Virden, Illinois climate: Normal weather by month, frost dates and records
Virden's normal year runs from 21°F January nights to 87°F July afternoons, with 38.4 inches of precipitation and 16 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.7°C, January lows of −6°C, July highs of 31°C, 974 mm of precipitation a year.
- NOAA stationVirden
- Station IDUSC00118860
- Location39.51°N 89.77°W
- Elevation675 ft (206 m)
- From the centerunder 1 mile
- Population3,147
On October 23, the normal high in Virden is 64°F and the normal low 45°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Virden.
- Jan 36° 21°
- Feb 42° 25°
- Mar 54° 34°
- Apr 67° 45°
- May 76° 55°
- Jun 83° 65°
- Jul 87° 68°
- Aug 85° 66°
- Sep 80° 58°
- Oct 67° 47°
- Nov 52° 35°
- Dec 41° 26°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Virden each month?
July is the warmest month, with normal highs of 87°F; January the coldest, with normal lows of 21°F. The most precipitation falls in June (4.29 in), the least in January (1.97 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 36°F | 21°F | 28.6°F | 1.97 | 6.7 | 6 | <1 | 26 | 9 h 40 min |
| February | 42°F | 25°F | 33.1°F | 2.27 | 3.1 | 5 | <1 | 21 | 10 h 40 min |
| March | 54°F | 34°F | 43.9°F | 2.54 | 2.3 | 7 | <1 | 14 | 11 h 50 min |
| April | 67°F | 45°F | 56.1°F | 4.23 | 0.0 | 9 | <1 | 3 | 13 h 10 min |
| May | 76°F | 55°F | 65.3°F | 4.19 | 0.0 | 10 | 1 | <1 | 14 h 20 min |
| June | 83°F | 65°F | 74.0°F | 4.29 | 0.0 | 8 | 5 | <1 | 15 h |
| July | 87°F | 68°F | 77.2°F | 3.46 | 0.0 | 7 | 9 | <1 | 14 h 40 min |
| August | 85°F | 66°F | 75.5°F | 3.09 | 0.0 | 7 | 7 | <1 | 13 h 50 min |
| September | 80°F | 58°F | 69.1°F | 3.42 | 0.0 | 6 | 3 | <1 | 12 h 30 min |
| October | 67°F | 47°F | 57.3°F | 3.39 | 0.0 | 7 | <1 | 2 | 11 h 10 min |
| November | 52°F | 35°F | 43.8°F | 3.10 | 0.7 | 7 | <1 | 12 | 10 h |
| December | 41°F | 26°F | 33.6°F | 2.41 | 3.3 | 6 | <1 | 24 | 9 h 20 min |
| Year (annual) | 64°F | 46°F | 54.8°F | 38.36 | 16.1 | 84 | 25 | 101 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 2°C | −6°C | −1.9°C | 50 mm | 17 cm |
| February | 5°C | −4°C | 0.6°C | 58 mm | 8 cm |
| March | 12°C | 1°C | 6.6°C | 65 mm | 6 cm |
| April | 19°C | 7°C | 13.4°C | 107 mm | 0 cm |
| May | 24°C | 13°C | 18.5°C | 106 mm | 0 cm |
| June | 29°C | 18°C | 23.3°C | 109 mm | 0 cm |
| July | 31°C | 20°C | 25.1°C | 88 mm | 0 cm |
| August | 30°C | 19°C | 24.2°C | 78 mm | 0 cm |
| September | 27°C | 15°C | 20.6°C | 87 mm | 0 cm |
| October | 20°C | 8°C | 14.1°C | 86 mm | 0 cm |
| November | 11°C | 2°C | 6.6°C | 79 mm | 2 cm |
| December | 5°C | −3°C | 0.9°C | 61 mm | 8 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00118860; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Virden?
Normal highs sit between 65°F and 85°F in April, May, June, September and October. Of those, September has the fewest days with rain (6).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00118860.
When is the last frost in Virden?
In Virden, the last spring frost (32°F) comes after April 7 in half of years and after April 21 in one year in ten; the first autumn frost comes before October 29 in half of years and before October 16 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 71 year in 10 after April 21; 9 in 10 after March 22
- First autumn frost, half of years before
- October 291 year in 10 before October 16; 9 in 10 before November 11
NOAA puts the median frost-free season at 205 days, and the season without a hard freeze (28°F) at 225 days.
