Lamb gets more rain and snow than 77% of U.S. towns: 48 inches of precipitation a year
The coldest hours of a January night bottom out at 24° on average. The seasons are far apart: from a winter night to a summer afternoon the average spans 63°. By July afternoons alone, it runs hotter than 63% of U.S. towns. Tender plants can go out after about April 9; in half of years the first frost comes by November 1.
A year in Lamb at a glance
Each month’s typical high and low, and what it brings.
What stands out about Lamb’s climate
Compared with towns across the U.S., with Lamb’s place in Indiana beside it.
What a year in Lamb feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 204 frost-free days a year
In half of years the last 32° night comes by April 9 and the first by November 1. Frost and day counts come from NOAA’s station at Vevay, IN, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Lamb’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 21 inches of snow a winter
Snow, measured at Vevay, 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 141 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Lamb
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 Vevay, IN.
Living with Lamb’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
204 frost-free days in zone 7a. The last frost comes by Apr 9 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Nov 1.
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 Lamb from natural hazards, river flooding is the largest share (53%); heat waves, cold waves, winter storms and ice storms together are 6%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Lamb and its neighbors
Every town next door is within a degree of Lamb in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Lamb’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 |
|---|---|---|---|---|
| Lamb, IN | 24° | 87° | 48" | 21" |
| Owings Mills, MD | 24° | 87° | 48" | 19" |
| Pike Creek Valley, DE | 24° | 87° | 48" | 20" |
| Colonia, NJ | 24° | 87° | 48" | 21" |
| Croydon, PA | 25° | 87° | 47" | 20" |
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.
Warmer than it used to be
The last 30 years in Lamb averaged 1.2° warmer than the 1900s. The biggest change is in December (+2.3°).
A smaller shift than in 61% 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 Lamb compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Lamb’s place among Indiana’s.
Lamb weather by month
Highs, lows and precipitation from NOAA’s grid at Lamb’s center; snow, wet days and snow on the ground from Vevay, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 42° | 24° | 3.4" | 6.1" | 15 | 6 | 25° – 43° |
| February | 46° | 26° | 3.2" | 4.4" | 11 | 3 | 24° – 46° |
| March | 56° | 35° | 4.3" | 2.7" | 13 | 1 | 38° – 58° |
| April | 68° | 44° | 4.9" | 0.3" | 13 | 0 | 50° – 63° |
| May | 77° | 54° | 5.3" | 0.0" | 14 | 0 | 59° – 73° |
| June | 84° | 62° | 4.8" | 0.0" | 12 | 0 | 69° – 76° |
| July | 87° | 66° | 4.5" | 0.0" | 11 | 0 | 71° – 81° |
| August | 87° | 65° | 3.7" | 0.0" | 10 | 0 | 71° – 81° |
| September | 81° | 57° | 3.5" | 0.0" | 8 | 0 | 65° – 76° |
| October | 69° | 46° | 3.4" | 0.5" | 9 | 0 | 53° – 64° |
| November | 56° | 35° | 3.4" | 0.7" | 12 | 0 | 39° – 51° |
| December | 45° | 29° | 4.0" | 5.9" | 14 | 4 | 26° – 48° |
| Year | 66° | 45° | 48.3" | 20.6" | 141 | 14 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 26° to 48°. June is the most reliable, staying within 8°.
Where Lamb’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 Lamb’s center.
- Snow: Vevay, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Vevay, IN, 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 Lamb’s climate
What is the weather like in Lamb?
A typical July afternoon reaches 87°, a January night drops to 24°, and about 21 inches of snow falls in a normal winter. Milder January nights than 61% of U.S. towns; hotter July afternoons than 63% of U.S. towns.
How cold does it get in Lamb in winter?
January nights average 24°. About 91 nights a year reach 32° or below. In the coldest January of the last 30 years the month averaged 25°.
How much snow does Lamb get?
About 21 inches in a normal winter at Vevay, IN, most of it in January and December, with snow on the ground about 14 days a year.
How hot does it get in Lamb?
July, with a typical high of 87° and a low of 66°. About 38 days a year reach 90° (Vevay, IN).
When is the first and last frost in Lamb?
In half of years the last spring frost (32°) comes by April 9 and the first fall frost by November 1, about 204 frost-free days, at Vevay, IN.
What growing zone is Lamb 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 Lamb?
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 Lamb getting warmer?
Yes: 1991–2020 averaged 1.2° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 61% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Lamb.
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.