Nights turn raw in Alvan (Alvin) each January, colder than in 72% of U.S. towns
Sunny July days climb to about 85°. It is a dry place: less rain and snow fall here than on 61% of U.S. towns. The latest 30-year average runs 0.8° warmer than 1901–2000’s, with December up the most. Seedlings are safe outdoors from about April 22, with the first autumn frost due around October 19.
A year in Alvan (Alvin) at a glance
Each month’s typical high and low, and what it brings.
What stands out about Alvan (Alvin)’s climate
Compared with towns across the U.S., with Alvan (Alvin)’s place in Illinois beside it.
What a year in Alvan (Alvin) feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 180 frost-free days a year
In half of years the last 32° night comes by April 22 and the first by October 19. Frost and day counts come from NOAA’s station at Hoopeston, IL, 12 miles from the town’s center, at about the same height.
The 2023 USDA map puts Alvan (Alvin)’s center in zone 6a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −9°. 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 Pence 1 Sw, IN, is heaviest from January through February, about 4 inches a month. 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 109 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Alvan (Alvin)
85% of the work is heating. 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 Hoopeston, IL.
Living with Alvan (Alvin)’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
180 frost-free days in zone 6a. The last frost comes by Apr 22 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 19.
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 Alvan (Alvin) from natural hazards, river flooding is the largest share (50%); heat waves, cold waves, winter storms and ice storms together are 21%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Alvan (Alvin) and similar climates
TownRatings has no climate map of the towns around Alvan (Alvin) yet.
Climates most like Alvan (Alvin)’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 |
|---|---|---|---|---|
| Alvan (Alvin), IL | 18° | 85° | 40" | 13" |
| St. Marys, OH | 19° | 84° | 39" | 10" |
| Fort Madison, IA | 17° | 86° | 39" | 18" |
| Macon, MO | 18° | 87° | 42" | 15" |
| Monaca, PA | 21° | 84° | 40" | 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 Alvan (Alvin) averaged 0.8° warmer than the 1900s. The biggest change is in December (+1.9°).
A smaller shift than in 89% 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 Alvan (Alvin) compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Alvan (Alvin)’s place among Illinois’.
Alvan (Alvin) weather by month
Highs, lows and precipitation from NOAA’s grid at Alvan (Alvin)’s center; snow, wet days and snow on the ground from Pence 1 Sw, IN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 34° | 18° | 2.3" | 3.5" | 9 | 8 | 18° – 38° |
| February | 39° | 21° | 2.0" | 3.5" | 8 | 7 | 17° – 40° |
| March | 50° | 30° | 2.8" | 2.2" | 9 | 2 | 33° – 55° |
| April | 63° | 40° | 4.1" | 0.3" | 10 | 0 | 44° – 58° |
| May | 74° | 51° | 4.4" | 0.0" | 12 | 0 | 56° – 70° |
| June | 83° | 60° | 4.8" | 0.0" | 11 | 0 | 67° – 74° |
| July | 85° | 63° | 4.2" | 0.0" | 10 | 0 | 69° – 80° |
| August | 83° | 61° | 3.5" | 0.0" | 8 | 0 | 67° – 78° |
| September | 78° | 53° | 3.1" | 0.0" | 8 | 0 | 61° – 71° |
| October | 66° | 42° | 3.3" | 0.0" | 8 | 0 | 50° – 60° |
| November | 51° | 32° | 3.1" | 0.6" | 9 | 1 | 34° – 49° |
| December | 39° | 23° | 2.3" | 2.5" | 9 | 5 | 17° – 40° |
| Year | 62° | 41° | 39.8" | 12.6" | 109 | 22 |
How much a month can swing
A normal is an average. December swings the most: from 1991 to 2020 its average ranged from 17° to 40°. June is the most reliable, staying within 7°.
Where Alvan (Alvin)’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 Alvan (Alvin)’s center.
- Snow: Pence 1 Sw, IN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Hoopeston, IL, 12 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 Alvan (Alvin)’s climate
What is the weather like in Alvan (Alvin)?
A typical July afternoon reaches 85°, a January night drops to 18°, and about 13 inches of snow falls in a normal winter. Colder January nights than 72% of U.S. towns; cooler July afternoons than 53% of U.S. towns.
How cold does it get in Alvan (Alvin) in winter?
January nights average 18°. About 118 nights a year reach 32° or below and 6 reach 0° or below. In the coldest January of the last 30 years the month averaged 18°.
How much snow does Alvan (Alvin) get?
About 13 inches in a normal winter at Pence 1 Sw, IN, heaviest from January through February, about 4 inches a month, with snow on the ground about 22 days a year.
How hot does it get in Alvan (Alvin)?
July, with a typical high of 85° and a low of 63°. About 20 days a year reach 90° (Hoopeston, IL).
When is the first and last frost in Alvan (Alvin)?
In half of years the last spring frost (32°) comes by April 22 and the first fall frost by October 19, about 180 frost-free days, at Hoopeston, IL.
What growing zone is Alvan (Alvin) in?
Zone 6a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −9°.
What is the best time of year to visit Alvan (Alvin)?
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 Alvan (Alvin) getting warmer?
Yes: 1991–2020 averaged 0.8° warmer than 1901–2000 on NOAA’s grid. A smaller shift than 89% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Alvan (Alvin).
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.