A hard freeze (28°F) comes after March 28 in half of springs and before November 7 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Virden in zone 6b in ZIP code 62690, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Virden's NOAA station is in zone 6a: the coldest night of a typical year reaches −5°F (16 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Illinois · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00118860; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Virden?
In a normal year in Virden, 25 days a year reach 90°F, 101 nights fall to 32°F or colder and 84 days bring measurable precipitation.
- Days at 90°F or more
- 25a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 101a normal year
- Days that stay below freezing
- 29high of 32°F or less
- Days with 0.01 inch of precipitation
- 84a normal year
- Days with 1 inch of snow or more
- 6a normal year
The highest temperature in this station's record (since 1945) is 114°F, on July 14, 1954; the lowest is −22°F, on January 17, 1977.
The wettest calendar year on that record is 1993, with 46.56 in; the snowiest season is 1977–78, with 65.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00118860; records: ACIS (NOAA Regional Climate Centers), station USC00118860. Records use complete months only; a month missing more than three days is left out.
How sunny is Virden?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Virden, 4.1 kWh per square metre a day. July is the sunniest month (83%) and December the cloudiest (63%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 64% | 1.9 |
| February | 66% | 2.8 |
| March | 67% | 3.7 |
| April | 72% | 5.0 |
| May | 73% | 5.6 |
| June | 81% | 6.4 |
| July | 83% | 6.4 |
| August | 82% | 5.7 |
| September | 82% | 4.7 |
| October | 74% | 3.3 |
| November | 71% | 2.3 |
| December | 63% | 1.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Virden need?
A normal year in Virden brings 5,002 heating degree days, 7% fewer than the median U.S. place (5,373), and 1,321 cooling degree days, 46% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 4,040 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,128 | 0 |
| February | 892 | 0 |
| March | 655 | 3 |
| April | 295 | 26 |
| May | 93 | 104 |
| June | 9 | 280 |
| July | 0 | 380 |
| August | 2 | 327 |
| September | 45 | 167 |
| October | 271 | 34 |
| November | 639 | 1 |
| December | 973 | 0 |
| Year (annual) | 5,002 | 1,321 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00118860. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Virden's climate compare?
Virden is warmer than 116 of the other 143 places with their own NOAA record in Illinois, and wetter than 38. Across the 7,247 U.S. stations with normals, its annual mean of 54.8°F is warmer than 59%.
In the Köppen classification computed from these normals, Virden is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Virden share this climate record?
10 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Auburn, IL4,453 people · 5 mi N
- Pawnee, IL2,698 people · 12 mi NE
- Girard, IL1,770 people · 4 mi S
- Waverly, IL1,147 people · 11 mi NW
- Divernon, IL1,116 people · 8 mi NE
- Loami, IL797 people · 12 mi N
- Farmersville, IL667 people · 8 mi SE
- Thayer, IL616 people · 2 mi N
- Nilwood, IL196 people · 8 mi S
- Modesto, IL176 people · 11 mi W
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Virden's climate
What is the coldest month in Virden?
January, with a normal high of 36°F and a normal low of 21°F. The warmest is July (87°F by day, 68°F at night).
Does it snow in Virden?
Yes: 16 inches in a normal year, falling on 7 days with 0.1 inch or more, the most in January (6.7 inches).
What is the rainiest month in Virden?
June, with 4.29 in of precipitation in a normal year; the driest is January with 1.97 in.
What plant hardiness zone is Virden in?
The USDA's 2023 map puts Virden in zone 6b in ZIP code 62690, the nearest ZIP area. By the same method at Virden's NOAA station, the coldest night of a typical year reaches −5°F (16 years, 1991-2020): zone 6a.
How late can frost come in Virden?
In half of years the last 32°F night comes after April 7; in one year in ten it comes after April 21. Waiting until April 21 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Illinois climateThe statewide normals and every place in the state
- Carlinville, IL16 miles from this station, 53.4°F a year
- Morrisonville, IL17 miles from this station, 53.6°F a year
- Springfield, IL24 miles from this station, 54.0°F a year
- Hillsboro, IL28 miles from this station, 55.5°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made