197 frost-free days, at Vincennes 5 Ne, IN.
What growing zone is Monroe City in?
Zone 6b on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −2°.
What is the best time of year to visit Monroe City?
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 Monroe City 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 Monroe City.
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.