Photo: Huw Williams (Huwmanbeing) · Public domainAmbia has colder winter nights than 77% of U.S. towns
Midsummer highs settle at about 84°. It is a dry place: less rain and snow fall here than on 61% of U.S. towns. Compared with 1901–2000, the average now sits 0.9° higher. Seedlings are safe outdoors from about April 25, with the first autumn frost due around October 13.
A year in Ambia at a glance
Each month’s typical high and low, and what it brings.
What stands out about Ambia’s climate
Compared with towns across the U.S., with Ambia’s place in Indiana beside it.
What a year in Ambia feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 169 frost-free days a year
In half of years the last 32° night comes by April 25 and the first by October 13. Frost and day counts come from NOAA’s station at Boswell 4wnw, IN, 5 miles from the town’s center, at about the same height.
The 2023 USDA map puts Ambia’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −10°. 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 17 inches of snow a winter
Snow, measured at Boswell 4wnw, IN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 40 inches a year; June is the wettest month and February the driest. Rain or snow falls on about 96 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Ambia
89% 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 Boswell 4wnw, IN.
Living with Ambia’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
169 frost-free days in zone 6a. The last frost comes by Apr 25 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 13.
Months with highs of 62–84° and lows of 40° or more: May, June, August, September and October.
Parks & trails →Of the yearly building losses FEMA expects in Ambia from natural hazards, river flooding is the largest share (43%); heat waves, cold waves, winter storms and ice storms together are 24%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Ambia and similar climates
TownRatings has no climate map of the towns around Ambia yet.
Climates most like Ambia’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 |
|---|---|---|---|---|
| Ambia, IN | 17° | 84° | 40" | 17" |
| Van Wert, OH | 19° | 84° | 39" | 17" |
| Macomb, IL | 17° | 85° | 39" | 11" |
| Burlington, IA | 16° | 86° | 38" | 22" |
| New Brighton, PA | 21° | 84° | 41" | 20" |
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 Ambia averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.1°).
A smaller shift than in 82% 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 Ambia compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Ambia’s place among Indiana’s.
Ambia weather by month
Highs, lows and precipitation from NOAA’s grid at Ambia’s center; snow, wet days and snow on the ground from Boswell 4wnw, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 33° | 17° | 2.3" | 7.1" | 7 | 17° – 38° |
| February | 38° | 20° | 1.9" | 2.8" | 6 | 17° – 40° |
| March | 50° | 30° | 2.7" | 2.1" | 8 | 33° – 55° |
| April | 63° | 39° | 4.0" | 0.2" | 9 | 43° – 57° |
| May | 74° | 51° | 4.4" | 0.0" | 11 | 55° – 69° |
| June | 82° | 60° | 4.8" | 0.0" | 10 | 67° – 74° |
| July | 84° | 63° | 4.5" | 0.0" | 9 | 68° – 79° |
| August | 83° | 61° | 3.5" | 0.0" | 8 | 67° – 78° |
| September | 78° | 53° | 3.2" | 0.0" | 7 | 60° – 70° |
| October | 65° | 42° | 3.2" | 0.0" | 7 | 50° – 60° |
| November | 50° | 32° | 3.0" | 0.6" | 8 | 33° – 49° |
| December | 38° | 22° | 2.3" | 4.3" | 7 | 16° – 40° |
| Year | 62° | 41° | 39.8" | 17.1" | 96 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 16° to 40°. June is the most reliable, staying within 7°.
Where Ambia’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 Ambia’s center.
- Snow: Boswell 4wnw, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Boswell 4wnw, IN, 5 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 Ambia’s climate
What is the weather like in Ambia?
A typical July afternoon reaches 84°, a January night drops to 17°, and about 17 inches of snow falls in a normal winter. Colder January nights than 77% of U.S. towns; cooler July afternoons than 57% of U.S. towns.
How cold does it get in Ambia in winter?
January nights average 17°. About 138 nights a year reach 32° or below and 9 reach 0° or below. In the coldest January of the last 30 years the month averaged 17°.
How much snow does Ambia get?
About 17 inches in a normal winter at Boswell 4wnw, IN, most of it in January.
How hot does it get in Ambia?
July, with a typical high of 84° and a low of 63°. About 13 days a year reach 90° (Boswell 4wnw, IN).
When is the first and last frost in Ambia?
In half of years the last spring frost (32°) comes by April 25 and the first fall frost by October 13, about 169 frost-free days, at Boswell 4wnw, IN.
What growing zone is Ambia in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −10°.
What is the best time of year to visit Ambia?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, August, September and October. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Ambia getting warmer?
Yes: 1991–2020 averaged 0.9° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 82% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Ambia.
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.